diff options
| author | Tiago Vignatti <tiago.vignatti@intel.com> | 2015-12-11 18:50:35 -0200 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2016-02-11 18:16:12 +0100 |
| commit | 35debab2d9690aa6c26528358e882168e90dcb2b (patch) | |
| tree | b590b7ab62d24c03eec2f0e9857bf45229248c98 /lib/ioctl_wrappers.h | |
| parent | 4edfa09ae4c184177389e339c57d090914936421 (diff) | |
lib: Add prime_sync_start and prime_sync_end helpers
This patch adds dma-buf mmap synchronization ioctls that can be used by tests
for cache coherency management e.g. when CPU and GPU domains are being accessed
through dma-buf at the same time.
v7: add sync invalid flags test.
Signed-off-by: Tiago Vignatti <tiago.vignatti@intel.com>
Reviewed-by: Stéphane Marchesin <marcheu@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Diffstat (limited to 'lib/ioctl_wrappers.h')
| -rw-r--r-- | lib/ioctl_wrappers.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/lib/ioctl_wrappers.h b/lib/ioctl_wrappers.h index 57e0a00b..200b2dab 100644 --- a/lib/ioctl_wrappers.h +++ b/lib/ioctl_wrappers.h @@ -153,6 +153,21 @@ void gem_require_caching(int fd); void gem_require_ring(int fd, int ring_id); /* prime */ +struct local_dma_buf_sync { + uint64_t flags; +}; + +#define LOCAL_DMA_BUF_SYNC_READ (1 << 0) +#define LOCAL_DMA_BUF_SYNC_WRITE (2 << 0) +#define LOCAL_DMA_BUF_SYNC_RW (LOCAL_DMA_BUF_SYNC_READ | LOCAL_DMA_BUF_SYNC_WRITE) +#define LOCAL_DMA_BUF_SYNC_START (0 << 2) +#define LOCAL_DMA_BUF_SYNC_END (1 << 2) +#define LOCAL_DMA_BUF_SYNC_VALID_FLAGS_MASK \ + (LOCAL_DMA_BUF_SYNC_RW | LOCAL_DMA_BUF_SYNC_END) + +#define LOCAL_DMA_BUF_BASE 'b' +#define LOCAL_DMA_BUF_IOCTL_SYNC _IOW(LOCAL_DMA_BUF_BASE, 0, struct local_dma_buf_sync) + int prime_handle_to_fd(int fd, uint32_t handle); #ifndef DRM_RDWR #define DRM_RDWR O_RDWR @@ -160,6 +175,8 @@ int prime_handle_to_fd(int fd, uint32_t handle); int prime_handle_to_fd_for_mmap(int fd, uint32_t handle); uint32_t prime_fd_to_handle(int fd, int dma_buf_fd); off_t prime_get_size(int dma_buf_fd); +void prime_sync_start(int dma_buf_fd); +void prime_sync_end(int dma_buf_fd); /* addfb2 fb modifiers */ struct local_drm_mode_fb_cmd2 { |