Commit cac74742 authored by Michal Wajdeczko's avatar Michal Wajdeczko Committed by Rodrigo Vivi
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drm/xe/guc: Use valid scratch register for posting read 



There are only 4 scratch registers VF_SW_FLAG(0..3) on each GuC.
We shouldn't use non-existing register VF_SW_FLAG(4) for posting
read.

Signed-off-by: default avatarMichal Wajdeczko <michal.wajdeczko@intel.com>
Reviewed-by: default avatarMatthew Brost <matthew.brost@intel.com>
Signed-off-by: default avatarRodrigo Vivi <rodrigo.vivi@intel.com>
parent 1d087cb7

drivers/gpu/drm/xe/xe_guc.c

+1 −1
Original line number Diff line number Diff line
@@ -615,7 +615,7 @@ int xe_guc_mmio_send_recv(struct xe_guc *guc, const u32 *request, 
	u32 header, reply;

	struct xe_reg reply_reg = xe_gt_is_media_type(gt) ?

		MED_VF_SW_FLAG(0) : VF_SW_FLAG(0);

	const u32 LAST_INDEX = VF_SW_FLAG_COUNT;

	const u32 LAST_INDEX = VF_SW_FLAG_COUNT - 1;

	int ret;

	int i;