From 4fc5050f82a6b59a86370f44c64e7592ff621f6f Mon Sep 17 00:00:00 2001 From: Jerome Glisse Date: Mon, 20 Sep 2010 17:21:37 -0400 Subject: r600g: add back reference check when mapping buffer Signed-off-by: Jerome Glisse --- src/gallium/winsys/r600/drm/radeon_bo_pb.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) (limited to 'src/gallium/winsys/r600/drm') diff --git a/src/gallium/winsys/r600/drm/radeon_bo_pb.c b/src/gallium/winsys/r600/drm/radeon_bo_pb.c index 148cf6d81d..897938c2ca 100644 --- a/src/gallium/winsys/r600/drm/radeon_bo_pb.c +++ b/src/gallium/winsys/r600/drm/radeon_bo_pb.c @@ -55,7 +55,6 @@ radeon_bo_pb_map_internal(struct pb_buffer *_buf, struct radeon_bo_pb *buf = radeon_bo_pb(_buf); struct pipe_context *pctx = ctx; -//printf("%s:%d ************************************************\n", __func__, __LINE__); if (flags & PB_USAGE_UNSYNCHRONIZED) { if (!buf->bo->data && radeon_bo_map(buf->mgr->radeon, buf->bo)) { return NULL; @@ -64,11 +63,13 @@ radeon_bo_pb_map_internal(struct pb_buffer *_buf, return buf->bo->data; } - if (flags & PB_USAGE_DONTBLOCK) { - return NULL; - } - if (ctx) { - pctx->flush(pctx, 0, NULL); + if (p_atomic_read(&buf->bo->reference.count) > 1) { + if (flags & PB_USAGE_DONTBLOCK) { + return NULL; + } + if (ctx) { + pctx->flush(pctx, 0, NULL); + } } if (flags & PB_USAGE_DONTBLOCK) { -- cgit v1.2.3