diff options
| author | Artur Grabowski <art@cvs.openbsd.org> | 2000-02-04 19:16:14 +0000 |
|---|---|---|
| committer | Artur Grabowski <art@cvs.openbsd.org> | 2000-02-04 19:16:14 +0000 |
| commit | f36ae7656cce9f52433cf3f1c1ab0b69ebaf3d2e (patch) | |
| tree | e59ecf9d0c2affa1c9ac68eafbdc7412ff311780 /sys/arch | |
| parent | d31a7560b8583bab1612416f3f205cdf129c4d02 (diff) | |
In cases where we flush a page from the cache and tlb we want to
flush it from the tlb _after_ the cache because some cache flushes can reload
the tlb. (fixes random coredumps on some cpus).
Diffstat (limited to 'sys/arch')
| -rw-r--r-- | sys/arch/sparc/sparc/pmap.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/sys/arch/sparc/sparc/pmap.c b/sys/arch/sparc/sparc/pmap.c index 9ef0111d7cc..882dee7145d 100644 --- a/sys/arch/sparc/sparc/pmap.c +++ b/sys/arch/sparc/sparc/pmap.c @@ -1,4 +1,4 @@ -/* $OpenBSD: pmap.c,v 1.74 2000/02/04 15:46:09 art Exp $ */ +/* $OpenBSD: pmap.c,v 1.75 2000/02/04 19:16:13 art Exp $ */ /* $NetBSD: pmap.c,v 1.118 1998/05/19 19:00:18 thorpej Exp $ */ /* @@ -4943,7 +4943,6 @@ pmap_changeprot4m(pm, va, prot, wired) if (pm->pm_ctx) { ctx = getcontext4m(); setcontext4m(pm->pm_ctxnum); - tlb_flush_page(va); /* * Use current context. * Flush cache if page has been referenced to @@ -4953,6 +4952,7 @@ pmap_changeprot4m(pm, va, prot, wired) if ((tpte & (SRMMU_PG_C|SRMMU_PGTYPE)) == (SRMMU_PG_C|PG_SUN4M_OBMEM)) cache_flush_page(va); + tlb_flush_page(va); setcontext4m(ctx); } else { tpte = *ptep; @@ -6485,7 +6485,6 @@ kvm_setcache(va, npages, cached) int *ptep; ptep = getptep4m(pmap_kernel(), (vaddr_t)va); - tlb_flush_page((vaddr_t)va); pte = *ptep; #ifdef DIAGNOSTIC if ((pte & SRMMU_TETYPE) != SRMMU_TEPTE) @@ -6502,6 +6501,7 @@ kvm_setcache(va, npages, cached) pte |= SRMMU_PG_C; else pte &= ~SRMMU_PG_C; + tlb_flush_page((vaddr_t)va); setpgt4m(ptep, pte); if ((pte & SRMMU_PGTYPE) == PG_SUN4M_OBMEM) |