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>
diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig
index 446687c..132a4fd 100644
--- a/drivers/dma/Kconfig
+++ b/drivers/dma/Kconfig
@@ -62,6 +62,7 @@
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 @@
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 @@
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 @@
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 ea806bd..b601024 100644
--- a/drivers/dma/dmaengine.c
+++ b/drivers/dma/dmaengine.c
@@ -912,7 +912,7 @@
#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),