[PATCH] parisc arch update

This update covers a lot of changes to arch/parisc and parisc-specific
drivers.

 - irq_return_t changes
 - more work on the module loader (James Bottomley)
 - rewrite of led.c by Helge Deller
 - many miscellaneous updates

9 files changed, 48 insertions, 12 deletions

diff --git a/include/asm-parisc/compat.h b/include/asm-parisc/compat.h
index 3a3ac178498d..f888716df94f 100644
--- a/include/asm-parisc/compat.h
+++ b/include/asm-parisc/compat.h
@@ -4,6 +4,7 @@
  * Architecture specific compatibility types
  */
 #include <linux/types.h>
+#include <linux/sched.h>
 
 #define COMPAT_USER_HZ 100
 
@@ -124,4 +125,12 @@ static inline void *compat_ptr(compat_uptr_t uptr)
 	return (void *)(unsigned long)uptr;
 }
 
+static __inline__ void *compat_alloc_user_space(long len)
+{
+	struct pt_regs *regs = &current->thread.regs;
+	unsigned long usp = regs->gr[30];
+
+	return (void *)(usp + len);
+}
+
 #endif /* _ASM_PARISC_COMPAT_H */
diff --git a/include/asm-parisc/elf.h b/include/asm-parisc/elf.h
index b1d2eaa70e1b..b9f6090b78f2 100644
--- a/include/asm-parisc/elf.h
+++ b/include/asm-parisc/elf.h
@@ -178,10 +178,11 @@
 #define PF_HP_SBP		0x08000000
 
 /*
- * The following definitions are those for 32-bit ELF binaries on a 32-bit kernel
- * and for 64-bit binaries on a 64-bit kernel.  To run 32-bit binaries on a 64-bit
- * kernel, arch/parisc64/kernel/binfmt_elf32.c defines these macros appropriately
- * and then #includes binfmt_elf.c, which then includes this file.
+ * The following definitions are those for 32-bit ELF binaries on a 32-bit
+ * kernel and for 64-bit binaries on a 64-bit kernel.  To run 32-bit binaries
+ * on a 64-bit kernel, arch/parisc64/kernel/binfmt_elf32.c defines these
+ * macros appropriately and then #includes binfmt_elf.c, which then includes
+ * this file.
  */
 #ifndef ELF_CLASS
 
@@ -267,6 +268,8 @@ typedef elf_greg_t elf_gregset_t[ELF_NGREG];
 typedef double elf_fpreg_t;
 typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
 
+struct task_struct;
+
 extern int dump_task_fpu (struct task_struct *, elf_fpregset_t *);
 #define ELF_CORE_COPY_FPREGS(tsk, elf_fpregs) dump_task_fpu(tsk, elf_fpregs)
 
diff --git a/include/asm-parisc/fixmap.h b/include/asm-parisc/fixmap.h
index cbf916e4569b..52fc100f6b79 100644
--- a/include/asm-parisc/fixmap.h
+++ b/include/asm-parisc/fixmap.h
@@ -4,9 +4,16 @@
 /*
  * Allocate a 8 Mb temporary mapping area for copy_user_page/clear_user_page.
  * This area needs to be aligned on a 8 Mb boundary.
+ *
+ * FIXME:
+ *
+ * For PA-RISC, this has no meaning.  It is starting to be used on x86
+ * for vsyscalls.  PA will probably do this using space registers.
  */
 
+/* This TMPALIAS_MAP_START reserves some of the memory where the
+ * FIXMAP region is on x86.  It's only real use is to constrain
+ * VMALLOC_END (see pktable.h) */
 #define TMPALIAS_MAP_START (__PAGE_OFFSET - 0x01000000)
-#define FIXADDR_START   ((unsigned long)TMPALIAS_MAP_START)
 
 #endif
diff --git a/include/asm-parisc/module.h b/include/asm-parisc/module.h
index acf6770cd5d3..22c916b738f0 100644
--- a/include/asm-parisc/module.h
+++ b/include/asm-parisc/module.h
@@ -24,10 +24,10 @@
 
 struct mod_arch_specific
 {
-	unsigned long got_offset;
-	unsigned long fdesc_offset, fdesc_count;
-	unsigned long stub_offset;
-	unsigned long stub_count;
+	unsigned long got_offset, got_count, got_max;
+	unsigned long fdesc_offset, fdesc_count, fdesc_max;
+	unsigned long stub_offset, stub_count, stub_max;
+	unsigned long init_stub_offset, init_stub_count, init_stub_max;
 };
 
 #endif /* _ASM_PARISC_MODULE_H */
diff --git a/include/asm-parisc/pdc_chassis.h b/include/asm-parisc/pdc_chassis.h
index df844ae34916..7378770f02eb 100644
--- a/include/asm-parisc/pdc_chassis.h
+++ b/include/asm-parisc/pdc_chassis.h
@@ -35,7 +35,7 @@
  */
 
 int pdc_chassis_send_status(int message);
-void __init parisc_pdc_chassis_init(void);
+void parisc_pdc_chassis_init(void);
 
 
 /*
diff --git a/include/asm-parisc/pgtable.h b/include/asm-parisc/pgtable.h
index 32b19f8bafa7..0262435e1514 100644
--- a/include/asm-parisc/pgtable.h
+++ b/include/asm-parisc/pgtable.h
@@ -109,7 +109,8 @@ extern  void *vmalloc_start;
 #define PCXL_DMA_MAP_SIZE   (8*1024*1024)
 #define VMALLOC_START   ((unsigned long)vmalloc_start)
 #define VMALLOC_VMADDR(x) ((unsigned long)(x))
-#define VMALLOC_END	(FIXADDR_START)
+/* this is a fixmap remnant, see fixmap.h */
+#define VMALLOC_END	(TMPALIAS_MAP_START)
 #endif
 
 /* NB: The tlb miss handlers make certain assumptions about the order */
@@ -122,6 +123,7 @@ extern  void *vmalloc_start;
 #define _PAGE_GATEWAY_BIT  28   /* (0x008) privilege promotion allowed */
 #define _PAGE_DMB_BIT      27   /* (0x010) Data Memory Break enable (B bit) */
 #define _PAGE_DIRTY_BIT    26   /* (0x020) Page Dirty (D bit) */
+#define _PAGE_FILE_BIT	_PAGE_DIRTY_BIT	/* overload this bit */
 #define _PAGE_REFTRAP_BIT  25   /* (0x040) Page Ref. Trap enable (T bit) */
 #define _PAGE_NO_CACHE_BIT 24   /* (0x080) Uncached Page (U bit) */
 #define _PAGE_ACCESSED_BIT 23   /* (0x100) Software: Page Accessed */
@@ -135,6 +137,17 @@ extern  void *vmalloc_start;
 
 #define xlate_pabit(x) (31 - x)
 
+/* this defines the shift to the usable bits in the PTE it is set so
+ * that the valid bits _PAGE_PRESENT_BIT and _PAGE_USER_BIT are set
+ * to zero */
+#define PTE_SHIFT	   	xlate_pabit(_PAGE_USER_BIT)
+
+/* this is how many bits may be used by the file functions */
+#define PTE_FILE_MAX_BITS	(BITS_PER_LONG - PTE_SHIFT)
+
+#define pte_to_pgoff(pte) (pte_val(pte) >> PTE_SHIFT)
+#define pgoff_to_pte(off) ((pte_t) { ((off) << PTE_SHIFT) | _PAGE_FILE })
+
 #define _PAGE_READ     (1 << xlate_pabit(_PAGE_READ_BIT))
 #define _PAGE_WRITE    (1 << xlate_pabit(_PAGE_WRITE_BIT))
 #define _PAGE_RW       (_PAGE_READ | _PAGE_WRITE)
@@ -148,6 +161,7 @@ extern  void *vmalloc_start;
 #define _PAGE_PRESENT  (1 << xlate_pabit(_PAGE_PRESENT_BIT))
 #define _PAGE_FLUSH    (1 << xlate_pabit(_PAGE_FLUSH_BIT))
 #define _PAGE_USER     (1 << xlate_pabit(_PAGE_USER_BIT))
+#define _PAGE_FILE     (1 << xlate_pabit(_PAGE_FILE_BIT))
 
 #define _PAGE_TABLE	(_PAGE_PRESENT | _PAGE_READ | _PAGE_WRITE |  _PAGE_DIRTY | _PAGE_ACCESSED)
 #define _PAGE_CHG_MASK	(PAGE_MASK | _PAGE_ACCESSED | _PAGE_DIRTY)
@@ -256,6 +270,8 @@ extern inline int pte_read(pte_t pte)		{ return pte_val(pte) & _PAGE_READ; }
 extern inline int pte_dirty(pte_t pte)		{ return pte_val(pte) & _PAGE_DIRTY; }
 extern inline int pte_young(pte_t pte)		{ return pte_val(pte) & _PAGE_ACCESSED; }
 extern inline int pte_write(pte_t pte)		{ return pte_val(pte) & _PAGE_WRITE; }
+extern inline int pte_file(pte_t pte)		{ return pte_val(pte) & _PAGE_FILE; }
+extern inline int pte_user(pte_t pte) 		{ return pte_val(pte) & _PAGE_USER; }
 
 extern inline pte_t pte_rdprotect(pte_t pte)	{ pte_val(pte) &= ~_PAGE_READ; return pte; }
 extern inline pte_t pte_mkclean(pte_t pte)	{ pte_val(pte) &= ~_PAGE_DIRTY; return pte; }
diff --git a/include/asm-parisc/processor.h b/include/asm-parisc/processor.h
index 30bdf987b3a5..55c38a184b8c 100644
--- a/include/asm-parisc/processor.h
+++ b/include/asm-parisc/processor.h
@@ -92,6 +92,7 @@ struct cpuinfo_parisc {
 	unsigned long fp_model;
 	unsigned int state;
 	struct parisc_device *dev;
+	unsigned long loops_per_jiffy;
 };
 
 extern struct system_cpuinfo_parisc boot_cpu_data;
diff --git a/include/asm-parisc/timex.h b/include/asm-parisc/timex.h
index 3808765c841a..a228b9167321 100644
--- a/include/asm-parisc/timex.h
+++ b/include/asm-parisc/timex.h
@@ -7,7 +7,6 @@
 #define _ASMPARISC_TIMEX_H
 
 #include <asm/system.h>
-#include <linux/time.h>
 
 #define CLOCK_TICK_RATE	1193180 /* Underlying HZ */
 
diff --git a/include/asm-parisc/unistd.h b/include/asm-parisc/unistd.h
index 9aa3ef58c78b..410a871f910c 100644
--- a/include/asm-parisc/unistd.h
+++ b/include/asm-parisc/unistd.h
@@ -720,6 +720,7 @@
 #define __NR_epoll_ctl		(__NR_Linux + 225)
 #define __NR_epoll_wait		(__NR_Linux + 226)
 #define __NR_remap_file_pages	(__NR_Linux + 227)
+#define __NR_semtimedop		(__NR_Linux + 228)
 
 
 #define __NR_Linux_syscalls     228