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MFi386: r254619

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Reimplement atomic_load_acq_64() and atomic_store_rel_64() for i386.

Noticed by:	tinderbox
This commit is contained in:
Jung-uk Kim 2013-08-22 16:39:59 +00:00
parent 4d5c7c633b
commit c01bf4edad
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=254663
1 changed files with 0 additions and 17 deletions
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17
sys/pc98/pc98/machdep.c
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@ -1359,21 +1359,6 @@ idle_sysctl(SYSCTL_HANDLER_ARGS)
SYSCTL_PROC(_machdep, OID_AUTO, idle, CTLTYPE_STRING | CTLFLAG_RW, 0, 0,
idle_sysctl, "A", "currently selected idle function");
uint64_t (*atomic_load_acq_64)(volatile uint64_t *) =
atomic_load_acq_64_i386;
void (*atomic_store_rel_64)(volatile uint64_t *, uint64_t) =
atomic_store_rel_64_i386;
static void
cpu_probe_cmpxchg8b(void)
{
if ((cpu_feature & CPUID_CX8) != 0) {
atomic_load_acq_64 = atomic_load_acq_64_i586;
atomic_store_rel_64 = atomic_store_rel_64_i586;
}
}
/*
* Reset registers to default values on exec.
*/
@ -2422,8 +2407,6 @@ init386(first)
thread0.td_pcb->pcb_cr3 = (int)IdlePTD;
thread0.td_pcb->pcb_ext = 0;
thread0.td_frame = &proc0_tf;
cpu_probe_cmpxchg8b();
}
void