diff --git a/drivers/gpu/drm/amd/include/atombios.h b/drivers/gpu/drm/amd/include/atombios.h
index 181a2c3c636236c4cb5d8616c049f91924d0e970..f696bbb643efbe34574dabe11765fcfd59c15ceb 100644
--- a/drivers/gpu/drm/amd/include/atombios.h
+++ b/drivers/gpu/drm/amd/include/atombios.h
@@ -4292,6 +4292,7 @@ typedef struct _ATOM_DPCD_INFO
 #define ATOM_VRAM_OPERATION_FLAGS_SHIFT        30
 #define   ATOM_VRAM_BLOCK_NEEDS_NO_RESERVATION   0x1
 #define   ATOM_VRAM_BLOCK_NEEDS_RESERVATION      0x0
+#define   ATOM_VRAM_BLOCK_SRIOV_MSG_SHARE_RESERVATION 0x2
 
 /***********************************************************************************/
 // Structure used in VRAM_UsageByFirmwareTable