From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 98821] [amdgpu][bisected][polaris] "drm/amdgpu: refine uvd 6.0 clock gate feature" sets MCLK on highest state Date: Tue, 22 Nov 2016 21:41:34 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1871218363==" Return-path: Received: from culpepper.freedesktop.org (culpepper.freedesktop.org [131.252.210.165]) by gabe.freedesktop.org (Postfix) with ESMTP id CBD976E6A1 for ; Tue, 22 Nov 2016 21:41:33 +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 --===============1871218363== Content-Type: multipart/alternative; boundary="14798508930.904ED.13939"; charset="UTF-8" --14798508930.904ED.13939 Date: Tue, 22 Nov 2016 21:41:33 +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=3D98821 --- Comment #8 from Alex Deucher --- (In reply to Arek Ru=C5=9Bniak from comment #7) > Alex I use something like that: > watch -n 1 -c "cat /sys/kernel/debug/dri/0/amdgpu_pm_info" > combined with=20 > vblank_mode=3D0 glxgears > it should set mclk on fire IIRC, but it was still 300MHz, bisecting gives= me: > https://cgit.freedesktop.org/~agd5f/linux/commit/?h=3Ddrm-next-4.10- > wip&id=3Dddfe1db18752b08d88d81cb7b661e1f982fc5d04 >=20 I doubt regular sized gears will generate enough memory load to raise the m= clk. Does it work if you try: vblank_mode=3D0 glxgears -fullscreen Or try some more demanding app. > but when I've tested (in the bisecting proces) commit [1] I saw that mclk= i > set always on 2000MHz... and this is first commit (I checked +/- 1) when = is > set on HIGH no matter what. >=20 > So yes, this are two issues in one I believe because revert > 1b7eab1f8346ab3b8e4fc54882306340a84497a8 fixes them all. Also does the number of displays attached change the behavior? When you say fix, do you mean mclk stays high, or changes dynamically? --=20 You are receiving this mail because: You are the assignee for the bug.= --14798508930.904ED.13939 Date: Tue, 22 Nov 2016 21:41:33 +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

Comment= # 8 on bug 98821<= /a> from Alex Deucher 
(In reply to Arek Ru=C5=9Bniak from comment #7)
> Alex I use something like that:
> watch -n 1 -c "cat /sys/kernel/debug/dri/0/amdgpu_pm_info"
> combined with=20
> vblank_mode=3D0 glxgears
> it should set mclk on fire IIRC, but it was still 300MHz, bisecting gi=
ves me:
> https://cgit.freedesktop.org/~agd5f/linux/commit/?h=3Ddrm-next-4.=
10-
> wip&id=3Dddfe1db18752b08d88d81cb7b661e1f982fc5d04
> 


I doubt regular sized gears will generate enough memory load to raise the m=
clk.
 Does it work if you try:
vblank_mode=3D0 glxgears -fullscreen
Or try some more demanding app.

> but when I've tested (in the bisecting proces) c=
ommit [1] I saw that mclk i
> set always on 2000MHz... and this is first commit (I checked +/- 1) wh=
en is
> set on HIGH no matter what.
>=20
> So yes, this are two issues in one I believe because revert
> 1b7eab1f8346ab3b8e4fc54882306340a84497a8 fixes them all.

Also does the number of displays attached change the behavior?  When you say
fix, do you mean mclk stays high, or changes dynamically?

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