diff options
Diffstat (limited to 'include/asm-x86/processor-cyrix.h')
-rw-r--r-- | include/asm-x86/processor-cyrix.h | 38 |
1 files changed, 0 insertions, 38 deletions
diff --git a/include/asm-x86/processor-cyrix.h b/include/asm-x86/processor-cyrix.h deleted file mode 100644 index 1198f2a0e42..00000000000 --- a/include/asm-x86/processor-cyrix.h +++ /dev/null @@ -1,38 +0,0 @@ -/* - * NSC/Cyrix CPU indexed register access. Must be inlined instead of - * macros to ensure correct access ordering - * Access order is always 0x22 (=offset), 0x23 (=value) - * - * When using the old macros a line like - * setCx86(CX86_CCR2, getCx86(CX86_CCR2) | 0x88); - * gets expanded to: - * do { - * outb((CX86_CCR2), 0x22); - * outb((({ - * outb((CX86_CCR2), 0x22); - * inb(0x23); - * }) | 0x88), 0x23); - * } while (0); - * - * which in fact violates the access order (= 0x22, 0x22, 0x23, 0x23). - */ - -static inline u8 getCx86(u8 reg) -{ - outb(reg, 0x22); - return inb(0x23); -} - -static inline void setCx86(u8 reg, u8 data) -{ - outb(reg, 0x22); - outb(data, 0x23); -} - -#define getCx86_old(reg) ({ outb((reg), 0x22); inb(0x23); }) - -#define setCx86_old(reg, data) do { \ - outb((reg), 0x22); \ - outb((data), 0x23); \ -} while (0) - |