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| author | Marius Strobl <marius@FreeBSD.org> | 2018-11-27 12:31:58 +0000 |
|---|---|---|
| committer | Marius Strobl <marius@FreeBSD.org> | 2018-11-27 12:31:58 +0000 |
| commit | 48289654a0ac91e3c29f25461373b3f1b7c82095 (patch) | |
| tree | 686e38527660732f3fbdd8be8f05e02c6c8ab118 | |
| parent | 2eb56105b99f3192faf9b43cd870f5b05d9701cb (diff) | |
| download | src-test2-vendor/ck.tar.gz src-test2-vendor/ck.zip | |
Import CK as of 21d3e319407d19dece16ee317c757ffc54a452bc, which makes itsvendor/ck/20181120vendor/ck
sparcv9 atomics compatible with the FreeBSD kernel by using instructions
which access the appropriate address space.
Notes
Notes:
svn path=/vendor-sys/ck/dist/; revision=341039
svn path=/vendor-sys/ck/20181120/; revision=341040; tag=vendor/ck/20181120
| -rw-r--r-- | include/gcc/sparcv9/ck_pr.h | 30 |
1 files changed, 25 insertions, 5 deletions
diff --git a/include/gcc/sparcv9/ck_pr.h b/include/gcc/sparcv9/ck_pr.h index 7dc7172557b6..b60e199d3dc5 100644 --- a/include/gcc/sparcv9/ck_pr.h +++ b/include/gcc/sparcv9/ck_pr.h @@ -136,11 +136,26 @@ CK_PR_STORE_S(int, int, "stsw") #undef CK_PR_STORE_S #undef CK_PR_STORE +/* Use the appropriate address space for atomics within the FreeBSD kernel. */ +#if defined(__FreeBSD__) && defined(_KERNEL) +#include <sys/cdefs.h> +#include <machine/atomic.h> +#define CK_PR_INS_CAS "casa" +#define CK_PR_INS_CASX "casxa" +#define CK_PR_INS_SWAP "swapa" +#define CK_PR_ASI_ATOMIC __XSTRING(__ASI_ATOMIC) +#else +#define CK_PR_INS_CAS "cas" +#define CK_PR_INS_CASX "casx" +#define CK_PR_INS_SWAP "swap" +#define CK_PR_ASI_ATOMIC "" +#endif + 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" + __asm__ __volatile__(CK_PR_INS_CASX " [%1] " CK_PR_ASI_ATOMIC ", %2, %0" : "+&r" (set) : "r" (target), "r" (compare) @@ -154,7 +169,7 @@ CK_CC_INLINE static bool ck_pr_cas_64(uint64_t *target, uint64_t compare, uint64_t set) { - __asm__ __volatile__("casx [%1], %2, %0" + __asm__ __volatile__(CK_PR_INS_CASX " [%1] " CK_PR_ASI_ATOMIC ", %2, %0" : "+&r" (set) : "r" (target), "r" (compare) @@ -181,7 +196,7 @@ ck_pr_cas_ptr_value(void *target, void *compare, void *set, void *previous) CK_CC_INLINE static bool \ ck_pr_cas_##N##_value(T *target, T compare, T set, T *value) \ { \ - __asm__ __volatile__("cas [%1], %2, %0" \ + __asm__ __volatile__(CK_PR_INS_CAS " [%1] " CK_PR_ASI_ATOMIC ", %2, %0" \ : "+&r" (set) \ : "r" (target), \ "r" (compare) \ @@ -192,7 +207,7 @@ ck_pr_cas_ptr_value(void *target, void *compare, void *set, void *previous) CK_CC_INLINE static bool \ ck_pr_cas_##N(T *target, T compare, T set) \ { \ - __asm__ __volatile__("cas [%1], %2, %0" \ + __asm__ __volatile__(CK_PR_INS_CAS " [%1] " CK_PR_ASI_ATOMIC ", %2, %0" \ : "+&r" (set) \ : "r" (target), \ "r" (compare) \ @@ -211,7 +226,7 @@ CK_PR_CAS(int, int) ck_pr_fas_##N(T *target, T update) \ { \ \ - __asm__ __volatile__("swap [%1], %0" \ + __asm__ __volatile__(CK_PR_INS_SWAP " [%1] " CK_PR_ASI_ATOMIC ", %0" \ : "+&r" (update) \ : "r" (target) \ : "memory"); \ @@ -224,5 +239,10 @@ CK_PR_FAS(32, uint32_t) #undef CK_PR_FAS +#undef CK_PR_INS_CAS +#undef CK_PR_INS_CASX +#undef CK_PR_INS_SWAP +#undef CK_PR_ASI_ATOMIC + #endif /* CK_PR_SPARCV9_H */ |