[Mesa-dev] [PATCH] Revert "compiler/glsl: handle case where we have multiple users for types"

Timothy Arceri tarceri at itsqueeze.com
Thu Apr 18 05:05:17 UTC 2019


This reverts commit 624789e3708c87ea2a4c8d2266266b489b421cba.

It caused 400+ piglit tests to crash on radeonsi, I haven't been able
to track down the reason yet.
---
 src/amd/vulkan/radv_device.c             |  3 ---
 src/compiler/glsl/glsl_parser_extras.cpp | 20 ++-------------
 src/compiler/glsl/glsl_parser_extras.h   |  2 --
 src/compiler/glsl/standalone.cpp         |  3 +--
 src/compiler/glsl_types.cpp              | 32 ++++--------------------
 src/compiler/glsl_types.h                | 10 +++-----
 src/intel/vulkan/anv_device.c            |  3 ---
 src/mesa/main/context.c                  |  4 ---
 8 files changed, 11 insertions(+), 66 deletions(-)

diff --git a/src/amd/vulkan/radv_device.c b/src/amd/vulkan/radv_device.c
index 96c6543141e..13021a9f2da 100644
--- a/src/amd/vulkan/radv_device.c
+++ b/src/amd/vulkan/radv_device.c
@@ -48,7 +48,6 @@
 #include "util/build_id.h"
 #include "util/debug.h"
 #include "util/mesa-sha1.h"
-#include "compiler/glsl_types.h"
 
 static int
 radv_device_get_cache_uuid(enum radeon_family family, void *uuid)
@@ -583,7 +582,6 @@ VkResult radv_CreateInstance(
 	}
 
 	_mesa_locale_init();
-	glsl_type_singleton_init_or_ref();
 
 	VG(VALGRIND_CREATE_MEMPOOL(instance, 0, false));
 
@@ -609,7 +607,6 @@ void radv_DestroyInstance(
 
 	VG(VALGRIND_DESTROY_MEMPOOL(instance));
 
-	glsl_type_singleton_decref();
 	_mesa_locale_fini();
 
 	vk_debug_report_instance_destroy(&instance->debug_report_callbacks);
diff --git a/src/compiler/glsl/glsl_parser_extras.cpp b/src/compiler/glsl/glsl_parser_extras.cpp
index b30c638cdc9..0ffad2d25a0 100644
--- a/src/compiler/glsl/glsl_parser_extras.cpp
+++ b/src/compiler/glsl/glsl_parser_extras.cpp
@@ -2324,24 +2324,6 @@ do_common_optimization(exec_list *ir, bool linked,
 
 extern "C" {
 
-/**
- * To be called at GL context ctor.
- */
-void
-_mesa_init_shader_compiler_types(void)
-{
-   glsl_type_singleton_init_or_ref();
-}
-
-/**
- * To be called at GL context dtor.
- */
-void
-_mesa_destroy_shader_compiler_types(void)
-{
-   glsl_type_singleton_decref();
-}
-
 /**
  * To be called at GL teardown time, this frees compiler datastructures.
  *
@@ -2353,6 +2335,8 @@ void
 _mesa_destroy_shader_compiler(void)
 {
    _mesa_destroy_shader_compiler_caches();
+
+   _mesa_glsl_release_types();
 }
 
 /**
diff --git a/src/compiler/glsl/glsl_parser_extras.h b/src/compiler/glsl/glsl_parser_extras.h
index f92d2160aac..8646ba6cadd 100644
--- a/src/compiler/glsl/glsl_parser_extras.h
+++ b/src/compiler/glsl/glsl_parser_extras.h
@@ -1010,8 +1010,6 @@ extern int glcpp_preprocess(void *ctx, const char **shader, char **info_log,
                             struct _mesa_glsl_parse_state *state,
                             struct gl_context *gl_ctx);
 
-extern void _mesa_init_shader_compiler_types(void);
-extern void _mesa_destroy_shader_compiler_types(void);
 extern void _mesa_destroy_shader_compiler(void);
 extern void _mesa_destroy_shader_compiler_caches(void);
 
diff --git a/src/compiler/glsl/standalone.cpp b/src/compiler/glsl/standalone.cpp
index 7b3d358ca96..942b9ee4986 100644
--- a/src/compiler/glsl/standalone.cpp
+++ b/src/compiler/glsl/standalone.cpp
@@ -132,7 +132,6 @@ static void
 initialize_context(struct gl_context *ctx, gl_api api)
 {
    initialize_context_to_defaults(ctx, api);
-   glsl_type_singleton_init_or_ref();
 
    /* The standalone compiler needs to claim support for almost
     * everything in order to compile the built-in functions.
@@ -618,6 +617,6 @@ standalone_compiler_cleanup(struct gl_shader_program *whole_program)
    delete whole_program->FragDataIndexBindings;
 
    ralloc_free(whole_program);
-   glsl_type_singleton_decref();
+   _mesa_glsl_release_types();
    _mesa_glsl_release_builtin_functions();
 }
diff --git a/src/compiler/glsl_types.cpp b/src/compiler/glsl_types.cpp
index 9938b3df450..66241b34281 100644
--- a/src/compiler/glsl_types.cpp
+++ b/src/compiler/glsl_types.cpp
@@ -37,12 +37,6 @@ hash_table *glsl_type::interface_types = NULL;
 hash_table *glsl_type::function_types = NULL;
 hash_table *glsl_type::subroutine_types = NULL;
 
-/* There might be multiple users for types (e.g. application using OpenGL
- * and Vulkan simultanously or app using multiple Vulkan instances). Counter
- * is used to make sure we don't release the types if a user is still present.
- */
-static uint32_t glsl_type_users = 0;
-
 glsl_type::glsl_type(GLenum gl_type,
                      glsl_base_type base_type, unsigned vector_elements,
                      unsigned matrix_columns, const char *name,
@@ -475,26 +469,12 @@ hash_free_type_function(struct hash_entry *entry)
 }
 
 void
-glsl_type_singleton_init_or_ref()
+_mesa_glsl_release_types(void)
 {
-   mtx_lock(&glsl_type::hash_mutex);
-   glsl_type_users++;
-   mtx_unlock(&glsl_type::hash_mutex);
-}
-
-void
-glsl_type_singleton_decref()
-{
-   mtx_lock(&glsl_type::hash_mutex);
-
-   assert(glsl_type_users > 0);
-
-   /* Do not release glsl_types if they are still used. */
-   if (--glsl_type_users) {
-      mtx_unlock(&glsl_type::hash_mutex);
-      return;
-   }
-
+   /* Should only be called during atexit (either when unloading shared
+    * object, or if process terminates), so no mutex-locking should be
+    * necessary.
+    */
    if (glsl_type::explicit_matrix_types != NULL) {
       _mesa_hash_table_destroy(glsl_type::explicit_matrix_types,
                                hash_free_type_function);
@@ -525,8 +505,6 @@ glsl_type_singleton_decref()
       _mesa_hash_table_destroy(glsl_type::subroutine_types, hash_free_type_function);
       glsl_type::subroutine_types = NULL;
    }
-
-   mtx_unlock(&glsl_type::hash_mutex);
 }
 
 
diff --git a/src/compiler/glsl_types.h b/src/compiler/glsl_types.h
index 2fd93f7b945..dd9ae657019 100644
--- a/src/compiler/glsl_types.h
+++ b/src/compiler/glsl_types.h
@@ -47,13 +47,10 @@ struct _mesa_glsl_parse_state;
 struct glsl_symbol_table;
 
 extern void
-glsl_type_singleton_init_or_ref();
-
-extern void
-glsl_type_singleton_decref();
+_mesa_glsl_initialize_types(struct _mesa_glsl_parse_state *state);
 
 extern void
-_mesa_glsl_initialize_types(struct _mesa_glsl_parse_state *state);
+_mesa_glsl_release_types(void);
 
 void encode_type_to_blob(struct blob *blob, const struct glsl_type *type);
 
@@ -1065,9 +1062,8 @@ private:
     * data.
     */
    /*@{*/
-   friend void glsl_type_singleton_init_or_ref(void);
-   friend void glsl_type_singleton_decref(void);
    friend void _mesa_glsl_initialize_types(struct _mesa_glsl_parse_state *);
+   friend void _mesa_glsl_release_types(void);
    /*@}*/
 };
 
diff --git a/src/intel/vulkan/anv_device.c b/src/intel/vulkan/anv_device.c
index 74d4eebebc2..2687c4699ca 100644
--- a/src/intel/vulkan/anv_device.c
+++ b/src/intel/vulkan/anv_device.c
@@ -41,7 +41,6 @@
 #include "git_sha1.h"
 #include "vk_util.h"
 #include "common/gen_defines.h"
-#include "compiler/glsl_types.h"
 
 #include "genxml/gen7_pack.h"
 
@@ -717,7 +716,6 @@ VkResult anv_CreateInstance(
       env_var_as_boolean("ANV_ENABLE_PIPELINE_CACHE", true);
 
    _mesa_locale_init();
-   glsl_type_singleton_init_or_ref();
 
    VG(VALGRIND_CREATE_MEMPOOL(instance, 0, false));
 
@@ -748,7 +746,6 @@ void anv_DestroyInstance(
 
    vk_debug_report_instance_destroy(&instance->debug_report_callbacks);
 
-   glsl_type_singleton_decref();
    _mesa_locale_fini();
 
    vk_free(&instance->alloc, instance);
diff --git a/src/mesa/main/context.c b/src/mesa/main/context.c
index 7300d2f3c46..e5a89d9c2fc 100644
--- a/src/mesa/main/context.c
+++ b/src/mesa/main/context.c
@@ -1196,8 +1196,6 @@ _mesa_initialize_context(struct gl_context *ctx,
    /* misc one-time initializations */
    one_time_init(ctx);
 
-   _mesa_init_shader_compiler_types();
-
    /* Plug in driver functions and context pointer here.
     * This is important because when we call alloc_shared_state() below
     * we'll call ctx->Driver.NewTextureObject() to create the default
@@ -1385,8 +1383,6 @@ _mesa_free_context_data( struct gl_context *ctx )
 
    free(ctx->VersionString);
 
-   _mesa_destroy_shader_compiler_types();
-
    /* unbind the context if it's currently bound */
    if (ctx == _mesa_get_current_context()) {
       _mesa_make_current(NULL, NULL, NULL);
-- 
2.20.1



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