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Defined in 1 files as a function:

Referenced in 14 files:

Smatch caller information:

drivers/media/platform/renesas/rcar_drif.c rcar_drif_qbuf() -> dmaengine_prep_dma_cyclic()

Type Parameter Key Value
PARAM_VALUE 2 buf_len 0-u32max
PARAM_VALUE 4 dir 2
PARAM_VALUE 5 flags 3
RX_PATH
TASK_NOT_RUNNING
LOCK2 &sdr->v4l2_mutex
HALF_LOCKED2 &dmxdev->mutex
HALF_LOCKED2 vq->lock
TYPE_LOCK (struct rcar_drif_sdr)->v4l2_mutex

drivers/iio/adc/ti_am335x_adc.c tiadc_start_dma() -> dmaengine_prep_dma_cyclic()

Type Parameter Key Value
PARAM_VALUE 0 chan 4096-ptr_max
PARAM_VALUE 0 chan->device 4096-ptr_max
PARAM_VALUE 2 buf_len 1026-2048
PARAM_VALUE 3 period_len 513-1024
PARAM_VALUE 4 dir 2
PARAM_VALUE 5 flags 1
CAPPED_DATA 2 buf_len 1
CAPPED_DATA 3 period_len 1
RX_PATH
TASK_NOT_RUNNING
LOCK2 _T->lock
HALF_LOCKED2 &of->mutex

drivers/iio/adc/stm32-dfsdm-adc.c stm32_dfsdm_adc_dma_start() -> dmaengine_prep_dma_cyclic()

Type Parameter Key Value
PARAM_VALUE 0 chan 4096-ptr_max
PARAM_VALUE 0 chan->device 4096-ptr_max
PARAM_VALUE 0 chan->device->device_config 1-u64max
PARAM_VALUE 3 period_len 0-u32max
PARAM_VALUE 4 dir 2
PARAM_VALUE 5 flags 1
RX_PATH
TASK_NOT_RUNNING
UNITS 2 buf_len unit_byte
HALF_LOCKED2 _T->lock

drivers/spi/spi-bcm2835.c bcm2835_dma_init() -> dmaengine_prep_dma_cyclic()

Type Parameter Key Value
PARAM_VALUE 0 chan 4096-ptr_max
PARAM_VALUE 0 chan->client_count 1-s32max
PARAM_VALUE 0 chan->device 4096-ptr_max
PARAM_VALUE 0 chan->device->dev->dma_io_tlb_lock.rlock.dep_map->name 0-255
PARAM_VALUE 0 chan->device->dev->dma_io_tlb_pools.next 4096-ptr_max
PARAM_VALUE 0 chan->device->dev->dma_io_tlb_pools.next->prev 4096-ptr_max
PARAM_VALUE 0 chan->device->dev->dma_io_tlb_pools.next->prev->prev 4096-ptr_max
PARAM_VALUE 0 chan->device->dev->dma_uses_io_tlb 1
PARAM_VALUE 0 chan->device->dev->iommu->attach_deferred 0-1
PARAM_VALUE 0 chan->device->dev->iommu->pci_32bit_workaround 0-1
PARAM_VALUE 0 chan->device->device_config 1-u64max
PARAM_VALUE 0 chan->device->owner->state 0-1,3-u32max
PARAM_VALUE 0 chan->device->ref.refcount.refs.counter (-1073741824),0-s32max
PARAM_VALUE 1 buf_addr 0-18446744073709551614
PARAM_VALUE 2 buf_len 4
PARAM_VALUE 3 period_len 0
PARAM_VALUE 4 dir 1
PARAM_VALUE 5 flags 0
CAPPED_DATA 0 chan->dbg_client_name 1
CAPPED_DATA 0 chan->device->dev 1
CAPPED_DATA 0 chan->name 1
DATA_SOURCE 0 chan r dma_request_chan
DATA_SOURCE 1 buf_addr r dma_map_page_attrs
RX_PATH
TASK_NOT_RUNNING
UNITS 2 buf_len unit_byte

drivers/spi/spi-bcm2835.c bcm2835_spi_setup_dma() -> dmaengine_prep_dma_cyclic()

Type Parameter Key Value
PARAM_VALUE 0 chan 4096-ptr_max
PARAM_VALUE 0 chan->device 4096-ptr_max
PARAM_VALUE 0 chan->device->dev->dma_io_tlb_lock.rlock.dep_map->name 0-255
PARAM_VALUE 0 chan->device->dev->dma_io_tlb_pools.next 4096-ptr_max
PARAM_VALUE 0 chan->device->dev->dma_io_tlb_pools.next->prev 4096-ptr_max
PARAM_VALUE 0 chan->device->dev->dma_io_tlb_pools.next->prev->prev 4096-ptr_max
PARAM_VALUE 0 chan->device->dev->dma_uses_io_tlb 1
PARAM_VALUE 0 chan->device->dev->iommu->attach_deferred 0-1
PARAM_VALUE 0 chan->device->dev->iommu->pci_32bit_workaround 0-1
PARAM_VALUE 1 buf_addr 0-18446744073709551614
PARAM_VALUE 2 buf_len 4
PARAM_VALUE 3 period_len 0
PARAM_VALUE 4 dir 1
PARAM_VALUE 5 flags 0
DATA_SOURCE 1 buf_addr r dma_map_single_attrs
RX_PATH
TASK_NOT_RUNNING
UNITS 2 buf_len unit_byte
LOCK2 &spi->controller->io_mutex
HALF_LOCKED2 &spi->controller->bus_lock_mutex
TYPE_LOCK (struct spi_controller)->io_mutex

drivers/tty/serial/stm32-usart.c stm32_usart_rx_dma_start_or_resume() -> dmaengine_prep_dma_cyclic()

Type Parameter Key Value
PARAM_VALUE 0 chan 0,4096-u64max
PARAM_VALUE 2 buf_len 4096
PARAM_VALUE 3 period_len 2048
PARAM_VALUE 4 dir 2
PARAM_VALUE 5 flags 1
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2 &port->lock
HALF_LOCKED2 _T->lock
HALF_LOCKED2 flags

sound/soc/renesas/fsi.c fsi_dma_transfer() -> dmaengine_prep_dma_cyclic()

Type Parameter Key Value
PARAM_VALUE 4 dir 1-2
PARAM_VALUE 5 flags 3
FUZZY_MAX 4 dir 2
HARD_MAX 4 dir 2
RX_PATH
TASK_NOT_RUNNING
UNITS 1 buf_addr unit_byte

sound/soc/fsl/fsl_asrc_dma.c fsl_asrc_dma_prepare_and_submit() -> dmaengine_prep_dma_cyclic()

Type Parameter Key Value
PARAM_VALUE 4 dir 1-2
PARAM_VALUE 5 flags 2-3
FUZZY_MAX 4 dir 2
FUZZY_MAX 5 flags 2
BIT_INFO 5 flags 0x2,0x3
BIT_INFO 5 flags 0x2,0x3
HARD_MAX 4 dir 2
UNITS 1 buf_addr unit_byte

sound/soc/fsl/fsl_asrc_dma.c fsl_asrc_dma_prepare_and_submit() -> dmaengine_prep_dma_cyclic()

Type Parameter Key Value
PARAM_VALUE 1 buf_addr u16max
PARAM_VALUE 2 buf_len 64
PARAM_VALUE 3 period_len 64
PARAM_VALUE 4 dir 3
PARAM_VALUE 5 flags 0

drivers/tty/serial/imx.c imx_uart_start_rx_dma() -> dmaengine_prep_dma_cyclic()

Type Parameter Key Value
PARAM_VALUE 0 chan 4096-ptr_max
PARAM_VALUE 0 chan->client_count 1-s32max
PARAM_VALUE 0 chan->device 4096-ptr_max
PARAM_VALUE 2 buf_len 0-u32max
PARAM_VALUE 3 period_len 0-u32max
PARAM_VALUE 4 dir 2
PARAM_VALUE 5 flags 1
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
UNITS 1 buf_addr unit_byte
UNITS 2 buf_len unit_byte
LOCK2 &sport->port.lock
LOCK2 _T->lock
LOCK2 flags
HALF_LOCKED2 &port->lock
TYPE_LOCK (struct uart_port)->lock

drivers/iio/adc/at91-sama5d2_adc.c at91_adc_dma_start() -> dmaengine_prep_dma_cyclic()

Type Parameter Key Value
PARAM_VALUE 0 chan 1-u64max
PARAM_VALUE 2 buf_len 0-s32max,18446744071562067968-u64max
PARAM_VALUE 3 period_len 0-s32max,18446744071562067968-u64max
PARAM_VALUE 4 dir 2
PARAM_VALUE 5 flags 1
RX_PATH
TASK_NOT_RUNNING
UNITS 2 buf_len unit_byte
HALF_LOCKED2 _T->lock

sound/core/pcm_dmaengine.c dmaengine_pcm_prepare_and_submit() -> dmaengine_prep_dma_cyclic()

Type Parameter Key Value
PARAM_VALUE 4 dir 1-2
PARAM_VALUE 5 flags 2-3
DATA_SOURCE 4 dir r snd_pcm_substream_to_dma_direction
FUZZY_MAX 5 flags 2
BIT_INFO 5 flags 0x2,0x3
BIT_INFO 5 flags 0x2,0x3
UNITS 1 buf_addr unit_byte
HALF_LOCKED2 &priv->lock
HALF_LOCKED2 irq

drivers/tty/serial/fsl_lpuart.c lpuart_start_rx_dma() -> dmaengine_prep_dma_cyclic()

Type Parameter Key Value
PARAM_VALUE 0 chan 4096-ptr_max
PARAM_VALUE 0 chan->device 4096-ptr_max
PARAM_VALUE 0 chan->device->dev 4096-ptr_max
PARAM_VALUE 0 chan->device->dev->dma_io_tlb_lock.rlock.dep_map->name 0-255
PARAM_VALUE 0 chan->device->dev->dma_io_tlb_pools.next->prev 4096-ptr_max
PARAM_VALUE 0 chan->device->dev->dma_io_tlb_pools.next->prev->prev 4096-ptr_max
PARAM_VALUE 0 chan->device->dev->dma_mask 4096-ptr_max
PARAM_VALUE 0 chan->device->dev->iommu->attach_deferred 0-1
PARAM_VALUE 0 chan->device->dev->iommu->pci_32bit_workaround 0-1
PARAM_VALUE 0 chan->device->device_config 1-u64max
PARAM_VALUE 3 period_len 0-u32max
PARAM_VALUE 4 dir 2
PARAM_VALUE 5 flags 1
CAPPED_DATA 0 chan->device->dev 1
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
UNITS 1 buf_addr unit_byte
LOCK2 flags
HALF_LOCKED2 &port->lock
HALF_LOCKED2 &sport->port.lock
HALF_LOCKED2 _T->lock
TYPE_LOCK (struct uart_port)->lock

drivers/iio/adc/nxp-sar-adc.c nxp_sar_adc_start_cyclic_dma() -> dmaengine_prep_dma_cyclic()

Type Parameter Key Value
PARAM_VALUE 0 chan 4096-ptr_max
PARAM_VALUE 0 chan->device 4096-ptr_max
PARAM_VALUE 0 chan->device->device_config 1-u64max
PARAM_VALUE 2 buf_len 16384
PARAM_VALUE 3 period_len 8192
PARAM_VALUE 4 dir 2
PARAM_VALUE 5 flags 1
RX_PATH
TASK_NOT_RUNNING
LOCK2 _T->lock
HALF_LOCKED2 &of->mutex

drivers/iio/adc/stm32-adc.c stm32_adc_dma_start() -> dmaengine_prep_dma_cyclic()

Type Parameter Key Value
PARAM_VALUE 0 chan 1-u64max
PARAM_VALUE 3 period_len 0-u32max
PARAM_VALUE 4 dir 2
PARAM_VALUE 5 flags 1
RX_PATH
TASK_NOT_RUNNING
UNITS 2 buf_len unit_byte
HALF_LOCKED2 _T->lock

drivers/tty/serial/atmel_serial.c atmel_prepare_rx_dma() -> dmaengine_prep_dma_cyclic()

Type Parameter Key Value
PARAM_VALUE 0 chan 4096-ptr_max
PARAM_VALUE 0 chan->client_count 1-s32max
PARAM_VALUE 0 chan->dev 4096-ptr_max
PARAM_VALUE 0 chan->device 4096-ptr_max
PARAM_VALUE 0 chan->device->device_config 1-u64max
PARAM_VALUE 2 buf_len 4096
PARAM_VALUE 3 period_len 2048
PARAM_VALUE 4 dir 2
PARAM_VALUE 5 flags 1
DATA_SOURCE 1 buf_addr r dma_map_single_attrs
RX_PATH
TASK_NOT_RUNNING
LOCK2 _T->lock
HALF_LOCKED2 &port->lock