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render/dmabuf: add dmabuf_import_sync_file

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References: https://lore.kernel.org/dri-devel/20220506180216.2095060-1-jason@jlekstrand.net/
This commit is contained in:
Simon Ser 2022-05-26 14:44:02 +02:00
parent 10f543d579
commit aaf828d3d2
5 changed files with 120 additions and 0 deletions
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26
include/render/dmabuf.h Normal file
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#ifndef RENDER_DMABUF_H
#define RENDER_DMABUF_H
#include <stdbool.h>
#include <stdint.h>
// Copied from <linux/dma-buf.h> to avoid #ifdef soup
#define DMA_BUF_SYNC_READ (1 << 0)
#define DMA_BUF_SYNC_WRITE (2 << 0)
#define DMA_BUF_SYNC_RW (DMA_BUF_SYNC_READ | DMA_BUF_SYNC_WRITE)
/**
* Check whether DMA-BUF import/export from/to sync_file is available.
*
* If this function returns true, dmabuf_import_sync_file() is supported.
*/
bool dmabuf_check_sync_file_import_export(void);
/**
* Import a sync_file into a DMA-BUF with DMA_BUF_IOCTL_IMPORT_SYNC_FILE.
*
* This can be used to make explicit sync interoperate with implicit sync.
*/
bool dmabuf_import_sync_file(int dmabuf_fd, uint32_t flags, int sync_file_fd);
#endif