[PATCH 1/2] drm/xe/vf: Don't try Driver-FLR if VF

[Michal Wajdeczko]

Driver-FLR can't be triggered from the VF driver, so treat it
as disabled if VF. While around, fix also the message, as it
shouldn't be printed just 'once' as we may have many devices.

Signed-off-by: Michal Wajdeczko <michal.wajdeczko at intel.com>
---
 drivers/gpu/drm/xe/xe_device.c | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/xe/xe_device.c b/drivers/gpu/drm/xe/xe_device.c
index 5d79b439dd62..a2afa8a88997 100644
--- a/drivers/gpu/drm/xe/xe_device.c
+++ b/drivers/gpu/drm/xe/xe_device.c
@@ -504,7 +504,15 @@ ALLOW_ERROR_INJECTION(xe_device_create, ERRNO); /* See xe_pci_probe() */
 
 static bool xe_driver_flr_disabled(struct xe_device *xe)
 {
-	return xe_mmio_read32(xe_root_tile_mmio(xe), GU_CNTL_PROTECTED) & DRIVERINT_FLR_DIS;
+	if (IS_SRIOV_VF(xe))
+		return true;
+
+	if (xe_mmio_read32(xe_root_tile_mmio(xe), GU_CNTL_PROTECTED) & DRIVERINT_FLR_DIS) {
+		drm_info(&xe->drm, "Driver-FLR disabled by BIOS\n");
+		return true;
+	}
+
+	return false;
 }
 
 /*
@@ -568,10 +576,8 @@ static void __xe_driver_flr(struct xe_device *xe)
 
 static void xe_driver_flr(struct xe_device *xe)
 {
-	if (xe_driver_flr_disabled(xe)) {
-		drm_info_once(&xe->drm, "BIOS Disabled Driver-FLR\n");
+	if (xe_driver_flr_disabled(xe))
 		return;
-	}
 
 	__xe_driver_flr(xe);
 }
-- 
2.47.1