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Bring the stdatomic for MIPS code slightly more in sync with the ARM version.

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This commit is contained in:
Ed Schouten 2013-06-13 18:47:28 +00:00
parent 67ccda16de
commit f5c2e46822
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=251696
1 changed files with 18 additions and 13 deletions
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31
sys/mips/mips/stdatomic.c
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@ -30,12 +30,15 @@
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/stdatomic.h>
#include <sys/types.h>
#ifdef _KERNEL
#include "opt_global.h"
#endif
#if defined(__SYNC_ATOMICS)
/*
* Memory barriers.
*
@ -48,7 +51,7 @@ __FBSDID("$FreeBSD$");
*/
static inline void
mips_sync(void)
do_sync(void)
{
__asm volatile (
@ -94,7 +97,7 @@ round_to_word(void *ptr)
*/
static inline void
put_1(reg_t *r, uint8_t *offset_ptr, uint8_t val)
put_1(reg_t *r, const uint8_t *offset_ptr, uint8_t val)
{
size_t offset;
@ -103,7 +106,7 @@ put_1(reg_t *r, uint8_t *offset_ptr, uint8_t val)
}
static inline uint8_t
get_1(const reg_t *r, uint8_t *offset_ptr)
get_1(const reg_t *r, const uint8_t *offset_ptr)
{
size_t offset;
@ -112,7 +115,7 @@ get_1(const reg_t *r, uint8_t *offset_ptr)
}
static inline void
put_2(reg_t *r, uint16_t *offset_ptr, uint16_t val)
put_2(reg_t *r, const uint16_t *offset_ptr, uint16_t val)
{
size_t offset;
union {
@ -127,7 +130,7 @@ put_2(reg_t *r, uint16_t *offset_ptr, uint16_t val)
}
static inline uint16_t
get_2(const reg_t *r, uint16_t *offset_ptr)
get_2(const reg_t *r, const uint16_t *offset_ptr)
{
size_t offset;
union {
@ -162,7 +165,7 @@ __sync_lock_test_and_set_##N(uintN_t *mem, uintN_t val) \
negmask.v32 = 0xffffffff; \
put_##N(&negmask, mem, 0); \
\
mips_sync(); \
do_sync(); \
__asm volatile ( \
"1:" \
"\tll %0, %5\n" /* Load old value. */ \
@ -196,7 +199,7 @@ __sync_val_compare_and_swap_##N(uintN_t *mem, uintN_t expected, \
put_##N(&posmask, mem, ~0); \
negmask.v32 = ~posmask.v32; \
\
mips_sync(); \
do_sync(); \
__asm volatile ( \
"1:" \
"\tll %0, %7\n" /* Load old value. */ \
@ -231,7 +234,7 @@ __sync_##name##_##N(uintN_t *mem, uintN_t val) \
put_##N(&posmask, mem, ~0); \
negmask.v32 = ~posmask.v32; \
\
mips_sync(); \
do_sync(); \
__asm volatile ( \
"1:" \
"\tll %0, %7\n" /* Load old value. */ \
@ -265,7 +268,7 @@ __sync_##name##_##N(uintN_t *mem, uintN_t val) \
val32.v32 = idempotence ? 0xffffffff : 0x00000000; \
put_##N(&val32, mem, val); \
\
mips_sync(); \
do_sync(); \
__asm volatile ( \
"1:" \
"\tll %0, %4\n" /* Load old value. */ \
@ -294,7 +297,7 @@ __sync_val_compare_and_swap_4(uint32_t *mem, uint32_t expected,
{
uint32_t old, temp;
mips_sync();
do_sync();
__asm volatile (
"1:"
"\tll %0, %5\n" /* Load old value. */
@ -314,7 +317,7 @@ __sync_##name##_4(uint32_t *mem, uint32_t val) \
{ \
uint32_t old, temp; \
\
mips_sync(); \
do_sync(); \
__asm volatile ( \
"1:" \
"\tll %0, %4\n" /* Load old value. */ \
@ -349,7 +352,7 @@ __sync_val_compare_and_swap_8(uint64_t *mem, uint64_t expected,
{
uint64_t old, temp;
mips_sync();
do_sync();
__asm volatile (
"1:"
"\tlld %0, %5\n" /* Load old value. */
@ -369,7 +372,7 @@ __sync_##name##_8(uint64_t *mem, uint64_t val) \
{ \
uint64_t old, temp; \
\
mips_sync(); \
do_sync(); \
__asm volatile ( \
"1:" \
"\tlld %0, %4\n" /* Load old value. */ \
@ -389,3 +392,5 @@ EMIT_FETCH_AND_OP_8(fetch_and_sub, "dsubu %2, %0, %3")
EMIT_FETCH_AND_OP_8(fetch_and_xor, "xor %2, %0, %3")
#endif /* __mips_n32 || __mips_n64 */
#endif /* __SYNC_ATOMICS */