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authorMike Travis <travis@sgi.com>2009-01-01 02:34:16 +0100
committerIngo Molnar <mingo@elte.hu>2009-01-03 18:53:31 +0100
commit7eb19553369c46cc1fa64caf120cbcab1b597f7c (patch)
treeef1a3beae706b9497c845d0a2557ceb4d2754998 /arch/x86/include/asm/msr.h
parentx86: mark get_cpu_leaves() with __cpuinit annotation (diff)
parentcpumask: CONFIG_DISABLE_OBSOLETE_CPUMASK_FUNCTIONS (diff)
downloadlinux-7eb19553369c46cc1fa64caf120cbcab1b597f7c.tar.xz
linux-7eb19553369c46cc1fa64caf120cbcab1b597f7c.zip
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-cpumask into merge-rr-cpumask
Conflicts: arch/x86/kernel/io_apic.c kernel/rcuclassic.c kernel/sched.c kernel/time/tick-sched.c Signed-off-by: Mike Travis <travis@sgi.com> [ mingo@elte.hu: backmerged typo fix for io_apic.c ] Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/include/asm/msr.h')
-rw-r--r--arch/x86/include/asm/msr.h15
1 files changed, 8 insertions, 7 deletions
diff --git a/arch/x86/include/asm/msr.h b/arch/x86/include/asm/msr.h
index c2a812ebde89..638bf6241807 100644
--- a/arch/x86/include/asm/msr.h
+++ b/arch/x86/include/asm/msr.h
@@ -22,10 +22,10 @@ static inline unsigned long long native_read_tscp(unsigned int *aux)
}
/*
- * i386 calling convention returns 64-bit value in edx:eax, while
- * x86_64 returns at rax. Also, the "A" constraint does not really
- * mean rdx:rax in x86_64, so we need specialized behaviour for each
- * architecture
+ * both i386 and x86_64 returns 64-bit value in edx:eax, but gcc's "A"
+ * constraint has different meanings. For i386, "A" means exactly
+ * edx:eax, while for x86_64 it doesn't mean rdx:rax or edx:eax. Instead,
+ * it means rax *or* rdx.
*/
#ifdef CONFIG_X86_64
#define DECLARE_ARGS(val, low, high) unsigned low, high
@@ -85,7 +85,8 @@ static inline void native_write_msr(unsigned int msr,
asm volatile("wrmsr" : : "c" (msr), "a"(low), "d" (high) : "memory");
}
-static inline int native_write_msr_safe(unsigned int msr,
+/* Can be uninlined because referenced by paravirt */
+notrace static inline int native_write_msr_safe(unsigned int msr,
unsigned low, unsigned high)
{
int err;
@@ -181,10 +182,10 @@ static inline int rdmsrl_amd_safe(unsigned msr, unsigned long long *p)
}
#define rdtscl(low) \
- ((low) = (u32)native_read_tsc())
+ ((low) = (u32)__native_read_tsc())
#define rdtscll(val) \
- ((val) = native_read_tsc())
+ ((val) = __native_read_tsc())
#define rdpmc(counter, low, high) \
do { \