[PATCH v2 05/10] drm/xe/guc: Update few GuC CTB ABI definitions

[Michal Wajdeczko]

In upcoming new GuC ABI definitions we will want to refer to max
number of dwords that could fit into CTB HXG message. Add explicit
definition named as GUC_CTB_MAX_DWORDS and start using it.

Reviewed-by: Piotr Piórkowski <piotr.piorkowski at intel.com>
Signed-off-by: Michal Wajdeczko <michal.wajdeczko at intel.com>
---
 drivers/gpu/drm/xe/abi/guc_communication_ctb_abi.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/xe/abi/guc_communication_ctb_abi.h b/drivers/gpu/drm/xe/abi/guc_communication_ctb_abi.h
index 3b83f907ece4..4aaed1cb4e12 100644
--- a/drivers/gpu/drm/xe/abi/guc_communication_ctb_abi.h
+++ b/drivers/gpu/drm/xe/abi/guc_communication_ctb_abi.h
@@ -81,12 +81,13 @@ static_assert(sizeof(struct guc_ct_buffer_desc) == 64);
 
 #define GUC_CTB_HDR_LEN				1u
 #define GUC_CTB_MSG_MIN_LEN			GUC_CTB_HDR_LEN
-#define GUC_CTB_MSG_MAX_LEN			256u
+#define GUC_CTB_MSG_MAX_LEN			(GUC_CTB_MSG_MIN_LEN + GUC_CTB_MAX_DWORDS)
 #define GUC_CTB_MSG_0_FENCE			(0xffff << 16)
 #define GUC_CTB_MSG_0_FORMAT			(0xf << 12)
 #define   GUC_CTB_FORMAT_HXG			0u
 #define GUC_CTB_MSG_0_RESERVED			(0xf << 8)
 #define GUC_CTB_MSG_0_NUM_DWORDS		(0xff << 0)
+#define   GUC_CTB_MAX_DWORDS			255
 
 /**
  * DOC: CTB HXG Message
-- 
2.25.1