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Use PMAP_NOCACHE

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This commit is contained in:
matt 2012-09-01 14:44:42 +00:00
parent 192ae8787d
commit f8486b3bd6
2 changed files with 10 additions and 19 deletions
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9
sys/arch/arm/imx/imx_space.c
View File

@ -1,7 +1,7 @@
/* $Id: imx_space.c,v 1.4 2012/09/01 00:06:54 matt Exp $ */
/* $Id: imx_space.c,v 1.5 2012/09/01 14:44:42 matt Exp $ */
/* derived from: */
/* $NetBSD: imx_space.c,v 1.4 2012/09/01 00:06:54 matt Exp $ */
/* $NetBSD: imx_space.c,v 1.5 2012/09/01 14:44:42 matt Exp $ */
/*
* Copyright (c) 2001, 2002 Wasabi Systems, Inc.
@ -206,10 +206,9 @@ int
imx_bs_map(void *t, bus_addr_t bpa, bus_size_t size,
int flag, bus_space_handle_t *bshp)
{
u_long startpa, endpa, pa;
vaddr_t va;
pt_entry_t *pte;
const struct pmap_devmap *pd;
paddr_t startpa, endpa, pa;
vaddr_t va;
if ((pd = pmap_devmap_find_pa(bpa, size)) != NULL) {
/* Device was statically mapped. */

20
sys/arch/arm/omap/omap_space.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: omap_space.c,v 1.5 2012/07/15 20:54:15 matt Exp $ */
/* $NetBSD: omap_space.c,v 1.6 2012/09/01 14:44:43 matt Exp $ */
/*
* bus_space functions for Texas Instruments OMAP processor.
@ -73,7 +73,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: omap_space.c,v 1.5 2012/07/15 20:54:15 matt Exp $");
__KERNEL_RCSID(0, "$NetBSD: omap_space.c,v 1.6 2012/09/01 14:44:43 matt Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@ -207,10 +207,9 @@ int
omap_bs_map(void *t, bus_addr_t bpa, bus_size_t size,
int flag, bus_space_handle_t *bshp)
{
u_long startpa, endpa, pa;
vaddr_t va;
pt_entry_t *pte;
const struct pmap_devmap *pd;
paddr_t startpa, endpa, pa;
vaddr_t va;
if ((pd = pmap_devmap_find_pa(bpa, size)) != NULL) {
/* Device was statically mapped. */
@ -231,15 +230,8 @@ omap_bs_map(void *t, bus_addr_t bpa, bus_size_t size,
*bshp = (bus_space_handle_t)(va + (bpa - startpa));
for (pa = startpa; pa < endpa; pa += PAGE_SIZE, va += PAGE_SIZE) {
pmap_kenter_pa(va, pa, VM_PROT_READ | VM_PROT_WRITE, 0);
if ((flag & BUS_SPACE_MAP_CACHEABLE) == 0) {
pte = vtopte(va);
*pte &= ~L2_S_CACHE_MASK;
PTE_SYNC(pte);
/* XXX: pmap_kenter_pa() also does PTE_SYNC(). a bit of
* waste.
*/
}
pmap_kenter_pa(va, pa, VM_PROT_READ | VM_PROT_WRITE,
(flag & BUS_SPACE_MAP_CACHEABLE) ? 0 : PMAP_NOCACHE);
}
pmap_update(pmap_kernel());