Skip to content

Commit

Permalink
---
Browse files Browse the repository at this point in the history
yaml
---
r: 88987
b: refs/heads/master
c: abb0ade
h: refs/heads/master
i:
  88985: 8e4e329
  88983: a417ca6
v: v3
  • Loading branch information
Joe Perches authored and Ingo Molnar committed Apr 17, 2008
1 parent b52bd5b commit 57f13bf
Show file tree
Hide file tree
Showing 2 changed files with 43 additions and 40 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 934902b474bdb235a273985ad4c61eb136afe11d
refs/heads/master: abb0ade013507c93a9a0b263bbb7b0327d7c38db
81 changes: 42 additions & 39 deletions trunk/include/asm-x86/msr.h
Original file line number Diff line number Diff line change
Expand Up @@ -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);
}

Expand All @@ -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
Expand Down Expand Up @@ -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);
Expand All @@ -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;
}

Expand Down Expand Up @@ -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)
Expand All @@ -141,50 +141,52 @@ 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; \
})

#define rdtscl(low) \
((low) = (u32)native_read_tsc())

#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)
Expand All @@ -195,7 +197,8 @@ 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);
}
Expand Down

0 comments on commit 57f13bf

Please sign in to comment.