diff options
| author | Shaoyun Liu <Shaoyun.Liu@amd.com> | 2018-07-11 22:33:04 -0400 |
|---|---|---|
| committer | Oded Gabbay <oded.gabbay@gmail.com> | 2018-07-11 22:33:04 -0400 |
| commit | a29ec470b19e58044005973301f233e0b20ed8c4 (patch) | |
| tree | c1155668317cde74f8de3613783c19744b94d12b /drivers/gpu/drm/amd/amdkfd/kfd_device.c | |
| parent | 1b0bfcff463f390c4032ebe36a4d5fb777c00a4c (diff) | |
drm/amdkfd: Add debugfs interface to trigger HWS hang
Signed-off-by: Shaoyun Liu <Shaoyun.Liu@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdkfd/kfd_device.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_device.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device.c b/drivers/gpu/drm/amd/amdkfd/kfd_device.c index 9f63ac366284..8faa8db3eba5 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_device.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_device.c @@ -914,3 +914,26 @@ int kfd_gtt_sa_free(struct kfd_dev *kfd, struct kfd_mem_obj *mem_obj) kfree(mem_obj); return 0; } + +#if defined(CONFIG_DEBUG_FS) + +/* This function will send a package to HIQ to hang the HWS + * which will trigger a GPU reset and bring the HWS back to normal state + */ +int kfd_debugfs_hang_hws(struct kfd_dev *dev) +{ + int r = 0; + + if (dev->dqm->sched_policy != KFD_SCHED_POLICY_HWS) { + pr_err("HWS is not enabled"); + return -EINVAL; + } + + r = pm_debugfs_hang_hws(&dev->dqm->packets); + if (!r) + r = dqm_debugfs_execute_queues(dev->dqm); + + return r; +} + +#endif |