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path: root/drivers/gpu/drm/amd/amdkfd/kfd_packet_manager.c
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Diffstat (limited to 'drivers/gpu/drm/amd/amdkfd/kfd_packet_manager.c')
-rw-r--r--drivers/gpu/drm/amd/amdkfd/kfd_packet_manager.c26
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