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| author | Becky Bruce <becky.bruce@freescale.com> | 2008-11-20 06:49:16 +0000 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2008-12-03 20:46:36 +1100 |
| commit | 15e09c0ecaab4a1b4a7ed69db536c38948b92279 (patch) | |
| tree | 9cf8f2cbfe002e220db4d001d08fbc50bfaf4433 /arch/powerpc/Kconfig | |
| parent | c4d04be11f99cc9ce4e3801a5da235727db704a9 (diff) | |
| download | lwn-15e09c0ecaab4a1b4a7ed69db536c38948b92279.tar.gz lwn-15e09c0ecaab4a1b4a7ed69db536c38948b92279.zip | |
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/Kconfig | 4 |
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) |