Mesa (master): gallium: cached bufmgr add map busy check
Dave Airlie
airlied at kemper.freedesktop.org
Sun Mar 21 09:42:21 UTC 2010
Module: Mesa
Branch: master
Commit: 0dab3189e1d100a9a2487f7aff45589b423c386c
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=0dab3189e1d100a9a2487f7aff45589b423c386c
Author: Dave Airlie <airlied at redhat.com>
Date: Sun Mar 21 18:23:22 2010 +1000
gallium: cached bufmgr add map busy check
Suggested by Jose on the list, probably not perfect but will let me get
past this for now, testing with a fenced bufmgr on top of this, was slower,
Also this doesn't let you do the busy early exit optimisation either from
what I can see.
Signed-off-by: Dave Airlie <airlied at redhat.com>
---
src/gallium/auxiliary/pipebuffer/pb_bufmgr_cache.c | 9 +++++++++
1 files changed, 9 insertions(+), 0 deletions(-)
diff --git a/src/gallium/auxiliary/pipebuffer/pb_bufmgr_cache.c b/src/gallium/auxiliary/pipebuffer/pb_bufmgr_cache.c
index 86f9266..0f2ae05 100644
--- a/src/gallium/auxiliary/pipebuffer/pb_bufmgr_cache.c
+++ b/src/gallium/auxiliary/pipebuffer/pb_bufmgr_cache.c
@@ -227,6 +227,8 @@ pb_cache_is_buffer_compat(struct pb_cache_buffer *buf,
pb_size size,
const struct pb_desc *desc)
{
+ void *map;
+
if(buf->base.base.size < size)
return FALSE;
@@ -239,6 +241,13 @@ pb_cache_is_buffer_compat(struct pb_cache_buffer *buf,
if(!pb_check_usage(desc->usage, buf->base.base.usage))
return FALSE;
+
+ map = pb_map(buf->buffer, PIPE_BUFFER_USAGE_DONTBLOCK);
+ if (!map) {
+ return FALSE;
+ }
+
+ pb_unmap(buf->buffer);
return TRUE;
}
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