diff options
Diffstat (limited to 'include/asm-frv/atomic.h')
| -rw-r--r-- | include/asm-frv/atomic.h | 98 |
1 files changed, 7 insertions, 91 deletions
diff --git a/include/asm-frv/atomic.h b/include/asm-frv/atomic.h index f6539ff569c..a59f684b4f3 100644 --- a/include/asm-frv/atomic.h +++ b/include/asm-frv/atomic.h @@ -218,51 +218,12 @@ extern unsigned long atomic_test_and_XOR_mask(unsigned long mask, volatile unsig __typeof__(*(ptr)) __xg_orig; \ \ switch (sizeof(__xg_orig)) { \ - case 1: \ - asm volatile( \ - "0: \n" \ - " orcc gr0,gr0,gr0,icc3 \n" \ - " ckeq icc3,cc7 \n" \ - " ldub.p %M0,%1 \n" \ - " orcr cc7,cc7,cc3 \n" \ - " cstb.p %2,%M0 ,cc3,#1 \n" \ - " corcc gr29,gr29,gr0 ,cc3,#1 \n" \ - " beq icc3,#0,0b \n" \ - : "+U"(*__xg_ptr), "=&r"(__xg_orig) \ - : "r"(x) \ - : "memory", "cc7", "cc3", "icc3" \ - ); \ - break; \ - \ - case 2: \ - asm volatile( \ - "0: \n" \ - " orcc gr0,gr0,gr0,icc3 \n" \ - " ckeq icc3,cc7 \n" \ - " lduh.p %M0,%1 \n" \ - " orcr cc7,cc7,cc3 \n" \ - " csth.p %2,%M0 ,cc3,#1 \n" \ - " corcc gr29,gr29,gr0 ,cc3,#1 \n" \ - " beq icc3,#0,0b \n" \ - : "+U"(*__xg_ptr), "=&r"(__xg_orig) \ - : "r"(x) \ - : "memory", "cc7", "cc3", "icc3" \ - ); \ - break; \ - \ case 4: \ asm volatile( \ - "0: \n" \ - " orcc gr0,gr0,gr0,icc3 \n" \ - " ckeq icc3,cc7 \n" \ - " ld.p %M0,%1 \n" \ - " orcr cc7,cc7,cc3 \n" \ - " cst.p %2,%M0 ,cc3,#1 \n" \ - " corcc gr29,gr29,gr0 ,cc3,#1 \n" \ - " beq icc3,#0,0b \n" \ - : "+U"(*__xg_ptr), "=&r"(__xg_orig) \ + "swap%I0 %2,%M0" \ + : "+m"(*__xg_ptr), "=&r"(__xg_orig) \ : "r"(x) \ - : "memory", "cc7", "cc3", "icc3" \ + : "memory" \ ); \ break; \ \ @@ -277,8 +238,6 @@ extern unsigned long atomic_test_and_XOR_mask(unsigned long mask, volatile unsig #else -extern uint8_t __xchg_8 (uint8_t i, volatile void *v); -extern uint16_t __xchg_16(uint16_t i, volatile void *v); extern uint32_t __xchg_32(uint32_t i, volatile void *v); #define xchg(ptr, x) \ @@ -287,8 +246,6 @@ extern uint32_t __xchg_32(uint32_t i, volatile void *v); __typeof__(*(ptr)) __xg_orig; \ \ switch (sizeof(__xg_orig)) { \ - case 1: __xg_orig = (__typeof__(*(ptr))) __xchg_8 ((uint8_t) x, __xg_ptr); break; \ - case 2: __xg_orig = (__typeof__(*(ptr))) __xchg_16((uint16_t) x, __xg_ptr); break; \ case 4: __xg_orig = (__typeof__(*(ptr))) __xchg_32((uint32_t) x, __xg_ptr); break; \ default: \ __xg_orig = 0; \ @@ -318,46 +275,6 @@ extern uint32_t __xchg_32(uint32_t i, volatile void *v); __typeof__(*(ptr)) __xg_new = (new); \ \ switch (sizeof(__xg_orig)) { \ - case 1: \ - asm volatile( \ - "0: \n" \ - " orcc gr0,gr0,gr0,icc3 \n" \ - " ckeq icc3,cc7 \n" \ - " ldub.p %M0,%1 \n" \ - " orcr cc7,cc7,cc3 \n" \ - " sub%I4 %1,%4,%2 \n" \ - " sllcc %2,#24,gr0,icc0 \n" \ - " bne icc0,#0,1f \n" \ - " cstb.p %3,%M0 ,cc3,#1 \n" \ - " corcc gr29,gr29,gr0 ,cc3,#1 \n" \ - " beq icc3,#0,0b \n" \ - "1: \n" \ - : "+U"(*__xg_ptr), "=&r"(__xg_orig), "=&r"(__xg_tmp) \ - : "r"(__xg_new), "NPr"(__xg_test) \ - : "memory", "cc7", "cc3", "icc3", "icc0" \ - ); \ - break; \ - \ - case 2: \ - asm volatile( \ - "0: \n" \ - " orcc gr0,gr0,gr0,icc3 \n" \ - " ckeq icc3,cc7 \n" \ - " lduh.p %M0,%1 \n" \ - " orcr cc7,cc7,cc3 \n" \ - " sub%I4 %1,%4,%2 \n" \ - " sllcc %2,#16,gr0,icc0 \n" \ - " bne icc0,#0,1f \n" \ - " csth.p %3,%M0 ,cc3,#1 \n" \ - " corcc gr29,gr29,gr0 ,cc3,#1 \n" \ - " beq icc3,#0,0b \n" \ - "1: \n" \ - : "+U"(*__xg_ptr), "=&r"(__xg_orig), "=&r"(__xg_tmp) \ - : "r"(__xg_new), "NPr"(__xg_test) \ - : "memory", "cc7", "cc3", "icc3", "icc0" \ - ); \ - break; \ - \ case 4: \ asm volatile( \ "0: \n" \ @@ -388,8 +305,6 @@ extern uint32_t __xchg_32(uint32_t i, volatile void *v); #else -extern uint8_t __cmpxchg_8 (uint8_t *v, uint8_t test, uint8_t new); -extern uint16_t __cmpxchg_16(uint16_t *v, uint16_t test, uint16_t new); extern uint32_t __cmpxchg_32(uint32_t *v, uint32_t test, uint32_t new); #define cmpxchg(ptr, test, new) \ @@ -400,8 +315,6 @@ extern uint32_t __cmpxchg_32(uint32_t *v, uint32_t test, uint32_t new); __typeof__(*(ptr)) __xg_new = (new); \ \ switch (sizeof(__xg_orig)) { \ - case 1: __xg_orig = __cmpxchg_8 (__xg_ptr, __xg_test, __xg_new); break; \ - case 2: __xg_orig = __cmpxchg_16(__xg_ptr, __xg_test, __xg_new); break; \ case 4: __xg_orig = __cmpxchg_32(__xg_ptr, __xg_test, __xg_new); break; \ default: \ __xg_orig = 0; \ @@ -414,7 +327,8 @@ extern uint32_t __cmpxchg_32(uint32_t *v, uint32_t test, uint32_t new); #endif -#define atomic_cmpxchg(v, old, new) ((int)cmpxchg(&((v)->counter), old, new)) +#define atomic_cmpxchg(v, old, new) (cmpxchg(&((v)->counter), old, new)) +#define atomic_xchg(v, new) (xchg(&((v)->counter), new)) #define atomic_add_unless(v, a, u) \ ({ \ @@ -424,6 +338,8 @@ extern uint32_t __cmpxchg_32(uint32_t *v, uint32_t test, uint32_t new); c = old; \ c != (u); \ }) + #define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0) +#include <asm-generic/atomic.h> #endif /* _ASM_ATOMIC_H */ |