APPLIED: [SRU][Bionic][B-OEM][PATCH 0/1] fix the hang problem for nvidia p1000 graphic card

[Stefan Bader]

On 11.09.2018 07:24, Hui Wang wrote:
> BugLink: https://bugs.launchpad.net/bugs/1791569
> 
> This patch is in the 4.18 already, no need to send it to cosmic.
> 
> Due to the context conflict, if we want to apply this patch as it is, we
> need to apply a large amount of patches ahead of this patch, it is possible
> to introduce some regression. So I made some change in this patch, it is
> some differnt from the orignal patch, but they have the same logic, and it
> can be applied to bionic kernel.
> 
> [Impact]
> We have 2 nvidia graphic cards, and the nouveau driver in the bionic kernel can't
> work well with both of these 2 cards, one of the cards hang during the boot
> process, we compared the output of lspci and vbios version of these 2 cards, they
> are same; and according to nivida's reply, it is possible that they have some
> difference on computational units (https://devtalk.nvidia.com/default/topic/1038973/
> linux/2-same-quadro-p1000-cards-but-only-one-can-install-ubuntu-/), and kernel-4.18
> fixed this problem, through bisect, this patch was found.
> 
> [Fix]
> backport a upstream patch to fix this problem. without this patch, the number of tpc
> (texture process cluster) is hardcoded to be 5 for some nv graphic families, but
> in practice, the tpc number of many families is not 5. And the p1000 grphic card belong
> to gp107 family, it is 3 intead of 5.
> 
> 
> [Test Case]
> tested this patch with P1000, P2000, P620 and P500 graphic cards, all work well as before.
> 
> [Regression Potential]
> Very low, this patch comes from upstream, and I have tested it with many nv graphic
> cards, they all worked well as before.
> 
> 
> 
> Ben Skeggs (1):
>   drm/nouveau/gr/gf100-: virtualise tpc_mask + apply fixes from traces
> 
>  drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgf100.c |  6 ++++++
>  drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgf100.h | 12 +++++++-----
>  drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgm200.c | 17 ++++++++++++++---
>  drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgm20b.c |  2 +-
>  drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgp100.c | 17 +++++++++--------
>  drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgp102.c |  2 ++
>  drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgp107.c |  2 ++
>  drivers/gpu/drm/nouveau/nvkm/engine/gr/gf100.h    |  2 ++
>  drivers/gpu/drm/nouveau/nvkm/engine/gr/gm200.c    |  1 +
>  drivers/gpu/drm/nouveau/nvkm/engine/gr/gp100.c    |  2 ++
>  drivers/gpu/drm/nouveau/nvkm/engine/gr/gp102.c    |  2 ++
>  drivers/gpu/drm/nouveau/nvkm/engine/gr/gp107.c    |  2 ++
>  drivers/gpu/drm/nouveau/nvkm/engine/gr/gp10b.c    |  2 ++
>  13 files changed, 52 insertions(+), 17 deletions(-)
> 
Applied to bionic/master-next. Thanks.

-Stefan

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