diff options
Diffstat (limited to 'drivers/dma/mv_xor.h')
| -rw-r--r-- | drivers/dma/mv_xor.h | 36 |
1 files changed, 13 insertions, 23 deletions
diff --git a/drivers/dma/mv_xor.h b/drivers/dma/mv_xor.h index a5b422f5a8ab..c632a4761fcf 100644 --- a/drivers/dma/mv_xor.h +++ b/drivers/dma/mv_xor.h @@ -24,8 +24,10 @@ #include <linux/interrupt.h> #define USE_TIMER +#define MV_XOR_POOL_SIZE PAGE_SIZE #define MV_XOR_SLOT_SIZE 64 #define MV_XOR_THRESHOLD 1 +#define MV_XOR_MAX_CHANNELS 2 #define XOR_OPERATION_MODE_XOR 0 #define XOR_OPERATION_MODE_MEMCPY 2 @@ -51,29 +53,13 @@ #define WINDOW_SIZE(w) (0x270 + ((w) << 2)) #define WINDOW_REMAP_HIGH(w) (0x290 + ((w) << 2)) #define WINDOW_BAR_ENABLE(chan) (0x240 + ((chan) << 2)) +#define WINDOW_OVERRIDE_CTRL(chan) (0x2A0 + ((chan) << 2)) -struct mv_xor_shared_private { - void __iomem *xor_base; - void __iomem *xor_high_base; - struct clk *clk; -}; - - -/** - * struct mv_xor_device - internal representation of a XOR device - * @pdev: Platform device - * @id: HW XOR Device selector - * @dma_desc_pool: base of DMA descriptor region (DMA address) - * @dma_desc_pool_virt: base of DMA descriptor region (CPU address) - * @common: embedded struct dma_device - */ struct mv_xor_device { - struct platform_device *pdev; - int id; - dma_addr_t dma_desc_pool; - void *dma_desc_pool_virt; - struct dma_device common; - struct mv_xor_shared_private *shared; + void __iomem *xor_base; + void __iomem *xor_high_base; + struct clk *clk; + struct mv_xor_chan *channels[MV_XOR_MAX_CHANNELS]; }; /** @@ -96,11 +82,15 @@ struct mv_xor_chan { spinlock_t lock; /* protects the descriptor slot pool */ void __iomem *mmr_base; unsigned int idx; + int irq; enum dma_transaction_type current_type; struct list_head chain; struct list_head completed_slots; - struct mv_xor_device *device; - struct dma_chan common; + dma_addr_t dma_desc_pool; + void *dma_desc_pool_virt; + size_t pool_size; + struct dma_device dmadev; + struct dma_chan dmachan; struct mv_xor_desc_slot *last_used; struct list_head all_slots; int slots_allocated; |