diff options
| author | Miod Vallat <miod@cvs.openbsd.org> | 2011-01-04 21:12:56 +0000 |
|---|---|---|
| committer | Miod Vallat <miod@cvs.openbsd.org> | 2011-01-04 21:12:56 +0000 |
| commit | e18c67189da470f1eb4149eae8e689e05da21f2e (patch) | |
| tree | 148288d513a8bca0e2184b1952aa99c51185dcee /sys/arch | |
| parent | 0199e2060a0344e1d9ea19ae477ea339bccc9da4 (diff) | |
Use pmap_uncache_page() to alter cacheability of pages in bus_dmamem_map()
instead of playing with pte bits directly; this will cause cacheability to
be restored eventually; makes the zaurus textmode console memory cached again
after exiting from X.
ok drahn@
Diffstat (limited to 'sys/arch')
| -rw-r--r-- | sys/arch/arm/arm/bus_dma.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/sys/arch/arm/arm/bus_dma.c b/sys/arch/arm/arm/bus_dma.c index 28a47e7579c..6c367ebc63d 100644 --- a/sys/arch/arm/arm/bus_dma.c +++ b/sys/arch/arm/arm/bus_dma.c @@ -1,4 +1,4 @@ -/* $OpenBSD: bus_dma.c,v 1.19 2010/12/26 15:40:59 miod Exp $ */ +/* $OpenBSD: bus_dma.c,v 1.20 2011/01/04 21:12:55 miod Exp $ */ /* $NetBSD: bus_dma.c,v 1.38 2003/10/30 08:44:13 scw Exp $ */ /*- @@ -686,7 +686,9 @@ _bus_dmamem_map(bus_dma_tag_t t, bus_dma_segment_t *segs, int nsegs, size_t ssize; bus_addr_t addr; int curseg, error; - pt_entry_t *ptep/*, pte*/; +#ifdef DEBUG_DMA + pt_entry_t *ptep; +#endif #ifdef DEBUG_DMA printf("dmamem_map: t=%p segs=%p nsegs=%x size=%lx flags=%x\n", t, @@ -735,9 +737,7 @@ _bus_dmamem_map(bus_dma_tag_t t, bus_dma_segment_t *segs, int nsegs, if (flags & BUS_DMA_COHERENT) { cpu_dcache_wbinv_range(va, PAGE_SIZE); cpu_drain_writebuf(); - ptep = vtopte(va); - *ptep &= ~L2_S_CACHE_MASK; - PTE_SYNC(ptep); + pmap_uncache_page(va, addr); tlb_flush(); } #ifdef DEBUG_DMA |