x86: unify asm nops
There's only one difference between the NOPs used in asm code for i386 and x86_64: i386 has a lot more variants. The code is moved to processor.h, and adjusted accordingly. 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>
This commit is contained in:
Glauber de Oliveira Costa
Ingo Molnar
Родитель
ae2e15eb3b
Коммит
ea5e3593a4
|
|
@ -592,6 +592,91 @@ extern int bootloader_type;
|
|||
extern char ignore_fpu_irq;
|
||||
#define cache_line_size() (boot_cpu_data.x86_cache_alignment)
|
||||
|
||||
/* 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_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) || \
|
||||
defined(CONFIG_MPSC)
|
||||
#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
|
||||
#elif defined(CONFIG_MK8) || defined(CONFIG_X86_64)
|
||||
#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
|
||||
#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
|
||||
|
||||
#define HAVE_ARCH_PICK_MMAP_LAYOUT 1
|
||||
#define ARCH_HAS_PREFETCHW
|
||||
#define ARCH_HAS_SPINLOCK_PREFETCH
|
||||
|
|
|
|||
|
|
@ -18,7 +18,6 @@
|
|||
#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];
|
||||
|
|
@ -144,88 +143,4 @@ extern unsigned long thread_saved_pc(struct task_struct *tsk);
|
|||
|
||||
#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 */
|
||||
|
|
|
|||
|
|
@ -80,48 +80,4 @@ DECLARE_PER_CPU(struct orig_ist, orig_ist);
|
|||
#define task_pt_regs(tsk) ((struct pt_regs *)(tsk)->thread.sp0 - 1)
|
||||
#define KSTK_ESP(tsk) -1 /* sorry. doesn't work for syscall. */
|
||||
|
||||
|
||||
#if defined(CONFIG_MPSC) || defined(CONFIG_MCORE2)
|
||||
#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 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
|
||||
#endif
|
||||
|
||||
/* Opteron nops */
|
||||
#define K8_NOP1 ".byte 0x90\n"
|
||||
#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
|
||||
|
||||
/* P6 nops */
|
||||
/* uses eax dependencies (Intel-recommended choice) */
|
||||
#define P6_NOP1 ".byte 0x90\n"
|
||||
#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"
|
||||
|
||||
#define ASM_NOP_MAX 8
|
||||
|
||||
#endif /* __ASM_X86_64_PROCESSOR_H */
|
||||
|
|
|
|||
Загрузка…
Ссылка в новой задаче