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Move exc_step definition under MIPS64_OCTEON and use it in the zeroising

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memset as length for correctness.
This commit is contained in:
skrll 2020-07-20 10:53:47 +00:00
parent 909bc537c1
commit 29538e30ed
1 changed files with 4 additions and 4 deletions
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8
sys/arch/mips/mips/cpu_subr.c
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@ -1,4 +1,4 @@
/* $NetBSD: cpu_subr.c,v 1.51 2020/07/20 03:26:07 simonb Exp $ */
/* $NetBSD: cpu_subr.c,v 1.52 2020/07/20 10:53:47 skrll Exp $ */
/*-
* Copyright (c) 2010, 2019 The NetBSD Foundation, Inc.
@ -30,7 +30,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: cpu_subr.c,v 1.51 2020/07/20 03:26:07 simonb Exp $");
__KERNEL_RCSID(0, "$NetBSD: cpu_subr.c,v 1.52 2020/07/20 10:53:47 skrll Exp $");
#include "opt_cputype.h"
#include "opt_ddb.h"
@ -122,17 +122,17 @@ struct cpu_info *
cpu_info_alloc(struct pmap_tlb_info *ti, cpuid_t cpu_id, cpuid_t cpu_package_id,
cpuid_t cpu_core_id, cpuid_t cpu_smt_id)
{
const int exc_step = 1 << MIPS_EBASE_EXC_BASE_SHIFT;
KASSERT(cpu_id < MAXCPUS);
#ifdef MIPS64_OCTEON
const int exc_step = 1 << MIPS_EBASE_EXC_BASE_SHIFT;
vaddr_t exc_page = MIPS_UTLB_MISS_EXC_VEC + exc_step * cpu_id;
__CTASSERT(sizeof(struct cpu_info) + sizeof(struct pmap_tlb_info)
<= exc_step - 0x280);
struct cpu_info * const ci = ((struct cpu_info *)(exc_page + exc_step)) - 1;
memset((void *)exc_page, 0, PAGE_SIZE);
memset((void *)exc_page, 0, exc_step);
if (ti == NULL) {
ti = ((struct pmap_tlb_info *)ci) - 1;