[PATCH 2/8] drm/xe/vf: Don't try to capture engine data unavailable to VF

[Michal Wajdeczko]

Don't capture engine ring registers as thoe are not available for
the VF driver.

Signed-off-by: Michal Wajdeczko <michal.wajdeczko at intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi at intel.com>
---
 drivers/gpu/drm/xe/xe_hw_engine.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/gpu/drm/xe/xe_hw_engine.c b/drivers/gpu/drm/xe/xe_hw_engine.c
index e279ef6c527c..5722f7ef8ce5 100644
--- a/drivers/gpu/drm/xe/xe_hw_engine.c
+++ b/drivers/gpu/drm/xe/xe_hw_engine.c
@@ -25,6 +25,7 @@
 #include "xe_reg_sr.h"
 #include "xe_rtp.h"
 #include "xe_sched_job.h"
+#include "xe_sriov.h"
 #include "xe_tuning.h"
 #include "xe_uc_fw.h"
 #include "xe_wa.h"
@@ -771,6 +772,10 @@ xe_hw_engine_snapshot_capture(struct xe_hw_engine *hwe)
 						    hwe->domain);
 	snapshot->mmio_base = hwe->mmio_base;
 
+	/* no more VF accessible data below this point */
+	if (IS_SRIOV_VF(gt_to_xe(hwe->gt)))
+		return snapshot;
+
 	snapshot->reg.ring_hwstam = hw_engine_mmio_read32(hwe, RING_HWSTAM(0));
 	snapshot->reg.ring_hws_pga = hw_engine_mmio_read32(hwe,
 							   RING_HWS_PGA(0));
-- 
2.25.1