diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c
index bde63e7cd501..d535dfa84bdf 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c
@@ -763,6 +763,7 @@ static int gmc_v10_0_mc_init(struct amdgpu_device *adev)
 		case CHIP_SIENNA_CICHLID:
 		case CHIP_NAVY_FLOUNDER:
 		case CHIP_VANGOGH:
+		case CHIP_DIMGREY_CAVEFISH:
 		default:
 			adev->gmc.gart_size = 512ULL << 20;
 			break;
@@ -829,6 +830,7 @@ static int gmc_v10_0_sw_init(void *handle)
 	case CHIP_SIENNA_CICHLID:
 	case CHIP_NAVY_FLOUNDER:
 	case CHIP_VANGOGH:
+	case CHIP_DIMGREY_CAVEFISH:
 		adev->num_vmhubs = 2;
 		/*
 		 * To fulfill 4-level page support,
@@ -943,6 +945,7 @@ static void gmc_v10_0_init_golden_registers(struct amdgpu_device *adev)
 	case CHIP_SIENNA_CICHLID:
 	case CHIP_NAVY_FLOUNDER:
 	case CHIP_VANGOGH:
+	case CHIP_DIMGREY_CAVEFISH:
 		break;
 	default:
 		break;