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| author | shaoyunl <shaoyun.liu@amd.com> | 2021-11-14 12:38:18 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-11-17 23:04:57 -0500 |
| commit | 2cf49e00d40d5132e3d067b5aa6d84791929ab15 (patch) | |
| tree | 7b4aba275a0bcab089bd253d607384397fad2eec /drivers/gpu | |
| parent | 3dac776e349a214c07fb2b0e5973947b0aade4f6 (diff) | |
| download | linux-stable-2cf49e00d40d5132e3d067b5aa6d84791929ab15.tar.gz linux-stable-2cf49e00d40d5132e3d067b5aa6d84791929ab15.tar.bz2 linux-stable-2cf49e00d40d5132e3d067b5aa6d84791929ab15.zip | |
drm/amd/amdkfd: Fix kernel panic when reset failed and been triggered again
In SRIOV configuration, the reset may failed to bring asic back to normal but stop cpsch
already been called, the start_cpsch will not be called since there is no resume in this
case. When reset been triggered again, driver should avoid to do uninitialization again.
Signed-off-by: shaoyunl <shaoyun.liu@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c index 003ba6a373ff..93e33dd84dd4 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c @@ -1226,6 +1226,11 @@ static int stop_cpsch(struct device_queue_manager *dqm) bool hanging; dqm_lock(dqm); + if (!dqm->sched_running) { + dqm_unlock(dqm); + return 0; + } + if (!dqm->is_hws_hang) unmap_queues_cpsch(dqm, KFD_UNMAP_QUEUES_FILTER_ALL_QUEUES, 0); hanging = dqm->is_hws_hang || dqm->is_resetting; |