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There's no need to call pmap_tlb_invalidate_addr if pmap_remove_all was

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called and PMAP_DEFERRED_ACTIVATE is set.
This commit is contained in:
skrll 2017-09-07 06:29:47 +00:00
parent 50d91653ef
commit 67f418007a
1 changed files with 15 additions and 10 deletions
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25
sys/uvm/pmap/pmap.c
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@ -1,4 +1,4 @@
/* $NetBSD: pmap.c,v 1.35 2017/06/24 07:30:17 skrll Exp $ */
/* $NetBSD: pmap.c,v 1.36 2017/09/07 06:29:47 skrll Exp $ */
/*-
* Copyright (c) 1998, 2001 The NetBSD Foundation, Inc.
@ -67,7 +67,7 @@
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.35 2017/06/24 07:30:17 skrll Exp $");
__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.36 2017/09/07 06:29:47 skrll Exp $");
/*
* Manages physical address maps.
@ -774,10 +774,12 @@ pmap_page_remove(struct vm_page *pg)
pmap_md_tlb_miss_lock_enter();
const pt_entry_t npte = pte_nv_entry(is_kernel_pmap_p);
pte_set(ptep, npte);
/*
* Flush the TLB for the given address.
*/
pmap_tlb_invalidate_addr(pmap, va);
if (__predict_true(!(pmap->pm_flags & PMAP_DEFERRED_ACTIVATE))) {
/*
* Flush the TLB for the given address.
*/
pmap_tlb_invalidate_addr(pmap, va);
}
pmap_md_tlb_miss_lock_exit();
/*
@ -903,10 +905,13 @@ pmap_pte_remove(pmap_t pmap, vaddr_t sva, vaddr_t eva, pt_entry_t *ptep,
}
pmap_md_tlb_miss_lock_enter();
pte_set(ptep, npte);
/*
* Flush the TLB for the given address.
*/
pmap_tlb_invalidate_addr(pmap, sva);
if (__predict_true(!(pmap->pm_flags & PMAP_DEFERRED_ACTIVATE))) {
/*
* Flush the TLB for the given address.
*/
pmap_tlb_invalidate_addr(pmap, sva);
}
pmap_md_tlb_miss_lock_exit();
}