From 26c5032eaa64090b2a01973b0c6ea9e7f6a80fa7 Mon Sep 17 00:00:00 2001
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: Tue, 4 Jul 2006 14:16:28 +1000
Subject: [POWERPC] Add briq support to CHRP

The support for Briq machines has been floating around as patches for
ages. This cleans it up and adds it once for all.

Some of this is based on initial code provided by Karsten Jeppesen
<karsten@jeppesens.com> and mostly rewritten from scratch by me.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
---
 include/asm-powerpc/processor.h | 1 +
 1 file changed, 1 insertion(+)

(limited to 'include')

diff --git a/include/asm-powerpc/processor.h b/include/asm-powerpc/processor.h
index 22e54a2a6604..6cb6fb19e57f 100644
--- a/include/asm-powerpc/processor.h
+++ b/include/asm-powerpc/processor.h
@@ -32,6 +32,7 @@
 #define _CHRP_Motorola	0x04	/* motorola chrp, the cobra */
 #define _CHRP_IBM	0x05	/* IBM chrp, the longtrail and longtrail 2 */
 #define _CHRP_Pegasos	0x06	/* Genesi/bplan's Pegasos and Pegasos2 */
+#define _CHRP_briq	0x07	/* TotalImpact's briQ */
 
 #if defined(__KERNEL__) && defined(CONFIG_PPC32)
 
-- 
cgit v1.2.3


From b5a1a9abe1a54ba40a9612001920f98bbdd0c56f Mon Sep 17 00:00:00 2001
From: Jeremy Kerr <jk@ozlabs.org>
Date: Tue, 4 Jul 2006 16:46:44 +1000
Subject: [POWERPC] Use const qualifiers for prom parsing utilites

The of_bus callbacks map and get_flags can be constified, as they don't
alter the range or addr arguments. of_dump_addr and of_read_addr can
also be constified.

Built for 32- and 64-bit powerpc

Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
---
 arch/powerpc/kernel/prom_parse.c | 22 ++++++++++++----------
 include/asm-powerpc/prom.h       |  2 +-
 2 files changed, 13 insertions(+), 11 deletions(-)

(limited to 'include')

diff --git a/arch/powerpc/kernel/prom_parse.c b/arch/powerpc/kernel/prom_parse.c
index 21009b1f7869..e9960170667b 100644
--- a/arch/powerpc/kernel/prom_parse.c
+++ b/arch/powerpc/kernel/prom_parse.c
@@ -27,7 +27,7 @@
 
 /* Debug utility */
 #ifdef DEBUG
-static void of_dump_addr(const char *s, u32 *addr, int na)
+static void of_dump_addr(const char *s, const u32 *addr, int na)
 {
 	printk("%s", s);
 	while(na--)
@@ -35,7 +35,7 @@ static void of_dump_addr(const char *s, u32 *addr, int na)
 	printk("\n");
 }
 #else
-static void of_dump_addr(const char *s, u32 *addr, int na) { }
+static void of_dump_addr(const char *s, const u32 *addr, int na) { }
 #endif
 
 
@@ -46,9 +46,10 @@ struct of_bus {
 	int		(*match)(struct device_node *parent);
 	void		(*count_cells)(struct device_node *child,
 				       int *addrc, int *sizec);
-	u64		(*map)(u32 *addr, u32 *range, int na, int ns, int pna);
+	u64		(*map)(u32 *addr, const u32 *range,
+				int na, int ns, int pna);
 	int		(*translate)(u32 *addr, u64 offset, int na);
-	unsigned int	(*get_flags)(u32 *addr);
+	unsigned int	(*get_flags)(const u32 *addr);
 };
 
 
@@ -65,7 +66,8 @@ static void of_bus_default_count_cells(struct device_node *dev,
 		*sizec = prom_n_size_cells(dev);
 }
 
-static u64 of_bus_default_map(u32 *addr, u32 *range, int na, int ns, int pna)
+static u64 of_bus_default_map(u32 *addr, const u32 *range,
+		int na, int ns, int pna)
 {
 	u64 cp, s, da;
 
@@ -93,7 +95,7 @@ static int of_bus_default_translate(u32 *addr, u64 offset, int na)
 	return 0;
 }
 
-static unsigned int of_bus_default_get_flags(u32 *addr)
+static unsigned int of_bus_default_get_flags(const u32 *addr)
 {
 	return IORESOURCE_MEM;
 }
@@ -118,7 +120,7 @@ static void of_bus_pci_count_cells(struct device_node *np,
 		*sizec = 2;
 }
 
-static u64 of_bus_pci_map(u32 *addr, u32 *range, int na, int ns, int pna)
+static u64 of_bus_pci_map(u32 *addr, const u32 *range, int na, int ns, int pna)
 {
 	u64 cp, s, da;
 
@@ -143,7 +145,7 @@ static int of_bus_pci_translate(u32 *addr, u64 offset, int na)
 	return of_bus_default_translate(addr + 1, offset, na - 1);
 }
 
-static unsigned int of_bus_pci_get_flags(u32 *addr)
+static unsigned int of_bus_pci_get_flags(const u32 *addr)
 {
 	unsigned int flags = 0;
 	u32 w = addr[0];
@@ -178,7 +180,7 @@ static void of_bus_isa_count_cells(struct device_node *child,
 		*sizec = 1;
 }
 
-static u64 of_bus_isa_map(u32 *addr, u32 *range, int na, int ns, int pna)
+static u64 of_bus_isa_map(u32 *addr, const u32 *range, int na, int ns, int pna)
 {
 	u64 cp, s, da;
 
@@ -203,7 +205,7 @@ static int of_bus_isa_translate(u32 *addr, u64 offset, int na)
 	return of_bus_default_translate(addr + 1, offset, na - 1);
 }
 
-static unsigned int of_bus_isa_get_flags(u32 *addr)
+static unsigned int of_bus_isa_get_flags(const u32 *addr)
 {
 	unsigned int flags = 0;
 	u32 w = addr[0];
diff --git a/include/asm-powerpc/prom.h b/include/asm-powerpc/prom.h
index b095a285c84b..56f6ea0c76de 100644
--- a/include/asm-powerpc/prom.h
+++ b/include/asm-powerpc/prom.h
@@ -198,7 +198,7 @@ extern int release_OF_resource(struct device_node* node, int index);
 
 
 /* Helper to read a big number */
-static inline u64 of_read_number(u32 *cell, int size)
+static inline u64 of_read_number(const u32 *cell, int size)
 {
 	u64 r = 0;
 	while (size--)
-- 
cgit v1.2.3


From dac411e7aa92d23dadbcb8721845ab88577294c7 Mon Sep 17 00:00:00 2001
From: Michael Ellerman <michael@ellerman.id.au>
Date: Thu, 13 Jul 2006 17:52:04 +1000
Subject: [POWERPC] iseries: Move e2a()/strne2a() into their only caller

The ASCII -> EBCDIC functions, e2a() and strne2a() are now only used in
dt.c, so move them in there.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
---
 arch/powerpc/lib/Makefile           |   1 -
 arch/powerpc/lib/e2a.c              | 116 ------------------------------------
 arch/powerpc/platforms/iseries/dt.c |  98 +++++++++++++++++++++++++++++-
 include/asm-powerpc/system.h        |   5 --
 4 files changed, 97 insertions(+), 123 deletions(-)
 delete mode 100644 arch/powerpc/lib/e2a.c

(limited to 'include')

diff --git a/arch/powerpc/lib/Makefile b/arch/powerpc/lib/Makefile
index ff7096458249..336dd191f768 100644
--- a/arch/powerpc/lib/Makefile
+++ b/arch/powerpc/lib/Makefile
@@ -14,7 +14,6 @@ endif
 obj-$(CONFIG_PPC64)	+= checksum_64.o copypage_64.o copyuser_64.o \
 			   memcpy_64.o usercopy_64.o mem_64.o string.o \
 			   strcase.o
-obj-$(CONFIG_PPC_ISERIES) += e2a.o
 obj-$(CONFIG_XMON)	+= sstep.o
 
 ifeq ($(CONFIG_PPC64),y)
diff --git a/arch/powerpc/lib/e2a.c b/arch/powerpc/lib/e2a.c
deleted file mode 100644
index 4b72ed8fd50e..000000000000
--- a/arch/powerpc/lib/e2a.c
+++ /dev/null
@@ -1,116 +0,0 @@
-/*
- *  EBCDIC to ASCII conversion
- *
- * This function moved here from arch/powerpc/platforms/iseries/viopath.c 
- *
- * (C) Copyright 2000-2004 IBM Corporation
- *
- * This program is free software;  you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) anyu later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- */
-
-#include <linux/module.h>
-
-unsigned char e2a(unsigned char x)
-{
-	switch (x) {
-	case 0xF0:
-		return '0';
-	case 0xF1:
-		return '1';
-	case 0xF2:
-		return '2';
-	case 0xF3:
-		return '3';
-	case 0xF4:
-		return '4';
-	case 0xF5:
-		return '5';
-	case 0xF6:
-		return '6';
-	case 0xF7:
-		return '7';
-	case 0xF8:
-		return '8';
-	case 0xF9:
-		return '9';
-	case 0xC1:
-		return 'A';
-	case 0xC2:
-		return 'B';
-	case 0xC3:
-		return 'C';
-	case 0xC4:
-		return 'D';
-	case 0xC5:
-		return 'E';
-	case 0xC6:
-		return 'F';
-	case 0xC7:
-		return 'G';
-	case 0xC8:
-		return 'H';
-	case 0xC9:
-		return 'I';
-	case 0xD1:
-		return 'J';
-	case 0xD2:
-		return 'K';
-	case 0xD3:
-		return 'L';
-	case 0xD4:
-		return 'M';
-	case 0xD5:
-		return 'N';
-	case 0xD6:
-		return 'O';
-	case 0xD7:
-		return 'P';
-	case 0xD8:
-		return 'Q';
-	case 0xD9:
-		return 'R';
-	case 0xE2:
-		return 'S';
-	case 0xE3:
-		return 'T';
-	case 0xE4:
-		return 'U';
-	case 0xE5:
-		return 'V';
-	case 0xE6:
-		return 'W';
-	case 0xE7:
-		return 'X';
-	case 0xE8:
-		return 'Y';
-	case 0xE9:
-		return 'Z';
-	}
-	return ' ';
-}
-EXPORT_SYMBOL(e2a);
-
-unsigned char* strne2a(unsigned char *dest, const unsigned char *src, size_t n)
-{
-	int i;
-
-	n = strnlen(src, n);
-
-	for (i = 0; i < n; i++)
-		dest[i] = e2a(src[i]);
-
-	return dest;
-}
diff --git a/arch/powerpc/platforms/iseries/dt.c b/arch/powerpc/platforms/iseries/dt.c
index d194140c1ebf..39c676ab9d6d 100644
--- a/arch/powerpc/platforms/iseries/dt.c
+++ b/arch/powerpc/platforms/iseries/dt.c
@@ -1,5 +1,6 @@
 /*
- *    Copyright (c) 2005-2006 Michael Ellerman, IBM Corporation
+ *    Copyright (C) 2005-2006 Michael Ellerman, IBM Corporation
+ *    Copyright (C) 2000-2004, IBM Corporation
  *
  *    Description:
  *      This file contains all the routines to build a flattened device
@@ -76,6 +77,101 @@ static char __initdata device_type_pci[] = "pci";
 static char __initdata device_type_vdevice[] = "vdevice";
 static char __initdata device_type_vscsi[] = "vscsi";
 
+
+/* EBCDIC to ASCII conversion routines */
+
+unsigned char e2a(unsigned char x)
+{
+	switch (x) {
+	case 0xF0:
+		return '0';
+	case 0xF1:
+		return '1';
+	case 0xF2:
+		return '2';
+	case 0xF3:
+		return '3';
+	case 0xF4:
+		return '4';
+	case 0xF5:
+		return '5';
+	case 0xF6:
+		return '6';
+	case 0xF7:
+		return '7';
+	case 0xF8:
+		return '8';
+	case 0xF9:
+		return '9';
+	case 0xC1:
+		return 'A';
+	case 0xC2:
+		return 'B';
+	case 0xC3:
+		return 'C';
+	case 0xC4:
+		return 'D';
+	case 0xC5:
+		return 'E';
+	case 0xC6:
+		return 'F';
+	case 0xC7:
+		return 'G';
+	case 0xC8:
+		return 'H';
+	case 0xC9:
+		return 'I';
+	case 0xD1:
+		return 'J';
+	case 0xD2:
+		return 'K';
+	case 0xD3:
+		return 'L';
+	case 0xD4:
+		return 'M';
+	case 0xD5:
+		return 'N';
+	case 0xD6:
+		return 'O';
+	case 0xD7:
+		return 'P';
+	case 0xD8:
+		return 'Q';
+	case 0xD9:
+		return 'R';
+	case 0xE2:
+		return 'S';
+	case 0xE3:
+		return 'T';
+	case 0xE4:
+		return 'U';
+	case 0xE5:
+		return 'V';
+	case 0xE6:
+		return 'W';
+	case 0xE7:
+		return 'X';
+	case 0xE8:
+		return 'Y';
+	case 0xE9:
+		return 'Z';
+	}
+	return ' ';
+}
+EXPORT_SYMBOL(e2a);
+
+unsigned char* strne2a(unsigned char *dest, const unsigned char *src, size_t n)
+{
+	int i;
+
+	n = strnlen(src, n);
+
+	for (i = 0; i < n; i++)
+		dest[i] = e2a(src[i]);
+
+	return dest;
+}
+
 static struct iseries_flat_dt * __init dt_init(void)
 {
 	struct iseries_flat_dt *dt;
diff --git a/include/asm-powerpc/system.h b/include/asm-powerpc/system.h
index d075725bf444..5deb7bc7bb1f 100644
--- a/include/asm-powerpc/system.h
+++ b/include/asm-powerpc/system.h
@@ -169,11 +169,6 @@ extern u32 booke_wdt_enabled;
 extern u32 booke_wdt_period;
 #endif /* CONFIG_BOOKE_WDT */
 
-/* EBCDIC -> ASCII conversion for [0-9A-Z] on iSeries */
-extern unsigned char e2a(unsigned char);
-extern unsigned char* strne2a(unsigned char *dest,
-		const unsigned char *src, size_t n);
-
 struct device_node;
 extern void note_scsi_host(struct device_node *, void *);
 
-- 
cgit v1.2.3


From c59acae85409fdf5d7574e90009c8410daf38938 Mon Sep 17 00:00:00 2001
From: Michael Ellerman <michael@ellerman.id.au>
Date: Thu, 13 Jul 2006 17:52:09 +1000
Subject: [POWERPC] iseries: Make ItExtVpdPanel private to iSeries

No one outside platforms/iseries needs ItExtVpdPanel anymore, so move
it in there. It used to be needed by lparcfg, and so was exported, but
isn't needed anymore, so unexport it.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
---
 arch/powerpc/kernel/lparcfg.c                     |  1 -
 arch/powerpc/platforms/iseries/dt.c               |  2 +-
 arch/powerpc/platforms/iseries/it_exp_vpd_panel.h | 51 +++++++++++++++++++++++
 arch/powerpc/platforms/iseries/lpardata.c         |  3 +-
 include/asm-powerpc/iseries/it_exp_vpd_panel.h    | 51 -----------------------
 5 files changed, 53 insertions(+), 55 deletions(-)
 create mode 100644 arch/powerpc/platforms/iseries/it_exp_vpd_panel.h
 delete mode 100644 include/asm-powerpc/iseries/it_exp_vpd_panel.h

(limited to 'include')

diff --git a/arch/powerpc/kernel/lparcfg.c b/arch/powerpc/kernel/lparcfg.c
index 23f34daa044a..2d94b372d49b 100644
--- a/arch/powerpc/kernel/lparcfg.c
+++ b/arch/powerpc/kernel/lparcfg.c
@@ -32,7 +32,6 @@
 #include <asm/rtas.h>
 #include <asm/system.h>
 #include <asm/time.h>
-#include <asm/iseries/it_exp_vpd_panel.h>
 #include <asm/prom.h>
 #include <asm/vdso_datapage.h>
 
diff --git a/arch/powerpc/platforms/iseries/dt.c b/arch/powerpc/platforms/iseries/dt.c
index c5f59a8b9ef3..aa582262aefd 100644
--- a/arch/powerpc/platforms/iseries/dt.c
+++ b/arch/powerpc/platforms/iseries/dt.c
@@ -34,13 +34,13 @@
 #include <asm/iseries/hv_types.h>
 #include <asm/iseries/hv_lp_config.h>
 #include <asm/iseries/hv_call_xm.h>
-#include <asm/iseries/it_exp_vpd_panel.h>
 #include <asm/udbg.h>
 
 #include "processor_vpd.h"
 #include "call_hpt.h"
 #include "call_pci.h"
 #include "pci.h"
+#include "it_exp_vpd_panel.h"
 
 #ifdef DEBUG
 #define DBG(fmt...) udbg_printf(fmt)
diff --git a/arch/powerpc/platforms/iseries/it_exp_vpd_panel.h b/arch/powerpc/platforms/iseries/it_exp_vpd_panel.h
new file mode 100644
index 000000000000..6de9097b7f57
--- /dev/null
+++ b/arch/powerpc/platforms/iseries/it_exp_vpd_panel.h
@@ -0,0 +1,51 @@
+/*
+ * Copyright (C) 2002  Dave Boutcher IBM Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ */
+#ifndef _PLATFORMS_ISERIES_IT_EXT_VPD_PANEL_H
+#define _PLATFORMS_ISERIES_IT_EXT_VPD_PANEL_H
+
+/*
+ *	This struct maps the panel information
+ *
+ * Warning:
+ *	This data must match the architecture for the panel information
+ */
+
+#include <asm/types.h>
+
+struct ItExtVpdPanel {
+	/* Definition of the Extended Vpd On Panel Data Area */
+	char	systemSerial[8];
+	char	mfgID[4];
+	char	reserved1[24];
+	char	machineType[4];
+	char	systemID[6];
+	char	somUniqueCnt[4];
+	char	serialNumberCount;
+	char	reserved2[7];
+	u16	bbu3;
+	u16	bbu2;
+	u16	bbu1;
+	char	xLocationLabel[8];
+	u8	xRsvd1[6];
+	u16	xFrameId;
+	u8	xRsvd2[48];
+};
+
+extern struct ItExtVpdPanel	xItExtVpdPanel;
+
+#endif /* _PLATFORMS_ISERIES_IT_EXT_VPD_PANEL_H */
diff --git a/arch/powerpc/platforms/iseries/lpardata.c b/arch/powerpc/platforms/iseries/lpardata.c
index a7769445d6c7..13e9bd132254 100644
--- a/arch/powerpc/platforms/iseries/lpardata.c
+++ b/arch/powerpc/platforms/iseries/lpardata.c
@@ -18,7 +18,6 @@
 #include <asm/iseries/it_lp_reg_save.h>
 #include <asm/paca.h>
 #include <asm/iseries/lpar_map.h>
-#include <asm/iseries/it_exp_vpd_panel.h>
 #include <asm/iseries/it_lp_queue.h>
 
 #include "naca.h"
@@ -27,6 +26,7 @@
 #include "ipl_parms.h"
 #include "processor_vpd.h"
 #include "release_data.h"
+#include "it_exp_vpd_panel.h"
 
 /* The HvReleaseData is the root of the information shared between
  * the hypervisor and Linux.
@@ -134,7 +134,6 @@ struct ItIplParmsReal xItIplParmsReal __attribute__((__section__(".data")));
 
 /* May be filled in by the hypervisor so cannot end up in the BSS */
 struct ItExtVpdPanel xItExtVpdPanel __attribute__((__section__(".data")));
-EXPORT_SYMBOL(xItExtVpdPanel);
 
 #define maxPhysicalProcessors 32
 
diff --git a/include/asm-powerpc/iseries/it_exp_vpd_panel.h b/include/asm-powerpc/iseries/it_exp_vpd_panel.h
deleted file mode 100644
index 304a609ae21a..000000000000
--- a/include/asm-powerpc/iseries/it_exp_vpd_panel.h
+++ /dev/null
@@ -1,51 +0,0 @@
-/*
- * Copyright (C) 2002  Dave Boutcher IBM Corporation
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
- */
-#ifndef _ASM_POWERPC_ISERIES_IT_EXT_VPD_PANEL_H
-#define _ASM_POWERPC_ISERIES_IT_EXT_VPD_PANEL_H
-
-/*
- *	This struct maps the panel information
- *
- * Warning:
- *	This data must match the architecture for the panel information
- */
-
-#include <asm/types.h>
-
-struct ItExtVpdPanel {
-	/* Definition of the Extended Vpd On Panel Data Area */
-	char	systemSerial[8];
-	char	mfgID[4];
-	char	reserved1[24];
-	char	machineType[4];
-	char	systemID[6];
-	char	somUniqueCnt[4];
-	char	serialNumberCount;
-	char	reserved2[7];
-	u16	bbu3;
-	u16	bbu2;
-	u16	bbu1;
-	char	xLocationLabel[8];
-	u8	xRsvd1[6];
-	u16	xFrameId;
-	u8	xRsvd2[48];
-};
-
-extern struct ItExtVpdPanel	xItExtVpdPanel;
-
-#endif /* _ASM_POWERPC_ISERIES_IT_EXT_VPD_PANEL_H */
-- 
cgit v1.2.3


From a2ced11b6af59854cc2a2791dccd8b6c0da2f733 Mon Sep 17 00:00:00 2001
From: Michael Ellerman <michael@ellerman.id.au>
Date: Thu, 13 Jul 2006 17:52:12 +1000
Subject: [POWERPC] iseries: Make HvLpConfig_get(Primary)LpIndex functions

HvLpConfig_get(Primary)LpIndex are currently static inlines that return
fields from the itLpNaca, if we make them real functions we can make the
itLpNaca private to iSeries.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
---
 arch/powerpc/platforms/iseries/hvlpconfig.c | 13 +++++++++++++
 arch/powerpc/platforms/iseries/setup.c      |  1 +
 include/asm-powerpc/iseries/hv_lp_config.h  | 13 ++-----------
 3 files changed, 16 insertions(+), 11 deletions(-)

(limited to 'include')

diff --git a/arch/powerpc/platforms/iseries/hvlpconfig.c b/arch/powerpc/platforms/iseries/hvlpconfig.c
index 663a1affb4bb..cfcedaae6ea2 100644
--- a/arch/powerpc/platforms/iseries/hvlpconfig.c
+++ b/arch/powerpc/platforms/iseries/hvlpconfig.c
@@ -18,9 +18,22 @@
 
 #include <linux/module.h>
 #include <asm/iseries/hv_lp_config.h>
+#include <asm/iseries/it_lp_naca.h>
 
 HvLpIndex HvLpConfig_getLpIndex_outline(void)
 {
 	return HvLpConfig_getLpIndex();
 }
 EXPORT_SYMBOL(HvLpConfig_getLpIndex_outline);
+
+HvLpIndex HvLpConfig_getLpIndex(void)
+{
+	return itLpNaca.xLpIndex;
+}
+EXPORT_SYMBOL(HvLpConfig_getLpIndex);
+
+HvLpIndex HvLpConfig_getPrimaryLpIndex(void)
+{
+	return itLpNaca.xPrimaryLpIndex;
+}
+EXPORT_SYMBOL_GPL(HvLpConfig_getPrimaryLpIndex);
diff --git a/arch/powerpc/platforms/iseries/setup.c b/arch/powerpc/platforms/iseries/setup.c
index c9605d773a77..c34299b18d8b 100644
--- a/arch/powerpc/platforms/iseries/setup.c
+++ b/arch/powerpc/platforms/iseries/setup.c
@@ -48,6 +48,7 @@
 #include <asm/iseries/hv_call_event.h>
 #include <asm/iseries/hv_call_xm.h>
 #include <asm/iseries/it_lp_queue.h>
+#include <asm/iseries/it_lp_naca.h>
 #include <asm/iseries/mf.h>
 #include <asm/iseries/hv_lp_event.h>
 #include <asm/iseries/lpar_map.h>
diff --git a/include/asm-powerpc/iseries/hv_lp_config.h b/include/asm-powerpc/iseries/hv_lp_config.h
index df8b20739719..a006fd1e4a2c 100644
--- a/include/asm-powerpc/iseries/hv_lp_config.h
+++ b/include/asm-powerpc/iseries/hv_lp_config.h
@@ -25,7 +25,6 @@
 
 #include <asm/iseries/hv_call_sc.h>
 #include <asm/iseries/hv_types.h>
-#include <asm/iseries/it_lp_naca.h>
 
 enum {
 	HvCallCfg_Cur	= 0,
@@ -44,16 +43,8 @@ enum {
 #define HvCallCfgGetHostingLpIndex			HvCallCfg + 32
 
 extern HvLpIndex HvLpConfig_getLpIndex_outline(void);
-
-static inline HvLpIndex	HvLpConfig_getLpIndex(void)
-{
-	return itLpNaca.xLpIndex;
-}
-
-static inline HvLpIndex	HvLpConfig_getPrimaryLpIndex(void)
-{
-	return itLpNaca.xPrimaryLpIndex;
-}
+extern HvLpIndex HvLpConfig_getLpIndex(void);
+extern HvLpIndex HvLpConfig_getPrimaryLpIndex(void);
 
 static inline u64 HvLpConfig_getMsChunks(void)
 {
-- 
cgit v1.2.3


From 06a36db1d712242a00cb30aaebdd088b4be28082 Mon Sep 17 00:00:00 2001
From: Michael Ellerman <michael@ellerman.id.au>
Date: Thu, 13 Jul 2006 17:52:17 +1000
Subject: [POWERPC] iseries: Move ItLpNaca into platforms/iseries

Move ItLpNaca into platforms/iseries now that it's not used elsewhere.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
---
 arch/powerpc/kernel/setup_64.c              |  1 -
 arch/powerpc/platforms/iseries/hvlpconfig.c |  2 +-
 arch/powerpc/platforms/iseries/it_lp_naca.h | 80 +++++++++++++++++++++++++++++
 arch/powerpc/platforms/iseries/lpardata.c   |  3 +-
 arch/powerpc/platforms/iseries/lpevents.c   |  2 +-
 arch/powerpc/platforms/iseries/setup.c      |  2 +-
 include/asm-powerpc/iseries/it_lp_naca.h    | 80 -----------------------------
 7 files changed, 84 insertions(+), 86 deletions(-)
 create mode 100644 arch/powerpc/platforms/iseries/it_lp_naca.h
 delete mode 100644 include/asm-powerpc/iseries/it_lp_naca.h

(limited to 'include')

diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c
index fd1785e4c9bb..e2447aef3a8f 100644
--- a/arch/powerpc/kernel/setup_64.c
+++ b/arch/powerpc/kernel/setup_64.c
@@ -56,7 +56,6 @@
 #include <asm/page.h>
 #include <asm/mmu.h>
 #include <asm/lmb.h>
-#include <asm/iseries/it_lp_naca.h>
 #include <asm/firmware.h>
 #include <asm/xmon.h>
 #include <asm/udbg.h>
diff --git a/arch/powerpc/platforms/iseries/hvlpconfig.c b/arch/powerpc/platforms/iseries/hvlpconfig.c
index cfcedaae6ea2..f0475f0b1853 100644
--- a/arch/powerpc/platforms/iseries/hvlpconfig.c
+++ b/arch/powerpc/platforms/iseries/hvlpconfig.c
@@ -18,7 +18,7 @@
 
 #include <linux/module.h>
 #include <asm/iseries/hv_lp_config.h>
-#include <asm/iseries/it_lp_naca.h>
+#include "it_lp_naca.h"
 
 HvLpIndex HvLpConfig_getLpIndex_outline(void)
 {
diff --git a/arch/powerpc/platforms/iseries/it_lp_naca.h b/arch/powerpc/platforms/iseries/it_lp_naca.h
new file mode 100644
index 000000000000..9bbf58986819
--- /dev/null
+++ b/arch/powerpc/platforms/iseries/it_lp_naca.h
@@ -0,0 +1,80 @@
+/*
+ * Copyright (C) 2001  Mike Corrigan IBM Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ */
+#ifndef _PLATFORMS_ISERIES_IT_LP_NACA_H
+#define _PLATFORMS_ISERIES_IT_LP_NACA_H
+
+#include <linux/types.h>
+
+/*
+ *	This control block contains the data that is shared between the
+ *	hypervisor (PLIC) and the OS.
+ */
+
+struct ItLpNaca {
+// CACHE_LINE_1 0x0000 - 0x007F Contains read-only data
+	u32	xDesc;			// Eye catcher			x00-x03
+	u16	xSize;			// Size of this class		x04-x05
+	u16	xIntHdlrOffset;		// Offset to IntHdlr array	x06-x07
+	u8	xMaxIntHdlrEntries;	// Number of entries in array	x08-x08
+	u8	xPrimaryLpIndex;	// LP Index of Primary		x09-x09
+	u8	xServiceLpIndex;	// LP Ind of Service Focal Pointx0A-x0A
+	u8	xLpIndex;		// LP Index			x0B-x0B
+	u16	xMaxLpQueues;		// Number of allocated queues	x0C-x0D
+	u16	xLpQueueOffset;		// Offset to start of LP queues	x0E-x0F
+	u8	xPirEnvironMode;	// Piranha or hardware		x10-x10
+	u8	xPirConsoleMode;	// Piranha console indicator	x11-x11
+	u8	xPirDasdMode;		// Piranha dasd indicator	x12-x12
+	u8	xRsvd1_0[5];		// Reserved for Piranha related	x13-x17
+	u8	flags;			// flags, see below		x18-x1F
+	u8	xSpVpdFormat;		// VPD areas are in CSP format	...
+	u8	xIntProcRatio;		// Ratio of int procs to procs	...
+	u8	xRsvd1_2[5];		// Reserved			...
+	u16	xRsvd1_3;		// Reserved			x20-x21
+	u16	xPlicVrmIndex;		// VRM index of PLIC		x22-x23
+	u16	xMinSupportedSlicVrmInd;// Min supported OS VRM index	x24-x25
+	u16	xMinCompatableSlicVrmInd;// Min compatible OS VRM index x26-x27
+	u64	xLoadAreaAddr;		// ER address of load area	x28-x2F
+	u32	xLoadAreaChunks;	// Chunks for the load area	x30-x33
+	u32	xPaseSysCallCRMask;	// Mask used to test CR before  x34-x37
+					// doing an ASR switch on PASE
+					// system call.
+	u64	xSlicSegmentTablePtr;	// Pointer to Slic seg table.   x38-x3f
+	u8	xRsvd1_4[64];		//				x40-x7F
+
+// CACHE_LINE_2 0x0080 - 0x00FF Contains local read-write data
+	u8	xRsvd2_0[128];		// Reserved			x00-x7F
+
+// CACHE_LINE_3-6 0x0100 - 0x02FF Contains LP Queue indicators
+// NB: Padding required to keep xInterrruptHdlr at x300 which is required
+// for v4r4 PLIC.
+	u8	xOldLpQueue[128];	// LP Queue needed for v4r4	100-17F
+	u8	xRsvd3_0[384];		// Reserved			180-2FF
+
+// CACHE_LINE_7-8 0x0300 - 0x03FF Contains the address of the OS interrupt
+//  handlers
+	u64	xInterruptHdlr[32];	// Interrupt handlers		300-x3FF
+};
+
+extern struct ItLpNaca		itLpNaca;
+
+#define ITLPNACA_LPAR		0x80	/* Is LPAR installed on the system */
+#define ITLPNACA_PARTITIONED	0x40	/* Is the system partitioned */
+#define ITLPNACA_HWSYNCEDTBS	0x20	/* Hardware synced TBs */
+#define ITLPNACA_HMTINT		0x10	/* Utilize MHT for interrupts */
+
+#endif /* _PLATFORMS_ISERIES_IT_LP_NACA_H */
diff --git a/arch/powerpc/platforms/iseries/lpardata.c b/arch/powerpc/platforms/iseries/lpardata.c
index 13e9bd132254..8162049bb04d 100644
--- a/arch/powerpc/platforms/iseries/lpardata.c
+++ b/arch/powerpc/platforms/iseries/lpardata.c
@@ -13,7 +13,6 @@
 #include <asm/processor.h>
 #include <asm/ptrace.h>
 #include <asm/abs_addr.h>
-#include <asm/iseries/it_lp_naca.h>
 #include <asm/lppaca.h>
 #include <asm/iseries/it_lp_reg_save.h>
 #include <asm/paca.h>
@@ -27,6 +26,7 @@
 #include "processor_vpd.h"
 #include "release_data.h"
 #include "it_exp_vpd_panel.h"
+#include "it_lp_naca.h"
 
 /* The HvReleaseData is the root of the information shared between
  * the hypervisor and Linux.
@@ -127,7 +127,6 @@ struct ItLpNaca itLpNaca = {
 		(u64)instruction_access_slb_iSeries /* 0x480 I-SLB */
 	}
 };
-EXPORT_SYMBOL(itLpNaca);
 
 /* May be filled in by the hypervisor so cannot end up in the BSS */
 struct ItIplParmsReal xItIplParmsReal __attribute__((__section__(".data")));
diff --git a/arch/powerpc/platforms/iseries/lpevents.c b/arch/powerpc/platforms/iseries/lpevents.c
index 2a9f81ea27d6..98c1c2440aad 100644
--- a/arch/powerpc/platforms/iseries/lpevents.c
+++ b/arch/powerpc/platforms/iseries/lpevents.c
@@ -20,7 +20,7 @@
 #include <asm/iseries/it_lp_queue.h>
 #include <asm/iseries/hv_lp_event.h>
 #include <asm/iseries/hv_call_event.h>
-#include <asm/iseries/it_lp_naca.h>
+#include "it_lp_naca.h"
 
 /*
  * The LpQueue is used to pass event data from the hypervisor to
diff --git a/arch/powerpc/platforms/iseries/setup.c b/arch/powerpc/platforms/iseries/setup.c
index c34299b18d8b..7f1953066ff8 100644
--- a/arch/powerpc/platforms/iseries/setup.c
+++ b/arch/powerpc/platforms/iseries/setup.c
@@ -48,7 +48,6 @@
 #include <asm/iseries/hv_call_event.h>
 #include <asm/iseries/hv_call_xm.h>
 #include <asm/iseries/it_lp_queue.h>
-#include <asm/iseries/it_lp_naca.h>
 #include <asm/iseries/mf.h>
 #include <asm/iseries/hv_lp_event.h>
 #include <asm/iseries/lpar_map.h>
@@ -60,6 +59,7 @@
 #include "irq.h"
 #include "vpd_areas.h"
 #include "processor_vpd.h"
+#include "it_lp_naca.h"
 #include "main_store.h"
 #include "call_sm.h"
 #include "call_hpt.h"
diff --git a/include/asm-powerpc/iseries/it_lp_naca.h b/include/asm-powerpc/iseries/it_lp_naca.h
deleted file mode 100644
index 4fdcf052927f..000000000000
--- a/include/asm-powerpc/iseries/it_lp_naca.h
+++ /dev/null
@@ -1,80 +0,0 @@
-/*
- * Copyright (C) 2001  Mike Corrigan IBM Corporation
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
- */
-#ifndef _ASM_POWERPC_ISERIES_IT_LP_NACA_H
-#define _ASM_POWERPC_ISERIES_IT_LP_NACA_H
-
-#include <linux/types.h>
-
-/*
- *	This control block contains the data that is shared between the
- *	hypervisor (PLIC) and the OS.
- */
-
-struct ItLpNaca {
-// CACHE_LINE_1 0x0000 - 0x007F Contains read-only data
-	u32	xDesc;			// Eye catcher			x00-x03
-	u16	xSize;			// Size of this class		x04-x05
-	u16	xIntHdlrOffset;		// Offset to IntHdlr array	x06-x07
-	u8	xMaxIntHdlrEntries;	// Number of entries in array	x08-x08
-	u8	xPrimaryLpIndex;	// LP Index of Primary		x09-x09
-	u8	xServiceLpIndex;	// LP Ind of Service Focal Pointx0A-x0A
-	u8	xLpIndex;		// LP Index			x0B-x0B
-	u16	xMaxLpQueues;		// Number of allocated queues	x0C-x0D
-	u16	xLpQueueOffset;		// Offset to start of LP queues	x0E-x0F
-	u8	xPirEnvironMode;	// Piranha or hardware		x10-x10
-	u8	xPirConsoleMode;	// Piranha console indicator	x11-x11
-	u8	xPirDasdMode;		// Piranha dasd indicator	x12-x12
-	u8	xRsvd1_0[5];		// Reserved for Piranha related	x13-x17
-	u8	flags;			// flags, see below		x18-x1F
-	u8	xSpVpdFormat;		// VPD areas are in CSP format	...
-	u8	xIntProcRatio;		// Ratio of int procs to procs	...
-	u8	xRsvd1_2[5];		// Reserved			...
-	u16	xRsvd1_3;		// Reserved			x20-x21
-	u16	xPlicVrmIndex;		// VRM index of PLIC		x22-x23
-	u16	xMinSupportedSlicVrmInd;// Min supported OS VRM index	x24-x25
-	u16	xMinCompatableSlicVrmInd;// Min compatible OS VRM index x26-x27
-	u64	xLoadAreaAddr;		// ER address of load area	x28-x2F
-	u32	xLoadAreaChunks;	// Chunks for the load area	x30-x33
-	u32	xPaseSysCallCRMask;	// Mask used to test CR before  x34-x37
-					// doing an ASR switch on PASE
-					// system call.
-	u64	xSlicSegmentTablePtr;	// Pointer to Slic seg table.   x38-x3f
-	u8	xRsvd1_4[64];		//				x40-x7F
-
-// CACHE_LINE_2 0x0080 - 0x00FF Contains local read-write data
-	u8	xRsvd2_0[128];		// Reserved			x00-x7F
-
-// CACHE_LINE_3-6 0x0100 - 0x02FF Contains LP Queue indicators
-// NB: Padding required to keep xInterrruptHdlr at x300 which is required
-// for v4r4 PLIC.
-	u8	xOldLpQueue[128];	// LP Queue needed for v4r4	100-17F
-	u8	xRsvd3_0[384];		// Reserved			180-2FF
-
-// CACHE_LINE_7-8 0x0300 - 0x03FF Contains the address of the OS interrupt
-//  handlers
-	u64	xInterruptHdlr[32];	// Interrupt handlers		300-x3FF
-};
-
-extern struct ItLpNaca		itLpNaca;
-
-#define ITLPNACA_LPAR		0x80	/* Is LPAR installed on the system */
-#define ITLPNACA_PARTITIONED	0x40	/* Is the system partitioned */
-#define ITLPNACA_HWSYNCEDTBS	0x20	/* Hardware synced TBs */
-#define ITLPNACA_HMTINT		0x10	/* Utilize MHT for interrupts */
-
-#endif /* _ASM_POWERPC_ISERIES_IT_LP_NACA_H */
-- 
cgit v1.2.3


From 8bff05b052db7a4cfaaf0eee7f8145600548e9c9 Mon Sep 17 00:00:00 2001
From: Stephen Rothwell <sfr@canb.auug.org.au>
Date: Thu, 13 Jul 2006 18:51:22 +1000
Subject: [POWERPC] iseries: A new iSeries console

This driver uses the hvc_console.c infrastructure that is used by the
pSeries virtual and RTAS consoles.  This will allow us to make viocons.c
obsolete and is another step along the way to a combined kernel (as
viocons could not coexist with CONFIG_VT).

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
---
 arch/powerpc/platforms/iseries/Kconfig |   8 +-
 arch/powerpc/platforms/iseries/dt.c    |   3 +-
 drivers/char/Kconfig                   |   7 +
 drivers/char/Makefile                  |   1 +
 drivers/char/hvc_iseries.c             | 593 +++++++++++++++++++++++++++++++++
 drivers/char/viocons.c                 |  31 +-
 include/asm-powerpc/iseries/vio.h      |  28 ++
 7 files changed, 638 insertions(+), 33 deletions(-)
 create mode 100644 drivers/char/hvc_iseries.c

(limited to 'include')

diff --git a/arch/powerpc/platforms/iseries/Kconfig b/arch/powerpc/platforms/iseries/Kconfig
index 3d957a30c8c2..887b68804e6d 100644
--- a/arch/powerpc/platforms/iseries/Kconfig
+++ b/arch/powerpc/platforms/iseries/Kconfig
@@ -3,13 +3,17 @@ menu "iSeries device drivers"
 	depends on PPC_ISERIES
 
 config VIOCONS
-	tristate "iSeries Virtual Console Support"
+	tristate "iSeries Virtual Console Support (Obsolete)"
+	help
+	  This is the old virtual console driver for legacy iSeries.
+	  You should use the iSeries Hypervisor Virtual Console
+	  support instead.
 
 config VIODASD
 	tristate "iSeries Virtual I/O disk support"
 	help
 	  If you are running on an iSeries system and you want to use
- 	  virtual disks created and managed by OS/400, say Y.
+	  virtual disks created and managed by OS/400, say Y.
 
 config VIOCD
 	tristate "iSeries Virtual I/O CD support"
diff --git a/arch/powerpc/platforms/iseries/dt.c b/arch/powerpc/platforms/iseries/dt.c
index d194140c1ebf..894b534669d0 100644
--- a/arch/powerpc/platforms/iseries/dt.c
+++ b/arch/powerpc/platforms/iseries/dt.c
@@ -298,7 +298,8 @@ static void __init dt_vdevices(struct iseries_flat_dt *dt)
 	dt_prop_u32(dt, "#address-cells", 1);
 	dt_prop_u32(dt, "#size-cells", 0);
 
-	dt_do_vdevice(dt, "vty", reg, -1, device_type_serial, NULL, 1);
+	dt_do_vdevice(dt, "vty", reg, -1, device_type_serial,
+			"IBM,iSeries-vty", 1);
 	reg++;
 
 	dt_do_vdevice(dt, "v-scsi", reg, -1, device_type_vscsi,
diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
index 11de59ff4229..a7ef542afbc2 100644
--- a/drivers/char/Kconfig
+++ b/drivers/char/Kconfig
@@ -610,6 +610,13 @@ config HVC_CONSOLE
 	  console. This driver allows each pSeries partition to have a console
 	  which is accessed via the HMC.
 
+config HVC_ISERIES
+	bool "iSeries Hypervisor Virtual Console support"
+	depends on PPC_ISERIES && !VIOCONS
+	select HVC_DRIVER
+	help
+	  iSeries machines support a hypervisor virtual console.
+
 config HVC_RTAS
 	bool "IBM RTAS Console support"
 	depends on PPC_RTAS
diff --git a/drivers/char/Makefile b/drivers/char/Makefile
index 7a7ee5721279..8c6dfc621520 100644
--- a/drivers/char/Makefile
+++ b/drivers/char/Makefile
@@ -42,6 +42,7 @@ obj-$(CONFIG_AMIGA_BUILTIN_SERIAL) += amiserial.o
 obj-$(CONFIG_SX)		+= sx.o generic_serial.o
 obj-$(CONFIG_RIO)		+= rio/ generic_serial.o
 obj-$(CONFIG_HVC_CONSOLE)	+= hvc_vio.o hvsi.o
+obj-$(CONFIG_HVC_ISERIES)	+= hvc_iseries.o
 obj-$(CONFIG_HVC_RTAS)		+= hvc_rtas.o
 obj-$(CONFIG_HVC_DRIVER)	+= hvc_console.o
 obj-$(CONFIG_RAW_DRIVER)	+= raw.o
diff --git a/drivers/char/hvc_iseries.c b/drivers/char/hvc_iseries.c
new file mode 100644
index 000000000000..256afc8e5838
--- /dev/null
+++ b/drivers/char/hvc_iseries.c
@@ -0,0 +1,593 @@
+/*
+ * iSeries vio driver interface to hvc_console.c
+ *
+ * This code is based heavily on hvc_vio.c and viocons.c
+ *
+ * Copyright (C) 2006 Stephen Rothwell, IBM Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ */
+#include <stdarg.h>
+#include <linux/types.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/spinlock.h>
+#include <linux/console.h>
+
+#include <asm/hvconsole.h>
+#include <asm/vio.h>
+#include <asm/prom.h>
+#include <asm/iseries/vio.h>
+#include <asm/iseries/hv_call.h>
+#include <asm/iseries/hv_lp_config.h>
+#include <asm/iseries/hv_lp_event.h>
+
+#include "hvc_console.h"
+
+#define VTTY_PORTS 10
+
+static DEFINE_SPINLOCK(consolelock);
+static DEFINE_SPINLOCK(consoleloglock);
+
+static const char hvc_driver_name[] = "hvc_console";
+
+#define IN_BUF_SIZE	200
+
+/*
+ * Our port information.
+ */
+static struct port_info {
+	HvLpIndex lp;
+	u64 seq;	/* sequence number of last HV send */
+	u64 ack;	/* last ack from HV */
+	struct hvc_struct *hp;
+	int in_start;
+	int in_end;
+	unsigned char in_buf[IN_BUF_SIZE];
+} port_info[VTTY_PORTS] = {
+	[ 0 ... VTTY_PORTS - 1 ] = {
+		.lp = HvLpIndexInvalid
+	}
+};
+
+#define viochar_is_console(pi)	((pi) == &port_info[0])
+
+static struct vio_device_id hvc_driver_table[] __devinitdata = {
+	{"serial", "IBM,iSeries-vty"},
+	{ "", "" }
+};
+MODULE_DEVICE_TABLE(vio, hvc_driver_table);
+
+static void hvlog(char *fmt, ...)
+{
+	int i;
+	unsigned long flags;
+	va_list args;
+	static char buf[256];
+
+	spin_lock_irqsave(&consoleloglock, flags);
+	va_start(args, fmt);
+	i = vscnprintf(buf, sizeof(buf) - 1, fmt, args);
+	va_end(args);
+	buf[i++] = '\r';
+	HvCall_writeLogBuffer(buf, i);
+	spin_unlock_irqrestore(&consoleloglock, flags);
+}
+
+/*
+ * Initialize the common fields in a charLpEvent
+ */
+static void init_data_event(struct viocharlpevent *viochar, HvLpIndex lp)
+{
+	struct HvLpEvent *hev = &viochar->event;
+
+	memset(viochar, 0, sizeof(struct viocharlpevent));
+
+	hev->flags = HV_LP_EVENT_VALID | HV_LP_EVENT_DEFERRED_ACK |
+		HV_LP_EVENT_INT;
+	hev->xType = HvLpEvent_Type_VirtualIo;
+	hev->xSubtype = viomajorsubtype_chario | viochardata;
+	hev->xSourceLp = HvLpConfig_getLpIndex();
+	hev->xTargetLp = lp;
+	hev->xSizeMinus1 = sizeof(struct viocharlpevent);
+	hev->xSourceInstanceId = viopath_sourceinst(lp);
+	hev->xTargetInstanceId = viopath_targetinst(lp);
+}
+
+static int get_chars(uint32_t vtermno, char *buf, int count)
+{
+	struct port_info *pi;
+	int n = 0;
+	unsigned long flags;
+
+	if (vtermno >= VTTY_PORTS)
+		return -EINVAL;
+	if (count == 0)
+		return 0;
+
+	pi = &port_info[vtermno];
+	spin_lock_irqsave(&consolelock, flags);
+
+	if (pi->in_end == 0)
+		goto done;
+
+	n = pi->in_end - pi->in_start;
+	if (n > count)
+		n = count;
+	memcpy(buf, &pi->in_buf[pi->in_start], n);
+	pi->in_start += n;
+	if (pi->in_start == pi->in_end) {
+		pi->in_start = 0;
+		pi->in_end = 0;
+	}
+done:
+	spin_unlock_irqrestore(&consolelock, flags);
+	return n;
+}
+
+static int put_chars(uint32_t vtermno, const char *buf, int count)
+{
+	struct viocharlpevent *viochar;
+	struct port_info *pi;
+	HvLpEvent_Rc hvrc;
+	unsigned long flags;
+	int sent = 0;
+
+	if (vtermno >= VTTY_PORTS)
+		return -EINVAL;
+
+	pi = &port_info[vtermno];
+
+	spin_lock_irqsave(&consolelock, flags);
+
+	if (viochar_is_console(pi) && !viopath_isactive(pi->lp)) {
+		spin_lock_irqsave(&consoleloglock, flags);
+		HvCall_writeLogBuffer(buf, count);
+		spin_unlock_irqrestore(&consoleloglock, flags);
+		sent = count;
+		goto done;
+	}
+
+	viochar = vio_get_event_buffer(viomajorsubtype_chario);
+	if (viochar == NULL) {
+		hvlog("\n\rviocons: Can't get viochar buffer.");
+		goto done;
+	}
+
+	while ((count > 0) && ((pi->seq - pi->ack) < VIOCHAR_WINDOW)) {
+		int len;
+
+		len = (count > VIOCHAR_MAX_DATA) ? VIOCHAR_MAX_DATA : count;
+
+		if (viochar_is_console(pi)) {
+			spin_lock_irqsave(&consoleloglock, flags);
+			HvCall_writeLogBuffer(buf, len);
+			spin_unlock_irqrestore(&consoleloglock, flags);
+		}
+
+		init_data_event(viochar, pi->lp);
+
+		viochar->len = len;
+		viochar->event.xCorrelationToken = pi->seq++;
+		viochar->event.xSizeMinus1 =
+			offsetof(struct viocharlpevent, data) + len;
+
+		memcpy(viochar->data, buf, len);
+
+		hvrc = HvCallEvent_signalLpEvent(&viochar->event);
+		if (hvrc)
+			hvlog("\n\rerror sending event! return code %d\n\r",
+				(int)hvrc);
+		sent += len;
+		count -= len;
+		buf += len;
+	}
+
+	vio_free_event_buffer(viomajorsubtype_chario, viochar);
+done:
+	spin_unlock_irqrestore(&consolelock, flags);
+	return sent;
+}
+
+static struct hv_ops hvc_get_put_ops = {
+	.get_chars = get_chars,
+	.put_chars = put_chars,
+};
+
+static int __devinit hvc_vio_probe(struct vio_dev *vdev,
+			const struct vio_device_id *id)
+{
+	struct hvc_struct *hp;
+	struct port_info *pi;
+
+	/* probed with invalid parameters. */
+	if (!vdev || !id)
+		return -EPERM;
+
+	if (vdev->unit_address >= VTTY_PORTS)
+		return -ENODEV;
+
+	pi = &port_info[vdev->unit_address];
+
+	hp = hvc_alloc(vdev->unit_address, vdev->irq, &hvc_get_put_ops);
+	if (IS_ERR(hp))
+		return PTR_ERR(hp);
+	pi->hp = hp;
+	dev_set_drvdata(&vdev->dev, pi);
+
+	return 0;
+}
+
+static int __devexit hvc_vio_remove(struct vio_dev *vdev)
+{
+	struct port_info *pi = dev_get_drvdata(&vdev->dev);
+	struct hvc_struct *hp = pi->hp;
+
+	return hvc_remove(hp);
+}
+
+static struct vio_driver hvc_vio_driver = {
+	.id_table	= hvc_driver_table,
+	.probe		= hvc_vio_probe,
+	.remove		= hvc_vio_remove,
+	.driver		= {
+		.name	= hvc_driver_name,
+		.owner	= THIS_MODULE,
+	}
+};
+
+static void hvc_open_event(struct HvLpEvent *event)
+{
+	unsigned long flags;
+	struct viocharlpevent *cevent = (struct viocharlpevent *)event;
+	u8 port = cevent->virtual_device;
+	struct port_info *pi;
+	int reject = 0;
+
+	if (hvlpevent_is_ack(event)) {
+		if (port >= VTTY_PORTS)
+			return;
+
+		spin_lock_irqsave(&consolelock, flags);
+
+		pi = &port_info[port];
+		if (event->xRc == HvLpEvent_Rc_Good) {
+			pi->seq = pi->ack = 0;
+			/*
+			 * This line allows connections from the primary
+			 * partition but once one is connected from the
+			 * primary partition nothing short of a reboot
+			 * of linux will allow access from the hosting
+			 * partition again without a required iSeries fix.
+			 */
+			pi->lp = event->xTargetLp;
+		}
+
+		spin_unlock_irqrestore(&consolelock, flags);
+		if (event->xRc != HvLpEvent_Rc_Good)
+			printk(KERN_WARNING
+			       "hvc: handle_open_event: event->xRc == (%d).\n",
+			       event->xRc);
+
+		if (event->xCorrelationToken != 0) {
+			atomic_t *aptr= (atomic_t *)event->xCorrelationToken;
+			atomic_set(aptr, 1);
+		} else
+			printk(KERN_WARNING
+			       "hvc: weird...got open ack without atomic\n");
+		return;
+	}
+
+	/* This had better require an ack, otherwise complain */
+	if (!hvlpevent_need_ack(event)) {
+		printk(KERN_WARNING "hvc: viocharopen without ack bit!\n");
+		return;
+	}
+
+	spin_lock_irqsave(&consolelock, flags);
+
+	/* Make sure this is a good virtual tty */
+	if (port >= VTTY_PORTS) {
+		event->xRc = HvLpEvent_Rc_SubtypeError;
+		cevent->subtype_result_code = viorc_openRejected;
+		/*
+		 * Flag state here since we can't printk while holding
+		 * the consolelock spinlock.
+		 */
+		reject = 1;
+	} else {
+		pi = &port_info[port];
+		if ((pi->lp != HvLpIndexInvalid) &&
+				(pi->lp != event->xSourceLp)) {
+			/*
+			 * If this is tty is already connected to a different
+			 * partition, fail.
+			 */
+			event->xRc = HvLpEvent_Rc_SubtypeError;
+			cevent->subtype_result_code = viorc_openRejected;
+			reject = 2;
+		} else {
+			pi->lp = event->xSourceLp;
+			event->xRc = HvLpEvent_Rc_Good;
+			cevent->subtype_result_code = viorc_good;
+			pi->seq = pi->ack = 0;
+		}
+	}
+
+	spin_unlock_irqrestore(&consolelock, flags);
+
+	if (reject == 1)
+		printk(KERN_WARNING "hvc: open rejected: bad virtual tty.\n");
+	else if (reject == 2)
+		printk(KERN_WARNING "hvc: open rejected: console in exclusive "
+				"use by another partition.\n");
+
+	/* Return the acknowledgement */
+	HvCallEvent_ackLpEvent(event);
+}
+
+/*
+ * Handle a close charLpEvent.  This should ONLY be an Interrupt because the
+ * virtual console should never actually issue a close event to the hypervisor
+ * because the virtual console never goes away.  A close event coming from the
+ * hypervisor simply means that there are no client consoles connected to the
+ * virtual console.
+ */
+static void hvc_close_event(struct HvLpEvent *event)
+{
+	unsigned long flags;
+	struct viocharlpevent *cevent = (struct viocharlpevent *)event;
+	u8 port = cevent->virtual_device;
+
+	if (!hvlpevent_is_int(event)) {
+		printk(KERN_WARNING
+			"hvc: got unexpected close acknowlegement\n");
+		return;
+	}
+
+	if (port >= VTTY_PORTS) {
+		printk(KERN_WARNING
+			"hvc: close message from invalid virtual device.\n");
+		return;
+	}
+
+	/* For closes, just mark the console partition invalid */
+	spin_lock_irqsave(&consolelock, flags);
+
+	if (port_info[port].lp == event->xSourceLp)
+		port_info[port].lp = HvLpIndexInvalid;
+
+	spin_unlock_irqrestore(&consolelock, flags);
+}
+
+static void hvc_data_event(struct HvLpEvent *event)
+{
+	unsigned long flags;
+	struct viocharlpevent *cevent = (struct viocharlpevent *)event;
+	struct port_info *pi;
+	int n;
+	u8 port = cevent->virtual_device;
+
+	if (port >= VTTY_PORTS) {
+		printk(KERN_WARNING "hvc: data on invalid virtual device %d\n",
+				port);
+		return;
+	}
+	if (cevent->len == 0)
+		return;
+
+	/*
+	 * Change 05/01/2003 - Ryan Arnold: If a partition other than
+	 * the current exclusive partition tries to send us data
+	 * events then just drop them on the floor because we don't
+	 * want his stinking data.  He isn't authorized to receive
+	 * data because he wasn't the first one to get the console,
+	 * therefore he shouldn't be allowed to send data either.
+	 * This will work without an iSeries fix.
+	 */
+	pi = &port_info[port];
+	if (pi->lp != event->xSourceLp)
+		return;
+
+	spin_lock_irqsave(&consolelock, flags);
+
+	n = IN_BUF_SIZE - pi->in_end;
+	if (n > cevent->len)
+		n = cevent->len;
+	if (n > 0) {
+		memcpy(&pi->in_buf[pi->in_end], cevent->data, n);
+		pi->in_end += n;
+	}
+	spin_unlock_irqrestore(&consolelock, flags);
+	if (n == 0)
+		printk(KERN_WARNING "hvc: input buffer overflow\n");
+}
+
+static void hvc_ack_event(struct HvLpEvent *event)
+{
+	struct viocharlpevent *cevent = (struct viocharlpevent *)event;
+	unsigned long flags;
+	u8 port = cevent->virtual_device;
+
+	if (port >= VTTY_PORTS) {
+		printk(KERN_WARNING "hvc: data on invalid virtual device\n");
+		return;
+	}
+
+	spin_lock_irqsave(&consolelock, flags);
+	port_info[port].ack = event->xCorrelationToken;
+	spin_unlock_irqrestore(&consolelock, flags);
+}
+
+static void hvc_config_event(struct HvLpEvent *event)
+{
+	struct viocharlpevent *cevent = (struct viocharlpevent *)event;
+
+	if (cevent->data[0] == 0x01)
+		printk(KERN_INFO "hvc: window resized to %d: %d: %d: %d\n",
+		       cevent->data[1], cevent->data[2],
+		       cevent->data[3], cevent->data[4]);
+	else
+		printk(KERN_WARNING "hvc: unknown config event\n");
+}
+
+static void hvc_handle_event(struct HvLpEvent *event)
+{
+	int charminor;
+
+	if (event == NULL)
+		return;
+
+	charminor = event->xSubtype & VIOMINOR_SUBTYPE_MASK;
+	switch (charminor) {
+	case viocharopen:
+		hvc_open_event(event);
+		break;
+	case viocharclose:
+		hvc_close_event(event);
+		break;
+	case viochardata:
+		hvc_data_event(event);
+		break;
+	case viocharack:
+		hvc_ack_event(event);
+		break;
+	case viocharconfig:
+		hvc_config_event(event);
+		break;
+	default:
+		if (hvlpevent_is_int(event) && hvlpevent_need_ack(event)) {
+			event->xRc = HvLpEvent_Rc_InvalidSubtype;
+			HvCallEvent_ackLpEvent(event);
+		}
+	}
+}
+
+static int send_open(HvLpIndex remoteLp, void *sem)
+{
+	return HvCallEvent_signalLpEventFast(remoteLp,
+			HvLpEvent_Type_VirtualIo,
+			viomajorsubtype_chario | viocharopen,
+			HvLpEvent_AckInd_DoAck, HvLpEvent_AckType_ImmediateAck,
+			viopath_sourceinst(remoteLp),
+			viopath_targetinst(remoteLp),
+			(u64)(unsigned long)sem, VIOVERSION << 16,
+			0, 0, 0, 0);
+}
+
+static int hvc_vio_init(void)
+{
+	atomic_t wait_flag;
+	int rc;
+
+	/* +2 for fudge */
+	rc = viopath_open(HvLpConfig_getPrimaryLpIndex(),
+			viomajorsubtype_chario, VIOCHAR_WINDOW + 2);
+	if (rc)
+		printk(KERN_WARNING "hvc: error opening to primary %d\n", rc);
+
+	if (viopath_hostLp == HvLpIndexInvalid)
+		vio_set_hostlp();
+
+	/*
+	 * And if the primary is not the same as the hosting LP, open to the
+	 * hosting lp
+	 */
+	if ((viopath_hostLp != HvLpIndexInvalid) &&
+	    (viopath_hostLp != HvLpConfig_getPrimaryLpIndex())) {
+		printk(KERN_INFO "hvc: open path to hosting (%d)\n",
+				viopath_hostLp);
+		rc = viopath_open(viopath_hostLp, viomajorsubtype_chario,
+				VIOCHAR_WINDOW + 2);	/* +2 for fudge */
+		if (rc)
+			printk(KERN_WARNING
+				"error opening to partition %d: %d\n",
+				viopath_hostLp, rc);
+	}
+
+	if (vio_setHandler(viomajorsubtype_chario, hvc_handle_event) < 0)
+		printk(KERN_WARNING
+			"hvc: error seting handler for console events!\n");
+
+	/*
+	 * First, try to open the console to the hosting lp.
+	 * Wait on a semaphore for the response.
+	 */
+	atomic_set(&wait_flag, 0);
+	if ((viopath_isactive(viopath_hostLp)) &&
+	    (send_open(viopath_hostLp, &wait_flag) == 0)) {
+		printk(KERN_INFO "hvc: hosting partition %d\n", viopath_hostLp);
+		while (atomic_read(&wait_flag) == 0)
+			mb();
+		atomic_set(&wait_flag, 0);
+	}
+
+	/*
+	 * If we don't have an active console, try the primary
+	 */
+	if ((!viopath_isactive(port_info[0].lp)) &&
+	    (viopath_isactive(HvLpConfig_getPrimaryLpIndex())) &&
+	    (send_open(HvLpConfig_getPrimaryLpIndex(), &wait_flag) == 0)) {
+		printk(KERN_INFO "hvc: opening console to primary partition\n");
+		while (atomic_read(&wait_flag) == 0)
+			mb();
+	}
+
+	/* Register as a vio device to receive callbacks */
+	rc = vio_register_driver(&hvc_vio_driver);
+
+	return rc;
+}
+module_init(hvc_vio_init); /* after drivers/char/hvc_console.c */
+
+static void hvc_vio_exit(void)
+{
+	vio_unregister_driver(&hvc_vio_driver);
+}
+module_exit(hvc_vio_exit);
+
+/* the device tree order defines our numbering */
+static int hvc_find_vtys(void)
+{
+	struct device_node *vty;
+	int num_found = 0;
+
+	for (vty = of_find_node_by_name(NULL, "vty"); vty != NULL;
+			vty = of_find_node_by_name(vty, "vty")) {
+		uint32_t *vtermno;
+
+		/* We have statically defined space for only a certain number
+		 * of console adapters.
+		 */
+		if ((num_found >= MAX_NR_HVC_CONSOLES) ||
+				(num_found >= VTTY_PORTS))
+			break;
+
+		vtermno = (uint32_t *)get_property(vty, "reg", NULL);
+		if (!vtermno)
+			continue;
+
+		if (!device_is_compatible(vty, "IBM,iSeries-vty"))
+			continue;
+
+		if (num_found == 0)
+			add_preferred_console("hvc", 0, NULL);
+		hvc_instantiate(*vtermno, num_found, &hvc_get_put_ops);
+		++num_found;
+	}
+
+	return num_found;
+}
+console_initcall(hvc_find_vtys);
diff --git a/drivers/char/viocons.c b/drivers/char/viocons.c
index 766f7864c6c6..f3efeaf2826e 100644
--- a/drivers/char/viocons.c
+++ b/drivers/char/viocons.c
@@ -43,7 +43,6 @@
 #include <linux/sysrq.h>
 
 #include <asm/iseries/vio.h>
-
 #include <asm/iseries/hv_lp_event.h>
 #include <asm/iseries/hv_call_event.h>
 #include <asm/iseries/hv_lp_config.h>
@@ -67,35 +66,6 @@ static int vio_sysrq_pressed;
 extern int sysrq_enabled;
 #endif
 
-/*
- * The structure of the events that flow between us and OS/400.  You can't
- * mess with this unless the OS/400 side changes too
- */
-struct viocharlpevent {
-	struct HvLpEvent event;
-	u32 reserved;
-	u16 version;
-	u16 subtype_result_code;
-	u8 virtual_device;
-	u8 len;
-	u8 data[VIOCHAR_MAX_DATA];
-};
-
-#define VIOCHAR_WINDOW		10
-#define VIOCHAR_HIGHWATERMARK	3
-
-enum viocharsubtype {
-	viocharopen = 0x0001,
-	viocharclose = 0x0002,
-	viochardata = 0x0003,
-	viocharack = 0x0004,
-	viocharconfig = 0x0005
-};
-
-enum viochar_rc {
-	viochar_rc_ebusy = 1
-};
-
 #define VIOCHAR_NUM_BUF		16
 
 /*
@@ -1183,6 +1153,7 @@ static int __init viocons_init(void)
 		port_info[i].magic = VIOTTY_MAGIC;
 	}
 	HvCall_setLogBufferFormatAndCodepage(HvCall_LogBuffer_ASCII, 437);
+	add_preferred_console("viocons", 0, NULL);
 	register_console(&viocons_early);
 	return 0;
 }
diff --git a/include/asm-powerpc/iseries/vio.h b/include/asm-powerpc/iseries/vio.h
index 72a97d37aac3..7a95d296abd1 100644
--- a/include/asm-powerpc/iseries/vio.h
+++ b/include/asm-powerpc/iseries/vio.h
@@ -122,6 +122,34 @@ enum viorc {
 	viorc_openRejected = 0x0301
 };
 
+/*
+ * The structure of the events that flow between us and OS/400 for chario
+ * events.  You can't mess with this unless the OS/400 side changes too.
+ */
+struct viocharlpevent {
+	struct HvLpEvent event;
+	u32 reserved;
+	u16 version;
+	u16 subtype_result_code;
+	u8 virtual_device;
+	u8 len;
+	u8 data[VIOCHAR_MAX_DATA];
+};
+
+#define VIOCHAR_WINDOW		10
+
+enum viocharsubtype {
+	viocharopen = 0x0001,
+	viocharclose = 0x0002,
+	viochardata = 0x0003,
+	viocharack = 0x0004,
+	viocharconfig = 0x0005
+};
+
+enum viochar_rc {
+	viochar_rc_ebusy = 1
+};
+
 struct device;
 
 extern struct device *iSeries_vio_dev;
-- 
cgit v1.2.3


From 54f5cd8afa1c9c9f8b152a946b0a7e0ecdef1631 Mon Sep 17 00:00:00 2001
From: Stephen Rothwell <sfr@canb.auug.org.au>
Date: Thu, 13 Jul 2006 18:56:56 +1000
Subject: [POWERPC] iseries: Remove unnecessary include of
 iseries/hv_lp_event.h

Also remove unnecessary reference to struct HvLpEvent.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
---
 arch/powerpc/kernel/asm-offsets.c         | 1 -
 include/asm-powerpc/iseries/it_lp_queue.h | 2 --
 2 files changed, 3 deletions(-)

(limited to 'include')

diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c
index 7ee84968087b..ac0631958b20 100644
--- a/arch/powerpc/kernel/asm-offsets.c
+++ b/arch/powerpc/kernel/asm-offsets.c
@@ -40,7 +40,6 @@
 #ifdef CONFIG_PPC64
 #include <asm/paca.h>
 #include <asm/lppaca.h>
-#include <asm/iseries/hv_lp_event.h>
 #include <asm/cache.h>
 #include <asm/compat.h>
 #endif
diff --git a/include/asm-powerpc/iseries/it_lp_queue.h b/include/asm-powerpc/iseries/it_lp_queue.h
index 284c5a7db3ac..3f6814769295 100644
--- a/include/asm-powerpc/iseries/it_lp_queue.h
+++ b/include/asm-powerpc/iseries/it_lp_queue.h
@@ -27,8 +27,6 @@
 #include <asm/types.h>
 #include <asm/ptrace.h>
 
-struct HvLpEvent;
-
 #define IT_LP_MAX_QUEUES	8
 
 #define IT_LP_NOT_USED		0	/* Queue will not be used by PLIC */
-- 
cgit v1.2.3


From ca652c9396fa052815518e2b2ce2ebee6d9fb861 Mon Sep 17 00:00:00 2001
From: Michael Ellerman <michael@ellerman.id.au>
Date: Fri, 14 Jul 2006 14:25:33 +1000
Subject: [POWERPC] iseries: Move iommu_table_cb into platforms/iseries

Although we pass the address of an iommu_table_cb to HvCallXm_getTceTableParms,
we don't actually need the structure definition anywhere except in the
iseries iommu code, so move the struct in there.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
---
 arch/powerpc/platforms/iseries/iommu.c   | 17 +++++++++++++++++
 include/asm-powerpc/iseries/hv_call_xm.h | 17 -----------------
 2 files changed, 17 insertions(+), 17 deletions(-)

(limited to 'include')

diff --git a/arch/powerpc/platforms/iseries/iommu.c b/arch/powerpc/platforms/iseries/iommu.c
index e3bd2015f2c9..2c3dbcd4613c 100644
--- a/arch/powerpc/platforms/iseries/iommu.c
+++ b/arch/powerpc/platforms/iseries/iommu.c
@@ -87,6 +87,23 @@ static void tce_free_iSeries(struct iommu_table *tbl, long index, long npages)
 	}
 }
 
+/*
+ * Structure passed to HvCallXm_getTceTableParms
+ */
+struct iommu_table_cb {
+	unsigned long	itc_busno;	/* Bus number for this tce table */
+	unsigned long	itc_start;	/* Will be NULL for secondary */
+	unsigned long	itc_totalsize;	/* Size (in pages) of whole table */
+	unsigned long	itc_offset;	/* Index into real tce table of the
+					   start of our section */
+	unsigned long	itc_size;	/* Size (in pages) of our section */
+	unsigned long	itc_index;	/* Index of this tce table */
+	unsigned short	itc_maxtables;	/* Max num of tables for partition */
+	unsigned char	itc_virtbus;	/* Flag to indicate virtual bus */
+	unsigned char	itc_slotno;	/* IOA Tce Slot Index */
+	unsigned char	itc_rsvd[4];
+};
+
 /*
  * Call Hv with the architected data structure to get TCE table info.
  * info. Put the returned data into the Linux representation of the
diff --git a/include/asm-powerpc/iseries/hv_call_xm.h b/include/asm-powerpc/iseries/hv_call_xm.h
index ca9202cb01ed..392ac3f54df0 100644
--- a/include/asm-powerpc/iseries/hv_call_xm.h
+++ b/include/asm-powerpc/iseries/hv_call_xm.h
@@ -16,23 +16,6 @@
 #define HvCallXmSetTce			HvCallXm + 11
 #define HvCallXmSetTces			HvCallXm + 13
 
-/*
- * Structure passed to HvCallXm_getTceTableParms
- */
-struct iommu_table_cb {
-	unsigned long	itc_busno;	/* Bus number for this tce table */
-	unsigned long	itc_start;	/* Will be NULL for secondary */
-	unsigned long	itc_totalsize;	/* Size (in pages) of whole table */
-	unsigned long	itc_offset;	/* Index into real tce table of the
-					   start of our section */
-	unsigned long	itc_size;	/* Size (in pages) of our section */
-	unsigned long	itc_index;	/* Index of this tce table */
-	unsigned short	itc_maxtables;	/* Max num of tables for partition */
-	unsigned char	itc_virtbus;	/* Flag to indicate virtual bus */
-	unsigned char	itc_slotno;	/* IOA Tce Slot Index */
-	unsigned char	itc_rsvd[4];
-};
-
 static inline void HvCallXm_getTceTableParms(u64 cb)
 {
 	HvCall1(HvCallXmGetTceTableParms, cb);
-- 
cgit v1.2.3


From a7f67bdf2c9f24509b8e81e0f35573b611987c80 Mon Sep 17 00:00:00 2001
From: Jeremy Kerr <jk@ozlabs.org>
Date: Wed, 12 Jul 2006 15:35:54 +1000
Subject: [POWERPC] Constify & voidify get_property()

Now that get_property() returns a void *, there's no need to cast its
return value. Also, treat the return value as const, so we can
constify get_property later.

powerpc core changes.

Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
---
 arch/powerpc/kernel/btext.c            | 24 ++++++------
 arch/powerpc/kernel/ibmebus.c          |  6 +--
 arch/powerpc/kernel/legacy_serial.c    | 35 ++++++++---------
 arch/powerpc/kernel/lparcfg.c          | 11 +++---
 arch/powerpc/kernel/machine_kexec_64.c | 10 ++---
 arch/powerpc/kernel/pci_32.c           | 39 ++++++++++---------
 arch/powerpc/kernel/pci_64.c           | 28 +++++++-------
 arch/powerpc/kernel/pci_dn.c           | 13 ++++---
 arch/powerpc/kernel/prom.c             | 23 ++++++------
 arch/powerpc/kernel/prom_parse.c       | 68 +++++++++++++++++-----------------
 arch/powerpc/kernel/rtas-proc.c        | 25 +++++++------
 arch/powerpc/kernel/rtas.c             | 28 +++++++-------
 arch/powerpc/kernel/rtas_pci.c         | 22 +++++------
 arch/powerpc/kernel/setup-common.c     | 19 ++++------
 arch/powerpc/kernel/setup_64.c         | 14 +++----
 arch/powerpc/kernel/sysfs.c            |  5 +--
 arch/powerpc/kernel/time.c             |  4 +-
 arch/powerpc/kernel/vio.c              | 16 ++++----
 arch/powerpc/mm/numa.c                 | 31 +++++++---------
 arch/powerpc/sysdev/fsl_soc.c          | 30 +++++++--------
 arch/powerpc/sysdev/mmio_nvram.c       |  4 +-
 include/asm-powerpc/ibmebus.h          |  2 +-
 include/asm-powerpc/prom.h             | 16 ++++----
 include/asm-powerpc/vio.h              |  4 +-
 24 files changed, 239 insertions(+), 238 deletions(-)

(limited to 'include')

diff --git a/arch/powerpc/kernel/btext.c b/arch/powerpc/kernel/btext.c
index f4e5e14ee2b6..995fcef156fd 100644
--- a/arch/powerpc/kernel/btext.c
+++ b/arch/powerpc/kernel/btext.c
@@ -158,35 +158,35 @@ int btext_initialize(struct device_node *np)
 {
 	unsigned int width, height, depth, pitch;
 	unsigned long address = 0;
-	u32 *prop;
+	const u32 *prop;
 
-	prop = (u32 *)get_property(np, "linux,bootx-width", NULL);
+	prop = get_property(np, "linux,bootx-width", NULL);
 	if (prop == NULL)
-		prop = (u32 *)get_property(np, "width", NULL);
+		prop = get_property(np, "width", NULL);
 	if (prop == NULL)
 		return -EINVAL;
 	width = *prop;
-	prop = (u32 *)get_property(np, "linux,bootx-height", NULL);
+	prop = get_property(np, "linux,bootx-height", NULL);
 	if (prop == NULL)
-		prop = (u32 *)get_property(np, "height", NULL);
+		prop = get_property(np, "height", NULL);
 	if (prop == NULL)
 		return -EINVAL;
 	height = *prop;
-	prop = (u32 *)get_property(np, "linux,bootx-depth", NULL);
+	prop = get_property(np, "linux,bootx-depth", NULL);
 	if (prop == NULL)
-		prop = (u32 *)get_property(np, "depth", NULL);
+		prop = get_property(np, "depth", NULL);
 	if (prop == NULL)
 		return -EINVAL;
 	depth = *prop;
 	pitch = width * ((depth + 7) / 8);
-	prop = (u32 *)get_property(np, "linux,bootx-linebytes", NULL);
+	prop = get_property(np, "linux,bootx-linebytes", NULL);
 	if (prop == NULL)
-		prop = (u32 *)get_property(np, "linebytes", NULL);
+		prop = get_property(np, "linebytes", NULL);
 	if (prop)
 		pitch = *prop;
 	if (pitch == 1)
 		pitch = 0x1000;
-	prop = (u32 *)get_property(np, "address", NULL);
+	prop = get_property(np, "address", NULL);
 	if (prop)
 		address = *prop;
 
@@ -214,11 +214,11 @@ int btext_initialize(struct device_node *np)
 
 int __init btext_find_display(int allow_nonstdout)
 {
-	char *name;
+	const char *name;
 	struct device_node *np = NULL; 
 	int rc = -ENODEV;
 
-	name = (char *)get_property(of_chosen, "linux,stdout-path", NULL);
+	name = get_property(of_chosen, "linux,stdout-path", NULL);
 	if (name != NULL) {
 		np = of_find_node_by_path(name);
 		if (np != NULL) {
diff --git a/arch/powerpc/kernel/ibmebus.c b/arch/powerpc/kernel/ibmebus.c
index 97ddc02a3d42..d9a0b087fa7f 100644
--- a/arch/powerpc/kernel/ibmebus.c
+++ b/arch/powerpc/kernel/ibmebus.c
@@ -167,7 +167,7 @@ static DEVICE_ATTR(name, S_IRUSR | S_IRGRP | S_IROTH, ibmebusdev_show_name,
 		   NULL);
 
 static struct ibmebus_dev* __devinit ibmebus_register_device_common(
-	struct ibmebus_dev *dev, char *name)
+	struct ibmebus_dev *dev, const char *name)
 {
 	int err = 0;
 
@@ -194,10 +194,10 @@ static struct ibmebus_dev* __devinit ibmebus_register_device_node(
 	struct device_node *dn)
 {
 	struct ibmebus_dev *dev;
-	char *loc_code;
+	const char *loc_code;
 	int length;
 
-	loc_code = (char *)get_property(dn, "ibm,loc-code", NULL);
+	loc_code = get_property(dn, "ibm,loc-code", NULL);
 	if (!loc_code) {
                 printk(KERN_WARNING "%s: node %s missing 'ibm,loc-code'\n",
 		       __FUNCTION__, dn->name ? dn->name : "<unknown>");
diff --git a/arch/powerpc/kernel/legacy_serial.c b/arch/powerpc/kernel/legacy_serial.c
index 359ab89748e0..ee1e0b8c7f1f 100644
--- a/arch/powerpc/kernel/legacy_serial.c
+++ b/arch/powerpc/kernel/legacy_serial.c
@@ -39,16 +39,17 @@ static int __init add_legacy_port(struct device_node *np, int want_index,
 				  phys_addr_t taddr, unsigned long irq,
 				  upf_t flags, int irq_check_parent)
 {
-	u32 *clk, *spd, clock = BASE_BAUD * 16;
+	const u32 *clk, *spd;
+	u32 clock = BASE_BAUD * 16;
 	int index;
 
 	/* get clock freq. if present */
-	clk = (u32 *)get_property(np, "clock-frequency", NULL);
+	clk = get_property(np, "clock-frequency", NULL);
 	if (clk && *clk)
 		clock = *clk;
 
 	/* get default speed if present */
-	spd = (u32 *)get_property(np, "current-speed", NULL);
+	spd = get_property(np, "current-speed", NULL);
 
 	/* If we have a location index, then try to use it */
 	if (want_index >= 0 && want_index < MAX_LEGACY_SERIAL_PORTS)
@@ -113,7 +114,7 @@ static int __init add_legacy_soc_port(struct device_node *np,
 				      struct device_node *soc_dev)
 {
 	u64 addr;
-	u32 *addrp;
+	const u32 *addrp;
 	upf_t flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_SHARE_IRQ;
 
 	/* We only support ports that have a clock frequency properly
@@ -140,15 +141,15 @@ static int __init add_legacy_soc_port(struct device_node *np,
 static int __init add_legacy_isa_port(struct device_node *np,
 				      struct device_node *isa_brg)
 {
-	u32 *reg;
-	char *typep;
+	const u32 *reg;
+	const char *typep;
 	int index = -1;
 	u64 taddr;
 
 	DBG(" -> add_legacy_isa_port(%s)\n", np->full_name);
 
 	/* Get the ISA port number */
-	reg = (u32 *)get_property(np, "reg", NULL);
+	reg = get_property(np, "reg", NULL);
 	if (reg == NULL)
 		return -1;
 
@@ -159,7 +160,7 @@ static int __init add_legacy_isa_port(struct device_node *np,
 	/* Now look for an "ibm,aix-loc" property that gives us ordering
 	 * if any...
 	 */
-	typep = (char *)get_property(np, "ibm,aix-loc", NULL);
+	typep = get_property(np, "ibm,aix-loc", NULL);
 
 	/* If we have a location index, then use it */
 	if (typep && *typep == 'S')
@@ -184,7 +185,7 @@ static int __init add_legacy_pci_port(struct device_node *np,
 				      struct device_node *pci_dev)
 {
 	u64 addr, base;
-	u32 *addrp;
+	const u32 *addrp;
 	unsigned int flags;
 	int iotype, index = -1, lindex = 0;
 
@@ -223,7 +224,7 @@ static int __init add_legacy_pci_port(struct device_node *np,
 	 * we get to their "reg" property
 	 */
 	if (np != pci_dev) {
-		u32 *reg = (u32 *)get_property(np, "reg", NULL);
+		const u32 *reg = get_property(np, "reg", NULL);
 		if (reg && (*reg < 4))
 			index = lindex = *reg;
 	}
@@ -281,13 +282,13 @@ static void __init setup_legacy_serial_console(int console)
 void __init find_legacy_serial_ports(void)
 {
 	struct device_node *np, *stdout = NULL;
-	char *path;
+	const char *path;
 	int index;
 
 	DBG(" -> find_legacy_serial_port()\n");
 
 	/* Now find out if one of these is out firmware console */
-	path = (char *)get_property(of_chosen, "linux,stdout-path", NULL);
+	path = get_property(of_chosen, "linux,stdout-path", NULL);
 	if (path != NULL) {
 		stdout = of_find_node_by_path(path);
 		if (stdout)
@@ -487,8 +488,8 @@ static int __init check_legacy_serial_console(void)
 {
 	struct device_node *prom_stdout = NULL;
 	int speed = 0, offset = 0;
-	char *name;
-	u32 *spd;
+	const char *name;
+	const u32 *spd;
 
 	DBG(" -> check_legacy_serial_console()\n");
 
@@ -509,7 +510,7 @@ static int __init check_legacy_serial_console(void)
 	}
 	/* We are getting a weird phandle from OF ... */
 	/* ... So use the full path instead */
-	name = (char *)get_property(of_chosen, "linux,stdout-path", NULL);
+	name = get_property(of_chosen, "linux,stdout-path", NULL);
 	if (name == NULL) {
 		DBG(" no linux,stdout-path !\n");
 		return -ENODEV;
@@ -521,12 +522,12 @@ static int __init check_legacy_serial_console(void)
 	}
 	DBG("stdout is %s\n", prom_stdout->full_name);
 
-	name = (char *)get_property(prom_stdout, "name", NULL);
+	name = get_property(prom_stdout, "name", NULL);
 	if (!name) {
 		DBG(" stdout package has no name !\n");
 		goto not_found;
 	}
-	spd = (u32 *)get_property(prom_stdout, "current-speed", NULL);
+	spd = get_property(prom_stdout, "current-speed", NULL);
 	if (spd)
 		speed = *spd;
 
diff --git a/arch/powerpc/kernel/lparcfg.c b/arch/powerpc/kernel/lparcfg.c
index 2d94b372d49b..3ce3a2d56fa8 100644
--- a/arch/powerpc/kernel/lparcfg.c
+++ b/arch/powerpc/kernel/lparcfg.c
@@ -309,12 +309,11 @@ static int pseries_lparcfg_data(struct seq_file *m, void *v)
 	int partition_potential_processors;
 	int partition_active_processors;
 	struct device_node *rtas_node;
-	int *lrdrp = NULL;
+	const int *lrdrp = NULL;
 
 	rtas_node = find_path_device("/rtas");
 	if (rtas_node)
-		lrdrp = (int *)get_property(rtas_node, "ibm,lrdr-capacity",
-		                            NULL);
+		lrdrp = get_property(rtas_node, "ibm,lrdr-capacity", NULL);
 
 	if (lrdrp == NULL) {
 		partition_potential_processors = vdso_data->processorCount;
@@ -519,7 +518,8 @@ static int lparcfg_data(struct seq_file *m, void *v)
 	const char *model = "";
 	const char *system_id = "";
 	const char *tmp;
-	unsigned int *lp_index_ptr, lp_index = 0;
+	const unsigned int *lp_index_ptr;
+	unsigned int lp_index = 0;
 
 	seq_printf(m, "%s %s \n", MODULE_NAME, MODULE_VERS);
 
@@ -539,8 +539,7 @@ static int lparcfg_data(struct seq_file *m, void *v)
 			if (firmware_has_feature(FW_FEATURE_ISERIES))
 				system_id += 4;
 		}
-		lp_index_ptr = (unsigned int *)
-			get_property(rootdn, "ibm,partition-no", NULL);
+		lp_index_ptr = get_property(rootdn, "ibm,partition-no", NULL);
 		if (lp_index_ptr)
 			lp_index = *lp_index_ptr;
 	}
diff --git a/arch/powerpc/kernel/machine_kexec_64.c b/arch/powerpc/kernel/machine_kexec_64.c
index b438d45a068c..4efdaa9d3f43 100644
--- a/arch/powerpc/kernel/machine_kexec_64.c
+++ b/arch/powerpc/kernel/machine_kexec_64.c
@@ -33,8 +33,8 @@ int default_machine_kexec_prepare(struct kimage *image)
 	unsigned long begin, end;	/* limits of segment */
 	unsigned long low, high;	/* limits of blocked memory range */
 	struct device_node *node;
-	unsigned long *basep;
-	unsigned int *sizep;
+	const unsigned long *basep;
+	const unsigned int *sizep;
 
 	if (!ppc_md.hpte_clear_all)
 		return -ENOENT;
@@ -74,10 +74,8 @@ int default_machine_kexec_prepare(struct kimage *image)
 	/* We also should not overwrite the tce tables */
 	for (node = of_find_node_by_type(NULL, "pci"); node != NULL;
 			node = of_find_node_by_type(node, "pci")) {
-		basep = (unsigned long *)get_property(node, "linux,tce-base",
-							NULL);
-		sizep = (unsigned int *)get_property(node, "linux,tce-size",
-							NULL);
+		basep = get_property(node, "linux,tce-base", NULL);
+		sizep = get_property(node, "linux,tce-size", NULL);
 		if (basep == NULL || sizep == NULL)
 			continue;
 
diff --git a/arch/powerpc/kernel/pci_32.c b/arch/powerpc/kernel/pci_32.c
index 898dae8ab6d9..3f6bd36e9e14 100644
--- a/arch/powerpc/kernel/pci_32.c
+++ b/arch/powerpc/kernel/pci_32.c
@@ -633,12 +633,12 @@ pcibios_alloc_controller(void)
 static void
 make_one_node_map(struct device_node* node, u8 pci_bus)
 {
-	int *bus_range;
+	const int *bus_range;
 	int len;
 
 	if (pci_bus >= pci_bus_count)
 		return;
-	bus_range = (int *) get_property(node, "bus-range", &len);
+	bus_range = get_property(node, "bus-range", &len);
 	if (bus_range == NULL || len < 2 * sizeof(int)) {
 		printk(KERN_WARNING "Can't get bus-range for %s, "
 		       "assuming it starts at 0\n", node->full_name);
@@ -648,13 +648,13 @@ make_one_node_map(struct device_node* node, u8 pci_bus)
 
 	for (node=node->child; node != 0;node = node->sibling) {
 		struct pci_dev* dev;
-		unsigned int *class_code, *reg;
+		const unsigned int *class_code, *reg;
 	
-		class_code = (unsigned int *) get_property(node, "class-code", NULL);
+		class_code = get_property(node, "class-code", NULL);
 		if (!class_code || ((*class_code >> 8) != PCI_CLASS_BRIDGE_PCI &&
 			(*class_code >> 8) != PCI_CLASS_BRIDGE_CARDBUS))
 			continue;
-		reg = (unsigned int *)get_property(node, "reg", NULL);
+		reg = get_property(node, "reg", NULL);
 		if (!reg)
 			continue;
 		dev = pci_find_slot(pci_bus, ((reg[0] >> 8) & 0xff));
@@ -669,7 +669,7 @@ pcibios_make_OF_bus_map(void)
 {
 	int i;
 	struct pci_controller* hose;
-	u8* of_prop_map;
+	struct property *map_prop;
 
 	pci_to_OF_bus_map = (u8*)kmalloc(pci_bus_count, GFP_KERNEL);
 	if (!pci_to_OF_bus_map) {
@@ -691,9 +691,12 @@ pcibios_make_OF_bus_map(void)
 			continue;
 		make_one_node_map(node, hose->first_busno);
 	}
-	of_prop_map = get_property(find_path_device("/"), "pci-OF-bus-map", NULL);
-	if (of_prop_map)
-		memcpy(of_prop_map, pci_to_OF_bus_map, pci_bus_count);
+	map_prop = of_find_property(find_path_device("/"),
+			"pci-OF-bus-map", NULL);
+	if (map_prop) {
+		BUG_ON(pci_bus_count > map_prop->length);
+		memcpy(map_prop->value, pci_to_OF_bus_map, pci_bus_count);
+	}
 #ifdef DEBUG
 	printk("PCI->OF bus map:\n");
 	for (i=0; i<pci_bus_count; i++) {
@@ -712,7 +715,7 @@ scan_OF_pci_childs(struct device_node* node, pci_OF_scan_iterator filter, void*
 	struct device_node* sub_node;
 
 	for (; node != 0;node = node->sibling) {
-		unsigned int *class_code;
+		const unsigned int *class_code;
 	
 		if (filter(node, data))
 			return node;
@@ -722,7 +725,7 @@ scan_OF_pci_childs(struct device_node* node, pci_OF_scan_iterator filter, void*
 		 * a fake root for all functions of a multi-function device,
 		 * we go down them as well.
 		 */
-		class_code = (unsigned int *) get_property(node, "class-code", NULL);
+		class_code = get_property(node, "class-code", NULL);
 		if ((!class_code || ((*class_code >> 8) != PCI_CLASS_BRIDGE_PCI &&
 			(*class_code >> 8) != PCI_CLASS_BRIDGE_CARDBUS)) &&
 			strcmp(node->name, "multifunc-device"))
@@ -737,10 +740,10 @@ scan_OF_pci_childs(struct device_node* node, pci_OF_scan_iterator filter, void*
 static int
 scan_OF_pci_childs_iterator(struct device_node* node, void* data)
 {
-	unsigned int *reg;
+	const unsigned int *reg;
 	u8* fdata = (u8*)data;
 	
-	reg = (unsigned int *) get_property(node, "reg", NULL);
+	reg = get_property(node, "reg", NULL);
 	if (reg && ((reg[0] >> 8) & 0xff) == fdata[1]
 		&& ((reg[0] >> 16) & 0xff) == fdata[0])
 		return 1;
@@ -841,7 +844,7 @@ find_OF_pci_device_filter(struct device_node* node, void* data)
 int
 pci_device_from_OF_node(struct device_node* node, u8* bus, u8* devfn)
 {
-	unsigned int *reg;
+	const unsigned int *reg;
 	struct pci_controller* hose;
 	struct pci_dev* dev = NULL;
 	
@@ -854,7 +857,7 @@ pci_device_from_OF_node(struct device_node* node, u8* bus, u8* devfn)
 	if (!scan_OF_pci_childs(((struct device_node*)hose->arch_data)->child,
 			find_OF_pci_device_filter, (void *)node))
 		return -ENODEV;
-	reg = (unsigned int *) get_property(node, "reg", NULL);
+	reg = get_property(node, "reg", NULL);
 	if (!reg)
 		return -ENODEV;
 	*bus = (reg[0] >> 16) & 0xff;
@@ -885,8 +888,8 @@ pci_process_bridge_OF_ranges(struct pci_controller *hose,
 			   struct device_node *dev, int primary)
 {
 	static unsigned int static_lc_ranges[256] __initdata;
-	unsigned int *dt_ranges, *lc_ranges, *ranges, *prev;
-	unsigned int size;
+	const unsigned int *dt_ranges;
+	unsigned int *lc_ranges, *ranges, *prev, size;
 	int rlen = 0, orig_rlen;
 	int memno = 0;
 	struct resource *res;
@@ -897,7 +900,7 @@ pci_process_bridge_OF_ranges(struct pci_controller *hose,
 	 * that can have more than 3 ranges, fortunately using contiguous
 	 * addresses -- BenH
 	 */
-	dt_ranges = (unsigned int *) get_property(dev, "ranges", &rlen);
+	dt_ranges = get_property(dev, "ranges", &rlen);
 	if (!dt_ranges)
 		return;
 	/* Sanity check, though hopefully that never happens */
diff --git a/arch/powerpc/kernel/pci_64.c b/arch/powerpc/kernel/pci_64.c
index 1d85fcba51e4..e795a7e2a38e 100644
--- a/arch/powerpc/kernel/pci_64.c
+++ b/arch/powerpc/kernel/pci_64.c
@@ -246,10 +246,10 @@ static void __init pcibios_claim_of_setup(void)
 #ifdef CONFIG_PPC_MULTIPLATFORM
 static u32 get_int_prop(struct device_node *np, const char *name, u32 def)
 {
-	u32 *prop;
+	const u32 *prop;
 	int len;
 
-	prop = (u32 *) get_property(np, name, &len);
+	prop = get_property(np, name, &len);
 	if (prop && len >= 4)
 		return *prop;
 	return def;
@@ -278,10 +278,11 @@ static void pci_parse_of_addrs(struct device_node *node, struct pci_dev *dev)
 	u64 base, size;
 	unsigned int flags;
 	struct resource *res;
-	u32 *addrs, i;
+	const u32 *addrs;
+	u32 i;
 	int proplen;
 
-	addrs = (u32 *) get_property(node, "assigned-addresses", &proplen);
+	addrs = get_property(node, "assigned-addresses", &proplen);
 	if (!addrs)
 		return;
 	DBG("    parse addresses (%d bytes) @ %p\n", proplen, addrs);
@@ -381,7 +382,7 @@ void __devinit of_scan_bus(struct device_node *node,
 				  struct pci_bus *bus)
 {
 	struct device_node *child = NULL;
-	u32 *reg;
+	const u32 *reg;
 	int reglen, devfn;
 	struct pci_dev *dev;
 
@@ -389,7 +390,7 @@ void __devinit of_scan_bus(struct device_node *node,
 
 	while ((child = of_get_next_child(node, child)) != NULL) {
 		DBG("  * %s\n", child->full_name);
-		reg = (u32 *) get_property(child, "reg", &reglen);
+		reg = get_property(child, "reg", &reglen);
 		if (reg == NULL || reglen < 20)
 			continue;
 		devfn = (reg[0] >> 8) & 0xff;
@@ -413,7 +414,7 @@ void __devinit of_scan_pci_bridge(struct device_node *node,
 			 	struct pci_dev *dev)
 {
 	struct pci_bus *bus;
-	u32 *busrange, *ranges;
+	const u32 *busrange, *ranges;
 	int len, i, mode;
 	struct resource *res;
 	unsigned int flags;
@@ -422,13 +423,13 @@ void __devinit of_scan_pci_bridge(struct device_node *node,
 	DBG("of_scan_pci_bridge(%s)\n", node->full_name);
 
 	/* parse bus-range property */
-	busrange = (u32 *) get_property(node, "bus-range", &len);
+	busrange = get_property(node, "bus-range", &len);
 	if (busrange == NULL || len != 8) {
 		printk(KERN_DEBUG "Can't get bus-range for PCI-PCI bridge %s\n",
 		       node->full_name);
 		return;
 	}
-	ranges = (u32 *) get_property(node, "ranges", &len);
+	ranges = get_property(node, "ranges", &len);
 	if (ranges == NULL) {
 		printk(KERN_DEBUG "Can't get ranges for PCI-PCI bridge %s\n",
 		       node->full_name);
@@ -892,13 +893,13 @@ static void __devinit pci_process_ISA_OF_ranges(struct device_node *isa_node,
 		unsigned int size;
 	};
 
-	struct isa_range *range;
+	const struct isa_range *range;
 	unsigned long pci_addr;
 	unsigned int isa_addr;
 	unsigned int size;
 	int rlen = 0;
 
-	range = (struct isa_range *) get_property(isa_node, "ranges", &rlen);
+	range = get_property(isa_node, "ranges", &rlen);
 	if (range == NULL || (rlen < sizeof(struct isa_range))) {
 		printk(KERN_ERR "no ISA ranges or unexpected isa range size,"
 		       "mapping 64k\n");
@@ -939,7 +940,8 @@ static void __devinit pci_process_ISA_OF_ranges(struct device_node *isa_node,
 void __devinit pci_process_bridge_OF_ranges(struct pci_controller *hose,
 					    struct device_node *dev, int prim)
 {
-	unsigned int *ranges, pci_space;
+	const unsigned int *ranges;
+	unsigned int pci_space;
 	unsigned long size;
 	int rlen = 0;
 	int memno = 0;
@@ -957,7 +959,7 @@ void __devinit pci_process_bridge_OF_ranges(struct pci_controller *hose,
 	 *			(size depending on dev->n_addr_cells)
 	 *   cells 4+5 or 5+6:	the size of the range
 	 */
-	ranges = (unsigned int *) get_property(dev, "ranges", &rlen);
+	ranges = get_property(dev, "ranges", &rlen);
 	if (ranges == NULL)
 		return;
 	hose->io_base_phys = 0;
diff --git a/arch/powerpc/kernel/pci_dn.c b/arch/powerpc/kernel/pci_dn.c
index 1c18953514c3..68df018dae0e 100644
--- a/arch/powerpc/kernel/pci_dn.c
+++ b/arch/powerpc/kernel/pci_dn.c
@@ -40,8 +40,8 @@
 static void * __devinit update_dn_pci_info(struct device_node *dn, void *data)
 {
 	struct pci_controller *phb = data;
-	int *type = (int *)get_property(dn, "ibm,pci-config-space-type", NULL);
-	u32 *regs;
+	const int *type = get_property(dn, "ibm,pci-config-space-type", NULL);
+	const u32 *regs;
 	struct pci_dn *pdn;
 
 	if (mem_init_done)
@@ -54,14 +54,14 @@ static void * __devinit update_dn_pci_info(struct device_node *dn, void *data)
 	dn->data = pdn;
 	pdn->node = dn;
 	pdn->phb = phb;
-	regs = (u32 *)get_property(dn, "reg", NULL);
+	regs = get_property(dn, "reg", NULL);
 	if (regs) {
 		/* First register entry is addr (00BBSS00)  */
 		pdn->busno = (regs[0] >> 16) & 0xff;
 		pdn->devfn = (regs[0] >> 8) & 0xff;
 	}
 	if (firmware_has_feature(FW_FEATURE_ISERIES)) {
-		u32 *busp = (u32 *)get_property(dn, "linux,subbus", NULL);
+		const u32 *busp = get_property(dn, "linux,subbus", NULL);
 		if (busp)
 			pdn->bussubno = *busp;
 	}
@@ -96,10 +96,11 @@ void *traverse_pci_devices(struct device_node *start, traverse_func pre,
 
 	/* We started with a phb, iterate all childs */
 	for (dn = start->child; dn; dn = nextdn) {
-		u32 *classp, class;
+		const u32 *classp;
+		u32 class;
 
 		nextdn = NULL;
-		classp = (u32 *)get_property(dn, "class-code", NULL);
+		classp = get_property(dn, "class-code", NULL);
 		class = classp ? *classp : 0;
 
 		if (pre && ((ret = pre(dn, data)) != NULL))
diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index a1787ffb6319..2a3d84a39cb5 100644
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -942,11 +942,11 @@ void __init early_init_devtree(void *params)
 int
 prom_n_addr_cells(struct device_node* np)
 {
-	int* ip;
+	const int *ip;
 	do {
 		if (np->parent)
 			np = np->parent;
-		ip = (int *) get_property(np, "#address-cells", NULL);
+		ip = get_property(np, "#address-cells", NULL);
 		if (ip != NULL)
 			return *ip;
 	} while (np->parent);
@@ -958,11 +958,11 @@ EXPORT_SYMBOL(prom_n_addr_cells);
 int
 prom_n_size_cells(struct device_node* np)
 {
-	int* ip;
+	const int* ip;
 	do {
 		if (np->parent)
 			np = np->parent;
-		ip = (int *) get_property(np, "#size-cells", NULL);
+		ip = get_property(np, "#size-cells", NULL);
 		if (ip != NULL)
 			return *ip;
 	} while (np->parent);
@@ -1034,7 +1034,7 @@ int device_is_compatible(struct device_node *device, const char *compat)
 	const char* cp;
 	int cplen, l;
 
-	cp = (char *) get_property(device, "compatible", &cplen);
+	cp = get_property(device, "compatible", &cplen);
 	if (cp == NULL)
 		return 0;
 	while (cplen > 0) {
@@ -1449,7 +1449,7 @@ static int of_finish_dynamic_node(struct device_node *node)
 {
 	struct device_node *parent = of_get_parent(node);
 	int err = 0;
-	phandle *ibm_phandle;
+	const phandle *ibm_phandle;
 
 	node->name = get_property(node, "name", NULL);
 	node->type = get_property(node, "device_type", NULL);
@@ -1466,8 +1466,7 @@ static int of_finish_dynamic_node(struct device_node *node)
 		return -ENODEV;
 
 	/* fix up new node's linux_phandle field */
-	if ((ibm_phandle = (unsigned int *)get_property(node,
-							"ibm,phandle", NULL)))
+	if ((ibm_phandle = get_property(node, "ibm,phandle", NULL)))
 		node->linux_phandle = *ibm_phandle;
 
 out:
@@ -1658,16 +1657,16 @@ struct device_node *of_get_cpu_node(int cpu, unsigned int *thread)
 	hardid = get_hard_smp_processor_id(cpu);
 
 	for_each_node_by_type(np, "cpu") {
-		u32 *intserv;
+		const u32 *intserv;
 		unsigned int plen, t;
 
 		/* Check for ibm,ppc-interrupt-server#s. If it doesn't exist
 		 * fallback to "reg" property and assume no threads
 		 */
-		intserv = (u32 *)get_property(np, "ibm,ppc-interrupt-server#s",
-					      &plen);
+		intserv = get_property(np, "ibm,ppc-interrupt-server#s",
+				&plen);
 		if (intserv == NULL) {
-			u32 *reg = (u32 *)get_property(np, "reg", NULL);
+			const u32 *reg = get_property(np, "reg", NULL);
 			if (reg == NULL)
 				continue;
 			if (*reg == hardid) {
diff --git a/arch/powerpc/kernel/prom_parse.c b/arch/powerpc/kernel/prom_parse.c
index e9960170667b..cdcd5d665468 100644
--- a/arch/powerpc/kernel/prom_parse.c
+++ b/arch/powerpc/kernel/prom_parse.c
@@ -270,7 +270,7 @@ static int of_translate_one(struct device_node *parent, struct of_bus *bus,
 			    struct of_bus *pbus, u32 *addr,
 			    int na, int ns, int pna)
 {
-	u32 *ranges;
+	const u32 *ranges;
 	unsigned int rlen;
 	int rone;
 	u64 offset = OF_BAD_ADDR;
@@ -287,7 +287,7 @@ static int of_translate_one(struct device_node *parent, struct of_bus *bus,
 	 * to translate addresses that aren't supposed to be translated in
 	 * the first place. --BenH.
 	 */
-	ranges = (u32 *)get_property(parent, "ranges", &rlen);
+	ranges = get_property(parent, "ranges", &rlen);
 	if (ranges == NULL || rlen == 0) {
 		offset = of_read_number(addr, na);
 		memset(addr, 0, pna * 4);
@@ -330,7 +330,7 @@ static int of_translate_one(struct device_node *parent, struct of_bus *bus,
  * that can be mapped to a cpu physical address). This is not really specified
  * that way, but this is traditionally the way IBM at least do things
  */
-u64 of_translate_address(struct device_node *dev, u32 *in_addr)
+u64 of_translate_address(struct device_node *dev, const u32 *in_addr)
 {
 	struct device_node *parent = NULL;
 	struct of_bus *bus, *pbus;
@@ -407,10 +407,10 @@ u64 of_translate_address(struct device_node *dev, u32 *in_addr)
 }
 EXPORT_SYMBOL(of_translate_address);
 
-u32 *of_get_address(struct device_node *dev, int index, u64 *size,
+const u32 *of_get_address(struct device_node *dev, int index, u64 *size,
 		    unsigned int *flags)
 {
-	u32 *prop;
+	const u32 *prop;
 	unsigned int psize;
 	struct device_node *parent;
 	struct of_bus *bus;
@@ -427,7 +427,7 @@ u32 *of_get_address(struct device_node *dev, int index, u64 *size,
 		return NULL;
 
 	/* Get "reg" or "assigned-addresses" property */
-	prop = (u32 *)get_property(dev, bus->addresses, &psize);
+	prop = get_property(dev, bus->addresses, &psize);
 	if (prop == NULL)
 		return NULL;
 	psize /= 4;
@@ -445,10 +445,10 @@ u32 *of_get_address(struct device_node *dev, int index, u64 *size,
 }
 EXPORT_SYMBOL(of_get_address);
 
-u32 *of_get_pci_address(struct device_node *dev, int bar_no, u64 *size,
+const u32 *of_get_pci_address(struct device_node *dev, int bar_no, u64 *size,
 			unsigned int *flags)
 {
-	u32 *prop;
+	const u32 *prop;
 	unsigned int psize;
 	struct device_node *parent;
 	struct of_bus *bus;
@@ -469,7 +469,7 @@ u32 *of_get_pci_address(struct device_node *dev, int bar_no, u64 *size,
 		return NULL;
 
 	/* Get "reg" or "assigned-addresses" property */
-	prop = (u32 *)get_property(dev, bus->addresses, &psize);
+	prop = get_property(dev, bus->addresses, &psize);
 	if (prop == NULL)
 		return NULL;
 	psize /= 4;
@@ -487,7 +487,7 @@ u32 *of_get_pci_address(struct device_node *dev, int bar_no, u64 *size,
 }
 EXPORT_SYMBOL(of_get_pci_address);
 
-static int __of_address_to_resource(struct device_node *dev, u32 *addrp,
+static int __of_address_to_resource(struct device_node *dev, const u32 *addrp,
 				    u64 size, unsigned int flags,
 				    struct resource *r)
 {
@@ -518,7 +518,7 @@ static int __of_address_to_resource(struct device_node *dev, u32 *addrp,
 int of_address_to_resource(struct device_node *dev, int index,
 			   struct resource *r)
 {
-	u32		*addrp;
+	const u32	*addrp;
 	u64		size;
 	unsigned int	flags;
 
@@ -532,7 +532,7 @@ EXPORT_SYMBOL_GPL(of_address_to_resource);
 int of_pci_address_to_resource(struct device_node *dev, int bar,
 			       struct resource *r)
 {
-	u32		*addrp;
+	const u32	*addrp;
 	u64		size;
 	unsigned int	flags;
 
@@ -543,13 +543,14 @@ int of_pci_address_to_resource(struct device_node *dev, int bar,
 }
 EXPORT_SYMBOL_GPL(of_pci_address_to_resource);
 
-void of_parse_dma_window(struct device_node *dn, unsigned char *dma_window_prop,
+void of_parse_dma_window(struct device_node *dn, const void *dma_window_prop,
 		unsigned long *busno, unsigned long *phys, unsigned long *size)
 {
-	u32 *dma_window, cells;
-	unsigned char *prop;
+	const u32 *dma_window;
+	u32 cells;
+	const unsigned char *prop;
 
-	dma_window = (u32 *)dma_window_prop;
+	dma_window = dma_window_prop;
 
 	/* busno is always one cell */
 	*busno = *(dma_window++);
@@ -578,13 +579,13 @@ static struct device_node *of_irq_dflt_pic;
 static struct device_node *of_irq_find_parent(struct device_node *child)
 {
 	struct device_node *p;
-	phandle *parp;
+	const phandle *parp;
 
 	if (!of_node_get(child))
 		return NULL;
 
 	do {
-		parp = (phandle *)get_property(child, "interrupt-parent", NULL);
+		parp = get_property(child, "interrupt-parent", NULL);
 		if (parp == NULL)
 			p = of_get_parent(child);
 		else {
@@ -646,11 +647,11 @@ void of_irq_map_init(unsigned int flags)
 
 }
 
-int of_irq_map_raw(struct device_node *parent, u32 *intspec, u32 *addr,
-		   struct of_irq *out_irq)
+int of_irq_map_raw(struct device_node *parent, const u32 *intspec,
+		const u32 *addr, struct of_irq *out_irq)
 {
 	struct device_node *ipar, *tnode, *old = NULL, *newpar = NULL;
-	u32 *tmp, *imap, *imask;
+	const u32 *tmp, *imap, *imask;
 	u32 intsize = 1, addrsize, newintsize = 0, newaddrsize = 0;
 	int imaplen, match, i;
 
@@ -661,7 +662,7 @@ int of_irq_map_raw(struct device_node *parent, u32 *intspec, u32 *addr,
 	 * is none, we are nice and just walk up the tree
 	 */
 	do {
-		tmp = (u32 *)get_property(ipar, "#interrupt-cells", NULL);
+		tmp = get_property(ipar, "#interrupt-cells", NULL);
 		if (tmp != NULL) {
 			intsize = *tmp;
 			break;
@@ -682,7 +683,7 @@ int of_irq_map_raw(struct device_node *parent, u32 *intspec, u32 *addr,
 	 */
 	old = of_node_get(ipar);
 	do {
-		tmp = (u32 *)get_property(old, "#address-cells", NULL);
+		tmp = get_property(old, "#address-cells", NULL);
 		tnode = of_get_parent(old);
 		of_node_put(old);
 		old = tnode;
@@ -709,7 +710,7 @@ int of_irq_map_raw(struct device_node *parent, u32 *intspec, u32 *addr,
 		}
 
 		/* Now look for an interrupt-map */
-		imap = (u32 *)get_property(ipar, "interrupt-map", &imaplen);
+		imap = get_property(ipar, "interrupt-map", &imaplen);
 		/* No interrupt map, check for an interrupt parent */
 		if (imap == NULL) {
 			DBG(" -> no map, getting parent\n");
@@ -719,7 +720,7 @@ int of_irq_map_raw(struct device_node *parent, u32 *intspec, u32 *addr,
 		imaplen /= sizeof(u32);
 
 		/* Look for a mask */
-		imask = (u32 *)get_property(ipar, "interrupt-map-mask", NULL);
+		imask = get_property(ipar, "interrupt-map-mask", NULL);
 
 		/* If we were passed no "reg" property and we attempt to parse
 		 * an interrupt-map, then #address-cells must be 0.
@@ -766,14 +767,14 @@ int of_irq_map_raw(struct device_node *parent, u32 *intspec, u32 *addr,
 			/* Get #interrupt-cells and #address-cells of new
 			 * parent
 			 */
-			tmp = (u32 *)get_property(newpar, "#interrupt-cells",
+			tmp = get_property(newpar, "#interrupt-cells",
 						  NULL);
 			if (tmp == NULL) {
 				DBG(" -> parent lacks #interrupt-cells !\n");
 				goto fail;
 			}
 			newintsize = *tmp;
-			tmp = (u32 *)get_property(newpar, "#address-cells",
+			tmp = get_property(newpar, "#address-cells",
 						  NULL);
 			newaddrsize = (tmp == NULL) ? 0 : *tmp;
 
@@ -819,14 +820,14 @@ EXPORT_SYMBOL_GPL(of_irq_map_raw);
 static int of_irq_map_oldworld(struct device_node *device, int index,
 			       struct of_irq *out_irq)
 {
-	u32 *ints;
+	const u32 *ints;
 	int intlen;
 
 	/*
 	 * Old machines just have a list of interrupt numbers
 	 * and no interrupt-controller nodes.
 	 */
-	ints = (u32 *) get_property(device, "AAPL,interrupts", &intlen);
+	ints = get_property(device, "AAPL,interrupts", &intlen);
 	if (ints == NULL)
 		return -EINVAL;
 	intlen /= sizeof(u32);
@@ -851,7 +852,8 @@ static int of_irq_map_oldworld(struct device_node *device, int index,
 int of_irq_map_one(struct device_node *device, int index, struct of_irq *out_irq)
 {
 	struct device_node *p;
-	u32 *intspec, *tmp, intsize, intlen, *addr;
+	const u32 *intspec, *tmp, *addr;
+	u32 intsize, intlen;
 	int res;
 
 	DBG("of_irq_map_one: dev=%s, index=%d\n", device->full_name, index);
@@ -861,13 +863,13 @@ int of_irq_map_one(struct device_node *device, int index, struct of_irq *out_irq
 		return of_irq_map_oldworld(device, index, out_irq);
 
 	/* Get the interrupts property */
-	intspec = (u32 *)get_property(device, "interrupts", &intlen);
+	intspec = get_property(device, "interrupts", &intlen);
 	if (intspec == NULL)
 		return -EINVAL;
 	intlen /= sizeof(u32);
 
 	/* Get the reg property (if any) */
-	addr = (u32 *)get_property(device, "reg", NULL);
+	addr = get_property(device, "reg", NULL);
 
 	/* Look for the interrupt parent. */
 	p = of_irq_find_parent(device);
@@ -875,7 +877,7 @@ int of_irq_map_one(struct device_node *device, int index, struct of_irq *out_irq
 		return -EINVAL;
 
 	/* Get size of interrupt specifier */
-	tmp = (u32 *)get_property(p, "#interrupt-cells", NULL);
+	tmp = get_property(p, "#interrupt-cells", NULL);
 	if (tmp == NULL) {
 		of_node_put(p);
 		return -EINVAL;
diff --git a/arch/powerpc/kernel/rtas-proc.c b/arch/powerpc/kernel/rtas-proc.c
index 9c9ad1fa9cce..2fe82abf1c52 100644
--- a/arch/powerpc/kernel/rtas-proc.c
+++ b/arch/powerpc/kernel/rtas-proc.c
@@ -246,12 +246,12 @@ struct file_operations ppc_rtas_rmo_buf_ops = {
 
 static int ppc_rtas_find_all_sensors(void);
 static void ppc_rtas_process_sensor(struct seq_file *m,
-	struct individual_sensor *s, int state, int error, char *loc);
+	struct individual_sensor *s, int state, int error, const char *loc);
 static char *ppc_rtas_process_error(int error);
 static void get_location_code(struct seq_file *m,
-	struct individual_sensor *s, char *loc);
-static void check_location_string(struct seq_file *m, char *c);
-static void check_location(struct seq_file *m, char *c);
+	struct individual_sensor *s, const char *loc);
+static void check_location_string(struct seq_file *m, const char *c);
+static void check_location(struct seq_file *m, const char *c);
 
 static int __init proc_rtas_init(void)
 {
@@ -446,11 +446,11 @@ static int ppc_rtas_sensors_show(struct seq_file *m, void *v)
 	for (i=0; i<sensors.quant; i++) {
 		struct individual_sensor *p = &sensors.sensor[i];
 		char rstr[64];
-		char *loc;
+		const char *loc;
 		int llen, offs;
 
 		sprintf (rstr, SENSOR_PREFIX"%04d", p->token);
-		loc = (char *) get_property(rtas_node, rstr, &llen);
+		loc = get_property(rtas_node, rstr, &llen);
 
 		/* A sensor may have multiple instances */
 		for (j = 0, offs = 0; j <= p->quant; j++) {
@@ -474,10 +474,10 @@ static int ppc_rtas_sensors_show(struct seq_file *m, void *v)
 
 static int ppc_rtas_find_all_sensors(void)
 {
-	unsigned int *utmp;
+	const unsigned int *utmp;
 	int len, i;
 
-	utmp = (unsigned int *) get_property(rtas_node, "rtas-sensors", &len);
+	utmp = get_property(rtas_node, "rtas-sensors", &len);
 	if (utmp == NULL) {
 		printk (KERN_ERR "error: could not get rtas-sensors\n");
 		return 1;
@@ -530,7 +530,7 @@ static char *ppc_rtas_process_error(int error)
  */
 
 static void ppc_rtas_process_sensor(struct seq_file *m,
-	struct individual_sensor *s, int state, int error, char *loc)
+	struct individual_sensor *s, int state, int error, const char *loc)
 {
 	/* Defined return vales */
 	const char * key_switch[]        = { "Off\t", "Normal\t", "Secure\t", 
@@ -682,7 +682,7 @@ static void ppc_rtas_process_sensor(struct seq_file *m,
 
 /* ****************************************************************** */
 
-static void check_location(struct seq_file *m, char *c)
+static void check_location(struct seq_file *m, const char *c)
 {
 	switch (c[0]) {
 		case LOC_PLANAR:
@@ -719,7 +719,7 @@ static void check_location(struct seq_file *m, char *c)
  * ${LETTER}${NUMBER}[[-/]${LETTER}${NUMBER} [ ... ] ]
  * the '.' may be an abbrevation
  */
-static void check_location_string(struct seq_file *m, char *c)
+static void check_location_string(struct seq_file *m, const char *c)
 {
 	while (*c) {
 		if (isalpha(*c) || *c == '.')
@@ -733,7 +733,8 @@ static void check_location_string(struct seq_file *m, char *c)
 
 /* ****************************************************************** */
 
-static void get_location_code(struct seq_file *m, struct individual_sensor *s, char *loc)
+static void get_location_code(struct seq_file *m, struct individual_sensor *s,
+		const char *loc)
 {
 	if (!loc || !*loc) {
 		seq_printf(m, "---");/* does not have a location */
diff --git a/arch/powerpc/kernel/rtas.c b/arch/powerpc/kernel/rtas.c
index 4a4cb5598402..10e10be324c9 100644
--- a/arch/powerpc/kernel/rtas.c
+++ b/arch/powerpc/kernel/rtas.c
@@ -177,10 +177,12 @@ void __init udbg_init_rtas_console(void)
 void rtas_progress(char *s, unsigned short hex)
 {
 	struct device_node *root;
-	int width, *p;
+	int width;
+	const int *p;
 	char *os;
 	static int display_character, set_indicator;
-	static int display_width, display_lines, *row_width, form_feed;
+	static int display_width, display_lines, form_feed;
+	const static int *row_width;
 	static DEFINE_SPINLOCK(progress_lock);
 	static int current_line;
 	static int pending_newline = 0;  /* did last write end with unprinted newline? */
@@ -191,16 +193,16 @@ void rtas_progress(char *s, unsigned short hex)
 	if (display_width == 0) {
 		display_width = 0x10;
 		if ((root = find_path_device("/rtas"))) {
-			if ((p = (unsigned int *)get_property(root,
+			if ((p = get_property(root,
 					"ibm,display-line-length", NULL)))
 				display_width = *p;
-			if ((p = (unsigned int *)get_property(root,
+			if ((p = get_property(root,
 					"ibm,form-feed", NULL)))
 				form_feed = *p;
-			if ((p = (unsigned int *)get_property(root,
+			if ((p = get_property(root,
 					"ibm,display-number-of-lines", NULL)))
 				display_lines = *p;
-			row_width = (unsigned int *)get_property(root,
+			row_width = get_property(root,
 					"ibm,display-truncation-length", NULL);
 		}
 		display_character = rtas_token("display-character");
@@ -293,10 +295,10 @@ EXPORT_SYMBOL(rtas_progress);		/* needed by rtas_flash module */
 
 int rtas_token(const char *service)
 {
-	int *tokp;
+	const int *tokp;
 	if (rtas.dev == NULL)
 		return RTAS_UNKNOWN_SERVICE;
-	tokp = (int *) get_property(rtas.dev, service, NULL);
+	tokp = get_property(rtas.dev, service, NULL);
 	return tokp ? *tokp : RTAS_UNKNOWN_SERVICE;
 }
 EXPORT_SYMBOL(rtas_token);
@@ -824,15 +826,15 @@ void __init rtas_initialize(void)
 	 */
 	rtas.dev = of_find_node_by_name(NULL, "rtas");
 	if (rtas.dev) {
-		u32 *basep, *entryp;
-		u32 *sizep;
+		const u32 *basep, *entryp, *sizep;
 
-		basep = (u32 *)get_property(rtas.dev, "linux,rtas-base", NULL);
-		sizep = (u32 *)get_property(rtas.dev, "rtas-size", NULL);
+		basep = get_property(rtas.dev, "linux,rtas-base", NULL);
+		sizep = get_property(rtas.dev, "rtas-size", NULL);
 		if (basep != NULL && sizep != NULL) {
 			rtas.base = *basep;
 			rtas.size = *sizep;
-			entryp = (u32 *)get_property(rtas.dev, "linux,rtas-entry", NULL);
+			entryp = get_property(rtas.dev,
+					"linux,rtas-entry", NULL);
 			if (entryp == NULL) /* Ugh */
 				rtas.entry = rtas.base;
 			else
diff --git a/arch/powerpc/kernel/rtas_pci.c b/arch/powerpc/kernel/rtas_pci.c
index cda022657324..5a798ac6aecf 100644
--- a/arch/powerpc/kernel/rtas_pci.c
+++ b/arch/powerpc/kernel/rtas_pci.c
@@ -57,7 +57,7 @@ static inline int config_access_valid(struct pci_dn *dn, int where)
 
 static int of_device_available(struct device_node * dn)
 {
-        char * status;
+        const char *status;
 
         status = get_property(dn, "status", NULL);
 
@@ -178,7 +178,7 @@ struct pci_ops rtas_pci_ops = {
 
 int is_python(struct device_node *dev)
 {
-	char *model = (char *)get_property(dev, "model", NULL);
+	const char *model = get_property(dev, "model", NULL);
 
 	if (model && strstr(model, "Python"))
 		return 1;
@@ -234,7 +234,7 @@ void __init init_pci_config_tokens (void)
 unsigned long __devinit get_phb_buid (struct device_node *phb)
 {
 	int addr_cells;
-	unsigned int *buid_vals;
+	const unsigned int *buid_vals;
 	unsigned int len;
 	unsigned long buid;
 
@@ -247,7 +247,7 @@ unsigned long __devinit get_phb_buid (struct device_node *phb)
 	if (phb->parent->parent)
 		return 0;
 
-	buid_vals = (unsigned int *) get_property(phb, "reg", &len);
+	buid_vals = get_property(phb, "reg", &len);
 	if (buid_vals == NULL)
 		return 0;
 
@@ -264,10 +264,10 @@ unsigned long __devinit get_phb_buid (struct device_node *phb)
 static int phb_set_bus_ranges(struct device_node *dev,
 			      struct pci_controller *phb)
 {
-	int *bus_range;
+	const int *bus_range;
 	unsigned int len;
 
-	bus_range = (int *) get_property(dev, "bus-range", &len);
+	bus_range = get_property(dev, "bus-range", &len);
 	if (bus_range == NULL || len < 2 * sizeof(int)) {
 		return 1;
  	}
@@ -325,15 +325,15 @@ unsigned long __init find_and_init_phbs(void)
 	 * in chosen.
 	 */
 	if (of_chosen) {
-		int *prop;
+		const int *prop;
 
-		prop = (int *)get_property(of_chosen, "linux,pci-probe-only",
-					   NULL);
+		prop = get_property(of_chosen,
+				"linux,pci-probe-only", NULL);
 		if (prop)
 			pci_probe_only = *prop;
 
-		prop = (int *)get_property(of_chosen,
-					   "linux,pci-assign-all-buses", NULL);
+		prop = get_property(of_chosen,
+				"linux,pci-assign-all-buses", NULL);
 		if (prop)
 			pci_assign_all_buses = *prop;
 	}
diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c
index c6d7b98af7d5..aaf1727b3570 100644
--- a/arch/powerpc/kernel/setup-common.c
+++ b/arch/powerpc/kernel/setup-common.c
@@ -304,16 +304,15 @@ struct seq_operations cpuinfo_op = {
 void __init check_for_initrd(void)
 {
 #ifdef CONFIG_BLK_DEV_INITRD
-	unsigned long *prop;
+	const unsigned long *prop;
 
 	DBG(" -> check_for_initrd()\n");
 
 	if (of_chosen) {
-		prop = (unsigned long *)get_property(of_chosen,
-				"linux,initrd-start", NULL);
+		prop = get_property(of_chosen, "linux,initrd-start", NULL);
 		if (prop != NULL) {
 			initrd_start = (unsigned long)__va(*prop);
-			prop = (unsigned long *)get_property(of_chosen,
+			prop = get_property(of_chosen,
 					"linux,initrd-end", NULL);
 			if (prop != NULL) {
 				initrd_end = (unsigned long)__va(*prop);
@@ -366,15 +365,14 @@ void __init smp_setup_cpu_maps(void)
 	int cpu = 0;
 
 	while ((dn = of_find_node_by_type(dn, "cpu")) && cpu < NR_CPUS) {
-		int *intserv;
+		const int *intserv;
 		int j, len = sizeof(u32), nthreads = 1;
 
-		intserv = (int *)get_property(dn, "ibm,ppc-interrupt-server#s",
-					      &len);
+		intserv = get_property(dn, "ibm,ppc-interrupt-server#s", &len);
 		if (intserv)
 			nthreads = len / sizeof(int);
 		else {
-			intserv = (int *) get_property(dn, "reg", NULL);
+			intserv = get_property(dn, "reg", NULL);
 			if (!intserv)
 				intserv = &cpu;	/* assume logical == phys */
 		}
@@ -395,13 +393,12 @@ void __init smp_setup_cpu_maps(void)
 	if (machine_is(pseries) && firmware_has_feature(FW_FEATURE_LPAR) &&
 	    (dn = of_find_node_by_path("/rtas"))) {
 		int num_addr_cell, num_size_cell, maxcpus;
-		unsigned int *ireg;
+		const unsigned int *ireg;
 
 		num_addr_cell = prom_n_addr_cells(dn);
 		num_size_cell = prom_n_size_cells(dn);
 
-		ireg = (unsigned int *)
-			get_property(dn, "ibm,lrdr-capacity", NULL);
+		ireg = get_property(dn, "ibm,lrdr-capacity", NULL);
 
 		if (!ireg)
 			goto out;
diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c
index e2447aef3a8f..77efe19ccd2c 100644
--- a/arch/powerpc/kernel/setup_64.c
+++ b/arch/powerpc/kernel/setup_64.c
@@ -106,7 +106,7 @@ static int smt_enabled_cmdline;
 static void check_smt_enabled(void)
 {
 	struct device_node *dn;
-	char *smt_option;
+	const char *smt_option;
 
 	/* Allow the command line to overrule the OF option */
 	if (smt_enabled_cmdline)
@@ -115,7 +115,7 @@ static void check_smt_enabled(void)
 	dn = of_find_node_by_path("/options");
 
 	if (dn) {
-		smt_option = (char *)get_property(dn, "ibm,smt-enabled", NULL);
+		smt_option = get_property(dn, "ibm,smt-enabled", NULL);
 
                 if (smt_option) {
 			if (!strcmp(smt_option, "on"))
@@ -292,7 +292,7 @@ static void __init initialize_cache_info(void)
 		 */
 
 		if ( num_cpus == 1 ) {
-			u32 *sizep, *lsizep;
+			const u32 *sizep, *lsizep;
 			u32 size, lsize;
 			const char *dc, *ic;
 
@@ -307,10 +307,10 @@ static void __init initialize_cache_info(void)
 
 			size = 0;
 			lsize = cur_cpu_spec->dcache_bsize;
-			sizep = (u32 *)get_property(np, "d-cache-size", NULL);
+			sizep = get_property(np, "d-cache-size", NULL);
 			if (sizep != NULL)
 				size = *sizep;
-			lsizep = (u32 *) get_property(np, dc, NULL);
+			lsizep = get_property(np, dc, NULL);
 			if (lsizep != NULL)
 				lsize = *lsizep;
 			if (sizep == 0 || lsizep == 0)
@@ -324,10 +324,10 @@ static void __init initialize_cache_info(void)
 
 			size = 0;
 			lsize = cur_cpu_spec->icache_bsize;
-			sizep = (u32 *)get_property(np, "i-cache-size", NULL);
+			sizep = get_property(np, "i-cache-size", NULL);
 			if (sizep != NULL)
 				size = *sizep;
-			lsizep = (u32 *)get_property(np, ic, NULL);
+			lsizep = get_property(np, ic, NULL);
 			if (lsizep != NULL)
 				lsize = *lsizep;
 			if (sizep == 0 || lsizep == 0)
diff --git a/arch/powerpc/kernel/sysfs.c b/arch/powerpc/kernel/sysfs.c
index 010435095550..1d724aef438a 100644
--- a/arch/powerpc/kernel/sysfs.c
+++ b/arch/powerpc/kernel/sysfs.c
@@ -60,7 +60,7 @@ static int smt_snooze_cmdline;
 static int __init smt_setup(void)
 {
 	struct device_node *options;
-	unsigned int *val;
+	const unsigned int *val;
 	unsigned int cpu;
 
 	if (!cpu_has_feature(CPU_FTR_SMT))
@@ -70,8 +70,7 @@ static int __init smt_setup(void)
 	if (!options)
 		return -ENODEV;
 
-	val = (unsigned int *)get_property(options, "ibm,smt-snooze-delay",
-					   NULL);
+	val = get_property(options, "ibm,smt-snooze-delay", NULL);
 	if (!smt_snooze_cmdline && val) {
 		for_each_possible_cpu(cpu)
 			per_cpu(smt_snooze_delay, cpu) = *val;
diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index 774c0a3c5019..8d4ccf061a4d 100644
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -859,14 +859,14 @@ EXPORT_SYMBOL(do_settimeofday);
 static int __init get_freq(char *name, int cells, unsigned long *val)
 {
 	struct device_node *cpu;
-	unsigned int *fp;
+	const unsigned int *fp;
 	int found = 0;
 
 	/* The cpu node should have timebase and clock frequency properties */
 	cpu = of_find_node_by_type(NULL, "cpu");
 
 	if (cpu) {
-		fp = (unsigned int *)get_property(cpu, name, NULL);
+		fp = get_property(cpu, name, NULL);
 		if (fp) {
 			found = 1;
 			*val = 0;
diff --git a/arch/powerpc/kernel/vio.c b/arch/powerpc/kernel/vio.c
index fad8580f9081..cb87e71eec66 100644
--- a/arch/powerpc/kernel/vio.c
+++ b/arch/powerpc/kernel/vio.c
@@ -77,7 +77,7 @@ static struct iommu_table *vio_build_iommu_table(struct vio_dev *dev)
 	} else
 #endif
 	{
-		unsigned char *dma_window;
+		const unsigned char *dma_window;
 		struct iommu_table *tbl;
 		unsigned long offset, size;
 
@@ -217,7 +217,7 @@ static void __devinit vio_dev_release(struct device *dev)
 struct vio_dev * __devinit vio_register_device_node(struct device_node *of_node)
 {
 	struct vio_dev *viodev;
-	unsigned int *unit_address;
+	const unsigned int *unit_address;
 
 	/* we need the 'device_type' property, in order to match with drivers */
 	if (of_node->type == NULL) {
@@ -227,7 +227,7 @@ struct vio_dev * __devinit vio_register_device_node(struct device_node *of_node)
 		return NULL;
 	}
 
-	unit_address = (unsigned int *)get_property(of_node, "reg", NULL);
+	unit_address = get_property(of_node, "reg", NULL);
 	if (unit_address == NULL) {
 		printk(KERN_WARNING "%s: node %s missing 'reg'\n",
 				__FUNCTION__,
@@ -249,7 +249,7 @@ struct vio_dev * __devinit vio_register_device_node(struct device_node *of_node)
 	viodev->type = of_node->type;
 	viodev->unit_address = *unit_address;
 	if (firmware_has_feature(FW_FEATURE_ISERIES)) {
-		unit_address = (unsigned int *)get_property(of_node,
+		unit_address = get_property(of_node,
 				"linux,unit_address", NULL);
 		if (unit_address != NULL)
 			viodev->unit_address = *unit_address;
@@ -423,7 +423,7 @@ static int vio_hotplug(struct device *dev, char **envp, int num_envp,
 {
 	const struct vio_dev *vio_dev = to_vio_dev(dev);
 	struct device_node *dn = dev->platform_data;
-	char *cp;
+	const char *cp;
 	int length;
 
 	if (!num_envp)
@@ -431,7 +431,7 @@ static int vio_hotplug(struct device *dev, char **envp, int num_envp,
 
 	if (!dn)
 		return -ENODEV;
-	cp = (char *)get_property(dn, "compatible", &length);
+	cp = get_property(dn, "compatible", &length);
 	if (!cp)
 		return -ENODEV;
 
@@ -493,11 +493,11 @@ static struct vio_dev *vio_find_name(const char *kobj_name)
  */
 struct vio_dev *vio_find_node(struct device_node *vnode)
 {
-	uint32_t *unit_address;
+	const uint32_t *unit_address;
 	char kobj_name[BUS_ID_SIZE];
 
 	/* construct the kobject name from the device node */
-	unit_address = (uint32_t *)get_property(vnode, "reg", NULL);
+	unit_address = get_property(vnode, "reg", NULL);
 	if (!unit_address)
 		return NULL;
 	snprintf(kobj_name, BUS_ID_SIZE, "%x", *unit_address);
diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c
index fbe23933f731..6c0f1c7d83e5 100644
--- a/arch/powerpc/mm/numa.c
+++ b/arch/powerpc/mm/numa.c
@@ -159,12 +159,12 @@ static struct device_node * __cpuinit find_cpu_node(unsigned int cpu)
 {
 	unsigned int hw_cpuid = get_hard_smp_processor_id(cpu);
 	struct device_node *cpu_node = NULL;
-	unsigned int *interrupt_server, *reg;
+	const unsigned int *interrupt_server, *reg;
 	int len;
 
 	while ((cpu_node = of_find_node_by_type(cpu_node, "cpu")) != NULL) {
 		/* Try interrupt server first */
-		interrupt_server = (unsigned int *)get_property(cpu_node,
+		interrupt_server = get_property(cpu_node,
 					"ibm,ppc-interrupt-server#s", &len);
 
 		len = len / sizeof(u32);
@@ -175,8 +175,7 @@ static struct device_node * __cpuinit find_cpu_node(unsigned int cpu)
 					return cpu_node;
 			}
 		} else {
-			reg = (unsigned int *)get_property(cpu_node,
-							   "reg", &len);
+			reg = get_property(cpu_node, "reg", &len);
 			if (reg && (len > 0) && (reg[0] == hw_cpuid))
 				return cpu_node;
 		}
@@ -186,9 +185,9 @@ static struct device_node * __cpuinit find_cpu_node(unsigned int cpu)
 }
 
 /* must hold reference to node during call */
-static int *of_get_associativity(struct device_node *dev)
+static const int *of_get_associativity(struct device_node *dev)
 {
-	return (unsigned int *)get_property(dev, "ibm,associativity", NULL);
+	return get_property(dev, "ibm,associativity", NULL);
 }
 
 /* Returns nid in the range [0..MAX_NUMNODES-1], or -1 if no useful numa
@@ -197,7 +196,7 @@ static int *of_get_associativity(struct device_node *dev)
 static int of_node_to_nid_single(struct device_node *device)
 {
 	int nid = -1;
-	unsigned int *tmp;
+	const unsigned int *tmp;
 
 	if (min_common_depth == -1)
 		goto out;
@@ -255,7 +254,7 @@ EXPORT_SYMBOL_GPL(of_node_to_nid);
 static int __init find_min_common_depth(void)
 {
 	int depth;
-	unsigned int *ref_points;
+	const unsigned int *ref_points;
 	struct device_node *rtas_root;
 	unsigned int len;
 
@@ -270,7 +269,7 @@ static int __init find_min_common_depth(void)
 	 * configuration (should be all 0's) and the second is for a normal
 	 * NUMA configuration.
 	 */
-	ref_points = (unsigned int *)get_property(rtas_root,
+	ref_points = get_property(rtas_root,
 			"ibm,associativity-reference-points", &len);
 
 	if ((len >= 1) && ref_points) {
@@ -297,7 +296,7 @@ static void __init get_n_mem_cells(int *n_addr_cells, int *n_size_cells)
 	of_node_put(memory);
 }
 
-static unsigned long __devinit read_n_cells(int n, unsigned int **buf)
+static unsigned long __devinit read_n_cells(int n, const unsigned int **buf)
 {
 	unsigned long result = 0;
 
@@ -435,15 +434,13 @@ static int __init parse_numa_properties(void)
 		unsigned long size;
 		int nid;
 		int ranges;
-		unsigned int *memcell_buf;
+		const unsigned int *memcell_buf;
 		unsigned int len;
 
-		memcell_buf = (unsigned int *)get_property(memory,
+		memcell_buf = get_property(memory,
 			"linux,usable-memory", &len);
 		if (!memcell_buf || len <= 0)
-			memcell_buf =
-				(unsigned int *)get_property(memory, "reg",
-					&len);
+			memcell_buf = get_property(memory, "reg", &len);
 		if (!memcell_buf || len <= 0)
 			continue;
 
@@ -787,10 +784,10 @@ int hot_add_scn_to_nid(unsigned long scn_addr)
 	while ((memory = of_find_node_by_type(memory, "memory")) != NULL) {
 		unsigned long start, size;
 		int ranges;
-		unsigned int *memcell_buf;
+		const unsigned int *memcell_buf;
 		unsigned int len;
 
-		memcell_buf = (unsigned int *)get_property(memory, "reg", &len);
+		memcell_buf = get_property(memory, "reg", &len);
 		if (!memcell_buf || len <= 0)
 			continue;
 
diff --git a/arch/powerpc/sysdev/fsl_soc.c b/arch/powerpc/sysdev/fsl_soc.c
index e983972132d8..07c47e8309ed 100644
--- a/arch/powerpc/sysdev/fsl_soc.c
+++ b/arch/powerpc/sysdev/fsl_soc.c
@@ -41,7 +41,7 @@ phys_addr_t get_immrbase(void)
 	soc = of_find_node_by_type(NULL, "soc");
 	if (soc) {
 		unsigned int size;
-		void *prop = get_property(soc, "reg", &size);
+		const void *prop = get_property(soc, "reg", &size);
 		immrbase = of_translate_address(soc, prop);
 		of_node_put(soc);
 	};
@@ -86,8 +86,8 @@ static int __init gfar_mdio_of_init(void)
 
 		while ((child = of_get_next_child(np, child)) != NULL) {
 			if (child->n_intrs) {
-				u32 *id =
-				    (u32 *) get_property(child, "reg", NULL);
+				const u32 *id =
+					get_property(child, "reg", NULL);
 				mdio_data.irq[*id] = child->intrs[0].line;
 			}
 		}
@@ -127,10 +127,10 @@ static int __init gfar_of_init(void)
 		struct resource r[4];
 		struct device_node *phy, *mdio;
 		struct gianfar_platform_data gfar_data;
-		unsigned int *id;
-		char *model;
-		void *mac_addr;
-		phandle *ph;
+		const unsigned int *id;
+		const char *model;
+		const void *mac_addr;
+		const phandle *ph;
 
 		memset(r, 0, sizeof(r));
 		memset(&gfar_data, 0, sizeof(gfar_data));
@@ -188,7 +188,7 @@ static int __init gfar_of_init(void)
 			    FSL_GIANFAR_DEV_HAS_VLAN |
 			    FSL_GIANFAR_DEV_HAS_EXTENDED_HASH;
 
-		ph = (phandle *) get_property(np, "phy-handle", NULL);
+		ph = get_property(np, "phy-handle", NULL);
 		phy = of_find_node_by_phandle(*ph);
 
 		if (phy == NULL) {
@@ -198,7 +198,7 @@ static int __init gfar_of_init(void)
 
 		mdio = of_get_parent(phy);
 
-		id = (u32 *) get_property(phy, "reg", NULL);
+		id = get_property(phy, "reg", NULL);
 		ret = of_address_to_resource(mdio, 0, &res);
 		if (ret) {
 			of_node_put(phy);
@@ -242,7 +242,7 @@ static int __init fsl_i2c_of_init(void)
 	     i++) {
 		struct resource r[2];
 		struct fsl_i2c_platform_data i2c_data;
-		unsigned char *flags = NULL;
+		const unsigned char *flags = NULL;
 
 		memset(&r, 0, sizeof(r));
 		memset(&i2c_data, 0, sizeof(i2c_data));
@@ -294,7 +294,7 @@ static int __init mpc83xx_wdt_init(void)
 	struct resource r;
 	struct device_node *soc, *np;
 	struct platform_device *dev;
-	unsigned int *freq;
+	const unsigned int *freq;
 	int ret;
 
 	np = of_find_compatible_node(NULL, "watchdog", "mpc83xx_wdt");
@@ -311,7 +311,7 @@ static int __init mpc83xx_wdt_init(void)
 		goto nosoc;
 	}
 
-	freq = (unsigned int *)get_property(soc, "bus-frequency", NULL);
+	freq = get_property(soc, "bus-frequency", NULL);
 	if (!freq) {
 		ret = -ENODEV;
 		goto err;
@@ -351,7 +351,7 @@ nodev:
 arch_initcall(mpc83xx_wdt_init);
 #endif
 
-static enum fsl_usb2_phy_modes determine_usb_phy(char * phy_type)
+static enum fsl_usb2_phy_modes determine_usb_phy(const char *phy_type)
 {
 	if (!phy_type)
 		return FSL_USB2_PHY_NONE;
@@ -379,7 +379,7 @@ static int __init fsl_usb_of_init(void)
 	     i++) {
 		struct resource r[2];
 		struct fsl_usb2_platform_data usb_data;
-		unsigned char *prop = NULL;
+		const unsigned char *prop = NULL;
 
 		memset(&r, 0, sizeof(r));
 		memset(&usb_data, 0, sizeof(usb_data));
@@ -428,7 +428,7 @@ static int __init fsl_usb_of_init(void)
 	     i++) {
 		struct resource r[2];
 		struct fsl_usb2_platform_data usb_data;
-		unsigned char *prop = NULL;
+		const unsigned char *prop = NULL;
 
 		memset(&r, 0, sizeof(r));
 		memset(&usb_data, 0, sizeof(usb_data));
diff --git a/arch/powerpc/sysdev/mmio_nvram.c b/arch/powerpc/sysdev/mmio_nvram.c
index 615350d46b52..ff23f5a4d4b9 100644
--- a/arch/powerpc/sysdev/mmio_nvram.c
+++ b/arch/powerpc/sysdev/mmio_nvram.c
@@ -80,7 +80,7 @@ static ssize_t mmio_nvram_get_size(void)
 int __init mmio_nvram_init(void)
 {
 	struct device_node *nvram_node;
-	unsigned long *buffer;
+	const unsigned long *buffer;
 	int proplen;
 	unsigned long nvram_addr;
 	int ret;
@@ -91,7 +91,7 @@ int __init mmio_nvram_init(void)
 		goto out;
 
 	ret = -EIO;
-	buffer = (unsigned long *)get_property(nvram_node, "reg", &proplen);
+	buffer = get_property(nvram_node, "reg", &proplen);
 	if (proplen != 2*sizeof(unsigned long))
 		goto out;
 
diff --git a/include/asm-powerpc/ibmebus.h b/include/asm-powerpc/ibmebus.h
index 7a42723d107c..7ab195a27888 100644
--- a/include/asm-powerpc/ibmebus.h
+++ b/include/asm-powerpc/ibmebus.h
@@ -48,7 +48,7 @@ extern struct dma_mapping_ops ibmebus_dma_ops;
 extern struct bus_type ibmebus_bus_type;
 
 struct ibmebus_dev {	
-	char *name;
+	const char *name;
 	struct of_device ofdev;
 };
 
diff --git a/include/asm-powerpc/prom.h b/include/asm-powerpc/prom.h
index 56f6ea0c76de..abdf1be66e97 100644
--- a/include/asm-powerpc/prom.h
+++ b/include/asm-powerpc/prom.h
@@ -72,8 +72,8 @@ struct property {
 };
 
 struct device_node {
-	char	*name;
-	char	*type;
+	const char *name;
+	const char *type;
 	phandle	node;
 	phandle linux_phandle;
 	char	*full_name;
@@ -209,15 +209,15 @@ static inline u64 of_read_number(const u32 *cell, int size)
 /* Translate an OF address block into a CPU physical address
  */
 #define OF_BAD_ADDR	((u64)-1)
-extern u64 of_translate_address(struct device_node *np, u32 *addr);
+extern u64 of_translate_address(struct device_node *np, const u32 *addr);
 
 /* Extract an address from a device, returns the region size and
  * the address space flags too. The PCI version uses a BAR number
  * instead of an absolute index
  */
-extern u32 *of_get_address(struct device_node *dev, int index,
+extern const u32 *of_get_address(struct device_node *dev, int index,
 			   u64 *size, unsigned int *flags);
-extern u32 *of_get_pci_address(struct device_node *dev, int bar_no,
+extern const u32 *of_get_pci_address(struct device_node *dev, int bar_no,
 			       u64 *size, unsigned int *flags);
 
 /* Get an address as a resource. Note that if your address is
@@ -234,7 +234,7 @@ extern int of_pci_address_to_resource(struct device_node *dev, int bar,
 /* Parse the ibm,dma-window property of an OF node into the busno, phys and
  * size parameters.
  */
-void of_parse_dma_window(struct device_node *dn, unsigned char *dma_window_prop,
+void of_parse_dma_window(struct device_node *dn, const void *dma_window_prop,
 		unsigned long *busno, unsigned long *phys, unsigned long *size);
 
 extern void kdump_move_device_tree(void);
@@ -288,8 +288,8 @@ extern void of_irq_map_init(unsigned int flags);
  *
  */
 
-extern int of_irq_map_raw(struct device_node *parent, u32 *intspec, u32 *addr,
-			  struct of_irq *out_irq);
+extern int of_irq_map_raw(struct device_node *parent, const u32 *intspec,
+			  const u32 *addr, struct of_irq *out_irq);
 
 
 /***
diff --git a/include/asm-powerpc/vio.h b/include/asm-powerpc/vio.h
index dc9bd101ca14..4b51d42e1419 100644
--- a/include/asm-powerpc/vio.h
+++ b/include/asm-powerpc/vio.h
@@ -46,8 +46,8 @@ struct iommu_table;
  */
 struct vio_dev {
 	struct iommu_table *iommu_table;     /* vio_map_* uses this */
-	char *name;
-	char *type;
+	const char *name;
+	const char *type;
 	uint32_t unit_address;
 	unsigned int irq;
 	struct device dev;
-- 
cgit v1.2.3


From c61c27d58af61e5b78257019b173732c29ce0c64 Mon Sep 17 00:00:00 2001
From: Jeremy Kerr <jk@ozlabs.org>
Date: Wed, 12 Jul 2006 15:39:54 +1000
Subject: [POWERPC] cell: Constify & voidify get_property()

Now that get_property() returns a void *, there's no need to cast its
return value. Also, treat the return value as const, so we can
constify get_property later.

cell platform changes.

Built for cell_defconfig

Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
---
 arch/powerpc/platforms/cell/cbe_regs.c   |  8 +++-----
 arch/powerpc/platforms/cell/interrupt.c  |  5 ++---
 arch/powerpc/platforms/cell/iommu.c      | 22 ++++++++++++----------
 arch/powerpc/platforms/cell/spider-pic.c | 10 +++++-----
 arch/powerpc/platforms/cell/spu_base.c   | 18 +++++++++---------
 include/asm-powerpc/spu.h                |  2 +-
 6 files changed, 32 insertions(+), 33 deletions(-)

(limited to 'include')

diff --git a/arch/powerpc/platforms/cell/cbe_regs.c b/arch/powerpc/platforms/cell/cbe_regs.c
index ce696c1cca75..3f3859d12e00 100644
--- a/arch/powerpc/platforms/cell/cbe_regs.c
+++ b/arch/powerpc/platforms/cell/cbe_regs.c
@@ -97,7 +97,7 @@ void __init cbe_regs_init(void)
 		struct cbe_regs_map *map = &cbe_regs_maps[cbe_regs_map_count++];
 
 		/* That hack must die die die ! */
-		struct address_prop {
+		const struct address_prop {
 			unsigned long address;
 			unsigned int len;
 		} __attribute__((packed)) *prop;
@@ -114,13 +114,11 @@ void __init cbe_regs_init(void)
 			if (cbe_thread_map[i].cpu_node == cpu)
 				cbe_thread_map[i].regs = map;
 
-		prop = (struct address_prop *)get_property(cpu, "pervasive",
-							   NULL);
+		prop = get_property(cpu, "pervasive", NULL);
 		if (prop != NULL)
 			map->pmd_regs = ioremap(prop->address, prop->len);
 
-		prop = (struct address_prop *)get_property(cpu, "iic",
-							   NULL);
+		prop = get_property(cpu, "iic", NULL);
 		if (prop != NULL)
 			map->iic_regs = ioremap(prop->address, prop->len);
 	}
diff --git a/arch/powerpc/platforms/cell/interrupt.c b/arch/powerpc/platforms/cell/interrupt.c
index 9d5da7896892..b26b496f6548 100644
--- a/arch/powerpc/platforms/cell/interrupt.c
+++ b/arch/powerpc/platforms/cell/interrupt.c
@@ -250,15 +250,14 @@ static int __init setup_iic(void)
 	struct resource r0, r1;
 	struct irq_host *host;
 	int found = 0;
- 	u32 *np;
+ 	const u32 *np;
 
 	for (dn = NULL;
 	     (dn = of_find_node_by_name(dn,"interrupt-controller")) != NULL;) {
 		if (!device_is_compatible(dn,
 				     "IBM,CBEA-Internal-Interrupt-Controller"))
 			continue;
- 		np = (u32 *)get_property(dn, "ibm,interrupt-server-ranges",
-					 NULL);
+		np = get_property(dn, "ibm,interrupt-server-ranges", NULL);
  		if (np == NULL) {
 			printk(KERN_WARNING "IIC: CPU association not found\n");
 			of_node_put(dn);
diff --git a/arch/powerpc/platforms/cell/iommu.c b/arch/powerpc/platforms/cell/iommu.c
index a35004e14c69..d2b20eba5b87 100644
--- a/arch/powerpc/platforms/cell/iommu.c
+++ b/arch/powerpc/platforms/cell/iommu.c
@@ -308,15 +308,16 @@ static void cell_do_map_iommu(struct cell_iommu *iommu,
 
 static void iommu_devnode_setup(struct device_node *d)
 {
-	unsigned int *ioid;
-	unsigned long *dma_window, map_start, map_size, token;
+	const unsigned int *ioid;
+	unsigned long map_start, map_size, token;
+	const unsigned long *dma_window;
 	struct cell_iommu *iommu;
 
-	ioid = (unsigned int *)get_property(d, "ioid", NULL);
+	ioid = get_property(d, "ioid", NULL);
 	if (!ioid)
 		pr_debug("No ioid entry found !\n");
 
-	dma_window = (unsigned long *)get_property(d, "ibm,dma-window", NULL);
+	dma_window = get_property(d, "ibm,dma-window", NULL);
 	if (!dma_window)
 		pr_debug("No ibm,dma-window entry found !\n");
 
@@ -371,8 +372,9 @@ static int cell_map_iommu_hardcoded(int num_nodes)
 
 static int cell_map_iommu(void)
 {
-	unsigned int num_nodes = 0, *node_id;
-	unsigned long *base, *mmio_base;
+	unsigned int num_nodes = 0;
+	const unsigned int *node_id;
+	const unsigned long *base, *mmio_base;
 	struct device_node *dn;
 	struct cell_iommu *iommu = NULL;
 
@@ -381,7 +383,7 @@ static int cell_map_iommu(void)
 	for(dn = of_find_node_by_type(NULL, "cpu");
 	    dn;
 	    dn = of_find_node_by_type(dn, "cpu")) {
-		node_id = (unsigned int *)get_property(dn, "node-id", NULL);
+		node_id = get_property(dn, "node-id", NULL);
 
 		if (num_nodes < *node_id)
 			num_nodes = *node_id;
@@ -396,9 +398,9 @@ static int cell_map_iommu(void)
 	    dn;
 	    dn = of_find_node_by_type(dn, "cpu")) {
 
-		node_id = (unsigned int *)get_property(dn, "node-id", NULL);
-		base = (unsigned long *)get_property(dn, "ioc-cache", NULL);
-		mmio_base = (unsigned long *)get_property(dn, "ioc-translation", NULL);
+		node_id = get_property(dn, "node-id", NULL);
+		base = get_property(dn, "ioc-cache", NULL);
+		mmio_base = get_property(dn, "ioc-translation", NULL);
 
 		if (!base || !mmio_base || !node_id)
 			return cell_map_iommu_hardcoded(num_nodes);
diff --git a/arch/powerpc/platforms/cell/spider-pic.c b/arch/powerpc/platforms/cell/spider-pic.c
index ae7ef88f1a37..ab4c252a4d9b 100644
--- a/arch/powerpc/platforms/cell/spider-pic.c
+++ b/arch/powerpc/platforms/cell/spider-pic.c
@@ -230,7 +230,7 @@ static void spider_irq_cascade(unsigned int irq, struct irq_desc *desc,
 static unsigned int __init spider_find_cascade_and_node(struct spider_pic *pic)
 {
 	unsigned int virq;
-	u32 *imap, *tmp;
+	const u32 *imap, *tmp;
 	int imaplen, intsize, unit;
 	struct device_node *iic;
 	struct irq_host *iic_host;
@@ -248,25 +248,25 @@ static unsigned int __init spider_find_cascade_and_node(struct spider_pic *pic)
 #endif
 
 	/* Now do the horrible hacks */
-	tmp = (u32 *)get_property(pic->of_node, "#interrupt-cells", NULL);
+	tmp = get_property(pic->of_node, "#interrupt-cells", NULL);
 	if (tmp == NULL)
 		return NO_IRQ;
 	intsize = *tmp;
-	imap = (u32 *)get_property(pic->of_node, "interrupt-map", &imaplen);
+	imap = get_property(pic->of_node, "interrupt-map", &imaplen);
 	if (imap == NULL || imaplen < (intsize + 1))
 		return NO_IRQ;
 	iic = of_find_node_by_phandle(imap[intsize]);
 	if (iic == NULL)
 		return NO_IRQ;
 	imap += intsize + 1;
-	tmp = (u32 *)get_property(iic, "#interrupt-cells", NULL);
+	tmp = get_property(iic, "#interrupt-cells", NULL);
 	if (tmp == NULL)
 		return NO_IRQ;
 	intsize = *tmp;
 	/* Assume unit is last entry of interrupt specifier */
 	unit = imap[intsize - 1];
 	/* Ok, we have a unit, now let's try to get the node */
-	tmp = (u32 *)get_property(iic, "ibm,interrupt-server-ranges", NULL);
+	tmp = get_property(iic, "ibm,interrupt-server-ranges", NULL);
 	if (tmp == NULL) {
 		of_node_put(iic);
 		return NO_IRQ;
diff --git a/arch/powerpc/platforms/cell/spu_base.c b/arch/powerpc/platforms/cell/spu_base.c
index 5d2313a6c82b..86d55675e1d2 100644
--- a/arch/powerpc/platforms/cell/spu_base.c
+++ b/arch/powerpc/platforms/cell/spu_base.c
@@ -488,10 +488,10 @@ int spu_irq_class_1_bottom(struct spu *spu)
 
 static int __init find_spu_node_id(struct device_node *spe)
 {
-	unsigned int *id;
+	const unsigned int *id;
 	struct device_node *cpu;
 	cpu = spe->parent->parent;
-	id = (unsigned int *)get_property(cpu, "node-id", NULL);
+	id = get_property(cpu, "node-id", NULL);
 	return id ? *id : 0;
 }
 
@@ -500,7 +500,7 @@ static int __init cell_spuprop_present(struct spu *spu, struct device_node *spe,
 {
 	static DEFINE_MUTEX(add_spumem_mutex);
 
-	struct address_prop {
+	const struct address_prop {
 		unsigned long address;
 		unsigned int len;
 	} __attribute__((packed)) *p;
@@ -511,7 +511,7 @@ static int __init cell_spuprop_present(struct spu *spu, struct device_node *spe,
 	struct zone *zone;
 	int ret;
 
-	p = (void*)get_property(spe, prop, &proplen);
+	p = get_property(spe, prop, &proplen);
 	WARN_ON(proplen != sizeof (*p));
 
 	start_pfn = p->address >> PAGE_SHIFT;
@@ -531,12 +531,12 @@ static int __init cell_spuprop_present(struct spu *spu, struct device_node *spe,
 static void __iomem * __init map_spe_prop(struct spu *spu,
 		struct device_node *n, const char *name)
 {
-	struct address_prop {
+	const struct address_prop {
 		unsigned long address;
 		unsigned int len;
 	} __attribute__((packed)) *prop;
 
-	void *p;
+	const void *p;
 	int proplen;
 	void* ret = NULL;
 	int err = 0;
@@ -570,14 +570,14 @@ static int __init spu_map_interrupts(struct spu *spu, struct device_node *np)
 {
 	struct irq_host *host;
 	unsigned int isrc;
-	u32 *tmp;
+	const u32 *tmp;
 
 	host = iic_get_irq_host(spu->node);
 	if (host == NULL)
 		return -ENODEV;
 
 	/* Get the interrupt source from the device-tree */
-	tmp = (u32 *)get_property(np, "isrc", NULL);
+	tmp = get_property(np, "isrc", NULL);
 	if (!tmp)
 		return -ENODEV;
 	spu->isrc = isrc = tmp[0];
@@ -593,7 +593,7 @@ static int __init spu_map_interrupts(struct spu *spu, struct device_node *np)
 
 static int __init spu_map_device(struct spu *spu, struct device_node *node)
 {
-	char *prop;
+	const char *prop;
 	int ret;
 
 	ret = -ENODEV;
diff --git a/include/asm-powerpc/spu.h b/include/asm-powerpc/spu.h
index c02d105d8294..b42b53c40f5d 100644
--- a/include/asm-powerpc/spu.h
+++ b/include/asm-powerpc/spu.h
@@ -106,7 +106,7 @@ struct spu_context;
 struct spu_runqueue;
 
 struct spu {
-	char *name;
+	const char *name;
 	unsigned long local_store_phys;
 	u8 *local_store;
 	unsigned long problem_phys;
-- 
cgit v1.2.3


From 018a3d1db7cdb6127656c1622ee1d2302e16436d Mon Sep 17 00:00:00 2001
From: Jeremy Kerr <jk@ozlabs.org>
Date: Wed, 12 Jul 2006 15:40:29 +1000
Subject: [POWERPC] powermac: Constify & voidify get_property()

Now that get_property() returns a void *, there's no need to cast its
return value. Also, treat the return value as const, so we can
constify get_property later.

powermac platform & macintosh driver changes.

Built for pmac32_defconfig, g5_defconfig

Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
---
 arch/powerpc/platforms/powermac/backlight.c  |  3 ++-
 arch/powerpc/platforms/powermac/cpufreq_32.c | 23 ++++++++---------
 arch/powerpc/platforms/powermac/cpufreq_64.c | 27 ++++++++++----------
 arch/powerpc/platforms/powermac/feature.c    | 30 +++++++++++-----------
 arch/powerpc/platforms/powermac/low_i2c.c    | 24 +++++++++---------
 arch/powerpc/platforms/powermac/pci.c        | 37 +++++++++++++++-------------
 arch/powerpc/platforms/powermac/pfunc_base.c |  2 +-
 arch/powerpc/platforms/powermac/pfunc_core.c |  5 ++--
 arch/powerpc/platforms/powermac/setup.c      | 18 ++++++--------
 arch/powerpc/platforms/powermac/smp.c        |  7 +++---
 arch/powerpc/platforms/powermac/udbg_scc.c   | 10 ++++----
 drivers/i2c/busses/i2c-powermac.c            |  3 ++-
 drivers/ide/ppc/pmac.c                       |  6 ++---
 drivers/macintosh/macio_asic.c               | 10 +++++---
 drivers/macintosh/macio_sysfs.c              |  8 +++---
 drivers/macintosh/smu.c                      | 19 +++++++-------
 drivers/macintosh/therm_adt746x.c            |  8 +++---
 drivers/macintosh/therm_pm72.c               | 14 +++++------
 drivers/macintosh/therm_windtunnel.c         |  4 +--
 drivers/macintosh/via-cuda.c                 |  4 +--
 drivers/macintosh/via-pmu-led.c              |  2 +-
 drivers/macintosh/via-pmu.c                  | 10 ++++----
 drivers/macintosh/windfarm_pm81.c            |  4 +--
 drivers/macintosh/windfarm_pm91.c            |  2 +-
 drivers/macintosh/windfarm_smu_controls.c    | 13 +++++-----
 drivers/macintosh/windfarm_smu_sat.c         |  8 +++---
 drivers/macintosh/windfarm_smu_sensors.c     | 12 ++++-----
 drivers/serial/pmac_zilog.c                  |  9 ++++---
 include/asm-powerpc/smu.h                    |  2 +-
 29 files changed, 166 insertions(+), 158 deletions(-)

(limited to 'include')

diff --git a/arch/powerpc/platforms/powermac/backlight.c b/arch/powerpc/platforms/powermac/backlight.c
index 69f65e215a5c..205b4a392862 100644
--- a/arch/powerpc/platforms/powermac/backlight.c
+++ b/arch/powerpc/platforms/powermac/backlight.c
@@ -38,7 +38,8 @@ int pmac_has_backlight_type(const char *type)
 	struct device_node* bk_node = find_devices("backlight");
 
 	if (bk_node) {
-		char *prop = get_property(bk_node, "backlight-control", NULL);
+		const char *prop = get_property(bk_node,
+				"backlight-control", NULL);
 		if (prop && strncmp(prop, type, strlen(type)) == 0)
 			return 1;
 	}
diff --git a/arch/powerpc/platforms/powermac/cpufreq_32.c b/arch/powerpc/platforms/powermac/cpufreq_32.c
index 62926248bdb8..c2b6b4134f68 100644
--- a/arch/powerpc/platforms/powermac/cpufreq_32.c
+++ b/arch/powerpc/platforms/powermac/cpufreq_32.c
@@ -421,7 +421,7 @@ static int pmac_cpufreq_cpu_init(struct cpufreq_policy *policy)
 
 static u32 read_gpio(struct device_node *np)
 {
-	u32 *reg = (u32 *)get_property(np, "reg", NULL);
+	const u32 *reg = get_property(np, "reg", NULL);
 	u32 offset;
 
 	if (reg == NULL)
@@ -497,7 +497,7 @@ static int pmac_cpufreq_init_MacRISC3(struct device_node *cpunode)
 								"frequency-gpio");
 	struct device_node *slew_done_gpio_np = of_find_node_by_name(NULL,
 								     "slewing-done");
-	u32 *value;
+	const u32 *value;
 
 	/*
 	 * Check to see if it's GPIO driven or PMU only
@@ -519,15 +519,15 @@ static int pmac_cpufreq_init_MacRISC3(struct device_node *cpunode)
 	 */
 	if (frequency_gpio && slew_done_gpio) {
 		int lenp, rc;
-		u32 *freqs, *ratio;
+		const u32 *freqs, *ratio;
 
-		freqs = (u32 *)get_property(cpunode, "bus-frequencies", &lenp);
+		freqs = get_property(cpunode, "bus-frequencies", &lenp);
 		lenp /= sizeof(u32);
 		if (freqs == NULL || lenp != 2) {
 			printk(KERN_ERR "cpufreq: bus-frequencies incorrect or missing\n");
 			return 1;
 		}
-		ratio = (u32 *)get_property(cpunode, "processor-to-bus-ratio*2", NULL);
+		ratio = get_property(cpunode, "processor-to-bus-ratio*2", NULL);
 		if (ratio == NULL) {
 			printk(KERN_ERR "cpufreq: processor-to-bus-ratio*2 missing\n");
 			return 1;
@@ -562,7 +562,7 @@ static int pmac_cpufreq_init_MacRISC3(struct device_node *cpunode)
 	/* If we use the PMU, look for the min & max frequencies in the
 	 * device-tree
 	 */
-	value = (u32 *)get_property(cpunode, "min-clock-frequency", NULL);
+	value = get_property(cpunode, "min-clock-frequency", NULL);
 	if (!value)
 		return 1;
 	low_freq = (*value) / 1000;
@@ -571,7 +571,7 @@ static int pmac_cpufreq_init_MacRISC3(struct device_node *cpunode)
 	if (low_freq < 100000)
 		low_freq *= 10;
 
-	value = (u32 *)get_property(cpunode, "max-clock-frequency", NULL);
+	value = get_property(cpunode, "max-clock-frequency", NULL);
 	if (!value)
 		return 1;
 	hi_freq = (*value) / 1000;
@@ -611,13 +611,14 @@ static int pmac_cpufreq_init_7447A(struct device_node *cpunode)
 static int pmac_cpufreq_init_750FX(struct device_node *cpunode)
 {
 	struct device_node *volt_gpio_np;
-	u32 pvr, *value;
+	u32 pvr;
+	const u32 *value;
 
 	if (get_property(cpunode, "dynamic-power-step", NULL) == NULL)
 		return 1;
 
 	hi_freq = cur_freq;
-	value = (u32 *)get_property(cpunode, "reduced-clock-frequency", NULL);
+	value = get_property(cpunode, "reduced-clock-frequency", NULL);
 	if (!value)
 		return 1;
 	low_freq = (*value) / 1000;
@@ -650,7 +651,7 @@ static int pmac_cpufreq_init_750FX(struct device_node *cpunode)
 static int __init pmac_cpufreq_setup(void)
 {
 	struct device_node	*cpunode;
-	u32			*value;
+	const u32		*value;
 
 	if (strstr(cmd_line, "nocpufreq"))
 		return 0;
@@ -661,7 +662,7 @@ static int __init pmac_cpufreq_setup(void)
 		goto out;
 
 	/* Get current cpu clock freq */
-	value = (u32 *)get_property(cpunode, "clock-frequency", NULL);
+	value = get_property(cpunode, "clock-frequency", NULL);
 	if (!value)
 		goto out;
 	cur_freq = (*value) / 1000;
diff --git a/arch/powerpc/platforms/powermac/cpufreq_64.c b/arch/powerpc/platforms/powermac/cpufreq_64.c
index a6a84ac5433e..c364c89adb4e 100644
--- a/arch/powerpc/platforms/powermac/cpufreq_64.c
+++ b/arch/powerpc/platforms/powermac/cpufreq_64.c
@@ -89,7 +89,7 @@ static DEFINE_MUTEX(g5_switch_mutex);
 
 #ifdef CONFIG_PPC_SMU
 
-static u32 *g5_pmode_data;
+static const u32 *g5_pmode_data;
 static int g5_pmode_max;
 
 static struct smu_sdbp_fvt *g5_fvt_table;	/* table of op. points */
@@ -391,7 +391,8 @@ static int __init g5_neo2_cpufreq_init(struct device_node *cpus)
 	unsigned int psize, ssize;
 	unsigned long max_freq;
 	char *freq_method, *volt_method;
-	u32 *valp, pvr_hi;
+	const u32 *valp;
+	u32 pvr_hi;
 	int use_volts_vdnap = 0;
 	int use_volts_smu = 0;
 	int rc = -ENODEV;
@@ -409,8 +410,7 @@ static int __init g5_neo2_cpufreq_init(struct device_node *cpus)
 	/* Get first CPU node */
 	for (cpunode = NULL;
 	     (cpunode = of_get_next_child(cpus, cpunode)) != NULL;) {
-		u32 *reg =
-			(u32 *)get_property(cpunode, "reg", NULL);
+		const u32 *reg = get_property(cpunode, "reg", NULL);
 		if (reg == NULL || (*reg) != 0)
 			continue;
 		if (!strcmp(cpunode->type, "cpu"))
@@ -422,7 +422,7 @@ static int __init g5_neo2_cpufreq_init(struct device_node *cpus)
 	}
 
 	/* Check 970FX for now */
-	valp = (u32 *)get_property(cpunode, "cpu-version", NULL);
+	valp = get_property(cpunode, "cpu-version", NULL);
 	if (!valp) {
 		DBG("No cpu-version property !\n");
 		goto bail_noprops;
@@ -434,7 +434,7 @@ static int __init g5_neo2_cpufreq_init(struct device_node *cpus)
 	}
 
 	/* Look for the powertune data in the device-tree */
-	g5_pmode_data = (u32 *)get_property(cpunode, "power-mode-data",&psize);
+	g5_pmode_data = get_property(cpunode, "power-mode-data",&psize);
 	if (!g5_pmode_data) {
 		DBG("No power-mode-data !\n");
 		goto bail_noprops;
@@ -442,7 +442,7 @@ static int __init g5_neo2_cpufreq_init(struct device_node *cpus)
 	g5_pmode_max = psize / sizeof(u32) - 1;
 
 	if (use_volts_smu) {
-		struct smu_sdbp_header *shdr;
+		const struct smu_sdbp_header *shdr;
 
 		/* Look for the FVT table */
 		shdr = smu_get_sdb_partition(SMU_SDB_FVT_ID, NULL);
@@ -493,7 +493,7 @@ static int __init g5_neo2_cpufreq_init(struct device_node *cpus)
 	 * half freq in this version. So far, I haven't yet seen a machine
 	 * supporting anything else.
 	 */
-	valp = (u32 *)get_property(cpunode, "clock-frequency", NULL);
+	valp = get_property(cpunode, "clock-frequency", NULL);
 	if (!valp)
 		return -ENODEV;
 	max_freq = (*valp)/1000;
@@ -541,8 +541,8 @@ static int __init g5_neo2_cpufreq_init(struct device_node *cpus)
 static int __init g5_pm72_cpufreq_init(struct device_node *cpus)
 {
 	struct device_node *cpuid = NULL, *hwclock = NULL, *cpunode = NULL;
-	u8 *eeprom = NULL;
-	u32 *valp;
+	const u8 *eeprom = NULL;
+	const u32 *valp;
 	u64 max_freq, min_freq, ih, il;
 	int has_volt = 1, rc = 0;
 
@@ -563,7 +563,7 @@ static int __init g5_pm72_cpufreq_init(struct device_node *cpus)
 	/* Lookup the cpuid eeprom node */
         cpuid = of_find_node_by_path("/u3@0,f8000000/i2c@f8001000/cpuid@a0");
 	if (cpuid != NULL)
-		eeprom = (u8 *)get_property(cpuid, "cpuid", NULL);
+		eeprom = get_property(cpuid, "cpuid", NULL);
 	if (eeprom == NULL) {
 		printk(KERN_ERR "cpufreq: Can't find cpuid EEPROM !\n");
 		rc = -ENODEV;
@@ -573,7 +573,8 @@ static int __init g5_pm72_cpufreq_init(struct device_node *cpus)
 	/* Lookup the i2c hwclock */
 	for (hwclock = NULL;
 	     (hwclock = of_find_node_by_name(hwclock, "i2c-hwclock")) != NULL;){
-		char *loc = get_property(hwclock, "hwctrl-location", NULL);
+		const char *loc = get_property(hwclock,
+				"hwctrl-location", NULL);
 		if (loc == NULL)
 			continue;
 		if (strcmp(loc, "CPU CLOCK"))
@@ -637,7 +638,7 @@ static int __init g5_pm72_cpufreq_init(struct device_node *cpus)
 	 */
 
 	/* Get max frequency from device-tree */
-	valp = (u32 *)get_property(cpunode, "clock-frequency", NULL);
+	valp = get_property(cpunode, "clock-frequency", NULL);
 	if (!valp) {
 		printk(KERN_ERR "cpufreq: Can't find CPU frequency !\n");
 		rc = -ENODEV;
diff --git a/arch/powerpc/platforms/powermac/feature.c b/arch/powerpc/platforms/powermac/feature.c
index f8313bf9a9f7..13fcaf5b1796 100644
--- a/arch/powerpc/platforms/powermac/feature.c
+++ b/arch/powerpc/platforms/powermac/feature.c
@@ -1058,8 +1058,8 @@ core99_reset_cpu(struct device_node *node, long param, long value)
 	if (np == NULL)
 		return -ENODEV;
 	for (np = np->child; np != NULL; np = np->sibling) {
-		u32 *num = (u32 *)get_property(np, "reg", NULL);
-		u32 *rst = (u32 *)get_property(np, "soft-reset", NULL);
+		u32 *num = get_property(np, "reg", NULL);
+		u32 *rst = get_property(np, "soft-reset", NULL);
 		if (num == NULL || rst == NULL)
 			continue;
 		if (param == *num) {
@@ -1087,7 +1087,7 @@ core99_usb_enable(struct device_node *node, long param, long value)
 {
 	struct macio_chip *macio;
 	unsigned long flags;
-	char *prop;
+	const char *prop;
 	int number;
 	u32 reg;
 
@@ -1096,7 +1096,7 @@ core99_usb_enable(struct device_node *node, long param, long value)
 	    macio->type != macio_intrepid)
 		return -ENODEV;
 
-	prop = (char *)get_property(node, "AAPL,clock-id", NULL);
+	prop = get_property(node, "AAPL,clock-id", NULL);
 	if (!prop)
 		return -ENODEV;
 	if (strncmp(prop, "usb0u048", 8) == 0)
@@ -1507,8 +1507,8 @@ static long g5_reset_cpu(struct device_node *node, long param, long value)
 	if (np == NULL)
 		return -ENODEV;
 	for (np = np->child; np != NULL; np = np->sibling) {
-		u32 *num = (u32 *)get_property(np, "reg", NULL);
-		u32 *rst = (u32 *)get_property(np, "soft-reset", NULL);
+		const u32 *num = get_property(np, "reg", NULL);
+		const u32 *rst = get_property(np, "soft-reset", NULL);
 		if (num == NULL || rst == NULL)
 			continue;
 		if (param == *num) {
@@ -2408,7 +2408,7 @@ static int __init probe_motherboard(void)
 	 */
 	dt = find_devices("device-tree");
 	if (dt != NULL)
-		model = (const char *) get_property(dt, "model", NULL);
+		model = get_property(dt, "model", NULL);
 	for(i=0; model && i<(sizeof(pmac_mb_defs)/sizeof(struct pmac_mb_def)); i++) {
 	    if (strcmp(model, pmac_mb_defs[i].model_string) == 0) {
 		pmac_mb = pmac_mb_defs[i];
@@ -2536,7 +2536,7 @@ found:
  */
 static void __init probe_uninorth(void)
 {
-	u32 *addrp;
+	const u32 *addrp;
 	phys_addr_t address;
 	unsigned long actrl;
 
@@ -2555,7 +2555,7 @@ static void __init probe_uninorth(void)
 	if (uninorth_node == NULL)
 		return;
 
-	addrp = (u32 *)get_property(uninorth_node, "reg", NULL);
+	addrp = get_property(uninorth_node, "reg", NULL);
 	if (addrp == NULL)
 		return;
 	address = of_translate_address(uninorth_node, addrp);
@@ -2596,7 +2596,7 @@ static void __init probe_one_macio(const char *name, const char *compat, int typ
 	struct device_node*	node;
 	int			i;
 	volatile u32 __iomem	*base;
-	u32			*addrp, *revp;
+	const u32		*addrp, *revp;
 	phys_addr_t		addr;
 	u64			size;
 
@@ -2639,7 +2639,7 @@ static void __init probe_one_macio(const char *name, const char *compat, int typ
 		return;
 	}
 	if (type == macio_keylargo || type == macio_keylargo2) {
-		u32 *did = (u32 *)get_property(node, "device-id", NULL);
+		const u32 *did = get_property(node, "device-id", NULL);
 		if (*did == 0x00000025)
 			type = macio_pangea;
 		if (*did == 0x0000003e)
@@ -2652,7 +2652,7 @@ static void __init probe_one_macio(const char *name, const char *compat, int typ
 	macio_chips[i].base	= base;
 	macio_chips[i].flags	= MACIO_FLAG_SCCB_ON | MACIO_FLAG_SCCB_ON;
 	macio_chips[i].name	= macio_names[type];
-	revp = (u32 *)get_property(node, "revision-id", NULL);
+	revp = get_property(node, "revision-id", NULL);
 	if (revp)
 		macio_chips[i].rev = *revp;
 	printk(KERN_INFO "Found a %s mac-io controller, rev: %d, mapped at 0x%p\n",
@@ -2695,15 +2695,15 @@ static void __init
 initial_serial_shutdown(struct device_node *np)
 {
 	int len;
-	struct slot_names_prop {
+	const struct slot_names_prop {
 		int	count;
 		char	name[1];
 	} *slots;
-	char *conn;
+	const char *conn;
 	int port_type = PMAC_SCC_ASYNC;
 	int modem = 0;
 
-	slots = (struct slot_names_prop *)get_property(np, "slot-names", &len);
+	slots = get_property(np, "slot-names", &len);
 	conn = get_property(np, "AAPL,connector", &len);
 	if (conn && (strcmp(conn, "infrared") == 0))
 		port_type = PMAC_SCC_IRDA;
diff --git a/arch/powerpc/platforms/powermac/low_i2c.c b/arch/powerpc/platforms/powermac/low_i2c.c
index 8677f50c2586..c2c7cf75dd5f 100644
--- a/arch/powerpc/platforms/powermac/low_i2c.c
+++ b/arch/powerpc/platforms/powermac/low_i2c.c
@@ -477,7 +477,8 @@ static int kw_i2c_xfer(struct pmac_i2c_bus *bus, u8 addrdir, int subsize,
 static struct pmac_i2c_host_kw *__init kw_i2c_host_init(struct device_node *np)
 {
 	struct pmac_i2c_host_kw *host;
-	u32			*psteps, *prate, *addrp, steps;
+	const u32		*psteps, *prate, *addrp;
+	u32			steps;
 
 	host = kzalloc(sizeof(struct pmac_i2c_host_kw), GFP_KERNEL);
 	if (host == NULL) {
@@ -490,7 +491,7 @@ static struct pmac_i2c_host_kw *__init kw_i2c_host_init(struct device_node *np)
 	 * on all i2c keywest nodes so far ... we would have to fallback
 	 * to macio parsing if that wasn't the case
 	 */
-	addrp = (u32 *)get_property(np, "AAPL,address", NULL);
+	addrp = get_property(np, "AAPL,address", NULL);
 	if (addrp == NULL) {
 		printk(KERN_ERR "low_i2c: Can't find address for %s\n",
 		       np->full_name);
@@ -504,13 +505,13 @@ static struct pmac_i2c_host_kw *__init kw_i2c_host_init(struct device_node *np)
 	host->timeout_timer.function = kw_i2c_timeout;
 	host->timeout_timer.data = (unsigned long)host;
 
-	psteps = (u32 *)get_property(np, "AAPL,address-step", NULL);
+	psteps = get_property(np, "AAPL,address-step", NULL);
 	steps = psteps ? (*psteps) : 0x10;
 	for (host->bsteps = 0; (steps & 0x01) == 0; host->bsteps++)
 		steps >>= 1;
 	/* Select interface rate */
 	host->speed = KW_I2C_MODE_25KHZ;
-	prate = (u32 *)get_property(np, "AAPL,i2c-rate", NULL);
+	prate = get_property(np, "AAPL,i2c-rate", NULL);
 	if (prate) switch(*prate) {
 	case 100:
 		host->speed = KW_I2C_MODE_100KHZ;
@@ -618,8 +619,8 @@ static void __init kw_i2c_probe(void)
 		} else {
 			for (child = NULL;
 			     (child = of_get_next_child(np, child)) != NULL;) {
-				u32 *reg =
-					(u32 *)get_property(child, "reg", NULL);
+				const u32 *reg = get_property(child,
+						"reg", NULL);
 				if (reg == NULL)
 					continue;
 				kw_i2c_add(host, np, child, *reg);
@@ -881,7 +882,7 @@ static void __init smu_i2c_probe(void)
 {
 	struct device_node *controller, *busnode;
 	struct pmac_i2c_bus *bus;
-	u32 *reg;
+	const u32 *reg;
 	int sz;
 
 	if (!smu_present())
@@ -904,7 +905,7 @@ static void __init smu_i2c_probe(void)
 		if (strcmp(busnode->type, "i2c") &&
 		    strcmp(busnode->type, "i2c-bus"))
 			continue;
-		reg = (u32 *)get_property(busnode, "reg", NULL);
+		reg = get_property(busnode, "reg", NULL);
 		if (reg == NULL)
 			continue;
 
@@ -948,9 +949,8 @@ struct pmac_i2c_bus *pmac_i2c_find_bus(struct device_node *node)
 		list_for_each_entry(bus, &pmac_i2c_busses, link) {
 			if (p == bus->busnode) {
 				if (prev && bus->flags & pmac_i2c_multibus) {
-					u32 *reg;
-					reg = (u32 *)get_property(prev, "reg",
-								  NULL);
+					const u32 *reg;
+					reg = get_property(prev, "reg", NULL);
 					if (!reg)
 						continue;
 					if (((*reg) >> 8) != bus->channel)
@@ -971,7 +971,7 @@ EXPORT_SYMBOL_GPL(pmac_i2c_find_bus);
 
 u8 pmac_i2c_get_dev_addr(struct device_node *device)
 {
-	u32 *reg = (u32 *)get_property(device, "reg", NULL);
+	const u32 *reg = get_property(device, "reg", NULL);
 
 	if (reg == NULL)
 		return 0;
diff --git a/arch/powerpc/platforms/powermac/pci.c b/arch/powerpc/platforms/powermac/pci.c
index 556b349797e8..787ffd999bc2 100644
--- a/arch/powerpc/platforms/powermac/pci.c
+++ b/arch/powerpc/platforms/powermac/pci.c
@@ -69,16 +69,16 @@ struct device_node *k2_skiplist[2];
 static int __init fixup_one_level_bus_range(struct device_node *node, int higher)
 {
 	for (; node != 0;node = node->sibling) {
-		int * bus_range;
-		unsigned int *class_code;
+		const int * bus_range;
+		const unsigned int *class_code;
 		int len;
 
 		/* For PCI<->PCI bridges or CardBus bridges, we go down */
-		class_code = (unsigned int *) get_property(node, "class-code", NULL);
+		class_code = get_property(node, "class-code", NULL);
 		if (!class_code || ((*class_code >> 8) != PCI_CLASS_BRIDGE_PCI &&
 			(*class_code >> 8) != PCI_CLASS_BRIDGE_CARDBUS))
 			continue;
-		bus_range = (int *) get_property(node, "bus-range", &len);
+		bus_range = get_property(node, "bus-range", &len);
 		if (bus_range != NULL && len > 2 * sizeof(int)) {
 			if (bus_range[1] > higher)
 				higher = bus_range[1];
@@ -96,13 +96,15 @@ static int __init fixup_one_level_bus_range(struct device_node *node, int higher
  */
 static void __init fixup_bus_range(struct device_node *bridge)
 {
-	int * bus_range;
-	int len;
+	int *bus_range, len;
+	struct property *prop;
 
 	/* Lookup the "bus-range" property for the hose */
-	bus_range = (int *) get_property(bridge, "bus-range", &len);
-	if (bus_range == NULL || len < 2 * sizeof(int))
+	prop = of_find_property(bridge, "bus-range", &len);
+	if (prop == NULL || prop->length < 2 * sizeof(int))
 		return;
+
+	bus_range = (int *)prop->value;
 	bus_range[1] = fixup_one_level_bus_range(bridge->child, bus_range[1]);
 }
 
@@ -240,7 +242,7 @@ static struct pci_ops macrisc_pci_ops =
 static int chaos_validate_dev(struct pci_bus *bus, int devfn, int offset)
 {
 	struct device_node *np;
-	u32 *vendor, *device;
+	const u32 *vendor, *device;
 
 	if (offset >= 0x100)
 		return  PCIBIOS_BAD_REGISTER_NUMBER;
@@ -248,8 +250,8 @@ static int chaos_validate_dev(struct pci_bus *bus, int devfn, int offset)
 	if (np == NULL)
 		return PCIBIOS_DEVICE_NOT_FOUND;
 
-	vendor = (u32 *)get_property(np, "vendor-id", NULL);
-	device = (u32 *)get_property(np, "device-id", NULL);
+	vendor = get_property(np, "vendor-id", NULL);
+	device = get_property(np, "device-id", NULL);
 	if (vendor == NULL || device == NULL)
 		return PCIBIOS_DEVICE_NOT_FOUND;
 
@@ -689,20 +691,21 @@ static void __init fixup_nec_usb2(void)
 
 	for (nec = NULL; (nec = of_find_node_by_name(nec, "usb")) != NULL;) {
 		struct pci_controller *hose;
-		u32 data, *prop;
+		u32 data;
+		const u32 *prop;
 		u8 bus, devfn;
 
-		prop = (u32 *)get_property(nec, "vendor-id", NULL);
+		prop = get_property(nec, "vendor-id", NULL);
 		if (prop == NULL)
 			continue;
 		if (0x1033 != *prop)
 			continue;
-		prop = (u32 *)get_property(nec, "device-id", NULL);
+		prop = get_property(nec, "device-id", NULL);
 		if (prop == NULL)
 			continue;
 		if (0x0035 != *prop)
 			continue;
-		prop = (u32 *)get_property(nec, "reg", NULL);
+		prop = get_property(nec, "reg", NULL);
 		if (prop == NULL)
 			continue;
 		devfn = (prop[0] >> 8) & 0xff;
@@ -901,7 +904,7 @@ static int __init add_bridge(struct device_node *dev)
 	struct pci_controller *hose;
 	struct resource rsrc;
 	char *disp_name;
-	int *bus_range;
+	const int *bus_range;
 	int primary = 1, has_address = 0;
 
 	DBG("Adding PCI host bridge %s\n", dev->full_name);
@@ -910,7 +913,7 @@ static int __init add_bridge(struct device_node *dev)
 	has_address = (of_address_to_resource(dev, 0, &rsrc) == 0);
 
 	/* Get bus range if any */
-	bus_range = (int *) get_property(dev, "bus-range", &len);
+	bus_range = get_property(dev, "bus-range", &len);
 	if (bus_range == NULL || len < 2 * sizeof(int)) {
 		printk(KERN_WARNING "Can't get bus-range for %s, assume"
 		       " bus 0\n", dev->full_name);
diff --git a/arch/powerpc/platforms/powermac/pfunc_base.c b/arch/powerpc/platforms/powermac/pfunc_base.c
index 6d66359ec8c8..829dacec96e5 100644
--- a/arch/powerpc/platforms/powermac/pfunc_base.c
+++ b/arch/powerpc/platforms/powermac/pfunc_base.c
@@ -114,7 +114,7 @@ static void macio_gpio_init_one(struct macio_chip *macio)
 	 * we just create them all
 	 */
 	for (gp = NULL; (gp = of_get_next_child(gparent, gp)) != NULL;) {
-		u32 *reg = (u32 *)get_property(gp, "reg", NULL);
+		const u32 *reg = get_property(gp, "reg", NULL);
 		unsigned long offset;
 		if (reg == NULL)
 			continue;
diff --git a/arch/powerpc/platforms/powermac/pfunc_core.c b/arch/powerpc/platforms/powermac/pfunc_core.c
index b117adbf9571..7651f278615a 100644
--- a/arch/powerpc/platforms/powermac/pfunc_core.c
+++ b/arch/powerpc/platforms/powermac/pfunc_core.c
@@ -813,14 +813,15 @@ struct pmf_function *__pmf_find_function(struct device_node *target,
 	struct pmf_device *dev;
 	struct pmf_function *func, *result = NULL;
 	char fname[64];
-	u32 *prop, ph;
+	const u32 *prop;
+	u32 ph;
 
 	/*
 	 * Look for a "platform-*" function reference. If we can't find
 	 * one, then we fallback to a direct call attempt
 	 */
 	snprintf(fname, 63, "platform-%s", name);
-	prop = (u32 *)get_property(target, fname, NULL);
+	prop = get_property(target, fname, NULL);
 	if (prop == NULL)
 		goto find_it;
 	ph = *prop;
diff --git a/arch/powerpc/platforms/powermac/setup.c b/arch/powerpc/platforms/powermac/setup.c
index 31a9da769fa2..824a618396ab 100644
--- a/arch/powerpc/platforms/powermac/setup.c
+++ b/arch/powerpc/platforms/powermac/setup.c
@@ -116,7 +116,7 @@ extern struct smp_ops_t core99_smp_ops;
 static void pmac_show_cpuinfo(struct seq_file *m)
 {
 	struct device_node *np;
-	char *pp;
+	const char *pp;
 	int plen;
 	int mbmodel;
 	unsigned int mbflags;
@@ -134,12 +134,12 @@ static void pmac_show_cpuinfo(struct seq_file *m)
 	seq_printf(m, "machine\t\t: ");
 	np = of_find_node_by_path("/");
 	if (np != NULL) {
-		pp = (char *) get_property(np, "model", NULL);
+		pp = get_property(np, "model", NULL);
 		if (pp != NULL)
 			seq_printf(m, "%s\n", pp);
 		else
 			seq_printf(m, "PowerMac\n");
-		pp = (char *) get_property(np, "compatible", &plen);
+		pp = get_property(np, "compatible", &plen);
 		if (pp != NULL) {
 			seq_printf(m, "motherboard\t:");
 			while (plen > 0) {
@@ -163,10 +163,8 @@ static void pmac_show_cpuinfo(struct seq_file *m)
 	if (np == NULL)
 		np = of_find_node_by_type(NULL, "cache");
 	if (np != NULL) {
-		unsigned int *ic = (unsigned int *)
-			get_property(np, "i-cache-size", NULL);
-		unsigned int *dc = (unsigned int *)
-			get_property(np, "d-cache-size", NULL);
+		const unsigned int *ic = get_property(np, "i-cache-size", NULL);
+		const unsigned int *dc = get_property(np, "d-cache-size", NULL);
 		seq_printf(m, "L2 cache\t:");
 		has_l2cache = 1;
 		if (get_property(np, "cache-unified", NULL) != 0 && dc) {
@@ -254,7 +252,7 @@ static void __init l2cr_init(void)
 		if (np == 0)
 			np = find_type_devices("cpu");
 		if (np != 0) {
-			unsigned int *l2cr = (unsigned int *)
+			const unsigned int *l2cr =
 				get_property(np, "l2cr-value", NULL);
 			if (l2cr != 0) {
 				ppc_override_l2cr = 1;
@@ -277,7 +275,7 @@ static void __init l2cr_init(void)
 static void __init pmac_setup_arch(void)
 {
 	struct device_node *cpu, *ic;
-	int *fp;
+	const int *fp;
 	unsigned long pvr;
 
 	pvr = PVR_VER(mfspr(SPRN_PVR));
@@ -287,7 +285,7 @@ static void __init pmac_setup_arch(void)
 	loops_per_jiffy = 50000000 / HZ;
 	cpu = of_find_node_by_type(NULL, "cpu");
 	if (cpu != NULL) {
-		fp = (int *) get_property(cpu, "clock-frequency", NULL);
+		fp = get_property(cpu, "clock-frequency", NULL);
 		if (fp != NULL) {
 			if (pvr >= 0x30 && pvr < 0x80)
 				/* PPC970 etc. */
diff --git a/arch/powerpc/platforms/powermac/smp.c b/arch/powerpc/platforms/powermac/smp.c
index 827b7121ffb8..653eeb64d1e2 100644
--- a/arch/powerpc/platforms/powermac/smp.c
+++ b/arch/powerpc/platforms/powermac/smp.c
@@ -548,7 +548,7 @@ static void __init smp_core99_setup_i2c_hwsync(int ncpus)
 	struct device_node *cc = NULL;	
 	struct device_node *p;
 	const char *name = NULL;
-	u32 *reg;
+	const u32 *reg;
 	int ok;
 
 	/* Look for the clock chip */
@@ -562,7 +562,7 @@ static void __init smp_core99_setup_i2c_hwsync(int ncpus)
 		pmac_tb_clock_chip_host = pmac_i2c_find_bus(cc);
 		if (pmac_tb_clock_chip_host == NULL)
 			continue;
-		reg = (u32 *)get_property(cc, "reg", NULL);
+		reg = get_property(cc, "reg", NULL);
 		if (reg == NULL)
 			continue;
 		switch (*reg) {
@@ -707,8 +707,7 @@ static void __init smp_core99_setup(int ncpus)
 		core99_tb_gpio = KL_GPIO_TB_ENABLE;	/* default value */
 		cpu = of_find_node_by_type(NULL, "cpu");
 		if (cpu != NULL) {
-			tbprop = (u32 *)get_property(cpu, "timebase-enable",
-						     NULL);
+			tbprop = get_property(cpu, "timebase-enable", NULL);
 			if (tbprop)
 				core99_tb_gpio = *tbprop;
 			of_node_put(cpu);
diff --git a/arch/powerpc/platforms/powermac/udbg_scc.c b/arch/powerpc/platforms/powermac/udbg_scc.c
index 37e5b1eff911..ce1a235855f7 100644
--- a/arch/powerpc/platforms/powermac/udbg_scc.c
+++ b/arch/powerpc/platforms/powermac/udbg_scc.c
@@ -68,11 +68,11 @@ static unsigned char scc_inittab[] = {
 
 void udbg_scc_init(int force_scc)
 {
-	u32 *reg;
+	const u32 *reg;
 	unsigned long addr;
 	struct device_node *stdout = NULL, *escc = NULL, *macio = NULL;
 	struct device_node *ch, *ch_def = NULL, *ch_a = NULL;
-	char *path;
+	const char *path;
 	int i, x;
 
 	escc = of_find_node_by_name(NULL, "escc");
@@ -81,7 +81,7 @@ void udbg_scc_init(int force_scc)
 	macio = of_get_parent(escc);
 	if (macio == NULL)
 		goto bail;
-	path = (char *)get_property(of_chosen, "linux,stdout-path", NULL);
+	path = get_property(of_chosen, "linux,stdout-path", NULL);
 	if (path != NULL)
 		stdout = of_find_node_by_path(path);
 	for (ch = NULL; (ch = of_get_next_child(escc, ch)) != NULL;) {
@@ -96,13 +96,13 @@ void udbg_scc_init(int force_scc)
 	ch = ch_def ? ch_def : ch_a;
 
 	/* Get address within mac-io ASIC */
-	reg = (u32 *)get_property(escc, "reg", NULL);
+	reg = get_property(escc, "reg", NULL);
 	if (reg == NULL)
 		goto bail;
 	addr = reg[0];
 
 	/* Get address of mac-io PCI itself */
-	reg = (u32 *)get_property(macio, "assigned-addresses", NULL);
+	reg = get_property(macio, "assigned-addresses", NULL);
 	if (reg == NULL)
 		goto bail;
 	addr += reg[2];
diff --git a/drivers/i2c/busses/i2c-powermac.c b/drivers/i2c/busses/i2c-powermac.c
index 2a0b3be7cdd0..e8a6de5a1517 100644
--- a/drivers/i2c/busses/i2c-powermac.c
+++ b/drivers/i2c/busses/i2c-powermac.c
@@ -209,7 +209,8 @@ static int i2c_powermac_probe(struct device *dev)
 	struct pmac_i2c_bus *bus = dev->platform_data;
 	struct device_node *parent = NULL;
 	struct i2c_adapter *adapter;
-	char name[32], *basename;
+	char name[32];
+	const char *basename;
 	int rc;
 
 	if (bus == NULL)
diff --git a/drivers/ide/ppc/pmac.c b/drivers/ide/ppc/pmac.c
index ebf961f1718d..fa46856e8068 100644
--- a/drivers/ide/ppc/pmac.c
+++ b/drivers/ide/ppc/pmac.c
@@ -1154,7 +1154,7 @@ static int
 pmac_ide_setup_device(pmac_ide_hwif_t *pmif, ide_hwif_t *hwif)
 {
 	struct device_node *np = pmif->node;
-	int *bidp;
+	const int *bidp;
 
 	pmif->cable_80 = 0;
 	pmif->broken_dma = pmif->broken_dma_warn = 0;
@@ -1176,14 +1176,14 @@ pmac_ide_setup_device(pmac_ide_hwif_t *pmif, ide_hwif_t *hwif)
 		pmif->broken_dma = 1;
 	}
 
-	bidp = (int *)get_property(np, "AAPL,bus-id", NULL);
+	bidp = get_property(np, "AAPL,bus-id", NULL);
 	pmif->aapl_bus_id =  bidp ? *bidp : 0;
 
 	/* Get cable type from device-tree */
 	if (pmif->kind == controller_kl_ata4 || pmif->kind == controller_un_ata6
 	    || pmif->kind == controller_k2_ata6
 	    || pmif->kind == controller_sh_ata6) {
-		char* cable = get_property(np, "cable-type", NULL);
+		const char* cable = get_property(np, "cable-type", NULL);
 		if (cable && !strncmp(cable, "80-", 3))
 			pmif->cable_80 = 1;
 	}
diff --git a/drivers/macintosh/macio_asic.c b/drivers/macintosh/macio_asic.c
index 80c0c665b5f6..7817cf286d0c 100644
--- a/drivers/macintosh/macio_asic.c
+++ b/drivers/macintosh/macio_asic.c
@@ -139,7 +139,9 @@ static int macio_uevent(struct device *dev, char **envp, int num_envp,
 {
 	struct macio_dev * macio_dev;
 	struct of_device * of;
-	char *scratch, *compat, *compat2;
+	char *scratch;
+	const char *compat, *compat2;
+
 	int i = 0;
 	int length, cplen, cplen2, seen = 0;
 
@@ -173,7 +175,7 @@ static int macio_uevent(struct device *dev, char **envp, int num_envp,
          * it's not really legal to split it out with commas. We split it
          * up using a number of environment variables instead. */
 
-	compat = (char *) get_property(of->node, "compatible", &cplen);
+	compat = get_property(of->node, "compatible", &cplen);
 	compat2 = compat;
 	cplen2= cplen;
 	while (compat && cplen > 0) {
@@ -454,7 +456,7 @@ static struct macio_dev * macio_add_one_device(struct macio_chip *chip,
 					       struct resource *parent_res)
 {
 	struct macio_dev *dev;
-	u32 *reg;
+	const u32 *reg;
 	
 	if (np == NULL)
 		return NULL;
@@ -489,7 +491,7 @@ static struct macio_dev * macio_add_one_device(struct macio_chip *chip,
 #endif
 			MAX_NODE_NAME_SIZE, np->name);
 	} else {
-		reg = (u32 *)get_property(np, "reg", NULL);
+		reg = get_property(np, "reg", NULL);
 		sprintf(dev->ofdev.dev.bus_id, "%1d.%08x:%.*s",
 			chip->lbus.index,
 			reg ? *reg : 0, MAX_NODE_NAME_SIZE, np->name);
diff --git a/drivers/macintosh/macio_sysfs.c b/drivers/macintosh/macio_sysfs.c
index cae24a13526a..8566bdfdd4b8 100644
--- a/drivers/macintosh/macio_sysfs.c
+++ b/drivers/macintosh/macio_sysfs.c
@@ -16,12 +16,12 @@ static ssize_t
 compatible_show (struct device *dev, struct device_attribute *attr, char *buf)
 {
 	struct of_device *of;
-	char *compat;
+	const char *compat;
 	int cplen;
 	int length = 0;
 
 	of = &to_macio_device (dev)->ofdev;
-	compat = (char *) get_property(of->node, "compatible", &cplen);
+	compat = get_property(of->node, "compatible", &cplen);
 	if (!compat) {
 		*buf = '\0';
 		return 0;
@@ -42,12 +42,12 @@ static ssize_t modalias_show (struct device *dev, struct device_attribute *attr,
 			      char *buf)
 {
 	struct of_device *of;
-	char *compat;
+	const char *compat;
 	int cplen;
 	int length;
 
 	of = &to_macio_device (dev)->ofdev;
-	compat = (char *) get_property (of->node, "compatible", &cplen);
+	compat = get_property(of->node, "compatible", &cplen);
 	if (!compat) compat = "", cplen = 1;
 	length = sprintf (buf, "of:N%sT%s", of->node->name, of->node->type);
 	buf += length;
diff --git a/drivers/macintosh/smu.c b/drivers/macintosh/smu.c
index f139a74696fe..6f358600536e 100644
--- a/drivers/macintosh/smu.c
+++ b/drivers/macintosh/smu.c
@@ -447,7 +447,7 @@ EXPORT_SYMBOL(smu_present);
 int __init smu_init (void)
 {
 	struct device_node *np;
-	u32 *data;
+	const u32 *data;
 
         np = of_find_node_by_type(NULL, "smu");
         if (np == NULL)
@@ -483,7 +483,7 @@ int __init smu_init (void)
 		printk(KERN_ERR "SMU: Can't find doorbell GPIO !\n");
 		goto fail;
 	}
-	data = (u32 *)get_property(np, "reg", NULL);
+	data = get_property(np, "reg", NULL);
 	if (data == NULL) {
 		of_node_put(np);
 		printk(KERN_ERR "SMU: Can't find doorbell GPIO address !\n");
@@ -506,7 +506,7 @@ int __init smu_init (void)
 		np = of_find_node_by_name(NULL, "smu-interrupt");
 		if (np == NULL)
 			break;
-		data = (u32 *)get_property(np, "reg", NULL);
+		data = get_property(np, "reg", NULL);
 		if (data == NULL) {
 			of_node_put(np);
 			break;
@@ -959,11 +959,11 @@ static struct smu_sdbp_header *smu_create_sdb_partition(int id)
 /* Note: Only allowed to return error code in pointers (using ERR_PTR)
  * when interruptible is 1
  */
-struct smu_sdbp_header *__smu_get_sdb_partition(int id, unsigned int *size,
-						int interruptible)
+const struct smu_sdbp_header *__smu_get_sdb_partition(int id,
+		unsigned int *size, int interruptible)
 {
 	char pname[32];
-	struct smu_sdbp_header *part;
+	const struct smu_sdbp_header *part;
 
 	if (!smu)
 		return NULL;
@@ -980,8 +980,7 @@ struct smu_sdbp_header *__smu_get_sdb_partition(int id, unsigned int *size,
 	} else
 		mutex_lock(&smu_part_access);
 
-	part = (struct smu_sdbp_header *)get_property(smu->of_node,
-						      pname, size);
+	part = get_property(smu->of_node, pname, size);
 	if (part == NULL) {
 		DPRINTK("trying to extract from SMU ...\n");
 		part = smu_create_sdb_partition(id);
@@ -992,7 +991,7 @@ struct smu_sdbp_header *__smu_get_sdb_partition(int id, unsigned int *size,
 	return part;
 }
 
-struct smu_sdbp_header *smu_get_sdb_partition(int id, unsigned int *size)
+const struct smu_sdbp_header *smu_get_sdb_partition(int id, unsigned int *size)
 {
 	return __smu_get_sdb_partition(id, size, 0);
 }
@@ -1071,7 +1070,7 @@ static ssize_t smu_write(struct file *file, const char __user *buf,
 		pp->mode = smu_file_events;
 		return 0;
 	} else if (hdr.cmdtype == SMU_CMDTYPE_GET_PARTITION) {
-		struct smu_sdbp_header *part;
+		const struct smu_sdbp_header *part;
 		part = __smu_get_sdb_partition(hdr.cmd, NULL, 1);
 		if (part == NULL)
 			return -EINVAL;
diff --git a/drivers/macintosh/therm_adt746x.c b/drivers/macintosh/therm_adt746x.c
index 7f86478bdd36..a0f30d0853ea 100644
--- a/drivers/macintosh/therm_adt746x.c
+++ b/drivers/macintosh/therm_adt746x.c
@@ -47,7 +47,7 @@ static u8 FAN_SPD_SET[2] = {0x30, 0x31};
 
 static u8 default_limits_local[3] = {70, 50, 70};    /* local, sensor1, sensor2 */
 static u8 default_limits_chip[3] = {80, 65, 80};    /* local, sensor1, sensor2 */
-static char *sensor_location[3] = {NULL, NULL, NULL};
+static const char *sensor_location[3] = {NULL, NULL, NULL};
 
 static int limit_adjust = 0;
 static int fan_speed = -1;
@@ -553,7 +553,7 @@ static int __init
 thermostat_init(void)
 {
 	struct device_node* np;
-	u32 *prop;
+	const u32 *prop;
 	int i = 0, offset = 0;
 	
 	np = of_find_node_by_name(NULL, "fan");
@@ -566,13 +566,13 @@ thermostat_init(void)
 	else
 		return -ENODEV;
 
-	prop = (u32 *)get_property(np, "hwsensor-params-version", NULL);
+	prop = get_property(np, "hwsensor-params-version", NULL);
 	printk(KERN_INFO "adt746x: version %d (%ssupported)\n", *prop,
 			 (*prop == 1)?"":"un");
 	if (*prop != 1)
 		return -ENODEV;
 
-	prop = (u32 *)get_property(np, "reg", NULL);
+	prop = get_property(np, "reg", NULL);
 	if (!prop)
 		return -ENODEV;
 
diff --git a/drivers/macintosh/therm_pm72.c b/drivers/macintosh/therm_pm72.c
index 20bf67244e2c..d00c0c37a12e 100644
--- a/drivers/macintosh/therm_pm72.c
+++ b/drivers/macintosh/therm_pm72.c
@@ -660,7 +660,7 @@ static int read_eeprom(int cpu, struct mpu_data *out)
 {
 	struct device_node *np;
 	char nodename[64];
-	u8 *data;
+	const u8 *data;
 	int len;
 
 	/* prom.c routine for finding a node by path is a bit brain dead
@@ -673,7 +673,7 @@ static int read_eeprom(int cpu, struct mpu_data *out)
 		printk(KERN_ERR "therm_pm72: Failed to retrieve cpuid node from device-tree\n");
 		return -ENODEV;
 	}
-	data = (u8 *)get_property(np, "cpuid", &len);
+	data = get_property(np, "cpuid", &len);
 	if (data == NULL) {
 		printk(KERN_ERR "therm_pm72: Failed to retrieve cpuid property from device-tree\n");
 		of_node_put(np);
@@ -1336,7 +1336,7 @@ static int init_backside_state(struct backside_pid_state *state)
 	 */
 	u3 = of_find_node_by_path("/u3@0,f8000000");
 	if (u3 != NULL) {
-		u32 *vers = (u32 *)get_property(u3, "device-rev", NULL);
+		const u32 *vers = get_property(u3, "device-rev", NULL);
 		if (vers)
 			if (((*vers) & 0x3f) < 0x34)
 				u3h = 0;
@@ -2111,8 +2111,8 @@ static void fcu_lookup_fans(struct device_node *fcu_node)
 
 	while ((np = of_get_next_child(fcu_node, np)) != NULL) {
 		int type = -1;
-		char *loc;
-		u32 *reg;
+		const char *loc;
+		const u32 *reg;
 
 		DBG(" control: %s, type: %s\n", np->name, np->type);
 
@@ -2128,8 +2128,8 @@ static void fcu_lookup_fans(struct device_node *fcu_node)
 			continue;
 
 		/* Lookup for a matching location */
-		loc = (char *)get_property(np, "location", NULL);
-		reg = (u32 *)get_property(np, "reg", NULL);
+		loc = get_property(np, "location", NULL);
+		reg = get_property(np, "reg", NULL);
 		if (loc == NULL || reg == NULL)
 			continue;
 		DBG(" matching location: %s, reg: 0x%08x\n", loc, *reg);
diff --git a/drivers/macintosh/therm_windtunnel.c b/drivers/macintosh/therm_windtunnel.c
index c7d1c290cb0c..738faab1b22c 100644
--- a/drivers/macintosh/therm_windtunnel.c
+++ b/drivers/macintosh/therm_windtunnel.c
@@ -484,14 +484,14 @@ struct apple_thermal_info {
 static int __init
 g4fan_init( void )
 {
-	struct apple_thermal_info *info;
+	const struct apple_thermal_info *info;
 	struct device_node *np;
 
 	init_MUTEX( &x.lock );
 
 	if( !(np=of_find_node_by_name(NULL, "power-mgt")) )
 		return -ENODEV;
-	info = (struct apple_thermal_info*)get_property(np, "thermal-info", NULL);
+	info = get_property(np, "thermal-info", NULL);
 	of_node_put(np);
 
 	if( !info || !machine_is_compatible("PowerMac3,6") )
diff --git a/drivers/macintosh/via-cuda.c b/drivers/macintosh/via-cuda.c
index 69d5452fd22f..7512d1c15207 100644
--- a/drivers/macintosh/via-cuda.c
+++ b/drivers/macintosh/via-cuda.c
@@ -123,7 +123,7 @@ int __init find_via_cuda(void)
 {
     struct adb_request req;
     phys_addr_t taddr;
-    u32 *reg;
+    const u32 *reg;
     int err;
 
     if (vias != 0)
@@ -132,7 +132,7 @@ int __init find_via_cuda(void)
     if (vias == 0)
 	return 0;
 
-    reg = (u32 *)get_property(vias, "reg", NULL);
+    reg = get_property(vias, "reg", NULL);
     if (reg == NULL) {
 	    printk(KERN_ERR "via-cuda: No \"reg\" property !\n");
 	    goto fail;
diff --git a/drivers/macintosh/via-pmu-led.c b/drivers/macintosh/via-pmu-led.c
index 5189d5454b1f..179af10105d9 100644
--- a/drivers/macintosh/via-pmu-led.c
+++ b/drivers/macintosh/via-pmu-led.c
@@ -120,7 +120,7 @@ static int __init via_pmu_led_init(void)
 	dt = of_find_node_by_path("/");
 	if (dt == NULL)
 		return -ENODEV;
-	model = (const char *)get_property(dt, "model", NULL);
+	model = get_property(dt, "model", NULL);
 	if (model == NULL)
 		return -ENODEV;
 	if (strncmp(model, "PowerBook", strlen("PowerBook")) != 0 &&
diff --git a/drivers/macintosh/via-pmu.c b/drivers/macintosh/via-pmu.c
index 06ca80bfd6b9..80e88b4a1d07 100644
--- a/drivers/macintosh/via-pmu.c
+++ b/drivers/macintosh/via-pmu.c
@@ -287,7 +287,7 @@ static char *pbook_type[] = {
 int __init find_via_pmu(void)
 {
 	u64 taddr;
-	u32 *reg;
+	const u32 *reg;
 
 	if (via != 0)
 		return 1;
@@ -295,7 +295,7 @@ int __init find_via_pmu(void)
 	if (vias == NULL)
 		return 0;
 
-	reg = (u32 *)get_property(vias, "reg", NULL);
+	reg = get_property(vias, "reg", NULL);
 	if (reg == NULL) {
 		printk(KERN_ERR "via-pmu: No \"reg\" property !\n");
 		goto fail;
@@ -337,7 +337,7 @@ int __init find_via_pmu(void)
 		
 		gpiop = of_find_node_by_name(NULL, "gpio");
 		if (gpiop) {
-			reg = (u32 *)get_property(gpiop, "reg", NULL);
+			reg = get_property(gpiop, "reg", NULL);
 			if (reg)
 				gaddr = of_translate_address(gpiop, reg);
 			if (gaddr != OF_BAD_ADDR)
@@ -486,9 +486,9 @@ static int __init via_pmu_dev_init(void)
 		pmu_batteries[1].flags |= PMU_BATT_TYPE_SMART;
 	} else {
 		struct device_node* prim = find_devices("power-mgt");
-		u32 *prim_info = NULL;
+		const u32 *prim_info = NULL;
 		if (prim)
-			prim_info = (u32 *)get_property(prim, "prim-info", NULL);
+			prim_info = get_property(prim, "prim-info", NULL);
 		if (prim_info) {
 			/* Other stuffs here yet unknown */
 			pmu_battery_count = (prim_info[6] >> 16) & 0xff;
diff --git a/drivers/macintosh/windfarm_pm81.c b/drivers/macintosh/windfarm_pm81.c
index f1df6efcbe68..2ff546e4c92f 100644
--- a/drivers/macintosh/windfarm_pm81.c
+++ b/drivers/macintosh/windfarm_pm81.c
@@ -396,7 +396,7 @@ static void wf_smu_sys_fans_tick(struct wf_smu_sys_fans_state *st)
 static void wf_smu_create_cpu_fans(void)
 {
 	struct wf_cpu_pid_param pid_param;
-	struct smu_sdbp_header *hdr;
+	const struct smu_sdbp_header *hdr;
 	struct smu_sdbp_cpupiddata *piddata;
 	struct smu_sdbp_fvt *fvt;
 	s32 tmax, tdelta, maxpow, powadj;
@@ -702,7 +702,7 @@ static struct notifier_block wf_smu_events = {
 
 static int wf_init_pm(void)
 {
-	struct smu_sdbp_header *hdr;
+	const struct smu_sdbp_header *hdr;
 
 	hdr = smu_get_sdb_partition(SMU_SDB_SENSORTREE_ID, NULL);
 	if (hdr != 0) {
diff --git a/drivers/macintosh/windfarm_pm91.c b/drivers/macintosh/windfarm_pm91.c
index 0d6372e96d32..59e9ffe37c39 100644
--- a/drivers/macintosh/windfarm_pm91.c
+++ b/drivers/macintosh/windfarm_pm91.c
@@ -144,7 +144,7 @@ static struct wf_smu_slots_fans_state *wf_smu_slots_fans;
 static void wf_smu_create_cpu_fans(void)
 {
 	struct wf_cpu_pid_param pid_param;
-	struct smu_sdbp_header *hdr;
+	const struct smu_sdbp_header *hdr;
 	struct smu_sdbp_cpupiddata *piddata;
 	struct smu_sdbp_fvt *fvt;
 	s32 tmax, tdelta, maxpow, powadj;
diff --git a/drivers/macintosh/windfarm_smu_controls.c b/drivers/macintosh/windfarm_smu_controls.c
index a9e88edc0c72..bff1f372f188 100644
--- a/drivers/macintosh/windfarm_smu_controls.c
+++ b/drivers/macintosh/windfarm_smu_controls.c
@@ -159,14 +159,15 @@ static struct smu_fan_control *smu_fan_create(struct device_node *node,
 					      int pwm_fan)
 {
 	struct smu_fan_control *fct;
-	s32 *v; u32 *reg;
-	char *l;
+	const s32 *v;
+	const u32 *reg;
+	const char *l;
 
 	fct = kmalloc(sizeof(struct smu_fan_control), GFP_KERNEL);
 	if (fct == NULL)
 		return NULL;
 	fct->ctrl.ops = &smu_fan_ops;
-	l = (char *)get_property(node, "location", NULL);
+	l = get_property(node, "location", NULL);
 	if (l == NULL)
 		goto fail;
 
@@ -223,17 +224,17 @@ static struct smu_fan_control *smu_fan_create(struct device_node *node,
 		goto fail;
 
 	/* Get min & max values*/
-	v = (s32 *)get_property(node, "min-value", NULL);
+	v = get_property(node, "min-value", NULL);
 	if (v == NULL)
 		goto fail;
 	fct->min = *v;
-	v = (s32 *)get_property(node, "max-value", NULL);
+	v = get_property(node, "max-value", NULL);
 	if (v == NULL)
 		goto fail;
 	fct->max = *v;
 
 	/* Get "reg" value */
-	reg = (u32 *)get_property(node, "reg", NULL);
+	reg = get_property(node, "reg", NULL);
 	if (reg == NULL)
 		goto fail;
 	fct->reg = *reg;
diff --git a/drivers/macintosh/windfarm_smu_sat.c b/drivers/macintosh/windfarm_smu_sat.c
index e295a07a1ebc..aceb61d9fbc8 100644
--- a/drivers/macintosh/windfarm_smu_sat.c
+++ b/drivers/macintosh/windfarm_smu_sat.c
@@ -233,15 +233,15 @@ static void wf_sat_create(struct i2c_adapter *adapter, struct device_node *dev)
 {
 	struct wf_sat *sat;
 	struct wf_sat_sensor *sens;
-	u32 *reg;
-	char *loc, *type;
+	const u32 *reg;
+	const char *loc, *type;
 	u8 addr, chip, core;
 	struct device_node *child;
 	int shift, cpu, index;
 	char *name;
 	int vsens[2], isens[2];
 
-	reg = (u32 *) get_property(dev, "reg", NULL);
+	reg = get_property(dev, "reg", NULL);
 	if (reg == NULL)
 		return;
 	addr = *reg;
@@ -268,7 +268,7 @@ static void wf_sat_create(struct i2c_adapter *adapter, struct device_node *dev)
 	isens[0] = isens[1] = -1;
 	child = NULL;
 	while ((child = of_get_next_child(dev, child)) != NULL) {
-		reg = (u32 *) get_property(child, "reg", NULL);
+		reg = get_property(child, "reg", NULL);
 		type = get_property(child, "device_type", NULL);
 		loc = get_property(child, "location", NULL);
 		if (reg == NULL || loc == NULL)
diff --git a/drivers/macintosh/windfarm_smu_sensors.c b/drivers/macintosh/windfarm_smu_sensors.c
index bed25dcf8a1e..defe9922ebd1 100644
--- a/drivers/macintosh/windfarm_smu_sensors.c
+++ b/drivers/macintosh/windfarm_smu_sensors.c
@@ -198,14 +198,14 @@ static struct wf_sensor_ops smu_slotspow_ops = {
 static struct smu_ad_sensor *smu_ads_create(struct device_node *node)
 {
 	struct smu_ad_sensor *ads;
-	char *c, *l;
-	u32 *v;
+	const char *c, *l;
+	const u32 *v;
 
 	ads = kmalloc(sizeof(struct smu_ad_sensor), GFP_KERNEL);
 	if (ads == NULL)
 		return NULL;
-	c = (char *)get_property(node, "device_type", NULL);
-	l = (char *)get_property(node, "location", NULL);
+	c = get_property(node, "device_type", NULL);
+	l = get_property(node, "location", NULL);
 	if (c == NULL || l == NULL)
 		goto fail;
 
@@ -255,7 +255,7 @@ static struct smu_ad_sensor *smu_ads_create(struct device_node *node)
 	} else
 		goto fail;
 
-	v = (u32 *)get_property(node, "reg", NULL);
+	v = get_property(node, "reg", NULL);
 	if (v == NULL)
 		goto fail;
 	ads->reg = *v;
@@ -382,7 +382,7 @@ smu_cpu_power_create(struct wf_sensor *volts, struct wf_sensor *amps)
 
 static void smu_fetch_param_partitions(void)
 {
-	struct smu_sdbp_header *hdr;
+	const struct smu_sdbp_header *hdr;
 
 	/* Get CPU voltage/current/power calibration data */
 	hdr = smu_get_sdb_partition(SMU_SDB_CPUVCP_ID, NULL);
diff --git a/drivers/serial/pmac_zilog.c b/drivers/serial/pmac_zilog.c
index bfd2a22759eb..a3b99caf80e6 100644
--- a/drivers/serial/pmac_zilog.c
+++ b/drivers/serial/pmac_zilog.c
@@ -1400,8 +1400,8 @@ static struct uart_ops pmz_pops = {
 static int __init pmz_init_port(struct uart_pmac_port *uap)
 {
 	struct device_node *np = uap->node;
-	char *conn;
-	struct slot_names_prop {
+	const char *conn;
+	const struct slot_names_prop {
 		int	count;
 		char	name[1];
 	} *slots;
@@ -1458,7 +1458,7 @@ no_dma:
 		uap->flags |= PMACZILOG_FLAG_IS_IRDA;
 	uap->port_type = PMAC_SCC_ASYNC;
 	/* 1999 Powerbook G3 has slot-names property instead */
-	slots = (struct slot_names_prop *)get_property(np, "slot-names", &len);
+	slots = get_property(np, "slot-names", &len);
 	if (slots && slots->count > 0) {
 		if (strcmp(slots->name, "IrDA") == 0)
 			uap->flags |= PMACZILOG_FLAG_IS_IRDA;
@@ -1470,7 +1470,8 @@ no_dma:
 	if (ZS_IS_INTMODEM(uap)) {
 		struct device_node* i2c_modem = find_devices("i2c-modem");
 		if (i2c_modem) {
-			char* mid = get_property(i2c_modem, "modem-id", NULL);
+			const char* mid =
+				get_property(i2c_modem, "modem-id", NULL);
 			if (mid) switch(*mid) {
 			case 0x04 :
 			case 0x05 :
diff --git a/include/asm-powerpc/smu.h b/include/asm-powerpc/smu.h
index 51e65fc46a03..e49f644ca63a 100644
--- a/include/asm-powerpc/smu.h
+++ b/include/asm-powerpc/smu.h
@@ -517,7 +517,7 @@ struct smu_sdbp_cpupiddata {
  * This returns the pointer to an SMU "sdb" partition data or NULL
  * if not found. The data format is described below
  */
-extern struct smu_sdbp_header *smu_get_sdb_partition(int id,
+extern const struct smu_sdbp_header *smu_get_sdb_partition(int id,
 					unsigned int *size);
 
 /* Get "sdb" partition data from an SMU satellite */
-- 
cgit v1.2.3


From 931b261f442e779b0656d9b04c7ffe4939ef8c0a Mon Sep 17 00:00:00 2001
From: Jeremy Kerr <jk@ozlabs.org>
Date: Wed, 12 Jul 2006 15:42:06 +1000
Subject: [POWERPC] Make get_property() return a const void *

Previous changes have treated the return values of get_property as
const, so now we can make the actual change to get_property(). There
shouldn't be a need to cast the return values anymore.

We will now get compiler warnings when property values are assigned to
a non-const variable.

If properties need to be updated, there's still the of_find_property
function.

Built for cell_defconfig, chrp32_defconfig, g5_defconfig,
iseries_defconfig, maple_defconfig, pmac32_defconfig, ppc64_defconfig
and pseries_defconfig.

Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
---
 arch/powerpc/kernel/prom.c | 2 +-
 include/asm-powerpc/prom.h | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

(limited to 'include')

diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index 2a3d84a39cb5..bf2005b2feb6 100644
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -1527,7 +1527,7 @@ struct property *of_find_property(struct device_node *np, const char *name,
  * Find a property with a given name for a given node
  * and return the value.
  */
-void *get_property(struct device_node *np, const char *name, int *lenp)
+const void *get_property(struct device_node *np, const char *name, int *lenp)
 {
 	struct property *pp = of_find_property(np,name,lenp);
 	return pp ? pp->value : NULL;
diff --git a/include/asm-powerpc/prom.h b/include/asm-powerpc/prom.h
index abdf1be66e97..31bfea4686a6 100644
--- a/include/asm-powerpc/prom.h
+++ b/include/asm-powerpc/prom.h
@@ -160,7 +160,7 @@ extern void unflatten_device_tree(void);
 extern void early_init_devtree(void *);
 extern int device_is_compatible(struct device_node *device, const char *);
 extern int machine_is_compatible(const char *compat);
-extern void *get_property(struct device_node *node, const char *name,
+extern const void *get_property(struct device_node *node, const char *name,
 		int *lenp);
 extern void print_properties(struct device_node *node);
 extern int prom_n_addr_cells(struct device_node* np);
-- 
cgit v1.2.3


From cb18bd40030c879cd93fef02fd579f74dbab473d Mon Sep 17 00:00:00 2001
From: Mike Kravetz <kravetz@us.ibm.com>
Date: Thu, 20 Jul 2006 23:39:51 -0700
Subject: [POWERPC] Instrument Hypervisor Calls: merge headers

Move all the Hypervisor call definitions to to a single header file.

Signed-off-by: Mike Kravetz <kravetz@us.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
---
 drivers/net/ibmveth.h        | 10 ----------
 include/asm-powerpc/hvcall.h |  8 ++++++++
 2 files changed, 8 insertions(+), 10 deletions(-)

(limited to 'include')

diff --git a/drivers/net/ibmveth.h b/drivers/net/ibmveth.h
index 8385bf836507..149191cef2f0 100644
--- a/drivers/net/ibmveth.h
+++ b/drivers/net/ibmveth.h
@@ -41,16 +41,6 @@
 #define IbmVethMcastRemoveFilter     0x2UL
 #define IbmVethMcastClearFilterTable 0x3UL
 
-/* hcall numbers */
-#define H_VIO_SIGNAL             0x104
-#define H_REGISTER_LOGICAL_LAN   0x114
-#define H_FREE_LOGICAL_LAN       0x118
-#define H_ADD_LOGICAL_LAN_BUFFER 0x11C
-#define H_SEND_LOGICAL_LAN       0x120
-#define H_MULTICAST_CTRL         0x130
-#define H_CHANGE_LOGICAL_LAN_MAC 0x14C
-#define H_FREE_LOGICAL_LAN_BUFFER 0x1D4
-
 /* hcall macros */
 #define h_register_logical_lan(ua, buflst, rxq, fltlst, mac) \
   plpar_hcall_norets(H_REGISTER_LOGICAL_LAN, ua, buflst, rxq, fltlst, mac)
diff --git a/include/asm-powerpc/hvcall.h b/include/asm-powerpc/hvcall.h
index 0d3c4e85711a..f07ae50cbc2c 100644
--- a/include/asm-powerpc/hvcall.h
+++ b/include/asm-powerpc/hvcall.h
@@ -164,9 +164,15 @@
 #define H_VIO_SIGNAL		0x104
 #define H_SEND_CRQ		0x108
 #define H_COPY_RDMA		0x110
+#define H_REGISTER_LOGICAL_LAN	0x114
+#define H_FREE_LOGICAL_LAN	0x118
+#define H_ADD_LOGICAL_LAN_BUFFER 0x11C
+#define H_SEND_LOGICAL_LAN	0x120
+#define H_MULTICAST_CTRL	0x130
 #define H_SET_XDABR		0x134
 #define H_STUFF_TCE		0x138
 #define H_PUT_TCE_INDIRECT	0x13C
+#define H_CHANGE_LOGICAL_LAN_MAC 0x14C
 #define H_VTERM_PARTNER_INFO	0x150
 #define H_REGISTER_VTERM	0x154
 #define H_FREE_VTERM		0x158
@@ -196,11 +202,13 @@
 #define H_GET_HCA_INFO          0x1B8
 #define H_GET_PERF_COUNT        0x1BC
 #define H_MANAGE_TRACE          0x1C0
+#define H_FREE_LOGICAL_LAN_BUFFER 0x1D4
 #define H_QUERY_INT_STATE       0x1E4
 #define H_POLL_PENDING		0x1D8
 #define H_JOIN			0x298
 #define H_VASI_STATE            0x2A4
 #define H_ENABLE_CRQ		0x2B0
+#define MAX_HCALL_OPCODES	(H_ENABLE_CRQ >> 2)
 
 #ifndef __ASSEMBLY__
 
-- 
cgit v1.2.3


From b9377ffc3a03cde558d76349a262a1adbb6d3112 Mon Sep 17 00:00:00 2001
From: Anton Blanchard <anton@samba.org>
Date: Wed, 19 Jul 2006 08:01:28 +1000
Subject: [POWERPC] clean up pseries hcall interfaces

Our pseries hcall interfaces are out of control:

	plpar_hcall_norets
	plpar_hcall
	plpar_hcall_8arg_2ret
	plpar_hcall_4out
	plpar_hcall_7arg_7ret
	plpar_hcall_9arg_9ret

Create 3 interfaces to cover all cases:

	plpar_hcall_norets:	7 arguments no returns
	plpar_hcall:		6 arguments 4 returns
	plpar_hcall9:		9 arguments 9 returns

There are only 2 cases in the kernel that need plpar_hcall9, hopefully
we can keep it that way.

Pass in a buffer to stash return parameters so we avoid the &dummy1,
&dummy2 madness.

Signed-off-by: Anton Blanchard <anton@samba.org>
--
Signed-off-by: Paul Mackerras <paulus@samba.org>
---
 arch/powerpc/kernel/lparcfg.c                   |  18 ++-
 arch/powerpc/kernel/rtas.c                      |  11 +-
 arch/powerpc/platforms/pseries/hvCall.S         | 207 ++++--------------------
 arch/powerpc/platforms/pseries/hvconsole.c      |   5 +-
 arch/powerpc/platforms/pseries/lpar.c           |  12 +-
 arch/powerpc/platforms/pseries/plpar_wrappers.h |  97 +++++++++--
 arch/powerpc/platforms/pseries/xics.c           |  22 +--
 drivers/net/ibmveth.c                           |   3 +-
 drivers/net/ibmveth.h                           |  17 +-
 include/asm-powerpc/hvcall.h                    | 105 +++---------
 10 files changed, 184 insertions(+), 313 deletions(-)

(limited to 'include')

diff --git a/arch/powerpc/kernel/lparcfg.c b/arch/powerpc/kernel/lparcfg.c
index 3ce3a2d56fa8..41c05dcd68f4 100644
--- a/arch/powerpc/kernel/lparcfg.c
+++ b/arch/powerpc/kernel/lparcfg.c
@@ -182,8 +182,14 @@ static unsigned int h_get_ppp(unsigned long *entitled,
 			      unsigned long *resource)
 {
 	unsigned long rc;
-	rc = plpar_hcall_4out(H_GET_PPP, 0, 0, 0, 0, entitled, unallocated,
-			      aggregation, resource);
+	unsigned long retbuf[PLPAR_HCALL_BUFSIZE];
+
+	rc = plpar_hcall(H_GET_PPP, retbuf);
+
+	*entitled = retbuf[0];
+	*unallocated = retbuf[1];
+	*aggregation = retbuf[2];
+	*resource = retbuf[3];
 
 	log_plpar_hcall_return(rc, "H_GET_PPP");
 
@@ -193,8 +199,12 @@ static unsigned int h_get_ppp(unsigned long *entitled,
 static void h_pic(unsigned long *pool_idle_time, unsigned long *num_procs)
 {
 	unsigned long rc;
-	unsigned long dummy;
-	rc = plpar_hcall(H_PIC, 0, 0, 0, 0, pool_idle_time, num_procs, &dummy);
+	unsigned long retbuf[PLPAR_HCALL_BUFSIZE];
+
+	rc = plpar_hcall(H_PIC, retbuf);
+
+	*pool_idle_time = retbuf[0];
+	*num_procs = retbuf[1];
 
 	if (rc != H_AUTHORITY)
 		log_plpar_hcall_return(rc, "H_PIC");
diff --git a/arch/powerpc/kernel/rtas.c b/arch/powerpc/kernel/rtas.c
index 10e10be324c9..14353b8789dd 100644
--- a/arch/powerpc/kernel/rtas.c
+++ b/arch/powerpc/kernel/rtas.c
@@ -668,15 +668,14 @@ static int rtas_ibm_suspend_me(struct rtas_args *args)
 	int i;
 	long state;
 	long rc;
-	unsigned long dummy;
-
+	unsigned long retbuf[PLPAR_HCALL_BUFSIZE];
 	struct rtas_suspend_me_data data;
 
 	/* Make sure the state is valid */
-	rc = plpar_hcall(H_VASI_STATE,
-			 ((u64)args->args[0] << 32) | args->args[1],
-			 0, 0, 0,
-			 &state, &dummy, &dummy);
+	rc = plpar_hcall(H_VASI_STATE, retbuf,
+			 ((u64)args->args[0] << 32) | args->args[1]);
+
+	state = retbuf[0];
 
 	if (rc) {
 		printk(KERN_ERR "rtas_ibm_suspend_me: vasi_state returned %ld\n",rc);
diff --git a/arch/powerpc/platforms/pseries/hvCall.S b/arch/powerpc/platforms/pseries/hvCall.S
index c9ff547f9d25..9a99b056bd27 100644
--- a/arch/powerpc/platforms/pseries/hvCall.S
+++ b/arch/powerpc/platforms/pseries/hvCall.S
@@ -1,7 +1,6 @@
 /*
  * This file contains the generic code to perform a call to the
  * pSeries LPAR hypervisor.
- * NOTE: this file will go away when we move to inline this work.
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
@@ -16,42 +15,6 @@
 
 	.text
 
-/* long plpar_hcall(unsigned long opcode,		R3
-			unsigned long arg1,		R4
-			unsigned long arg2,		R5
-			unsigned long arg3,		R6
-			unsigned long arg4,		R7
-			unsigned long *out1,		R8
-			unsigned long *out2,		R9
-			unsigned long *out3);		R10
- */
-_GLOBAL(plpar_hcall)
-	HMT_MEDIUM
-
-	mfcr	r0
-
-	std	r8,STK_PARM(r8)(r1)	/* Save out ptrs */
-	std	r9,STK_PARM(r9)(r1)
-	std	r10,STK_PARM(r10)(r1)
-
-	stw	r0,8(r1)
-
-	HVSC				/* invoke the hypervisor */
-
-	lwz	r0,8(r1)
-
-	ld	r8,STK_PARM(r8)(r1)	/* Fetch r4-r6 ret args */
-	ld	r9,STK_PARM(r9)(r1)
-	ld	r10,STK_PARM(r10)(r1)
-	std	r4,0(r8)
-	std	r5,0(r9)
-	std	r6,0(r10)
-
-	mtcrf	0xff,r0
-	blr				/* return r3 = status */
-
-
-/* Simple interface with no output values (other than status) */
 _GLOBAL(plpar_hcall_norets)
 	HMT_MEDIUM
 
@@ -64,164 +27,64 @@ _GLOBAL(plpar_hcall_norets)
 	mtcrf	0xff,r0
 	blr				/* return r3 = status */
 
-
-/* long plpar_hcall_8arg_2ret(unsigned long opcode,	R3
-			unsigned long arg1,		R4
-			unsigned long arg2,		R5
-			unsigned long arg3,		R6
-			unsigned long arg4,		R7
-			unsigned long arg5,		R8
-			unsigned long arg6,		R9
-			unsigned long arg7,		R10
-			unsigned long arg8,		112(R1)
-			unsigned long *out1);		120(R1)
- */
-_GLOBAL(plpar_hcall_8arg_2ret)
+_GLOBAL(plpar_hcall)
 	HMT_MEDIUM
 
 	mfcr	r0
-	ld	r11,STK_PARM(r11)(r1)	/* put arg8 in R11 */
 	stw	r0,8(r1)
 
-	HVSC				/* invoke the hypervisor */
-
-	lwz	r0,8(r1)
-	ld	r10,STK_PARM(r12)(r1)	/* Fetch r4 ret arg */
-	std	r4,0(r10)
-	mtcrf	0xff,r0
-	blr				/* return r3 = status */
-
-
-/* long plpar_hcall_4out(unsigned long opcode,		R3
-		 	unsigned long arg1,		R4
-		 	unsigned long arg2,		R5
-		 	unsigned long arg3,		R6
-		 	unsigned long arg4,		R7
-		 	unsigned long *out1,		R8
-		 	unsigned long *out2,		R9
-		 	unsigned long *out3,		R10
-		 	unsigned long *out4);		112(R1)
- */
-_GLOBAL(plpar_hcall_4out)
-	HMT_MEDIUM
-
-	mfcr	r0
-	stw	r0,8(r1)
+	std     r4,STK_PARM(r4)(r1)     /* Save ret buffer */
 
-	std	r8,STK_PARM(r8)(r1)	/* Save out ptrs */
-	std	r9,STK_PARM(r9)(r1)
-	std	r10,STK_PARM(r10)(r1)
+	mr	r4,r5
+	mr	r5,r6
+	mr	r6,r7
+	mr	r7,r8
+	mr	r8,r9
+	mr	r9,r10
 
 	HVSC				/* invoke the hypervisor */
 
-	lwz	r0,8(r1)
-
-	ld	r8,STK_PARM(r8)(r1)	/* Fetch r4-r7 ret args */
-	ld	r9,STK_PARM(r9)(r1)
-	ld	r10,STK_PARM(r10)(r1)
-	ld	r11,STK_PARM(r11)(r1)
-	std	r4,0(r8)
-	std	r5,0(r9)
-	std	r6,0(r10)
-	std	r7,0(r11)
-
-	mtcrf	0xff,r0
-	blr				/* return r3 = status */
-
-/* plpar_hcall_7arg_7ret(unsigned long opcode,		R3
-			 unsigned long arg1,		R4
-			 unsigned long arg2,		R5
-			 unsigned long arg3,		R6
-			 unsigned long arg4,		R7
-			 unsigned long arg5,		R8
-			 unsigned long arg6,		R9
-			 unsigned long arg7,		R10
-			 unsigned long *out1,		112(R1)
-			 unsigned long *out2,		110(R1)
-			 unsigned long *out3,		108(R1)
-			 unsigned long *out4,		106(R1)
-			 unsigned long *out5,		104(R1)
-			 unsigned long *out6,		102(R1)
-			 unsigned long *out7);		100(R1)
-*/
-_GLOBAL(plpar_hcall_7arg_7ret)
-	HMT_MEDIUM
-
-	mfcr	r0
-	stw	r0,8(r1)
-
-	HVSC				/* invoke the hypervisor */
+	ld	r12,STK_PARM(r4)(r1)
+	std	r4,  0(r12)
+	std	r5,  8(r12)
+	std	r6, 16(r12)
+	std	r7, 24(r12)
 
 	lwz	r0,8(r1)
-
-	ld	r11,STK_PARM(r11)(r1)	/* Fetch r4 ret arg */
-	std	r4,0(r11)
-	ld	r11,STK_PARM(r12)(r1)	/* Fetch r5 ret arg */
-	std	r5,0(r11)
-	ld	r11,STK_PARM(r13)(r1)	/* Fetch r6 ret arg */
-	std	r6,0(r11)
-	ld	r11,STK_PARM(r14)(r1)	/* Fetch r7 ret arg */
-	std	r7,0(r11)
-	ld	r11,STK_PARM(r15)(r1)	/* Fetch r8 ret arg */
-	std	r8,0(r11)
-	ld	r11,STK_PARM(r16)(r1)	/* Fetch r9 ret arg */
-	std	r9,0(r11)
-	ld	r11,STK_PARM(r17)(r1)	/* Fetch r10 ret arg */
-	std	r10,0(r11)
-
 	mtcrf	0xff,r0
 
 	blr				/* return r3 = status */
 
-/* plpar_hcall_9arg_9ret(unsigned long opcode,		R3
-			 unsigned long arg1,		R4
-			 unsigned long arg2,		R5
-			 unsigned long arg3,		R6
-			 unsigned long arg4,		R7
-			 unsigned long arg5,		R8
-			 unsigned long arg6,		R9
-			 unsigned long arg7,		R10
-			 unsigned long arg8,		112(R1)
-			 unsigned long arg9,		110(R1)
-			 unsigned long *out1,		108(R1)
-			 unsigned long *out2,		106(R1)
-			 unsigned long *out3,		104(R1)
-			 unsigned long *out4,		102(R1)
-			 unsigned long *out5,		100(R1)
-			 unsigned long *out6,		 98(R1)
-			 unsigned long *out7);		 96(R1)
-			 unsigned long *out8,		 94(R1)
-		         unsigned long *out9,            92(R1)
-*/
-_GLOBAL(plpar_hcall_9arg_9ret)
+_GLOBAL(plpar_hcall9)
 	HMT_MEDIUM
 
 	mfcr	r0
 	stw	r0,8(r1)
 
-	ld	r11,STK_PARM(r11)(r1)	 /* put arg8 in R11 */
-	ld	r12,STK_PARM(r12)(r1)    /* put arg9 in R12 */
+	std     r4,STK_PARM(r4)(r1)     /* Save ret buffer */
+
+	mr	r4,r5
+	mr	r5,r6
+	mr	r6,r7
+	mr	r7,r8
+	mr	r8,r9
+	mr	r9,r10
+	ld	r10,STK_PARM(r11)(r1)	 /* put arg7 in R10 */
+	ld	r11,STK_PARM(r12)(r1)	 /* put arg8 in R11 */
+	ld	r12,STK_PARM(r13)(r1)    /* put arg9 in R12 */
 
 	HVSC				/* invoke the hypervisor */
 
-	ld	r0,STK_PARM(r13)(r1)	/* Fetch r4 ret arg */
-	stdx	r4,r0,r0
-	ld	r0,STK_PARM(r14)(r1)	/* Fetch r5 ret arg */
-	stdx	r5,r0,r0
-	ld	r0,STK_PARM(r15)(r1)	/* Fetch r6 ret arg */
-	stdx	r6,r0,r0
-	ld	r0,STK_PARM(r16)(r1)	/* Fetch r7 ret arg */
-	stdx	r7,r0,r0
-	ld	r0,STK_PARM(r17)(r1)	/* Fetch r8 ret arg */
-	stdx	r8,r0,r0
-	ld	r0,STK_PARM(r18)(r1)	/* Fetch r9 ret arg */
-	stdx	r9,r0,r0
-	ld	r0,STK_PARM(r19)(r1)	/* Fetch r10 ret arg */
-	stdx	r10,r0,r0
-	ld	r0,STK_PARM(r20)(r1)	/* Fetch r11 ret arg */
-	stdx	r11,r0,r0
-	ld	r0,STK_PARM(r21)(r1)	/* Fetch r12 ret arg */
-	stdx	r12,r0,r0
+	ld	r12,STK_PARM(r4)(r1)
+	std	r4,  0(r12)
+	std	r5,  8(r12)
+	std	r6, 16(r12)
+	std	r7, 24(r12)
+	std	r8, 32(r12)
+	std	r9, 40(r12)
+	std	r10,48(r12)
+	std	r11,56(r12)
+	std	r12,64(r12)
 
 	lwz	r0,8(r1)
 	mtcrf	0xff,r0
diff --git a/arch/powerpc/platforms/pseries/hvconsole.c b/arch/powerpc/platforms/pseries/hvconsole.c
index a72a987f1d4d..3f6a89b09816 100644
--- a/arch/powerpc/platforms/pseries/hvconsole.c
+++ b/arch/powerpc/platforms/pseries/hvconsole.c
@@ -27,6 +27,7 @@
 #include <linux/module.h>
 #include <asm/hvcall.h>
 #include <asm/hvconsole.h>
+#include "plpar_wrappers.h"
 
 /**
  * hvc_get_chars - retrieve characters from firmware for denoted vterm adatper
@@ -40,9 +41,9 @@ int hvc_get_chars(uint32_t vtermno, char *buf, int count)
 {
 	unsigned long got;
 
-	if (plpar_hcall(H_GET_TERM_CHAR, vtermno, 0, 0, 0, &got,
-		(unsigned long *)buf, (unsigned long *)buf+1) == H_SUCCESS)
+	if (plpar_get_term_char(vtermno, &got, buf) == H_SUCCESS)
 		return got;
+
 	return 0;
 }
 
diff --git a/arch/powerpc/platforms/pseries/lpar.c b/arch/powerpc/platforms/pseries/lpar.c
index 4cb7ff227f72..6cbf14266d5e 100644
--- a/arch/powerpc/platforms/pseries/lpar.c
+++ b/arch/powerpc/platforms/pseries/lpar.c
@@ -48,13 +48,11 @@
 #define DBG_LOW(fmt...) do { } while(0)
 #endif
 
-/* in pSeries_hvCall.S */
+/* in hvCall.S */
 EXPORT_SYMBOL(plpar_hcall);
-EXPORT_SYMBOL(plpar_hcall_4out);
+EXPORT_SYMBOL(plpar_hcall9);
 EXPORT_SYMBOL(plpar_hcall_norets);
-EXPORT_SYMBOL(plpar_hcall_8arg_2ret);
-EXPORT_SYMBOL(plpar_hcall_7arg_7ret);
-EXPORT_SYMBOL(plpar_hcall_9arg_9ret);
+
 extern void pSeries_find_serial_port(void);
 
 
@@ -277,7 +275,6 @@ long pSeries_lpar_hpte_insert(unsigned long hpte_group,
 	unsigned long flags;
 	unsigned long slot;
 	unsigned long hpte_v, hpte_r;
-	unsigned long dummy0, dummy1;
 
 	if (!(vflags & HPTE_V_BOLTED))
 		DBG_LOW("hpte_insert(group=%lx, va=%016lx, pa=%016lx, "
@@ -302,8 +299,7 @@ long pSeries_lpar_hpte_insert(unsigned long hpte_group,
 	if (rflags & (_PAGE_GUARDED|_PAGE_NO_CACHE))
 		hpte_r &= ~_PAGE_COHERENT;
 
-	lpar_rc = plpar_hcall(H_ENTER, flags, hpte_group, hpte_v,
-			      hpte_r, &slot, &dummy0, &dummy1);
+	lpar_rc = plpar_pte_enter(flags, hpte_group, hpte_v, hpte_r, &slot);
 	if (unlikely(lpar_rc == H_PTEG_FULL)) {
 		if (!(vflags & HPTE_V_BOLTED))
 			DBG_LOW(" full\n");
diff --git a/arch/powerpc/platforms/pseries/plpar_wrappers.h b/arch/powerpc/platforms/pseries/plpar_wrappers.h
index 3bd1b3e06003..ebd15de7597e 100644
--- a/arch/powerpc/platforms/pseries/plpar_wrappers.h
+++ b/arch/powerpc/platforms/pseries/plpar_wrappers.h
@@ -5,20 +5,17 @@
 
 static inline long poll_pending(void)
 {
-	unsigned long dummy;
-	return plpar_hcall(H_POLL_PENDING, 0, 0, 0, 0, &dummy, &dummy, &dummy);
+	return plpar_hcall_norets(H_POLL_PENDING);
 }
 
 static inline long prod_processor(void)
 {
-	plpar_hcall_norets(H_PROD);
-	return 0;
+	return plpar_hcall_norets(H_PROD);
 }
 
 static inline long cede_processor(void)
 {
-	plpar_hcall_norets(H_CEDE);
-	return 0;
+	return plpar_hcall_norets(H_CEDE);
 }
 
 static inline long vpa_call(unsigned long flags, unsigned long cpu,
@@ -42,21 +39,47 @@ static inline long register_vpa(unsigned long cpu, unsigned long vpa)
 
 extern void vpa_init(int cpu);
 
+static inline long plpar_pte_enter(unsigned long flags,
+		unsigned long hpte_group, unsigned long hpte_v,
+		unsigned long hpte_r, unsigned long *slot)
+{
+	long rc;
+	unsigned long retbuf[PLPAR_HCALL_BUFSIZE];
+
+	rc = plpar_hcall(H_ENTER, retbuf, flags, hpte_group, hpte_v, hpte_r);
+
+	*slot = retbuf[0];
+
+	return rc;
+}
+
 static inline long plpar_pte_remove(unsigned long flags, unsigned long ptex,
 		unsigned long avpn, unsigned long *old_pteh_ret,
 		unsigned long *old_ptel_ret)
 {
-	unsigned long dummy;
-	return plpar_hcall(H_REMOVE, flags, ptex, avpn, 0, old_pteh_ret,
-			old_ptel_ret, &dummy);
+	long rc;
+	unsigned long retbuf[PLPAR_HCALL_BUFSIZE];
+
+	rc = plpar_hcall(H_REMOVE, retbuf, flags, ptex, avpn);
+
+	*old_pteh_ret = retbuf[0];
+	*old_ptel_ret = retbuf[1];
+
+	return rc;
 }
 
 static inline long plpar_pte_read(unsigned long flags, unsigned long ptex,
 		unsigned long *old_pteh_ret, unsigned long *old_ptel_ret)
 {
-	unsigned long dummy;
-	return plpar_hcall(H_READ, flags, ptex, 0, 0, old_pteh_ret,
-			old_ptel_ret, &dummy);
+	long rc;
+	unsigned long retbuf[PLPAR_HCALL_BUFSIZE];
+
+	rc = plpar_hcall(H_READ, retbuf, flags, ptex);
+
+	*old_pteh_ret = retbuf[0];
+	*old_ptel_ret = retbuf[1];
+
+	return rc;
 }
 
 static inline long plpar_pte_protect(unsigned long flags, unsigned long ptex,
@@ -68,9 +91,14 @@ static inline long plpar_pte_protect(unsigned long flags, unsigned long ptex,
 static inline long plpar_tce_get(unsigned long liobn, unsigned long ioba,
 		unsigned long *tce_ret)
 {
-	unsigned long dummy;
-	return plpar_hcall(H_GET_TCE, liobn, ioba, 0, 0, tce_ret, &dummy,
-			&dummy);
+	long rc;
+	unsigned long retbuf[PLPAR_HCALL_BUFSIZE];
+
+	rc = plpar_hcall(H_GET_TCE, retbuf, liobn, ioba);
+
+	*tce_ret = retbuf[0];
+
+	return rc;
 }
 
 static inline long plpar_tce_put(unsigned long liobn, unsigned long ioba,
@@ -94,9 +122,17 @@ static inline long plpar_tce_stuff(unsigned long liobn, unsigned long ioba,
 static inline long plpar_get_term_char(unsigned long termno,
 		unsigned long *len_ret, char *buf_ret)
 {
+	long rc;
+	unsigned long retbuf[PLPAR_HCALL_BUFSIZE];
 	unsigned long *lbuf = (unsigned long *)buf_ret;	/* TODO: alignment? */
-	return plpar_hcall(H_GET_TERM_CHAR, termno, 0, 0, 0, len_ret,
-			lbuf + 0, lbuf + 1);
+
+	rc = plpar_hcall(H_GET_TERM_CHAR, retbuf, termno);
+
+	*len_ret = retbuf[0];
+	lbuf[0] = retbuf[1];
+	lbuf[1] = retbuf[2];
+
+	return rc;
 }
 
 static inline long plpar_put_term_char(unsigned long termno, unsigned long len,
@@ -107,4 +143,31 @@ static inline long plpar_put_term_char(unsigned long termno, unsigned long len,
 			lbuf[1]);
 }
 
+static inline long plpar_eoi(unsigned long xirr)
+{
+	return plpar_hcall_norets(H_EOI, xirr);
+}
+
+static inline long plpar_cppr(unsigned long cppr)
+{
+	return plpar_hcall_norets(H_CPPR, cppr);
+}
+
+static inline long plpar_ipi(unsigned long servernum, unsigned long mfrr)
+{
+	return plpar_hcall_norets(H_IPI, servernum, mfrr);
+}
+
+static inline long plpar_xirr(unsigned long *xirr_ret)
+{
+	long rc;
+	unsigned long retbuf[PLPAR_HCALL_BUFSIZE];
+
+	rc = plpar_hcall(H_XIRR, retbuf);
+
+	*xirr_ret = retbuf[0];
+
+	return rc;
+}
+
 #endif /* _PSERIES_PLPAR_WRAPPERS_H */
diff --git a/arch/powerpc/platforms/pseries/xics.c b/arch/powerpc/platforms/pseries/xics.c
index 1eab4688be17..c88ec63129f3 100644
--- a/arch/powerpc/platforms/pseries/xics.c
+++ b/arch/powerpc/platforms/pseries/xics.c
@@ -34,6 +34,7 @@
 #include <asm/i8259.h>
 
 #include "xics.h"
+#include "plpar_wrappers.h"
 
 #define XICS_IPI		2
 #define XICS_IRQ_SPURIOUS	0
@@ -110,27 +111,6 @@ static inline void direct_qirr_info(int n_cpu, u8 value)
 /* LPAR low level accessors */
 
 
-static inline long plpar_eoi(unsigned long xirr)
-{
-	return plpar_hcall_norets(H_EOI, xirr);
-}
-
-static inline long plpar_cppr(unsigned long cppr)
-{
-	return plpar_hcall_norets(H_CPPR, cppr);
-}
-
-static inline long plpar_ipi(unsigned long servernum, unsigned long mfrr)
-{
-	return plpar_hcall_norets(H_IPI, servernum, mfrr);
-}
-
-static inline long plpar_xirr(unsigned long *xirr_ret)
-{
-	unsigned long dummy;
-	return plpar_hcall(H_XIRR, 0, 0, 0, 0, xirr_ret, &dummy, &dummy);
-}
-
 static inline unsigned int lpar_xirr_info_get(int n_cpu)
 {
 	unsigned long lpar_rc;
diff --git a/drivers/net/ibmveth.c b/drivers/net/ibmveth.c
index 0464e78f733a..e56eac88b809 100644
--- a/drivers/net/ibmveth.c
+++ b/drivers/net/ibmveth.c
@@ -702,7 +702,8 @@ static int ibmveth_start_xmit(struct sk_buff *skb, struct net_device *netdev)
 					     desc[3].desc,
 					     desc[4].desc,
 					     desc[5].desc,
-					     correlator);
+					     correlator,
+					     &correlator);
 	} while ((lpar_rc == H_BUSY) && (retry_count--));
 
 	if(lpar_rc != H_SUCCESS && lpar_rc != H_DROPPED) {
diff --git a/drivers/net/ibmveth.h b/drivers/net/ibmveth.h
index 149191cef2f0..f5b25bff1540 100644
--- a/drivers/net/ibmveth.h
+++ b/drivers/net/ibmveth.h
@@ -51,8 +51,21 @@
 #define h_add_logical_lan_buffer(ua, buf) \
   plpar_hcall_norets(H_ADD_LOGICAL_LAN_BUFFER, ua, buf)
 
-#define h_send_logical_lan(ua, buf1, buf2, buf3, buf4, buf5, buf6, correlator) \
-  plpar_hcall_8arg_2ret(H_SEND_LOGICAL_LAN, ua, buf1, buf2, buf3, buf4, buf5, buf6, correlator, &correlator)
+static inline long h_send_logical_lan(unsigned long unit_address,
+		unsigned long desc1, unsigned long desc2, unsigned long desc3,
+		unsigned long desc4, unsigned long desc5, unsigned long desc6,
+		unsigned long corellator_in, unsigned long *corellator_out)
+{
+	long rc;
+	unsigned long retbuf[PLPAR_HCALL9_BUFSIZE];
+
+	rc = plpar_hcall9(H_SEND_LOGICAL_LAN, retbuf, unit_address, desc1,
+			desc2, desc3, desc4, desc5, desc6, corellator_in);
+
+	*corellator_out = retbuf[0];
+
+	return rc;
+}
 
 #define h_multicast_ctrl(ua, cmd, mac) \
   plpar_hcall_norets(H_MULTICAST_CTRL, ua, cmd, mac)
diff --git a/include/asm-powerpc/hvcall.h b/include/asm-powerpc/hvcall.h
index f07ae50cbc2c..63ce1ac8c1f4 100644
--- a/include/asm-powerpc/hvcall.h
+++ b/include/asm-powerpc/hvcall.h
@@ -212,94 +212,39 @@
 
 #ifndef __ASSEMBLY__
 
-/* plpar_hcall() -- Generic call interface using above opcodes
+/**
+ * plpar_hcall_norets: - Make a pseries hypervisor call with no return arguments
+ * @opcode: The hypervisor call to make.
  *
- * The actual call interface is a hypervisor call instruction with
- * the opcode in R3 and input args in R4-R7.
- * Status is returned in R3 with variable output values in R4-R11.
- * Only H_PTE_READ with H_READ_4 uses R6-R11 so we ignore it for now
- * and return only two out args which MUST ALWAYS BE PROVIDED.
- */
-long plpar_hcall(unsigned long opcode,
-		 unsigned long arg1,
-		 unsigned long arg2,
-		 unsigned long arg3,
-		 unsigned long arg4,
-		 unsigned long *out1,
-		 unsigned long *out2,
-		 unsigned long *out3);
-
-/* Same as plpar_hcall but for those opcodes that return no values
- * other than status.  Slightly more efficient.
+ * This call supports up to 7 arguments and only returns the status of
+ * the hcall. Use this version where possible, its slightly faster than
+ * the other plpar_hcalls.
  */
 long plpar_hcall_norets(unsigned long opcode, ...);
 
-/*
- * Special hcall interface for ibmveth support.
- * Takes 8 input parms. Returns a rc and stores the
- * R4 return value in *out1.
- */
-long plpar_hcall_8arg_2ret(unsigned long opcode,
-			   unsigned long arg1,
-			   unsigned long arg2,
-			   unsigned long arg3,
-			   unsigned long arg4,
-			   unsigned long arg5,
-			   unsigned long arg6,
-			   unsigned long arg7,
-			   unsigned long arg8,
-			   unsigned long *out1);
-
-/* plpar_hcall_4out()
+/**
+ * plpar_hcall: - Make a pseries hypervisor call
+ * @opcode: The hypervisor call to make.
+ * @retbuf: Buffer to store up to 4 return arguments in.
  *
- * same as plpar_hcall except with 4 output arguments.
+ * This call supports up to 6 arguments and 4 return arguments. Use
+ * PLPAR_HCALL_BUFSIZE to size the return argument buffer.
  *
+ * Used for all but the craziest of phyp interfaces (see plpar_hcall9)
  */
-long plpar_hcall_4out(unsigned long opcode,
-		      unsigned long arg1,
-		      unsigned long arg2,
-		      unsigned long arg3,
-		      unsigned long arg4,
-		      unsigned long *out1,
-		      unsigned long *out2,
-		      unsigned long *out3,
-		      unsigned long *out4);
+#define PLPAR_HCALL_BUFSIZE 4
+long plpar_hcall(unsigned long opcode, unsigned long *retbuf, ...);
 
-long plpar_hcall_7arg_7ret(unsigned long opcode,
-			   unsigned long arg1,
-			   unsigned long arg2,
-			   unsigned long arg3,
-			   unsigned long arg4,
-			   unsigned long arg5,
-			   unsigned long arg6,
-			   unsigned long arg7,
-			   unsigned long *out1,
-			   unsigned long *out2,
-			   unsigned long *out3,
-			   unsigned long *out4,
-			   unsigned long *out5,
-			   unsigned long *out6,
-			   unsigned long *out7);
-
-long plpar_hcall_9arg_9ret(unsigned long opcode,
-			   unsigned long arg1,
-			   unsigned long arg2,
-			   unsigned long arg3,
-			   unsigned long arg4,
-			   unsigned long arg5,
-			   unsigned long arg6,
-			   unsigned long arg7,
-			   unsigned long arg8,
-			   unsigned long arg9,
-			   unsigned long *out1,
-			   unsigned long *out2,
-			   unsigned long *out3,
-			   unsigned long *out4,
-			   unsigned long *out5,
-			   unsigned long *out6,
-			   unsigned long *out7,
-			   unsigned long *out8,
-			   unsigned long *out9);
+/**
+ * plpar_hcall9: - Make a pseries hypervisor call with up to 9 return arguments
+ * @opcode: The hypervisor call to make.
+ * @retbuf: Buffer to store up to 9 return arguments in.
+ *
+ * This call supports up to 9 arguments and 9 return arguments. Use
+ * PLPAR_HCALL9_BUFSIZE to size the return argument buffer.
+ */
+#define PLPAR_HCALL9_BUFSIZE 9
+long plpar_hcall9(unsigned long opcode, unsigned long *retbuf, ...);
 
 #endif /* __ASSEMBLY__ */
 #endif /* __KERNEL__ */
-- 
cgit v1.2.3


From 40681b95a4ef798bc38c92e0d9b8c06bbdd34409 Mon Sep 17 00:00:00 2001
From: Michael Ellerman <michael@ellerman.id.au>
Date: Wed, 2 Aug 2006 11:13:50 +1000
Subject: [POWERPC] Make doc comments extractable

We don't have much in the way of doc comments, but some of those we do have
don't work because they start with "/***" or "/*", not "/**" which is what
kernel-doc requires.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
---
 arch/powerpc/kernel/crash_dump.c |  2 +-
 arch/powerpc/sysdev/i8259.c      |  2 +-
 include/asm-powerpc/irq.h        | 24 ++++++++++++------------
 include/asm-powerpc/prom.h       |  8 ++++----
 4 files changed, 18 insertions(+), 18 deletions(-)

(limited to 'include')

diff --git a/arch/powerpc/kernel/crash_dump.c b/arch/powerpc/kernel/crash_dump.c
index 371973be8d71..2f6f5a7bc69e 100644
--- a/arch/powerpc/kernel/crash_dump.c
+++ b/arch/powerpc/kernel/crash_dump.c
@@ -80,7 +80,7 @@ static int __init parse_savemaxmem(char *p)
 }
 __setup("savemaxmem=", parse_savemaxmem);
 
-/*
+/**
  * copy_oldmem_page - copy one page from "oldmem"
  * @pfn: page frame number to be copied
  * @buf: target memory address for the copy; this can be in kernel address
diff --git a/arch/powerpc/sysdev/i8259.c b/arch/powerpc/sysdev/i8259.c
index 9855820b9548..26a6a3becd66 100644
--- a/arch/powerpc/sysdev/i8259.c
+++ b/arch/powerpc/sysdev/i8259.c
@@ -224,7 +224,7 @@ static struct irq_host_ops i8259_host_ops = {
 	.xlate = i8259_host_xlate,
 };
 
-/****
+/**
  * i8259_init - Initialize the legacy controller
  * @node: device node of the legacy PIC (can be NULL, but then, it will match
  *        all interrupts, so beware)
diff --git a/include/asm-powerpc/irq.h b/include/asm-powerpc/irq.h
index d903a62959da..4da41efb1319 100644
--- a/include/asm-powerpc/irq.h
+++ b/include/asm-powerpc/irq.h
@@ -137,7 +137,7 @@ struct irq_map_entry {
 extern struct irq_map_entry irq_map[NR_IRQS];
 
 
-/***
+/**
  * irq_alloc_host - Allocate a new irq_host data structure
  * @node: device-tree node of the interrupt controller
  * @revmap_type: type of reverse mapping to use
@@ -159,14 +159,14 @@ extern struct irq_host *irq_alloc_host(unsigned int revmap_type,
 				       irq_hw_number_t inval_irq);
 
 
-/***
+/**
  * irq_find_host - Locates a host for a given device node
  * @node: device-tree node of the interrupt controller
  */
 extern struct irq_host *irq_find_host(struct device_node *node);
 
 
-/***
+/**
  * irq_set_default_host - Set a "default" host
  * @host: default host pointer
  *
@@ -178,7 +178,7 @@ extern struct irq_host *irq_find_host(struct device_node *node);
 extern void irq_set_default_host(struct irq_host *host);
 
 
-/***
+/**
  * irq_set_virq_count - Set the maximum number of virt irqs
  * @count: number of linux virtual irqs, capped with NR_IRQS
  *
@@ -188,7 +188,7 @@ extern void irq_set_default_host(struct irq_host *host);
 extern void irq_set_virq_count(unsigned int count);
 
 
-/***
+/**
  * irq_create_mapping - Map a hardware interrupt into linux virq space
  * @host: host owning this hardware interrupt or NULL for default host
  * @hwirq: hardware irq number in that host space
@@ -202,13 +202,13 @@ extern unsigned int irq_create_mapping(struct irq_host *host,
 				       irq_hw_number_t hwirq);
 
 
-/***
+/**
  * irq_dispose_mapping - Unmap an interrupt
  * @virq: linux virq number of the interrupt to unmap
  */
 extern void irq_dispose_mapping(unsigned int virq);
 
-/***
+/**
  * irq_find_mapping - Find a linux virq from an hw irq number.
  * @host: host owning this hardware interrupt
  * @hwirq: hardware irq number in that host space
@@ -221,7 +221,7 @@ extern unsigned int irq_find_mapping(struct irq_host *host,
 				     irq_hw_number_t hwirq);
 
 
-/***
+/**
  * irq_radix_revmap - Find a linux virq from a hw irq number.
  * @host: host owning this hardware interrupt
  * @hwirq: hardware irq number in that host space
@@ -232,7 +232,7 @@ extern unsigned int irq_find_mapping(struct irq_host *host,
 extern unsigned int irq_radix_revmap(struct irq_host *host,
 				     irq_hw_number_t hwirq);
 
-/***
+/**
  * irq_linear_revmap - Find a linux virq from a hw irq number.
  * @host: host owning this hardware interrupt
  * @hwirq: hardware irq number in that host space
@@ -247,7 +247,7 @@ extern unsigned int irq_linear_revmap(struct irq_host *host,
 
 
 
-/***
+/**
  * irq_alloc_virt - Allocate virtual irq numbers
  * @host: host owning these new virtual irqs
  * @count: number of consecutive numbers to allocate
@@ -261,7 +261,7 @@ extern unsigned int irq_alloc_virt(struct irq_host *host,
 				   unsigned int count,
 				   unsigned int hint);
 
-/***
+/**
  * irq_free_virt - Free virtual irq numbers
  * @virq: virtual irq number of the first interrupt to free
  * @count: number of interrupts to free
@@ -300,7 +300,7 @@ extern unsigned int irq_of_parse_and_map(struct device_node *dev, int index);
 
 /* -- End OF helpers -- */
 
-/***
+/**
  * irq_early_init - Init irq remapping subsystem
  */
 extern void irq_early_init(void);
diff --git a/include/asm-powerpc/prom.h b/include/asm-powerpc/prom.h
index 31bfea4686a6..7a457bd462a2 100644
--- a/include/asm-powerpc/prom.h
+++ b/include/asm-powerpc/prom.h
@@ -259,7 +259,7 @@ struct of_irq {
 	u32 specifier[OF_MAX_IRQ_SPEC];	/* Specifier copy */
 };
 
-/***
+/**
  * of_irq_map_init - Initialize the irq remapper
  * @flags:	flags defining workarounds to enable
  *
@@ -272,7 +272,7 @@ struct of_irq {
 
 extern void of_irq_map_init(unsigned int flags);
 
-/***
+/**
  * of_irq_map_raw - Low level interrupt tree parsing
  * @parent:	the device interrupt parent
  * @intspec:	interrupt specifier ("interrupts" property of the device)
@@ -292,7 +292,7 @@ extern int of_irq_map_raw(struct device_node *parent, const u32 *intspec,
 			  const u32 *addr, struct of_irq *out_irq);
 
 
-/***
+/**
  * of_irq_map_one - Resolve an interrupt for a device
  * @device:	the device whose interrupt is to be resolved
  * @index:     	index of the interrupt to resolve
@@ -305,7 +305,7 @@ extern int of_irq_map_raw(struct device_node *parent, const u32 *intspec,
 extern int of_irq_map_one(struct device_node *device, int index,
 			  struct of_irq *out_irq);
 
-/***
+/**
  * of_irq_map_pci - Resolve the interrupt for a PCI device
  * @pdev:	the device whose interrupt is to be resolved
  * @out_irq:	structure of_irq filled by this function
-- 
cgit v1.2.3


From 2f6093c84730b4bad65bcd0f2f904a5769b1dfc5 Mon Sep 17 00:00:00 2001
From: Michael Neuling <mikey@neuling.org>
Date: Mon, 7 Aug 2006 16:19:19 +1000
Subject: [POWERPC] Implement SLB shadow buffer

This adds a shadow buffer for the SLBs and regsiters it with PHYP.
Only the bolted SLB entries (top 3) are shadowed.

The SLB shadow buffer tells the hypervisor what the kernel needs to
have in the SLB for the kernel to be able to function.  The hypervisor
can use this information to speed up partition context switches.

Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
---
 arch/powerpc/kernel/asm-offsets.c               |  2 ++
 arch/powerpc/kernel/entry_64.S                  | 13 +++++++++
 arch/powerpc/kernel/paca.c                      | 15 +++++++++-
 arch/powerpc/mm/slb.c                           | 37 ++++++++++++++++++++++---
 arch/powerpc/platforms/pseries/lpar.c           | 24 +++++++++++++---
 arch/powerpc/platforms/pseries/plpar_wrappers.h | 10 +++++++
 arch/powerpc/platforms/pseries/setup.c          | 12 ++++++--
 include/asm-powerpc/lppaca.h                    | 19 +++++++++++++
 include/asm-powerpc/paca.h                      |  3 ++
 9 files changed, 124 insertions(+), 11 deletions(-)

(limited to 'include')

diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c
index ac0631958b20..2ef7ea860379 100644
--- a/arch/powerpc/kernel/asm-offsets.c
+++ b/arch/powerpc/kernel/asm-offsets.c
@@ -135,11 +135,13 @@ int main(void)
 	DEFINE(PACA_STARTPURR, offsetof(struct paca_struct, startpurr));
 	DEFINE(PACA_USER_TIME, offsetof(struct paca_struct, user_time));
 	DEFINE(PACA_SYSTEM_TIME, offsetof(struct paca_struct, system_time));
+	DEFINE(PACA_SLBSHADOWPTR, offsetof(struct paca_struct, slb_shadow_ptr));
 
 	DEFINE(LPPACASRR0, offsetof(struct lppaca, saved_srr0));
 	DEFINE(LPPACASRR1, offsetof(struct lppaca, saved_srr1));
 	DEFINE(LPPACAANYINT, offsetof(struct lppaca, int_dword.any_int));
 	DEFINE(LPPACADECRINT, offsetof(struct lppaca, int_dword.fields.decr_int));
+	DEFINE(SLBSHADOW_SAVEAREA, offsetof(struct slb_shadow, save_area));
 #endif /* CONFIG_PPC64 */
 
 	/* RTAS */
diff --git a/arch/powerpc/kernel/entry_64.S b/arch/powerpc/kernel/entry_64.S
index 54d9f5cdaab4..5baea498ea64 100644
--- a/arch/powerpc/kernel/entry_64.S
+++ b/arch/powerpc/kernel/entry_64.S
@@ -323,6 +323,11 @@ _GLOBAL(ret_from_fork)
  * The code which creates the new task context is in 'copy_thread'
  * in arch/powerpc/kernel/process.c 
  */
+#define SHADOW_SLB_BOLTED_STACK_ESID \
+		(SLBSHADOW_SAVEAREA + 0x10*(SLB_NUM_BOLTED-1))
+#define SHADOW_SLB_BOLTED_STACK_VSID \
+		(SLBSHADOW_SAVEAREA + 0x10*(SLB_NUM_BOLTED-1) + 8)
+
 	.align	7
 _GLOBAL(_switch)
 	mflr	r0
@@ -375,6 +380,14 @@ BEGIN_FTR_SECTION
 	ld	r7,KSP_VSID(r4)	/* Get new stack's VSID */
 	oris	r0,r6,(SLB_ESID_V)@h
 	ori	r0,r0,(SLB_NUM_BOLTED-1)@l
+
+	/* Update the last bolted SLB */
+	ld	r9,PACA_SLBSHADOWPTR(r13)
+ 	li	r12,0
+  	std	r12,SHADOW_SLB_BOLTED_STACK_ESID(r9) /* Clear ESID */
+	std	r7,SHADOW_SLB_BOLTED_STACK_VSID(r9)  /* Save VSID */
+ 	std	r0,SHADOW_SLB_BOLTED_STACK_ESID(r9)  /* Save ESID */
+
 	slbie	r6
 	slbie	r6		/* Workaround POWER5 < DD2.1 issue */
 	slbmte	r7,r0
diff --git a/arch/powerpc/kernel/paca.c b/arch/powerpc/kernel/paca.c
index c68741fed14b..55f1a25085cd 100644
--- a/arch/powerpc/kernel/paca.c
+++ b/arch/powerpc/kernel/paca.c
@@ -17,6 +17,7 @@
 #include <asm/lppaca.h>
 #include <asm/iseries/it_lp_reg_save.h>
 #include <asm/paca.h>
+#include <asm/mmu.h>
 
 
 /* This symbol is provided by the linker - let it fill in the paca
@@ -45,6 +46,17 @@ struct lppaca lppaca[] = {
 	},
 };
 
+/*
+ * 3 persistent SLBs are registered here.  The buffer will be zero
+ * initially, hence will all be invaild until we actually write them.
+ */
+struct slb_shadow slb_shadow[] __cacheline_aligned = {
+	[0 ... (NR_CPUS-1)] = {
+		.persistent = SLB_NUM_BOLTED,
+		.buffer_length = sizeof(struct slb_shadow),
+	},
+};
+
 /* The Paca is an array with one entry per processor.  Each contains an
  * lppaca, which contains the information shared between the
  * hypervisor and Linux.
@@ -59,7 +71,8 @@ struct lppaca lppaca[] = {
 	.lock_token = 0x8000,						    \
 	.paca_index = (number),		/* Paca Index */		    \
 	.kernel_toc = (unsigned long)(&__toc_start) + 0x8000UL,		    \
-	.hw_cpu_id = 0xffff,
+	.hw_cpu_id = 0xffff,						    \
+	.slb_shadow_ptr = &slb_shadow[number],
 
 #ifdef CONFIG_PPC_ISERIES
 #define PACA_INIT_ISERIES(number)					    \
diff --git a/arch/powerpc/mm/slb.c b/arch/powerpc/mm/slb.c
index de0c8842415c..d3733912adb4 100644
--- a/arch/powerpc/mm/slb.c
+++ b/arch/powerpc/mm/slb.c
@@ -22,6 +22,8 @@
 #include <asm/paca.h>
 #include <asm/cputable.h>
 #include <asm/cacheflush.h>
+#include <asm/smp.h>
+#include <linux/compiler.h>
 
 #ifdef DEBUG
 #define DBG(fmt...) udbg_printf(fmt)
@@ -50,9 +52,32 @@ static inline unsigned long mk_vsid_data(unsigned long ea, unsigned long flags)
 	return (get_kernel_vsid(ea) << SLB_VSID_SHIFT) | flags;
 }
 
-static inline void create_slbe(unsigned long ea, unsigned long flags,
-			       unsigned long entry)
+static inline void slb_shadow_update(unsigned long esid, unsigned long vsid,
+				     unsigned long entry)
 {
+	/*
+	 * Clear the ESID first so the entry is not valid while we are
+	 * updating it.
+	 */
+	get_slb_shadow()->save_area[entry].esid = 0;
+	barrier();
+	get_slb_shadow()->save_area[entry].vsid = vsid;
+	barrier();
+	get_slb_shadow()->save_area[entry].esid = esid;
+
+}
+
+static inline void create_shadowed_slbe(unsigned long ea, unsigned long flags,
+					unsigned long entry)
+{
+	/*
+	 * Updating the shadow buffer before writing the SLB ensures
+	 * we don't get a stale entry here if we get preempted by PHYP
+	 * between these two statements.
+	 */
+	slb_shadow_update(mk_esid_data(ea, entry), mk_vsid_data(ea, flags),
+			  entry);
+
 	asm volatile("slbmte  %0,%1" :
 		     : "r" (mk_vsid_data(ea, flags)),
 		       "r" (mk_esid_data(ea, entry))
@@ -77,6 +102,10 @@ void slb_flush_and_rebolt(void)
 	if ((ksp_esid_data & ESID_MASK) == PAGE_OFFSET)
 		ksp_esid_data &= ~SLB_ESID_V;
 
+	/* Only third entry (stack) may change here so only resave that */
+	slb_shadow_update(ksp_esid_data,
+			  mk_vsid_data(ksp_esid_data, lflags), 2);
+
 	/* We need to do this all in asm, so we're sure we don't touch
 	 * the stack between the slbia and rebolting it. */
 	asm volatile("isync\n"
@@ -209,9 +238,9 @@ void slb_initialize(void)
 	asm volatile("isync":::"memory");
 	asm volatile("slbmte  %0,%0"::"r" (0) : "memory");
 	asm volatile("isync; slbia; isync":::"memory");
-	create_slbe(PAGE_OFFSET, lflags, 0);
+	create_shadowed_slbe(PAGE_OFFSET, lflags, 0);
 
-	create_slbe(VMALLOC_START, vflags, 1);
+	create_shadowed_slbe(VMALLOC_START, vflags, 1);
 
 	/* We don't bolt the stack for the time being - we're in boot,
 	 * so the stack is in the bolted segment.  By the time it goes
diff --git a/arch/powerpc/platforms/pseries/lpar.c b/arch/powerpc/platforms/pseries/lpar.c
index 6cbf14266d5e..1820a0b0a8c6 100644
--- a/arch/powerpc/platforms/pseries/lpar.c
+++ b/arch/powerpc/platforms/pseries/lpar.c
@@ -252,18 +252,34 @@ out:
 void vpa_init(int cpu)
 {
 	int hwcpu = get_hard_smp_processor_id(cpu);
-	unsigned long vpa = __pa(&lppaca[cpu]);
+	unsigned long addr;
 	long ret;
 
 	if (cpu_has_feature(CPU_FTR_ALTIVEC))
 		lppaca[cpu].vmxregs_in_use = 1;
 
-	ret = register_vpa(hwcpu, vpa);
+	addr = __pa(&lppaca[cpu]);
+	ret = register_vpa(hwcpu, addr);
 
-	if (ret)
+	if (ret) {
 		printk(KERN_ERR "WARNING: vpa_init: VPA registration for "
 				"cpu %d (hw %d) of area %lx returns %ld\n",
-				cpu, hwcpu, vpa, ret);
+				cpu, hwcpu, addr, ret);
+		return;
+	}
+	/*
+	 * PAPR says this feature is SLB-Buffer but firmware never
+	 * reports that.  All SPLPAR support SLB shadow buffer.
+	 */
+	addr = __pa(&slb_shadow[cpu]);
+	if (firmware_has_feature(FW_FEATURE_SPLPAR)) {
+		ret = register_slb_shadow(hwcpu, addr);
+		if (ret)
+			printk(KERN_ERR
+			       "WARNING: vpa_init: SLB shadow buffer "
+			       "registration for cpu %d (hw %d) of area %lx "
+			       "returns %ld\n", cpu, hwcpu, addr, ret);
+	}
 }
 
 long pSeries_lpar_hpte_insert(unsigned long hpte_group,
diff --git a/arch/powerpc/platforms/pseries/plpar_wrappers.h b/arch/powerpc/platforms/pseries/plpar_wrappers.h
index ebd15de7597e..3eb7b294d92f 100644
--- a/arch/powerpc/platforms/pseries/plpar_wrappers.h
+++ b/arch/powerpc/platforms/pseries/plpar_wrappers.h
@@ -37,6 +37,16 @@ static inline long register_vpa(unsigned long cpu, unsigned long vpa)
 	return vpa_call(0x1, cpu, vpa);
 }
 
+static inline long unregister_slb_shadow(unsigned long cpu, unsigned long vpa)
+{
+	return vpa_call(0x7, cpu, vpa);
+}
+
+static inline long register_slb_shadow(unsigned long cpu, unsigned long vpa)
+{
+	return vpa_call(0x3, cpu, vpa);
+}
+
 extern void vpa_init(int cpu);
 
 static inline long plpar_pte_enter(unsigned long flags,
diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c
index de214d86ff44..6ebeecfd6bcb 100644
--- a/arch/powerpc/platforms/pseries/setup.c
+++ b/arch/powerpc/platforms/pseries/setup.c
@@ -234,9 +234,17 @@ static void pseries_kexec_cpu_down_xics(int crash_shutdown, int secondary)
 {
 	/* Don't risk a hypervisor call if we're crashing */
 	if (firmware_has_feature(FW_FEATURE_SPLPAR) && !crash_shutdown) {
-		unsigned long vpa = __pa(get_lppaca());
+		unsigned long addr;
 
-		if (unregister_vpa(hard_smp_processor_id(), vpa)) {
+		addr = __pa(get_slb_shadow());
+		if (unregister_slb_shadow(hard_smp_processor_id(), addr))
+			printk("SLB shadow buffer deregistration of "
+			       "cpu %u (hw_cpu_id %d) failed\n",
+			       smp_processor_id(),
+			       hard_smp_processor_id());
+
+		addr = __pa(get_lppaca());
+		if (unregister_vpa(hard_smp_processor_id(), addr)) {
 			printk("VPA deregistration of cpu %u (hw_cpu_id %d) "
 					"failed\n", smp_processor_id(),
 					hard_smp_processor_id());
diff --git a/include/asm-powerpc/lppaca.h b/include/asm-powerpc/lppaca.h
index 4dc514aabfe7..942bb450baff 100644
--- a/include/asm-powerpc/lppaca.h
+++ b/include/asm-powerpc/lppaca.h
@@ -27,7 +27,9 @@
 //
 //
 //----------------------------------------------------------------------------
+#include <linux/cache.h>
 #include <asm/types.h>
+#include <asm/mmu.h>
 
 /* The Hypervisor barfs if the lppaca crosses a page boundary.  A 1k
  * alignment is sufficient to prevent this */
@@ -133,5 +135,22 @@ struct lppaca {
 
 extern struct lppaca lppaca[];
 
+/*
+ * SLB shadow buffer structure as defined in the PAPR.  The save_area
+ * contains adjacent ESID and VSID pairs for each shadowed SLB.  The
+ * ESID is stored in the lower 64bits, then the VSID.
+ */
+struct slb_shadow {
+	u32	persistent;		// Number of persistent SLBs	x00-x03
+	u32	buffer_length;		// Total shadow buffer length	x04-x07
+	u64	reserved;		// Alignment			x08-x0f
+	struct	{
+		u64     esid;
+		u64	vsid;
+	} save_area[SLB_NUM_BOLTED];	//				x10-x40
+} ____cacheline_aligned;
+
+extern struct slb_shadow slb_shadow[];
+
 #endif /* __KERNEL__ */
 #endif /* _ASM_POWERPC_LPPACA_H */
diff --git a/include/asm-powerpc/paca.h b/include/asm-powerpc/paca.h
index 2d4585f06209..7ffa2512524e 100644
--- a/include/asm-powerpc/paca.h
+++ b/include/asm-powerpc/paca.h
@@ -23,6 +23,7 @@
 register struct paca_struct *local_paca asm("r13");
 #define get_paca()	local_paca
 #define get_lppaca()	(get_paca()->lppaca_ptr)
+#define get_slb_shadow()	(get_paca()->slb_shadow_ptr)
 
 struct task_struct;
 
@@ -98,6 +99,8 @@ struct paca_struct {
 	u64 user_time;			/* accumulated usermode TB ticks */
 	u64 system_time;		/* accumulated system TB ticks */
 	u64 startpurr;			/* PURR/TB value snapshot */
+
+	struct slb_shadow *slb_shadow_ptr;
 };
 
 extern struct paca_struct paca[];
-- 
cgit v1.2.3


From 5cf13911b1e72707b6f0eb39b2d819ec6e343d76 Mon Sep 17 00:00:00 2001
From: Michael Neuling <mikey@neuling.org>
Date: Mon, 7 Aug 2006 17:34:50 +1000
Subject: [POWERPC] Update lppaca offset comments

Update offset comments.  No functional change.

Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
---
 include/asm-powerpc/lppaca.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'include')

diff --git a/include/asm-powerpc/lppaca.h b/include/asm-powerpc/lppaca.h
index 942bb450baff..821ea0c512b4 100644
--- a/include/asm-powerpc/lppaca.h
+++ b/include/asm-powerpc/lppaca.h
@@ -116,7 +116,7 @@ struct lppaca {
 
 
 //=============================================================================
-// CACHE_LINE_3 0x0100 - 0x007F: This line is shared with other processors
+// CACHE_LINE_3 0x0100 - 0x017F: This line is shared with other processors
 //=============================================================================
 	// This is the yield_count.  An "odd" value (low bit on) means that
 	// the processor is yielded (either because of an OS yield or a PLIC
@@ -128,7 +128,7 @@ struct lppaca {
 	u8	reserved6[124];		// Reserved                     x04-x7F
 
 //=============================================================================
-// CACHE_LINE_4-5 0x0100 - 0x01FF Contains PMC interrupt data
+// CACHE_LINE_4-5 0x0180 - 0x027F Contains PMC interrupt data
 //=============================================================================
 	u8	pmc_save_area[256];	// PMC interrupt Area           x00-xFF
 } __attribute__((__aligned__(0x400)));
-- 
cgit v1.2.3


From f39b7a55a84e34e3074b168e30dc73b66e85261d Mon Sep 17 00:00:00 2001
From: Olof Johansson <olof@lixom.net>
Date: Fri, 11 Aug 2006 00:07:08 -0500
Subject: [POWERPC] Cleanup CPU inits

Cleanup CPU inits a bit more, Geoff Levand already did some earlier.

* Move CPU state save to cpu_setup, since cpu_setup is only ever done
  on cpu 0 on 64-bit and save is never done more than once.
* Rename __restore_cpu_setup to __restore_cpu_ppc970 and add
  function pointers to the cputable to use instead. Powermac always
  has 970 so no need to check there.
* Rename __970_cpu_preinit to __cpu_preinit_ppc970 and check PVR before
  calling it instead of in it, it's too early to use cputable.
* Rename pSeries_secondary_smp_init to generic_secondary_smp_init since
  everyone but powermac and iSeries use it.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
---
 arch/powerpc/kernel/asm-offsets.c      |  1 +
 arch/powerpc/kernel/cpu_setup_ppc970.S | 99 +++++++++-------------------------
 arch/powerpc/kernel/cputable.c         |  6 +++
 arch/powerpc/kernel/head_64.S          | 52 +++++++++++-------
 arch/powerpc/platforms/cell/smp.c      |  4 +-
 arch/powerpc/platforms/pseries/smp.c   |  4 +-
 include/asm-powerpc/cputable.h         |  3 ++
 7 files changed, 71 insertions(+), 98 deletions(-)

(limited to 'include')

diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c
index a2f95e467a75..c53acd2a6dfc 100644
--- a/arch/powerpc/kernel/asm-offsets.c
+++ b/arch/powerpc/kernel/asm-offsets.c
@@ -246,6 +246,7 @@ int main(void)
 	DEFINE(CPU_SPEC_PVR_VALUE, offsetof(struct cpu_spec, pvr_value));
 	DEFINE(CPU_SPEC_FEATURES, offsetof(struct cpu_spec, cpu_features));
 	DEFINE(CPU_SPEC_SETUP, offsetof(struct cpu_spec, cpu_setup));
+	DEFINE(CPU_SPEC_RESTORE, offsetof(struct cpu_spec, cpu_restore));
 
 #ifndef CONFIG_PPC64
 	DEFINE(pbe_address, offsetof(struct pbe, address));
diff --git a/arch/powerpc/kernel/cpu_setup_ppc970.S b/arch/powerpc/kernel/cpu_setup_ppc970.S
index f69af2c5d7b3..f619932794e8 100644
--- a/arch/powerpc/kernel/cpu_setup_ppc970.S
+++ b/arch/powerpc/kernel/cpu_setup_ppc970.S
@@ -16,27 +16,12 @@
 #include <asm/asm-offsets.h>
 #include <asm/cache.h>
 
-_GLOBAL(__970_cpu_preinit)
-	/*
-	 * Do nothing if not running in HV mode
-	 */
+_GLOBAL(__cpu_preinit_ppc970)
+	/* Do nothing if not running in HV mode */
 	mfmsr	r0
 	rldicl.	r0,r0,4,63
 	beqlr
 
-	/*
-	 * Deal only with PPC970 and PPC970FX.
-	 */
-	mfspr	r0,SPRN_PVR
-	srwi	r0,r0,16
-	cmpwi	r0,0x39
-	beq	1f
-	cmpwi	r0,0x3c
-	beq	1f
-	cmpwi	r0,0x44
-	bnelr
-1:
-
 	/* Make sure HID4:rm_ci is off before MMU is turned off, that large
 	 * pages are enabled with HID4:61 and clear HID5:DCBZ_size and
 	 * HID5:DCBZ32_ill
@@ -72,21 +57,6 @@ _GLOBAL(__970_cpu_preinit)
 	isync
 	blr
 
-_GLOBAL(__setup_cpu_ppc970)
-	mfspr	r0,SPRN_HID0
-	li	r11,5			/* clear DOZE and SLEEP */
-	rldimi	r0,r11,52,8		/* set NAP and DPM */
-	mtspr	SPRN_HID0,r0
-	mfspr	r0,SPRN_HID0
-	mfspr	r0,SPRN_HID0
-	mfspr	r0,SPRN_HID0
-	mfspr	r0,SPRN_HID0
-	mfspr	r0,SPRN_HID0
-	mfspr	r0,SPRN_HID0
-	sync
-	isync
-	blr
-
 /* Definitions for the table use to save CPU states */
 #define CS_HID0		0
 #define CS_HID1		8
@@ -101,33 +71,28 @@ cpu_state_storage:
 	.balign	L1_CACHE_BYTES,0
 	.text
 
-/* Called in normal context to backup CPU 0 state. This
- * does not include cache settings. This function is also
- * called for machine sleep. This does not include the MMU
- * setup, BATs, etc... but rather the "special" registers
- * like HID0, HID1, HID4, etc...
- */
-_GLOBAL(__save_cpu_setup)
-	/* Some CR fields are volatile, we back it up all */
-	mfcr	r7
-
-	/* Get storage ptr */
-	LOAD_REG_IMMEDIATE(r5,cpu_state_storage)
 
-	/* We only deal with 970 for now */
-	mfspr	r0,SPRN_PVR
-	srwi	r0,r0,16
-	cmpwi	r0,0x39
-	beq	1f
-	cmpwi	r0,0x3c
-	beq	1f
-	cmpwi	r0,0x44
-	bne	2f
-
-1:	/* skip if not running in HV mode */
+_GLOBAL(__setup_cpu_ppc970)
+	/* Do nothing if not running in HV mode */
 	mfmsr	r0
 	rldicl.	r0,r0,4,63
-	beq	2f
+	beqlr
+
+	mfspr	r0,SPRN_HID0
+	li	r11,5			/* clear DOZE and SLEEP */
+	rldimi	r0,r11,52,8		/* set NAP and DPM */
+	mtspr	SPRN_HID0,r0
+	mfspr	r0,SPRN_HID0
+	mfspr	r0,SPRN_HID0
+	mfspr	r0,SPRN_HID0
+	mfspr	r0,SPRN_HID0
+	mfspr	r0,SPRN_HID0
+	mfspr	r0,SPRN_HID0
+	sync
+	isync
+
+	/* Save away cpu state */
+	LOAD_REG_IMMEDIATE(r5,cpu_state_storage)
 
 	/* Save HID0,1,4 and 5 */
 	mfspr	r3,SPRN_HID0
@@ -139,35 +104,19 @@ _GLOBAL(__save_cpu_setup)
 	mfspr	r3,SPRN_HID5
 	std	r3,CS_HID5(r5)
 
-2:
-	mtcr	r7
 	blr
 
 /* Called with no MMU context (typically MSR:IR/DR off) to
  * restore CPU state as backed up by the previous
  * function. This does not include cache setting
  */
-_GLOBAL(__restore_cpu_setup)
-	/* Get storage ptr (FIXME when using anton reloc as we
-	 * are running with translation disabled here
-	 */
-	LOAD_REG_IMMEDIATE(r5,cpu_state_storage)
-
-	/* We only deal with 970 for now */
-	mfspr	r0,SPRN_PVR
-	srwi	r0,r0,16
-	cmpwi	r0,0x39
-	beq	1f
-	cmpwi	r0,0x3c
-	beq	1f
-	cmpwi	r0,0x44
-	bnelr
-
-1:	/* skip if not running in HV mode */
+_GLOBAL(__restore_cpu_ppc970)
+	/* Do nothing if not running in HV mode */
 	mfmsr	r0
 	rldicl.	r0,r0,4,63
 	beqlr
 
+	LOAD_REG_IMMEDIATE(r5,cpu_state_storage)
 	/* Before accessing memory, we make sure rm_ci is clear */
 	li	r0,0
 	mfspr	r3,SPRN_HID4
diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c
index 272e43622fd6..306da4cd37a0 100644
--- a/arch/powerpc/kernel/cputable.c
+++ b/arch/powerpc/kernel/cputable.c
@@ -39,7 +39,10 @@ extern void __setup_cpu_7400(unsigned long offset, struct cpu_spec* spec);
 extern void __setup_cpu_7410(unsigned long offset, struct cpu_spec* spec);
 extern void __setup_cpu_745x(unsigned long offset, struct cpu_spec* spec);
 #endif /* CONFIG_PPC32 */
+#ifdef CONFIG_PPC64
 extern void __setup_cpu_ppc970(unsigned long offset, struct cpu_spec* spec);
+extern void __restore_cpu_ppc970(void);
+#endif /* CONFIG_PPC64 */
 
 /* This table only contains "desktop" CPUs, it need to be filled with embedded
  * ones as well...
@@ -184,6 +187,7 @@ struct cpu_spec	cpu_specs[] = {
 		.dcache_bsize		= 128,
 		.num_pmcs		= 8,
 		.cpu_setup		= __setup_cpu_ppc970,
+		.cpu_restore		= __restore_cpu_ppc970,
 		.oprofile_cpu_type	= "ppc64/970",
 		.oprofile_type		= PPC_OPROFILE_POWER4,
 		.platform		= "ppc970",
@@ -199,6 +203,7 @@ struct cpu_spec	cpu_specs[] = {
 		.dcache_bsize		= 128,
 		.num_pmcs		= 8,
 		.cpu_setup		= __setup_cpu_ppc970,
+		.cpu_restore		= __restore_cpu_ppc970,
 		.oprofile_cpu_type	= "ppc64/970",
 		.oprofile_type		= PPC_OPROFILE_POWER4,
 		.platform		= "ppc970",
@@ -214,6 +219,7 @@ struct cpu_spec	cpu_specs[] = {
 		.dcache_bsize		= 128,
 		.num_pmcs		= 8,
 		.cpu_setup		= __setup_cpu_ppc970,
+		.cpu_restore		= __restore_cpu_ppc970,
 		.oprofile_cpu_type	= "ppc64/970",
 		.oprofile_type		= PPC_OPROFILE_POWER4,
 		.platform		= "ppc970",
diff --git a/arch/powerpc/kernel/head_64.S b/arch/powerpc/kernel/head_64.S
index 6ff3cf506088..e9963d9f335a 100644
--- a/arch/powerpc/kernel/head_64.S
+++ b/arch/powerpc/kernel/head_64.S
@@ -132,7 +132,7 @@ _GLOBAL(__secondary_hold)
 	bne	100b
 
 #if defined(CONFIG_SMP) || defined(CONFIG_KEXEC)
-	LOAD_REG_IMMEDIATE(r4, .pSeries_secondary_smp_init)
+	LOAD_REG_IMMEDIATE(r4, .generic_secondary_smp_init)
 	mtctr	r4
 	mr	r3,r24
 	bctr
@@ -1484,19 +1484,17 @@ fwnmi_data_area:
         . = 0x8000
 
 /*
- * On pSeries, secondary processors spin in the following code.
+ * On pSeries and most other platforms, secondary processors spin
+ * in the following code.
  * At entry, r3 = this processor's number (physical cpu id)
  */
-_GLOBAL(pSeries_secondary_smp_init)
+_GLOBAL(generic_secondary_smp_init)
 	mr	r24,r3
 	
 	/* turn on 64-bit mode */
 	bl	.enable_64b_mode
 	isync
 
-	/* Copy some CPU settings from CPU 0 */
-	bl	.__restore_cpu_setup
-
 	/* Set up a paca value for this processor. Since we have the
 	 * physical cpu id in r24, we need to search the pacas to find
 	 * which logical id maps to our physical one.
@@ -1522,15 +1520,28 @@ _GLOBAL(pSeries_secondary_smp_init)
 					/* start.			 */
 	sync
 
-	/* Create a temp kernel stack for use before relocation is on.	*/
+#ifndef CONFIG_SMP
+	b	3b			/* Never go on non-SMP		 */
+#else
+	cmpwi	0,r23,0
+	beq	3b			/* Loop until told to go	 */
+
+	/* See if we need to call a cpu state restore handler */
+	LOAD_REG_IMMEDIATE(r23, cur_cpu_spec)
+	ld	r23,0(r23)
+	ld	r23,CPU_SPEC_RESTORE(r23)
+	cmpdi	0,r23,0
+	beq	4f
+	ld	r23,0(r23)
+	mtctr	r23
+	bctrl
+
+4:	/* Create a temp kernel stack for use before relocation is on.	*/
 	ld	r1,PACAEMERGSP(r13)
 	subi	r1,r1,STACK_FRAME_OVERHEAD
 
-	cmpwi	0,r23,0
-#ifdef CONFIG_SMP
-	bne	.__secondary_start
+	b	.__secondary_start
 #endif
-	b 	3b			/* Loop until told to go	 */
 
 #ifdef CONFIG_PPC_ISERIES
 _STATIC(__start_initialization_iSeries)
@@ -1611,7 +1622,16 @@ _GLOBAL(__start_initialization_multiplatform)
 	bl	.enable_64b_mode
 
 	/* Setup some critical 970 SPRs before switching MMU off */
-	bl	.__970_cpu_preinit
+	mfspr	r0,SPRN_PVR
+	srwi	r0,r0,16
+	cmpwi	r0,0x39		/* 970 */
+	beq	1f
+	cmpwi	r0,0x3c		/* 970FX */
+	beq	1f
+	cmpwi	r0,0x44		/* 970MP */
+	bne	2f
+1:	bl	.__cpu_preinit_ppc970
+2:
 
 	/* Switch off MMU if not already */
 	LOAD_REG_IMMEDIATE(r4, .__after_prom_start - KERNELBASE)
@@ -1782,7 +1802,7 @@ _GLOBAL(pmac_secondary_start)
 	isync
 
 	/* Copy some CPU settings from CPU 0 */
-	bl	.__restore_cpu_setup
+	bl	.__restore_cpu_ppc970
 
 	/* pSeries do that early though I don't think we really need it */
 	mfmsr	r3
@@ -1932,12 +1952,6 @@ _STATIC(start_here_multiplatform)
 	mr	r5,r26
 	bl	.identify_cpu
 
-	/* Save some low level config HIDs of CPU0 to be copied to
-	 * other CPUs later on, or used for suspend/resume
-	 */
-	bl	.__save_cpu_setup
-	sync
-
 	/* Do very early kernel initializations, including initial hash table,
 	 * stab and slb setup before we turn on relocation.	*/
 
diff --git a/arch/powerpc/platforms/cell/smp.c b/arch/powerpc/platforms/cell/smp.c
index 46aef0640742..1c0acbad7425 100644
--- a/arch/powerpc/platforms/cell/smp.c
+++ b/arch/powerpc/platforms/cell/smp.c
@@ -57,7 +57,7 @@
  */
 static cpumask_t of_spin_map;
 
-extern void pSeries_secondary_smp_init(unsigned long);
+extern void generic_secondary_smp_init(unsigned long);
 
 /**
  * smp_startup_cpu() - start the given cpu
@@ -74,7 +74,7 @@ static inline int __devinit smp_startup_cpu(unsigned int lcpu)
 {
 	int status;
 	unsigned long start_here = __pa((u32)*((unsigned long *)
-					       pSeries_secondary_smp_init));
+					       generic_secondary_smp_init));
 	unsigned int pcpu;
 	int start_cpu;
 
diff --git a/arch/powerpc/platforms/pseries/smp.c b/arch/powerpc/platforms/pseries/smp.c
index f39dad8b99e0..c6624b8a0e77 100644
--- a/arch/powerpc/platforms/pseries/smp.c
+++ b/arch/powerpc/platforms/pseries/smp.c
@@ -62,7 +62,7 @@
  */
 static cpumask_t of_spin_map;
 
-extern void pSeries_secondary_smp_init(unsigned long);
+extern void generic_secondary_smp_init(unsigned long);
 
 #ifdef CONFIG_HOTPLUG_CPU
 
@@ -270,7 +270,7 @@ static inline int __devinit smp_startup_cpu(unsigned int lcpu)
 {
 	int status;
 	unsigned long start_here = __pa((u32)*((unsigned long *)
-					       pSeries_secondary_smp_init));
+					       generic_secondary_smp_init));
 	unsigned int pcpu;
 	int start_cpu;
 
diff --git a/include/asm-powerpc/cputable.h b/include/asm-powerpc/cputable.h
index 1ba3c9983614..748bc1805da9 100644
--- a/include/asm-powerpc/cputable.h
+++ b/include/asm-powerpc/cputable.h
@@ -36,6 +36,7 @@
 struct cpu_spec;
 
 typedef	void (*cpu_setup_t)(unsigned long offset, struct cpu_spec* spec);
+typedef	void (*cpu_restore_t)(void);
 
 enum powerpc_oprofile_type {
 	PPC_OPROFILE_INVALID = 0,
@@ -65,6 +66,8 @@ struct cpu_spec {
 	 * BHT, SPD, etc... from head.S before branching to identify_machine
 	 */
 	cpu_setup_t	cpu_setup;
+	/* Used to restore cpu setup on secondary processors and at resume */
+	cpu_restore_t	cpu_restore;
 
 	/* Used by oprofile userspace to select the right counters */
 	char		*oprofile_cpu_type;
-- 
cgit v1.2.3


From 869d7f381e8c32de85ddfa9621125fb10a885f87 Mon Sep 17 00:00:00 2001
From: Jon Loeliger <jdl@freescale.com>
Date: Tue, 15 Aug 2006 16:19:02 -0500
Subject: [POWERPC] Allow MPC8641 HPCN to build with CONFIG_PCI disabled too.

Signed-off-by: Jon Loeliger <jdl@freescale.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
---
 arch/powerpc/platforms/86xx/mpc86xx_hpcn.c | 9 +++++++--
 arch/powerpc/platforms/86xx/pci.c          | 3 ++-
 include/asm-powerpc/mpc86xx.h              | 2 --
 3 files changed, 9 insertions(+), 5 deletions(-)

(limited to 'include')

diff --git a/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c b/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c
index 4a33d95e7ad7..496cc7c3a54c 100644
--- a/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c
+++ b/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c
@@ -52,6 +52,7 @@ unsigned long pci_dram_offset = 0;
 #endif
 
 
+#ifdef CONFIG_PCI
 static void mpc86xx_8259_cascade(unsigned int irq, struct irq_desc *desc,
 				 struct pt_regs *regs)
 {
@@ -60,14 +61,18 @@ static void mpc86xx_8259_cascade(unsigned int irq, struct irq_desc *desc,
 		generic_handle_irq(cascade_irq, regs);
 	desc->chip->eoi(irq);
 }
+#endif	/* CONFIG_PCI */
 
 void __init
 mpc86xx_hpcn_init_irq(void)
 {
 	struct mpic *mpic1;
-	struct device_node *np, *cascade_node = NULL;
-	int cascade_irq;
+	struct device_node *np;
 	phys_addr_t openpic_paddr;
+#ifdef CONFIG_PCI
+	struct device_node *cascade_node = NULL;
+	int cascade_irq;
+#endif
 
 	np = of_find_node_by_type(NULL, "open-pic");
 	if (np == NULL)
diff --git a/arch/powerpc/platforms/86xx/pci.c b/arch/powerpc/platforms/86xx/pci.c
index d7050c1108ff..481e18ed5be9 100644
--- a/arch/powerpc/platforms/86xx/pci.c
+++ b/arch/powerpc/platforms/86xx/pci.c
@@ -188,7 +188,8 @@ int __init add_bridge(struct device_node *dev)
 
 	printk(KERN_INFO "Found MPC86xx PCIE host bridge at 0x%08lx. "
 	       "Firmware bus number: %d->%d\n",
-		rsrc.start, hose->first_busno, hose->last_busno);
+	       (unsigned long) rsrc.start,
+	       hose->first_busno, hose->last_busno);
 
 	DBG(" ->Hose at 0x%p, cfg_addr=0x%p,cfg_data=0x%p\n",
 		hose, hose->cfg_addr, hose->cfg_data);
diff --git a/include/asm-powerpc/mpc86xx.h b/include/asm-powerpc/mpc86xx.h
index f260382739fa..2d6ad859df7f 100644
--- a/include/asm-powerpc/mpc86xx.h
+++ b/include/asm-powerpc/mpc86xx.h
@@ -23,8 +23,6 @@
 #define _ISA_MEM_BASE   isa_mem_base
 #ifdef CONFIG_PCI
 #define PCI_DRAM_OFFSET pci_dram_offset
-#else
-#define PCI_DRAM_OFFSET 0
 #endif
 
 #define CPU0_BOOT_RELEASE 0x01000000
-- 
cgit v1.2.3


From 6f3d5d3cc4b1447578ae8484166bbc34a64150c5 Mon Sep 17 00:00:00 2001
From: Michael Ellerman <michael@ellerman.id.au>
Date: Wed, 16 Aug 2006 22:04:14 +1000
Subject: [POWERPC] Add a helper for calculating RTAS "config_addr" parameters

Several RTAS calls take a "config_addr" parameter, which is a particular
way of specifying a PCI busno, devfn and register number into a 32-bit word.
Currently these are open-coded, and I'll be adding another soon, replace
them with a helper that encapsulates the logic. Be more strict about masking
the busno too, just in case.

Booted on P5 LPAR.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
---
 arch/powerpc/kernel/rtas_pci.c |  6 ++----
 include/asm-powerpc/rtas.h     | 16 ++++++++++++++++
 2 files changed, 18 insertions(+), 4 deletions(-)

(limited to 'include')

diff --git a/arch/powerpc/kernel/rtas_pci.c b/arch/powerpc/kernel/rtas_pci.c
index 5a798ac6aecf..b4a0de79c060 100644
--- a/arch/powerpc/kernel/rtas_pci.c
+++ b/arch/powerpc/kernel/rtas_pci.c
@@ -81,8 +81,7 @@ int rtas_read_config(struct pci_dn *pdn, int where, int size, u32 *val)
 	if (!config_access_valid(pdn, where))
 		return PCIBIOS_BAD_REGISTER_NUMBER;
 
-	addr = ((where & 0xf00) << 20) | (pdn->busno << 16) |
-		(pdn->devfn << 8) | (where & 0xff);
+	addr = rtas_config_addr(pdn->busno, pdn->devfn, where);
 	buid = pdn->phb->buid;
 	if (buid) {
 		ret = rtas_call(ibm_read_pci_config, 4, 2, &returnval,
@@ -134,8 +133,7 @@ int rtas_write_config(struct pci_dn *pdn, int where, int size, u32 val)
 	if (!config_access_valid(pdn, where))
 		return PCIBIOS_BAD_REGISTER_NUMBER;
 
-	addr = ((where & 0xf00) << 20) | (pdn->busno << 16) |
-		(pdn->devfn << 8) | (where & 0xff);
+	addr = rtas_config_addr(pdn->busno, pdn->devfn, where);
 	buid = pdn->phb->buid;
 	if (buid) {
 		ret = rtas_call(ibm_write_pci_config, 5, 1, NULL, addr,
diff --git a/include/asm-powerpc/rtas.h b/include/asm-powerpc/rtas.h
index 82a27e9a041f..d34f9e1f242c 100644
--- a/include/asm-powerpc/rtas.h
+++ b/include/asm-powerpc/rtas.h
@@ -230,5 +230,21 @@ extern unsigned long rtas_rmo_buf;
 
 #define GLOBAL_INTERRUPT_QUEUE 9005
 
+/**
+ * rtas_config_addr - Format a busno, devfn and reg for RTAS.
+ * @busno: The bus number.
+ * @devfn: The device and function number as encoded by PCI_DEVFN().
+ * @reg: The register number.
+ *
+ * This function encodes the given busno, devfn and register number as
+ * required for RTAS calls that take a "config_addr" parameter.
+ * See PAPR requirement 7.3.4-1 for more info.
+ */
+static inline u32 rtas_config_addr(int busno, int devfn, int reg)
+{
+	return ((reg & 0xf00) << 20) | ((busno & 0xff) << 16) |
+			(devfn << 8) | (reg & 0xff);
+}
+
 #endif /* __KERNEL__ */
 #endif /* _POWERPC_RTAS_H */
-- 
cgit v1.2.3


From 0024300000769eadcb4a4fcdff531d45ee7735d4 Mon Sep 17 00:00:00 2001
From: Olof Johansson <olof@lixom.net>
Date: Wed, 6 Sep 2006 14:35:19 -0500
Subject: [POWERPC] powerpc: Divorce CPU_FTR_CTRL from
 CPU_FTR_PPCAS_ARCH_V2_BASE

The performance monitor implementation (including CTRL register behaviour)
is just included in PPC v2 as an example, it's not truly part of the base.

It's actually a somewhat misleading feature, but I'll leave that be for
now: The presence of the register is not what the feature bit is used
for, but instead it's used to determine if it contains the runlatch
bit for idle reporting of the performance monitor. For alternative
implementations, the register might still exist but the bit might have
different meaning (or no meaning at all).

For now, split it off and don't include it in CPU_FTR_PPCAS_ARCH_V2_BASE.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
---
 include/asm-powerpc/cputable.h | 15 ++++++++-------
 1 file changed, 8 insertions(+), 7 deletions(-)

(limited to 'include')

diff --git a/include/asm-powerpc/cputable.h b/include/asm-powerpc/cputable.h
index 748bc1805da9..3608259c49cf 100644
--- a/include/asm-powerpc/cputable.h
+++ b/include/asm-powerpc/cputable.h
@@ -148,7 +148,7 @@ extern void do_cpu_ftr_fixups(unsigned long offset);
 
 #define CPU_FTR_PPCAS_ARCH_V2_BASE (CPU_FTR_SLB | \
 					CPU_FTR_TLBIEL | CPU_FTR_NOEXECUTE | \
-					CPU_FTR_NODSISRALIGN | CPU_FTR_CTRL)
+					CPU_FTR_NODSISRALIGN)
 
 /* iSeries doesn't support large pages */
 #ifdef CONFIG_PPC_ISERIES
@@ -313,24 +313,25 @@ extern void do_cpu_ftr_fixups(unsigned long offset);
 	    CPU_FTR_HPTE_TABLE | CPU_FTR_IABR | \
 	    CPU_FTR_MMCRA | CPU_FTR_CTRL)
 #define CPU_FTRS_POWER4	(CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_USE_TB | \
-	    CPU_FTR_HPTE_TABLE | CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_MMCRA)
+	    CPU_FTR_HPTE_TABLE | CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_CTRL | \
+	    CPU_FTR_MMCRA)
 #define CPU_FTRS_PPC970	(CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_USE_TB | \
-	    CPU_FTR_HPTE_TABLE | CPU_FTR_PPCAS_ARCH_V2 | \
+	    CPU_FTR_HPTE_TABLE | CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_CTRL | \
 	    CPU_FTR_ALTIVEC_COMP | CPU_FTR_CAN_NAP | CPU_FTR_MMCRA)
 #define CPU_FTRS_POWER5	(CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_USE_TB | \
-	    CPU_FTR_HPTE_TABLE | CPU_FTR_PPCAS_ARCH_V2 | \
+	    CPU_FTR_HPTE_TABLE | CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_CTRL | \
 	    CPU_FTR_MMCRA | CPU_FTR_SMT | \
 	    CPU_FTR_COHERENT_ICACHE | CPU_FTR_LOCKLESS_TLBIE | \
 	    CPU_FTR_PURR)
 #define CPU_FTRS_POWER6 (CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_USE_TB | \
-	    CPU_FTR_HPTE_TABLE | CPU_FTR_PPCAS_ARCH_V2 | \
+	    CPU_FTR_HPTE_TABLE | CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_CTRL | \
 	    CPU_FTR_MMCRA | CPU_FTR_SMT | \
 	    CPU_FTR_COHERENT_ICACHE | CPU_FTR_LOCKLESS_TLBIE | \
 	    CPU_FTR_PURR | CPU_FTR_CI_LARGE_PAGE | CPU_FTR_REAL_LE)
 #define CPU_FTRS_CELL	(CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_USE_TB | \
-	    CPU_FTR_HPTE_TABLE | CPU_FTR_PPCAS_ARCH_V2 | \
+	    CPU_FTR_HPTE_TABLE | CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_CTRL | \
 	    CPU_FTR_ALTIVEC_COMP | CPU_FTR_MMCRA | CPU_FTR_SMT | \
-	    CPU_FTR_CTRL | CPU_FTR_PAUSE_ZERO | CPU_FTR_CI_LARGE_PAGE)
+	    CPU_FTR_PAUSE_ZERO | CPU_FTR_CI_LARGE_PAGE)
 #define CPU_FTRS_COMPATIBLE	(CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_USE_TB | \
 	    CPU_FTR_HPTE_TABLE | CPU_FTR_PPCAS_ARCH_V2)
 #endif
-- 
cgit v1.2.3


From b3ebd1d862d6c23caa58e40d341eefc426f835e1 Mon Sep 17 00:00:00 2001
From: Olof Johansson <olof@lixom.net>
Date: Wed, 6 Sep 2006 14:35:57 -0500
Subject: [POWERPC] powerpc: PA6T cputable entry, PVR value

Introduce PWRficient PA6T cputable entries and feature bits.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
---
 arch/powerpc/kernel/cputable.c | 14 ++++++++++++++
 include/asm-powerpc/cputable.h |  9 +++++++--
 include/asm-powerpc/reg.h      |  1 +
 3 files changed, 22 insertions(+), 2 deletions(-)

(limited to 'include')

diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c
index 306da4cd37a0..db65c9f6559a 100644
--- a/arch/powerpc/kernel/cputable.c
+++ b/arch/powerpc/kernel/cputable.c
@@ -58,6 +58,9 @@ extern void __restore_cpu_ppc970(void);
 #define COMMON_USER_POWER6	(COMMON_USER_PPC64 | PPC_FEATURE_ARCH_2_05 |\
 				 PPC_FEATURE_SMT | PPC_FEATURE_ICACHE_SNOOP | \
 				 PPC_FEATURE_TRUE_LE)
+#define COMMON_USER_PA6T	(COMMON_USER_PPC64 | PPC_FEATURE_PA6T |\
+				 PPC_FEATURE_TRUE_LE | \
+				 PPC_FEATURE_HAS_ALTIVEC_COMP)
 #define COMMON_USER_BOOKE	(PPC_FEATURE_32 | PPC_FEATURE_HAS_MMU | \
 				 PPC_FEATURE_BOOKE)
 
@@ -286,6 +289,17 @@ struct cpu_spec	cpu_specs[] = {
 		.dcache_bsize		= 128,
 		.platform		= "ppc-cell-be",
 	},
+	{	/* PA Semi PA6T */
+		.pvr_mask		= 0x7fff0000,
+		.pvr_value		= 0x00900000,
+		.cpu_name		= "PA6T",
+		.cpu_features		= CPU_FTRS_PA6T,
+		.cpu_user_features	= COMMON_USER_PA6T,
+		.icache_bsize		= 64,
+		.dcache_bsize		= 64,
+		.num_pmcs		= 6,
+		.platform		= "pa6t",
+	},
 	{	/* default match */
 		.pvr_mask		= 0x00000000,
 		.pvr_value		= 0x00000000,
diff --git a/include/asm-powerpc/cputable.h b/include/asm-powerpc/cputable.h
index 3608259c49cf..12707ab9dc98 100644
--- a/include/asm-powerpc/cputable.h
+++ b/include/asm-powerpc/cputable.h
@@ -23,6 +23,7 @@
 #define PPC_FEATURE_SMT			0x00004000
 #define PPC_FEATURE_ICACHE_SNOOP	0x00002000
 #define PPC_FEATURE_ARCH_2_05		0x00001000
+#define PPC_FEATURE_PA6T		0x00000800
 
 #define PPC_FEATURE_TRUE_LE		0x00000002
 #define PPC_FEATURE_PPC_LE		0x00000001
@@ -332,6 +333,10 @@ extern void do_cpu_ftr_fixups(unsigned long offset);
 	    CPU_FTR_HPTE_TABLE | CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_CTRL | \
 	    CPU_FTR_ALTIVEC_COMP | CPU_FTR_MMCRA | CPU_FTR_SMT | \
 	    CPU_FTR_PAUSE_ZERO | CPU_FTR_CI_LARGE_PAGE)
+#define CPU_FTRS_PA6T (CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_USE_TB | \
+	    CPU_FTR_HPTE_TABLE | CPU_FTR_PPCAS_ARCH_V2 | \
+	    CPU_FTR_ALTIVEC_COMP | CPU_FTR_CI_LARGE_PAGE | \
+	    CPU_FTR_PURR | CPU_FTR_REAL_LE)
 #define CPU_FTRS_COMPATIBLE	(CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_USE_TB | \
 	    CPU_FTR_HPTE_TABLE | CPU_FTR_PPCAS_ARCH_V2)
 #endif
@@ -340,7 +345,7 @@ extern void do_cpu_ftr_fixups(unsigned long offset);
 #define CPU_FTRS_POSSIBLE	\
 	    (CPU_FTRS_POWER3 | CPU_FTRS_RS64 | CPU_FTRS_POWER4 |	\
 	    CPU_FTRS_PPC970 | CPU_FTRS_POWER5 | CPU_FTRS_POWER6 |	\
-	    CPU_FTRS_CELL | CPU_FTR_CI_LARGE_PAGE)
+	    CPU_FTRS_CELL | CPU_FTRS_PA6T)
 #else
 enum {
 	CPU_FTRS_POSSIBLE =
@@ -379,7 +384,7 @@ enum {
 #define CPU_FTRS_ALWAYS		\
 	    (CPU_FTRS_POWER3 & CPU_FTRS_RS64 & CPU_FTRS_POWER4 &	\
 	    CPU_FTRS_PPC970 & CPU_FTRS_POWER5 & CPU_FTRS_POWER6 &	\
-	    CPU_FTRS_CELL & CPU_FTRS_POSSIBLE)
+	    CPU_FTRS_CELL & CPU_FTRS_PA6T & CPU_FTRS_POSSIBLE)
 #else
 enum {
 	CPU_FTRS_ALWAYS =
diff --git a/include/asm-powerpc/reg.h b/include/asm-powerpc/reg.h
index cf73475a0c69..3a9fcc15811b 100644
--- a/include/asm-powerpc/reg.h
+++ b/include/asm-powerpc/reg.h
@@ -592,6 +592,7 @@
 #define PV_630p	0x0041
 #define PV_970MP	0x0044
 #define PV_BE		0x0070
+#define PV_PA6T		0x0090
 
 /*
  * Number of entries in the SLB. If this ever changes we should handle
-- 
cgit v1.2.3


From 57852a853b0d6761f270be0961d5d8387e98c8bb Mon Sep 17 00:00:00 2001
From: Mike Kravetz <kravetz@us.ibm.com>
Date: Wed, 6 Sep 2006 16:23:12 -0700
Subject: [POWERPC] powerpc: Instrument Hypervisor Calls

Add instrumentation for hypervisor calls on pseries.  Call statistics
include number of calls, wall time and cpu cycles (if available) and
are made available via debugfs.  Instrumentation code is behind the
HCALL_STATS config option and has no impact if not enabled.

Signed-off-by: Mike Kravetz <kravetz@us.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
---
 arch/powerpc/Kconfig.debug                   |  14 +++
 arch/powerpc/kernel/asm-offsets.c            |   7 ++
 arch/powerpc/platforms/pseries/Makefile      |   1 +
 arch/powerpc/platforms/pseries/hvCall.S      |  72 +++++++++++++++
 arch/powerpc/platforms/pseries/hvCall_inst.c | 129 +++++++++++++++++++++++++++
 include/asm-powerpc/hvcall.h                 |  12 ++-
 6 files changed, 234 insertions(+), 1 deletion(-)
 create mode 100644 arch/powerpc/platforms/pseries/hvCall_inst.c

(limited to 'include')

diff --git a/arch/powerpc/Kconfig.debug b/arch/powerpc/Kconfig.debug
index e29ef77d3b00..d7b2aedd89aa 100644
--- a/arch/powerpc/Kconfig.debug
+++ b/arch/powerpc/Kconfig.debug
@@ -18,6 +18,20 @@ config DEBUG_STACK_USAGE
 
 	  This option will slow down process creation somewhat.
 
+config HCALL_STATS
+	bool "Hypervisor call instrumentation"
+	depends on PPC_PSERIES && DEBUG_FS
+	help
+	  Adds code to keep track of the number of hypervisor calls made and
+	  the amount of time spent in hypervisor callsr.  Wall time spent in
+	  each call is always calculated, and if available CPU cycles spent
+	  are also calculated.  A directory named hcall_inst is added at the
+	  root of the debugfs filesystem.  Within the hcall_inst directory
+	  are files that contain CPU specific call statistics.
+
+	  This option will add a small amount of overhead to all hypervisor
+	  calls.
+
 config DEBUGGER
 	bool "Enable debugger hooks"
 	depends on DEBUG_KERNEL
diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c
index c53acd2a6dfc..c578e7ab8173 100644
--- a/arch/powerpc/kernel/asm-offsets.c
+++ b/arch/powerpc/kernel/asm-offsets.c
@@ -137,6 +137,7 @@ int main(void)
 	DEFINE(PACA_USER_TIME, offsetof(struct paca_struct, user_time));
 	DEFINE(PACA_SYSTEM_TIME, offsetof(struct paca_struct, system_time));
 	DEFINE(PACA_SLBSHADOWPTR, offsetof(struct paca_struct, slb_shadow_ptr));
+	DEFINE(PACA_DATA_OFFSET, offsetof(struct paca_struct, data_offset));
 
 	DEFINE(SLBSHADOW_STACKVSID,
 	       offsetof(struct slb_shadow, save_area[SLB_NUM_BOLTED - 1].vsid));
@@ -165,6 +166,12 @@ int main(void)
 	/* Create extra stack space for SRR0 and SRR1 when calling prom/rtas. */
 	DEFINE(PROM_FRAME_SIZE, STACK_FRAME_OVERHEAD + sizeof(struct pt_regs) + 16);
 	DEFINE(RTAS_FRAME_SIZE, STACK_FRAME_OVERHEAD + sizeof(struct pt_regs) + 16);
+
+	/* hcall statistics */
+	DEFINE(HCALL_STAT_SIZE, sizeof(struct hcall_stats));
+	DEFINE(HCALL_STAT_CALLS, offsetof(struct hcall_stats, num_calls));
+	DEFINE(HCALL_STAT_TB, offsetof(struct hcall_stats, tb_total));
+	DEFINE(HCALL_STAT_PURR, offsetof(struct hcall_stats, purr_total));
 #endif /* CONFIG_PPC64 */
 	DEFINE(GPR0, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[0]));
 	DEFINE(GPR1, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[1]));
diff --git a/arch/powerpc/platforms/pseries/Makefile b/arch/powerpc/platforms/pseries/Makefile
index e5e0ff466904..997243a91be8 100644
--- a/arch/powerpc/platforms/pseries/Makefile
+++ b/arch/powerpc/platforms/pseries/Makefile
@@ -12,3 +12,4 @@ obj-$(CONFIG_EEH)	+= eeh.o eeh_cache.o eeh_driver.o eeh_event.o
 
 obj-$(CONFIG_HVC_CONSOLE)	+= hvconsole.o
 obj-$(CONFIG_HVCS)		+= hvcserver.o
+obj-$(CONFIG_HCALL_STATS)	+= hvCall_inst.o
diff --git a/arch/powerpc/platforms/pseries/hvCall.S b/arch/powerpc/platforms/pseries/hvCall.S
index 9a99b056bd27..c00cfed7af2c 100644
--- a/arch/powerpc/platforms/pseries/hvCall.S
+++ b/arch/powerpc/platforms/pseries/hvCall.S
@@ -10,9 +10,69 @@
 #include <asm/hvcall.h>
 #include <asm/processor.h>
 #include <asm/ppc_asm.h>
+#include <asm/asm-offsets.h>
 	
 #define STK_PARM(i)     (48 + ((i)-3)*8)
 
+#ifdef CONFIG_HCALL_STATS
+/*
+ * precall must preserve all registers.  use unused STK_PARM()
+ * areas to save snapshots and opcode.
+ */
+#define HCALL_INST_PRECALL					\
+	std	r3,STK_PARM(r3)(r1);	/* save opcode */	\
+	mftb	r0;			/* get timebase and */	\
+	std     r0,STK_PARM(r5)(r1);	/* save for later */	\
+BEGIN_FTR_SECTION;						\
+	mfspr	r0,SPRN_PURR;		/* get PURR and */	\
+	std	r0,STK_PARM(r6)(r1);	/* save for later */	\
+END_FTR_SECTION_IFCLR(CPU_FTR_PURR);
+	
+/*
+ * postcall is performed immediately before function return which
+ * allows liberal use of volatile registers.
+ */
+#define HCALL_INST_POSTCALL					\
+	ld	r4,STK_PARM(r3)(r1);	/* validate opcode */	\
+	cmpldi	cr7,r4,MAX_HCALL_OPCODE;			\
+	bgt-	cr7,1f;						\
+								\
+	/* get time and PURR snapshots after hcall */		\
+	mftb	r7;			/* timebase after */	\
+BEGIN_FTR_SECTION;						\
+	mfspr	r8,SPRN_PURR;		/* PURR after */	\
+	ld	r6,STK_PARM(r6)(r1);	/* PURR before */	\
+	subf	r6,r6,r8;		/* delta */		\
+END_FTR_SECTION_IFCLR(CPU_FTR_PURR);				\
+	ld	r5,STK_PARM(r5)(r1);	/* timebase before */	\
+	subf	r5,r5,r7;		/* time delta */	\
+								\
+	/* calculate address of stat structure r4 = opcode */	\
+	srdi	r4,r4,2;		/* index into array */	\
+	mulli	r4,r4,HCALL_STAT_SIZE;				\
+	LOAD_REG_ADDR(r7, per_cpu__hcall_stats);		\
+	add	r4,r4,r7;					\
+	ld	r7,PACA_DATA_OFFSET(r13); /* per cpu offset */	\
+	add	r4,r4,r7;					\
+								\
+	/* update stats	*/					\
+	ld	r7,HCALL_STAT_CALLS(r4); /* count */		\
+	addi	r7,r7,1;					\
+	std	r7,HCALL_STAT_CALLS(r4);			\
+	ld      r7,HCALL_STAT_TB(r4);	/* timebase */		\
+	add	r7,r7,r5;					\
+	std	r7,HCALL_STAT_TB(r4);				\
+BEGIN_FTR_SECTION;						\
+	ld	r7,HCALL_STAT_PURR(r4);	/* PURR */		\
+	add	r7,r7,r6;					\
+	std	r7,HCALL_STAT_PURR(r4);				\
+END_FTR_SECTION_IFCLR(CPU_FTR_PURR);				\
+1:
+#else
+#define HCALL_INST_PRECALL
+#define HCALL_INST_POSTCALL
+#endif
+
 	.text
 
 _GLOBAL(plpar_hcall_norets)
@@ -21,8 +81,12 @@ _GLOBAL(plpar_hcall_norets)
 	mfcr	r0
 	stw	r0,8(r1)
 
+	HCALL_INST_PRECALL
+
 	HVSC				/* invoke the hypervisor */
 
+	HCALL_INST_POSTCALL
+
 	lwz	r0,8(r1)
 	mtcrf	0xff,r0
 	blr				/* return r3 = status */
@@ -33,6 +97,8 @@ _GLOBAL(plpar_hcall)
 	mfcr	r0
 	stw	r0,8(r1)
 
+	HCALL_INST_PRECALL
+
 	std     r4,STK_PARM(r4)(r1)     /* Save ret buffer */
 
 	mr	r4,r5
@@ -50,6 +116,8 @@ _GLOBAL(plpar_hcall)
 	std	r6, 16(r12)
 	std	r7, 24(r12)
 
+	HCALL_INST_POSTCALL
+
 	lwz	r0,8(r1)
 	mtcrf	0xff,r0
 
@@ -61,6 +129,8 @@ _GLOBAL(plpar_hcall9)
 	mfcr	r0
 	stw	r0,8(r1)
 
+	HCALL_INST_PRECALL
+
 	std     r4,STK_PARM(r4)(r1)     /* Save ret buffer */
 
 	mr	r4,r5
@@ -86,6 +156,8 @@ _GLOBAL(plpar_hcall9)
 	std	r11,56(r12)
 	std	r12,64(r12)
 
+	HCALL_INST_POSTCALL
+
 	lwz	r0,8(r1)
 	mtcrf	0xff,r0
 
diff --git a/arch/powerpc/platforms/pseries/hvCall_inst.c b/arch/powerpc/platforms/pseries/hvCall_inst.c
new file mode 100644
index 000000000000..641e6511cf06
--- /dev/null
+++ b/arch/powerpc/platforms/pseries/hvCall_inst.c
@@ -0,0 +1,129 @@
+/*
+ * Copyright (C) 2006 Mike Kravetz IBM Corporation
+ *
+ * Hypervisor Call Instrumentation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ */
+
+#include <linux/kernel.h>
+#include <linux/percpu.h>
+#include <linux/debugfs.h>
+#include <linux/seq_file.h>
+#include <linux/cpumask.h>
+#include <asm/hvcall.h>
+#include <asm/firmware.h>
+#include <asm/cputable.h>
+
+DEFINE_PER_CPU(struct hcall_stats[HCALL_STAT_ARRAY_SIZE], hcall_stats);
+
+/*
+ * Routines for displaying the statistics in debugfs
+ */
+static void *hc_start(struct seq_file *m, loff_t *pos)
+{
+	if ((int)*pos < HCALL_STAT_ARRAY_SIZE)
+		return (void *)(unsigned long)(*pos + 1);
+
+	return NULL;
+}
+
+static void *hc_next(struct seq_file *m, void *p, loff_t * pos)
+{
+	++*pos;
+
+	return hc_start(m, pos);
+}
+
+static void hc_stop(struct seq_file *m, void *p)
+{
+}
+
+static int hc_show(struct seq_file *m, void *p)
+{
+	unsigned long h_num = (unsigned long)p;
+	struct hcall_stats *hs = (struct hcall_stats *)m->private;
+
+	if (hs[h_num].num_calls) {
+		if (!cpu_has_feature(CPU_FTR_PURR))
+			seq_printf(m, "%lu %lu %lu %lu\n", h_num<<2,
+				   hs[h_num].num_calls,
+				   hs[h_num].tb_total,
+				   hs[h_num].purr_total);
+		else
+			seq_printf(m, "%lu %lu %lu\n", h_num<<2,
+				   hs[h_num].num_calls,
+				   hs[h_num].tb_total);
+	}
+
+	return 0;
+}
+
+static struct seq_operations hcall_inst_seq_ops = {
+        .start = hc_start,
+        .next  = hc_next,
+        .stop  = hc_stop,
+        .show  = hc_show
+};
+
+static int hcall_inst_seq_open(struct inode *inode, struct file *file)
+{
+	int rc;
+	struct seq_file *seq;
+
+	rc = seq_open(file, &hcall_inst_seq_ops);
+	seq = file->private_data;
+	seq->private = file->f_dentry->d_inode->u.generic_ip;
+
+	return rc;
+}
+
+static struct file_operations hcall_inst_seq_fops = {
+	.open = hcall_inst_seq_open,
+	.read = seq_read,
+	.llseek = seq_lseek,
+	.release = seq_release,
+};
+
+#define	HCALL_ROOT_DIR		"hcall_inst"
+#define CPU_NAME_BUF_SIZE	32
+
+static int __init hcall_inst_init(void)
+{
+	struct dentry *hcall_root;
+	struct dentry *hcall_file;
+	char cpu_name_buf[CPU_NAME_BUF_SIZE];
+	int cpu;
+
+	if (!firmware_has_feature(FW_FEATURE_LPAR))
+		return 0;
+
+	hcall_root = debugfs_create_dir(HCALL_ROOT_DIR, NULL);
+	if (!hcall_root)
+		return -ENOMEM;
+
+	for_each_possible_cpu(cpu) {
+		snprintf(cpu_name_buf, CPU_NAME_BUF_SIZE, "cpu%d", cpu);
+		hcall_file = debugfs_create_file(cpu_name_buf, S_IRUGO,
+						 hcall_root,
+						 per_cpu(hcall_stats, cpu),
+						 &hcall_inst_seq_fops);
+		if (!hcall_file)
+			return -ENOMEM;
+	}
+
+	return 0;
+}
+__initcall(hcall_inst_init);
diff --git a/include/asm-powerpc/hvcall.h b/include/asm-powerpc/hvcall.h
index 63ce1ac8c1f4..257d1cecb8c9 100644
--- a/include/asm-powerpc/hvcall.h
+++ b/include/asm-powerpc/hvcall.h
@@ -208,7 +208,7 @@
 #define H_JOIN			0x298
 #define H_VASI_STATE            0x2A4
 #define H_ENABLE_CRQ		0x2B0
-#define MAX_HCALL_OPCODES	(H_ENABLE_CRQ >> 2)
+#define MAX_HCALL_OPCODE	H_ENABLE_CRQ
 
 #ifndef __ASSEMBLY__
 
@@ -246,6 +246,16 @@ long plpar_hcall(unsigned long opcode, unsigned long *retbuf, ...);
 #define PLPAR_HCALL9_BUFSIZE 9
 long plpar_hcall9(unsigned long opcode, unsigned long *retbuf, ...);
 
+/* For hcall instrumentation.  One structure per-hcall, per-CPU */
+struct hcall_stats {
+	unsigned long	num_calls;	/* number of calls (on this CPU) */
+	unsigned long	tb_total;	/* total wall time (mftb) of calls. */
+	unsigned long	purr_total;	/* total cpu time (PURR) of calls. */
+};
+void update_hcall_stats(unsigned long opcode, unsigned long tb_delta,
+			unsigned long purr_delta);
+#define HCALL_STAT_ARRAY_SIZE	((MAX_HCALL_OPCODE >> 2) + 1)
+
 #endif /* __ASSEMBLY__ */
 #endif /* __KERNEL__ */
 #endif /* _ASM_POWERPC_HVCALL_H */
-- 
cgit v1.2.3


From fa053d2f008cb73fa768b8e171486d8c0b33312b Mon Sep 17 00:00:00 2001
From: Stephen Rothwell <sfr@canb.auug.org.au>
Date: Tue, 19 Sep 2006 14:51:40 +1000
Subject: [POWERPC] remove unused io accessors

The io accessors insw_ns, outsw_ns, insl_ns and outsl_ns are unused
(except for one unnecessary use in drivers/net/3c509.c that is addressed
in a previous patch) and are only defined in powerpc/ppc, so remove them.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
---
 arch/ppc/syslib/m8260_pci_erratum9.c | 16 ----------------
 include/asm-powerpc/io.h             | 13 +------------
 include/asm-ppc/io.h                 | 10 ----------
 include/asm-ppc/mpc8260_pci9.h       |  4 ----
 4 files changed, 1 insertion(+), 42 deletions(-)

(limited to 'include')

diff --git a/arch/ppc/syslib/m8260_pci_erratum9.c b/arch/ppc/syslib/m8260_pci_erratum9.c
index 974581ea4849..5475709ce07b 100644
--- a/arch/ppc/syslib/m8260_pci_erratum9.c
+++ b/arch/ppc/syslib/m8260_pci_erratum9.c
@@ -339,20 +339,6 @@ void insl(unsigned port, void *buf, int nl)
 	idma_pci9_read((u8 *)buf, (u8 *)addr, nl*sizeof(u32), sizeof(u32), 0);
 }
 
-void insw_ns(unsigned port, void *buf, int ns)
-{
-	u8 *addr = (u8 *)(port + _IO_BASE);
-
-	idma_pci9_read((u8 *)buf, (u8 *)addr, ns*sizeof(u16), sizeof(u16), 0);
-}
-
-void insl_ns(unsigned port, void *buf, int nl)
-{
-	u8 *addr = (u8 *)(port + _IO_BASE);
-
-	idma_pci9_read((u8 *)buf, (u8 *)addr, nl*sizeof(u32), sizeof(u32), 0);
-}
-
 void *memcpy_fromio(void *dest, unsigned long src, size_t count)
 {
 	unsigned long pa = iopa((unsigned long) src);
@@ -373,8 +359,6 @@ EXPORT_SYMBOL(inl);
 EXPORT_SYMBOL(insb);
 EXPORT_SYMBOL(insw);
 EXPORT_SYMBOL(insl);
-EXPORT_SYMBOL(insw_ns);
-EXPORT_SYMBOL(insl_ns);
 EXPORT_SYMBOL(memcpy_fromio);
 
 #endif	/* ifdef CONFIG_8260_PCI9 */
diff --git a/include/asm-powerpc/io.h b/include/asm-powerpc/io.h
index 212428db0d8b..9aaced542624 100644
--- a/include/asm-powerpc/io.h
+++ b/include/asm-powerpc/io.h
@@ -76,8 +76,7 @@ extern unsigned long pci_io_base;
 #define insb(port, buf, ns)	_insb((u8 __iomem *)((port)+pci_io_base), (buf), (ns))
 #define insw(port, buf, ns)	_insw_ns((u8 __iomem *)((port)+pci_io_base), (buf), (ns))
 #define insl(port, buf, nl)	_insl_ns((u8 __iomem *)((port)+pci_io_base), (buf), (nl))
-#define insw_ns(port, buf, ns)	_insw_ns((u16 __iomem *)((port)+pci_io_base), (buf), (ns))
-#define insl_ns(port, buf, nl)	_insl_ns((u32 __iomem *)((port)+pci_io_base), (buf), (nl))
+
 #else
 
 static inline unsigned char __raw_readb(const volatile void __iomem *addr)
@@ -138,8 +137,6 @@ static inline void __raw_writeq(unsigned long v, volatile void __iomem *addr)
 #define insb(port, buf, ns)	eeh_insb((port), (buf), (ns))
 #define insw(port, buf, ns)	eeh_insw_ns((port), (buf), (ns))
 #define insl(port, buf, nl)	eeh_insl_ns((port), (buf), (nl))
-#define insw_ns(port, buf, ns)	eeh_insw_ns((port), (buf), (ns))
-#define insl_ns(port, buf, nl)	eeh_insl_ns((port), (buf), (nl))
 
 #endif
 
@@ -180,14 +177,6 @@ static inline void mmiowb(void)
 #define inl_p(port)             inl(port)
 #define outl_p(val, port)       (udelay(1), outl((val), (port)))
 
-/*
- * The *_ns versions below don't do byte-swapping.
- * Neither do the standard versions now, these are just here
- * for older code.
- */
-#define outsw_ns(port, buf, ns)	_outsw_ns((u16 __iomem *)((port)+pci_io_base), (buf), (ns))
-#define outsl_ns(port, buf, nl)	_outsl_ns((u32 __iomem *)((port)+pci_io_base), (buf), (nl))
-
 
 #define IO_SPACE_LIMIT ~(0UL)
 
diff --git a/include/asm-ppc/io.h b/include/asm-ppc/io.h
index 680555be22ec..fb0a8fcc51cf 100644
--- a/include/asm-ppc/io.h
+++ b/include/asm-ppc/io.h
@@ -338,16 +338,6 @@ extern void _outsw_ns(volatile u16 __iomem *port, const void *buf, int ns);
 extern void _insl_ns(volatile u32 __iomem *port, void *buf, int nl);
 extern void _outsl_ns(volatile u32 __iomem *port, const void *buf, int nl);
 
-/*
- * The *_ns versions below don't do byte-swapping.
- * Neither do the standard versions now, these are just here
- * for older code.
- */
-#define insw_ns(port, buf, ns)	_insw_ns((port)+___IO_BASE, (buf), (ns))
-#define outsw_ns(port, buf, ns)	_outsw_ns((port)+___IO_BASE, (buf), (ns))
-#define insl_ns(port, buf, nl)	_insl_ns((port)+___IO_BASE, (buf), (nl))
-#define outsl_ns(port, buf, nl)	_outsl_ns((port)+___IO_BASE, (buf), (nl))
-
 
 #define IO_SPACE_LIMIT ~0
 
diff --git a/include/asm-ppc/mpc8260_pci9.h b/include/asm-ppc/mpc8260_pci9.h
index 26b3f6e787bc..9f7176881c56 100644
--- a/include/asm-ppc/mpc8260_pci9.h
+++ b/include/asm-ppc/mpc8260_pci9.h
@@ -30,8 +30,6 @@
 #undef inb
 #undef inw
 #undef inl
-#undef insw_ns
-#undef insl_ns
 #undef memcpy_fromio
 
 extern int readb(volatile unsigned char *addr);
@@ -43,8 +41,6 @@ extern void insl(unsigned port, void *buf, int nl);
 extern int inb(unsigned port);
 extern int inw(unsigned port);
 extern unsigned inl(unsigned port);
-extern void insw_ns(unsigned port, void *buf, int ns);
-extern void insl_ns(unsigned port, void *buf, int nl);
 extern void *memcpy_fromio(void *dest, unsigned long src, size_t count);
 
 #endif /* !__CONFIG_8260_PCI9_DEFS */
-- 
cgit v1.2.3


From 661f1cdb8b3e3c2c44e97df122c1d5643c054ce8 Mon Sep 17 00:00:00 2001
From: Stephen Rothwell <sfr@canb.auug.org.au>
Date: Tue, 19 Sep 2006 16:52:55 +1000
Subject: [POWERPC] remove unused asm routines

_insw, _outsw, _insl amd _outsl are all unused, so remove them.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
---
 arch/powerpc/kernel/misc.S      | 52 -------------------------
 arch/powerpc/kernel/ppc_ksyms.c |  4 --
 arch/ppc/kernel/misc.S          | 84 -----------------------------------------
 arch/ppc/kernel/ppc_ksyms.c     |  4 --
 include/asm-powerpc/io.h        |  4 --
 include/asm-ppc/io.h            |  4 --
 6 files changed, 152 deletions(-)

(limited to 'include')

diff --git a/arch/powerpc/kernel/misc.S b/arch/powerpc/kernel/misc.S
index f770805f1215..dd5f8e429196 100644
--- a/arch/powerpc/kernel/misc.S
+++ b/arch/powerpc/kernel/misc.S
@@ -86,58 +86,6 @@ _GLOBAL(_outsb)
 	sync
 	blr
 
-_GLOBAL(_insw)
-	sync
-	cmpwi	0,r5,0
-	mtctr	r5
-	subi	r4,r4,2
-	blelr-
-00:	lhbrx	r5,0,r3
-	eieio
-	sthu	r5,2(r4)
-	bdnz	00b
-	twi	0,r5,0
-	isync
-	blr
-
-_GLOBAL(_outsw)
-	cmpwi	0,r5,0
-	mtctr	r5
-	subi	r4,r4,2
-	blelr-
-	sync
-00:	lhzu	r5,2(r4)
-	sthbrx	r5,0,r3
-	bdnz	00b
-	sync
-	blr
-
-_GLOBAL(_insl)
-	sync
-	cmpwi	0,r5,0
-	mtctr	r5
-	subi	r4,r4,4
-	blelr-
-00:	lwbrx	r5,0,r3
-	eieio
-	stwu	r5,4(r4)
-	bdnz	00b
-	twi	0,r5,0
-	isync
-	blr
-
-_GLOBAL(_outsl)
-	cmpwi	0,r5,0
-	mtctr	r5
-	subi	r4,r4,4
-	blelr-
-	sync
-00:	lwzu	r5,4(r4)
-	stwbrx	r5,0,r3
-	bdnz	00b
-	sync
-	blr
-
 #ifdef CONFIG_PPC32
 _GLOBAL(__ide_mm_insw)
 #endif
diff --git a/arch/powerpc/kernel/ppc_ksyms.c b/arch/powerpc/kernel/ppc_ksyms.c
index b2edac8ddf0a..314d6114e6ec 100644
--- a/arch/powerpc/kernel/ppc_ksyms.c
+++ b/arch/powerpc/kernel/ppc_ksyms.c
@@ -104,10 +104,6 @@ EXPORT_SYMBOL(__ide_mm_outsl);
 
 EXPORT_SYMBOL(_insb);
 EXPORT_SYMBOL(_outsb);
-EXPORT_SYMBOL(_insw);
-EXPORT_SYMBOL(_outsw);
-EXPORT_SYMBOL(_insl);
-EXPORT_SYMBOL(_outsl);
 EXPORT_SYMBOL(_insw_ns);
 EXPORT_SYMBOL(_outsw_ns);
 EXPORT_SYMBOL(_insl_ns);
diff --git a/arch/ppc/kernel/misc.S b/arch/ppc/kernel/misc.S
index 2fa0075f2b5f..44700bbfe7bc 100644
--- a/arch/ppc/kernel/misc.S
+++ b/arch/ppc/kernel/misc.S
@@ -768,90 +768,6 @@ _GLOBAL(_outsb)
 	bdnz	00b
 	blr
 
-_GLOBAL(_insw)
-	cmpwi	0,r5,0
-	mtctr	r5
-	subi	r4,r4,2
-	blelr-
-00:	lhbrx	r5,0,r3
-01:	eieio
-02:	sthu	r5,2(r4)
-	ISYNC_8xx
-	.section .fixup,"ax"
-03:	blr
-	.text
-	.section __ex_table, "a"
-		.align 2
-		.long 00b, 03b
-		.long 01b, 03b
-		.long 02b, 03b
-	.text
-	bdnz	00b
-	blr
-
-_GLOBAL(_outsw)
-	cmpwi	0,r5,0
-	mtctr	r5
-	subi	r4,r4,2
-	blelr-
-00:	lhzu	r5,2(r4)
-01:	eieio
-02:	sthbrx	r5,0,r3
-	ISYNC_8xx
-	.section .fixup,"ax"
-03:	blr
-	.text
-	.section __ex_table, "a"
-		.align 2
-		.long 00b, 03b
-		.long 01b, 03b
-		.long 02b, 03b
-	.text
-	bdnz	00b
-	blr
-
-_GLOBAL(_insl)
-	cmpwi	0,r5,0
-	mtctr	r5
-	subi	r4,r4,4
-	blelr-
-00:	lwbrx	r5,0,r3
-01:	eieio
-02:	stwu	r5,4(r4)
-	ISYNC_8xx
-	.section .fixup,"ax"
-03:	blr
-	.text
-	.section __ex_table, "a"
-		.align 2
-		.long 00b, 03b
-		.long 01b, 03b
-		.long 02b, 03b
-	.text
-	bdnz	00b
-	blr
-
-_GLOBAL(_outsl)
-	cmpwi	0,r5,0
-	mtctr	r5
-	subi	r4,r4,4
-	blelr-
-00:	lwzu	r5,4(r4)
-01:	stwbrx	r5,0,r3
-02:	eieio
-	ISYNC_8xx
-	.section .fixup,"ax"
-03:	blr
-	.text
-	.section __ex_table, "a"
-		.align 2
-		.long 00b, 03b
-		.long 01b, 03b
-		.long 02b, 03b
-	.text
-	bdnz	00b
-	blr
-
 _GLOBAL(__ide_mm_insw)
 _GLOBAL(_insw_ns)
 	cmpwi	0,r5,0
diff --git a/arch/ppc/kernel/ppc_ksyms.c b/arch/ppc/kernel/ppc_ksyms.c
index d1735401384c..2bd1f7353f56 100644
--- a/arch/ppc/kernel/ppc_ksyms.c
+++ b/arch/ppc/kernel/ppc_ksyms.c
@@ -122,10 +122,6 @@ EXPORT_SYMBOL(__ide_mm_outsl);
 
 EXPORT_SYMBOL(_insb);
 EXPORT_SYMBOL(_outsb);
-EXPORT_SYMBOL(_insw);
-EXPORT_SYMBOL(_outsw);
-EXPORT_SYMBOL(_insl);
-EXPORT_SYMBOL(_outsl);
 EXPORT_SYMBOL(_insw_ns);
 EXPORT_SYMBOL(_outsw_ns);
 EXPORT_SYMBOL(_insl_ns);
diff --git a/include/asm-powerpc/io.h b/include/asm-powerpc/io.h
index 9aaced542624..0ee48436b1e3 100644
--- a/include/asm-powerpc/io.h
+++ b/include/asm-powerpc/io.h
@@ -151,10 +151,6 @@ static inline void __raw_writeq(unsigned long v, volatile void __iomem *addr)
 
 extern void _insb(volatile u8 __iomem *port, void *buf, int ns);
 extern void _outsb(volatile u8 __iomem *port, const void *buf, int ns);
-extern void _insw(volatile u16 __iomem *port, void *buf, int ns);
-extern void _outsw(volatile u16 __iomem *port, const void *buf, int ns);
-extern void _insl(volatile u32 __iomem *port, void *buf, int nl);
-extern void _outsl(volatile u32 __iomem *port, const void *buf, int nl);
 extern void _insw_ns(volatile u16 __iomem *port, void *buf, int ns);
 extern void _outsw_ns(volatile u16 __iomem *port, const void *buf, int ns);
 extern void _insl_ns(volatile u32 __iomem *port, void *buf, int nl);
diff --git a/include/asm-ppc/io.h b/include/asm-ppc/io.h
index fb0a8fcc51cf..9fac420f1648 100644
--- a/include/asm-ppc/io.h
+++ b/include/asm-ppc/io.h
@@ -329,10 +329,6 @@ __do_out_asm(outl, "stwbrx")
 
 extern void _insb(volatile u8 __iomem *port, void *buf, int ns);
 extern void _outsb(volatile u8 __iomem *port, const void *buf, int ns);
-extern void _insw(volatile u16 __iomem *port, void *buf, int ns);
-extern void _outsw(volatile u16 __iomem *port, const void *buf, int ns);
-extern void _insl(volatile u32 __iomem *port, void *buf, int nl);
-extern void _outsl(volatile u32 __iomem *port, const void *buf, int nl);
 extern void _insw_ns(volatile u16 __iomem *port, void *buf, int ns);
 extern void _outsw_ns(volatile u16 __iomem *port, const void *buf, int ns);
 extern void _insl_ns(volatile u32 __iomem *port, void *buf, int nl);
-- 
cgit v1.2.3


From 73ea9e1bcb8eea4f3b2052fe7ccd7ee4b5a271a0 Mon Sep 17 00:00:00 2001
From: Stephen Rothwell <sfr@canb.auug.org.au>
Date: Tue, 19 Sep 2006 17:30:20 +1000
Subject: [POWERPC] clean up ide io accessors

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
---
 arch/powerpc/kernel/misc.S      | 12 ------------
 arch/powerpc/kernel/ppc_ksyms.c |  7 -------
 arch/ppc/kernel/misc.S          |  4 ----
 arch/ppc/kernel/ppc_ksyms.c     |  5 -----
 include/asm-powerpc/ide.h       | 12 ++++++------
 include/asm-powerpc/io.h        |  6 ------
 6 files changed, 6 insertions(+), 40 deletions(-)

(limited to 'include')

diff --git a/arch/powerpc/kernel/misc.S b/arch/powerpc/kernel/misc.S
index dd5f8e429196..6feb391422ec 100644
--- a/arch/powerpc/kernel/misc.S
+++ b/arch/powerpc/kernel/misc.S
@@ -86,9 +86,6 @@ _GLOBAL(_outsb)
 	sync
 	blr
 
-#ifdef CONFIG_PPC32
-_GLOBAL(__ide_mm_insw)
-#endif
 _GLOBAL(_insw_ns)
 	sync
 	cmpwi	0,r5,0
@@ -103,9 +100,6 @@ _GLOBAL(_insw_ns)
 	isync
 	blr
 
-#ifdef CONFIG_PPC32
-_GLOBAL(__ide_mm_outsw)
-#endif
 _GLOBAL(_outsw_ns)
 	cmpwi	0,r5,0
 	mtctr	r5
@@ -118,9 +112,6 @@ _GLOBAL(_outsw_ns)
 	sync
 	blr
 
-#ifdef CONFIG_PPC32
-_GLOBAL(__ide_mm_insl)
-#endif
 _GLOBAL(_insl_ns)
 	sync
 	cmpwi	0,r5,0
@@ -135,9 +126,6 @@ _GLOBAL(_insl_ns)
 	isync
 	blr
 
-#ifdef CONFIG_PPC32
-_GLOBAL(__ide_mm_outsl)
-#endif
 _GLOBAL(_outsl_ns)
 	cmpwi	0,r5,0
 	mtctr	r5
diff --git a/arch/powerpc/kernel/ppc_ksyms.c b/arch/powerpc/kernel/ppc_ksyms.c
index 314d6114e6ec..75429e580518 100644
--- a/arch/powerpc/kernel/ppc_ksyms.c
+++ b/arch/powerpc/kernel/ppc_ksyms.c
@@ -95,13 +95,6 @@ EXPORT_SYMBOL(__strnlen_user);
 EXPORT_SYMBOL(copy_4K_page);
 #endif
 
-#ifndef  __powerpc64__
-EXPORT_SYMBOL(__ide_mm_insl);
-EXPORT_SYMBOL(__ide_mm_outsw);
-EXPORT_SYMBOL(__ide_mm_insw);
-EXPORT_SYMBOL(__ide_mm_outsl);
-#endif
-
 EXPORT_SYMBOL(_insb);
 EXPORT_SYMBOL(_outsb);
 EXPORT_SYMBOL(_insw_ns);
diff --git a/arch/ppc/kernel/misc.S b/arch/ppc/kernel/misc.S
index 44700bbfe7bc..50b4bbd06804 100644
--- a/arch/ppc/kernel/misc.S
+++ b/arch/ppc/kernel/misc.S
@@ -768,7 +768,6 @@ _GLOBAL(_outsb)
 	bdnz	00b
 	blr
 
-_GLOBAL(__ide_mm_insw)
 _GLOBAL(_insw_ns)
 	cmpwi	0,r5,0
 	mtctr	r5
@@ -790,7 +789,6 @@ _GLOBAL(_insw_ns)
 	bdnz	00b
 	blr
 
-_GLOBAL(__ide_mm_outsw)
 _GLOBAL(_outsw_ns)
 	cmpwi	0,r5,0
 	mtctr	r5
@@ -812,7 +810,6 @@ _GLOBAL(_outsw_ns)
 	bdnz	00b
 	blr
 
-_GLOBAL(__ide_mm_insl)
 _GLOBAL(_insl_ns)
 	cmpwi	0,r5,0
 	mtctr	r5
@@ -834,7 +831,6 @@ _GLOBAL(_insl_ns)
 	bdnz	00b
 	blr
 
-_GLOBAL(__ide_mm_outsl)
 _GLOBAL(_outsl_ns)
 	cmpwi	0,r5,0
 	mtctr	r5
diff --git a/arch/ppc/kernel/ppc_ksyms.c b/arch/ppc/kernel/ppc_ksyms.c
index 2bd1f7353f56..c8b65ca8a350 100644
--- a/arch/ppc/kernel/ppc_ksyms.c
+++ b/arch/ppc/kernel/ppc_ksyms.c
@@ -115,11 +115,6 @@ EXPORT_SYMBOL(outw);
 EXPORT_SYMBOL(outl);
 EXPORT_SYMBOL(outsl);*/
 
-EXPORT_SYMBOL(__ide_mm_insl);
-EXPORT_SYMBOL(__ide_mm_outsw);
-EXPORT_SYMBOL(__ide_mm_insw);
-EXPORT_SYMBOL(__ide_mm_outsl);
-
 EXPORT_SYMBOL(_insb);
 EXPORT_SYMBOL(_outsb);
 EXPORT_SYMBOL(_insw_ns);
diff --git a/include/asm-powerpc/ide.h b/include/asm-powerpc/ide.h
index b09b42af6a1e..c8390f9485de 100644
--- a/include/asm-powerpc/ide.h
+++ b/include/asm-powerpc/ide.h
@@ -12,6 +12,7 @@
 #include <linux/sched.h>
 #include <asm/mpc8xx.h>
 #endif
+#include <asm/io.h>
 
 #ifndef MAX_HWIFS
 #ifdef __powerpc64__
@@ -21,15 +22,14 @@
 #endif
 #endif
 
+#define __ide_mm_insw(p, a, c)	_insw_ns((volatile u16 __iomem *)(p), (a), (c))
+#define __ide_mm_insl(p, a, c)	_insl_ns((volatile u32 __iomem *)(p), (a), (c))
+#define __ide_mm_outsw(p, a, c)	_outsw_ns((volatile u16 __iomem *)(p), (a), (c))
+#define __ide_mm_outsl(p, a, c)	_outsl_ns((volatile u32 __iomem *)(p), (a), (c))
+
 #ifndef  __powerpc64__
 #include <linux/hdreg.h>
 #include <linux/ioport.h>
-#include <asm/io.h>
-
-extern void __ide_mm_insw(void __iomem *port, void *addr, u32 count);
-extern void __ide_mm_outsw(void __iomem *port, void *addr, u32 count);
-extern void __ide_mm_insl(void __iomem *port, void *addr, u32 count);
-extern void __ide_mm_outsl(void __iomem *port, void *addr, u32 count);
 
 struct ide_machdep_calls {
         int         (*default_irq)(unsigned long base);
diff --git a/include/asm-powerpc/io.h b/include/asm-powerpc/io.h
index 0ee48436b1e3..51a598747367 100644
--- a/include/asm-powerpc/io.h
+++ b/include/asm-powerpc/io.h
@@ -28,12 +28,6 @@ extern int check_legacy_ioport(unsigned long base_port);
 
 #include <asm-generic/iomap.h>
 
-#define __ide_mm_insw(p, a, c) _insw_ns((volatile u16 __iomem *)(p), (a), (c))
-#define __ide_mm_insl(p, a, c) _insl_ns((volatile u32 __iomem *)(p), (a), (c))
-#define __ide_mm_outsw(p, a, c) _outsw_ns((volatile u16 __iomem *)(p), (a), (c))
-#define __ide_mm_outsl(p, a, c) _outsl_ns((volatile u32 __iomem *)(p), (a), (c))
-
-
 #define SIO_CONFIG_RA	0x398
 #define SIO_CONFIG_RD	0x399
 
-- 
cgit v1.2.3


From 5adcaf50cf697aa4d0c731107003c1383b59b214 Mon Sep 17 00:00:00 2001
From: Stephen Rothwell <sfr@canb.auug.org.au>
Date: Tue, 19 Sep 2006 22:17:49 +1000
Subject: [POWERPC] convert string i/o operations to C

This produces essentially the same code and will make the iSeries i/o
consolidation easier.

The count parameter is changed to long since that will produce the same
(better) code on 32 and 64 bit builds.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
---
 arch/powerpc/kernel/Makefile    |   2 +-
 arch/powerpc/kernel/io.c        | 117 ++++++++++++++++++++++++++++++++++++++++
 arch/powerpc/kernel/misc.S      |  95 --------------------------------
 arch/powerpc/kernel/ppc_ksyms.c |   7 ---
 include/asm-powerpc/io.h        |  12 ++---
 include/asm-ppc/io.h            |  12 ++---
 6 files changed, 130 insertions(+), 115 deletions(-)
 create mode 100644 arch/powerpc/kernel/io.c

(limited to 'include')

diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile
index 8b3f4faf5768..8b133afbdc20 100644
--- a/arch/powerpc/kernel/Makefile
+++ b/arch/powerpc/kernel/Makefile
@@ -51,7 +51,7 @@ extra-$(CONFIG_8xx)		:= head_8xx.o
 extra-y				+= vmlinux.lds
 
 obj-y				+= time.o prom.o traps.o setup-common.o \
-				   udbg.o misc.o
+				   udbg.o misc.o io.o
 obj-$(CONFIG_PPC32)		+= entry_32.o setup_32.o misc_32.o
 obj-$(CONFIG_PPC64)		+= misc_64.o dma_64.o iommu.o
 obj-$(CONFIG_PPC_MULTIPLATFORM)	+= prom_init.o
diff --git a/arch/powerpc/kernel/io.c b/arch/powerpc/kernel/io.c
new file mode 100644
index 000000000000..80a3209acef4
--- /dev/null
+++ b/arch/powerpc/kernel/io.c
@@ -0,0 +1,117 @@
+/*
+ * I/O string operations
+ *    Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
+ *    Copyright (C) 2006 IBM Corporation
+ *
+ * Largely rewritten by Cort Dougan (cort@cs.nmt.edu)
+ * and Paul Mackerras.
+ *
+ * Adapted for iSeries by Mike Corrigan (mikejc@us.ibm.com)
+ * PPC64 updates by Dave Engebretsen (engebret@us.ibm.com)
+ *
+ * Rewritten in C by Stephen Rothwell.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/compiler.h>
+#include <linux/module.h>
+
+#include <asm/io.h>
+
+void _insb(volatile u8 __iomem *port, void *buf, long count)
+{
+	u8 *tbuf = buf;
+	u8 tmp;
+
+	if (unlikely(count <= 0))
+		return;
+	asm volatile("sync");
+	do {
+		tmp = *port;
+		asm volatile("eieio");
+		*tbuf++ = tmp;
+	} while (--count != 0);
+	asm volatile("twi 0,%0,0; isync" : : "r" (tmp));
+}
+EXPORT_SYMBOL(_insb);
+
+void _outsb(volatile u8 __iomem *port, const void *buf, long count)
+{
+	const u8 *tbuf = buf;
+
+	if (unlikely(count <= 0))
+		return;
+	asm volatile("sync");
+	do {
+		*port = *tbuf++;
+	} while (--count != 0);
+	asm volatile("sync");
+}
+EXPORT_SYMBOL(_outsb);
+
+void _insw_ns(volatile u16 __iomem *port, void *buf, long count)
+{
+	u16 *tbuf = buf;
+	u16 tmp;
+
+	if (unlikely(count <= 0))
+		return;
+	asm volatile("sync");
+	do {
+		tmp = *port;
+		asm volatile("eieio");
+		*tbuf++ = tmp;
+	} while (--count != 0);
+	asm volatile("twi 0,%0,0; isync" : : "r" (tmp));
+}
+EXPORT_SYMBOL(_insw_ns);
+
+void _outsw_ns(volatile u16 __iomem *port, const void *buf, long count)
+{
+	const u16 *tbuf = buf;
+
+	if (unlikely(count <= 0))
+		return;
+	asm volatile("sync");
+	do {
+		*port = *tbuf++;
+	} while (--count != 0);
+	asm volatile("sync");
+}
+EXPORT_SYMBOL(_outsw_ns);
+
+void _insl_ns(volatile u32 __iomem *port, void *buf, long count)
+{
+	u32 *tbuf = buf;
+	u32 tmp;
+
+	if (unlikely(count <= 0))
+		return;
+	asm volatile("sync");
+	do {
+		tmp = *port;
+		asm volatile("eieio");
+		*tbuf++ = tmp;
+	} while (--count != 0);
+	asm volatile("twi 0,%0,0; isync" : : "r" (tmp));
+}
+EXPORT_SYMBOL(_insl_ns);
+
+void _outsl_ns(volatile u32 __iomem *port, const void *buf, long count)
+{
+	const u32 *tbuf = buf;
+
+	if (unlikely(count <= 0))
+		return;
+	asm volatile("sync");
+	do {
+		*port = *tbuf++;
+	} while (--count != 0);
+	asm volatile("sync");
+}
+EXPORT_SYMBOL(_outsl_ns);
diff --git a/arch/powerpc/kernel/misc.S b/arch/powerpc/kernel/misc.S
index 6feb391422ec..330c9dc7db86 100644
--- a/arch/powerpc/kernel/misc.S
+++ b/arch/powerpc/kernel/misc.S
@@ -43,98 +43,3 @@ _GLOBAL(add_reloc_offset)
 	add	r3,r3,r5
 	mtlr	r0
 	blr
-
-/*
- * I/O string operations
- *
- * insb(port, buf, len)
- * outsb(port, buf, len)
- * insw(port, buf, len)
- * outsw(port, buf, len)
- * insl(port, buf, len)
- * outsl(port, buf, len)
- * insw_ns(port, buf, len)
- * outsw_ns(port, buf, len)
- * insl_ns(port, buf, len)
- * outsl_ns(port, buf, len)
- *
- * The *_ns versions don't do byte-swapping.
- */
-_GLOBAL(_insb)
-	sync
-	cmpwi	0,r5,0
-	mtctr	r5
-	subi	r4,r4,1
-	blelr-
-00:	lbz	r5,0(r3)
-	eieio
-	stbu	r5,1(r4)
-	bdnz	00b
-	twi	0,r5,0
-	isync
-	blr
-
-_GLOBAL(_outsb)
-	cmpwi	0,r5,0
-	mtctr	r5
-	subi	r4,r4,1
-	blelr-
-	sync
-00:	lbzu	r5,1(r4)
-	stb	r5,0(r3)
-	bdnz	00b
-	sync
-	blr
-
-_GLOBAL(_insw_ns)
-	sync
-	cmpwi	0,r5,0
-	mtctr	r5
-	subi	r4,r4,2
-	blelr-
-00:	lhz	r5,0(r3)
-	eieio
-	sthu	r5,2(r4)
-	bdnz	00b
-	twi	0,r5,0
-	isync
-	blr
-
-_GLOBAL(_outsw_ns)
-	cmpwi	0,r5,0
-	mtctr	r5
-	subi	r4,r4,2
-	blelr-
-	sync
-00:	lhzu	r5,2(r4)
-	sth	r5,0(r3)
-	bdnz	00b
-	sync
-	blr
-
-_GLOBAL(_insl_ns)
-	sync
-	cmpwi	0,r5,0
-	mtctr	r5
-	subi	r4,r4,4
-	blelr-
-00:	lwz	r5,0(r3)
-	eieio
-	stwu	r5,4(r4)
-	bdnz	00b
-	twi	0,r5,0
-	isync
-	blr
-
-_GLOBAL(_outsl_ns)
-	cmpwi	0,r5,0
-	mtctr	r5
-	subi	r4,r4,4
-	blelr-
-	sync
-00:	lwzu	r5,4(r4)
-	stw	r5,0(r3)
-	bdnz	00b
-	sync
-	blr
-
diff --git a/arch/powerpc/kernel/ppc_ksyms.c b/arch/powerpc/kernel/ppc_ksyms.c
index 75429e580518..807193a3c784 100644
--- a/arch/powerpc/kernel/ppc_ksyms.c
+++ b/arch/powerpc/kernel/ppc_ksyms.c
@@ -95,13 +95,6 @@ EXPORT_SYMBOL(__strnlen_user);
 EXPORT_SYMBOL(copy_4K_page);
 #endif
 
-EXPORT_SYMBOL(_insb);
-EXPORT_SYMBOL(_outsb);
-EXPORT_SYMBOL(_insw_ns);
-EXPORT_SYMBOL(_outsw_ns);
-EXPORT_SYMBOL(_insl_ns);
-EXPORT_SYMBOL(_outsl_ns);
-
 #if defined(CONFIG_PPC32) && (defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_IDE_MODULE))
 EXPORT_SYMBOL(ppc_ide_md);
 #endif
diff --git a/include/asm-powerpc/io.h b/include/asm-powerpc/io.h
index 51a598747367..57e7d14d6563 100644
--- a/include/asm-powerpc/io.h
+++ b/include/asm-powerpc/io.h
@@ -143,12 +143,12 @@ static inline void __raw_writeq(unsigned long v, volatile void __iomem *addr)
 #define readl_relaxed(addr) readl(addr)
 #define readq_relaxed(addr) readq(addr)
 
-extern void _insb(volatile u8 __iomem *port, void *buf, int ns);
-extern void _outsb(volatile u8 __iomem *port, const void *buf, int ns);
-extern void _insw_ns(volatile u16 __iomem *port, void *buf, int ns);
-extern void _outsw_ns(volatile u16 __iomem *port, const void *buf, int ns);
-extern void _insl_ns(volatile u32 __iomem *port, void *buf, int nl);
-extern void _outsl_ns(volatile u32 __iomem *port, const void *buf, int nl);
+extern void _insb(volatile u8 __iomem *port, void *buf, long count);
+extern void _outsb(volatile u8 __iomem *port, const void *buf, long count);
+extern void _insw_ns(volatile u16 __iomem *port, void *buf, long count);
+extern void _outsw_ns(volatile u16 __iomem *port, const void *buf, long count);
+extern void _insl_ns(volatile u32 __iomem *port, void *buf, long count);
+extern void _outsl_ns(volatile u32 __iomem *port, const void *buf, long count);
 
 static inline void mmiowb(void)
 {
diff --git a/include/asm-ppc/io.h b/include/asm-ppc/io.h
index 9fac420f1648..3d9a9e6f3321 100644
--- a/include/asm-ppc/io.h
+++ b/include/asm-ppc/io.h
@@ -327,12 +327,12 @@ __do_out_asm(outl, "stwbrx")
 #define inl_p(port)		inl((port))
 #define outl_p(val, port)	outl((val), (port))
 
-extern void _insb(volatile u8 __iomem *port, void *buf, int ns);
-extern void _outsb(volatile u8 __iomem *port, const void *buf, int ns);
-extern void _insw_ns(volatile u16 __iomem *port, void *buf, int ns);
-extern void _outsw_ns(volatile u16 __iomem *port, const void *buf, int ns);
-extern void _insl_ns(volatile u32 __iomem *port, void *buf, int nl);
-extern void _outsl_ns(volatile u32 __iomem *port, const void *buf, int nl);
+extern void _insb(volatile u8 __iomem *port, void *buf, long count);
+extern void _outsb(volatile u8 __iomem *port, const void *buf, long count);
+extern void _insw_ns(volatile u16 __iomem *port, void *buf, long count);
+extern void _outsw_ns(volatile u16 __iomem *port, const void *buf, long count);
+extern void _insl_ns(volatile u32 __iomem *port, void *buf, long count);
+extern void _outsl_ns(volatile u32 __iomem *port, const void *buf, long count);
 
 
 #define IO_SPACE_LIMIT ~0
-- 
cgit v1.2.3


From 19e59df4dc2e6f7b46190ee77ce7093769f597a7 Mon Sep 17 00:00:00 2001
From: Stephen Rothwell <sfr@canb.auug.org.au>
Date: Thu, 14 Sep 2006 14:55:36 +1000
Subject: [POWERPC] iseries: eliminate a couple of warnings

Copy and paste bug in io.h

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
---
 include/asm-powerpc/io.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'include')

diff --git a/include/asm-powerpc/io.h b/include/asm-powerpc/io.h
index 57e7d14d6563..174fb89d5eda 100644
--- a/include/asm-powerpc/io.h
+++ b/include/asm-powerpc/io.h
@@ -68,8 +68,8 @@ extern unsigned long pci_io_base;
  * for older code.
  */
 #define insb(port, buf, ns)	_insb((u8 __iomem *)((port)+pci_io_base), (buf), (ns))
-#define insw(port, buf, ns)	_insw_ns((u8 __iomem *)((port)+pci_io_base), (buf), (ns))
-#define insl(port, buf, nl)	_insl_ns((u8 __iomem *)((port)+pci_io_base), (buf), (nl))
+#define insw(port, buf, ns)	_insw_ns((u16 __iomem *)((port)+pci_io_base), (buf), (ns))
+#define insl(port, buf, nl)	_insl_ns((u32 __iomem *)((port)+pci_io_base), (buf), (nl))
 
 #else
 
-- 
cgit v1.2.3


From a4dc7ff08915a2035aa6d6decc53fa1deaa410bb Mon Sep 17 00:00:00 2001
From: Paul Mackerras <paulus@samba.org>
Date: Tue, 19 Sep 2006 14:06:27 +1000
Subject: [POWERPC] Define of_read_ulong helper

There are various places where we want to extract an unsigned long
value from a device-tree property that can be 1 or 2 cells in length.
This replaces some open-coded calculations, and one place where we
assumed without checking that properties were the length we wanted,
with a little of_read_ulong() helper.

Signed-off-by: Paul Mackerras <paulus@samba.org>
---
 arch/powerpc/kernel/prom.c         | 19 ++-----------------
 arch/powerpc/kernel/setup-common.c | 13 ++++++++-----
 arch/powerpc/kernel/time.c         |  4 +---
 include/asm-powerpc/prom.h         | 12 +++++++++++-
 4 files changed, 22 insertions(+), 26 deletions(-)

(limited to 'include')

diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index bf2005b2feb6..eb913f80bfb1 100644
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -757,24 +757,9 @@ static int __init early_init_dt_scan_root(unsigned long node,
 static unsigned long __init dt_mem_next_cell(int s, cell_t **cellp)
 {
 	cell_t *p = *cellp;
-	unsigned long r;
 
-	/* Ignore more than 2 cells */
-	while (s > sizeof(unsigned long) / 4) {
-		p++;
-		s--;
-	}
-	r = *p++;
-#ifdef CONFIG_PPC64
-	if (s > 1) {
-		r <<= 32;
-		r |= *(p++);
-		s--;
-	}
-#endif
-
-	*cellp = p;
-	return r;
+	*cellp = p + s;
+	return of_read_ulong(p, s);
 }
 
 
diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c
index 465e7435efbc..0af3fc1bdcc9 100644
--- a/arch/powerpc/kernel/setup-common.c
+++ b/arch/powerpc/kernel/setup-common.c
@@ -304,18 +304,21 @@ struct seq_operations cpuinfo_op = {
 void __init check_for_initrd(void)
 {
 #ifdef CONFIG_BLK_DEV_INITRD
-	const unsigned long *prop;
+	const unsigned int *prop;
+	int len;
 
 	DBG(" -> check_for_initrd()\n");
 
 	if (of_chosen) {
-		prop = get_property(of_chosen, "linux,initrd-start", NULL);
+		prop = get_property(of_chosen, "linux,initrd-start", &len);
 		if (prop != NULL) {
-			initrd_start = (unsigned long)__va(*prop);
+			initrd_start = (unsigned long)
+				__va(of_read_ulong(prop, len / 4));
 			prop = get_property(of_chosen,
-					"linux,initrd-end", NULL);
+					"linux,initrd-end", &len);
 			if (prop != NULL) {
-				initrd_end = (unsigned long)__va(*prop);
+				initrd_end = (unsigned long)
+					__va(of_read_ulong(prop, len / 4));
 				initrd_below_start_ok = 1;
 			} else
 				initrd_start = 0;
diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index b9a2061cfdb7..7a3c3f791ade 100644
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -870,9 +870,7 @@ static int __init get_freq(char *name, int cells, unsigned long *val)
 		fp = get_property(cpu, name, NULL);
 		if (fp) {
 			found = 1;
-			*val = 0;
-			while (cells--)
-				*val = (*val << 32) | *fp++;
+			*val = of_read_ulong(fp, cells);
 		}
 
 		of_node_put(cpu);
diff --git a/include/asm-powerpc/prom.h b/include/asm-powerpc/prom.h
index c15e66a2e681..524629769336 100644
--- a/include/asm-powerpc/prom.h
+++ b/include/asm-powerpc/prom.h
@@ -197,7 +197,7 @@ extern int release_OF_resource(struct device_node* node, int index);
  */
 
 
-/* Helper to read a big number */
+/* Helper to read a big number; size is in cells (not bytes) */
 static inline u64 of_read_number(const u32 *cell, int size)
 {
 	u64 r = 0;
@@ -206,6 +206,16 @@ static inline u64 of_read_number(const u32 *cell, int size)
 	return r;
 }
 
+/* Like of_read_number, but we want an unsigned long result */
+#ifdef CONFIG_PPC32
+static inline unsigned long of_read_ulong(const u32 *cell, int size)
+{
+	return cell[size-1];
+}
+#else
+#define of_read_ulong(cell, size)	of_read_number(cell, size)
+#endif
+
 /* Translate an OF address block into a CPU physical address
  */
 #define OF_BAD_ADDR	((u64)-1)
-- 
cgit v1.2.3


From 47b5c838af92d3504e99633bf568578203b7305f Mon Sep 17 00:00:00 2001
From: Linas Vepstas <linas@austin.ibm.com>
Date: Fri, 15 Sep 2006 18:57:42 -0500
Subject: [POWERPC] EEH: enable MMIO/DMA on frozen slot

Add wrapper around the rtas call to enable MMIO or DMA on a frozen pci
slot.

Signed-off-by: Linas Vepstas <linas@austin.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
---
 arch/powerpc/platforms/pseries/eeh.c | 29 +++++++++++++++++++++++++++++
 include/asm-powerpc/ppc-pci.h        | 11 +++++++++++
 2 files changed, 40 insertions(+)

(limited to 'include')

diff --git a/arch/powerpc/platforms/pseries/eeh.c b/arch/powerpc/platforms/pseries/eeh.c
index fb91842fc819..4534886e3b4e 100644
--- a/arch/powerpc/platforms/pseries/eeh.c
+++ b/arch/powerpc/platforms/pseries/eeh.c
@@ -481,6 +481,35 @@ eeh_slot_availability(struct pci_dn *pdn)
 	return -1;
 }
 
+/**
+ * rtas_pci_enable - enable MMIO or DMA transfers for this slot
+ * @pdn pci device node
+ */
+
+int
+rtas_pci_enable(struct pci_dn *pdn, int function)
+{
+	int config_addr;
+	int rc;
+
+	/* Use PE configuration address, if present */
+	config_addr = pdn->eeh_config_addr;
+	if (pdn->eeh_pe_config_addr)
+		config_addr = pdn->eeh_pe_config_addr;
+
+	rc = rtas_call(ibm_set_eeh_option, 4, 1, NULL,
+	               config_addr,
+	               BUID_HI(pdn->phb->buid),
+	               BUID_LO(pdn->phb->buid),
+		            function);
+
+	if (rc)
+		printk(KERN_WARNING "EEH: Cannot enable function %d, err=%d dn=%s\n",
+		        function, rc, pdn->node->full_name);
+
+	return rc;
+}
+
 /**
  * rtas_pci_slot_reset - raises/lowers the pci #RST line
  * @pdn pci device node
diff --git a/include/asm-powerpc/ppc-pci.h b/include/asm-powerpc/ppc-pci.h
index cf79bc7ebb55..1115756c79f9 100644
--- a/include/asm-powerpc/ppc-pci.h
+++ b/include/asm-powerpc/ppc-pci.h
@@ -68,6 +68,17 @@ struct pci_dev *pci_get_device_by_addr(unsigned long addr);
  */
 void eeh_slot_error_detail (struct pci_dn *pdn, int severity);
 
+/**
+ * rtas_pci_enableo - enable IO transfers for this slot
+ * @pdn:       pci device node
+ * @function:  either EEH_THAW_MMIO or EEH_THAW_DMA 
+ *
+ * Enable I/O transfers to this slot 
+ */
+#define EEH_THAW_MMIO 2
+#define EEH_THAW_DMA  3
+int rtas_pci_enable(struct pci_dn *pdn, int function);
+
 /**
  * rtas_set_slot_reset -- unfreeze a frozen slot
  *
-- 
cgit v1.2.3


From 7da8a2e5c1fd2ee513fdeac8d13c4f3623838fd0 Mon Sep 17 00:00:00 2001
From: Josh Boyer <jdub@us.ibm.com>
Date: Wed, 20 Sep 2006 09:11:59 -0500
Subject: [POWERPC] 40x: Fix debug status register defines

This fixes some debug register defines on PPC 40x that were incorrect.

Signed-off-by: Josh Boyer <jdub@us.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
---
 include/asm-ppc/reg_booke.h | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

(limited to 'include')

diff --git a/include/asm-ppc/reg_booke.h b/include/asm-ppc/reg_booke.h
index 4944c0fb8bea..602fbadeaf48 100644
--- a/include/asm-ppc/reg_booke.h
+++ b/include/asm-ppc/reg_booke.h
@@ -300,14 +300,14 @@ do {						\
 #define DBSR_IC		0x80000000	/* Instruction Completion */
 #define DBSR_BT		0x40000000	/* Branch taken */
 #define DBSR_TIE	0x10000000	/* Trap Instruction debug Event */
-#define DBSR_IAC1	0x00800000	/* Instruction Address Compare 1 Event */
-#define DBSR_IAC2	0x00400000	/* Instruction Address Compare 2 Event */
-#define DBSR_IAC3	0x00200000	/* Instruction Address Compare 3 Event */
-#define DBSR_IAC4	0x00100000	/* Instruction Address Compare 4 Event */
-#define DBSR_DAC1R	0x00080000	/* Data Address Compare 1 Read Event */
-#define DBSR_DAC1W	0x00040000	/* Data Address Compare 1 Write Event */
-#define DBSR_DAC2R	0x00020000	/* Data Address Compare 2 Read Event */
-#define DBSR_DAC2W	0x00010000	/* Data Address Compare 2 Write Event */
+#define DBSR_IAC1	0x04000000	/* Instruction Address Compare 1 Event */
+#define DBSR_IAC2	0x02000000	/* Instruction Address Compare 2 Event */
+#define DBSR_IAC3	0x00080000	/* Instruction Address Compare 3 Event */
+#define DBSR_IAC4	0x00040000	/* Instruction Address Compare 4 Event */
+#define DBSR_DAC1R	0x01000000	/* Data Address Compare 1 Read Event */
+#define DBSR_DAC1W	0x00800000	/* Data Address Compare 1 Write Event */
+#define DBSR_DAC2R	0x00400000	/* Data Address Compare 2 Read Event */
+#define DBSR_DAC2W	0x00200000	/* Data Address Compare 2 Write Event */
 #endif
 
 /* Bit definitions related to the ESR. */
-- 
cgit v1.2.3


From caf81329c39b5c48f6cc0d78fa159b5a587e37f9 Mon Sep 17 00:00:00 2001
From: Stephen Rothwell <sfr@canb.auug.org.au>
Date: Thu, 21 Sep 2006 18:00:00 +1000
Subject: [POWERPC] Merge iSeries i/o operations with the rest

This patch changes the io operations so that they are out of line if
CONFIG_PPC_ISERIES is set and includes a firmware feature check in
that case.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
---
 arch/powerpc/kernel/io.c                 |  14 ++
 arch/powerpc/platforms/iseries/pci.c     | 280 +++++++++++++++++++++++++------
 include/asm-powerpc/io.h                 | 148 ++++++++--------
 include/asm-powerpc/iseries/iseries_io.h |  60 -------
 4 files changed, 319 insertions(+), 183 deletions(-)
 delete mode 100644 include/asm-powerpc/iseries/iseries_io.h

(limited to 'include')

diff --git a/arch/powerpc/kernel/io.c b/arch/powerpc/kernel/io.c
index 80a3209acef4..e98180686b35 100644
--- a/arch/powerpc/kernel/io.c
+++ b/arch/powerpc/kernel/io.c
@@ -22,12 +22,16 @@
 #include <linux/module.h>
 
 #include <asm/io.h>
+#include <asm/firmware.h>
+#include <asm/bug.h>
 
 void _insb(volatile u8 __iomem *port, void *buf, long count)
 {
 	u8 *tbuf = buf;
 	u8 tmp;
 
+	BUG_ON(firmware_has_feature(FW_FEATURE_ISERIES));
+
 	if (unlikely(count <= 0))
 		return;
 	asm volatile("sync");
@@ -44,6 +48,8 @@ void _outsb(volatile u8 __iomem *port, const void *buf, long count)
 {
 	const u8 *tbuf = buf;
 
+	BUG_ON(firmware_has_feature(FW_FEATURE_ISERIES));
+
 	if (unlikely(count <= 0))
 		return;
 	asm volatile("sync");
@@ -59,6 +65,8 @@ void _insw_ns(volatile u16 __iomem *port, void *buf, long count)
 	u16 *tbuf = buf;
 	u16 tmp;
 
+	BUG_ON(firmware_has_feature(FW_FEATURE_ISERIES));
+
 	if (unlikely(count <= 0))
 		return;
 	asm volatile("sync");
@@ -75,6 +83,8 @@ void _outsw_ns(volatile u16 __iomem *port, const void *buf, long count)
 {
 	const u16 *tbuf = buf;
 
+	BUG_ON(firmware_has_feature(FW_FEATURE_ISERIES));
+
 	if (unlikely(count <= 0))
 		return;
 	asm volatile("sync");
@@ -90,6 +100,8 @@ void _insl_ns(volatile u32 __iomem *port, void *buf, long count)
 	u32 *tbuf = buf;
 	u32 tmp;
 
+	BUG_ON(firmware_has_feature(FW_FEATURE_ISERIES));
+
 	if (unlikely(count <= 0))
 		return;
 	asm volatile("sync");
@@ -106,6 +118,8 @@ void _outsl_ns(volatile u32 __iomem *port, const void *buf, long count)
 {
 	const u32 *tbuf = buf;
 
+	BUG_ON(firmware_has_feature(FW_FEATURE_ISERIES));
+
 	if (unlikely(count <= 0))
 		return;
 	asm volatile("sync");
diff --git a/arch/powerpc/platforms/iseries/pci.c b/arch/powerpc/platforms/iseries/pci.c
index f4d427a7bb2d..3eb12065df23 100644
--- a/arch/powerpc/platforms/iseries/pci.c
+++ b/arch/powerpc/platforms/iseries/pci.c
@@ -34,6 +34,7 @@
 #include <asm/pci-bridge.h>
 #include <asm/iommu.h>
 #include <asm/abs_addr.h>
+#include <asm/firmware.h>
 
 #include <asm/iseries/hv_call_xm.h>
 #include <asm/iseries/mf.h>
@@ -269,46 +270,6 @@ void pcibios_fixup_resources(struct pci_dev *pdev)
 {
 }
 
-/*
- * I/0 Memory copy MUST use mmio commands on iSeries
- * To do; For performance, include the hv call directly
- */
-void iSeries_memset_io(volatile void __iomem *dest, char c, size_t Count)
-{
-	u8 ByteValue = c;
-	long NumberOfBytes = Count;
-
-	while (NumberOfBytes > 0) {
-		iSeries_Write_Byte(ByteValue, dest++);
-		-- NumberOfBytes;
-	}
-}
-EXPORT_SYMBOL(iSeries_memset_io);
-
-void iSeries_memcpy_toio(volatile void __iomem *dest, void *source, size_t count)
-{
-	char *src = source;
-	long NumberOfBytes = count;
-
-	while (NumberOfBytes > 0) {
-		iSeries_Write_Byte(*src++, dest++);
-		-- NumberOfBytes;
-	}
-}
-EXPORT_SYMBOL(iSeries_memcpy_toio);
-
-void iSeries_memcpy_fromio(void *dest, const volatile void __iomem *src, size_t count)
-{
-	char *dst = dest;
-	long NumberOfBytes = count;
-
-	while (NumberOfBytes > 0) {
-		*dst++ = iSeries_Read_Byte(src++);
-		-- NumberOfBytes;
-	}
-}
-EXPORT_SYMBOL(iSeries_memcpy_fromio);
-
 /*
  * Look down the chain to find the matching Device Device
  */
@@ -491,7 +452,7 @@ static inline struct device_node *xlate_iomm_address(
  * iSeries_Read_Word = Read Word  (16 bit)
  * iSeries_Read_Long = Read Long  (32 bit)
  */
-u8 iSeries_Read_Byte(const volatile void __iomem *IoAddress)
+static u8 iSeries_Read_Byte(const volatile void __iomem *IoAddress)
 {
 	u64 BarOffset;
 	u64 dsa;
@@ -518,9 +479,8 @@ u8 iSeries_Read_Byte(const volatile void __iomem *IoAddress)
 
 	return (u8)ret.value;
 }
-EXPORT_SYMBOL(iSeries_Read_Byte);
 
-u16 iSeries_Read_Word(const volatile void __iomem *IoAddress)
+static u16 iSeries_Read_Word(const volatile void __iomem *IoAddress)
 {
 	u64 BarOffset;
 	u64 dsa;
@@ -548,9 +508,8 @@ u16 iSeries_Read_Word(const volatile void __iomem *IoAddress)
 
 	return swab16((u16)ret.value);
 }
-EXPORT_SYMBOL(iSeries_Read_Word);
 
-u32 iSeries_Read_Long(const volatile void __iomem *IoAddress)
+static u32 iSeries_Read_Long(const volatile void __iomem *IoAddress)
 {
 	u64 BarOffset;
 	u64 dsa;
@@ -578,7 +537,6 @@ u32 iSeries_Read_Long(const volatile void __iomem *IoAddress)
 
 	return swab32((u32)ret.value);
 }
-EXPORT_SYMBOL(iSeries_Read_Long);
 
 /*
  * Write MM I/O Instructions for the iSeries
@@ -587,7 +545,7 @@ EXPORT_SYMBOL(iSeries_Read_Long);
  * iSeries_Write_Word = Write Word(16 bit)
  * iSeries_Write_Long = Write Long(32 bit)
  */
-void iSeries_Write_Byte(u8 data, volatile void __iomem *IoAddress)
+static void iSeries_Write_Byte(u8 data, volatile void __iomem *IoAddress)
 {
 	u64 BarOffset;
 	u64 dsa;
@@ -612,9 +570,8 @@ void iSeries_Write_Byte(u8 data, volatile void __iomem *IoAddress)
 		rc = HvCall4(HvCallPciBarStore8, dsa, BarOffset, data, 0);
 	} while (CheckReturnCode("WWB", DevNode, &retry, rc) != 0);
 }
-EXPORT_SYMBOL(iSeries_Write_Byte);
 
-void iSeries_Write_Word(u16 data, volatile void __iomem *IoAddress)
+static void iSeries_Write_Word(u16 data, volatile void __iomem *IoAddress)
 {
 	u64 BarOffset;
 	u64 dsa;
@@ -639,9 +596,8 @@ void iSeries_Write_Word(u16 data, volatile void __iomem *IoAddress)
 		rc = HvCall4(HvCallPciBarStore16, dsa, BarOffset, swab16(data), 0);
 	} while (CheckReturnCode("WWW", DevNode, &retry, rc) != 0);
 }
-EXPORT_SYMBOL(iSeries_Write_Word);
 
-void iSeries_Write_Long(u32 data, volatile void __iomem *IoAddress)
+static void iSeries_Write_Long(u32 data, volatile void __iomem *IoAddress)
 {
 	u64 BarOffset;
 	u64 dsa;
@@ -666,4 +622,224 @@ void iSeries_Write_Long(u32 data, volatile void __iomem *IoAddress)
 		rc = HvCall4(HvCallPciBarStore32, dsa, BarOffset, swab32(data), 0);
 	} while (CheckReturnCode("WWL", DevNode, &retry, rc) != 0);
 }
-EXPORT_SYMBOL(iSeries_Write_Long);
+
+extern unsigned char __raw_readb(const volatile void __iomem *addr)
+{
+	BUG_ON(firmware_has_feature(FW_FEATURE_ISERIES));
+
+	return *(volatile unsigned char __force *)addr;
+}
+EXPORT_SYMBOL(__raw_readb);
+
+extern unsigned short __raw_readw(const volatile void __iomem *addr)
+{
+	BUG_ON(firmware_has_feature(FW_FEATURE_ISERIES));
+
+	return *(volatile unsigned short __force *)addr;
+}
+EXPORT_SYMBOL(__raw_readw);
+
+extern unsigned int __raw_readl(const volatile void __iomem *addr)
+{
+	BUG_ON(firmware_has_feature(FW_FEATURE_ISERIES));
+
+	return *(volatile unsigned int __force *)addr;
+}
+EXPORT_SYMBOL(__raw_readl);
+
+extern unsigned long __raw_readq(const volatile void __iomem *addr)
+{
+	BUG_ON(firmware_has_feature(FW_FEATURE_ISERIES));
+
+	return *(volatile unsigned long __force *)addr;
+}
+EXPORT_SYMBOL(__raw_readq);
+
+extern void __raw_writeb(unsigned char v, volatile void __iomem *addr)
+{
+	BUG_ON(firmware_has_feature(FW_FEATURE_ISERIES));
+
+	*(volatile unsigned char __force *)addr = v;
+}
+EXPORT_SYMBOL(__raw_writeb);
+
+extern void __raw_writew(unsigned short v, volatile void __iomem *addr)
+{
+	BUG_ON(firmware_has_feature(FW_FEATURE_ISERIES));
+
+	*(volatile unsigned short __force *)addr = v;
+}
+EXPORT_SYMBOL(__raw_writew);
+
+extern void __raw_writel(unsigned int v, volatile void __iomem *addr)
+{
+	BUG_ON(firmware_has_feature(FW_FEATURE_ISERIES));
+
+	*(volatile unsigned int __force *)addr = v;
+}
+EXPORT_SYMBOL(__raw_writel);
+
+extern void __raw_writeq(unsigned long v, volatile void __iomem *addr)
+{
+	BUG_ON(firmware_has_feature(FW_FEATURE_ISERIES));
+
+	*(volatile unsigned long __force *)addr = v;
+}
+EXPORT_SYMBOL(__raw_writeq);
+
+int in_8(const volatile unsigned char __iomem *addr)
+{
+	if (firmware_has_feature(FW_FEATURE_ISERIES))
+		return iSeries_Read_Byte(addr);
+	return __in_8(addr);
+}
+EXPORT_SYMBOL(in_8);
+
+void out_8(volatile unsigned char __iomem *addr, int val)
+{
+	if (firmware_has_feature(FW_FEATURE_ISERIES))
+		iSeries_Write_Byte(val, addr);
+	else
+		__out_8(addr, val);
+}
+EXPORT_SYMBOL(out_8);
+
+int in_le16(const volatile unsigned short __iomem *addr)
+{
+	if (firmware_has_feature(FW_FEATURE_ISERIES))
+		return iSeries_Read_Word(addr);
+	return __in_le16(addr);
+}
+EXPORT_SYMBOL(in_le16);
+
+int in_be16(const volatile unsigned short __iomem *addr)
+{
+	BUG_ON(firmware_has_feature(FW_FEATURE_ISERIES));
+
+	return __in_be16(addr);
+}
+EXPORT_SYMBOL(in_be16);
+
+void out_le16(volatile unsigned short __iomem *addr, int val)
+{
+	if (firmware_has_feature(FW_FEATURE_ISERIES))
+		iSeries_Write_Word(val, addr);
+	else
+		__out_le16(addr, val);
+}
+EXPORT_SYMBOL(out_le16);
+
+void out_be16(volatile unsigned short __iomem *addr, int val)
+{
+	BUG_ON(firmware_has_feature(FW_FEATURE_ISERIES));
+
+	__out_be16(addr, val);
+}
+EXPORT_SYMBOL(out_be16);
+
+unsigned in_le32(const volatile unsigned __iomem *addr)
+{
+	if (firmware_has_feature(FW_FEATURE_ISERIES))
+		return iSeries_Read_Long(addr);
+	return __in_le32(addr);
+}
+EXPORT_SYMBOL(in_le32);
+
+unsigned in_be32(const volatile unsigned __iomem *addr)
+{
+	BUG_ON(firmware_has_feature(FW_FEATURE_ISERIES));
+
+	return __in_be32(addr);
+}
+EXPORT_SYMBOL(in_be32);
+
+void out_le32(volatile unsigned __iomem *addr, int val)
+{
+	if (firmware_has_feature(FW_FEATURE_ISERIES))
+		iSeries_Write_Long(val, addr);
+	else
+		__out_le32(addr, val);
+}
+EXPORT_SYMBOL(out_le32);
+
+void out_be32(volatile unsigned __iomem *addr, int val)
+{
+	BUG_ON(firmware_has_feature(FW_FEATURE_ISERIES));
+
+	__out_be32(addr, val);
+}
+EXPORT_SYMBOL(out_be32);
+
+unsigned long in_le64(const volatile unsigned long __iomem *addr)
+{
+	BUG_ON(firmware_has_feature(FW_FEATURE_ISERIES));
+
+	return __in_le64(addr);
+}
+EXPORT_SYMBOL(in_le64);
+
+unsigned long in_be64(const volatile unsigned long __iomem *addr)
+{
+	BUG_ON(firmware_has_feature(FW_FEATURE_ISERIES));
+
+	return __in_be64(addr);
+}
+EXPORT_SYMBOL(in_be64);
+
+void out_le64(volatile unsigned long __iomem *addr, unsigned long val)
+{
+	BUG_ON(firmware_has_feature(FW_FEATURE_ISERIES));
+
+	__out_le64(addr, val);
+}
+EXPORT_SYMBOL(out_le64);
+
+void out_be64(volatile unsigned long __iomem *addr, unsigned long val)
+{
+	BUG_ON(firmware_has_feature(FW_FEATURE_ISERIES));
+
+	__out_be64(addr, val);
+}
+EXPORT_SYMBOL(out_be64);
+
+void memset_io(volatile void __iomem *addr, int c, unsigned long n)
+{
+	if (firmware_has_feature(FW_FEATURE_ISERIES)) {
+		volatile char __iomem *d = addr;
+
+		while (n-- > 0) {
+			iSeries_Write_Byte(c, d++);
+		}
+	} else
+		eeh_memset_io(addr, c, n);
+}
+EXPORT_SYMBOL(memset_io);
+
+void memcpy_fromio(void *dest, const volatile void __iomem *src,
+                                 unsigned long n)
+{
+	if (firmware_has_feature(FW_FEATURE_ISERIES)) {
+		char *d = dest;
+		const volatile char __iomem *s = src;
+
+		while (n-- > 0) {
+			*d++ = iSeries_Read_Byte(s++);
+		}
+	} else
+		eeh_memcpy_fromio(dest, src, n);
+}
+EXPORT_SYMBOL(memcpy_fromio);
+
+void memcpy_toio(volatile void __iomem *dest, const void *src, unsigned long n)
+{
+	if (firmware_has_feature(FW_FEATURE_ISERIES)) {
+		const char *s = src;
+		volatile char __iomem *d = dest;
+
+		while (n-- > 0) {
+			iSeries_Write_Byte(*s++, d++);
+		}
+	} else
+		eeh_memcpy_toio(dest, src, n);
+}
+EXPORT_SYMBOL(memcpy_toio);
diff --git a/include/asm-powerpc/io.h b/include/asm-powerpc/io.h
index 174fb89d5eda..46bae1cf385b 100644
--- a/include/asm-powerpc/io.h
+++ b/include/asm-powerpc/io.h
@@ -20,9 +20,6 @@ extern int check_legacy_ioport(unsigned long base_port);
 #include <asm/page.h>
 #include <asm/byteorder.h>
 #include <asm/paca.h>
-#ifdef CONFIG_PPC_ISERIES 
-#include <asm/iseries/iseries_io.h>
-#endif  
 #include <asm/synch.h>
 #include <asm/delay.h>
 
@@ -37,41 +34,53 @@ extern unsigned long isa_io_base;
 extern unsigned long pci_io_base;
 
 #ifdef CONFIG_PPC_ISERIES
-/* __raw_* accessors aren't supported on iSeries */
-#define __raw_readb(addr)	{ BUG(); 0; }
-#define __raw_readw(addr)       { BUG(); 0; }
-#define __raw_readl(addr)       { BUG(); 0; }
-#define __raw_readq(addr)       { BUG(); 0; }
-#define __raw_writeb(v, addr)   { BUG(); 0; }
-#define __raw_writew(v, addr)   { BUG(); 0; }
-#define __raw_writel(v, addr)   { BUG(); 0; }
-#define __raw_writeq(v, addr)   { BUG(); 0; }
-#define readb(addr)		iSeries_Read_Byte(addr)
-#define readw(addr)		iSeries_Read_Word(addr)
-#define readl(addr)		iSeries_Read_Long(addr)
-#define writeb(data, addr)	iSeries_Write_Byte((data),(addr))
-#define writew(data, addr)	iSeries_Write_Word((data),(addr))
-#define writel(data, addr)	iSeries_Write_Long((data),(addr))
-#define memset_io(a,b,c)	iSeries_memset_io((a),(b),(c))
-#define memcpy_fromio(a,b,c)	iSeries_memcpy_fromio((a), (b), (c))
-#define memcpy_toio(a,b,c)	iSeries_memcpy_toio((a), (b), (c))
-
-#define inb(addr)		readb(((void __iomem *)(long)(addr)))
-#define inw(addr)		readw(((void __iomem *)(long)(addr)))
-#define inl(addr)		readl(((void __iomem *)(long)(addr)))
-#define outb(data,addr)		writeb(data,((void __iomem *)(long)(addr)))
-#define outw(data,addr)		writew(data,((void __iomem *)(long)(addr)))
-#define outl(data,addr)		writel(data,((void __iomem *)(long)(addr)))
-/*
- * The *_ns versions below don't do byte-swapping.
- * Neither do the standard versions now, these are just here
- * for older code.
- */
-#define insb(port, buf, ns)	_insb((u8 __iomem *)((port)+pci_io_base), (buf), (ns))
-#define insw(port, buf, ns)	_insw_ns((u16 __iomem *)((port)+pci_io_base), (buf), (ns))
-#define insl(port, buf, nl)	_insl_ns((u32 __iomem *)((port)+pci_io_base), (buf), (nl))
 
-#else
+extern int in_8(const volatile unsigned char __iomem *addr);
+extern void out_8(volatile unsigned char __iomem *addr, int val);
+extern int in_le16(const volatile unsigned short __iomem *addr);
+extern int in_be16(const volatile unsigned short __iomem *addr);
+extern void out_le16(volatile unsigned short __iomem *addr, int val);
+extern void out_be16(volatile unsigned short __iomem *addr, int val);
+extern unsigned in_le32(const volatile unsigned __iomem *addr);
+extern unsigned in_be32(const volatile unsigned __iomem *addr);
+extern void out_le32(volatile unsigned __iomem *addr, int val);
+extern void out_be32(volatile unsigned __iomem *addr, int val);
+extern unsigned long in_le64(const volatile unsigned long __iomem *addr);
+extern unsigned long in_be64(const volatile unsigned long __iomem *addr);
+extern void out_le64(volatile unsigned long __iomem *addr, unsigned long val);
+extern void out_be64(volatile unsigned long __iomem *addr, unsigned long val);
+
+extern unsigned char __raw_readb(const volatile void __iomem *addr);
+extern unsigned short __raw_readw(const volatile void __iomem *addr);
+extern unsigned int __raw_readl(const volatile void __iomem *addr);
+extern unsigned long __raw_readq(const volatile void __iomem *addr);
+extern void __raw_writeb(unsigned char v, volatile void __iomem *addr);
+extern void __raw_writew(unsigned short v, volatile void __iomem *addr);
+extern void __raw_writel(unsigned int v, volatile void __iomem *addr);
+extern void __raw_writeq(unsigned long v, volatile void __iomem *addr);
+
+extern void memset_io(volatile void __iomem *addr, int c, unsigned long n);
+extern void memcpy_fromio(void *dest, const volatile void __iomem *src,
+                                 unsigned long n);
+extern void memcpy_toio(volatile void __iomem *dest, const void *src,
+                                 unsigned long n);
+
+#else /* CONFIG_PPC_ISERIES */
+
+#define in_8(addr)		__in_8((addr))
+#define out_8(addr, val)	__out_8((addr), (val))
+#define in_le16(addr)		__in_le16((addr))
+#define in_be16(addr)		__in_be16((addr))
+#define out_le16(addr, val)	__out_le16((addr), (val))
+#define out_be16(addr, val)	__out_be16((addr), (val))
+#define in_le32(addr)		__in_le32((addr))
+#define in_be32(addr)		__in_be32((addr))
+#define out_le32(addr, val)	__out_le32((addr), (val))
+#define out_be32(addr, val)	__out_be32((addr), (val))
+#define in_le64(addr)		__in_le64((addr))
+#define in_be64(addr)		__in_be64((addr))
+#define out_le64(addr, val)	__out_le64((addr), (val))
+#define out_be64(addr, val)	__out_be64((addr), (val))
 
 static inline unsigned char __raw_readb(const volatile void __iomem *addr)
 {
@@ -105,23 +114,11 @@ static inline void __raw_writeq(unsigned long v, volatile void __iomem *addr)
 {
 	*(volatile unsigned long __force *)addr = v;
 }
-#define readb(addr)		eeh_readb(addr)
-#define readw(addr)		eeh_readw(addr)
-#define readl(addr)		eeh_readl(addr)
-#define readq(addr)		eeh_readq(addr)
-#define writeb(data, addr)	eeh_writeb((data), (addr))
-#define writew(data, addr)	eeh_writew((data), (addr))
-#define writel(data, addr)	eeh_writel((data), (addr))
-#define writeq(data, addr)	eeh_writeq((data), (addr))
 #define memset_io(a,b,c)	eeh_memset_io((a),(b),(c))
 #define memcpy_fromio(a,b,c)	eeh_memcpy_fromio((a),(b),(c))
 #define memcpy_toio(a,b,c)	eeh_memcpy_toio((a),(b),(c))
-#define inb(port)		eeh_inb((unsigned long)port)
-#define outb(val, port)		eeh_outb(val, (unsigned long)port)
-#define inw(port)		eeh_inw((unsigned long)port)
-#define outw(val, port)		eeh_outw(val, (unsigned long)port)
-#define inl(port)		eeh_inl((unsigned long)port)
-#define outl(val, port)		eeh_outl(val, (unsigned long)port)
+
+#endif /* CONFIG_PPC_ISERIES */
 
 /*
  * The insw/outsw/insl/outsl macros don't do byte-swapping.
@@ -132,12 +129,25 @@ static inline void __raw_writeq(unsigned long v, volatile void __iomem *addr)
 #define insw(port, buf, ns)	eeh_insw_ns((port), (buf), (ns))
 #define insl(port, buf, nl)	eeh_insl_ns((port), (buf), (nl))
 
-#endif
-
 #define outsb(port, buf, ns)  _outsb((u8 __iomem *)((port)+pci_io_base), (buf), (ns))
 #define outsw(port, buf, ns)  _outsw_ns((u16 __iomem *)((port)+pci_io_base), (buf), (ns))
 #define outsl(port, buf, nl)  _outsl_ns((u32 __iomem *)((port)+pci_io_base), (buf), (nl))
 
+#define readb(addr)		eeh_readb(addr)
+#define readw(addr)		eeh_readw(addr)
+#define readl(addr)		eeh_readl(addr)
+#define readq(addr)		eeh_readq(addr)
+#define writeb(data, addr)	eeh_writeb((data), (addr))
+#define writew(data, addr)	eeh_writew((data), (addr))
+#define writel(data, addr)	eeh_writel((data), (addr))
+#define writeq(data, addr)	eeh_writeq((data), (addr))
+#define inb(port)		eeh_inb((unsigned long)port)
+#define outb(val, port)		eeh_outb(val, (unsigned long)port)
+#define inw(port)		eeh_inw((unsigned long)port)
+#define outw(val, port)		eeh_outw(val, (unsigned long)port)
+#define inl(port)		eeh_inl((unsigned long)port)
+#define outl(val, port)		eeh_outl(val, (unsigned long)port)
+
 #define readb_relaxed(addr) readb(addr)
 #define readw_relaxed(addr) readw(addr)
 #define readl_relaxed(addr) readl(addr)
@@ -258,7 +268,7 @@ static inline void iosync(void)
  * and should not be used directly by device drivers.  Use inb/readb
  * instead.
  */
-static inline int in_8(const volatile unsigned char __iomem *addr)
+static inline int __in_8(const volatile unsigned char __iomem *addr)
 {
 	int ret;
 
@@ -267,14 +277,14 @@ static inline int in_8(const volatile unsigned char __iomem *addr)
 	return ret;
 }
 
-static inline void out_8(volatile unsigned char __iomem *addr, int val)
+static inline void __out_8(volatile unsigned char __iomem *addr, int val)
 {
 	__asm__ __volatile__("sync; stb%U0%X0 %1,%0"
 			     : "=m" (*addr) : "r" (val));
 	get_paca()->io_sync = 1;
 }
 
-static inline int in_le16(const volatile unsigned short __iomem *addr)
+static inline int __in_le16(const volatile unsigned short __iomem *addr)
 {
 	int ret;
 
@@ -283,7 +293,7 @@ static inline int in_le16(const volatile unsigned short __iomem *addr)
 	return ret;
 }
 
-static inline int in_be16(const volatile unsigned short __iomem *addr)
+static inline int __in_be16(const volatile unsigned short __iomem *addr)
 {
 	int ret;
 
@@ -292,21 +302,21 @@ static inline int in_be16(const volatile unsigned short __iomem *addr)
 	return ret;
 }
 
-static inline void out_le16(volatile unsigned short __iomem *addr, int val)
+static inline void __out_le16(volatile unsigned short __iomem *addr, int val)
 {
 	__asm__ __volatile__("sync; sthbrx %1,0,%2"
 			     : "=m" (*addr) : "r" (val), "r" (addr));
 	get_paca()->io_sync = 1;
 }
 
-static inline void out_be16(volatile unsigned short __iomem *addr, int val)
+static inline void __out_be16(volatile unsigned short __iomem *addr, int val)
 {
 	__asm__ __volatile__("sync; sth%U0%X0 %1,%0"
 			     : "=m" (*addr) : "r" (val));
 	get_paca()->io_sync = 1;
 }
 
-static inline unsigned in_le32(const volatile unsigned __iomem *addr)
+static inline unsigned __in_le32(const volatile unsigned __iomem *addr)
 {
 	unsigned ret;
 
@@ -315,7 +325,7 @@ static inline unsigned in_le32(const volatile unsigned __iomem *addr)
 	return ret;
 }
 
-static inline unsigned in_be32(const volatile unsigned __iomem *addr)
+static inline unsigned __in_be32(const volatile unsigned __iomem *addr)
 {
 	unsigned ret;
 
@@ -324,21 +334,21 @@ static inline unsigned in_be32(const volatile unsigned __iomem *addr)
 	return ret;
 }
 
-static inline void out_le32(volatile unsigned __iomem *addr, int val)
+static inline void __out_le32(volatile unsigned __iomem *addr, int val)
 {
 	__asm__ __volatile__("sync; stwbrx %1,0,%2" : "=m" (*addr)
 			     : "r" (val), "r" (addr));
 	get_paca()->io_sync = 1;
 }
 
-static inline void out_be32(volatile unsigned __iomem *addr, int val)
+static inline void __out_be32(volatile unsigned __iomem *addr, int val)
 {
 	__asm__ __volatile__("sync; stw%U0%X0 %1,%0"
 			     : "=m" (*addr) : "r" (val));
 	get_paca()->io_sync = 1;
 }
 
-static inline unsigned long in_le64(const volatile unsigned long __iomem *addr)
+static inline unsigned long __in_le64(const volatile unsigned long __iomem *addr)
 {
 	unsigned long tmp, ret;
 
@@ -358,7 +368,7 @@ static inline unsigned long in_le64(const volatile unsigned long __iomem *addr)
 	return ret;
 }
 
-static inline unsigned long in_be64(const volatile unsigned long __iomem *addr)
+static inline unsigned long __in_be64(const volatile unsigned long __iomem *addr)
 {
 	unsigned long ret;
 
@@ -367,7 +377,7 @@ static inline unsigned long in_be64(const volatile unsigned long __iomem *addr)
 	return ret;
 }
 
-static inline void out_le64(volatile unsigned long __iomem *addr, unsigned long val)
+static inline void __out_le64(volatile unsigned long __iomem *addr, unsigned long val)
 {
 	unsigned long tmp;
 
@@ -385,15 +395,13 @@ static inline void out_le64(volatile unsigned long __iomem *addr, unsigned long
 	get_paca()->io_sync = 1;
 }
 
-static inline void out_be64(volatile unsigned long __iomem *addr, unsigned long val)
+static inline void __out_be64(volatile unsigned long __iomem *addr, unsigned long val)
 {
 	__asm__ __volatile__("sync; std%U0%X0 %1,%0" : "=m" (*addr) : "r" (val));
 	get_paca()->io_sync = 1;
 }
 
-#ifndef CONFIG_PPC_ISERIES 
 #include <asm/eeh.h>
-#endif
 
 /**
  *	check_signature		-	find BIOS signatures
@@ -409,7 +417,6 @@ static inline int check_signature(const volatile void __iomem * io_addr,
 	const unsigned char *signature, int length)
 {
 	int retval = 0;
-#ifndef CONFIG_PPC_ISERIES 
 	do {
 		if (readb(io_addr) != *signature)
 			goto out;
@@ -419,7 +426,6 @@ static inline int check_signature(const volatile void __iomem * io_addr,
 	} while (length);
 	retval = 1;
 out:
-#endif
 	return retval;
 }
 
diff --git a/include/asm-powerpc/iseries/iseries_io.h b/include/asm-powerpc/iseries/iseries_io.h
deleted file mode 100644
index f29009bd63c9..000000000000
--- a/include/asm-powerpc/iseries/iseries_io.h
+++ /dev/null
@@ -1,60 +0,0 @@
-#ifndef _ASM_POWERPC_ISERIES_ISERIES_IO_H
-#define _ASM_POWERPC_ISERIES_ISERIES_IO_H
-
-
-#ifdef CONFIG_PPC_ISERIES
-#include <linux/types.h>
-/*
- * Created by Allan Trautman on Thu Dec 28 2000.
- *
- * Remaps the io.h for the iSeries Io
- * Copyright (C) 2000  Allan H Trautman, IBM Corporation
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the:
- * Free Software Foundation, Inc.,
- * 59 Temple Place, Suite 330,
- * Boston, MA  02111-1307  USA
- *
- * Change Activity:
- *   Created December 28, 2000
- * End Change Activity
- */
-
-#ifdef CONFIG_PCI
-extern u8   iSeries_Read_Byte(const volatile void __iomem * IoAddress);
-extern u16  iSeries_Read_Word(const volatile void __iomem * IoAddress);
-extern u32  iSeries_Read_Long(const volatile void __iomem * IoAddress);
-extern void iSeries_Write_Byte(u8  IoData, volatile void __iomem * IoAddress);
-extern void iSeries_Write_Word(u16 IoData, volatile void __iomem * IoAddress);
-extern void iSeries_Write_Long(u32 IoData, volatile void __iomem * IoAddress);
-
-extern void iSeries_memset_io(volatile void __iomem *dest, char x, size_t n);
-extern void iSeries_memcpy_toio(volatile void __iomem *dest, void *source,
-		size_t n);
-extern void iSeries_memcpy_fromio(void *dest,
-		const volatile void __iomem *source, size_t n);
-#else
-static inline u8 iSeries_Read_Byte(const volatile void __iomem *IoAddress)
-{
-	return 0xff;
-}
-
-static inline void iSeries_Write_Byte(u8 IoData,
-		volatile void __iomem *IoAddress)
-{
-}
-#endif	/* CONFIG_PCI */
-
-#endif /* CONFIG_PPC_ISERIES */
-#endif /* _ASM_POWERPC_ISERIES_ISERIES_IO_H */
-- 
cgit v1.2.3


From 2954da897c40de0f3abdd6a100f2978f30d04068 Mon Sep 17 00:00:00 2001
From: Michael Ellerman <michael@ellerman.id.au>
Date: Thu, 21 Sep 2006 18:21:35 +1000
Subject: [POWERPC] Remove DISCONTIGMEM cruft from page.h

This looks like cruft to me, these functions don't exist AFAICT,
and I can't see that it's possible to even enable DISCONTIGMEM on
powerpc anymore. CC'ing some folks who might know better, based on
the who-touched-it-last principle.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
---
 include/asm-powerpc/page.h | 6 ------
 1 file changed, 6 deletions(-)

(limited to 'include')

diff --git a/include/asm-powerpc/page.h b/include/asm-powerpc/page.h
index fb597b37c2a2..b4d38b0b15f8 100644
--- a/include/asm-powerpc/page.h
+++ b/include/asm-powerpc/page.h
@@ -55,12 +55,6 @@
 #define PAGE_OFFSET     ASM_CONST(CONFIG_KERNEL_START)
 #define KERNELBASE      (PAGE_OFFSET + PHYSICAL_START)
 
-#ifdef CONFIG_DISCONTIGMEM
-#define page_to_pfn(page)	discontigmem_page_to_pfn(page)
-#define pfn_to_page(pfn)	discontigmem_pfn_to_page(pfn)
-#define pfn_valid(pfn)		discontigmem_pfn_valid(pfn)
-#endif
-
 #ifdef CONFIG_FLATMEM
 #define pfn_valid(pfn)		((pfn) < max_mapnr)
 #endif
-- 
cgit v1.2.3


From 7d452c326c2ac879aced884411a0fe3ba75d9c87 Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Date: Thu, 21 Sep 2006 12:29:51 +0200
Subject: [POWERPC] powerpc: fix building gdb against asm/ptrace.h

Ulrich Weigand found a bug with the current version of the
asm-powerpc/ptrace.h that prevents building at least the
SPU target version of gdb, since some ptrace opcodes are
not defined.

The problem seems to have originated in the merging of 32 and
64 bit versions of that file, the problem is that some opcodes
are only valid on 64 bit kernels, but are also used by 32 bit
programs, so they can't depends on the __powerpc64__ symbol.

Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
---
 include/asm-powerpc/ptrace.h | 4 ----
 1 file changed, 4 deletions(-)

(limited to 'include')

diff --git a/include/asm-powerpc/ptrace.h b/include/asm-powerpc/ptrace.h
index dc4cb9cc73a1..4435efe85d0e 100644
--- a/include/asm-powerpc/ptrace.h
+++ b/include/asm-powerpc/ptrace.h
@@ -215,12 +215,10 @@ do {									      \
 #define PTRACE_GETVRREGS	18
 #define PTRACE_SETVRREGS	19
 
-#ifndef __powerpc64__
 /* Get/set all the upper 32-bits of the SPE registers, accumulator, and
  * spefscr, in one go */
 #define PTRACE_GETEVRREGS	20
 #define PTRACE_SETEVRREGS	21
-#endif /* __powerpc64__ */
 
 /*
  * Get or set a debug register. The first 16 are DABR registers and the
@@ -235,7 +233,6 @@ do {									      \
 #define PPC_PTRACE_GETFPREGS	0x97	/* Get FPRs 0 - 31 */
 #define PPC_PTRACE_SETFPREGS	0x96	/* Set FPRs 0 - 31 */
 
-#ifdef __powerpc64__
 /* Calls to trace a 64bit program from a 32bit program */
 #define PPC_PTRACE_PEEKTEXT_3264 0x95
 #define PPC_PTRACE_PEEKDATA_3264 0x94
@@ -243,6 +240,5 @@ do {									      \
 #define PPC_PTRACE_POKEDATA_3264 0x92
 #define PPC_PTRACE_PEEKUSR_3264  0x91
 #define PPC_PTRACE_POKEUSR_3264  0x90
-#endif /* __powerpc64__ */
 
 #endif /* _ASM_POWERPC_PTRACE_H */
-- 
cgit v1.2.3