asahi: Add ASAHI_MESA_DEBUG=nowc flag
Add a debug flag to disable write-combining as a performance hack. This may help diagnose slowness with glReadPixels() heavy workloads like screen capture.
Signed-off-by: Alyssa Rosenzweig alyssa@rosenzweig.io
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Add a debug flag to disable write-combining as a performance hack. This may help diagnose slowness with glReadPixels() heavy workloads like screen capture.
Signed-off-by: Alyssa Rosenzweig alyssa@rosenzweig.io