etnaviv: introduce struct etna_compiler

This struct will be used to for state saved across compiler
invocations.

Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5996>

src/gallium/drivers/etnaviv/Makefile.sources

@@ -16,6 +16,7 @@ C_SOURCES :=  \
 	etnaviv_blt.h \
 	etnaviv_clear_blit.c \
 	etnaviv_clear_blit.h \
+	etnaviv_compiler.c \
 	etnaviv_compiler.h \
 	etnaviv_compiler_nir.c \
 	etnaviv_compiler_nir_emit.c \

src/gallium/drivers/etnaviv/etnaviv_compiler.c

@@ -0,0 +1,42 @@
+/*
+ * Copyright (c) 2020 Etnaviv Project
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sub license,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Christian Gmeiner <christian.gmeiner@gmail.com>
+ */
+
+#include "etnaviv_compiler.h"
+#include "util/ralloc.h"
+
+struct etna_compiler *
+etna_compiler_create(void)
+{
+   struct etna_compiler *compiler = rzalloc(NULL, struct etna_compiler);
+
+   return compiler;
+}
+
+void
+etna_compiler_destroy(const struct etna_compiler *compiler)
+{
+   ralloc_free((void *)compiler);
+}

src/gallium/drivers/etnaviv/etnaviv_compiler.h

@@ -44,6 +44,13 @@
 #define ETNA_MAX_DEPTH (32)
 #define ETNA_MAX_INSTRUCTIONS (2048)
 
+/**
+ * Compiler state saved across compiler invocations, for any expensive global
+ * setup.
+ */
+struct etna_compiler {
+};
+
 /* compiler output per input/output */
 struct etna_shader_inout {
    int reg; /* native register */
@@ -124,6 +131,12 @@ struct etna_shader_link_info {
    int pcoord_varying_comp_ofs;
 };
 
+struct etna_compiler *
+etna_compiler_create(void);
+
+void
+etna_compiler_destroy(const struct etna_compiler *compiler);
+
 bool
 etna_compile_shader(struct etna_shader_variant *shader);
 

src/gallium/drivers/etnaviv/etnaviv_screen.c

@@ -88,6 +88,9 @@ etna_screen_destroy(struct pipe_screen *pscreen)
    if (screen->perfmon)
       etna_perfmon_del(screen->perfmon);
 
+   if (screen->compiler)
+      etna_compiler_destroy(screen->compiler);
+
    if (screen->pipe)
       etna_pipe_del(screen->pipe);
 
@@ -1041,6 +1044,10 @@ etna_screen_create(struct etna_device *dev, struct etna_gpu *gpu,
    pscreen->is_format_supported = etna_screen_is_format_supported;
    pscreen->query_dmabuf_modifiers = etna_screen_query_dmabuf_modifiers;
 
+   screen->compiler = etna_compiler_create();
+   if (!screen->compiler)
+      goto fail;
+
    etna_fence_screen_init(pscreen);
    etna_query_screen_init(pscreen);
    etna_resource_screen_init(pscreen);

src/gallium/drivers/etnaviv/etnaviv_screen.h

@@ -85,6 +85,7 @@ struct etna_screen {
 
    uint32_t drm_version;
 
+   struct etna_compiler *compiler;
    nir_shader_compiler_options options;
 };
 

src/gallium/drivers/etnaviv/meson.build

@@ -35,6 +35,7 @@ files_etnaviv = files(
   'etnaviv_blt.h',
   'etnaviv_clear_blit.c',
   'etnaviv_clear_blit.h',
+  'etnaviv_compiler.c',
   'etnaviv_compiler.h',
   'etnaviv_compiler_nir.c',
   'etnaviv_compiler_nir_emit.c',