diff --git a/docs/features.txt b/docs/features.txt
index b40b3c15b02..1a6605afed3 100644
--- a/docs/features.txt
+++ b/docs/features.txt
@@ -344,7 +344,7 @@ Khronos, ARB, and OES extensions that are not part of any OpenGL or OpenGL ES ve
   GL_EXT_texture_view                                   DONE (all drivers that support GL_OES_texture_view)
   GL_KHR_blend_equation_advanced_coherent               DONE (freedreno/a6xx, llvmpipe, panfrost, zink, asahi, iris/gen9+, v3d)
   GL_KHR_robust_buffer_access_behavior                  DONE (panfrost, llvmpipe, virgl)
-  GL_KHR_shader_subgroup                                DONE (radeonsi, zink, asahi)
+  GL_KHR_shader_subgroup                                DONE (radeonsi, zink, asahi, iris/gen9+)
   GL_KHR_texture_compression_astc_hdr                   DONE (panfrost, asahi)
   GL_KHR_texture_compression_astc_sliced_3d             DONE (freedreno/a4xx+, r600, radeonsi, panfrost, softpipe, llvmpipe, v3d, virgl, zink, lima, asahi, iris/gen9+)
   GL_OES_depth_texture_cube_map                         DONE (all drivers that support GLSL 1.30+)
diff --git a/src/gallium/drivers/iris/iris_screen.c b/src/gallium/drivers/iris/iris_screen.c
index 89b5a1fcf04..4ec026dea6f 100644
--- a/src/gallium/drivers/iris/iris_screen.c
+++ b/src/gallium/drivers/iris/iris_screen.c
@@ -499,6 +499,20 @@ iris_init_screen_caps(struct iris_screen *screen)
     * shift it right by one, so the highest valid address bit gets unset.
     */
    caps->max_vma = intel_48b_address(UINT64_MAX) >> 1;
+
+   if (devinfo->ver >= 9) {
+      caps->shader_subgroup_size = 32;
+      caps->shader_subgroup_supported_stages = BITFIELD_MASK(MESA_SHADER_STAGES);
+      caps->shader_subgroup_supported_features =
+         devinfo->has_64bit_float ? BITFIELD_MASK(PIPE_SHADER_SUBGROUP_NUM_FEATURES)
+                                  : (PIPE_SHADER_SUBGROUP_FEATURE_BASIC |
+                                     PIPE_SHADER_SUBGROUP_FEATURE_VOTE |
+                                     PIPE_SHADER_SUBGROUP_FEATURE_BALLOT |
+                                     PIPE_SHADER_SUBGROUP_FEATURE_SHUFFLE |
+                                     PIPE_SHADER_SUBGROUP_FEATURE_SHUFFLE_RELATIVE |
+                                     PIPE_SHADER_SUBGROUP_FEATURE_QUAD);
+      caps->shader_subgroup_quad_all_stages = true;
+   }
 }
 
 static uint64_t