[RFC PATCH 2/2] drm/xe/uapi: Expose wmtp as engine capability

[Nirmoy Das]

Add capabilities to engine struct which can be used to
expose various capabilities of each engines.

Add wmtp as engine capability which is retrieve from
GT info.

Take a field from the reserved for that purpose.

Signed-off-by: Nirmoy Das <nirmoy.das at intel.com>
---
 drivers/gpu/drm/xe/xe_query.c | 5 +++++
 include/uapi/drm/xe_drm.h     | 6 ++++--
 2 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/xe/xe_query.c b/drivers/gpu/drm/xe/xe_query.c
index 7e924faeeea0..10981b46c56f 100644
--- a/drivers/gpu/drm/xe/xe_query.c
+++ b/drivers/gpu/drm/xe/xe_query.c
@@ -215,6 +215,11 @@ static int query_engines(struct xe_device *xe,
 			engines->engines[i].instance.pad = 0;
 			memset(engines->engines[i].reserved, 0,
 			       sizeof(engines->engines[i].reserved));
+			if (gt->info.has_wmtp &&
+			    (hwe->class == XE_ENGINE_CLASS_COMPUTE ||
+			     hwe->class == XE_ENGINE_CLASS_RENDER))
+				engines->engines[i].capabilities |=
+					DRM_XE_ENGINE_CAPABILITY_WMTP;
 
 			i++;
 		}
diff --git a/include/uapi/drm/xe_drm.h b/include/uapi/drm/xe_drm.h
index 50bbea0992d9..5dac079e64de 100644
--- a/include/uapi/drm/xe_drm.h
+++ b/include/uapi/drm/xe_drm.h
@@ -247,9 +247,11 @@ struct drm_xe_engine_class_instance {
 struct drm_xe_engine {
 	/** @instance: The @drm_xe_engine_class_instance */
 	struct drm_xe_engine_class_instance instance;
-
+#define DRM_XE_ENGINE_CAPABILITY_WMTP		BIT(0)
+	/** @capabilities: Capabilities of this engine. */
+	__u64 capabilities;
 	/** @reserved: Reserved */
-	__u64 reserved[3];
+	__u64 reserved[2];
 };
 
 /**
-- 
2.42.0