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Fix pmap_procwr() for powerpc/booke: 

- Use PAGE_MASK, not PAGE_SIZE, to calculate page offset.
- Do not drop page offset of target address.
This commit is contained in:
rin 2021-01-06 07:56:19 +00:00
parent 920389c199
commit 8ef35a2e18
1 changed files with 5 additions and 5 deletions
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10
sys/arch/powerpc/booke/booke_pmap.c
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@ -1,4 +1,4 @@
/* $NetBSD: booke_pmap.c,v 1.30 2020/12/20 16:38:25 skrll Exp $ */
/* $NetBSD: booke_pmap.c,v 1.31 2021/01/06 07:56:19 rin Exp $ */
/*-
* Copyright (c) 2010, 2011 The NetBSD Foundation, Inc.
* All rights reserved.
@ -37,7 +37,7 @@
#define __PMAP_PRIVATE
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: booke_pmap.c,v 1.30 2020/12/20 16:38:25 skrll Exp $");
__KERNEL_RCSID(0, "$NetBSD: booke_pmap.c,v 1.31 2021/01/06 07:56:19 rin Exp $");
#ifdef _KERNEL_OPT
#include "opt_multiprocessor.h"
@ -62,7 +62,7 @@ void
pmap_procwr(struct proc *p, vaddr_t va, size_t len)
{
struct pmap * const pmap = p->p_vmspace->vm_map.pmap;
vsize_t off = va & PAGE_SIZE;
vsize_t off = va & PAGE_MASK;
kpreempt_disable();
for (const vaddr_t eva = va + len; va < eva; off = 0) {
@ -78,8 +78,8 @@ pmap_procwr(struct proc *p, vaddr_t va, size_t len)
continue;
}
kpreempt_enable();
dcache_wb(pte_to_paddr(pt_entry), segeva - va);
icache_inv(pte_to_paddr(pt_entry), segeva - va);
dcache_wb(pte_to_paddr(pt_entry) + off, segeva - va);
icache_inv(pte_to_paddr(pt_entry) + off, segeva - va);
kpreempt_disable();
va = segeva;
}