mirror of
https://github.com/genesi/linux-legacy.git
synced 2026-09-25 08:04:07 +00:00
ae2e15eb3b
This patch moves the prefetch[w]? functions to processor.h Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
232 lines
6.5 KiB
C
232 lines
6.5 KiB
C
/*
|
|
* Copyright (C) 1994 Linus Torvalds
|
|
*/
|
|
|
|
#ifndef __ASM_I386_PROCESSOR_H
|
|
#define __ASM_I386_PROCESSOR_H
|
|
|
|
#include <asm/vm86.h>
|
|
#include <asm/math_emu.h>
|
|
#include <asm/segment.h>
|
|
#include <asm/page.h>
|
|
#include <asm/types.h>
|
|
#include <asm/sigcontext.h>
|
|
#include <asm/cpufeature.h>
|
|
#include <asm/msr.h>
|
|
#include <asm/system.h>
|
|
#include <linux/threads.h>
|
|
#include <linux/init.h>
|
|
#include <asm/desc_defs.h>
|
|
|
|
|
|
/*
|
|
* the following now lives in the per cpu area:
|
|
* extern int cpu_llc_id[NR_CPUS];
|
|
*/
|
|
DECLARE_PER_CPU(u8, cpu_llc_id);
|
|
|
|
/*
|
|
* User space process size: 3GB (default).
|
|
*/
|
|
#define TASK_SIZE (PAGE_OFFSET)
|
|
|
|
|
|
struct i387_fsave_struct {
|
|
long cwd;
|
|
long swd;
|
|
long twd;
|
|
long fip;
|
|
long fcs;
|
|
long foo;
|
|
long fos;
|
|
long st_space[20]; /* 8*10 bytes for each FP-reg = 80 bytes */
|
|
long status; /* software status information */
|
|
};
|
|
|
|
struct i387_fxsave_struct {
|
|
unsigned short cwd;
|
|
unsigned short swd;
|
|
unsigned short twd;
|
|
unsigned short fop;
|
|
long fip;
|
|
long fcs;
|
|
long foo;
|
|
long fos;
|
|
long mxcsr;
|
|
long mxcsr_mask;
|
|
long st_space[32]; /* 8*16 bytes for each FP-reg = 128 bytes */
|
|
long xmm_space[32]; /* 8*16 bytes for each XMM-reg = 128 bytes */
|
|
long padding[56];
|
|
} __attribute__ ((aligned (16)));
|
|
|
|
struct i387_soft_struct {
|
|
long cwd;
|
|
long swd;
|
|
long twd;
|
|
long fip;
|
|
long fcs;
|
|
long foo;
|
|
long fos;
|
|
long st_space[20]; /* 8*10 bytes for each FP-reg = 80 bytes */
|
|
unsigned char ftop, changed, lookahead, no_update, rm, alimit;
|
|
struct info *info;
|
|
unsigned long entry_eip;
|
|
};
|
|
|
|
union i387_union {
|
|
struct i387_fsave_struct fsave;
|
|
struct i387_fxsave_struct fxsave;
|
|
struct i387_soft_struct soft;
|
|
};
|
|
|
|
#define INIT_THREAD { \
|
|
.sp0 = sizeof(init_stack) + (long)&init_stack, \
|
|
.vm86_info = NULL, \
|
|
.sysenter_cs = __KERNEL_CS, \
|
|
.io_bitmap_ptr = NULL, \
|
|
.fs = __KERNEL_PERCPU, \
|
|
}
|
|
|
|
/*
|
|
* Note that the .io_bitmap member must be extra-big. This is because
|
|
* the CPU will access an additional byte beyond the end of the IO
|
|
* permission bitmap. The extra byte must be all 1 bits, and must
|
|
* be within the limit.
|
|
*/
|
|
#define INIT_TSS { \
|
|
.x86_tss = { \
|
|
.sp0 = sizeof(init_stack) + (long)&init_stack, \
|
|
.ss0 = __KERNEL_DS, \
|
|
.ss1 = __KERNEL_CS, \
|
|
.io_bitmap_base = INVALID_IO_BITMAP_OFFSET, \
|
|
}, \
|
|
.io_bitmap = { [ 0 ... IO_BITMAP_LONGS] = ~0 }, \
|
|
}
|
|
|
|
#define start_thread(regs, new_eip, new_esp) do { \
|
|
__asm__("movl %0,%%gs": :"r" (0)); \
|
|
regs->fs = 0; \
|
|
set_fs(USER_DS); \
|
|
regs->ds = __USER_DS; \
|
|
regs->es = __USER_DS; \
|
|
regs->ss = __USER_DS; \
|
|
regs->cs = __USER_CS; \
|
|
regs->ip = new_eip; \
|
|
regs->sp = new_esp; \
|
|
} while (0)
|
|
|
|
|
|
extern unsigned long thread_saved_pc(struct task_struct *tsk);
|
|
|
|
#define THREAD_SIZE_LONGS (THREAD_SIZE/sizeof(unsigned long))
|
|
#define KSTK_TOP(info) \
|
|
({ \
|
|
unsigned long *__ptr = (unsigned long *)(info); \
|
|
(unsigned long)(&__ptr[THREAD_SIZE_LONGS]); \
|
|
})
|
|
|
|
/*
|
|
* The below -8 is to reserve 8 bytes on top of the ring0 stack.
|
|
* This is necessary to guarantee that the entire "struct pt_regs"
|
|
* is accessable even if the CPU haven't stored the SS/ESP registers
|
|
* on the stack (interrupt gate does not save these registers
|
|
* when switching to the same priv ring).
|
|
* Therefore beware: accessing the ss/esp fields of the
|
|
* "struct pt_regs" is possible, but they may contain the
|
|
* completely wrong values.
|
|
*/
|
|
#define task_pt_regs(task) \
|
|
({ \
|
|
struct pt_regs *__regs__; \
|
|
__regs__ = (struct pt_regs *)(KSTK_TOP(task_stack_page(task))-8); \
|
|
__regs__ - 1; \
|
|
})
|
|
|
|
#define KSTK_ESP(task) (task_pt_regs(task)->sp)
|
|
|
|
/* generic versions from gas */
|
|
#define GENERIC_NOP1 ".byte 0x90\n"
|
|
#define GENERIC_NOP2 ".byte 0x89,0xf6\n"
|
|
#define GENERIC_NOP3 ".byte 0x8d,0x76,0x00\n"
|
|
#define GENERIC_NOP4 ".byte 0x8d,0x74,0x26,0x00\n"
|
|
#define GENERIC_NOP5 GENERIC_NOP1 GENERIC_NOP4
|
|
#define GENERIC_NOP6 ".byte 0x8d,0xb6,0x00,0x00,0x00,0x00\n"
|
|
#define GENERIC_NOP7 ".byte 0x8d,0xb4,0x26,0x00,0x00,0x00,0x00\n"
|
|
#define GENERIC_NOP8 GENERIC_NOP1 GENERIC_NOP7
|
|
|
|
/* Opteron nops */
|
|
#define K8_NOP1 GENERIC_NOP1
|
|
#define K8_NOP2 ".byte 0x66,0x90\n"
|
|
#define K8_NOP3 ".byte 0x66,0x66,0x90\n"
|
|
#define K8_NOP4 ".byte 0x66,0x66,0x66,0x90\n"
|
|
#define K8_NOP5 K8_NOP3 K8_NOP2
|
|
#define K8_NOP6 K8_NOP3 K8_NOP3
|
|
#define K8_NOP7 K8_NOP4 K8_NOP3
|
|
#define K8_NOP8 K8_NOP4 K8_NOP4
|
|
|
|
/* K7 nops */
|
|
/* uses eax dependencies (arbitary choice) */
|
|
#define K7_NOP1 GENERIC_NOP1
|
|
#define K7_NOP2 ".byte 0x8b,0xc0\n"
|
|
#define K7_NOP3 ".byte 0x8d,0x04,0x20\n"
|
|
#define K7_NOP4 ".byte 0x8d,0x44,0x20,0x00\n"
|
|
#define K7_NOP5 K7_NOP4 ASM_NOP1
|
|
#define K7_NOP6 ".byte 0x8d,0x80,0,0,0,0\n"
|
|
#define K7_NOP7 ".byte 0x8D,0x04,0x05,0,0,0,0\n"
|
|
#define K7_NOP8 K7_NOP7 ASM_NOP1
|
|
|
|
/* P6 nops */
|
|
/* uses eax dependencies (Intel-recommended choice) */
|
|
#define P6_NOP1 GENERIC_NOP1
|
|
#define P6_NOP2 ".byte 0x66,0x90\n"
|
|
#define P6_NOP3 ".byte 0x0f,0x1f,0x00\n"
|
|
#define P6_NOP4 ".byte 0x0f,0x1f,0x40,0\n"
|
|
#define P6_NOP5 ".byte 0x0f,0x1f,0x44,0x00,0\n"
|
|
#define P6_NOP6 ".byte 0x66,0x0f,0x1f,0x44,0x00,0\n"
|
|
#define P6_NOP7 ".byte 0x0f,0x1f,0x80,0,0,0,0\n"
|
|
#define P6_NOP8 ".byte 0x0f,0x1f,0x84,0x00,0,0,0,0\n"
|
|
|
|
#ifdef CONFIG_MK8
|
|
#define ASM_NOP1 K8_NOP1
|
|
#define ASM_NOP2 K8_NOP2
|
|
#define ASM_NOP3 K8_NOP3
|
|
#define ASM_NOP4 K8_NOP4
|
|
#define ASM_NOP5 K8_NOP5
|
|
#define ASM_NOP6 K8_NOP6
|
|
#define ASM_NOP7 K8_NOP7
|
|
#define ASM_NOP8 K8_NOP8
|
|
#elif defined(CONFIG_MK7)
|
|
#define ASM_NOP1 K7_NOP1
|
|
#define ASM_NOP2 K7_NOP2
|
|
#define ASM_NOP3 K7_NOP3
|
|
#define ASM_NOP4 K7_NOP4
|
|
#define ASM_NOP5 K7_NOP5
|
|
#define ASM_NOP6 K7_NOP6
|
|
#define ASM_NOP7 K7_NOP7
|
|
#define ASM_NOP8 K7_NOP8
|
|
#elif defined(CONFIG_M686) || defined(CONFIG_MPENTIUMII) || \
|
|
defined(CONFIG_MPENTIUMIII) || defined(CONFIG_MPENTIUMM) || \
|
|
defined(CONFIG_MCORE2) || defined(CONFIG_PENTIUM4)
|
|
#define ASM_NOP1 P6_NOP1
|
|
#define ASM_NOP2 P6_NOP2
|
|
#define ASM_NOP3 P6_NOP3
|
|
#define ASM_NOP4 P6_NOP4
|
|
#define ASM_NOP5 P6_NOP5
|
|
#define ASM_NOP6 P6_NOP6
|
|
#define ASM_NOP7 P6_NOP7
|
|
#define ASM_NOP8 P6_NOP8
|
|
#else
|
|
#define ASM_NOP1 GENERIC_NOP1
|
|
#define ASM_NOP2 GENERIC_NOP2
|
|
#define ASM_NOP3 GENERIC_NOP3
|
|
#define ASM_NOP4 GENERIC_NOP4
|
|
#define ASM_NOP5 GENERIC_NOP5
|
|
#define ASM_NOP6 GENERIC_NOP6
|
|
#define ASM_NOP7 GENERIC_NOP7
|
|
#define ASM_NOP8 GENERIC_NOP8
|
|
#endif
|
|
|
|
#define ASM_NOP_MAX 8
|
|
|
|
#endif /* __ASM_I386_PROCESSOR_H */
|