MVKPhysicalDevice: Require Mac family 2 for quad-scope permutation.
According to the Metal Feature Set Tables, only family 2 supports
quad-scope permutation. We've been seeing issues with SIMD-group
functions on family 1 hardware, so for now I'm moving quad-group
permutation to family 2.
diff --git a/MoltenVK/MoltenVK/GPUObjects/MVKDevice.mm b/MoltenVK/MoltenVK/GPUObjects/MVKDevice.mm
index ea3f693..5dde5d0 100644
--- a/MoltenVK/MoltenVK/GPUObjects/MVKDevice.mm
+++ b/MoltenVK/MoltenVK/GPUObjects/MVKDevice.mm
@@ -1396,7 +1396,6 @@
_metalFeatures.multisampleArrayTextures = true;
_metalFeatures.events = true;
_metalFeatures.textureBuffers = true;
- _metalFeatures.quadPermute = true;
_metalFeatures.simdPermute = true;
}
@@ -1405,6 +1404,7 @@
_metalFeatures.stencilFeedback = true;
_metalFeatures.depthResolve = true;
_metalFeatures.stencilResolve = true;
+ _metalFeatures.quadPermute = true;
_metalFeatures.simdReduction = true;
}
