panfrost: Don't advertise MSAA on Bifrost

Not yet supported and rather broken.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7206>

diff --git a/src/gallium/drivers/panfrost/pan_screen.c b/src/gallium/drivers/panfrost/pan_screen.c
index 734835b..cb3d865 100644 (file)
--- a/src/gallium/drivers/panfrost/pan_screen.c
+++ b/src/gallium/drivers/panfrost/pan_screen.c
@@ -436,6 +436,7 @@ panfrost_is_format_supported( struct pipe_screen *screen,
                               unsigned bind)
 {
         struct panfrost_device *dev = pan_device(screen);
+        bool is_bifrost = (dev->quirks & IS_BIFROST);
         const struct util_format_description *format_desc;
 
         assert(target == PIPE_BUFFER ||
@@ -463,6 +464,10 @@ panfrost_is_format_supported( struct pipe_screen *screen,
         if (MAX2(sample_count, 1) != MAX2(storage_sample_count, 1))
                 return false;
 
+        /* Don't advertise multisampling on Bifrost yet */
+        if (is_bifrost && sample_count > 1)
+                return false;
+
         /* Don't confuse poorly written apps (workaround dEQP bug) that expect
          * more alpha than they ask for */