[PATCH] drm/radeon: disable possible GPU writeback early

Given how kexec works we need to disable any kind of GPU writeback early in GPU initialization just in case some are still active from previous setup. Signed-off-by: Jerome Glisse --- drivers/gpu/drm/radeon/evergreen.c |7 ++ drivers/gpu/drm/radeon/ni.c|9 +++ drivers/gpu

[PATCH] drm/radeon: disable possible GPU writeback early v2

Given how kexec works we need to disable any kind of GPU writeback early in GPU initialization just in case some are still active from previous setup. v2 follow previous sanity work done on earlier radeon, also write reg uncondionaly and disable irq too. Signed-off-by: Jerome Glisse --- drivers

[PATCH] drm/radeon: disable possible GPU writeback early v3

Given how kexec works we need to disable any kind of GPU writeback early in GPU initialization just in case some are still active from previous setup. This patch is done to fix the issue described in the lkml thread : WARNING: at mm/slub.c:3357, kernel BUG at mm/slub.c:3413 https://lkml.org/lkml/