diff options
| author | Nicolai Hähnle <nicolai.haehnle@amd.com> | 2017-02-07 16:59:54 +0100 |
|---|---|---|
| committer | Nicolai Hähnle <nicolai.haehnle@amd.com> | 2017-04-05 10:37:17 +0200 |
| commit | c2637a17d95e645cc45eb648d03324502ab99748 (patch) | |
| tree | 9b8f61aaceba8e42083c76efebe396e1c3e2c2af | |
| parent | d9bc4d8305c3f3ee4b82386ae119d72d3a66a4d2 (diff) | |
radeon/winsys: add sparse buffer interface
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
| -rw-r--r-- | src/gallium/drivers/radeon/radeon_winsys.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/src/gallium/drivers/radeon/radeon_winsys.h b/src/gallium/drivers/radeon/radeon_winsys.h index a19ece6634..a63485175d 100644 --- a/src/gallium/drivers/radeon/radeon_winsys.h +++ b/src/gallium/drivers/radeon/radeon_winsys.h @@ -53,6 +53,7 @@ enum radeon_bo_flag { /* bitfield */ RADEON_FLAG_CPU_ACCESS = (1 << 1), RADEON_FLAG_NO_CPU_ACCESS = (1 << 2), RADEON_FLAG_HANDLE = (1 << 3), /* the buffer most not be suballocated */ + RADEON_FLAG_SPARSE = (1 << 4), }; enum radeon_bo_usage { /* bitfield */ @@ -66,6 +67,8 @@ enum radeon_bo_usage { /* bitfield */ RADEON_USAGE_SYNCHRONIZED = 8 }; +#define RADEON_SPARSE_PAGE_SIZE (64 * 1024) + enum ring_type { RING_GFX = 0, RING_COMPUTE, @@ -575,6 +578,20 @@ struct radeon_winsys { struct winsys_handle *whandle); /** + * Change the commitment of a (64KB-page aligned) region of the given + * sparse buffer. + * + * \warning There is no automatic synchronization with command submission. + * + * \note Only implemented by the amdgpu winsys. + * + * \return false on out of memory or other failure, true on success. + */ + bool (*buffer_commit)(struct pb_buffer *buf, + uint64_t offset, uint64_t size, + bool commit); + + /** * Return the virtual address of a buffer. * * When virtual memory is not in use, this is the offset relative to the |