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Invalidate dcache before polling AP hatched status

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This commit is contained in:
jmcneill 2019-10-20 11:17:41 +00:00
parent bbae070d2b
commit d123fff0f1
1 changed files with 3 additions and 3 deletions
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6
sys/arch/aarch64/aarch64/cpu.c
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@ -1,4 +1,4 @@
/* $NetBSD: cpu.c,v 1.23 2019/10/19 18:04:26 jmcneill Exp $ */
/* $NetBSD: cpu.c,v 1.24 2019/10/20 11:17:41 jmcneill Exp $ */
/*
* Copyright (c) 2017 Ryo Shimizu <ryo@nerv.org>
@ -27,7 +27,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(1, "$NetBSD: cpu.c,v 1.23 2019/10/19 18:04:26 jmcneill Exp $");
__KERNEL_RCSID(1, "$NetBSD: cpu.c,v 1.24 2019/10/20 11:17:41 jmcneill Exp $");
#include "locators.h"
#include "opt_arm_debug.h"
@ -571,7 +571,7 @@ cpu_hatch(struct cpu_info *ci)
bool
cpu_hatched_p(u_int cpuindex)
{
membar_consumer();
aarch64_dcache_inv_range((vaddr_t)&aarch64_cpu_mbox[cpuindex], 4);
return (aarch64_cpu_mbox[cpuindex] & CPU_MBOX_HATCHED) != 0;
}
#endif /* MULTIPROCESSOR */