DMA_BUF_END_CPU_ACCE(9) Device drivers infrastructure DMA_BUF_END_CPU_ACCE(9)
NAME
dma_buf_end_cpu_access - Must be called after accessing a dma_buf from the cpu in the kernel context. Calls end_cpu_access to allow
exporter-specific actions. Coherency is only guaranteed in the specified range for the specified access direction.
SYNOPSIS
void dma_buf_end_cpu_access(struct dma_buf * dmabuf, size_t start, size_t len, enum dma_data_direction direction);
ARGUMENTS
dmabuf
[in] buffer to complete cpu access for.
start
[in] start of range for cpu access.
len
[in] length of range for cpu access.
direction
[in] length of range for cpu access.
DESCRIPTION
This call must always succeed.
COPYRIGHT
Kernel Hackers Manual 3.10 June 2014 DMA_BUF_END_CPU_ACCE(9)
