[PATCH 0/4] some optimization for evergreen cs

Grazvydas Ignotas notasas at gmail.com
Tue Sep 22 16:03:08 PDT 2015


On Sun, Aug 23, 2015 at 3:57 AM, Grazvydas Ignotas <notasas at gmail.com> wrote:
> These patches try to reduce CPU usage of register command checker
> without affecting functionality.
> For me this gives 3-4% perf improvement in glxgears and ~1% CPU usage reduction
> in "The Talos Principle" CS thread.
>
> Grazvydas Ignotas (4):
>   drm/radeon: simplify register checker
>   drm/radeon: split evergreen_cs_check_reg
>   drm/radeon: refactor register check loop
>   drm/radeon: remove use of volatile qualifier
>
>  drivers/gpu/drm/radeon/evergreen_cs.c | 104 +++++++++++++++-------------------
>  1 file changed, 47 insertions(+), 57 deletions(-)

Can someone take a look at these? They still apply on current mainline
and I've been using them for a while without issues. I've also ran
piglit gpu tests and found no regressions.

GraÅžvydas


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