diff options
Diffstat (limited to 'src/include/cpu/x86/mtrr.h')
| -rw-r--r-- | src/include/cpu/x86/mtrr.h | 24 |
1 files changed, 1 insertions, 23 deletions
diff --git a/src/include/cpu/x86/mtrr.h b/src/include/cpu/x86/mtrr.h index 5741afbb2d..2d7a8416c1 100644 --- a/src/include/cpu/x86/mtrr.h +++ b/src/include/cpu/x86/mtrr.h @@ -61,6 +61,7 @@ #include <stdint.h> #include <stddef.h> +#include <lib.h> /* * The MTRR code has some side effects that the callers should be aware for. @@ -128,29 +129,6 @@ int var_mtrr_set(struct var_mtrr_context *ctx, uintptr_t addr, size_t size, int void commit_mtrr_setup(const struct var_mtrr_context *ctx); void postcar_mtrr_setup(void); -/* fms: find most significant bit set, stolen from Linux Kernel Source. */ -static inline unsigned int fms(unsigned int x) -{ - unsigned int r; - - __asm__("bsrl %1,%0\n\t" - "jnz 1f\n\t" - "movl $0,%0\n" - "1:" : "=r" (r) : "mr" (x)); - return r; -} - -/* fls: find least significant bit set */ -static inline unsigned int fls(unsigned int x) -{ - unsigned int r; - - __asm__("bsfl %1,%0\n\t" - "jnz 1f\n\t" - "movl $32,%0\n" - "1:" : "=r" (r) : "mr" (x)); - return r; -} #endif /* !defined(__ASSEMBLER__) */ /* Align up/down to next power of 2, suitable for assembler |