diff options
Diffstat (limited to 'src/gallium/auxiliary/pipebuffer/pb_buffer_fenced.c')
| -rw-r--r-- | src/gallium/auxiliary/pipebuffer/pb_buffer_fenced.c | 28 |
1 files changed, 19 insertions, 9 deletions
diff --git a/src/gallium/auxiliary/pipebuffer/pb_buffer_fenced.c b/src/gallium/auxiliary/pipebuffer/pb_buffer_fenced.c index 533c0a15f3..17ff61b675 100644 --- a/src/gallium/auxiliary/pipebuffer/pb_buffer_fenced.c +++ b/src/gallium/auxiliary/pipebuffer/pb_buffer_fenced.c @@ -284,16 +284,26 @@ fenced_buffer_map(struct pb_buffer *buf, unsigned flags) { struct fenced_buffer *fenced_buf = fenced_buffer(buf); + struct fenced_buffer_list *fenced_list = fenced_buf->list; + struct pb_fence_ops *ops = fenced_list->ops; void *map; - assert(flags & PIPE_BUFFER_USAGE_CPU_READ_WRITE); - assert(!(flags & ~PIPE_BUFFER_USAGE_CPU_READ_WRITE)); - flags &= PIPE_BUFFER_USAGE_CPU_READ_WRITE; - - /* Check for GPU read/write access */ - if(fenced_buf->flags & PIPE_BUFFER_USAGE_GPU_WRITE) { - /* Wait for the GPU to finish writing */ - _fenced_buffer_finish(fenced_buf); + assert(!(flags & PIPE_BUFFER_USAGE_GPU_READ_WRITE)); + + /* Serialize writes */ + if((fenced_buf->flags & PIPE_BUFFER_USAGE_GPU_WRITE) || + ((fenced_buf->flags & PIPE_BUFFER_USAGE_GPU_READ) && (flags & PIPE_BUFFER_USAGE_CPU_WRITE))) { + if(flags & PIPE_BUFFER_USAGE_DONTBLOCK) { + /* Don't wait for the GPU to finish writing */ + if(ops->fence_signalled(ops, fenced_buf->fence, 0) == 0) + _fenced_buffer_remove(fenced_list, fenced_buf); + else + return NULL; + } + else { + /* Wait for the GPU to finish writing */ + _fenced_buffer_finish(fenced_buf); + } } #if 0 @@ -307,7 +317,7 @@ fenced_buffer_map(struct pb_buffer *buf, map = pb_map(fenced_buf->buffer, flags); if(map) { ++fenced_buf->mapcount; - fenced_buf->flags |= flags; + fenced_buf->flags |= flags & PIPE_BUFFER_USAGE_CPU_READ_WRITE; } return map; |