diff options
Diffstat (limited to 'freebsd/sys/contrib/ck/include/gcc/sparcv9/ck_pr.h')
| -rw-r--r-- | freebsd/sys/contrib/ck/include/gcc/sparcv9/ck_pr.h | 228 |
1 files changed, 228 insertions, 0 deletions
diff --git a/freebsd/sys/contrib/ck/include/gcc/sparcv9/ck_pr.h b/freebsd/sys/contrib/ck/include/gcc/sparcv9/ck_pr.h new file mode 100644 index 00000000..7dc71725 --- /dev/null +++ b/freebsd/sys/contrib/ck/include/gcc/sparcv9/ck_pr.h @@ -0,0 +1,228 @@ +/* + * Copyright 2009, 2010 Samy Al Bahra. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef CK_PR_SPARCV9_H +#define CK_PR_SPARCV9_H + +#ifndef CK_PR_H +#error Do not include this file directly, use ck_pr.h +#endif + +#include <ck_cc.h> +#include <ck_md.h> + +/* + * The following represent supported atomic operations. + * These operations may be emulated. + */ +#include "ck_f_pr.h" + +/* + * Minimum interface requirement met. + */ +#define CK_F_PR + +/* + * Order loads at the least. + */ +CK_CC_INLINE static void +ck_pr_stall(void) +{ + + __asm__ __volatile__("membar #LoadLoad" ::: "memory"); + return; +} + +#define CK_PR_FENCE(T, I) \ + CK_CC_INLINE static void \ + ck_pr_fence_strict_##T(void) \ + { \ + __asm__ __volatile__(I ::: "memory"); \ + } + +/* + * Atomic operations are treated as both load and store + * operations on SPARCv9. + */ +CK_PR_FENCE(atomic, "membar #StoreStore") +CK_PR_FENCE(atomic_store, "membar #StoreStore") +CK_PR_FENCE(atomic_load, "membar #StoreLoad") +CK_PR_FENCE(store_atomic, "membar #StoreStore") +CK_PR_FENCE(load_atomic, "membar #LoadStore") +CK_PR_FENCE(store, "membar #StoreStore") +CK_PR_FENCE(store_load, "membar #StoreLoad") +CK_PR_FENCE(load, "membar #LoadLoad") +CK_PR_FENCE(load_store, "membar #LoadStore") +CK_PR_FENCE(memory, "membar #MemIssue") +CK_PR_FENCE(acquire, "membar #LoadLoad | #LoadStore") +CK_PR_FENCE(release, "membar #LoadStore | #StoreStore") +CK_PR_FENCE(acqrel, "membar #LoadLoad | #LoadStore | #StoreStore") +CK_PR_FENCE(lock, "membar #LoadLoad | #LoadStore | #StoreStore | #StoreLoad") +CK_PR_FENCE(unlock, "membar #LoadStore | #StoreStore") + +#undef CK_PR_FENCE + +#define CK_PR_LOAD(S, M, T, C, I) \ + CK_CC_INLINE static T \ + ck_pr_md_load_##S(const M *target) \ + { \ + T r; \ + __asm__ __volatile__(I " [%1], %0" \ + : "=&r" (r) \ + : "r" (target) \ + : "memory"); \ + return (r); \ + } + +CK_PR_LOAD(ptr, void, void *, uint64_t, "ldx") + +#define CK_PR_LOAD_S(S, T, I) CK_PR_LOAD(S, T, T, T, I) + +CK_PR_LOAD_S(64, uint64_t, "ldx") +CK_PR_LOAD_S(32, uint32_t, "lduw") +CK_PR_LOAD_S(uint, unsigned int, "lduw") +CK_PR_LOAD_S(double, double, "ldx") +CK_PR_LOAD_S(int, int, "ldsw") + +#undef CK_PR_LOAD_S +#undef CK_PR_LOAD + +#define CK_PR_STORE(S, M, T, C, I) \ + CK_CC_INLINE static void \ + ck_pr_md_store_##S(M *target, T v) \ + { \ + __asm__ __volatile__(I " %0, [%1]" \ + : \ + : "r" (v), \ + "r" (target) \ + : "memory"); \ + return; \ + } + +CK_PR_STORE(ptr, void, const void *, uint64_t, "stx") + +#define CK_PR_STORE_S(S, T, I) CK_PR_STORE(S, T, T, T, I) + +CK_PR_STORE_S(8, uint8_t, "stub") +CK_PR_STORE_S(64, uint64_t, "stx") +CK_PR_STORE_S(32, uint32_t, "stuw") +CK_PR_STORE_S(uint, unsigned int, "stuw") +CK_PR_STORE_S(double, double, "stx") +CK_PR_STORE_S(int, int, "stsw") + +#undef CK_PR_STORE_S +#undef CK_PR_STORE + +CK_CC_INLINE static bool +ck_pr_cas_64_value(uint64_t *target, uint64_t compare, uint64_t set, uint64_t *value) +{ + + __asm__ __volatile__("casx [%1], %2, %0" + : "+&r" (set) + : "r" (target), + "r" (compare) + : "memory"); + + *value = set; + return (compare == set); +} + +CK_CC_INLINE static bool +ck_pr_cas_64(uint64_t *target, uint64_t compare, uint64_t set) +{ + + __asm__ __volatile__("casx [%1], %2, %0" + : "+&r" (set) + : "r" (target), + "r" (compare) + : "memory"); + + return (compare == set); +} + +CK_CC_INLINE static bool +ck_pr_cas_ptr(void *target, void *compare, void *set) +{ + + return ck_pr_cas_64(target, (uint64_t)compare, (uint64_t)set); +} + +CK_CC_INLINE static bool +ck_pr_cas_ptr_value(void *target, void *compare, void *set, void *previous) +{ + + return ck_pr_cas_64_value(target, (uint64_t)compare, (uint64_t)set, previous); +} + +#define CK_PR_CAS(N, T) \ + CK_CC_INLINE static bool \ + ck_pr_cas_##N##_value(T *target, T compare, T set, T *value) \ + { \ + __asm__ __volatile__("cas [%1], %2, %0" \ + : "+&r" (set) \ + : "r" (target), \ + "r" (compare) \ + : "memory"); \ + *value = set; \ + return (compare == set); \ + } \ + CK_CC_INLINE static bool \ + ck_pr_cas_##N(T *target, T compare, T set) \ + { \ + __asm__ __volatile__("cas [%1], %2, %0" \ + : "+&r" (set) \ + : "r" (target), \ + "r" (compare) \ + : "memory"); \ + return (compare == set); \ + } + +CK_PR_CAS(32, uint32_t) +CK_PR_CAS(uint, unsigned int) +CK_PR_CAS(int, int) + +#undef CK_PR_CAS + +#define CK_PR_FAS(N, T) \ + CK_CC_INLINE static T \ + ck_pr_fas_##N(T *target, T update) \ + { \ + \ + __asm__ __volatile__("swap [%1], %0" \ + : "+&r" (update) \ + : "r" (target) \ + : "memory"); \ + return (update); \ + } + +CK_PR_FAS(int, int) +CK_PR_FAS(uint, unsigned int) +CK_PR_FAS(32, uint32_t) + +#undef CK_PR_FAS + +#endif /* CK_PR_SPARCV9_H */ + |