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Diffstat (limited to 'include/asm-x86/msr.h')
-rw-r--r--include/asm-x86/msr.h89
1 files changed, 50 insertions, 39 deletions
diff --git a/include/asm-x86/msr.h b/include/asm-x86/msr.h
index 3ca29ebebbb..3707650a169 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);
}