diff options
| author | Suren A. Chilingaryan <csa@suren.me> | 2015-05-05 23:13:45 +0200 |
|---|---|---|
| committer | Suren A. Chilingaryan <csa@suren.me> | 2015-05-05 23:13:45 +0200 |
| commit | 9ccacea308f336d10c8a94d393b261539a6970bf (patch) | |
| tree | b7bb277bdbedcc58f3128993dcc4cadd129b7e56 /dma/ipe_private.h | |
| parent | c39ac7a604d9f01f602f88f5770b5832e79fcdde (diff) | |
| download | pcitool-9ccacea308f336d10c8a94d393b261539a6970bf.tar.gz pcitool-9ccacea308f336d10c8a94d393b261539a6970bf.tar.bz2 pcitool-9ccacea308f336d10c8a94d393b261539a6970bf.tar.xz pcitool-9ccacea308f336d10c8a94d393b261539a6970bf.zip | |
Support gen3 DMA engine and provide work-arround for hardware mishandling last_descriptor_read register
Diffstat (limited to 'dma/ipe_private.h')
| -rw-r--r-- | dma/ipe_private.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/dma/ipe_private.h b/dma/ipe_private.h index f6aa2f7..82ea73a 100644 --- a/dma/ipe_private.h +++ b/dma/ipe_private.h @@ -3,6 +3,7 @@ #include "dma.h" +#define IPEDMA_64BIT_MODE 1 /**< 64-bit mode addressing is required to support PCIe gen3 */ #define IPEDMA_CORES 1 #define IPEDMA_TLP_SIZE 32 #define IPEDMA_PAGE_SIZE 4096 @@ -11,6 +12,8 @@ #define IPEDMA_DESCRIPTOR_SIZE 128 #define IPEDMA_DESCRIPTOR_ALIGNMENT 64 +#define IPEDMA_BUG_LAST_READ /**< We should forbid writting the second last available DMA buffer (the last is forbidden by design) */ + //#define IPEDMA_BUG_DMARD /**< No register read during DMA transfer */ //#define IPEDMA_DETECT_PACKETS /**< Using empty_deceted flag */ #define IPEDMA_SUPPORT_EMPTY_DETECTED /**< Avoid waiting for data when empty_detected flag is set in hardware */ |