Mesa (master): panfrost: Assert on unimplemented fragcoord etc

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Module: Mesa
Branch: master
Commit: c6244f9311d0aefc806a0fa14785b3de78312bba
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=c6244f9311d0aefc806a0fa14785b3de78312bba

Author: Alyssa Rosenzweig <alyssa.rosenzweig at collabora.com>
Date:   Tue Apr 21 18:22:26 2020 -0400

panfrost: Assert on unimplemented fragcoord etc

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig at collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4671>

---

 src/gallium/drivers/panfrost/pan_cmdstream.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/gallium/drivers/panfrost/pan_cmdstream.c b/src/gallium/drivers/panfrost/pan_cmdstream.c
index e207c6d9614..d07e7ae278a 100644
--- a/src/gallium/drivers/panfrost/pan_cmdstream.c
+++ b/src/gallium/drivers/panfrost/pan_cmdstream.c
@@ -1682,6 +1682,9 @@ panfrost_emit_varying_descriptor(struct panfrost_batch *batch,
         if (fs->reads_frag_coord)
                 varyings[gl_FragCoord].elements = MALI_VARYING_FRAG_COORD;
 
+        struct panfrost_device *device = pan_device(ctx->base.screen);
+        assert(!(device->quirks & IS_BIFROST) || !(reads_point_coord || fs->reads_face || fs->reads_frag_coord));
+
         /* Let's go ahead and link varying meta to the buffer in question, now
          * that that information is available. VARYING_SLOT_POS is mapped to
          * gl_FragCoord for fragment shaders but gl_Positionf or vertex shaders