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authorFelix Kuehling <Felix.Kuehling@amd.com>2019-09-05 19:22:02 -0400
committerAlex Deucher <alexander.deucher@amd.com>2019-09-17 14:38:35 -0500
commitdcafbd50f2e4d5cc964aae409fb5691b743fba23 (patch)
treef60261f3512f7fd01d4a6dd12758a19c0f77d936 /drivers/gpu
parentdrm/amd/amdgpu: power up sdma engine when S3 resume back (diff)
downloadlinux-dev-dcafbd50f2e4d5cc964aae409fb5691b743fba23.tar.xz
linux-dev-dcafbd50f2e4d5cc964aae409fb5691b743fba23.zip
drm/amdgpu: Fix KFD-related kernel oops on Hawaii
Hawaii needs to flush caches explicitly, submitting an IB in a user VMID from kernel mode. There is no s_fence in this case. Fixes: eb3961a57424 ("drm/amdgpu: remove fence context from the job") Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c
index 7850084a05e3..60655834d649 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c
@@ -143,7 +143,8 @@ int amdgpu_ib_schedule(struct amdgpu_ring *ring, unsigned num_ibs,
/* ring tests don't use a job */
if (job) {
vm = job->vm;
- fence_ctx = job->base.s_fence->scheduled.context;
+ fence_ctx = job->base.s_fence ?
+ job->base.s_fence->scheduled.context : 0;
} else {
vm = NULL;
fence_ctx = 0;