diff options
Diffstat (limited to 'arch/x86/include')
-rw-r--r-- | arch/x86/include/asm/segment.h | 5 | ||||
-rw-r--r-- | arch/x86/include/asm/vgtod.h | 8 |
2 files changed, 6 insertions, 7 deletions
diff --git a/arch/x86/include/asm/segment.h b/arch/x86/include/asm/segment.h index e293c122d0d5..e3e788ea52e5 100644 --- a/arch/x86/include/asm/segment.h +++ b/arch/x86/include/asm/segment.h @@ -186,8 +186,7 @@ #define GDT_ENTRY_TLS_MIN 12 #define GDT_ENTRY_TLS_MAX 14 -/* Abused to load per CPU data from limit */ -#define GDT_ENTRY_PER_CPU 15 +#define GDT_ENTRY_CPU_NUMBER 15 /* * Number of entries in the GDT table: @@ -207,7 +206,7 @@ #define __USER_DS (GDT_ENTRY_DEFAULT_USER_DS*8 + 3) #define __USER32_DS __USER_DS #define __USER_CS (GDT_ENTRY_DEFAULT_USER_CS*8 + 3) -#define __PER_CPU_SEG (GDT_ENTRY_PER_CPU*8 + 3) +#define __CPU_NUMBER_SEG (GDT_ENTRY_CPU_NUMBER*8 + 3) #endif diff --git a/arch/x86/include/asm/vgtod.h b/arch/x86/include/asm/vgtod.h index 53748541c487..4e81ea920722 100644 --- a/arch/x86/include/asm/vgtod.h +++ b/arch/x86/include/asm/vgtod.h @@ -86,9 +86,9 @@ static inline unsigned int __getcpu(void) unsigned int p; /* - * Load per CPU data from GDT. LSL is faster than RDTSCP and - * works on all CPUs. This is volatile so that it orders - * correctly wrt barrier() and to keep gcc from cleverly + * Load CPU (and node) number from GDT. LSL is faster than RDTSCP + * and works on all CPUs. This is volatile so that it orders + * correctly with respect to barrier() and to keep GCC from cleverly * hoisting it out of the calling function. * * If RDPID is available, use it. @@ -96,7 +96,7 @@ static inline unsigned int __getcpu(void) alternative_io ("lsl %[seg],%[p]", ".byte 0xf3,0x0f,0xc7,0xf8", /* RDPID %eax/rax */ X86_FEATURE_RDPID, - [p] "=a" (p), [seg] "r" (__PER_CPU_SEG)); + [p] "=a" (p), [seg] "r" (__CPU_NUMBER_SEG)); return p; } |