diff options
| author | Ilya Novikov <i.m.novikov@yadro.com> | 2022-04-13 14:37:33 +0300 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2022-04-20 16:38:19 +0530 |
| commit | d965068259d13fde49487b45064106d3d0c57a74 (patch) | |
| tree | d82a6029e88858e5092512fefb5abc405828f19c /drivers/dma/ptdma/ptdma.h | |
| parent | 578245307f4afefd8da2ca66979d40b9ef517d67 (diff) | |
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>
Diffstat (limited to 'drivers/dma/ptdma/ptdma.h')
| -rw-r--r-- | drivers/dma/ptdma/ptdma.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/dma/ptdma/ptdma.h b/drivers/dma/ptdma/ptdma.h index afbf192c9230..d093c43b7d13 100644 --- a/drivers/dma/ptdma/ptdma.h +++ b/drivers/dma/ptdma/ptdma.h @@ -206,6 +206,9 @@ struct pt_cmd_queue { unsigned int active; unsigned int suspended; + /* Interrupt flag */ + bool int_en; + /* Register addresses for queue */ void __iomem *reg_control; u32 qcontrol; /* Cached control register */ @@ -318,7 +321,17 @@ void pt_core_destroy(struct pt_device *pt); int pt_core_perform_passthru(struct pt_cmd_queue *cmd_q, struct pt_passthru_engine *pt_engine); +void pt_check_status_trans(struct pt_device *pt, struct pt_cmd_queue *cmd_q); void pt_start_queue(struct pt_cmd_queue *cmd_q); void pt_stop_queue(struct pt_cmd_queue *cmd_q); +static inline void pt_core_disable_queue_interrupts(struct pt_device *pt) +{ + iowrite32(0, pt->cmd_q.reg_control + 0x000C); +} + +static inline void pt_core_enable_queue_interrupts(struct pt_device *pt) +{ + iowrite32(SUPPORTED_INTERRUPTS, pt->cmd_q.reg_control + 0x000C); +} #endif |