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changed qse_thr_setstacksize() to align the given value to the page size

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hyung-hwan
2018-10-29 08:45:31 +00:00
parent 38ffad3544
commit 2c02013ec1
3 changed files with 28 additions and 17 deletions
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25
qse/include/qse/si/spl.h
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@ -211,13 +211,13 @@ asm void qse_spl_unlock (qse_spl_t* spl)
__asm__ volatile (
"__back:\n"
"lwarx %0,0,%1\n" /* load and reserve. rc(%0) = *spl(%1) */
"cmpwi cr0,%0,0\n" /* cr0 = (rc compare-with 0) */
"li %0,0\n" /* rc = 0(failure) */
"bne- __exit\n" /* if cr0 != 0, goto _exit; */
"li %0,1\n" /* rc = 1(success) */
"stwcx. %0,0,%1\n" /* *spl(%1) = 1(value in rc) if reserved */
"bne- __back\n" /* if reservation is lost, goto __back */
"lwarx %0,0,%1\n" /* load and reserve. rc(%0) = *spl(%1) */
"cmpwi cr0,%0,0\n" /* cr0 = (rc compare-with 0) */
"li %0,0\n" /* rc = 0(failure) */
"bne cr0,__exit\n" /* if cr0 != 0, goto _exit; */
"li %0,1\n" /* rc = 1(success) */
"stwcx. %0,0,%1\n" /* *spl(%1) = 1(value in rc) if reserved */
"bne cr0,__back\n" /* if reservation is lost, goto __back */
#if 1
"lwsync\n"
#else
@ -233,20 +233,17 @@ asm void qse_spl_unlock (qse_spl_t* spl)
}
static QSE_INLINE void qse_spl_lock (qse_spl_t* spl)
{
int x;
do
{
x = qse_spl_trylock(spl);
}
while (x);
while (!qse_spl_trylock(spl)) /* nothing */;
}
static QSE_INLINE void qse_spl_unlock (qse_spl_t* spl)
{
__asm__ volatile (
#if 1
"lwsync\n"
#else
#elif 0
"sync\n"
#else
"eieio\n"
#endif
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