[Nouveau] [PATCH 0/2] allow partly reclocking on chipset

[Karol Herbst]

> Samuel Pitoiset <samuel.pitoiset at gmail.com> hat am 13. Januar 2016 um 13:43
> geschrieben:
> 
> Hi!
> 
> Did you check on different Fermi chipsets or only with one variant?

currently I only checked that on my nvc1, but I thought I could just send the
patches and it is easier for others to try it out this way.

> 
> Are you sure that engine reclocking works as expected on Fermi? Because 
> enabling it without a strong inspection sounds like a prediction and it 
> might not work.

It seems to work, because I got a huge performance increase in
gputest_pixmark_piano, check the second commit for details ;)

> 
> On 01/13/2016 01:25 PM, Karol Herbst wrote:
> > some chipset have working engine reclocking, but broken memory reclocking
> > like
> > Fermi. We should for now, add the functionality to allow partly reclocking
> > for
> > those.
> >
> > Allthough this doesn't give as much performance as one might wish, it is
> > till
> > noticeable and may improve performance enough to be noted.
> >
> > Karol Herbst (2):
> > clk: seperate engine and memory reclock toggles
> > clk: allow engine reclock on fermi
> >
> > drm/nouveau/include/nvkm/subdev/clk.h | 3 ++-
> > drm/nouveau/nvkm/subdev/clk/base.c | 21 ++++++++++++++-------
> > drm/nouveau/nvkm/subdev/clk/gf100.c | 3 ++-
> > drm/nouveau/nvkm/subdev/clk/gk104.c | 3 ++-
> > drm/nouveau/nvkm/subdev/clk/gk20a.c | 2 +-
> > drm/nouveau/nvkm/subdev/clk/gt215.c | 2 +-
> > drm/nouveau/nvkm/subdev/clk/mcp77.c | 3 ++-
> > drm/nouveau/nvkm/subdev/clk/nv04.c | 2 +-
> > drm/nouveau/nvkm/subdev/clk/nv40.c | 2 +-
> > drm/nouveau/nvkm/subdev/clk/nv50.c | 2 +-
> > drm/nouveau/nvkm/subdev/clk/priv.h | 6 ++++--
> > 11 files changed, 31 insertions(+), 18 deletions(-)
> >
> 
> -- 
> -Samuel