Reuse the common upload bo for the temporary blitter storage to try and
minimise resource usage.
Caveats: this may impose a read-read relationship on the buffer between
the blitter and render engines, and may add stalls on old kernels.
Signed-off-by: Chris Wilson <ch...@chris-wilson.co.uk>
---
src/mesa/drivers/dri/i965/intel_buffer_objects.c | 12 ++++--------
1 file changed, 4 insertions(+), 8 deletions(-)
diff --git a/src/mesa/drivers/dri/i965/intel_buffer_objects.c
b/src/mesa/drivers/dri/i965/intel_buffer_objects.c
index 32df381..2b18e2c 100644
--- a/src/mesa/drivers/dri/i965/intel_buffer_objects.c
+++ b/src/mesa/drivers/dri/i965/intel_buffer_objects.c
@@ -235,17 +235,13 @@ brw_buffer_subdata(struct gl_context *ctx,
(long)offset, (long)offset + size, (long)(size/1024),
intel_obj->gpu_active_start,
intel_obj->gpu_active_end);
- brw_bo *temp_bo =
- brw_bo_create(&brw->batch, "subdata temp", size, 64, 0);
-
- brw_bo_write(temp_bo, 0, data, size, 0,
- PERF_DEBUG(brw, "BufferSubData"));
-
+ uint32_t upload;
+ brw_bo *temp_bo = NULL;
+ intel_upload_data(brw, data, size, 64, &temp_bo, &upload);
intel_emit_linear_blit(brw,
intel_obj->buffer, offset,
- temp_bo, 0,
+ temp_bo, upload,
size);
-
brw_bo_put(temp_bo);
return;
} else {
--
2.5.0
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