From ec6da922df66b1c415c45dc5ca2f083afed013c3 Mon Sep 17 00:00:00 2001
From: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Date: Fri, 9 Apr 2021 13:58:15 +0200
Subject: [PATCH] radv: expose R8_UINT as the only supported format for VRS
 attachments

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/10187>
---
 src/amd/vulkan/radv_formats.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/src/amd/vulkan/radv_formats.c b/src/amd/vulkan/radv_formats.c
index 5770e2789bb..a1202249cf4 100644
--- a/src/amd/vulkan/radv_formats.c
+++ b/src/amd/vulkan/radv_formats.c
@@ -785,6 +785,17 @@ radv_physical_device_get_format_properties(struct radv_physical_device *physical
    if (vk_format_is_compressed(format))
       linear = 0;
 
+   /* From the Vulkan spec 1.2.163:
+    *
+    * "VK_FORMAT_FEATURE_FRAGMENT_SHADING_RATE_ATTACHMENT_BIT_KHR must be supported for the
+    *  following formats if the attachmentFragmentShadingRate feature is supported:"
+    *
+    * - VK_FORMAT_R8_UINT
+    */
+   if (format == VK_FORMAT_R8_UINT) {
+      tiled |= VK_FORMAT_FEATURE_FRAGMENT_SHADING_RATE_ATTACHMENT_BIT_KHR;
+   }
+
    out_properties->linearTilingFeatures = linear;
    out_properties->optimalTilingFeatures = tiled;
    out_properties->bufferFeatures = buffer;