diff options
| author | Artur Grabowski <art@cvs.openbsd.org> | 2000-01-17 21:06:45 +0000 |
|---|---|---|
| committer | Artur Grabowski <art@cvs.openbsd.org> | 2000-01-17 21:06:45 +0000 |
| commit | 7447457277e6d12eabf22a42a195a3e5b85d87d1 (patch) | |
| tree | 5e2393d3fff866ad15fc6d4de81d55e1bdf508e3 /sys/arch | |
| parent | b58133a571d950bd45cebcd6d7632bf0d5a21379 (diff) | |
pmap_{zero,copy}_page4m: use getptep4m to get the ptes for vpages.
This way we only walk the tables once every boot and we don't have to
switch to context 0 on every call.
Diffstat (limited to 'sys/arch')
| -rw-r--r-- | sys/arch/sparc/sparc/pmap.c | 51 |
1 files changed, 27 insertions, 24 deletions
diff --git a/sys/arch/sparc/sparc/pmap.c b/sys/arch/sparc/sparc/pmap.c index e2e70a4c1a3..9c8c66b8c6e 100644 --- a/sys/arch/sparc/sparc/pmap.c +++ b/sys/arch/sparc/sparc/pmap.c @@ -1,4 +1,4 @@ -/* $OpenBSD: pmap.c,v 1.59 2000/01/14 22:18:28 art Exp $ */ +/* $OpenBSD: pmap.c,v 1.60 2000/01/17 21:06:44 art Exp $ */ /* $NetBSD: pmap.c,v 1.118 1998/05/19 19:00:18 thorpej Exp $ */ /* @@ -6401,10 +6401,13 @@ void pmap_zero_page4m(pa) paddr_t pa; { - caddr_t va; int pte; - int ctx; struct pvlist *pv; + static int *ptep; + static vaddr_t va; + + if (ptep == NULL) + ptep = getptep4m(pmap_kernel(), (va = (vaddr_t)vpage[0])); pv = pvhead(atop(pa)); if (((pa & (PMAP_TNC_SRMMU & ~PMAP_NC)) == 0) && pv && @@ -6424,14 +6427,11 @@ pmap_zero_page4m(pa) else pte &= ~SRMMU_PG_C; - /* XXX - must use context 0 or else setpte4m() will fail */ - ctx = getcontext4m(); - setcontext4m(0); - va = vpage[0]; - setpte4m((vaddr_t) va, pte); - qzero(va, NBPG); - setpte4m((vaddr_t) va, SRMMU_TEINVALID); - setcontext4m(ctx); + tlb_flush_page(va); + setpgt4m(ptep, pte); + qzero((caddr_t)va, PAGE_SIZE); + tlb_flush_page(va); + setpgt4m(ptep, SRMMU_TEINVALID); } /* @@ -6447,10 +6447,15 @@ void pmap_copy_page4m(src, dst) paddr_t src, dst; { - caddr_t sva, dva; int spte, dpte; - int ctx; struct pvlist *pv; + static int *sptep, *dptep; + static vaddr_t sva, dva; + + if (sptep == NULL) { + sptep = getptep4m(pmap_kernel(), (sva = (vaddr_t)vpage[0])); + dptep = getptep4m(pmap_kernel(), (dva = (vaddr_t)vpage[1])); + } pv = pvhead(atop(src)); if (pv && CACHEINFO.c_vactype == VAC_WRITEBACK) @@ -6470,18 +6475,16 @@ pmap_copy_page4m(src, dst) else dpte &= ~SRMMU_PG_C; - /* XXX - must use context 0 or else setpte4m() will fail */ - ctx = getcontext4m(); - setcontext4m(0); - sva = vpage[0]; - dva = vpage[1]; - setpte4m((vaddr_t) sva, spte); - setpte4m((vaddr_t) dva, dpte); - qcopy(sva, dva, NBPG); /* loads cache, so we must ... */ + tlb_flush_page(sva); + setpgt4m(sptep, spte); + tlb_flush_page(dva); + setpgt4m(dptep, dpte); + qcopy((caddr_t)sva, (caddr_t)dva, PAGE_SIZE); cache_flush_page((int)sva); - setpte4m((vaddr_t) sva, SRMMU_TEINVALID); - setpte4m((vaddr_t) dva, SRMMU_TEINVALID); - setcontext4m(ctx); + tlb_flush_page(sva); + setpgt4m(sptep, SRMMU_TEINVALID); + tlb_flush_page(dva); + setpgt4m(dptep, SRMMU_TEINVALID); } #endif /* Sun4M */ |