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-rw-r--r--include/uapi/misc/habanalabs.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/include/uapi/misc/habanalabs.h b/include/uapi/misc/habanalabs.h
index 4d593050c42b..523e511e6cff 100644
--- a/include/uapi/misc/habanalabs.h
+++ b/include/uapi/misc/habanalabs.h
@@ -209,7 +209,8 @@ struct hl_info_args {
/* Opcode to destroy previously created command buffer */
#define HL_CB_OP_DESTROY 1
-#define HL_MAX_CB_SIZE 0x200000 /* 2MB */
+/* 2MB minus 32 bytes for 2xMSG_PROT */
+#define HL_MAX_CB_SIZE (0x200000 - 32)
struct hl_cb_in {
/* Handle of CB or 0 if we want to create one */