panfrost: Expose COMPUTE-related caps for GLES3.1

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
diff --git a/src/gallium/drivers/panfrost/pan_screen.c b/src/gallium/drivers/panfrost/pan_screen.c
index d8aa6e3..b517c6c 100644
--- a/src/gallium/drivers/panfrost/pan_screen.c
+++ b/src/gallium/drivers/panfrost/pan_screen.c
@@ -143,6 +143,10 @@
         case PIPE_CAP_IMAGE_LOAD_FORMATTED:
                 return is_deqp;
 
+        /* For faking compute shaders */
+        case PIPE_CAP_COMPUTE:
+                return is_deqp;
+
         /* TODO: Where does this req come from in practice? */
         case PIPE_CAP_VERTEX_BUFFER_STRIDE_4BYTE_ALIGNED_ONLY:
                 return 1;
@@ -238,13 +242,13 @@
                           enum pipe_shader_type shader,
                           enum pipe_shader_cap param)
 {
-        if (shader != PIPE_SHADER_VERTEX &&
-            shader != PIPE_SHADER_FRAGMENT) {
-                return 0;
-        }
-
         bool is_deqp = pan_debug & PAN_DBG_DEQP;
 
+        if (shader != PIPE_SHADER_VERTEX &&
+            shader != PIPE_SHADER_FRAGMENT &&
+            !(shader == PIPE_SHADER_COMPUTE && is_deqp))
+                return 0;
+
         /* this is probably not totally correct.. but it's a start: */
         switch (param) {
         case PIPE_SHADER_CAP_SCALAR_ISA: