Vinod Koul
e235fe3bcf
dmaengine: ptdma: statify pt_tx_status
...
LKP bot reports a new warning:
Warning:
drivers/dma/ptdma/ptdma-dmaengine.c:262:1: warning: no previous prototype for 'pt_tx_status' [-Wmissing-prototypes]
pt_tx_status() should be static, so declare as such.
Reported-by: kernel test robot <lkp@intel.com >
Fixes: d965068259https://lore.kernel.org/r/20220421052407.745637-1-vkoul@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org >
2022-04-22 11:29:13 +05:30
Ilya Novikov
d965068259
dmaengine: PTDMA: support polled mode
...
If the DMA_PREP_INTERRUPT flag is not provided, run in polled mode,
which significantly improves IOPS: more than twice on chunks < 4K.
Signed-off-by: Ilya Novikov <i.m.novikov@yadro.com >
Link: https://lore.kernel.org/r/20220413113733.59041-1-i.m.novikov@yadro.com
Signed-off-by: Vinod Koul <vkoul@kernel.org >
2022-04-20 16:38:19 +05:30
Sanjay R Mehta
b6ccf01975
dmaengine: ptdma: handle the cases based on DMA is complete
...
There is a need to segregate the cases when DMA is complete or not.
In case if DMA is already complete there is no need to handle it
again and gracefully exit from the function.
Signed-off-by: Sanjay R Mehta <sanju.mehta@amd.com >
Link: https://lore.kernel.org/r/1643814880-3882-3-git-send-email-Sanju.Mehta@amd.com
Signed-off-by: Vinod Koul <vkoul@kernel.org >
2022-02-15 10:54:54 +05:30
Sanjay R Mehta
6fa7e0e836
dmaengine: ptdma: fix concurrency issue with multiple dma transfer
...
The command should be submitted only if the engine is idle,
for this, the next available descriptor is checked and set the flag
to false in case the descriptor is non-empty.
Signed-off-by: Sanjay R Mehta <sanju.mehta@amd.com >
Link: https://lore.kernel.org/r/1643814880-3882-2-git-send-email-Sanju.Mehta@amd.com
Signed-off-by: Vinod Koul <vkoul@kernel.org >
2022-02-15 10:54:54 +05:30
Sanjay R Mehta
b0b4a6b105
dmaengine: ptdma: register PTDMA controller as a DMA resource
...
Register ptdma queue to Linux dmaengine framework as general-purpose
DMA channels.
Signed-off-by: Sanjay R Mehta <sanju.mehta@amd.com >
Link: https://lore.kernel.org/r/1629208559-51964-3-git-send-email-Sanju.Mehta@amd.com
Signed-off-by: Vinod Koul <vkoul@kernel.org >
2021-08-29 19:14:20 +05:30
