iris: hook up key stuff for clip plane lowering

3 files changed, 15 insertions, 1 deletions

diff --git a/src/gallium/drivers/iris/iris_context.h b/src/gallium/drivers/iris/iris_context.h
index 87757ab0869..08f6f20510a 100644
--- a/src/gallium/drivers/iris/iris_context.h
+++ b/src/gallium/drivers/iris/iris_context.h
@@ -346,6 +346,7 @@ struct iris_vtable {
    uint32_t *(*create_so_decl_list)(const struct pipe_stream_output_info *sol,
                                     const struct brw_vue_map *vue_map);
    void (*populate_vs_key)(const struct iris_context *ice,
+                           const struct shader_info *info,
                            struct brw_vs_prog_key *key);
    void (*populate_tcs_key)(const struct iris_context *ice,
                             struct brw_tcs_prog_key *key);
diff --git a/src/gallium/drivers/iris/iris_program.c b/src/gallium/drivers/iris/iris_program.c
index 10e0161f851..b0306cca4f8 100644
--- a/src/gallium/drivers/iris/iris_program.c
+++ b/src/gallium/drivers/iris/iris_program.c
@@ -183,6 +183,9 @@ iris_create_uncompiled_shader(struct pipe_context *ctx,
 
    switch (nir->info.stage) {
    case MESA_SHADER_VERTEX:
+      /* User clip planes */
+      if (nir->info.clip_distance_array_size == 0)
+         ish->nos |= IRIS_NOS_RASTERIZER;
       // XXX: NOS
       break;
    case MESA_SHADER_TESS_CTRL:
@@ -592,7 +595,7 @@ iris_update_compiled_vs(struct iris_context *ice)
       ice->shaders.uncompiled[MESA_SHADER_VERTEX];
 
    struct brw_vs_prog_key key = { .program_string_id = ish->program_id };
-   ice->vtbl.populate_vs_key(ice, &key);
+   ice->vtbl.populate_vs_key(ice, &ish->nir->info, &key);
 
    if (iris_bind_cached_shader(ice, IRIS_CACHE_VS, &key))
       return;
diff --git a/src/gallium/drivers/iris/iris_state.c b/src/gallium/drivers/iris/iris_state.c
index c6e90b979c0..dc7021f2d64 100644
--- a/src/gallium/drivers/iris/iris_state.c
+++ b/src/gallium/drivers/iris/iris_state.c
@@ -968,6 +968,7 @@ struct iris_rasterizer_state {
    uint32_t wm[GENX(3DSTATE_WM_length)];
    uint32_t line_stipple[GENX(3DSTATE_LINE_STIPPLE_length)];
 
+   uint8_t num_clip_plane_consts;
    bool clip_halfz; /* for CC_VIEWPORT */
    bool depth_clip_near; /* for CC_VIEWPORT */
    bool depth_clip_far; /* for CC_VIEWPORT */
@@ -1145,6 +1146,9 @@ iris_create_rasterizer_state(struct pipe_context *ctx,
       line.LineStippleRepeatCount = line_stipple_factor;
    }
 
+   if (state->clip_plane_enable != 0)
+      cso->num_clip_plane_consts = util_logbase2(state->clip_plane_enable) + 1;
+
    return cso;
 }
 
@@ -2949,9 +2953,15 @@ iris_populate_sampler_key(const struct iris_context *ice,
  */
 static void
 iris_populate_vs_key(const struct iris_context *ice,
+                     const struct shader_info *info,
                      struct brw_vs_prog_key *key)
 {
+   const struct iris_rasterizer_state *cso_rast = ice->state.cso_rast;
+
    iris_populate_sampler_key(ice, &key->tex);
+
+   if (info->clip_distance_array_size == 0)
+      key->nr_userclip_plane_consts = cso_rast->num_clip_plane_consts;
 }
 
 /**