diff options
Diffstat (limited to 'include/asm-x86/msr.h')
| -rw-r--r-- | include/asm-x86/msr.h | 89 |
1 files changed, 50 insertions, 39 deletions
diff --git a/include/asm-x86/msr.h b/include/asm-x86/msr.h index 3ca29ebebbb1..3707650a169b 100644 --- a/include/asm-x86/msr.h +++ b/include/asm-x86/msr.h @@ -16,8 +16,8 @@ static inline unsigned long long native_read_tscp(unsigned int *aux) { unsigned long low, high; - asm volatile (".byte 0x0f,0x01,0xf9" - : "=a" (low), "=d" (high), "=c" (*aux)); + asm volatile(".byte 0x0f,0x01,0xf9" + : "=a" (low), "=d" (high), "=c" (*aux)); return low | ((u64)high >> 32); } @@ -29,7 +29,7 @@ static inline unsigned long long native_read_tscp(unsigned int *aux) */ #ifdef CONFIG_X86_64 #define DECLARE_ARGS(val, low, high) unsigned low, high -#define EAX_EDX_VAL(val, low, high) (low | ((u64)(high) << 32)) +#define EAX_EDX_VAL(val, low, high) ((low) | ((u64)(high) << 32)) #define EAX_EDX_ARGS(val, low, high) "a" (low), "d" (high) #define EAX_EDX_RET(val, low, high) "=a" (low), "=d" (high) #else @@ -57,7 +57,7 @@ static inline unsigned long long native_read_msr_safe(unsigned int msr, ".section .fixup,\"ax\"\n\t" "3: mov %3,%0 ; jmp 1b\n\t" ".previous\n\t" - _ASM_EXTABLE(2b,3b) + _ASM_EXTABLE(2b, 3b) : "=r" (*err), EAX_EDX_RET(val, low, high) : "c" (msr), "i" (-EFAULT)); return EAX_EDX_VAL(val, low, high); @@ -78,10 +78,10 @@ static inline int native_write_msr_safe(unsigned int msr, ".section .fixup,\"ax\"\n\t" "3: mov %4,%0 ; jmp 1b\n\t" ".previous\n\t" - _ASM_EXTABLE(2b,3b) + _ASM_EXTABLE(2b, 3b) : "=a" (err) : "c" (msr), "0" (low), "d" (high), - "i" (-EFAULT)); + "i" (-EFAULT)); return err; } @@ -116,23 +116,23 @@ static inline unsigned long long native_read_pmc(int counter) * pointer indirection), this allows gcc to optimize better */ -#define rdmsr(msr,val1,val2) \ - do { \ - u64 __val = native_read_msr(msr); \ - (val1) = (u32)__val; \ - (val2) = (u32)(__val >> 32); \ - } while(0) +#define rdmsr(msr, val1, val2) \ +do { \ + u64 __val = native_read_msr((msr)); \ + (val1) = (u32)__val; \ + (val2) = (u32)(__val >> 32); \ +} while (0) static inline void wrmsr(unsigned msr, unsigned low, unsigned high) { native_write_msr(msr, low, high); } -#define rdmsrl(msr,val) \ - ((val) = native_read_msr(msr)) +#define rdmsrl(msr, val) \ + ((val) = native_read_msr((msr))) #define wrmsrl(msr, val) \ - native_write_msr(msr, (u32)((u64)(val)), (u32)((u64)(val) >> 32)) + native_write_msr((msr), (u32)((u64)(val)), (u32)((u64)(val) >> 32)) /* wrmsr with exception handling */ static inline int wrmsr_safe(unsigned msr, unsigned low, unsigned high) @@ -141,14 +141,22 @@ static inline int wrmsr_safe(unsigned msr, unsigned low, unsigned high) } /* rdmsr with exception handling */ -#define rdmsr_safe(msr,p1,p2) \ - ({ \ - int __err; \ - u64 __val = native_read_msr_safe(msr, &__err); \ - (*p1) = (u32)__val; \ - (*p2) = (u32)(__val >> 32); \ - __err; \ - }) +#define rdmsr_safe(msr, p1, p2) \ +({ \ + int __err; \ + u64 __val = native_read_msr_safe((msr), &__err); \ + (*p1) = (u32)__val; \ + (*p2) = (u32)(__val >> 32); \ + __err; \ +}) + +static inline int rdmsrl_safe(unsigned msr, unsigned long long *p) +{ + int err; + + *p = native_read_msr_safe(msr, &err); + return err; +} #define rdtscl(low) \ ((low) = (u32)native_read_tsc()) @@ -156,35 +164,37 @@ static inline int wrmsr_safe(unsigned msr, unsigned low, unsigned high) #define rdtscll(val) \ ((val) = native_read_tsc()) -#define rdpmc(counter,low,high) \ - do { \ - u64 _l = native_read_pmc(counter); \ - (low) = (u32)_l; \ - (high) = (u32)(_l >> 32); \ - } while(0) +#define rdpmc(counter, low, high) \ +do { \ + u64 _l = native_read_pmc((counter)); \ + (low) = (u32)_l; \ + (high) = (u32)(_l >> 32); \ +} while (0) -#define rdtscp(low, high, aux) \ - do { \ - unsigned long long _val = native_read_tscp(&(aux)); \ - (low) = (u32)_val; \ - (high) = (u32)(_val >> 32); \ - } while (0) +#define rdtscp(low, high, aux) \ +do { \ + unsigned long long _val = native_read_tscp(&(aux)); \ + (low) = (u32)_val; \ + (high) = (u32)(_val >> 32); \ +} while (0) #define rdtscpll(val, aux) (val) = native_read_tscp(&(aux)) #endif /* !CONFIG_PARAVIRT */ -#define checking_wrmsrl(msr,val) wrmsr_safe(msr,(u32)(val),(u32)((val)>>32)) +#define checking_wrmsrl(msr, val) wrmsr_safe((msr), (u32)(val), \ + (u32)((val) >> 32)) -#define write_tsc(val1,val2) wrmsr(0x10, val1, val2) +#define write_tsc(val1, val2) wrmsr(0x10, (val1), (val2)) -#define write_rdtscp_aux(val) wrmsr(0xc0000103, val, 0) +#define write_rdtscp_aux(val) wrmsr(0xc0000103, (val), 0) #ifdef CONFIG_SMP void rdmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h); void wrmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h); int rdmsr_safe_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h); + int wrmsr_safe_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h); #else /* CONFIG_SMP */ static inline void rdmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h) @@ -195,7 +205,8 @@ static inline void wrmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h) { wrmsr(msr_no, l, h); } -static inline int rdmsr_safe_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h) +static inline int rdmsr_safe_on_cpu(unsigned int cpu, u32 msr_no, + u32 *l, u32 *h) { return rdmsr_safe(msr_no, l, h); } |