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 | 6 ++++--
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/src/amd/vulkan/radv_device.c b/src/amd/vulkan/radv_device.c
index aa2b021..a75ad27 100644
--- a/src/amd/vulkan/radv_device.c
+++ b/src/amd/vulkan/radv_device.c
@@ -370,7 +370,7 @@ void radv_GetPhysicalDeviceFeatures(
                .independentBlend                         = true,
                .geometryShader                           = false,
                .tessellationShader                       = false,
-               .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 652a2c4..6bec7c7 100644
--- a/src/amd/vulkan/radv_pipeline.c
+++ b/src/amd/vulkan/radv_pipeline.c
@@ -1021,8 +1021,10 @@ radv_pipeline_init_multisample_state(struct 
radv_pipeline *pipeline,
 
        ms->num_samples = vkms->rasterizationSamples;
 
-       if (pipeline->shaders[MESA_SHADER_FRAGMENT]->info.fs.force_persample) {
-               ps_iter_samples = vkms->rasterizationSamples;
+       if (vkms->sampleShadingEnable) {
+               ps_iter_samples = ms->num_samples * vkms->minSampleShading;
+       } else if 
(pipeline->shaders[MESA_SHADER_FRAGMENT]->info.fs.force_persample) {
+               ps_iter_samples = ms->num_samples;
        }
 
        ms->pa_sc_line_cntl = S_028BDC_DX10_DIAMOND_TEST_ENA(1);
-- 
2.7.4

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