Module: Mesa
Branch: master
Commit: c2799574eb104218ac4f6b8a3d64b8a0f8c89525
URL:    
http://cgit.freedesktop.org/mesa/mesa/commit/?id=c2799574eb104218ac4f6b8a3d64b8a0f8c89525

Author: Bas Nieuwenhuizen <[email protected]>
Date:   Wed May 30 08:50:03 2018 +0200

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 <[email protected]>
Reviewed-by: Samuel Pitoiset <[email protected]>

---

 src/amd/vulkan/radv_device.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/amd/vulkan/radv_device.c b/src/amd/vulkan/radv_device.c
index 61b4fba23f..93b6e61106 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;
                }

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