diff options
Diffstat (limited to 'include/asm-x86/system_32.h')
-rw-r--r-- | include/asm-x86/system_32.h | 94 |
1 files changed, 0 insertions, 94 deletions
diff --git a/include/asm-x86/system_32.h b/include/asm-x86/system_32.h index 8db478984ed..c05568290ad 100644 --- a/include/asm-x86/system_32.h +++ b/include/asm-x86/system_32.h @@ -1,7 +1,6 @@ #ifndef __ASM_SYSTEM_H #define __ASM_SYSTEM_H -#include <linux/kernel.h> #include <asm/segment.h> #include <asm/cpufeature.h> #include <asm/cmpxchg.h> @@ -34,99 +33,6 @@ extern struct task_struct * FASTCALL(__switch_to(struct task_struct *prev, struc "2" (prev), "d" (next)); \ } while (0) -static inline void native_clts(void) -{ - asm volatile ("clts"); -} - -static inline unsigned long native_read_cr0(void) -{ - unsigned long val; - asm volatile("movl %%cr0,%0\n\t" :"=r" (val)); - return val; -} - -static inline void native_write_cr0(unsigned long val) -{ - asm volatile("movl %0,%%cr0": :"r" (val)); -} - -static inline unsigned long native_read_cr2(void) -{ - unsigned long val; - asm volatile("movl %%cr2,%0\n\t" :"=r" (val)); - return val; -} - -static inline void native_write_cr2(unsigned long val) -{ - asm volatile("movl %0,%%cr2": :"r" (val)); -} - -static inline unsigned long native_read_cr3(void) -{ - unsigned long val; - asm volatile("movl %%cr3,%0\n\t" :"=r" (val)); - return val; -} - -static inline void native_write_cr3(unsigned long val) -{ - asm volatile("movl %0,%%cr3": :"r" (val)); -} - -static inline unsigned long native_read_cr4(void) -{ - unsigned long val; - asm volatile("movl %%cr4,%0\n\t" :"=r" (val)); - return val; -} - -static inline unsigned long native_read_cr4_safe(void) -{ - unsigned long val; - /* This could fault if %cr4 does not exist */ - asm volatile("1: movl %%cr4, %0 \n" - "2: \n" - ".section __ex_table,\"a\" \n" - ".long 1b,2b \n" - ".previous \n" - : "=r" (val): "0" (0)); - return val; -} - -static inline void native_write_cr4(unsigned long val) -{ - asm volatile("movl %0,%%cr4": :"r" (val)); -} - -static inline void native_wbinvd(void) -{ - asm volatile("wbinvd": : :"memory"); -} - -#ifdef CONFIG_PARAVIRT -#include <asm/paravirt.h> -#else -#define read_cr0() (native_read_cr0()) -#define write_cr0(x) (native_write_cr0(x)) -#define read_cr2() (native_read_cr2()) -#define write_cr2(x) (native_write_cr2(x)) -#define read_cr3() (native_read_cr3()) -#define write_cr3(x) (native_write_cr3(x)) -#define read_cr4() (native_read_cr4()) -#define read_cr4_safe() (native_read_cr4_safe()) -#define write_cr4(x) (native_write_cr4(x)) -#define wbinvd() (native_wbinvd()) - -/* Clear the 'TS' bit */ -#define clts() (native_clts()) - -#endif/* CONFIG_PARAVIRT */ - -/* Set the 'TS' bit */ -#define stts() write_cr0(8 | read_cr0()) - #endif /* __KERNEL__ */ |