From 23caa503d7503e367d3e089275de79b20960b14b Mon Sep 17 00:00:00 2001 From: Peter Bergner Date: Tue, 25 Mar 2003 09:39:56 -0600 Subject: Forward port of 2.4 ppc64 signal changes. --- include/asm-ppc64/processor.h | 10 +++++----- include/asm-ppc64/ptrace.h | 5 ++--- include/asm-ppc64/sigcontext.h | 6 +++++- include/asm-ppc64/types.h | 5 +++++ include/asm-ppc64/ucontext.h | 10 ++++++---- 5 files changed, 23 insertions(+), 13 deletions(-) (limited to 'include') diff --git a/include/asm-ppc64/processor.h b/include/asm-ppc64/processor.h index 3700f3eb0430..01d7213ab61f 100644 --- a/include/asm-ppc64/processor.h +++ b/include/asm-ppc64/processor.h @@ -469,8 +469,6 @@ #define IOCR_SPC 0x00000001 -/* Processor Version Register */ - /* Processor Version Register (PVR) field extraction */ #define PVR_VER(pvr) (((pvr) >> 16) & 0xFFFF) /* Version field */ @@ -654,8 +652,10 @@ struct thread_struct { struct pt_regs *regs; /* Pointer to saved register state */ mm_segment_t fs; /* for get_fs() validation */ double fpr[32]; /* Complete floating point set */ - unsigned long fpscr; /* Floating point status */ - unsigned int fpexc_mode; /* Floating-point exception mode */ + unsigned long fpscr; /* Floating point status (plus pad) */ + unsigned long fpexc_mode; /* Floating-point exception mode */ + unsigned long saved_msr; /* Save MSR across signal handlers */ + unsigned long saved_softe; /* Ditto for Soft Enable/Disable */ }; #define INIT_SP (sizeof(init_stack) + (unsigned long) &init_stack) @@ -702,7 +702,7 @@ static inline unsigned int __unpack_fe01(unsigned long msr_bits) return ((msr_bits & MSR_FE0) >> 10) | ((msr_bits & MSR_FE1) >> 8); } -static inline unsigned int __pack_fe01(unsigned int fpmode) +static inline unsigned long __pack_fe01(unsigned int fpmode) { return ((fpmode << 10) & MSR_FE0) | ((fpmode << 8) & MSR_FE1); } diff --git a/include/asm-ppc64/ptrace.h b/include/asm-ppc64/ptrace.h index 17d15d0ad813..0fc245bde03a 100644 --- a/include/asm-ppc64/ptrace.h +++ b/include/asm-ppc64/ptrace.h @@ -64,9 +64,8 @@ struct pt_regs32 { #define STACK_FRAME_OVERHEAD 112 /* size of minimum stack frame */ -/* Size of stack frame allocated when calling signal handler. */ -/* FIXME: What should this be on 64-bit kernel (64 for 32-bit) */ -#define __SIGNAL_FRAMESIZE 64 +/* Size of dummy stack frame allocated when calling signal handler. */ +#define __SIGNAL_FRAMESIZE 128 #define __SIGNAL_FRAMESIZE32 64 #define instruction_pointer(regs) ((regs)->nip) diff --git a/include/asm-ppc64/sigcontext.h b/include/asm-ppc64/sigcontext.h index 467be1a3d86b..2ea36ea8279f 100644 --- a/include/asm-ppc64/sigcontext.h +++ b/include/asm-ppc64/sigcontext.h @@ -9,6 +9,8 @@ */ #include +#include + struct sigcontext { unsigned long _unused[4]; @@ -16,7 +18,9 @@ struct sigcontext { int _pad0; unsigned long handler; unsigned long oldmask; - struct pt_regs *regs; + struct pt_regs *regs; + elf_gregset_t gp_regs; + elf_fpregset_t fp_regs; }; #endif /* _ASM_PPC64_SIGCONTEXT_H */ diff --git a/include/asm-ppc64/types.h b/include/asm-ppc64/types.h index 08b5757e3d07..0fb0412a5394 100644 --- a/include/asm-ppc64/types.h +++ b/include/asm-ppc64/types.h @@ -66,6 +66,11 @@ typedef __vector128 vector128; typedef u32 dma_addr_t; typedef u64 dma64_addr_t; +typedef struct { + unsigned long entry; + unsigned long toc; + unsigned long env; +} func_descr_t; #endif /* __ASSEMBLY__ */ #endif /* __KERNEL__ */ diff --git a/include/asm-ppc64/ucontext.h b/include/asm-ppc64/ucontext.h index 09e30c91d24e..ef8cc5b37542 100644 --- a/include/asm-ppc64/ucontext.h +++ b/include/asm-ppc64/ucontext.h @@ -1,8 +1,9 @@ #ifndef _ASMPPC64_UCONTEXT_H #define _ASMPPC64_UCONTEXT_H -/* Copied from i386. - * +#include + +/* * 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 @@ -13,8 +14,9 @@ struct ucontext { unsigned long uc_flags; struct ucontext *uc_link; stack_t uc_stack; - struct sigcontext uc_mcontext; - sigset_t uc_sigmask; /* mask last for extensibility */ + sigset_t uc_sigmask; + sigset_t __unsued[15]; /* Allow for uc_sigmask growth */ + struct sigcontext uc_mcontext; /* last for extensibility */ }; #endif /* _ASMPPC64_UCONTEXT_H */ -- cgit v1.2.3 From 8c7da99cc566cdfc2a5ff5eeb1c6e490ef14c74f Mon Sep 17 00:00:00 2001 From: Peter Bergner Date: Tue, 25 Mar 2003 10:31:09 -0600 Subject: Forward port of 2.4 ppc64 /proc/ppc64/systemcfg changes --- arch/ppc64/kernel/LparData.c | 2 +- arch/ppc64/kernel/Makefile | 3 +- arch/ppc64/kernel/asm-offsets.c | 6 +- arch/ppc64/kernel/chrp_setup.c | 1 + arch/ppc64/kernel/head.S | 100 +++++++++++-------- arch/ppc64/kernel/htab.c | 10 +- arch/ppc64/kernel/iSeries_setup.c | 48 +++++----- arch/ppc64/kernel/misc.S | 26 +++-- arch/ppc64/kernel/pacaData.c | 5 +- arch/ppc64/kernel/pci_dma.c | 8 +- arch/ppc64/kernel/proc_ppc64.c | 177 ++++++++++++++++++++++++++++++++++ arch/ppc64/kernel/prom.c | 195 +++++++++++++++++++++++++------------- arch/ppc64/kernel/rtas-proc.c | 2 +- arch/ppc64/kernel/rtas.c | 4 +- arch/ppc64/kernel/rtas_flash.c | 8 +- arch/ppc64/kernel/setup.c | 43 ++++----- arch/ppc64/kernel/smp.c | 4 +- arch/ppc64/kernel/udbg.c | 2 +- arch/ppc64/kernel/xics.c | 4 +- arch/ppc64/xmon/xmon.c | 4 +- include/asm-ppc64/machdep.h | 2 + include/asm-ppc64/mmu.h | 7 ++ include/asm-ppc64/naca.h | 50 ++++++---- include/asm-ppc64/page.h | 34 ++++--- include/asm-ppc64/proc_fs.h | 13 ++- include/asm-ppc64/rtas.h | 2 - include/asm-ppc64/systemcfg.h | 109 +++++++++++++++++++++ 27 files changed, 641 insertions(+), 228 deletions(-) create mode 100644 arch/ppc64/kernel/proc_ppc64.c create mode 100644 include/asm-ppc64/systemcfg.h (limited to 'include') diff --git a/arch/ppc64/kernel/LparData.c b/arch/ppc64/kernel/LparData.c index 95f4cae62d50..813780e2bd74 100644 --- a/arch/ppc64/kernel/LparData.c +++ b/arch/ppc64/kernel/LparData.c @@ -61,7 +61,7 @@ struct HvReleaseData hvReleaseData = { 0xc8a5d9c4, /* desc = "HvRD" ebcdic */ sizeof(struct HvReleaseData), offsetof(struct naca_struct, xItVpdAreas), - (struct naca_struct *)(KERNELBASE+0x4000), /* 64-bit Naca address */ + (struct naca_struct *)(NACA_VIRT_ADDR), /* 64-bit Naca address */ 0x6000, /* offset of LparMap within loadarea (see head.S) */ 0, 1, /* tags inactive */ diff --git a/arch/ppc64/kernel/Makefile b/arch/ppc64/kernel/Makefile index 07ce29f83b0a..e7d82226ef1d 100644 --- a/arch/ppc64/kernel/Makefile +++ b/arch/ppc64/kernel/Makefile @@ -15,7 +15,7 @@ obj-$(CONFIG_PPC_ISERIES) += iSeries_pci.o iSeries_pci_reset.o \ iSeries_IoMmTable.o iSeries_irq.o \ iSeries_VpdInfo.o XmPciLpEvent.o \ HvCall.o HvLpConfig.o LparData.o mf_proc.o \ - proc_pmc.o iSeries_setup.o ItLpQueue.o hvCall.o \ + iSeries_setup.o ItLpQueue.o hvCall.o \ mf.o HvLpEvent.o iSeries_proc.o obj-$(CONFIG_PPC_PSERIES) += pSeries_pci.o pSeries_lpar.o pSeries_hvCall.o \ @@ -25,6 +25,7 @@ obj-$(CONFIG_PPC_PSERIES) += pSeries_pci.o pSeries_lpar.o pSeries_hvCall.o \ obj-y += open_pic.o xics.o pSeries_htab.o rtas.o \ chrp_setup.o i8259.o ras.o prom.o +obj-$(CONFIG_PROC_FS) += proc_ppc64.o obj-$(CONFIG_RTAS_FLASH) += rtas_flash.o obj-$(CONFIG_SMP) += smp.o obj-$(CONFIG_MODULES) += module.o ppc_ksyms.o diff --git a/arch/ppc64/kernel/asm-offsets.c b/arch/ppc64/kernel/asm-offsets.c index e05f3fa57f5b..b5797dda4c63 100644 --- a/arch/ppc64/kernel/asm-offsets.c +++ b/arch/ppc64/kernel/asm-offsets.c @@ -59,14 +59,14 @@ int main(void) /* naca */ DEFINE(PACA, offsetof(struct naca_struct, paca)); - DEFINE(DCACHEL1LINESIZE, offsetof(struct naca_struct, dCacheL1LineSize)); + DEFINE(DCACHEL1LINESIZE, offsetof(struct systemcfg, dCacheL1LineSize)); DEFINE(DCACHEL1LOGLINESIZE, offsetof(struct naca_struct, dCacheL1LogLineSize)); DEFINE(DCACHEL1LINESPERPAGE, offsetof(struct naca_struct, dCacheL1LinesPerPage)); - DEFINE(ICACHEL1LINESIZE, offsetof(struct naca_struct, iCacheL1LineSize)); + DEFINE(ICACHEL1LINESIZE, offsetof(struct systemcfg, iCacheL1LineSize)); DEFINE(ICACHEL1LOGLINESIZE, offsetof(struct naca_struct, iCacheL1LogLineSize)); DEFINE(ICACHEL1LINESPERPAGE, offsetof(struct naca_struct, iCacheL1LinesPerPage)); DEFINE(SLBSIZE, offsetof(struct naca_struct, slb_size)); - DEFINE(PLATFORM, offsetof(struct naca_struct, platform)); + DEFINE(PLATFORM, offsetof(struct systemcfg, platform)); /* paca */ DEFINE(PACA_SIZE, sizeof(struct paca_struct)); diff --git a/arch/ppc64/kernel/chrp_setup.c b/arch/ppc64/kernel/chrp_setup.c index 8b4fff8c7e13..8df0e2f55801 100644 --- a/arch/ppc64/kernel/chrp_setup.c +++ b/arch/ppc64/kernel/chrp_setup.c @@ -228,6 +228,7 @@ chrp_init(unsigned long r3, unsigned long r4, unsigned long r5, #endif /* CONFIG_BLK_DEV_INITRD */ #endif + ppc_md.ppc_machine = systemcfg->platform; ppc_md.setup_arch = chrp_setup_arch; ppc_md.setup_residual = NULL; ppc_md.get_cpuinfo = chrp_get_cpuinfo; diff --git a/arch/ppc64/kernel/head.S b/arch/ppc64/kernel/head.S index 40880a1310a3..042223eda354 100644 --- a/arch/ppc64/kernel/head.S +++ b/arch/ppc64/kernel/head.S @@ -29,6 +29,8 @@ #include #include #include +#include +#include #include #include #include @@ -49,8 +51,9 @@ * 0x0100 - 0x2fff : pSeries Interrupt prologs * 0x3000 - 0x3fff : Interrupt support * 0x4000 - 0x4fff : NACA - * 0x5000 - 0x5fff : Initial segment table + * 0x5000 - 0x5fff : SystemCfg * 0x6000 : iSeries and common interrupt prologs + * 0x9000 - 0x9fff : Initial segment table */ /* @@ -362,11 +365,11 @@ __start_interrupts: STD_EXCEPTION_PSERIES( 0x1300, InstructionBreakpoint ) /* Space for the naca. Architected to be located at real address - * 0x4000. Various tools rely on this location being fixed. + * NACA_PHYS_ADDR. Various tools rely on this location being fixed. * The first dword of the naca is required by iSeries LPAR to * point to itVpdAreas. On pSeries native, this value is not used. */ - . = 0x4000 + . = NACA_PHYS_ADDR .globl __end_interrupts .globl __start_naca __end_interrupts: @@ -380,21 +383,14 @@ __start_naca: .llong 0x0 .llong paca - /* - * Space for the initial segment table - * For LPAR, the hypervisor must fill in at least one entry - * before we get control (with relocate on) - */ - . = 0x5000 + . = SYSTEMCFG_PHYS_ADDR .globl __end_naca - .globl __start_stab + .globl __start_systemcfg __end_naca: -__start_stab: - - - . = 0x6000 - .globl __end_stab -__end_stab: +__start_systemcfg: + . = (SYSTEMCFG_PHYS_ADDR + PAGE_SIZE) + .globl __end_systemcfg +__end_systemcfg: #ifdef CONFIG_PPC_ISERIES /* @@ -408,7 +404,7 @@ __end_stab: .llong 1 /* # ESIDs to be mapped by hypervisor */ .llong 1 /* # memory ranges to be mapped by hypervisor */ - .llong 5 /* Page # of segment table within load area */ + .llong STAB0_PAGE /* Page # of segment table within load area */ .llong 0 /* Reserved */ .llong 0 /* Reserved */ .llong 0 /* Reserved */ @@ -529,6 +525,20 @@ SystemReset_FWNMI: MachineCheck_FWNMI: EXCEPTION_PROLOG_PSERIES(0x200, MachineCheck_common) + /* + * Space for the initial segment table + * For LPAR, the hypervisor must fill in at least one entry + * before we get control (with relocate on) + */ + . = STAB0_PHYS_ADDR + .globl __start_stab +__start_stab: + + . = (STAB0_PHYS_ADDR + PAGE_SIZE) + .globl __end_stab +__end_stab: + + /*** Common interrupt handlers ***/ STD_EXCEPTION_COMMON( 0x100, SystemReset, .SystemResetException ) @@ -1252,9 +1262,12 @@ _GLOBAL(__start_initialization_iSeries) addi r2,r2,0x4000 addi r2,r2,0x4000 + LOADADDR(r9,systemcfg) + SET_REG_TO_CONST(r4, SYSTEMCFG_VIRT_ADDR) + std r4,0(r9) /* set the systemcfg pointer */ + LOADADDR(r9,naca) - SET_REG_TO_CONST(r4, KERNELBASE) - addi r4,r4,0x4000 + SET_REG_TO_CONST(r4, NACA_VIRT_ADDR) std r4,0(r9) /* set the naca pointer */ /* Get the pointer to the segment table */ @@ -1285,13 +1298,18 @@ _GLOBAL(__start_initialization_pSeries) /* Relocate the TOC from a virt addr to a real addr */ sub r2,r2,r3 + /* setup the systemcfg pointer which is needed by prom_init */ + LOADADDR(r9,systemcfg) + sub r9,r9,r3 /* addr of the variable systemcfg */ + SET_REG_TO_CONST(r4, SYSTEMCFG_VIRT_ADDR) + sub r4,r4,r3 + std r4,0(r9) /* set the value of systemcfg */ + /* setup the naca pointer which is needed by prom_init */ LOADADDR(r9,naca) sub r9,r9,r3 /* addr of the variable naca */ - - SET_REG_TO_CONST(r4, KERNELBASE) + SET_REG_TO_CONST(r4, NACA_VIRT_ADDR) sub r4,r4,r3 - addi r4,r4,0x4000 std r4,0(r9) /* set the value of naca */ /* DRENG / PPPBBB Fix the following comment!!! -Peter */ @@ -1567,8 +1585,8 @@ _GLOBAL(__secondary_start) sc /* HvCall_setASR */ #else /* set the ASR */ - addi r3,0,0x4000 /* r3 = ptr to naca */ - lhz r3,PLATFORM(r3) /* r3 = platform flags */ + li r3,SYSTEMCFG_PHYS_ADDR /* r3 = ptr to systemcfg */ + lwz r3,PLATFORM(r3) /* r3 = platform flags */ cmpldi r3,PLATFORM_PSERIES_LPAR bne 98f mfspr r3,PVR @@ -1647,10 +1665,16 @@ _STATIC(start_here_pSeries) bl .reloc_offset mr r26,r3 + /* setup the systemcfg pointer which is needed by *tab_initialize */ + LOADADDR(r6,systemcfg) + sub r6,r6,r26 /* addr of the variable systemcfg */ + li r27,SYSTEMCFG_PHYS_ADDR + std r27,0(r6) /* set the value of systemcfg */ + /* setup the naca pointer which is needed by *tab_initialize */ LOADADDR(r6,naca) sub r6,r6,r26 /* addr of the variable naca */ - li r27,0x4000 + li r27,NACA_PHYS_ADDR std r27,0(r6) /* set the value of naca */ #ifdef CONFIG_HMT @@ -1714,15 +1738,12 @@ _STATIC(start_here_pSeries) sub r13,r13,r26 /* convert to physical addr */ mtspr SPRG3,r13 /* PPPBBB: Temp... -Peter */ - li r3,0x5000 - std r3,PACASTABREAL(r13) - LOADADDR(r24, __start_stab) - std r24,PACASTABVIRT(r13) + ld r3,PACASTABREAL(r13) ori r4,r3,1 /* turn on valid bit */ /* set the ASR */ - addi r3,0,0x4000 /* r3 = ptr to naca */ - lhz r3,PLATFORM(r3) /* r3 = platform flags */ + li r3,SYSTEMCFG_PHYS_ADDR /* r3 = ptr to systemcfg */ + lwz r3,PLATFORM(r3) /* r3 = platform flags */ cmpldi r3,PLATFORM_PSERIES_LPAR bne 98f mfspr r3,PVR @@ -1746,8 +1767,8 @@ _STATIC(start_here_pSeries) bl .stab_initialize bl .htab_initialize - addi r3,0,0x4000 /* r3 = ptr to naca */ - lhz r3,PLATFORM(r3) /* r3 = platform flags */ + li r3,SYSTEMCFG_PHYS_ADDR /* r3 = ptr to systemcfg */ + lwz r3,PLATFORM(r3) /* r3 = platform flags */ cmpldi r3,PLATFORM_PSERIES bne 98f LOADADDR(r6,_SDR1) /* Only if NOT LPAR */ @@ -1796,11 +1817,14 @@ _STATIC(start_here_common) addi r2,r2,0x4000 addi r2,r2,0x4000 - /* setup the naca pointer */ - LOADADDR(r9,naca) + /* setup the systemcfg pointer */ + LOADADDR(r9,systemcfg) + SET_REG_TO_CONST(r8, SYSTEMCFG_VIRT_ADDR) + std r8,0(r9) - SET_REG_TO_CONST(r8, KERNELBASE) - addi r8,r8,0x4000 + /* setup the naca pointer */ + LOADADDR(r9,naca) + SET_REG_TO_CONST(r8, NACA_VIRT_ADDR) std r8,0(r9) /* set the value of the naca ptr */ LOADADDR(r26, boot_cpuid) @@ -1951,7 +1975,7 @@ ioremap_dir: hardware_int_paca0: .space 8*4096 -/* 1 page segment table per cpu (max 48) */ +/* 1 page segment table per cpu (max 48, cpu0 allocated at STAB0_PHYS_ADDR) */ .globl stab_array stab_array: .space 4096 * 48 diff --git a/arch/ppc64/kernel/htab.c b/arch/ppc64/kernel/htab.c index 41e382f003db..effd5bed4d9b 100644 --- a/arch/ppc64/kernel/htab.c +++ b/arch/ppc64/kernel/htab.c @@ -101,7 +101,7 @@ create_pte_mapping(unsigned long start, unsigned long end, hpteg = ((hash & htab_data.htab_hash_mask)*HPTES_PER_GROUP); - if (naca->platform == PLATFORM_PSERIES_LPAR) + if (systemcfg->platform == PLATFORM_PSERIES_LPAR) ret = pSeries_lpar_hpte_insert(hpteg, va, (unsigned long)__v2a(addr) >> PAGE_SHIFT, 0, mode, 1, large); @@ -140,7 +140,7 @@ htab_initialize(void) htab_data.htab_num_ptegs = pteg_count; htab_data.htab_hash_mask = pteg_count - 1; - if (naca->platform == PLATFORM_PSERIES) { + if (systemcfg->platform == PLATFORM_PSERIES) { /* Find storage for the HPT. Must be contiguous in * the absolute address space. */ @@ -165,15 +165,15 @@ htab_initialize(void) mode_rw = _PAGE_ACCESSED | _PAGE_COHERENT | PP_RWXX; /* XXX we currently map kernel text rw, should fix this */ - if (cpu_has_largepage() && naca->physicalMemorySize > 256*MB) { + if (cpu_has_largepage() && systemcfg->physicalMemorySize > 256*MB) { create_pte_mapping((unsigned long)KERNELBASE, KERNELBASE + 256*MB, mode_rw, 0); create_pte_mapping((unsigned long)KERNELBASE + 256*MB, - KERNELBASE + (naca->physicalMemorySize), + KERNELBASE + (systemcfg->physicalMemorySize), mode_rw, 1); } else { create_pte_mapping((unsigned long)KERNELBASE, - KERNELBASE+(naca->physicalMemorySize), + KERNELBASE+(systemcfg->physicalMemorySize), mode_rw, 0); } } diff --git a/arch/ppc64/kernel/iSeries_setup.c b/arch/ppc64/kernel/iSeries_setup.c index 15e621d5368b..2dcbb3cdad34 100644 --- a/arch/ppc64/kernel/iSeries_setup.c +++ b/arch/ppc64/kernel/iSeries_setup.c @@ -561,13 +561,13 @@ static void __init build_iSeries_Memory_Map(void) * which should be equal to * nextPhysChunk */ - naca->physicalMemorySize = chunk_to_addr(nextPhysChunk); + systemcfg->physicalMemorySize = chunk_to_addr(nextPhysChunk); /* Bolt kernel mappings for all of memory */ - iSeries_bolt_kernel( 0, naca->physicalMemorySize ); + iSeries_bolt_kernel( 0, systemcfg->physicalMemorySize ); lmb_init(); - lmb_add( 0, naca->physicalMemorySize ); + lmb_add( 0, systemcfg->physicalMemorySize ); lmb_analyze(); /* ?? */ lmb_reserve( 0, __pa(klimit)); @@ -584,29 +584,28 @@ static void __init build_iSeries_Memory_Map(void) static void __init setup_iSeries_cache_sizes(void) { - unsigned i,n; - unsigned procIx = get_paca()->xLpPaca.xDynHvPhysicalProcIndex; + unsigned int i, n; + unsigned int procIx = get_paca()->xLpPaca.xDynHvPhysicalProcIndex; + + systemcfg->iCacheL1Size = xIoHriProcessorVpd[procIx].xInstCacheSize * 1024; + systemcfg->iCacheL1LineSize = xIoHriProcessorVpd[procIx].xInstCacheOperandSize; + systemcfg->dCacheL1Size = xIoHriProcessorVpd[procIx].xDataL1CacheSizeKB * 1024; + systemcfg->dCacheL1LineSize = xIoHriProcessorVpd[procIx].xDataCacheOperandSize; + naca->iCacheL1LinesPerPage = PAGE_SIZE / systemcfg->iCacheL1LineSize; + naca->dCacheL1LinesPerPage = PAGE_SIZE / systemcfg->dCacheL1LineSize; - naca->iCacheL1LineSize = xIoHriProcessorVpd[procIx].xInstCacheOperandSize; - naca->dCacheL1LineSize = xIoHriProcessorVpd[procIx].xDataCacheOperandSize; - naca->iCacheL1LinesPerPage = PAGE_SIZE / naca->iCacheL1LineSize; - naca->dCacheL1LinesPerPage = PAGE_SIZE / naca->dCacheL1LineSize; - i = naca->iCacheL1LineSize; + i = systemcfg->iCacheL1LineSize; n = 0; while ((i=(i/2))) ++n; naca->iCacheL1LogLineSize = n; - i = naca->dCacheL1LineSize; + + i = systemcfg->dCacheL1LineSize; n = 0; while ((i=(i/2))) ++n; naca->dCacheL1LogLineSize = n; - printk( "D-cache line size = %d (log = %d)\n", - (unsigned)naca->dCacheL1LineSize, - (unsigned)naca->dCacheL1LogLineSize ); - printk( "I-cache line size = %d (log = %d)\n", - (unsigned)naca->iCacheL1LineSize, - (unsigned)naca->iCacheL1LogLineSize ); - + printk( "D-cache line size = %d\n", (unsigned int)systemcfg->dCacheL1LineSize); + printk( "I-cache line size = %d\n", (unsigned int)systemcfg->iCacheL1LineSize); } /* @@ -648,6 +647,11 @@ iSeries_setup_arch(void) void * eventStack; unsigned procIx = get_paca()->xLpPaca.xDynHvPhysicalProcIndex; + /* Add an eye catcher and the systemcfg layout version number */ + strcpy(systemcfg->eye_catcher, "SYSTEMCFG:PPC64"); + systemcfg->version.major = SYSTEMCFG_MAJOR; + systemcfg->version.minor = SYSTEMCFG_MINOR; + /* Setup the Lp Event Queue */ /* Allocate a page for the Event Stack @@ -696,8 +700,8 @@ iSeries_setup_arch(void) printk("Time base frequency = %lu.%02lu\n", tbFreqMhz, tbFreqMhzHundreths ); - printk("Processor version = %x\n", - xIoHriProcessorVpd[procIx].xPVR ); + systemcfg->processor = xIoHriProcessorVpd[procIx].xPVR; + printk("Processor version = %x\n", systemcfg->processor); } @@ -726,9 +730,9 @@ void iSeries_setup_residual(struct seq_file *m) seq_printf(m,"time base\t: %lu.%02luMHz\n", tbFreqMhz, tbFreqMhzHundreths ); seq_printf(m,"i-cache\t\t: %d\n", - naca->iCacheL1LineSize); + systemcfg->iCacheL1LineSize); seq_printf(m,"d-cache\t\t: %d\n", - naca->dCacheL1LineSize); + systemcfg->dCacheL1LineSize); } diff --git a/arch/ppc64/kernel/misc.S b/arch/ppc64/kernel/misc.S index 521eecea20ca..57d27a49804b 100644 --- a/arch/ppc64/kernel/misc.S +++ b/arch/ppc64/kernel/misc.S @@ -170,12 +170,14 @@ _GLOBAL(flush_icache_range) */ LOADADDR(r10,naca) /* Get Naca address */ ld r10,0(r10) - lhz r7,DCACHEL1LINESIZE(r10) /* Get cache line size */ + LOADADDR(r11,systemcfg) /* Get systemcfg address */ + ld r11,0(r11) + lwz r7,DCACHEL1LINESIZE(r11)/* Get cache line size */ addi r5,r7,-1 andc r6,r3,r5 /* round low to line bdy */ subf r8,r6,r4 /* compute length */ add r8,r8,r5 /* ensure we get enough */ - lhz r9,DCACHEL1LOGLINESIZE(r10) /* Get log-2 of cache line size */ + lwz r9,DCACHEL1LOGLINESIZE(r10) /* Get log-2 of cache line size */ srw. r8,r8,r9 /* compute line count */ beqlr /* nothing to do? */ mtctr r8 @@ -186,12 +188,12 @@ _GLOBAL(flush_icache_range) /* Now invalidate the instruction cache */ - lhz r7,ICACHEL1LINESIZE(r10) /* Get Icache line size */ + lwz r7,ICACHEL1LINESIZE(r11) /* Get Icache line size */ addi r5,r7,-1 andc r6,r3,r5 /* round low to line bdy */ subf r8,r6,r4 /* compute length */ add r8,r8,r5 - lhz r9,ICACHEL1LOGLINESIZE(r10) /* Get log-2 of Icache line size */ + lwz r9,ICACHEL1LOGLINESIZE(r10) /* Get log-2 of Icache line size */ srw. r8,r8,r9 /* compute line count */ beqlr /* nothing to do? */ mtctr r8 @@ -217,12 +219,14 @@ _GLOBAL(flush_dcache_range) */ LOADADDR(r10,naca) /* Get Naca address */ ld r10,0(r10) - lhz r7,DCACHEL1LINESIZE(r10) /* Get dcache line size */ + LOADADDR(r11,systemcfg) /* Get systemcfg address */ + ld r11,0(r11) + lwz r7,DCACHEL1LINESIZE(r11) /* Get dcache line size */ addi r5,r7,-1 andc r6,r3,r5 /* round low to line bdy */ subf r8,r6,r4 /* compute length */ add r8,r8,r5 /* ensure we get enough */ - lhz r9,DCACHEL1LOGLINESIZE(r10) /* Get log-2 of dcache line size */ + lwz r9,DCACHEL1LOGLINESIZE(r10) /* Get log-2 of dcache line size */ srw. r8,r8,r9 /* compute line count */ beqlr /* nothing to do? */ mtctr r8 @@ -249,9 +253,11 @@ _GLOBAL(__flush_dcache_icache) /* Flush the dcache */ LOADADDR(r7,naca) ld r7,0(r7) + LOADADDR(r8,systemcfg) /* Get systemcfg address */ + ld r8,0(r8) clrrdi r3,r3,12 /* Page align */ - lhz r4,DCACHEL1LINESPERPAGE(r7) /* Get # dcache lines per page */ - lhz r5,DCACHEL1LINESIZE(r7) /* Get dcache line size */ + lwz r4,DCACHEL1LINESPERPAGE(r7) /* Get # dcache lines per page */ + lwz r5,DCACHEL1LINESIZE(r8) /* Get dcache line size */ mr r6,r3 mtctr r4 0: dcbst 0,r6 @@ -261,8 +267,8 @@ _GLOBAL(__flush_dcache_icache) /* Now invalidate the icache */ - lhz r4,ICACHEL1LINESPERPAGE(r7) /* Get # icache lines per page */ - lhz r5,ICACHEL1LINESIZE(r7) /* Get icache line size */ + lwz r4,ICACHEL1LINESPERPAGE(r7) /* Get # icache lines per page */ + lwz r5,ICACHEL1LINESIZE(r8) /* Get icache line size */ mtctr r4 1: icbi 0,r3 add r3,r3,r5 diff --git a/arch/ppc64/kernel/pacaData.c b/arch/ppc64/kernel/pacaData.c index ca4d4b1f70ed..4bd2b3a79ed3 100644 --- a/arch/ppc64/kernel/pacaData.c +++ b/arch/ppc64/kernel/pacaData.c @@ -20,6 +20,7 @@ #include struct naca_struct *naca; +struct systemcfg *systemcfg; /* The Paca is an array with one entry per processor. Each contains an * ItLpPaca, which contains the information shared between the @@ -65,9 +66,9 @@ struct naca_struct *naca; struct paca_struct paca[MAX_PACAS] __page_aligned = { #ifdef CONFIG_PPC_ISERIES - PACAINITDATA( 0, 1, &xItLpQueue, 0, 0xc000000000005000), + PACAINITDATA( 0, 1, &xItLpQueue, 0, STAB0_VIRT_ADDR), #else - PACAINITDATA( 0, 1, 0, 0x5000, 0xc000000000005000), + PACAINITDATA( 0, 1, 0, STAB0_PHYS_ADDR, STAB0_VIRT_ADDR), #endif PACAINITDATA( 1, 0, 0, 0, 0), PACAINITDATA( 2, 0, 0, 0, 0), diff --git a/arch/ppc64/kernel/pci_dma.c b/arch/ppc64/kernel/pci_dma.c index a617d2103971..7d3d22a29618 100644 --- a/arch/ppc64/kernel/pci_dma.c +++ b/arch/ppc64/kernel/pci_dma.c @@ -134,7 +134,7 @@ static inline struct TceTable *get_tce_table(struct pci_dev *dev) dev = ppc64_isabridge_dev; if (!dev) return NULL; - if (naca->platform == PLATFORM_ISERIES_LPAR) { + if (systemcfg->platform == PLATFORM_ISERIES_LPAR) { return ISERIES_DEVNODE(dev)->DevTceTable; } else { return PCI_GET_DN(dev)->tce_table; @@ -732,7 +732,7 @@ void create_tce_tables(void) { struct pci_dev *dev; struct device_node *dn, *mydn; - if (naca->platform == PLATFORM_PSERIES_LPAR) { + if (systemcfg->platform == PLATFORM_PSERIES_LPAR) { create_tce_tables_for_busesLP(&pci_root_buses); } else { @@ -773,7 +773,7 @@ void create_pci_bus_tce_table( unsigned long token ) { /* - Tce Table Share between buses, */ /* - Tce Table per logical slot. */ /*****************************************************************/ - if(naca->platform == PLATFORM_ISERIES_LPAR) { + if(systemcfg->platform == PLATFORM_ISERIES_LPAR) { struct iSeries_Device_Node* DevNode = (struct iSeries_Device_Node*)token; getTceTableParmsiSeries(DevNode,newTceTable); @@ -797,7 +797,7 @@ void create_pci_bus_tce_table( unsigned long token ) { dn = (struct device_node *)token; phb = dn->phb; - if (naca->platform == PLATFORM_PSERIES) + if (systemcfg->platform == PLATFORM_PSERIES) getTceTableParmsPSeries(phb, dn, newTceTable); else getTceTableParmsPSeriesLP(phb, dn, newTceTable); diff --git a/arch/ppc64/kernel/proc_ppc64.c b/arch/ppc64/kernel/proc_ppc64.c new file mode 100644 index 000000000000..b2dde2fc99f5 --- /dev/null +++ b/arch/ppc64/kernel/proc_ppc64.c @@ -0,0 +1,177 @@ +/* + * arch/ppc64/kernel/proc_ppc64.c + * + * Copyright (C) 2001 Mike Corrigan & Dave Engebretsen 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: + * 2001 : mikec : Created + * 2001/06/05 : engebret : Software event count support. + * 2003/02/13 : bergner : Move PMC code to pmc.c + * End Change Activity + */ + +#include +#include +#include + +#include +#include +#include +#include +#include +#include + +struct proc_ppc64_t proc_ppc64; + +void proc_ppc64_create_paca(int num); + +static loff_t page_map_seek( struct file *file, loff_t off, int whence); +static ssize_t page_map_read( struct file *file, char *buf, size_t nbytes, loff_t *ppos); +static int page_map_mmap( struct file *file, struct vm_area_struct *vma ); + +static struct file_operations page_map_fops = { + llseek: page_map_seek, + read: page_map_read, + mmap: page_map_mmap +}; + + +static int __init proc_ppc64_init(void) +{ + + printk(KERN_INFO "proc_ppc64: Creating /proc/ppc64/\n"); + + proc_ppc64.root = proc_mkdir("ppc64", 0); + if (!proc_ppc64.root) + return 0; + + proc_ppc64.naca = create_proc_entry("naca", S_IRUSR, proc_ppc64.root); + if ( proc_ppc64.naca ) { + proc_ppc64.naca->nlink = 1; + proc_ppc64.naca->data = naca; + proc_ppc64.naca->size = 4096; + proc_ppc64.naca->proc_fops = &page_map_fops; + } + + proc_ppc64.systemcfg = create_proc_entry("systemcfg", S_IFREG|S_IRUGO, proc_ppc64.root); + if ( proc_ppc64.systemcfg ) { + proc_ppc64.systemcfg->nlink = 1; + proc_ppc64.systemcfg->data = systemcfg; + proc_ppc64.systemcfg->size = 4096; + proc_ppc64.systemcfg->proc_fops = &page_map_fops; + } + + /* /proc/ppc64/paca/XX -- raw paca contents. Only readable to root */ + proc_ppc64.paca = proc_mkdir("paca", proc_ppc64.root); + if (proc_ppc64.paca) { + unsigned long i; + + for (i = 0; i < NR_CPUS; i++) { + if (!cpu_online(i)) + continue; + proc_ppc64_create_paca(i); + } + } + + /* Placeholder for rtas interfaces. */ + proc_ppc64.rtas = proc_mkdir("rtas", proc_ppc64.root); + + return 0; +} + + +/* + * NOTE: since paca data is always in flux the values will never be a consistant set. + * In theory it could be made consistent if we made the corresponding cpu + * copy the page for us (via an IPI). Probably not worth it. + * + */ +void proc_ppc64_create_paca(int num) +{ + struct proc_dir_entry *ent; + struct paca_struct *lpaca = paca + num; + char buf[16]; + + sprintf(buf, "%02x", num); + ent = create_proc_entry(buf, S_IRUSR, proc_ppc64.paca); + if ( ent ) { + ent->nlink = 1; + ent->data = lpaca; + ent->size = 4096; + ent->proc_fops = &page_map_fops; + } +} + + +static loff_t page_map_seek( struct file *file, loff_t off, int whence) +{ + loff_t new; + struct proc_dir_entry *dp = PDE(file->f_dentry->d_inode); + + switch(whence) { + case 0: + new = off; + break; + case 1: + new = file->f_pos + off; + break; + case 2: + new = dp->size + off; + break; + default: + return -EINVAL; + } + if ( new < 0 || new > dp->size ) + return -EINVAL; + return (file->f_pos = new); +} + +static ssize_t page_map_read( struct file *file, char *buf, size_t nbytes, loff_t *ppos) +{ + unsigned pos = *ppos; + struct proc_dir_entry *dp = PDE(file->f_dentry->d_inode); + + if ( pos >= dp->size ) + return 0; + if ( nbytes >= dp->size ) + nbytes = dp->size; + if ( pos + nbytes > dp->size ) + nbytes = dp->size - pos; + + copy_to_user( buf, (char *)dp->data + pos, nbytes ); + *ppos = pos + nbytes; + return nbytes; +} + +static int page_map_mmap( struct file *file, struct vm_area_struct *vma ) +{ + struct proc_dir_entry *dp = PDE(file->f_dentry->d_inode); + + vma->vm_flags |= VM_SHM | VM_LOCKED; + + if ((vma->vm_end - vma->vm_start) > dp->size) + return -EINVAL; + + remap_page_range( vma, vma->vm_start, __pa(dp->data), dp->size, vma->vm_page_prot ); + return 0; +} + +fs_initcall(proc_ppc64_init); + diff --git a/arch/ppc64/kernel/prom.c b/arch/ppc64/kernel/prom.c index 185691e288dc..5a41836c7e17 100644 --- a/arch/ppc64/kernel/prom.c +++ b/arch/ppc64/kernel/prom.c @@ -118,7 +118,6 @@ static interpret_func interpret_root_props; #define FB_MAX 8 #endif -static int ppc64_is_smp; struct prom_t prom = { 0, /* entry */ @@ -301,7 +300,9 @@ prom_initialize_naca(unsigned long mem) unsigned long offset = reloc_offset(); struct prom_t *_prom = PTRRELOC(&prom); struct naca_struct *_naca = RELOC(naca); + struct systemcfg *_systemcfg = RELOC(systemcfg); + /* NOTE: _naca->debug_switch is already initialized. */ #ifdef DEBUG_PROM prom_print(RELOC("prom_initialize_naca: start...\n")); #endif @@ -320,25 +321,35 @@ prom_initialize_naca(unsigned long mem) * d-cache and i-cache sizes... -Peter */ if ( num_cpus == 1 ) { - u32 size; + u32 size, lsize; call_prom(RELOC("getprop"), 4, 1, node, - RELOC("d-cache-line-size"), + RELOC("d-cache-size"), &size, sizeof(size)); - _naca->dCacheL1LineSize = size; - _naca->dCacheL1LogLineSize = __ilog2(size); - _naca->dCacheL1LinesPerPage = PAGE_SIZE / size; + call_prom(RELOC("getprop"), 4, 1, node, + RELOC("d-cache-line-size"), + &lsize, sizeof(lsize)); + + _systemcfg->dCacheL1Size = size; + _systemcfg->dCacheL1LineSize = lsize; + _naca->dCacheL1LogLineSize = __ilog2(lsize); + _naca->dCacheL1LinesPerPage = PAGE_SIZE/lsize; call_prom(RELOC("getprop"), 4, 1, node, - RELOC("i-cache-line-size"), + RELOC("i-cache-size"), &size, sizeof(size)); - _naca->iCacheL1LineSize = size; - _naca->iCacheL1LogLineSize = __ilog2(size); - _naca->iCacheL1LinesPerPage = PAGE_SIZE / size; + call_prom(RELOC("getprop"), 4, 1, node, + RELOC("i-cache-line-size"), + &lsize, sizeof(lsize)); + + _systemcfg->iCacheL1Size = size; + _systemcfg->iCacheL1LineSize = lsize; + _naca->iCacheL1LogLineSize = __ilog2(lsize); + _naca->iCacheL1LinesPerPage = PAGE_SIZE/lsize; - if (_naca->platform == PLATFORM_PSERIES_LPAR) { + if (_systemcfg->platform == PLATFORM_PSERIES_LPAR) { u32 pft_size[2]; call_prom(RELOC("getprop"), 4, 1, node, RELOC("ibm,pft-size"), @@ -408,20 +419,17 @@ prom_initialize_naca(unsigned long mem) } /* We gotta have at least 1 cpu... */ - if (num_cpus < 1) + if ( (_systemcfg->processorCount = num_cpus) < 1 ) PROM_BUG(); - if (num_cpus > 1) - RELOC(ppc64_is_smp) = 1; + _systemcfg->physicalMemorySize = lmb_phys_mem_size(); - _naca->physicalMemorySize = lmb_phys_mem_size(); - - if (_naca->platform == PLATFORM_PSERIES) { + if (_systemcfg->platform == PLATFORM_PSERIES) { unsigned long rnd_mem_size, pteg_count; /* round mem_size up to next power of 2 */ - rnd_mem_size = 1UL << __ilog2(_naca->physicalMemorySize); - if (rnd_mem_size < _naca->physicalMemorySize) + rnd_mem_size = 1UL << __ilog2(_systemcfg->physicalMemorySize); + if (rnd_mem_size < _systemcfg->physicalMemorySize) rnd_mem_size <<= 1; /* # pages / 2 */ @@ -442,49 +450,43 @@ prom_initialize_naca(unsigned long mem) */ _naca->slb_size = 64; -#ifdef DEBUG_PROM - prom_print(RELOC("naca->physicalMemorySize = 0x")); - prom_print_hex(_naca->physicalMemorySize); - prom_print_nl(); - - prom_print(RELOC("naca->pftSize = 0x")); - prom_print_hex(_naca->pftSize); - prom_print_nl(); - - prom_print(RELOC("naca->dCacheL1LineSize = 0x")); - prom_print_hex(_naca->dCacheL1LineSize); - prom_print_nl(); + /* Add an eye catcher and the systemcfg layout version number */ + strcpy(_systemcfg->eye_catcher, RELOC("SYSTEMCFG:PPC64")); + _systemcfg->version.major = SYSTEMCFG_MAJOR; + _systemcfg->version.minor = SYSTEMCFG_MINOR; + _systemcfg->processor = _get_PVR(); - prom_print(RELOC("naca->dCacheL1LogLineSize = 0x")); - prom_print_hex(_naca->dCacheL1LogLineSize); +#ifdef DEBUG_PROM + prom_print(RELOC("systemcfg->processorCount = 0x")); + prom_print_hex(_systemcfg->processorCount); prom_print_nl(); - prom_print(RELOC("naca->dCacheL1LinesPerPage = 0x")); - prom_print_hex(_naca->dCacheL1LinesPerPage); + prom_print(RELOC("systemcfg->physicalMemorySize = 0x")); + prom_print_hex(_systemcfg->physicalMemorySize); prom_print_nl(); - prom_print(RELOC("naca->iCacheL1LineSize = 0x")); - prom_print_hex(_naca->iCacheL1LineSize); + prom_print(RELOC("naca->pftSize = 0x")); + prom_print_hex(_naca->pftSize); prom_print_nl(); - prom_print(RELOC("naca->iCacheL1LogLineSize = 0x")); - prom_print_hex(_naca->iCacheL1LogLineSize); + prom_print(RELOC("systemcfg->dCacheL1LineSize = 0x")); + prom_print_hex(_systemcfg->dCacheL1LineSize); prom_print_nl(); - prom_print(RELOC("naca->iCacheL1LinesPerPage = 0x")); - prom_print_hex(_naca->iCacheL1LinesPerPage); + prom_print(RELOC("systemcfg->iCacheL1LineSize = 0x")); + prom_print_hex(_systemcfg->iCacheL1LineSize); prom_print_nl(); - prom_print(RELOC("naca->serialPortAddr = 0x")); + prom_print(RELOC("naca->serialPortAddr = 0x")); prom_print_hex(_naca->serialPortAddr); prom_print_nl(); - prom_print(RELOC("naca->interrupt_controller = 0x")); + prom_print(RELOC("naca->interrupt_controller = 0x")); prom_print_hex(_naca->interrupt_controller); prom_print_nl(); - prom_print(RELOC("naca->platform = 0x")); - prom_print_hex(_naca->platform); + prom_print(RELOC("systemcfg->platform = 0x")); + prom_print_hex(_systemcfg->platform); prom_print_nl(); prom_print(RELOC("prom_initialize_naca: end...\n")); @@ -549,7 +551,7 @@ prom_instantiate_rtas(void) unsigned long offset = reloc_offset(); struct prom_t *_prom = PTRRELOC(&prom); struct rtas_t *_rtas = PTRRELOC(&rtas); - struct naca_struct *_naca = RELOC(naca); + struct systemcfg *_systemcfg = RELOC(systemcfg); ihandle prom_rtas; u32 getprop_rval; @@ -565,7 +567,7 @@ prom_instantiate_rtas(void) RELOC("ibm,hypertas-functions"), hypertas_funcs, sizeof(hypertas_funcs))) > 0) { - _naca->platform = PLATFORM_PSERIES_LPAR; + _systemcfg->platform = PLATFORM_PSERIES_LPAR; } call_prom(RELOC("getprop"), @@ -582,7 +584,7 @@ prom_instantiate_rtas(void) * of physical memory (or within the RMO region) because RTAS * runs in 32-bit mode and relocate off. */ - if ( _naca->platform == PLATFORM_PSERIES_LPAR ) { + if ( _systemcfg->platform == PLATFORM_PSERIES_LPAR ) { struct lmb *_lmb = PTRRELOC(&lmb); rtas_region = min(_lmb->rmo_size, RTAS_INSTANTIATE_MAX); } @@ -773,7 +775,7 @@ prom_initialize_tce_table(void) align = (minalign < minsize) ? minsize : minalign; /* Carve out storage for the TCE table. */ - base = lmb_alloc(8UL << 20, 8UL << 20); + base = lmb_alloc(minsize, align); if ( !base ) { prom_print(RELOC("ERROR, cannot find space for TCE table.\n")); @@ -879,15 +881,20 @@ prom_hold_cpus(unsigned long mem) phandle node; unsigned long offset = reloc_offset(); char type[64], *path; + int cpuid = 0; extern void __secondary_hold(void); extern unsigned long __secondary_hold_spinloop; extern unsigned long __secondary_hold_acknowledge; unsigned long *spinloop = __v2a(&__secondary_hold_spinloop); unsigned long *acknowledge = __v2a(&__secondary_hold_acknowledge); unsigned long secondary_hold = (unsigned long)__v2a(*PTRRELOC((unsigned long *)__secondary_hold)); + struct systemcfg *_systemcfg = RELOC(systemcfg); struct paca_struct *_xPaca = PTRRELOC(&paca[0]); struct prom_t *_prom = PTRRELOC(&prom); + /* Initially, we must have one active CPU. */ + _systemcfg->processorCount = 1; + #ifdef DEBUG_PROM prom_print(RELOC("prom_hold_cpus: start...\n")); prom_print(RELOC(" 1) spinloop = 0x")); @@ -947,7 +954,12 @@ prom_hold_cpus(unsigned long mem) node, path, 255) < 0) continue; + cpuid++; + #ifdef DEBUG_PROM + prom_print_nl(); + prom_print(RELOC("cpuid = 0x")); + prom_print_hex(cpuid); prom_print_nl(); prom_print(RELOC("cpu hw idx = 0x")); prom_print_hex(reg); @@ -978,9 +990,11 @@ prom_hold_cpus(unsigned long mem) prom_print(RELOC(" 3) secondary_hold = 0x")); prom_print_hex(secondary_hold); prom_print_nl(); + prom_print(RELOC(" 3) cpuid = 0x")); + prom_print_hex(cpuid); prom_print_nl(); #endif - call_prom(RELOC("start-cpu"), 3, 0, node, secondary_hold, reg); + call_prom(RELOC("start-cpu"), 3, 0, node, secondary_hold, cpuid); prom_print(RELOC("...")); for ( i = 0 ; (i < 100000000) && (*acknowledge == ((unsigned long)-1)); i++ ) ; @@ -992,10 +1006,11 @@ prom_hold_cpus(unsigned long mem) prom_print_nl(); } #endif - if (*acknowledge == reg) { + if (*acknowledge == cpuid) { prom_print(RELOC("ok\n")); /* Set the number of active processors. */ - _xPaca[reg].active = 1; + _systemcfg->processorCount++; + _xPaca[cpuid].active = 1; } else { prom_print(RELOC("failed: ")); prom_print_hex(*acknowledge); @@ -1024,8 +1039,8 @@ prom_hold_cpus(unsigned long mem) } } _xPaca[i+1].active = 1; - RELOC(hmt_thread_data)[i].threadid = i+1; } + _systemcfg->processorCount *= 2; } else { prom_print(RELOC("Processor is not HMT capable\n")); } @@ -1046,20 +1061,21 @@ unsigned long __init prom_init(unsigned long r3, unsigned long r4, unsigned long pp, unsigned long r6, unsigned long r7) { + int chrp = 0; unsigned long mem; - ihandle prom_root, prom_cpu; + ihandle prom_mmu, prom_op, prom_root, prom_cpu; phandle cpu_pkg; unsigned long offset = reloc_offset(); - long l; + long l, sz; char *p, *d; unsigned long phys; u32 getprop_rval; - struct naca_struct *_naca = RELOC(naca); + struct systemcfg *_systemcfg = RELOC(systemcfg); struct paca_struct *_xPaca = PTRRELOC(&paca[0]); struct prom_t *_prom = PTRRELOC(&prom); /* Default machine type. */ - _naca->platform = PLATFORM_PSERIES; + _systemcfg->platform = PLATFORM_PSERIES; #if 0 /* Reset klimit to take into account the embedded system map */ @@ -1106,6 +1122,31 @@ prom_init(unsigned long r3, unsigned long r4, unsigned long pp, } _prom->encode_phys_size = (getprop_rval==1) ? 32 : 64; + + /* Find the OF version */ + prom_op = (ihandle)call_prom(RELOC("finddevice"), 1, 1, RELOC("/openprom")); + if (prom_op != (ihandle)-1) { + char model[64]; + sz = (long)call_prom(RELOC("getprop"), 4, 1, prom_op, + RELOC("model"), model, 64); + if (sz > 0) { + char *c; + /* hack to skip the ibm chrp firmware # */ + if ( strncmp(model,RELOC("IBM"),3) ) { + for (c = model; *c; c++) + if (*c >= '0' && *c <= '9') { + _prom->version = *c - '0'; + break; + } + } + else + chrp = 1; + } + } + if (_prom->version >= 3) + prom_print(RELOC("OF Version 3 detected.\n")); + + /* Determine which cpu is actually running right _now_ */ if ((long)call_prom(RELOC("getprop"), 4, 1, _prom->chosen, RELOC("cpu"), &getprop_rval, @@ -1149,6 +1190,8 @@ prom_init(unsigned long r3, unsigned long r4, unsigned long pp, mem = prom_bi_rec_reserve(mem); + mem = check_display(mem); + prom_instantiate_rtas(); /* Initialize some system info into the Naca early... */ @@ -1158,11 +1201,9 @@ prom_init(unsigned long r3, unsigned long r4, unsigned long pp, * following, regardless of whether we have an SMP * kernel or not. */ - if (RELOC(ppc64_is_smp)) + if (_systemcfg->processorCount > 1) prom_hold_cpus(mem); - mem = check_display(mem); - #ifdef DEBUG_PROM prom_print(RELOC("copying OF device tree...\n")); #endif @@ -1172,12 +1213,38 @@ prom_init(unsigned long r3, unsigned long r4, unsigned long pp, lmb_reserve(0, __pa(RELOC(klimit))); - if (_naca->platform == PLATFORM_PSERIES) + if (_systemcfg->platform == PLATFORM_PSERIES) prom_initialize_tce_table(); - prom_print(RELOC("Calling quiesce ...\n")); - call_prom(RELOC("quiesce"), 0, 0); - phys = KERNELBASE - offset; + if ((long) call_prom(RELOC("getprop"), 4, 1, + _prom->chosen, + RELOC("mmu"), + &getprop_rval, + sizeof(getprop_rval)) <= 0) { + prom_print(RELOC(" no MMU found\n")); + prom_exit(); + } + + /* We assume the phys. address size is 3 cells */ + RELOC(prom_mmu) = (ihandle)(unsigned long)getprop_rval; + + if ((long)call_prom(RELOC("call-method"), 4, 4, + RELOC("translate"), + prom_mmu, + (void *)(KERNELBASE - offset), + (void *)1) != 0) { + prom_print(RELOC(" (translate failed) ")); + } else { + prom_print(RELOC(" (translate ok) ")); + phys = (unsigned long)_prom->args.rets[3]; + } + + /* If OpenFirmware version >= 3, then use quiesce call */ + if (_prom->version >= 3) { + prom_print(RELOC("Calling quiesce ...\n")); + call_prom(RELOC("quiesce"), 0, 0); + phys = KERNELBASE - offset; + } prom_print(RELOC("returning from prom_init\n")); return phys; diff --git a/arch/ppc64/kernel/rtas-proc.c b/arch/ppc64/kernel/rtas-proc.c index 704c29f700d3..fb5f0b55f46e 100644 --- a/arch/ppc64/kernel/rtas-proc.c +++ b/arch/ppc64/kernel/rtas-proc.c @@ -201,7 +201,7 @@ void proc_rtas_init(void) struct proc_dir_entry *entry; rtas_node = find_devices("rtas"); - if ((rtas_node == NULL) || (naca->platform == PLATFORM_ISERIES_LPAR)) { + if ((rtas_node == NULL) || (systemcfg->platform == PLATFORM_ISERIES_LPAR)) { return; } diff --git a/arch/ppc64/kernel/rtas.c b/arch/ppc64/kernel/rtas.c index 0e46b23b1b6d..963726cde947 100644 --- a/arch/ppc64/kernel/rtas.c +++ b/arch/ppc64/kernel/rtas.c @@ -18,6 +18,7 @@ #include #include +#include #include #include #include @@ -27,7 +28,6 @@ #include #include -struct proc_dir_entry *rtas_proc_dir; /* /proc/ppc64/rtas dir */ struct flash_block_list_header rtas_firmware_flash_list = {0, 0}; /* @@ -283,7 +283,7 @@ rtas_halt(void) rtas_power_off(); } -EXPORT_SYMBOL(rtas_proc_dir); +EXPORT_SYMBOL(proc_ppc64); EXPORT_SYMBOL(rtas_firmware_flash_list); EXPORT_SYMBOL(rtas_token); EXPORT_SYMBOL(rtas_call); diff --git a/arch/ppc64/kernel/rtas_flash.c b/arch/ppc64/kernel/rtas_flash.c index 7cea487d5e62..636fee656773 100644 --- a/arch/ppc64/kernel/rtas_flash.c +++ b/arch/ppc64/kernel/rtas_flash.c @@ -210,7 +210,7 @@ int __init rtas_flash_init(void) { struct proc_dir_entry *ent = NULL; - if (!rtas_proc_dir) { + if (!proc_ppc64.rtas) { printk(KERN_WARNING "rtas proc dir does not already exist"); return -ENOENT; } @@ -218,7 +218,7 @@ int __init rtas_flash_init(void) if (rtas_token("ibm,update-flash-64-and-reboot") != RTAS_UNKNOWN_SERVICE) flash_possible = 1; - if ((ent = create_proc_entry(FIRMWARE_FLASH_NAME, S_IRUSR | S_IWUSR, rtas_proc_dir)) != NULL) { + if ((ent = create_proc_entry(FIRMWARE_FLASH_NAME, S_IRUSR | S_IWUSR, proc_ppc64.rtas)) != NULL) { ent->nlink = 1; ent->proc_fops = &rtas_flash_operations; ent->owner = THIS_MODULE; @@ -228,9 +228,9 @@ int __init rtas_flash_init(void) void __exit rtas_flash_cleanup(void) { - if (!rtas_proc_dir) + if (!proc_ppc64.rtas) return; - remove_proc_entry(FIRMWARE_FLASH_NAME, rtas_proc_dir); + remove_proc_entry(FIRMWARE_FLASH_NAME, proc_ppc64.rtas); } module_init(rtas_flash_init); diff --git a/arch/ppc64/kernel/setup.c b/arch/ppc64/kernel/setup.c index 2472fcc916e4..30e1b8719038 100644 --- a/arch/ppc64/kernel/setup.c +++ b/arch/ppc64/kernel/setup.c @@ -156,10 +156,10 @@ void setup_system(unsigned long r3, unsigned long r4, unsigned long r5, #ifdef CONFIG_PPC_ISERIES /* pSeries systems are identified in prom.c via OF. */ if ( itLpNaca.xLparInstalled == 1 ) - naca->platform = PLATFORM_ISERIES_LPAR; + systemcfg->platform = PLATFORM_ISERIES_LPAR; #endif - switch (naca->platform) { + switch (systemcfg->platform) { #ifdef CONFIG_PPC_ISERIES case PLATFORM_ISERIES_LPAR: iSeries_init_early(); @@ -185,7 +185,7 @@ void setup_system(unsigned long r3, unsigned long r4, unsigned long r5, #endif } - if (naca->platform & PLATFORM_PSERIES) { + if (systemcfg->platform & PLATFORM_PSERIES) { early_console_initialized = 1; register_console(&udbg_console); } @@ -193,32 +193,27 @@ void setup_system(unsigned long r3, unsigned long r4, unsigned long r5, printk("Starting Linux PPC64 %s\n", UTS_RELEASE); printk("-----------------------------------------------------\n"); - printk("naca = 0x%p\n", naca); -#if 0 - printk("naca->processorCount = 0x%x\n", naca->processorCount); -#endif - printk("naca->physicalMemorySize = 0x%lx\n", naca->physicalMemorySize); - printk("naca->dCacheL1LineSize = 0x%x\n", naca->dCacheL1LineSize); - printk("naca->dCacheL1LogLineSize = 0x%x\n", naca->dCacheL1LogLineSize); - printk("naca->dCacheL1LinesPerPage = 0x%x\n", naca->dCacheL1LinesPerPage); - printk("naca->iCacheL1LineSize = 0x%x\n", naca->iCacheL1LineSize); - printk("naca->iCacheL1LogLineSize = 0x%x\n", naca->iCacheL1LogLineSize); - printk("naca->iCacheL1LinesPerPage = 0x%x\n", naca->iCacheL1LinesPerPage); - printk("naca->pftSize = 0x%lx\n", naca->pftSize); - printk("naca->debug_switch = 0x%lx\n", naca->debug_switch); - printk("naca->interrupt_controller = 0x%d\n", naca->interrupt_controller); - printk("htab_data.htab = 0x%p\n", htab_data.htab); - printk("htab_data.num_ptegs = 0x%lx\n", htab_data.htab_num_ptegs); + printk("naca = 0x%p\n", naca); + printk("naca->pftSize = 0x%lx\n", naca->pftSize); + printk("naca->debug_switch = 0x%lx\n", naca->debug_switch); + printk("naca->interrupt_controller = 0x%d\n", naca->interrupt_controller); + printk("systemcf = 0x%p\n", systemcfg); + printk("systemcfg->processorCount = 0x%x\n", systemcfg->processorCount); + printk("systemcfg->physicalMemorySize = 0x%lx\n", systemcfg->physicalMemorySize); + printk("systemcfg->dCacheL1LineSize = 0x%x\n", systemcfg->dCacheL1LineSize); + printk("systemcfg->iCacheL1LineSize = 0x%x\n", systemcfg->iCacheL1LineSize); + printk("htab_data.htab = 0x%p\n", htab_data.htab); + printk("htab_data.num_ptegs = 0x%lx\n", htab_data.htab_num_ptegs); printk("-----------------------------------------------------\n"); - if (naca->platform & PLATFORM_PSERIES) { + if (systemcfg->platform & PLATFORM_PSERIES) { finish_device_tree(); chrp_init(r3, r4, r5, r6, r7); } mm_init_ppc64(); - switch (naca->platform) { + switch (systemcfg->platform) { #ifdef CONFIG_PPC_ISERIES case PLATFORM_ISERIES_LPAR: iSeries_init(); @@ -312,7 +307,7 @@ static int show_cpuinfo(struct seq_file *m, void *v) * Assume here that all clock rates are the same in a * smp system. -- Cort */ - if (naca->platform != PLATFORM_ISERIES_LPAR) { + if (systemcfg->platform != PLATFORM_ISERIES_LPAR) { struct device_node *cpu_node; int *fp; @@ -516,8 +511,8 @@ void __init setup_arch(char **cmdline_p) * Systems with OF can look in the properties on the cpu node(s) * for a possibly more accurate value. */ - dcache_bsize = naca->dCacheL1LineSize; - icache_bsize = naca->iCacheL1LineSize; + dcache_bsize = systemcfg->dCacheL1LineSize; + icache_bsize = systemcfg->iCacheL1LineSize; /* reboot on panic */ panic_timeout = 180; diff --git a/arch/ppc64/kernel/smp.c b/arch/ppc64/kernel/smp.c index 44bd8bb70914..bf370e5ff2b7 100644 --- a/arch/ppc64/kernel/smp.c +++ b/arch/ppc64/kernel/smp.c @@ -190,7 +190,7 @@ void __init smp_init_iSeries(void) smp_ops->kick_cpu = smp_iSeries_kick_cpu; smp_ops->setup_cpu = smp_iSeries_setup_cpu; #warning fix for iseries - naca->processorCount = smp_iSeries_numProcs(); + systemcfg->processorCount = smp_iSeries_numProcs(); } #endif @@ -354,7 +354,7 @@ void __init smp_init_pSeries(void) smp_ops->probe = smp_xics_probe; } - if (naca->platform == PLATFORM_PSERIES) { + if (systemcfg->platform == PLATFORM_PSERIES) { smp_ops->give_timebase = pSeries_give_timebase; smp_ops->take_timebase = pSeries_take_timebase; } diff --git a/arch/ppc64/kernel/udbg.c b/arch/ppc64/kernel/udbg.c index 9e3bafec6051..aa456dd47936 100644 --- a/arch/ppc64/kernel/udbg.c +++ b/arch/ppc64/kernel/udbg.c @@ -176,7 +176,7 @@ udbg_puthex(unsigned long val) void udbg_printSP(const char *s) { - if (naca->platform == PLATFORM_PSERIES) { + if (systemcfg->platform == PLATFORM_PSERIES) { unsigned long sp; asm("mr %0,1" : "=r" (sp) :); if (s) diff --git a/arch/ppc64/kernel/xics.c b/arch/ppc64/kernel/xics.c index 4579906ef21a..cb1a4595279b 100644 --- a/arch/ppc64/kernel/xics.c +++ b/arch/ppc64/kernel/xics.c @@ -386,7 +386,7 @@ nextnode: xics_irq_8259_cascade = virt_irq_create_mapping(xics_irq_8259_cascade_real); } - if (naca->platform == PLATFORM_PSERIES) { + if (systemcfg->platform == PLATFORM_PSERIES) { #ifdef CONFIG_SMP for (i = 0; i < NR_CPUS; ++i) { if (!cpu_possible(i)) @@ -402,7 +402,7 @@ nextnode: /* actually iSeries does not use any of xics...but it has link dependencies * for now, except this new one... */ - } else if (naca->platform == PLATFORM_PSERIES_LPAR) { + } else if (systemcfg->platform == PLATFORM_PSERIES_LPAR) { ops = &pSeriesLP_ops; #endif } diff --git a/arch/ppc64/xmon/xmon.c b/arch/ppc64/xmon/xmon.c index 1ec80f0ffc58..78f7f86ebc36 100644 --- a/arch/ppc64/xmon/xmon.c +++ b/arch/ppc64/xmon/xmon.c @@ -453,7 +453,7 @@ insert_bpts() int i; struct bpt *bp; - if (naca->platform != PLATFORM_PSERIES) + if (systemcfg->platform != PLATFORM_PSERIES) return; bp = bpts; for (i = 0; i < NBPTS; ++i, ++bp) { @@ -484,7 +484,7 @@ remove_bpts() struct bpt *bp; unsigned instr; - if (naca->platform != PLATFORM_PSERIES) + if (systemcfg->platform != PLATFORM_PSERIES) return; if (!__is_processor(PV_POWER4) && !__is_processor(PV_POWER4p)) { set_dabr(0); diff --git a/include/asm-ppc64/machdep.h b/include/asm-ppc64/machdep.h index 15c6a59e43e6..f0df83756768 100644 --- a/include/asm-ppc64/machdep.h +++ b/include/asm-ppc64/machdep.h @@ -90,6 +90,8 @@ struct machdep_calls { unsigned char (*udbg_getc)(void); int (*udbg_getc_poll)(void); + /* this is for modules, since _machine can be a define -- Cort */ + int ppc_machine; #ifdef CONFIG_SMP /* functions for dealing with other cpus */ struct smp_ops_t smp_ops; diff --git a/include/asm-ppc64/mmu.h b/include/asm-ppc64/mmu.h index 9f81ab9ac9f6..b01c3cddbcf4 100644 --- a/include/asm-ppc64/mmu.h +++ b/include/asm-ppc64/mmu.h @@ -221,6 +221,13 @@ static inline void _tlbiel(unsigned long va) #endif /* __ASSEMBLY__ */ +/* + * Location of cpu0's segment table + */ +#define STAB0_PAGE 0x9 +#define STAB0_PHYS_ADDR (STAB0_PAGE< +#include + +#ifndef __ASSEMBLY__ struct naca_struct { - void *xItVpdAreas; - void *xRamDisk; - u64 xRamDiskSize; /* In pages */ - struct paca_struct *paca; /* Ptr to an array of pacas */ - u64 debug_switch; /* Bits to control debug printing */ - u16 dCacheL1LineSize; /* Line size of L1 DCache in bytes */ - u16 dCacheL1LogLineSize; /* Log-2 of DCache line size */ - u16 dCacheL1LinesPerPage; /* DCache lines per page */ - u16 iCacheL1LineSize; /* Line size of L1 ICache in bytes */ - u16 iCacheL1LogLineSize; /* Log-2 of ICache line size */ - u16 iCacheL1LinesPerPage; /* ICache lines per page */ - u16 slb_size; /* SLB size in entries */ - u64 physicalMemorySize; /* Size of real memory in bytes */ - u64 pftSize; /* Log base 2 of page table size */ - u64 serialPortAddr; /* Phyical address of serial port */ - u8 interrupt_controller; /* Type of interrupt controller */ - u8 resv0; /* Type of interrupt controller */ - u16 platform; /* Platform flags */ - u8 resv1[12]; /* Padding */ + /*================================================================== + * Cache line 1: 0x0000 - 0x007F + * Kernel only data - undefined for user space + *================================================================== + */ + void *xItVpdAreas; /* VPD Data 0x00 */ + void *xRamDisk; /* iSeries ramdisk 0x08 */ + u64 xRamDiskSize; /* In pages 0x10 */ + struct paca_struct *paca; /* Ptr to an array of pacas 0x18 */ + u64 debug_switch; /* Debug print control 0x20 */ + u64 banner; /* Ptr to banner string 0x28 */ + u64 log; /* Ptr to log buffer 0x30 */ + u64 serialPortAddr; /* Phy addr of serial port 0x38 */ + u64 interrupt_controller; /* Type of int controller 0x40 */ + u64 slb_size; /* SLB size in entries 0x48 */ + u64 pftSize; /* Log 2 of page table size 0x50 */ + void *systemcfg; /* Pointer to systemcfg data 0x58 */ + u32 dCacheL1LogLineSize; /* L1 d-cache line size Log2 0x60 */ + u32 dCacheL1LinesPerPage; /* L1 d-cache lines / page 0x64 */ + u32 iCacheL1LogLineSize; /* L1 i-cache line size Log2 0x68 */ + u32 iCacheL1LinesPerPage; /* L1 i-cache lines / page 0x6c */ + u64 resv0[2]; /* Reserved 0x70 - 0x7F */ }; extern struct naca_struct *naca; +#endif /* __ASSEMBLY__ */ + +#define NACA_PAGE 0x4 +#define NACA_PHYS_ADDR (NACA_PAGE<> SID_SHIFT) & SID_MASK) +/* align addr on a size boundary - adjust address up/down if needed */ +#define _ALIGN_UP(addr,size) (((addr)+((size)-1))&(~((size)-1))) +#define _ALIGN_DOWN(addr,size) ((addr)&(~((size)-1))) + +/* align addr on a size boundary - adjust address up if needed */ +#define _ALIGN(addr,size) _ALIGN_UP(addr,size) + +/* to align the pointer to the (next) double word boundary */ +#define DOUBLEWORD_ALIGN(addr) _ALIGN(addr,sizeof(unsigned long)) + +/* to align the pointer to the (next) page boundary */ +#define PAGE_ALIGN(addr) _ALIGN(addr, PAGE_SIZE) + #ifdef __KERNEL__ #ifndef __ASSEMBLY__ #include @@ -37,7 +54,7 @@ static __inline__ void clear_page(void *addr) { unsigned long lines, line_size; - line_size = naca->dCacheL1LineSize; + line_size = systemcfg->dCacheL1LineSize; lines = naca->dCacheL1LinesPerPage; __asm__ __volatile__( @@ -114,19 +131,6 @@ static inline int get_order(unsigned long size) #endif /* __ASSEMBLY__ */ -/* align addr on a size boundary - adjust address up/down if needed */ -#define _ALIGN_UP(addr,size) (((addr)+((size)-1))&(~((size)-1))) -#define _ALIGN_DOWN(addr,size) ((addr)&(~((size)-1))) - -/* align addr on a size boundary - adjust address up if needed */ -#define _ALIGN(addr,size) _ALIGN_UP(addr,size) - -/* to align the pointer to the (next) double word boundary */ -#define DOUBLEWORD_ALIGN(addr) _ALIGN(addr,sizeof(unsigned long)) - -/* to align the pointer to the (next) page boundary */ -#define PAGE_ALIGN(addr) _ALIGN(addr, PAGE_SIZE) - #ifdef MODULE #define __page_aligned __attribute__((__aligned__(PAGE_SIZE))) #else diff --git a/include/asm-ppc64/proc_fs.h b/include/asm-ppc64/proc_fs.h index fe8317a6958d..aff9577da53a 100644 --- a/include/asm-ppc64/proc_fs.h +++ b/include/asm-ppc64/proc_fs.h @@ -25,9 +25,14 @@ #include -void pmc_proc_init(struct proc_dir_entry *iSeries_proc); -void proc_ppc64_init(void); +struct proc_ppc64_t { + struct proc_dir_entry *root; + struct proc_dir_entry *naca; + struct proc_dir_entry *paca; + struct proc_dir_entry *systemcfg; + struct proc_dir_entry *rtas; +}; -#include +extern struct proc_ppc64_t proc_ppc64; -#endif +#endif /* _PPC64_PROC_FS_H */ diff --git a/include/asm-ppc64/rtas.h b/include/asm-ppc64/rtas.h index 205e3856e456..e53a33c289e2 100644 --- a/include/asm-ppc64/rtas.h +++ b/include/asm-ppc64/rtas.h @@ -166,8 +166,6 @@ extern void rtas_restart(char *cmd); extern void rtas_power_off(void); extern void rtas_halt(void); -extern struct proc_dir_entry *rtas_proc_dir; - /* Some RTAS ops require a data buffer and that buffer must be < 4G. * Rather than having a memory allocator, just use this buffer * (get the lock first), make the RTAS call. Copy the data instead diff --git a/include/asm-ppc64/systemcfg.h b/include/asm-ppc64/systemcfg.h new file mode 100644 index 000000000000..b78c5a2828ca --- /dev/null +++ b/include/asm-ppc64/systemcfg.h @@ -0,0 +1,109 @@ +#ifndef _SYSTEMCFG_H +#define _SYSTEMCFG_H + +/* + * Copyright (C) 2002 Peter Bergner , IBM + * + * 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. + */ + +/* Change Activity: + * 2002/09/30 : bergner : Created + * End Change Activity + */ + + +#ifndef __KERNEL__ +#include +#include +#include +#include +#endif + +/* + * If the major version changes we are incompatible. + * Minor version changes are a hint. + */ +#define SYSTEMCFG_MAJOR 1 +#define SYSTEMCFG_MINOR 0 + +#ifndef __ASSEMBLY__ + +struct systemcfg { + __u8 eye_catcher[16]; /* Eyecatcher: SYSTEMCFG:PPC64 0x00 */ + struct { /* Systemcfg version numbers */ + __u32 major; /* Major number 0x10 */ + __u32 minor; /* Minor number 0x14 */ + } version; + + __u32 platform; /* Platform flags 0x18 */ + __u32 processor; /* Processor type 0x1C */ + __u64 processorCount; /* # of physical processors 0x20 */ + __u64 physicalMemorySize; /* Size of real memory(B) 0x28 */ + __u64 tb_orig_stamp; /* Timebase at boot 0x30 */ + __u64 tb_ticks_per_sec; /* Timebase tics / sec 0x38 */ + __u64 tb_to_xs; /* Inverse of TB to 2^20 0x40 */ + __u64 stamp_xsec; /* 0x48 */ + __u64 tb_update_count; /* Timebase atomicity ctr 0x50 */ + __u32 tz_minuteswest; /* Minutes west of Greenwich 0x58 */ + __u32 tz_dsttime; /* Type of dst correction 0x5C */ + __u32 dCacheL1Size; /* L1 d-cache size 0x60 */ + __u32 dCacheL1LineSize; /* L1 d-cache line size 0x64 */ + __u32 iCacheL1Size; /* L1 i-cache size 0x68 */ + __u32 iCacheL1LineSize; /* L1 i-cache line size 0x6C */ + __u8 reserved0[3984]; /* Reserve rest of page 0x70 */ +}; + +#ifdef __KERNEL__ +extern struct systemcfg *systemcfg; +#else + +/* Processor Version Register (PVR) field extraction */ +#define PVR_VER(pvr) (((pvr) >> 16) & 0xFFFF) /* Version field */ +#define PVR_REV(pvr) (((pvr) >> 0) & 0xFFFF) /* Revison field */ + +/* Processor Version Numbers */ +#define PV_NORTHSTAR 0x0033 +#define PV_PULSAR 0x0034 +#define PV_POWER4 0x0035 +#define PV_ICESTAR 0x0036 +#define PV_SSTAR 0x0037 +#define PV_POWER4p 0x0038 +#define PV_630 0x0040 +#define PV_630p 0x0041 + +/* Platforms supported by PPC64 */ +#define PLATFORM_PSERIES 0x0100 +#define PLATFORM_PSERIES_LPAR 0x0101 +#define PLATFORM_ISERIES_LPAR 0x0201 + + +static inline volatile struct systemcfg *systemcfg_init(void) +{ + int fd = open("/proc/ppc64/systemcfg", O_RDONLY); + volatile struct systemcfg *ret; + + if (fd == -1) + return 0; + ret = mmap(0, sizeof(struct systemcfg), PROT_READ, MAP_SHARED, fd, 0); + close(fd); + if (!ret) + return 0; + if (ret->version.major != SYSTEMCFG_MAJOR || ret->version.minor < SYSTEMCFG_MINOR) { + munmap((void *)ret, sizeof(struct systemcfg)); + return 0; + } + return ret; +} +#endif /* __KERNEL__ */ + +#endif /* __ASSEMBLY__ */ + +#define SYSTEMCFG_PAGE 0x5 +#define SYSTEMCFG_PHYS_ADDR (SYSTEMCFG_PAGE<