diff options
Diffstat (limited to 'tools/arch/x86/include/asm')
| -rw-r--r-- | tools/arch/x86/include/asm/barrier.h | 14 | ||||
| -rw-r--r-- | tools/arch/x86/include/asm/cpufeatures.h | 2 |
2 files changed, 16 insertions, 0 deletions
diff --git a/tools/arch/x86/include/asm/barrier.h b/tools/arch/x86/include/asm/barrier.h index 8774dee27471..58919868473c 100644 --- a/tools/arch/x86/include/asm/barrier.h +++ b/tools/arch/x86/include/asm/barrier.h @@ -26,4 +26,18 @@ #define wmb() asm volatile("sfence" ::: "memory") #endif +#if defined(__x86_64__) +#define smp_store_release(p, v) \ +do { \ + barrier(); \ + WRITE_ONCE(*p, v); \ +} while (0) + +#define smp_load_acquire(p) \ +({ \ + typeof(*p) ___p1 = READ_ONCE(*p); \ + barrier(); \ + ___p1; \ +}) +#endif /* defined(__x86_64__) */ #endif /* _TOOLS_LINUX_ASM_X86_BARRIER_H */ diff --git a/tools/arch/x86/include/asm/cpufeatures.h b/tools/arch/x86/include/asm/cpufeatures.h index 89a048c2faec..28c4a502b419 100644 --- a/tools/arch/x86/include/asm/cpufeatures.h +++ b/tools/arch/x86/include/asm/cpufeatures.h @@ -331,6 +331,8 @@ #define X86_FEATURE_LA57 (16*32+16) /* 5-level page tables */ #define X86_FEATURE_RDPID (16*32+22) /* RDPID instruction */ #define X86_FEATURE_CLDEMOTE (16*32+25) /* CLDEMOTE instruction */ +#define X86_FEATURE_MOVDIRI (16*32+27) /* MOVDIRI instruction */ +#define X86_FEATURE_MOVDIR64B (16*32+28) /* MOVDIR64B instruction */ /* AMD-defined CPU features, CPUID level 0x80000007 (EBX), word 17 */ #define X86_FEATURE_OVERFLOW_RECOV (17*32+ 0) /* MCA overflow recovery support */ |
