panfrost: Set reads_frag_coord as a sysval
In addition to parsing out the varying. This is needed so it works on
Bifrost as well.
Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5267>
diff --git a/src/gallium/drivers/panfrost/pan_assemble.c b/src/gallium/drivers/panfrost/pan_assemble.c
index f804e2b..3bc384d 100644
--- a/src/gallium/drivers/panfrost/pan_assemble.c
+++ b/src/gallium/drivers/panfrost/pan_assemble.c
@@ -177,6 +177,9 @@
bool vertex_id = s->info.system_values_read & (1 << SYSTEM_VALUE_VERTEX_ID);
bool instance_id = s->info.system_values_read & (1 << SYSTEM_VALUE_INSTANCE_ID);
+ /* On Bifrost it's a sysval, on Midgard it's a varying */
+ state->reads_frag_coord = s->info.system_values_read & (1 << SYSTEM_VALUE_FRAG_COORD);
+
switch (stage) {
case MESA_SHADER_VERTEX:
state->attribute_count = util_bitcount64(s->info.inputs_read);