intel: Buffered upload

Rather than performing lots of little writes to update the common bo
upon each update, write those into a static buffer and flush that when
full (or at the end of the batch). Doing so gives a dramatic performance
improvement over and above using mmaped access.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

1 files changed, 2 insertions, 0 deletions

diff --git a/src/mesa/drivers/dri/intel/intel_buffer_objects.h b/src/mesa/drivers/dri/intel/intel_buffer_objects.h
index 71f0c52fd8..4b66bf7d59 100644
--- a/src/mesa/drivers/dri/intel/intel_buffer_objects.h
+++ b/src/mesa/drivers/dri/intel/intel_buffer_objects.h
@@ -80,6 +80,8 @@ void *intel_upload_map(struct intel_context *intel,
 		       drm_intel_bo **return_bo,
 		       GLuint *return_offset);
 
+void intel_upload_finish(struct intel_context *intel);
+
 /* Hook the bufferobject implementation into mesa:
  */
 void intelInitBufferObjectFuncs(struct dd_function_table *functions);