diff options
| -rw-r--r-- | drivers/dma/Kconfig | 7 | ||||
| -rw-r--r-- | drivers/dma/dmaengine.c | 4 | ||||
| -rw-r--r-- | include/linux/dmaengine.h | 8 |
3 files changed, 11 insertions, 8 deletions
diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig index ab28f6093414..79d1542f31c0 100644 --- a/drivers/dma/Kconfig +++ b/drivers/dma/Kconfig @@ -46,7 +46,7 @@ config INTEL_MID_DMAC If unsure, say N. -config ASYNC_TX_DISABLE_CHANNEL_SWITCH +config ASYNC_TX_ENABLE_CHANNEL_SWITCH bool config AMBA_PL08X @@ -62,7 +62,6 @@ config INTEL_IOATDMA depends on PCI && X86 select DMA_ENGINE select DCA - select ASYNC_TX_DISABLE_CHANNEL_SWITCH select ASYNC_TX_DISABLE_PQ_VAL_DMA select ASYNC_TX_DISABLE_XOR_VAL_DMA help @@ -77,6 +76,7 @@ config INTEL_IOP_ADMA tristate "Intel IOP ADMA support" depends on ARCH_IOP32X || ARCH_IOP33X || ARCH_IOP13XX select DMA_ENGINE + select ASYNC_TX_ENABLE_CHANNEL_SWITCH help Enable support for the Intel(R) IOP Series RAID engines. @@ -101,6 +101,7 @@ config FSL_DMA tristate "Freescale Elo and Elo Plus DMA support" depends on FSL_SOC select DMA_ENGINE + select ASYNC_TX_ENABLE_CHANNEL_SWITCH ---help--- Enable support for the Freescale Elo and Elo Plus DMA controllers. The Elo is the DMA controller on some 82xx and 83xx parts, and the @@ -117,6 +118,7 @@ config MV_XOR bool "Marvell XOR engine support" depends on PLAT_ORION select DMA_ENGINE + select ASYNC_TX_ENABLE_CHANNEL_SWITCH ---help--- Enable support for the Marvell XOR engine. @@ -174,6 +176,7 @@ config AMCC_PPC440SPE_ADMA depends on 440SPe || 440SP select DMA_ENGINE select ARCH_HAS_ASYNC_TX_FIND_CHANNEL + select ASYNC_TX_ENABLE_CHANNEL_SWITCH help Enable support for the AMCC PPC440SPe RAID engines. diff --git a/drivers/dma/dmaengine.c b/drivers/dma/dmaengine.c index 235153cd7ac5..8bcb15fb959d 100644 --- a/drivers/dma/dmaengine.c +++ b/drivers/dma/dmaengine.c @@ -706,7 +706,7 @@ int dma_async_device_register(struct dma_device *device) BUG_ON(!device->dev); /* note: this only matters in the - * CONFIG_ASYNC_TX_DISABLE_CHANNEL_SWITCH=y case + * CONFIG_ASYNC_TX_ENABLE_CHANNEL_SWITCH=n case */ if (device_has_all_tx_types(device)) dma_cap_set(DMA_ASYNC_TX, device->cap_mask); @@ -980,7 +980,7 @@ void dma_async_tx_descriptor_init(struct dma_async_tx_descriptor *tx, struct dma_chan *chan) { tx->chan = chan; - #ifndef CONFIG_ASYNC_TX_DISABLE_CHANNEL_SWITCH + #ifdef CONFIG_ASYNC_TX_ENABLE_CHANNEL_SWITCH spin_lock_init(&tx->lock); #endif } diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h index 3934ebdd85c2..9d8688b92d8b 100644 --- a/include/linux/dmaengine.h +++ b/include/linux/dmaengine.h @@ -321,14 +321,14 @@ struct dma_async_tx_descriptor { dma_cookie_t (*tx_submit)(struct dma_async_tx_descriptor *tx); dma_async_tx_callback callback; void *callback_param; -#ifndef CONFIG_ASYNC_TX_DISABLE_CHANNEL_SWITCH +#ifdef CONFIG_ASYNC_TX_ENABLE_CHANNEL_SWITCH struct dma_async_tx_descriptor *next; struct dma_async_tx_descriptor *parent; spinlock_t lock; #endif }; -#ifdef CONFIG_ASYNC_TX_DISABLE_CHANNEL_SWITCH +#ifndef CONFIG_ASYNC_TX_ENABLE_CHANNEL_SWITCH static inline void txd_lock(struct dma_async_tx_descriptor *txd) { } @@ -656,11 +656,11 @@ static inline void net_dmaengine_put(void) #ifdef CONFIG_ASYNC_TX_DMA #define async_dmaengine_get() dmaengine_get() #define async_dmaengine_put() dmaengine_put() -#ifdef CONFIG_ASYNC_TX_DISABLE_CHANNEL_SWITCH +#ifndef CONFIG_ASYNC_TX_ENABLE_CHANNEL_SWITCH #define async_dma_find_channel(type) dma_find_channel(DMA_ASYNC_TX) #else #define async_dma_find_channel(type) dma_find_channel(type) -#endif /* CONFIG_ASYNC_TX_DISABLE_CHANNEL_SWITCH */ +#endif /* CONFIG_ASYNC_TX_ENABLE_CHANNEL_SWITCH */ #else static inline void async_dmaengine_get(void) { |