panfrost: Enable ES3 conformant floating-point

Don't suppress inf/nan. Triggers bugs in broken apps like glmark2 (fixed
upstream but traces don't have the fix yet), so update the trace
expectations.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7550>

ci-expects/panfrost/deqp-panfrost-t860-fails.txt

@@ -13,5 +13,3 @@ dEQP-GLES3.functional.fbo.blit.rect.nearest_consistency_min_reverse_src_dst_x,Fa
 dEQP-GLES3.functional.fbo.blit.rect.nearest_consistency_min_reverse_src_dst_y,Fail
 dEQP-GLES3.functional.fbo.blit.rect.nearest_consistency_min_reverse_src_x,Fail
 dEQP-GLES3.functional.fbo.blit.rect.nearest_consistency_min_reverse_src_y,Fail
-dEQP-GLES3.functional.shaders.matrix.inverse.dynamic.lowp_mat2_float_vertex,Fail
-dEQP-GLES3.functional.shaders.matrix.inverse.dynamic.mediump_mat2_float_vertex,Fail

ci-expects/panfrost/traces-panfrost.yml

@@ -85,15 +85,15 @@ traces:
   - path: glmark2/conditionals-fragment-steps=0:vertex-steps=0.rdc
     expectations:
       - device: gl-panfrost-t860
-        checksum: 3016ecf514ac5b699a9e052dada6b053
+        checksum: a2f0af93cfa71e811322a0734c93d6a8
   - path: glmark2/conditionals-fragment-steps=0:vertex-steps=5.rdc
     expectations:
       - device: gl-panfrost-t860
-        checksum: 55de9bfd25583a520cd8fae99e1bd7d2
+        checksum: 724ecf71b24b86ac6834c2f8ab708f80
   - path: glmark2/conditionals-fragment-steps=5:vertex-steps=0.rdc
     expectations:
       - device: gl-panfrost-t860
-        checksum: 9a5a0778eaec1e5e11178b0c83e6dfc3
+        checksum: 308a92d7782a2180836db4b82591c34f
   - path: glmark2/desktop-effect=shadow:windows=4.rdc
     expectations:
       - device: gl-panfrost-t860
@@ -109,11 +109,11 @@ traces:
   - path: glmark2/function-fragment-complexity=low:fragment-steps=5.rdc
     expectations:
       - device: gl-panfrost-t860
-        checksum: afac822bbe1a16f0d0535f5917c97599
+        checksum: 312d20f8a464447791d0cb95f1a047df
   - path: glmark2/function-fragment-complexity=medium:fragment-steps=5.rdc
     expectations:
       - device: gl-panfrost-t860
-        checksum: e6b3744f9a4a4a2abc4b0d150c0d3f2e
+        checksum: 813b65cbdf62014d7e17d35e8f3dc141
   - path: glmark2/glmark2-build-use-vbo-false.rdc
     expectations:
       - device: gl-panfrost-t860
@@ -129,15 +129,15 @@ traces:
   - path: glmark2/loop-fragment-loop=false:fragment-steps=5:vertex-steps=5.rdc
     expectations:
       - device: gl-panfrost-t860
-        checksum: 93153c43101b732f54ef60bef3b97ab3
+        checksum: dcf9598ddb4dfff90aacd883a2dbbbc8
   - path: glmark2/loop-fragment-steps=5:fragment-uniform=false:vertex-steps=5.rdc
     expectations:
       - device: gl-panfrost-t860
-        checksum: 41e3a73f8841e84160f565c595465b96
+        checksum: c1c45f43522954ef599cdadb950997b7
   - path: glmark2/loop-fragment-steps=5:fragment-uniform=true:vertex-steps=5.rdc
     expectations:
       - device: gl-panfrost-t860
-        checksum: a3ea242009b4934b4edc27e1729b1dfc
+        checksum: 32cc6275627fd068dcf1c05a4000cf1d
   - path: glmark2/pulsar-light=false:quads=5:texture=false.rdc
     expectations:
       - device: gl-panfrost-t860
@@ -169,7 +169,7 @@ traces:
   - path: glmark2/terrain.rdc
     expectations:
       - device: gl-panfrost-t860
-        checksum: 3ad257e1db7ad3e5dfd88fb1091ddeae
+        checksum: 2264a06895a84154bd2f54abffcc48d8
   - path: glmark2/texture-texture-filter=linear.rdc
     expectations:
       - device: gl-panfrost-t860

src/gallium/drivers/panfrost/pan_assemble.c

@@ -48,11 +48,7 @@ pan_prepare_midgard_props(struct panfrost_shader_state *state,
         state->properties.uniform_buffer_count = state->ubo_count;
         state->properties.midgard.uniform_count = program->uniform_cutoff;
         state->properties.midgard.shader_has_side_effects = state->writes_global;
-
-        /* TODO: Select the appropriate mode. Suppresing inf/nan works around
-         * some bugs in gles2 apps (eg glmark2's terrain scene) but isn't
-         * conformant on gles3 */
-        state->properties.midgard.fp_mode = MALI_FP_MODE_GL_INF_NAN_SUPPRESSED;
+        state->properties.midgard.fp_mode = MALI_FP_MODE_GL_INF_NAN_ALLOWED;
 
         /* For fragment shaders, work register count, early-z, reads at draw-time */