[PATCH v2 1/9] drm/xe/vf: Disable features that do not apply to VFs

[Michal Wajdeczko]

We already maintain several flags that control the availability
of features on a given device. Disable features, like PCODE or
GuC PC or GSC, that do not apply to a VF device.

Signed-off-by: Michal Wajdeczko <michal.wajdeczko at intel.com>
Cc: Piotr Piórkowski <piotr.piorkowski at intel.com>
---
v2: also disable display (Piotr)
---
 drivers/gpu/drm/xe/xe_device.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/drivers/gpu/drm/xe/xe_device.c b/drivers/gpu/drm/xe/xe_device.c
index 75d4c8ae9234..0d57eea8f083 100644
--- a/drivers/gpu/drm/xe/xe_device.c
+++ b/drivers/gpu/drm/xe/xe_device.c
@@ -486,6 +486,17 @@ static int wait_for_lmem_ready(struct xe_device *xe)
 	return 0;
 }
 
+static void update_device_info(struct xe_device *xe)
+{
+	/* disable features that are not available/applicable to VFs */
+	if (IS_SRIOV_VF(xe)) {
+		xe->info.enable_display = 0;
+		xe->info.has_heci_gscfi = 0;
+		xe->info.skip_guc_pc = 1;
+		xe->info.skip_pcode = 1;
+	}
+}
+
 /**
  * xe_device_probe_early: Device early probe
  * @xe: xe device instance
@@ -506,6 +517,8 @@ int xe_device_probe_early(struct xe_device *xe)
 
 	xe_sriov_probe_early(xe);
 
+	update_device_info(xe);
+
 	err = xe_pcode_probe_early(xe);
 	if (err)
 		return err;
-- 
2.43.0