From: Dave Airlie <airl...@redhat.com>

This calculates ps_iter_samples from the minSampleShading input

Signed-off-by: Dave Airlie <airl...@redhat.com>
---
 src/amd/vulkan/radv_device.c   | 2 +-
 src/amd/vulkan/radv_pipeline.c | 4 +++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/amd/vulkan/radv_device.c b/src/amd/vulkan/radv_device.c
index 111bc7e..497ef21 100644
--- a/src/amd/vulkan/radv_device.c
+++ b/src/amd/vulkan/radv_device.c
@@ -570,7 +570,7 @@ void radv_GetPhysicalDeviceFeatures(
                .independentBlend                         = true,
                .geometryShader                           = !is_gfx9,
                .tessellationShader                       = !is_gfx9,
-               .sampleRateShading                        = false,
+               .sampleRateShading                        = true,
                .dualSrcBlend                             = true,
                .logicOp                                  = true,
                .multiDrawIndirect                        = true,
diff --git a/src/amd/vulkan/radv_pipeline.c b/src/amd/vulkan/radv_pipeline.c
index 8449464..496c06a 100644
--- a/src/amd/vulkan/radv_pipeline.c
+++ b/src/amd/vulkan/radv_pipeline.c
@@ -1349,7 +1349,9 @@ radv_pipeline_init_multisample_state(struct radv_pipeline 
*pipeline,
        else
                ms->num_samples = 1;
 
-       if (pipeline->shaders[MESA_SHADER_FRAGMENT]->info.fs.force_persample) {
+       if (vkms && vkms->sampleShadingEnable) {
+               ps_iter_samples = ceil(vkms->minSampleShading * 
ms->num_samples);
+       } else if 
(pipeline->shaders[MESA_SHADER_FRAGMENT]->info.fs.force_persample) {
                ps_iter_samples = ms->num_samples;
        }
 
-- 
2.9.4

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