diff options
Diffstat (limited to 'include/asm-x86')
| -rw-r--r-- | include/asm-x86/processor_32.h | 22 | ||||
| -rw-r--r-- | include/asm-x86/processor_64.h | 22 |
2 files changed, 44 insertions, 0 deletions
diff --git a/include/asm-x86/processor_32.h b/include/asm-x86/processor_32.h index 38cc1061487e..83800e7496ee 100644 --- a/include/asm-x86/processor_32.h +++ b/include/asm-x86/processor_32.h @@ -677,6 +677,17 @@ static inline unsigned int cpuid_edx(unsigned int op) #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 @@ -695,6 +706,17 @@ static inline unsigned int cpuid_edx(unsigned int op) #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 diff --git a/include/asm-x86/processor_64.h b/include/asm-x86/processor_64.h index 2f12eb6e46b0..f422becbddd9 100644 --- a/include/asm-x86/processor_64.h +++ b/include/asm-x86/processor_64.h @@ -334,6 +334,16 @@ struct extended_sigtable { }; +#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 @@ -342,6 +352,7 @@ struct extended_sigtable { #define ASM_NOP6 K8_NOP6 #define ASM_NOP7 K8_NOP7 #define ASM_NOP8 K8_NOP8 +#endif /* Opteron nops */ #define K8_NOP1 ".byte 0x90\n" @@ -353,6 +364,17 @@ struct extended_sigtable { #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 /* REP NOP (PAUSE) is a good thing to insert into busy-wait loops. */ |