From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 106363] Powerplay support for SI asics Date: Wed, 20 Jun 2018 09:31:39 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1577708823==" Return-path: Received: from culpepper.freedesktop.org (culpepper.freedesktop.org [131.252.210.165]) by gabe.freedesktop.org (Postfix) with ESMTP id DDBB26E701 for ; Wed, 20 Jun 2018 09:31:38 +0000 (UTC) In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org --===============1577708823== Content-Type: multipart/alternative; boundary="15294870981.bdbEa0.11514" Content-Transfer-Encoding: 7bit --15294870981.bdbEa0.11514 Date: Wed, 20 Jun 2018 09:31:38 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.freedesktop.org/ Auto-Submitted: auto-generated https://bugs.freedesktop.org/show_bug.cgi?id=3D106363 --- Comment #4 from Gregor M=C3=BCnch --- (In reply to Alex Deucher from comment #3) > dpm is enabled by default on SI parts so setting dpm=3D1 doesn't change > anything. This depends if you use amdgpu instead of radeon on SI. In that case amdgpu= .dpm seems to be disabled. I tried to enable DPMS and read through a bunch of tutorials configuring Xo= rg but nothing did work. Then I stumbled about a newsentry on phoronix mentioned this patch: https://lists.freedesktop.org/archives/amd-gfx/2018-May/022771.html There you change the behavior for CIK parts to use PP by default. The logic= of this patch changes amdgpu.dpm=3D-1 (auto) to switch from whatever to Powerp= lay. I started my Kernel with amdgpu.dpm=3D1 and everything suddenly worked like magic. Since I dont what Powerplay actually does in the Linux world and a quick go= ogle search came up with nothing and modinfo amdgpu just reveils dpm:DPM support (1 =3D enable, 0 =3D disable, -1 =3D auto) (int) but nothing about Powerplay I was really under the impression that DPM also enables Powerplay. Im sorry for the confusion. --=20 You are receiving this mail because: You are the assignee for the bug.= --15294870981.bdbEa0.11514 Date: Wed, 20 Jun 2018 09:31:38 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.freedesktop.org/ Auto-Submitted: auto-generated

Commen= t # 4 on bug 10636= 3 from Gregor M=C3=BCnch 
(In reply to Alex Deucher from comment #3)
> dpm is enabled by default on SI parts so setting=
 dpm=3D1 doesn't change
> anything.

This depends if you use amdgpu instead of radeon on SI. In that case amdgpu=
.dpm
seems to be disabled.
I tried to enable DPMS and read through a bunch of tutorials configuring Xo=
rg
but nothing did work.
Then I stumbled about a newsentry on phoronix mentioned this patch:
https://lists.freedesktop.org/archives/amd-gfx/2018-May/022771.html
There you change the behavior for CIK parts to use PP by default. The logic=
 of
this patch changes amdgpu.dpm=3D-1 (auto) to switch from whatever to Powerp=
lay.


I started my Kernel with amdgpu.dpm=3D1 and everything suddenly worked like
magic.

Since I dont what Powerplay actually does in the Linux world and a quick go=
ogle
search came up with nothing and modinfo amdgpu just reveils
dpm:DPM support (1 =3D enable, 0 =3D disable, -1 =3D auto) (int)
but nothing about Powerplay I was really under the impression that DPM also
enables Powerplay.
Im sorry for the confusion.

You are receiving this mail because:
  • You are the assignee for the bug.
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