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IABSD.fr/xenocara/lib/mesa/src/amd/vulkan/radv_instance.c

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  • Author : jsg
    Date : 2025-06-05 11:23:11
    Hash : 67d6f117
    Message : Import Mesa 25.0.7

  • lib/mesa/src/amd/vulkan/radv_instance.c
  • /*
     * Copyright © 2016 Red Hat.
     * Copyright © 2016 Bas Nieuwenhuizen
     *
     * based in part on anv driver which is:
     * Copyright © 2015 Intel Corporation
     *
     * SPDX-License-Identifier: MIT
     */
    
    #ifdef HAVE_VALGRIND
    #include <memcheck.h>
    #include <valgrind.h>
    #define VG(x) x
    #else
    #define VG(x) ((void)0)
    #endif
    
    #include "radv_instance.h"
    #include "radv_debug.h"
    #include "radv_entrypoints.h"
    #include "radv_wsi.h"
    
    #include "util/driconf.h"
    
    #include "vk_instance.h"
    #include "vk_log.h"
    #include "vk_util.h"
    
    static const struct debug_control radv_debug_options[] = {{"nofastclears", RADV_DEBUG_NO_FAST_CLEARS},
                                                              {"nodcc", RADV_DEBUG_NO_DCC},
                                                              {"shaders", RADV_DEBUG_DUMP_SHADERS},
                                                              {"nocache", RADV_DEBUG_NO_CACHE},
                                                              {"shaderstats", RADV_DEBUG_DUMP_SHADER_STATS},
                                                              {"nohiz", RADV_DEBUG_NO_HIZ},
                                                              {"nocompute", RADV_DEBUG_NO_COMPUTE_QUEUE},
                                                              {"allbos", RADV_DEBUG_ALL_BOS},
                                                              {"noibs", RADV_DEBUG_NO_IBS},
                                                              {"spirv", RADV_DEBUG_DUMP_SPIRV},
                                                              {"zerovram", RADV_DEBUG_ZERO_VRAM},
                                                              {"syncshaders", RADV_DEBUG_SYNC_SHADERS},
                                                              {"preoptir", RADV_DEBUG_DUMP_PREOPT_IR},
                                                              {"nodynamicbounds", RADV_DEBUG_NO_DYNAMIC_BOUNDS},
                                                              {"info", RADV_DEBUG_INFO},
                                                              {"startup", RADV_DEBUG_STARTUP},
                                                              {"checkir", RADV_DEBUG_CHECKIR},
                                                              {"nobinning", RADV_DEBUG_NOBINNING},
                                                              {"nongg", RADV_DEBUG_NO_NGG},
                                                              {"metashaders", RADV_DEBUG_DUMP_META_SHADERS},
                                                              {"llvm", RADV_DEBUG_LLVM},
                                                              {"forcecompress", RADV_DEBUG_FORCE_COMPRESS},
                                                              {"hang", RADV_DEBUG_HANG},
                                                              {"img", RADV_DEBUG_IMG},
                                                              {"noumr", RADV_DEBUG_NO_UMR},
                                                              {"invariantgeom", RADV_DEBUG_INVARIANT_GEOM},
                                                              {"splitfma", RADV_DEBUG_SPLIT_FMA},
                                                              {"nodisplaydcc", RADV_DEBUG_NO_DISPLAY_DCC},
                                                              {"notccompatcmask", RADV_DEBUG_NO_TC_COMPAT_CMASK},
                                                              {"novrsflatshading", RADV_DEBUG_NO_VRS_FLAT_SHADING},
                                                              {"noatocdithering", RADV_DEBUG_NO_ATOC_DITHERING},
                                                              {"nonggc", RADV_DEBUG_NO_NGGC},
                                                              {"prologs", RADV_DEBUG_DUMP_PROLOGS},
                                                              {"nodma", RADV_DEBUG_NO_DMA_BLIT},
                                                              {"epilogs", RADV_DEBUG_DUMP_EPILOGS},
                                                              {"nofmask", RADV_DEBUG_NO_FMASK},
                                                              {"shadowregs", RADV_DEBUG_SHADOW_REGS},
                                                              {"extra_md", RADV_DEBUG_EXTRA_MD},
                                                              {"nogpl", RADV_DEBUG_NO_GPL},
                                                              {"videoarraypath", RADV_DEBUG_VIDEO_ARRAY_PATH},
                                                              {"nort", RADV_DEBUG_NO_RT},
                                                              {"nomeshshader", RADV_DEBUG_NO_MESH_SHADER},
                                                              {"nongg_gs", RADV_DEBUG_NO_NGG_GS},
                                                              {"noeso", RADV_DEBUG_NO_ESO},
                                                              {"psocachestats", RADV_DEBUG_PSO_CACHE_STATS},
                                                              {"nirdebuginfo", RADV_DEBUG_NIR_DEBUG_INFO},
                                                              {"dump_trap_handler", RADV_DEBUG_DUMP_TRAP_HANDLER},
                                                              {"vs", RADV_DEBUG_DUMP_VS},
                                                              {"tcs", RADV_DEBUG_DUMP_TCS},
                                                              {"tes", RADV_DEBUG_DUMP_TES},
                                                              {"gs", RADV_DEBUG_DUMP_GS},
                                                              {"ps", RADV_DEBUG_DUMP_PS},
                                                              {"task", RADV_DEBUG_DUMP_TASK},
                                                              {"mesh", RADV_DEBUG_DUMP_MESH},
                                                              {"cs", RADV_DEBUG_DUMP_CS},
                                                              {"nir", RADV_DEBUG_DUMP_NIR},
                                                              {"asm", RADV_DEBUG_DUMP_ASM},
                                                              {"ir", RADV_DEBUG_DUMP_BACKEND_IR},
                                                              {NULL, 0}};
    
    const char *
    radv_get_debug_option_name(int id)
    {
       assert(id < ARRAY_SIZE(radv_debug_options));
       for (uint32_t i = 0; i < ARRAY_SIZE(radv_debug_options); i++) {
          if (radv_debug_options[i].flag == (1ull << id))
             return radv_debug_options[i].string;
       }
       return NULL;
    }
    
    static const struct debug_control radv_perftest_options[] = {{"localbos", RADV_PERFTEST_LOCAL_BOS},
                                                                 {"dccmsaa", RADV_PERFTEST_DCC_MSAA},
                                                                 {"bolist", RADV_PERFTEST_BO_LIST},
                                                                 {"cswave32", RADV_PERFTEST_CS_WAVE_32},
                                                                 {"pswave32", RADV_PERFTEST_PS_WAVE_32},
                                                                 {"gewave32", RADV_PERFTEST_GE_WAVE_32},
                                                                 {"nosam", RADV_PERFTEST_NO_SAM},
                                                                 {"sam", RADV_PERFTEST_SAM},
                                                                 {"nggc", RADV_PERFTEST_NGGC},
                                                                 {"emulate_rt", RADV_PERFTEST_EMULATE_RT},
                                                                 {"rtwave64", RADV_PERFTEST_RT_WAVE_64},
                                                                 {"video_decode", RADV_PERFTEST_VIDEO_DECODE},
                                                                 {"dmashaders", RADV_PERFTEST_DMA_SHADERS},
                                                                 {"transfer_queue", RADV_PERFTEST_TRANSFER_QUEUE},
                                                                 {"nircache", RADV_PERFTEST_NIR_CACHE},
                                                                 {"rtwave32", RADV_PERFTEST_RT_WAVE_32},
                                                                 {"video_encode", RADV_PERFTEST_VIDEO_ENCODE},
                                                                 {NULL, 0}};
    
    static const struct debug_control radv_trap_excp_options[] = {
       {"mem_viol", RADV_PERFTEST_LOCAL_BOS},
       {"float_div_by_zero", RADV_PERFTEST_DCC_MSAA},
       {"float_overflow", RADV_PERFTEST_BO_LIST},
       {"float_underflow", RADV_PERFTEST_CS_WAVE_32},
       {NULL, 0},
    };
    
    const char *
    radv_get_perftest_option_name(int id)
    {
       assert(id < ARRAY_SIZE(radv_perftest_options));
       for (uint32_t i = 0; i < ARRAY_SIZE(radv_perftest_options); i++) {
          if (radv_perftest_options[i].flag == (1ull << id))
             return radv_perftest_options[i].string;
       }
       return NULL;
    }
    
    static const struct debug_control trace_options[] = {
       {"rgp", RADV_TRACE_MODE_RGP},
       {"rra", RADV_TRACE_MODE_RRA},
       {"ctxroll", RADV_TRACE_MODE_CTX_ROLLS},
       {NULL, 0},
    };
    
    // clang-format off
    static const driOptionDescription radv_dri_options[] = {
       DRI_CONF_SECTION_PERFORMANCE
          DRI_CONF_ADAPTIVE_SYNC(true)
          DRI_CONF_VK_X11_OVERRIDE_MIN_IMAGE_COUNT(0)
          DRI_CONF_VK_X11_STRICT_IMAGE_COUNT(false)
          DRI_CONF_VK_X11_ENSURE_MIN_IMAGE_COUNT(false)
          DRI_CONF_VK_KHR_PRESENT_WAIT(false)
          DRI_CONF_VK_XWAYLAND_WAIT_READY(false)
          DRI_CONF_RADV_REPORT_LLVM9_VERSION_STRING(false)
          DRI_CONF_RADV_ENABLE_MRT_OUTPUT_NAN_FIXUP(false)
          DRI_CONF_RADV_DISABLE_SHRINK_IMAGE_STORE(false)
          DRI_CONF_RADV_NO_DYNAMIC_BOUNDS(false)
          DRI_CONF_RADV_OVERRIDE_UNIFORM_OFFSET_ALIGNMENT(0)
          DRI_CONF_RADV_CLEAR_LDS(false)
          DRI_CONF_RADV_DISABLE_NGG_GS(false)
       DRI_CONF_SECTION_END
    
       DRI_CONF_SECTION_DEBUG
          DRI_CONF_OVERRIDE_VRAM_SIZE()
          DRI_CONF_VK_WSI_FORCE_BGRA8_UNORM_FIRST(false)
          DRI_CONF_VK_WSI_FORCE_SWAPCHAIN_TO_CURRENT_EXTENT(false)
          DRI_CONF_VK_X11_IGNORE_SUBOPTIMAL(false)
          DRI_CONF_VK_REQUIRE_ETC2(false)
          DRI_CONF_VK_REQUIRE_ASTC(false)
          DRI_CONF_RADV_ZERO_VRAM(false)
          DRI_CONF_RADV_INVARIANT_GEOM(false)
          DRI_CONF_RADV_SPLIT_FMA(false)
          DRI_CONF_RADV_DISABLE_TC_COMPAT_HTILE_GENERAL(false)
          DRI_CONF_RADV_DISABLE_DCC(false)
          DRI_CONF_RADV_DISABLE_DCC_MIPS(false)
          DRI_CONF_RADV_DISABLE_DCC_STORES(false)
          DRI_CONF_RADV_DISABLE_ANISO_SINGLE_LEVEL(false)
          DRI_CONF_RADV_DISABLE_TRUNC_COORD(false)
          DRI_CONF_RADV_DISABLE_SINKING_LOAD_INPUT_FS(false)
          DRI_CONF_RADV_DISABLE_DEPTH_STORAGE(false)
          DRI_CONF_RADV_FLUSH_BEFORE_QUERY_COPY(false)
          DRI_CONF_RADV_ENABLE_UNIFIED_HEAP_ON_APU(false)
          DRI_CONF_RADV_TEX_NON_UNIFORM(false)
          DRI_CONF_RADV_FLUSH_BEFORE_TIMESTAMP_WRITE(false)
          DRI_CONF_RADV_RT_WAVE64(false)
          DRI_CONF_RADV_LEGACY_SPARSE_BINDING(false)
          DRI_CONF_RADV_FORCE_PSTATE_PEAK_GFX11_DGPU(false)
          DRI_CONF_RADV_OVERRIDE_GRAPHICS_SHADER_VERSION(0)
          DRI_CONF_RADV_OVERRIDE_COMPUTE_SHADER_VERSION(0)
          DRI_CONF_RADV_OVERRIDE_RAY_TRACING_SHADER_VERSION(0)
          DRI_CONF_RADV_SSBO_NON_UNIFORM(false)
          DRI_CONF_RADV_LOWER_TERMINATE_TO_DISCARD(false)
          DRI_CONF_RADV_APP_LAYER()
          DRI_CONF_RADV_FORCE_64K_SPARSE_ALIGNMENT(false)
          DRI_CONF_RADV_DISABLE_HIZ_HIS_GFX12(false)
       DRI_CONF_SECTION_END
    };
    // clang-format on
    
    static void
    radv_init_dri_options(struct radv_instance *instance)
    {
       driParseOptionInfo(&instance->drirc.available_options, radv_dri_options, ARRAY_SIZE(radv_dri_options));
       driParseConfigFiles(&instance->drirc.options, &instance->drirc.available_options, 0, "radv", NULL, NULL,
                           instance->vk.app_info.app_name, instance->vk.app_info.app_version,
                           instance->vk.app_info.engine_name, instance->vk.app_info.engine_version);
    
       instance->drirc.enable_mrt_output_nan_fixup =
          driQueryOptionb(&instance->drirc.options, "radv_enable_mrt_output_nan_fixup");
    
       instance->drirc.disable_shrink_image_store =
          driQueryOptionb(&instance->drirc.options, "radv_disable_shrink_image_store");
    
       instance->drirc.disable_tc_compat_htile_in_general =
          driQueryOptionb(&instance->drirc.options, "radv_disable_tc_compat_htile_general");
    
       if (driQueryOptionb(&instance->drirc.options, "radv_no_dynamic_bounds"))
          instance->debug_flags |= RADV_DEBUG_NO_DYNAMIC_BOUNDS;
    
       if (driQueryOptionb(&instance->drirc.options, "radv_invariant_geom"))
          instance->debug_flags |= RADV_DEBUG_INVARIANT_GEOM;
    
       if (driQueryOptionb(&instance->drirc.options, "radv_split_fma"))
          instance->debug_flags |= RADV_DEBUG_SPLIT_FMA;
    
       if (driQueryOptionb(&instance->drirc.options, "radv_disable_dcc"))
          instance->debug_flags |= RADV_DEBUG_NO_DCC;
    
       if (driQueryOptionb(&instance->drirc.options, "radv_disable_ngg_gs"))
          instance->debug_flags |= RADV_DEBUG_NO_NGG_GS;
    
       instance->drirc.clear_lds = driQueryOptionb(&instance->drirc.options, "radv_clear_lds");
    
       instance->drirc.zero_vram = driQueryOptionb(&instance->drirc.options, "radv_zero_vram");
    
       instance->drirc.disable_aniso_single_level =
          driQueryOptionb(&instance->drirc.options, "radv_disable_aniso_single_level");
    
       instance->drirc.disable_trunc_coord = driQueryOptionb(&instance->drirc.options, "radv_disable_trunc_coord");
    
       instance->drirc.disable_sinking_load_input_fs =
          driQueryOptionb(&instance->drirc.options, "radv_disable_sinking_load_input_fs");
    
       instance->drirc.disable_depth_storage = driQueryOptionb(&instance->drirc.options, "radv_disable_depth_storage");
    
       instance->drirc.flush_before_query_copy = driQueryOptionb(&instance->drirc.options, "radv_flush_before_query_copy");
    
       instance->drirc.enable_unified_heap_on_apu =
          driQueryOptionb(&instance->drirc.options, "radv_enable_unified_heap_on_apu");
    
       instance->drirc.tex_non_uniform = driQueryOptionb(&instance->drirc.options, "radv_tex_non_uniform");
    
       instance->drirc.ssbo_non_uniform = driQueryOptionb(&instance->drirc.options, "radv_ssbo_non_uniform");
    
       instance->drirc.app_layer = driQueryOptionstr(&instance->drirc.options, "radv_app_layer");
    
       instance->drirc.flush_before_timestamp_write =
          driQueryOptionb(&instance->drirc.options, "radv_flush_before_timestamp_write");
    
       instance->drirc.force_rt_wave64 = driQueryOptionb(&instance->drirc.options, "radv_rt_wave64");
    
       instance->drirc.legacy_sparse_binding = driQueryOptionb(&instance->drirc.options, "radv_legacy_sparse_binding");
    
       instance->drirc.force_pstate_peak_gfx11_dgpu =
          driQueryOptionb(&instance->drirc.options, "radv_force_pstate_peak_gfx11_dgpu");
    
       instance->drirc.override_graphics_shader_version =
          driQueryOptioni(&instance->drirc.options, "radv_override_graphics_shader_version");
       instance->drirc.override_compute_shader_version =
          driQueryOptioni(&instance->drirc.options, "radv_override_compute_shader_version");
       instance->drirc.override_ray_tracing_shader_version =
          driQueryOptioni(&instance->drirc.options, "radv_override_ray_tracing_shader_version");
    
       instance->drirc.override_vram_size = driQueryOptioni(&instance->drirc.options, "override_vram_size");
    
       instance->drirc.enable_khr_present_wait = driQueryOptionb(&instance->drirc.options, "vk_khr_present_wait");
    
       instance->drirc.override_uniform_offset_alignment =
          driQueryOptioni(&instance->drirc.options, "radv_override_uniform_offset_alignment");
    
       instance->drirc.report_llvm9_version_string =
          driQueryOptionb(&instance->drirc.options, "radv_report_llvm9_version_string");
    
       instance->drirc.vk_require_etc2 = driQueryOptionb(&instance->drirc.options, "vk_require_etc2");
       instance->drirc.vk_require_astc = driQueryOptionb(&instance->drirc.options, "vk_require_astc");
    
       instance->drirc.disable_dcc_mips = driQueryOptionb(&instance->drirc.options, "radv_disable_dcc_mips");
       instance->drirc.disable_dcc_stores = driQueryOptionb(&instance->drirc.options, "radv_disable_dcc_stores");
    
       instance->drirc.lower_terminate_to_discard =
          driQueryOptionb(&instance->drirc.options, "radv_lower_terminate_to_discard");
    
       instance->drirc.force_64k_sparse_alignment = driQueryOptionb(&instance->drirc.options, "radv_force_64k_sparse_alignment");
    
       instance->drirc.disable_hiz_his_gfx12 = driQueryOptionb(&instance->drirc.options, "radv_disable_hiz_his_gfx12");
    }
    
    static const struct vk_instance_extension_table radv_instance_extensions_supported = {
       .KHR_device_group_creation = true,
       .KHR_external_fence_capabilities = true,
       .KHR_external_memory_capabilities = true,
       .KHR_external_semaphore_capabilities = true,
       .KHR_get_physical_device_properties2 = true,
       .EXT_debug_report = true,
       .EXT_debug_utils = true,
    
    #ifdef RADV_USE_WSI_PLATFORM
       .KHR_get_surface_capabilities2 = true,
       .KHR_surface = true,
       .KHR_surface_protected_capabilities = true,
       .EXT_surface_maintenance1 = true,
       .EXT_swapchain_colorspace = true,
    #endif
    #ifdef VK_USE_PLATFORM_WAYLAND_KHR
       .KHR_wayland_surface = true,
    #endif
    #ifdef VK_USE_PLATFORM_XCB_KHR
       .KHR_xcb_surface = true,
    #endif
    #ifdef VK_USE_PLATFORM_XLIB_KHR
       .KHR_xlib_surface = true,
    #endif
    #ifdef VK_USE_PLATFORM_XLIB_XRANDR_EXT
       .EXT_acquire_xlib_display = true,
    #endif
    #ifdef VK_USE_PLATFORM_DISPLAY_KHR
       .KHR_display = true,
       .KHR_get_display_properties2 = true,
       .EXT_direct_mode_display = true,
       .EXT_display_surface_counter = true,
       .EXT_acquire_drm_display = true,
    #endif
    #ifndef VK_USE_PLATFORM_WIN32_KHR
       .EXT_headless_surface = true,
    #endif
    };
    
    static enum radeon_ctx_pstate
    radv_parse_pstate(const char* str)
    {
       if (!strcmp(str, "peak")) {
          return RADEON_CTX_PSTATE_PEAK;
       } else if (!strcmp(str, "standard")) {
          return RADEON_CTX_PSTATE_STANDARD;
       } else if (!strcmp(str, "min_sclk")) {
          return RADEON_CTX_PSTATE_MIN_SCLK;
       } else if (!strcmp(str, "min_mclk")) {
          return RADEON_CTX_PSTATE_MIN_MCLK;
       } else {
          return RADEON_CTX_PSTATE_NONE;
       }
    }
    
    VKAPI_ATTR VkResult VKAPI_CALL
    radv_CreateInstance(const VkInstanceCreateInfo *pCreateInfo, const VkAllocationCallbacks *pAllocator,
                        VkInstance *pInstance)
    {
       struct radv_instance *instance;
       VkResult result;
    
       if (!pAllocator)
          pAllocator = vk_default_allocator();
    
       instance = vk_zalloc(pAllocator, sizeof(*instance), 8, VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE);
       if (!instance)
          return vk_error(NULL, VK_ERROR_OUT_OF_HOST_MEMORY);
    
       struct vk_instance_dispatch_table dispatch_table;
       vk_instance_dispatch_table_from_entrypoints(&dispatch_table, &radv_instance_entrypoints, true);
       vk_instance_dispatch_table_from_entrypoints(&dispatch_table, &wsi_instance_entrypoints, false);
    
       result =
          vk_instance_init(&instance->vk, &radv_instance_extensions_supported, &dispatch_table, pCreateInfo, pAllocator);
       if (result != VK_SUCCESS) {
          vk_free(pAllocator, instance);
          return vk_error(NULL, result);
       }
    
       vk_instance_add_driver_trace_modes(&instance->vk, trace_options);
    
       simple_mtx_init(&instance->shader_dump_mtx, mtx_plain);
    
       instance->debug_flags = parse_debug_string(getenv("RADV_DEBUG"), radv_debug_options);
       instance->perftest_flags = parse_debug_string(getenv("RADV_PERFTEST"), radv_perftest_options);
       instance->trap_excp_flags = parse_debug_string(getenv("RADV_TRAP_HANDLER_EXCP"), radv_trap_excp_options);
       instance->profile_pstate = radv_parse_pstate(debug_get_option("RADV_PROFILE_PSTATE", "peak"));
    
       const uint64_t shader_stage_flags = RADV_DEBUG_DUMP_VS | RADV_DEBUG_DUMP_TCS | RADV_DEBUG_DUMP_TES |
                                           RADV_DEBUG_DUMP_GS | RADV_DEBUG_DUMP_PS | RADV_DEBUG_DUMP_TASK |
                                           RADV_DEBUG_DUMP_MESH | RADV_DEBUG_DUMP_CS;
    
       const uint64_t compilation_stage_flags = RADV_DEBUG_DUMP_SPIRV | RADV_DEBUG_DUMP_NIR | RADV_DEBUG_DUMP_PREOPT_IR |
                                                RADV_DEBUG_DUMP_BACKEND_IR | RADV_DEBUG_DUMP_ASM;
    
       if ((instance->debug_flags & shader_stage_flags) && !(instance->debug_flags & compilation_stage_flags)) {
          /* When shader stages are specified but compilation stages aren't:
           * use a default set of compilation stages.
           */
          instance->debug_flags |= RADV_DEBUG_DUMP_NIR | RADV_DEBUG_DUMP_BACKEND_IR | RADV_DEBUG_DUMP_ASM;
       } else if (!(instance->debug_flags & shader_stage_flags) && (instance->debug_flags & compilation_stage_flags)) {
          /* When compilation stages are specified but shader stages aren't:
           * dump all shader stages.
           */
          instance->debug_flags |= shader_stage_flags;
       }
    
       /* When RADV_FORCE_FAMILY is set, the driver creates a null
        * device that allows to test the compiler without having an
        * AMDGPU instance.
        */
       if (getenv("RADV_FORCE_FAMILY"))
          instance->vk.physical_devices.enumerate = create_null_physical_device;
       else
          instance->vk.physical_devices.try_create_for_drm = create_drm_physical_device;
    
       instance->vk.physical_devices.destroy = radv_physical_device_destroy;
    
       if (instance->debug_flags & RADV_DEBUG_STARTUP)
          fprintf(stderr, "radv: info: Created an instance.\n");
    
       VG(VALGRIND_CREATE_MEMPOOL(instance, 0, false));
    
       radv_init_dri_options(instance);
    
       *pInstance = radv_instance_to_handle(instance);
    
       return VK_SUCCESS;
    }
    
    VKAPI_ATTR void VKAPI_CALL
    radv_DestroyInstance(VkInstance _instance, const VkAllocationCallbacks *pAllocator)
    {
       VK_FROM_HANDLE(radv_instance, instance, _instance);
    
       if (!instance)
          return;
    
       VG(VALGRIND_DESTROY_MEMPOOL(instance));
    
       simple_mtx_destroy(&instance->shader_dump_mtx);
    
       driDestroyOptionCache(&instance->drirc.options);
       driDestroyOptionInfo(&instance->drirc.available_options);
    
       vk_instance_finish(&instance->vk);
       vk_free(&instance->vk.alloc, instance);
    }
    
    VKAPI_ATTR VkResult VKAPI_CALL
    radv_EnumerateInstanceExtensionProperties(const char *pLayerName, uint32_t *pPropertyCount,
                                              VkExtensionProperties *pProperties)
    {
       if (pLayerName)
          return vk_error(NULL, VK_ERROR_LAYER_NOT_PRESENT);
    
       return vk_enumerate_instance_extension_properties(&radv_instance_extensions_supported, pPropertyCount, pProperties);
    }
    
    VKAPI_ATTR VkResult VKAPI_CALL
    radv_EnumerateInstanceVersion(uint32_t *pApiVersion)
    {
       *pApiVersion = RADV_API_VERSION;
       return VK_SUCCESS;
    }
    
    VKAPI_ATTR VkResult VKAPI_CALL
    radv_EnumerateInstanceLayerProperties(uint32_t *pPropertyCount, VkLayerProperties *pProperties)
    {
       if (pProperties == NULL) {
          *pPropertyCount = 0;
          return VK_SUCCESS;
       }
    
       /* None supported at this time */
       return vk_error(NULL, VK_ERROR_LAYER_NOT_PRESENT);
    }
    
    VKAPI_ATTR PFN_vkVoidFunction VKAPI_CALL
    radv_GetInstanceProcAddr(VkInstance _instance, const char *pName)
    {
       VK_FROM_HANDLE(vk_instance, instance, _instance);
       return vk_instance_get_proc_addr(instance, &radv_instance_entrypoints, pName);
    }
    
    /* Windows will use a dll definition file to avoid build errors. */
    #ifdef _WIN32
    #undef PUBLIC
    #define PUBLIC
    #endif
    
    /* The loader wants us to expose a second GetInstanceProcAddr function
     * to work around certain LD_PRELOAD issues seen in apps.
     */
    PUBLIC
    VKAPI_ATTR PFN_vkVoidFunction VKAPI_CALL
    vk_icdGetInstanceProcAddr(VkInstance instance, const char *pName)
    {
       return radv_GetInstanceProcAddr(instance, pName);
    }