From: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Date: Wed, 30 May 2018 06:50:03 +0000 (+0200)
Subject: radv: Only expose subgroup shuffles on VI+.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=c2799574eb104218ac4f6b8a3d64b8a0f8c89525;p=mesa.git

radv: Only expose subgroup shuffles on VI+.

The current implementation depends on bpermute, which
is VI+.

Fixes: f2c6a550611 "radv: enable subgroup capabilities"
Reviewed-by: Daniel Schürmann <daniel.schuermann@campus.tu-berlin.de>
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
---

diff --git a/src/amd/vulkan/radv_device.c b/src/amd/vulkan/radv_device.c
index 61b4fba23f8..93b6e611067 100644
--- a/src/amd/vulkan/radv_device.c
+++ b/src/amd/vulkan/radv_device.c
@@ -963,9 +963,12 @@ void radv_GetPhysicalDeviceProperties2(
 							VK_SUBGROUP_FEATURE_BASIC_BIT |
 							VK_SUBGROUP_FEATURE_BALLOT_BIT |
 							VK_SUBGROUP_FEATURE_QUAD_BIT |
-							VK_SUBGROUP_FEATURE_SHUFFLE_BIT |
-							VK_SUBGROUP_FEATURE_SHUFFLE_RELATIVE_BIT |
 							VK_SUBGROUP_FEATURE_VOTE_BIT;
+			if (pdevice->rad_info.chip_class >= VI) {
+				properties->supportedOperations |=
+							VK_SUBGROUP_FEATURE_SHUFFLE_BIT |
+							VK_SUBGROUP_FEATURE_SHUFFLE_RELATIVE_BIT;
+			}
 			properties->quadOperationsInAllStages = true;
 			break;
 		}