[Intel-xe] [RFC v1 06/17] drm/xe: Extend uAPI to query HuC micro-controler firmware version

[Francois Dugast]

The infrastructure to query GuC firmware version is already in place. It
is extended with a new micro-controller type to query the HuC firmware
version. It can be used from user space to know if HuC is running.

Signed-off-by: Francois Dugast <francois.dugast at intel.com>
---
 drivers/gpu/drm/xe/xe_query.c | 9 +++++++++
 include/uapi/drm/xe_drm.h     | 1 +
 2 files changed, 10 insertions(+)

diff --git a/drivers/gpu/drm/xe/xe_query.c b/drivers/gpu/drm/xe/xe_query.c
index efbcf2ef436e..00a8aa7668de 100644
--- a/drivers/gpu/drm/xe/xe_query.c
+++ b/drivers/gpu/drm/xe/xe_query.c
@@ -528,6 +528,15 @@ query_uc_fw_version(struct xe_device *xe, struct drm_xe_device_query *query)
 		resp.branch_ver = 0;
 		break;
 	}
+	case XE_QUERY_UC_TYPE_HUC: {
+		struct xe_huc *huc = &xe->tiles[0].primary_gt->uc.huc;
+
+		resp.major_ver = huc->fw.major_ver_found;
+		resp.minor_ver = huc->fw.minor_ver_found;
+		resp.patch_ver = huc->fw.patch_ver_found;
+		resp.branch_ver = 0;
+		break;
+	}
 	default:
 		return -EINVAL;
 	}
diff --git a/include/uapi/drm/xe_drm.h b/include/uapi/drm/xe_drm.h
index e091dcf75b88..8d5bd2b9c408 100644
--- a/include/uapi/drm/xe_drm.h
+++ b/include/uapi/drm/xe_drm.h
@@ -475,6 +475,7 @@ struct drm_xe_query_topology_mask {
 struct drm_xe_query_uc_fw_version {
 	/** @uc: The micro-controller type to query firmware version */
 #define XE_QUERY_UC_TYPE_GUC 0
+#define XE_QUERY_UC_TYPE_HUC 1
 	__u16 uc_type;
 
 	/** @pad: MBZ */
-- 
2.34.1