if (amdgpu_gart_size == -1) {
                switch (adev->asic_type) {
                case CHIP_NAVI10:
+               case CHIP_NAVI14:
                default:
                        adev->gmc.gart_size = 512ULL << 20;
                        break;
        adev->gmc.vram_type = amdgpu_atomfirmware_get_vram_type(adev);
        switch (adev->asic_type) {
        case CHIP_NAVI10:
+       case CHIP_NAVI14:
                /*
                 * To fulfill 4-level page support,
-                * vm size is 256TB (48bit), maximum size of Navi10,
+                * vm size is 256TB (48bit), maximum size of Navi10/Navi14,
                 * block size 512 (9bit)
                 */
                amdgpu_vm_adjust_size(adev, 256 * 1024, 9, 3, 48);
 {
        switch (adev->asic_type) {
        case CHIP_NAVI10:
+       case CHIP_NAVI14:
                break;
        default:
                break;