[PATCH v2 1/4] drm/amdgpu: add UAPI for user queue query status

From: Alex Deucher <[email protected]>

Add an API to query queue status such as whether the
queue is hung or whether vram is lost.

Reviewed-by: Christian König <[email protected]>
Reviewed-by: Sunil Khatri <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
Reviewed-by: Prike Liang <[email protected]>
---
 include/uapi/drm/amdgpu_drm.h | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/include/uapi/drm/amdgpu_drm.h b/include/uapi/drm/amdgpu_drm.h
index 0a113529bdcb..15b0ccfe00e5 100644
--- a/include/uapi/drm/amdgpu_drm.h
+++ b/include/uapi/drm/amdgpu_drm.h
@@ -332,6 +332,7 @@ union drm_amdgpu_ctx {
 /* user queue IOCTL operations */
 #define AMDGPU_USERQ_OP_CREATE	1
 #define AMDGPU_USERQ_OP_FREE	2
+#define AMDGPU_USERQ_OP_QUERY_STATUS	3
 
 /* queue priority levels */
 /* low < normal low < normal high < high */
@@ -344,6 +345,12 @@ union drm_amdgpu_ctx {
 /* for queues that need access to protected content */
 #define AMDGPU_USERQ_CREATE_FLAGS_QUEUE_SECURE  (1 << 2)
 
+
+/* the queue is hung */
+#define AMDGPU_USERQ_QUERY_STATUS_FLAGS_HUNG    (1 << 0)
+/* indicate vram lost since queue was created */
+#define AMDGPU_USERQ_QUERY_STATUS_FLAGS_VRAMLOST (1 << 1)
+
 /*
  * This structure is a container to pass input configuration
  * info for all supported userqueue related operations.
@@ -425,9 +432,16 @@ struct drm_amdgpu_userq_out {
 	__u32 _pad;
 };
 
+/* The structure to carry output of userqueue ops */
+struct drm_amdgpu_userq_out_query_state {
+	__u32 flags;
+	__u32 _pad;
+};
+
 union drm_amdgpu_userq {
 	struct drm_amdgpu_userq_in in;
 	struct drm_amdgpu_userq_out out;
+	struct drm_amdgpu_userq_out_query_state out_qs;
 };
 
 /* GFX V11 IP specific MQD parameters */
-- 
2.34.1