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| author | Suren A. Chilingaryan <csa@suren.me> | 2015-06-12 17:24:18 +0200 |
|---|---|---|
| committer | Suren A. Chilingaryan <csa@suren.me> | 2015-06-12 17:24:18 +0200 |
| commit | 36385f1e83c7f6dd45954033b91d1871e62005c4 (patch) | |
| tree | 7cff125d99c62704b6f9dda202928827a37871c0 /dma/ipe_private.h | |
| parent | 860ca5277c37cc93d8e44e5b7a7757b930b83603 (diff) | |
| download | pcitool-36385f1e83c7f6dd45954033b91d1871e62005c4.tar.gz pcitool-36385f1e83c7f6dd45954033b91d1871e62005c4.tar.bz2 pcitool-36385f1e83c7f6dd45954033b91d1871e62005c4.tar.xz pcitool-36385f1e83c7f6dd45954033b91d1871e62005c4.zip | |
Support streaming mode in IPEDMA
Diffstat (limited to 'dma/ipe_private.h')
| -rw-r--r-- | dma/ipe_private.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/dma/ipe_private.h b/dma/ipe_private.h index 5cfb10b..249286d 100644 --- a/dma/ipe_private.h +++ b/dma/ipe_private.h @@ -8,6 +8,8 @@ #define IPEDMA_MAX_TLP_SIZE 256 /**< Defines maximum TLP in bytes supported by device */ //#define IPEDMA_TLP_SIZE 128 /**< If set, enforces the specified TLP size */ +#define IPEDMA_STREAMING_MODE /**< Enables streaming DMA operation mode instead of ring-buffer, the page is written once and forgotten and need to be pushed in queue again */ +#define IPEDMA_STREAMING_CHECKS /**< Enables status checks in streaming mode (it will cause performance penalty) */ #define IPEDMA_PAGE_SIZE 4096 #define IPEDMA_DMA_PAGES 1024 /**< number of DMA pages in the ring buffer to allocate */ #define IPEDMA_DMA_PROGRESS_THRESHOLD 1 /**< how many pages the DMA engine should fill before reporting progress */ @@ -31,9 +33,11 @@ #define IPEDMA_REG_TLP_COUNT 0x10 #define IPEDMA_REG_PAGE_ADDR 0x50 #define IPEDMA_REG_UPDATE_ADDR 0x54 -#define IPEDMA_REG_LAST_READ 0x58 +#define IPEDMA_REG_LAST_READ 0x58 /**< In streaming mode, we can use it freely to track current status */ #define IPEDMA_REG_PAGE_COUNT 0x5C #define IPEDMA_REG_UPDATE_THRESHOLD 0x60 +#define IPEDMA_REG_STREAMING_STATUS 0x68 + #define WR(addr, value) { *(uint32_t*)(ctx->base_addr + addr) = value; } #define RD(addr, value) { value = *(uint32_t*)(ctx->base_addr + addr); } |