On Saturday, July 22, 2017 2:28:06 AM PDT Chris Wilson wrote: > Considering the prevalence of sse4.1, another candidate is > brw_get_buffer_subdata(), we could use a WC map there as well.
Your thinking is...avoid polluting the CPU cache, since we're basically going to be reading a continuous chunk of buffer data once, and never accessing it again? UC + movntdqa might be pretty reasonable there. WC doesn't buy us much considering it's a read-only map but I guess it doesn't hurt either... --Ken
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