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| author | Dan Williams <dan.j.williams@intel.com> | 2013-12-09 10:33:16 -0800 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2013-12-12 22:43:42 -0800 |
| commit | 3cc377b9ae4bd3133bf8ba388d2b2b66b2b973c1 (patch) | |
| tree | 3897c44ab6a8cfc9b37f3a11365a2afc0117e3a1 | |
| parent | 8e5ee258d98a6643227d958361aec2a62559b804 (diff) | |
| download | linux-stable-3cc377b9ae4bd3133bf8ba388d2b2b66b2b973c1.tar.gz linux-stable-3cc377b9ae4bd3133bf8ba388d2b2b66b2b973c1.tar.bz2 linux-stable-3cc377b9ae4bd3133bf8ba388d2b2b66b2b973c1.zip | |
dmaengine: fix enable for high order unmap pools
The higher order mempools support raid operations, and we want to
disable them when raid support is not enabled. Making them conditional
on ASYNC_TX_DMA is not sufficient as other users (specifically dmatest)
will also issue raid operations. Make raid drivers explicitly request
that the core carry the higher order pools.
Reported-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Tested-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
| -rw-r--r-- | drivers/dma/Kconfig | 6 | ||||
| -rw-r--r-- | drivers/dma/dmaengine.c | 2 |
2 files changed, 7 insertions, 1 deletions
diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig index 446687cc2334..132a4fd375b2 100644 --- a/drivers/dma/Kconfig +++ b/drivers/dma/Kconfig @@ -62,6 +62,7 @@ config INTEL_IOATDMA tristate "Intel I/OAT DMA support" depends on PCI && X86 select DMA_ENGINE + select DMA_ENGINE_RAID select DCA help Enable support for the Intel(R) I/OAT DMA engine present @@ -112,6 +113,7 @@ config MV_XOR bool "Marvell XOR engine support" depends on PLAT_ORION select DMA_ENGINE + select DMA_ENGINE_RAID select ASYNC_TX_ENABLE_CHANNEL_SWITCH ---help--- Enable support for the Marvell XOR engine. @@ -187,6 +189,7 @@ config AMCC_PPC440SPE_ADMA tristate "AMCC PPC440SPe ADMA support" depends on 440SPe || 440SP select DMA_ENGINE + select DMA_ENGINE_RAID select ARCH_HAS_ASYNC_TX_FIND_CHANNEL select ASYNC_TX_ENABLE_CHANNEL_SWITCH help @@ -377,4 +380,7 @@ config DMATEST Simple DMA test client. Say N unless you're debugging a DMA Device driver. +config DMA_ENGINE_RAID + bool + endif diff --git a/drivers/dma/dmaengine.c b/drivers/dma/dmaengine.c index ea806bdc12ef..b601024f518c 100644 --- a/drivers/dma/dmaengine.c +++ b/drivers/dma/dmaengine.c @@ -912,7 +912,7 @@ struct dmaengine_unmap_pool { #define __UNMAP_POOL(x) { .size = x, .name = "dmaengine-unmap-" __stringify(x) } static struct dmaengine_unmap_pool unmap_pool[] = { __UNMAP_POOL(2), - #if IS_ENABLED(CONFIG_ASYNC_TX_DMA) + #if IS_ENABLED(CONFIG_DMA_ENGINE_RAID) __UNMAP_POOL(16), __UNMAP_POOL(128), __UNMAP_POOL(256), |