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Diffstat (limited to 'include/asm-powerpc/processor.h')
| -rw-r--r-- | include/asm-powerpc/processor.h | 314 |
1 files changed, 0 insertions, 314 deletions
diff --git a/include/asm-powerpc/processor.h b/include/asm-powerpc/processor.h deleted file mode 100644 index 101ed87..0000000 --- a/include/asm-powerpc/processor.h +++ /dev/null @@ -1,314 +0,0 @@ -#ifndef _ASM_POWERPC_PROCESSOR_H -#define _ASM_POWERPC_PROCESSOR_H - -/* - * Copyright (C) 2001 PPC 64 Team, IBM Corp - * - * 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 <asm/reg.h> - -#ifdef CONFIG_VSX -#define TS_FPRWIDTH 2 -#else -#define TS_FPRWIDTH 1 -#endif - -#ifndef __ASSEMBLY__ -#include <linux/compiler.h> -#include <asm/ptrace.h> -#include <asm/types.h> - -/* We do _not_ want to define new machine types at all, those must die - * in favor of using the device-tree - * -- BenH. - */ - -/* PREP sub-platform types see residual.h for these */ -#define _PREP_Motorola 0x01 /* motorola prep */ -#define _PREP_Firm 0x02 /* firmworks prep */ -#define _PREP_IBM 0x00 /* ibm prep */ -#define _PREP_Bull 0x03 /* bull prep */ - -/* CHRP sub-platform types. These are arbitrary */ -#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) - -extern int _chrp_type; - -#ifdef CONFIG_PPC_PREP - -/* what kind of prep workstation we are */ -extern int _prep_type; - -#endif /* CONFIG_PPC_PREP */ - -#endif /* defined(__KERNEL__) && defined(CONFIG_PPC32) */ - -/* - * Default implementation of macro that returns current - * instruction pointer ("program counter"). - */ -#define current_text_addr() ({ __label__ _l; _l: &&_l;}) - -/* Macros for adjusting thread priority (hardware multi-threading) */ -#define HMT_very_low() asm volatile("or 31,31,31 # very low priority") -#define HMT_low() asm volatile("or 1,1,1 # low priority") -#define HMT_medium_low() asm volatile("or 6,6,6 # medium low priority") -#define HMT_medium() asm volatile("or 2,2,2 # medium priority") -#define HMT_medium_high() asm volatile("or 5,5,5 # medium high priority") -#define HMT_high() asm volatile("or 3,3,3 # high priority") - -#ifdef __KERNEL__ - -extern int have_of; - -struct task_struct; -void start_thread(struct pt_regs *regs, unsigned long fdptr, unsigned long sp); -void release_thread(struct task_struct *); - -/* Prepare to copy thread state - unlazy all lazy status */ -extern void prepare_to_copy(struct task_struct *tsk); - -/* Create a new kernel thread. */ -extern long kernel_thread(int (*fn)(void *), void *arg, unsigned long flags); - -/* Lazy FPU handling on uni-processor */ -extern struct task_struct *last_task_used_math; -extern struct task_struct *last_task_used_altivec; -extern struct task_struct *last_task_used_vsx; -extern struct task_struct *last_task_used_spe; - -#ifdef CONFIG_PPC32 - -#if CONFIG_TASK_SIZE > CONFIG_KERNEL_START -#error User TASK_SIZE overlaps with KERNEL_START address -#endif -#define TASK_SIZE (CONFIG_TASK_SIZE) - -/* This decides where the kernel will search for a free chunk of vm - * space during mmap's. - */ -#define TASK_UNMAPPED_BASE (TASK_SIZE / 8 * 3) -#endif - -#ifdef CONFIG_PPC64 -/* 64-bit user address space is 44-bits (16TB user VM) */ -#define TASK_SIZE_USER64 (0x0000100000000000UL) - -/* - * 32-bit user address space is 4GB - 1 page - * (this 1 page is needed so referencing of 0xFFFFFFFF generates EFAULT - */ -#define TASK_SIZE_USER32 (0x0000000100000000UL - (1*PAGE_SIZE)) - -#define TASK_SIZE_OF(tsk) (test_tsk_thread_flag(tsk, TIF_32BIT) ? \ - TASK_SIZE_USER32 : TASK_SIZE_USER64) -#define TASK_SIZE TASK_SIZE_OF(current) - -/* This decides where the kernel will search for a free chunk of vm - * space during mmap's. - */ -#define TASK_UNMAPPED_BASE_USER32 (PAGE_ALIGN(TASK_SIZE_USER32 / 4)) -#define TASK_UNMAPPED_BASE_USER64 (PAGE_ALIGN(TASK_SIZE_USER64 / 4)) - -#define TASK_UNMAPPED_BASE ((test_thread_flag(TIF_32BIT)) ? \ - TASK_UNMAPPED_BASE_USER32 : TASK_UNMAPPED_BASE_USER64 ) -#endif - -#ifdef __KERNEL__ -#ifdef __powerpc64__ - -#define STACK_TOP_USER64 TASK_SIZE_USER64 -#define STACK_TOP_USER32 TASK_SIZE_USER32 - -#define STACK_TOP (test_thread_flag(TIF_32BIT) ? \ - STACK_TOP_USER32 : STACK_TOP_USER64) - -#define STACK_TOP_MAX STACK_TOP_USER64 - -#else /* __powerpc64__ */ - -#define STACK_TOP TASK_SIZE -#define STACK_TOP_MAX STACK_TOP - -#endif /* __powerpc64__ */ -#endif /* __KERNEL__ */ - -typedef struct { - unsigned long seg; -} mm_segment_t; - -#define TS_FPROFFSET 0 -#define TS_VSRLOWOFFSET 1 -#define TS_FPR(i) fpr[i][TS_FPROFFSET] - -struct thread_struct { - unsigned long ksp; /* Kernel stack pointer */ - unsigned long ksp_limit; /* if ksp <= ksp_limit stack overflow */ - -#ifdef CONFIG_PPC64 - unsigned long ksp_vsid; -#endif - struct pt_regs *regs; /* Pointer to saved register state */ - mm_segment_t fs; /* for get_fs() validation */ -#ifdef CONFIG_PPC32 - void *pgdir; /* root of page-table tree */ -#endif -#if defined(CONFIG_4xx) || defined (CONFIG_BOOKE) - unsigned long dbcr0; /* debug control register values */ - unsigned long dbcr1; -#endif - /* FP and VSX 0-31 register set */ - double fpr[32][TS_FPRWIDTH]; - struct { - - unsigned int pad; - unsigned int val; /* Floating point status */ - } fpscr; - int fpexc_mode; /* floating-point exception mode */ - unsigned int align_ctl; /* alignment handling control */ -#ifdef CONFIG_PPC64 - unsigned long start_tb; /* Start purr when proc switched in */ - unsigned long accum_tb; /* Total accumilated purr for process */ -#endif - unsigned long dabr; /* Data address breakpoint register */ -#ifdef CONFIG_ALTIVEC - /* Complete AltiVec register set */ - vector128 vr[32] __attribute__((aligned(16))); - /* AltiVec status */ - vector128 vscr __attribute__((aligned(16))); - unsigned long vrsave; - int used_vr; /* set if process has used altivec */ -#endif /* CONFIG_ALTIVEC */ -#ifdef CONFIG_VSX - /* VSR status */ - int used_vsr; /* set if process has used altivec */ -#endif /* CONFIG_VSX */ -#ifdef CONFIG_SPE - unsigned long evr[32]; /* upper 32-bits of SPE regs */ - u64 acc; /* Accumulator */ - unsigned long spefscr; /* SPE & eFP status */ - int used_spe; /* set if process has used spe */ -#endif /* CONFIG_SPE */ -}; - -#define ARCH_MIN_TASKALIGN 16 - -#define INIT_SP (sizeof(init_stack) + (unsigned long) &init_stack) -#define INIT_SP_LIMIT \ - (_ALIGN_UP(sizeof(init_thread_info), 16) + (unsigned long) &init_stack) - - -#ifdef CONFIG_PPC32 -#define INIT_THREAD { \ - .ksp = INIT_SP, \ - .ksp_limit = INIT_SP_LIMIT, \ - .fs = KERNEL_DS, \ - .pgdir = swapper_pg_dir, \ - .fpexc_mode = MSR_FE0 | MSR_FE1, \ -} -#else -#define INIT_THREAD { \ - .ksp = INIT_SP, \ - .ksp_limit = INIT_SP_LIMIT, \ - .regs = (struct pt_regs *)INIT_SP - 1, /* XXX bogus, I think */ \ - .fs = KERNEL_DS, \ - .fpr = {{0}}, \ - .fpscr = { .val = 0, }, \ - .fpexc_mode = 0, \ -} -#endif - -/* - * Return saved PC of a blocked thread. For now, this is the "user" PC - */ -#define thread_saved_pc(tsk) \ - ((tsk)->thread.regs? (tsk)->thread.regs->nip: 0) - -#define task_pt_regs(tsk) ((struct pt_regs *)(tsk)->thread.regs) - -unsigned long get_wchan(struct task_struct *p); - -#define KSTK_EIP(tsk) ((tsk)->thread.regs? (tsk)->thread.regs->nip: 0) -#define KSTK_ESP(tsk) ((tsk)->thread.regs? (tsk)->thread.regs->gpr[1]: 0) - -/* Get/set floating-point exception mode */ -#define GET_FPEXC_CTL(tsk, adr) get_fpexc_mode((tsk), (adr)) -#define SET_FPEXC_CTL(tsk, val) set_fpexc_mode((tsk), (val)) - -extern int get_fpexc_mode(struct task_struct *tsk, unsigned long adr); -extern int set_fpexc_mode(struct task_struct *tsk, unsigned int val); - -#define GET_ENDIAN(tsk, adr) get_endian((tsk), (adr)) -#define SET_ENDIAN(tsk, val) set_endian((tsk), (val)) - -extern int get_endian(struct task_struct *tsk, unsigned long adr); -extern int set_endian(struct task_struct *tsk, unsigned int val); - -#define GET_UNALIGN_CTL(tsk, adr) get_unalign_ctl((tsk), (adr)) -#define SET_UNALIGN_CTL(tsk, val) set_unalign_ctl((tsk), (val)) - -extern int get_unalign_ctl(struct task_struct *tsk, unsigned long adr); -extern int set_unalign_ctl(struct task_struct *tsk, unsigned int val); - -static inline unsigned int __unpack_fe01(unsigned long msr_bits) -{ - return ((msr_bits & MSR_FE0) >> 10) | ((msr_bits & MSR_FE1) >> 8); -} - -static inline unsigned long __pack_fe01(unsigned int fpmode) -{ - return ((fpmode << 10) & MSR_FE0) | ((fpmode << 8) & MSR_FE1); -} - -#ifdef CONFIG_PPC64 -#define cpu_relax() do { HMT_low(); HMT_medium(); barrier(); } while (0) -#else -#define cpu_relax() barrier() -#endif - -/* Check that a certain kernel stack pointer is valid in task_struct p */ -int validate_sp(unsigned long sp, struct task_struct *p, - unsigned long nbytes); - -/* - * Prefetch macros. - */ -#define ARCH_HAS_PREFETCH -#define ARCH_HAS_PREFETCHW -#define ARCH_HAS_SPINLOCK_PREFETCH - -static inline void prefetch(const void *x) -{ - if (unlikely(!x)) - return; - - __asm__ __volatile__ ("dcbt 0,%0" : : "r" (x)); -} - -static inline void prefetchw(const void *x) -{ - if (unlikely(!x)) - return; - - __asm__ __volatile__ ("dcbtst 0,%0" : : "r" (x)); -} - -#define spin_lock_prefetch(x) prefetchw(x) - -#ifdef CONFIG_PPC64 -#define HAVE_ARCH_PICK_MMAP_LAYOUT -#endif - -#endif /* __KERNEL__ */ -#endif /* __ASSEMBLY__ */ -#endif /* _ASM_POWERPC_PROCESSOR_H */ |