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.c | |
| 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.c')
| -rw-r--r-- | lib/ioctl_wrappers.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/lib/ioctl_wrappers.c b/lib/ioctl_wrappers.c index 171f5261..8c7e939d 100644 --- a/lib/ioctl_wrappers.c +++ b/lib/ioctl_wrappers.c @@ -1493,6 +1493,32 @@ off_t prime_get_size(int dma_buf_fd) } /** + * prime_sync_start + * @dma_buf_fd: dma-buf fd handle + */ +void prime_sync_start(int dma_buf_fd) +{ + struct local_dma_buf_sync sync_start; + + memset(&sync_start, 0, sizeof(sync_start)); + sync_start.flags = LOCAL_DMA_BUF_SYNC_START | LOCAL_DMA_BUF_SYNC_RW; + do_ioctl(dma_buf_fd, LOCAL_DMA_BUF_IOCTL_SYNC, &sync_start); +} + +/** + * prime_sync_end + * @dma_buf_fd: dma-buf fd handle + */ +void prime_sync_end(int dma_buf_fd) +{ + struct local_dma_buf_sync sync_end; + + memset(&sync_end, 0, sizeof(sync_end)); + sync_end.flags = LOCAL_DMA_BUF_SYNC_END | LOCAL_DMA_BUF_SYNC_RW; + do_ioctl(dma_buf_fd, LOCAL_DMA_BUF_IOCTL_SYNC, &sync_end); +} + +/** * igt_require_fb_modifiers: * @fd: Open DRM file descriptor. * |