| /* |
| * 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 #LoadLoad | #LoadStore | #StoreStore | #StoreLoad") |
| 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 */ |
| |