[Intel-gfx] [PATCH v2 08/16] drm/i915/guc: Update CT message header definition

[Michal Wajdeczko]

Flags bits are different in G2H message.

Signed-off-by: Michal Wajdeczko <michal.wajdeczko at intel.com>
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio at intel.com>
Cc: Oscar Mateo <oscar.mateo at intel.com>
Cc: Kelvin Gardiner <kelvin.gardiner at intel.com>
---
 drivers/gpu/drm/i915/intel_guc_fwif.h | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_guc_fwif.h b/drivers/gpu/drm/i915/intel_guc_fwif.h
index 367aa65..89781d3 100644
--- a/drivers/gpu/drm/i915/intel_guc_fwif.h
+++ b/drivers/gpu/drm/i915/intel_guc_fwif.h
@@ -358,17 +358,24 @@ struct guc_ct_buffer_desc {
  *
  * bit[4..0]	message len (in dwords)
  * bit[7..5]	reserved
+ * bit[10..8]	flags
+ * bit[15..11]	reserved
+ * bit[31..16]	action code
+ *
+ * H2G flags:
  * bit[8]	write fence to desc
  * bit[9]	write status to H2G buff
  * bit[10]	send status (via G2H)
- * bit[15..11]	reserved
- * bit[31..16]	action code
+ *
+ * G2H flags:
+ * bit[8]	is response
  */
 #define GUC_CT_MSG_LEN_SHIFT			0
 #define GUC_CT_MSG_LEN_MASK			0x1F
 #define GUC_CT_MSG_WRITE_FENCE_TO_DESC		(1 << 8)
 #define GUC_CT_MSG_WRITE_STATUS_TO_BUFF		(1 << 9)
 #define GUC_CT_MSG_SEND_STATUS			(1 << 10)
+#define GUC_CT_MSG_IS_RESPONSE			(1 << 8)
 #define GUC_CT_MSG_ACTION_SHIFT			16
 #define GUC_CT_MSG_ACTION_MASK			0xFFFF
 
-- 
2.7.4