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authorBecky Bruce <becky.bruce@freescale.com>2008-11-20 06:49:16 +0000
committerPaul Mackerras <paulus@samba.org>2008-12-03 20:46:36 +1100
commit15e09c0ecaab4a1b4a7ed69db536c38948b92279 (patch)
tree9cf8f2cbfe002e220db4d001d08fbc50bfaf4433 /arch/powerpc/Kconfig
parentc4d04be11f99cc9ce4e3801a5da235727db704a9 (diff)
powerpc: Add sync_*_for_* to dma_ops
We need to swap these out once we start using swiotlb, so add them to dma_ops. Create CONFIG_PPC_NEED_DMA_SYNC_OPS Kconfig option; this is currently enabled automatically if we're CONFIG_NOT_COHERENT_CACHE. In the future, this will also be enabled for builds that need swiotlb. If PPC_NEED_DMA_SYNC_OPS is not defined, the dma_sync_*_for_* ops compile to nothing. Otherwise, they access the dma_ops pointers for the sync ops. This patch also changes dma_sync_single_range_* to actually sync the range - previously it was using a generous dma_sync_single. dma_sync_single_* is now implemented as a dma_sync_single_range with an offset of 0. Signed-off-by: Becky Bruce <becky.bruce@freescale.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/Kconfig')
-rw-r--r--arch/powerpc/Kconfig4
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 525c13a4de93..be4f99b7cbbb 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -285,6 +285,10 @@ config IOMMU_VMERGE
config IOMMU_HELPER
def_bool PPC64
+config PPC_NEED_DMA_SYNC_OPS
+ def_bool y
+ depends on NOT_COHERENT_CACHE
+
config HOTPLUG_CPU
bool "Support for enabling/disabling CPUs"
depends on SMP && HOTPLUG && EXPERIMENTAL && (PPC_PSERIES || PPC_PMAC)