similar to: Questions about some PFB registers on NVAC cards

(Sending it to the correct Nvidia mailing list, sorry for the spam) Hi, When using acceleration with Nouveau on MacBook Pros with an 9400M (NVAC) card, a PFIFO interrupt 0x00400000 is thrown during the initialisation of that card (sometime after PFIFO and PGRAPH initialisation) and the laptop will lockup [1], forcing users to load Nouveau without acceleration. After some investigation, I found

On Wed, Oct 22, 2014 at 12:55:23AM +0200, pierre.morrow at free.fr wrote: [...] > After some investigation, I found that enabling bit 1 of register 100c14 fixes > the issue on that card. Other NVAC cards are working great without that trick, > and it seems they have that bit enabled by default. What is the role of that > bit, and when should it be turned on? Register 100c14 controls a

Hi Robert, After trying to write a proper patch for Nouveau, we realised we were missing a few pieces of information. ----- Mail original ----- > Hi Robert, > > Thanks a lot for your response! > > ----- Mail original ----- > > On Wed, Oct 22, 2014 at 12:55:23AM +0200, pierre.morrow at free.fr > > wrote: > > [...] > > > After some investigation, I found

(This is a v2 of patch "drm/nouveau/disp/nv50: Add PFB writes") This fix a GPU lockup on 9400M (NVAC) when using acceleration, see https://bugs.freedesktop.org/show_bug.cgi?id=27501 v2: - Move code to subdev/fb/nv50.c as suggested by Roy Spliet; - Remove arbitrary writes to 100c18/100c24 as suggested by Roy Spliet; - Replace write to 100c1c of arbitrary value by the address of a

This fix a GPU lockup on 9400M (NVAC) when using acceleration, see #27501. Signed-off-by: Pierre Moreau <pierre.morrow at free.fr> --- drivers/gpu/drm/nouveau/core/engine/disp/nv50.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/nv50.c b/drivers/gpu/drm/nouveau/core/engine/disp/nv50.c index a7efbff..e425604 100644 ---

(This is a v3 of patch "drm/nouveau/fb/nv50: Add PFB writes") This fix a GPU lockup on 9400M (NVAC) when using acceleration, see https://bugs.freedesktop.org/show_bug.cgi?id=27501 v2: - Move code to subdev/fb/nv50.c as suggested by Roy Spliet; - Remove arbitrary writes to 100c18/100c24 - Replace write to 100c1c of arbitrary value by the address of a scratch page as proposed by Ilia

On Wed, Dec 10, 2014 at 5:53 PM, Pierre Moreau <pierre.morrow at free.fr> wrote: > (This is a v3 of patch "drm/nouveau/fb/nv50: Add PFB writes") > > This fix a GPU lockup on 9400M (NVAC) when using acceleration, see > https://bugs.freedesktop.org/show_bug.cgi?id=27501 > > v2: > - Move code to subdev/fb/nv50.c as suggested by Roy Spliet; > - Remove arbitrary

https://bugs.freedesktop.org/show_bug.cgi?id=82726 Priority: medium Bug ID: 82726 Assignee: nouveau at lists.freedesktop.org Summary: [NV96][NVAC] [Regression] [Bisected] Probe failed with error -12 QA Contact: xorg-team at lists.x.org Severity: blocker Classification: Unclassified OS: Linux (All)

https://bugs.freedesktop.org/show_bug.cgi?id=38350 Summary: [NVAC] Screen doesn't come back after suspend Product: xorg Version: unspecified Platform: x86-64 (AMD64) OS/Version: Linux (All) Status: NEW Severity: normal Priority: medium Component: Driver/nouveau AssignedTo: nouveau at

v2: Check for PFIFO, don't pause if it's not yet running. This should fix reclocking on boot Signed-off-by: Roy Spliet <rspliet at eclipso.eu> --- drivers/gpu/drm/nouveau/Makefile | 1 + drivers/gpu/drm/nouveau/core/engine/device/nv50.c | 4 +- .../gpu/drm/nouveau/core/include/subdev/clock.h | 4 + drivers/gpu/drm/nouveau/core/subdev/clock/nvaa.c | 439

v2: Check for PFIFO, don't pause if it's not yet running. This should fix reclocking on boot v3: Tiny clean up Signed-off-by: Roy Spliet <rspliet at eclipso.eu> --- drivers/gpu/drm/nouveau/Makefile | 1 + drivers/gpu/drm/nouveau/core/engine/device/nv50.c | 4 +- .../gpu/drm/nouveau/core/include/subdev/clock.h | 4 +

Reclocking of NVAA/NVAC is substantially different from NV50+, enough to justify a separate clock implementation. This code is a forward-port of reclocking code that has been sitting in a branch for a while, and has been tested on my NVAC. Traces show no significant reasons why this shouldn't work on NVAA, but testers are always welcome. And since these are IGPs without dedicated RAM to

https://bugs.freedesktop.org/show_bug.cgi?id=86539 Bug ID: 86539 Summary: [NVAC] Trying to register nv_backlight after NV96 did it Product: xorg Version: git Hardware: x86-64 (AMD64) OS: Linux (All) Status: NEW Severity: normal Priority: medium Component:

https://bugs.freedesktop.org/show_bug.cgi?id=88272 Bug ID: 88272 Summary: [NVAC] Flickering screen on 1920x1080 monitor with 9400M in MacbookPro 5,5 Product: xorg Version: git Hardware: x86-64 (AMD64) OS: Linux (All) Status: NEW Severity: normal Priority: medium

http://bugs.freedesktop.org/show_bug.cgi?id=27036 Summary: kernel panic on resume on 9400M (NVAC) Product: xorg Version: git Platform: Other OS/Version: All Status: NEW Severity: normal Priority: medium Component: Driver/nouveau AssignedTo: nouveau at lists.freedesktop.org ReportedBy: bjt23

https://bugs.freedesktop.org/show_bug.cgi?id=104672 Bug ID: 104672 Summary: [NVAC] Compiz segfaults on login on Ubuntu 17.10 with Unity 7 (kernel DRM bug?) Product: Mesa Version: git Hardware: x86-64 (AMD64) OS: Linux (All) Status: NEW Severity: normal Priority: medium

http://bugs.freedesktop.org/show_bug.cgi?id=22607 Summary: Please add NVac voodoo to the driver Product: xorg Version: git Platform: All OS/Version: All Status: NEW Severity: normal Priority: medium Component: Driver/nouveau AssignedTo: nouveau at lists.freedesktop.org ReportedBy: carlos at

Hello everyone, I would need testers to check that this patch doesn't break working NVAA/NVAC configurations. It fixes an issue where some NVAC would hang on boot; if similar issues exist on NVAA, it may fix them too. You will find the patch below in two different versions: one will apply on Ben Skeggs' repository, the other one will apply on a regular Linux tree. Thanks in advance,

https://bugs.freedesktop.org/show_bug.cgi?id=86537 Bug ID: 86537 Summary: [NV96] Unable to handle page request from nv50_crtc_prepare Product: xorg Version: git Hardware: x86-64 (AMD64) OS: Linux (All) Status: NEW Severity: normal Priority: medium Component:

https://bugs.freedesktop.org/show_bug.cgi?id=89912 Bug ID: 89912 Summary: Sometimes Nouveau hangs kernel with PGRAPH engine fault Product: xorg Version: unspecified Hardware: x86-64 (AMD64) OS: Linux (All) Status: NEW Severity: normal Priority: medium Component: