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_packet_manager.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_packet_manager.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_packet_manager.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_packet_manager.c b/drivers/gpu/drm/amd/amdkfd/kfd_packet_manager.c index c317feb43f69..1092631765cb 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_packet_manager.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_packet_manager.c @@ -418,4 +418,30 @@ out: return 0; } +int pm_debugfs_hang_hws(struct packet_manager *pm) +{ + uint32_t *buffer, size; + int r = 0; + + size = pm->pmf->query_status_size; + mutex_lock(&pm->lock); + pm->priv_queue->ops.acquire_packet_buffer(pm->priv_queue, + size / sizeof(uint32_t), (unsigned int **)&buffer); + if (!buffer) { + pr_err("Failed to allocate buffer on kernel queue\n"); + r = -ENOMEM; + goto out; + } + memset(buffer, 0x55, size); + pm->priv_queue->ops.submit_packet(pm->priv_queue); + + pr_info("Submitting %x %x %x %x %x %x %x to HIQ to hang the HWS.", + buffer[0], buffer[1], buffer[2], buffer[3], + buffer[4], buffer[5], buffer[6]); +out: + mutex_unlock(&pm->lock); + return r; +} + + #endif |