On 03/13/2014 09:05 AM, Ian Romanick wrote: > On 03/13/2014 01:57 AM, Kenneth Graunke wrote: >> diff --git a/src/mesa/drivers/dri/i965/intel_upload.c >> b/src/mesa/drivers/dri/i965/intel_upload.c >> index ec3109b..c767b7d 100644 >> --- a/src/mesa/drivers/dri/i965/intel_upload.c >> +++ b/src/mesa/drivers/dri/i965/intel_upload.c >> @@ -25,7 +25,16 @@ >> /** >> * @file intel_upload.c >> * >> - * Batched upload via BOs. >> + * A batched data upload mechanism which can efficiently copy user supplied >> + * data into buffer objects. >> + * >> + * OpenGL allows applications to provide data in user arrays, which may >> + * disappear or change contents at any time. The GPU can't use this memory >> + * directly, so we need to copy it into buffer objects. >> + * >> + * Often times, the amount of data we need to copy is small. On non-LLC >> + * platforms, it's more efficient to stage this data in a CPU-sized buffer > ^^^^^ > Is sized the word you mean here? Or should it be CPU-side?
No, I meant a literally 22nm sized buffer... :) Fixed, thanks. --Ken
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