Defined in 2 files as a function:
- drivers/dma/mediatek/mtk-cqdma.c, line 168 (as a function)
- drivers/dma/mediatek/mtk-hsdma.c, line 268 (as a function)
Referenced in 2 files:
Smatch caller information:
drivers/dma/mediatek/mtk-cqdma.c mtk_cqdma_irq() -> mtk_dma_read()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | hsdma | 4096-ptr_max |
| PARAM_VALUE | 1 | reg | 0 |
| PREEMPT_ADD | <- disables preempt | ||
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| HALF_LOCKED2 | &desc->request_mutex | ||
| HALF_LOCKED2 | flags |
drivers/dma/mediatek/mtk-cqdma.c mtk_dma_rmw() -> mtk_dma_read()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 1 | reg | 0,4,8,12,20,28,32,36,96,100 |
| DATA_SOURCE | 0 | hsdma | $0 |
| DATA_SOURCE | 1 | reg | $1 |
| HARD_MAX | 1 | reg | 100 |
| PREEMPT_ADD | |||
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| HALF_LOCKED2 | flags | ||
| HALF_LOCKED2 | 0 | &hsdma->lock |
drivers/dma/mediatek/mtk-hsdma.c mtk_dma_rmw() -> mtk_dma_read()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 1 | reg | 516,520,552 |
| DATA_SOURCE | 0 | hsdma | $0 |
| DATA_SOURCE | 1 | reg | $1 |
| HARD_MAX | 1 | reg | 552 |
| RX_PATH | |||
| TASK_NOT_RUNNING |
drivers/dma/mediatek/mtk-hsdma.c mtk_hsdma_free_rooms_in_ring() -> mtk_dma_read()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | hsdma | 4096-ptr_max |
| PARAM_VALUE | 1 | reg | 544 |
| DATA_SOURCE | 0 | hsdma | $0 |
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| HALF_LOCKED2 | &desc->request_mutex | ||
| HALF_LOCKED2 | _T->lock | ||
| HALF_LOCKED2 | flags | ||
| HALF_LOCKED2 | irq |