bugzilla-daemon at freedesktop.org
2013-Dec-17 21:17 UTC
[Nouveau] [Bug 58378] [NV86] Distorted graphics on NVIDIA GeForce 8400M G after upgrade the kernel to 3.7.0 version
https://bugs.freedesktop.org/show_bug.cgi?id=58378 --- Comment #43 from Andreas Loew <awl1 at gmx.net> --- Hello again, so it looks like I have now tracked the issue down. The "offending" commit seems to be: 4c193d254ee94da02857b9670e815b1765a9579b (the first commit which showed the issue - I tried for more than half an hour with its direct predecessor d1b167e168bdac0b6af11e7a8c601773639fc419, but could not reproduce the issue. As the change by the offending commit seems really very 'simple': "use crypto engine for async buffer copies" @@ -821,6 +839,7 @@ nouveau_bo_move_init(struct nouveau_channel *chan) } _methods[] = { { "COPY", 0xa0b5, nve0_bo_move_copy, nvc0_bo_move_init }, { "M2MF", 0x9039, nvc0_bo_move_m2mf, nvc0_bo_move_init }, + { "CRYPT", 0x74c1, nv84_bo_move_exec, nv50_bo_move_init }, { "M2MF", 0x5039, nv50_bo_move_m2mf, nv50_bo_move_init }, { "M2MF", 0x0039, nv04_bo_move_m2mf, nv04_bo_move_init }, at the heart of the issue, I think we now have the question whether it indeed is correct that there might be NV84-compatible G86 variants (such as my 8400M-based Quadro NVS130M), for which this "nv84_bo_move_exec" causes issues...!? One more question regarding verification with current kernels: In a current kernel, method nouveau_bo_move_init looks similar, but different: } _methods[] = { { "COPY", 4, 0xa0b5, nve0_bo_move_copy, nve0_bo_move_init }, { "GRCE", 0, 0xa0b5, nve0_bo_move_copy, nvc0_bo_move_init }, { "COPY1", 5, 0x90b8, nvc0_bo_move_copy, nvc0_bo_move_init }, { "COPY0", 4, 0x90b5, nvc0_bo_move_copy, nvc0_bo_move_init }, { "COPY", 0, 0x85b5, nva3_bo_move_copy, nv50_bo_move_init }, { "CRYPT", 0, 0x74c1, nv84_bo_move_exec, nv50_bo_move_init }, { "M2MF", 0, 0x9039, nvc0_bo_move_m2mf, nvc0_bo_move_init }, { "M2MF", 0, 0x5039, nv50_bo_move_m2mf, nv50_bo_move_init }, { "M2MF", 0, 0x0039, nv04_bo_move_m2mf, nv04_bo_move_init }, {}, { "CRYPT", 0, 0x88b4, nv98_bo_move_exec, nv50_bo_move_init }, }, *mthd = _methods; what would be an equivalent change to a current kernel to roll back the effects of the above forward patch? Looking forward to your feedback... Thanks a million & best regards, Andreas -- You are receiving this mail because: You are the assignee for the bug. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.freedesktop.org/archives/nouveau/attachments/20131217/f0497a92/attachment.html>
Possibly Parallel Threads
- [PATCH] drm/nouveau: missing cases of rename ttm_mem_reg to ttm_resource.
- [PATCH] drm/nouveau: missing cases of rename ttm_mem_reg to ttm_resource.
- [PATCH] drm/nv50-: fix tiled memory layout checks
- [PATCH] drm/nouveau: Fix ttm move init with multiple GPUs
- [Bug 58378] [NV86] Distorted graphics on NVIDIA GeForce 8400M G after upgrade the kernel to 3.7.0 version