diff options
| author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2015-09-08 01:01:14 -0300 |
|---|---|---|
| committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2015-09-08 01:01:14 -0300 |
| commit | e5fd91f1ef340da553f7a79da9540c3db711c937 (patch) | |
| tree | b11842027dc6641da63f4bcc524f8678263304a3 /drivers/dma/mv_xor.h | |
| parent | 2a9b0348e685a63d97486f6749622b61e9e3292f (diff) | |
Linux-libre 4.2-gnu
Diffstat (limited to 'drivers/dma/mv_xor.h')
| -rw-r--r-- | drivers/dma/mv_xor.h | 26 |
1 files changed, 14 insertions, 12 deletions
diff --git a/drivers/dma/mv_xor.h b/drivers/dma/mv_xor.h index 0e302b3a3..b7455b421 100644 --- a/drivers/dma/mv_xor.h +++ b/drivers/dma/mv_xor.h @@ -19,7 +19,7 @@ #include <linux/dmaengine.h> #include <linux/interrupt.h> -#define MV_XOR_POOL_SIZE PAGE_SIZE +#define MV_XOR_POOL_SIZE (MV_XOR_SLOT_SIZE * 3072) #define MV_XOR_SLOT_SIZE 64 #define MV_XOR_THRESHOLD 1 #define MV_XOR_MAX_CHANNELS 2 @@ -30,9 +30,14 @@ /* Values for the XOR_CONFIG register */ #define XOR_OPERATION_MODE_XOR 0 #define XOR_OPERATION_MODE_MEMCPY 2 +#define XOR_OPERATION_MODE_IN_DESC 7 #define XOR_DESCRIPTOR_SWAP BIT(14) #define XOR_DESC_SUCCESS 0x40000000 +#define XOR_DESC_OPERATION_XOR (0 << 24) +#define XOR_DESC_OPERATION_CRC32C (1 << 24) +#define XOR_DESC_OPERATION_MEMCPY (2 << 24) + #define XOR_DESC_DMA_OWNED BIT(31) #define XOR_DESC_EOD_INT_EN BIT(31) @@ -89,13 +94,14 @@ struct mv_xor_device { * @mmr_base: memory mapped register base * @idx: the index of the xor channel * @chain: device chain view of the descriptors + * @free_slots: free slots usable by the channel + * @allocated_slots: slots allocated by the driver * @completed_slots: slots completed by HW but still need to be acked * @device: parent device * @common: common dmaengine channel object members - * @last_used: place holder for allocation to continue from where it left off - * @all_slots: complete domain of slots usable by the channel * @slots_allocated: records the actual size of the descriptor slot pool * @irq_tasklet: bottom half where mv_xor_slot_cleanup runs + * @op_in_desc: new mode of driver, each op is writen to descriptor. */ struct mv_xor_chan { int pending; @@ -106,16 +112,17 @@ struct mv_xor_chan { int irq; enum dma_transaction_type current_type; struct list_head chain; + struct list_head free_slots; + struct list_head allocated_slots; struct list_head completed_slots; 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; struct tasklet_struct irq_tasklet; + int op_in_desc; char dummy_src[MV_XOR_MIN_BYTE_COUNT]; char dummy_dst[MV_XOR_MIN_BYTE_COUNT]; dma_addr_t dummy_src_addr, dummy_dst_addr; @@ -123,9 +130,7 @@ struct mv_xor_chan { /** * struct mv_xor_desc_slot - software descriptor - * @slot_node: node on the mv_xor_chan.all_slots list - * @chain_node: node on the mv_xor_chan.chain list - * @completed_node: node on the mv_xor_chan.completed_slots list + * @node: node on the mv_xor_chan lists * @hw_desc: virtual address of the hardware descriptor chain * @phys: hardware address of the hardware descriptor chain * @slot_used: slot in use or not @@ -134,12 +139,9 @@ struct mv_xor_chan { * @async_tx: support for the async_tx api */ struct mv_xor_desc_slot { - struct list_head slot_node; - struct list_head chain_node; - struct list_head completed_node; + struct list_head node; enum dma_transaction_type type; void *hw_desc; - u16 slot_used; u16 idx; struct dma_async_tx_descriptor async_tx; }; |