| Message ID | 1536643489-6238-1-git-send-email-hui.wang@canonical.com |
|---|---|
| Headers | show |
| Series | fix the hang problem for nvidia p1000 graphic card | expand |
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