From 5a9f8db2db70e09b47010a936b6c4fb83975464f Mon Sep 17 00:00:00 2001
From: Marcin Bernatowicz <marcin.bernatowicz@linux.intel.com>
Date: Wed, 5 Feb 2025 20:16:43 +0100
Subject: [PATCH] drm/xe/vf: Return EOPNOTSUPP for
 DRM_XE_DEVICE_QUERY_ENGINE_CYCLES if VF
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RING_TIMESTAMP registers are not available for VF (Virtual Function)
drivers. Return -EOPNOTSUPP when the DRM_XE_DEVICE_QUERY_ENGINE_CYCLES
ioctl is invoked on a VF device.

Signed-off-by: Marcin Bernatowicz <marcin.bernatowicz@linux.intel.com>
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Michał Winiarski <michal.winiarski@intel.com>
Cc: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Reviewed-by: Satyanarayana K V P <satyanarayana.k.v.p@intel.com>
Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250205191644.2550879-2-marcin.bernatowicz@linux.intel.com
---
 drivers/gpu/drm/xe/xe_query.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/xe/xe_query.c b/drivers/gpu/drm/xe/xe_query.c
index 042f87a688e75..ebfae746f8613 100644
--- a/drivers/gpu/drm/xe/xe_query.c
+++ b/drivers/gpu/drm/xe/xe_query.c
@@ -121,6 +121,9 @@ query_engine_cycles(struct xe_device *xe,
 	struct xe_gt *gt;
 	unsigned int fw_ref;
 
+	if (IS_SRIOV_VF(xe))
+		return -EOPNOTSUPP;
+
 	if (query->size == 0) {
 		query->size = size;
 		return 0;
-- 
2.39.5