AlexIndustrial/mesa
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

i965: Use the blitter in intel_bufferobj_subdata for busy BOs on Gen6+.

Browse Source 
Previously we only did this pre-Gen6, and used pwrite on Gen6+.
In one workload, this cuts significant amount of overhead.

v2: Simplify the function based on Eric's suggestions.

Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
This commit is contained in:
Kenneth Graunke
2012-07-02 15:04:00 -07:00
parent 978807ef01
commit 16060531ba
1 changed files with 10 additions and 16 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/mesa/drivers/dri/intel/intel_buffer_objects.c
+10 -16
View File
@@ -205,16 +205,16 @@ intel_bufferobj_subdata(struct gl_context * ctx,
drm_intel_bo_busy(intel_obj->buffer) ||
drm_intel_bo_references(intel->batch.bo, intel_obj->buffer);
/* replace the current busy bo with fresh data */
if (busy && size == intel_obj->Base.Size) {
drm_intel_bo_unreference(intel_obj->buffer);
intel_bufferobj_alloc_buffer(intel, intel_obj);
drm_intel_bo_subdata(intel_obj->buffer, 0, size, data);
} else if (intel->gen < 6) {
if (busy) {
drm_intel_bo *temp_bo;
temp_bo = drm_intel_bo_alloc(intel->bufmgr, "subdata temp", size, 64);
if (busy) {
if (size == intel_obj->Base.Size) {
/* Replace the current busy bo with fresh data. */
drm_intel_bo_unreference(intel_obj->buffer);
intel_bufferobj_alloc_buffer(intel, intel_obj);
drm_intel_bo_subdata(intel_obj->buffer, 0, size, data);
} else {
/* Use the blitter to upload the new data. */
drm_intel_bo *temp_bo =
drm_intel_bo_alloc(intel->bufmgr, "subdata temp", size, 64);
drm_intel_bo_subdata(temp_bo, 0, size, data);
@@ -224,14 +224,8 @@ intel_bufferobj_subdata(struct gl_context * ctx,
size);
drm_intel_bo_unreference(temp_bo);
} else {
drm_intel_bo_subdata(intel_obj->buffer, offset, size, data);
}
} else {
/* Can't use the blit to modify the buffer in the middle of batch. */
if (drm_intel_bo_references(intel->batch.bo, intel_obj->buffer)) {
intel_batchbuffer_flush(intel);
}
drm_intel_bo_subdata(intel_obj->buffer, offset, size, data);
}
}