etnaviv: factor out shader screen related init/deint

This is a prep step for the next changes.

Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/16172>

src/gallium/drivers/etnaviv/etnaviv_screen.c

@@ -88,8 +88,7 @@ etna_screen_destroy(struct pipe_screen *pscreen)
    if (screen->perfmon)
       etna_perfmon_del(screen->perfmon);
 
-   if (screen->compiler)
+   etna_shader_screen_fini(pscreen);
-      etna_compiler_destroy(screen->compiler);
 
    if (screen->pipe)
       etna_pipe_del(screen->pipe);
@@ -1147,8 +1146,7 @@ etna_screen_create(struct etna_device *dev, struct etna_gpu *gpu,
    pscreen->query_dmabuf_modifiers = etna_screen_query_dmabuf_modifiers;
    pscreen->is_dmabuf_modifier_supported = etna_screen_is_dmabuf_modifier_supported;
 
-   screen->compiler = etna_compiler_create(etna_screen_get_name(pscreen));
+   if (!etna_shader_screen_init(pscreen))
-   if (!screen->compiler)
       goto fail;
 
    etna_fence_screen_init(pscreen);

src/gallium/drivers/etnaviv/etnaviv_shader.c

@@ -531,3 +531,23 @@ etna_shader_init(struct pipe_context *pctx)
    pctx->bind_vs_state = etna_bind_vs_state;
    pctx->delete_vs_state = etna_delete_shader_state;
 }
+
+bool
+etna_shader_screen_init(struct pipe_screen *pscreen)
+{
+   struct etna_screen *screen = etna_screen(pscreen);
+
+   screen->compiler = etna_compiler_create(pscreen->get_name(pscreen));
+   if (!screen->compiler)
+      return false;
+
+   return true;
+}
+
+void
+etna_shader_screen_fini(struct pipe_screen *pscreen)
+{
+   struct etna_screen *screen = etna_screen(pscreen);
+
+   etna_compiler_destroy(screen->compiler);
+}

src/gallium/drivers/etnaviv/etnaviv_shader.h

@@ -100,4 +100,10 @@ etna_shader_variant(struct etna_shader *shader, struct etna_shader_key key,
 void
 etna_shader_init(struct pipe_context *pctx);
 
+bool
+etna_shader_screen_init(struct pipe_screen *pscreen);
+
+void
+etna_shader_screen_fini(struct pipe_screen *pscreen);
+
 #endif