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nixpkgs/pkgs/development/libraries/mesa/disk_cache-include-dri-driver-path-in-cache-key.patch
2022-10-13 15:40:56 -03:00

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Author: David McFarland <corngood@gmail.com>
Date: Mon Aug 6 15:52:11 2018 -0300
[PATCH] disk_cache: include dri driver path in cache key
This fixes invalid cache hits on NixOS where all shared library
timestamps in /nix/store are zero.
diff --git a/meson_options.txt b/meson_options.txt
index b8f753e2e1a..70d9071c8be 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -452,6 +452,12 @@ option(
value : true,
description : 'Enable direct rendering in GLX and EGL for DRI',
)
+option(
+ 'disk-cache-key',
+ type : 'string',
+ value : '',
+ description : 'Mesa cache key.'
+)
option('egl-lib-suffix',
type : 'string',
value : '',
diff --git a/src/util/disk_cache.c b/src/util/disk_cache.c
index 8dbe0938d11..498fe42de70 100644
--- a/src/util/disk_cache.c
+++ b/src/util/disk_cache.c
@@ -194,8 +194,10 @@ disk_cache_create(const char *gpu_name, const char *driver_id,
/* Create driver id keys */
size_t id_size = strlen(driver_id) + 1;
+ size_t key_size = strlen(DISK_CACHE_KEY) + 1;
size_t gpu_name_size = strlen(gpu_name) + 1;
cache->driver_keys_blob_size += id_size;
+ cache->driver_keys_blob_size += key_size;
cache->driver_keys_blob_size += gpu_name_size;
/* We sometimes store entire structs that contains a pointers in the cache,
@@ -216,6 +218,7 @@ disk_cache_create(const char *gpu_name, const char *driver_id,
uint8_t *drv_key_blob = cache->driver_keys_blob;
DRV_KEY_CPY(drv_key_blob, &cache_version, cv_size)
DRV_KEY_CPY(drv_key_blob, driver_id, id_size)
+ DRV_KEY_CPY(drv_key_blob, DISK_CACHE_KEY, key_size)
DRV_KEY_CPY(drv_key_blob, gpu_name, gpu_name_size)
DRV_KEY_CPY(drv_key_blob, &ptr_size, ptr_size_size)
DRV_KEY_CPY(drv_key_blob, &driver_flags, driver_flags_size)
diff --git a/src/util/meson.build b/src/util/meson.build
index cd44e49bfb4..f17115515a5 100644
--- a/src/util/meson.build
+++ b/src/util/meson.build
@@ -268,7 +268,12 @@ _libmesa_util = static_library(
include_directories : [inc_include, inc_src, inc_mapi, inc_mesa, inc_gallium, inc_gallium_aux],
dependencies : deps_for_libmesa_util,
link_with: [libmesa_format, libmesa_util_sse41],
- c_args : [c_msvc_compat_args],
+ c_args : [
+ c_msvc_compat_args,
+ '-DDISK_CACHE_KEY="@0@"'.format(
+ get_option('disk-cache-key')
+ ),
+ ],
gnu_symbol_visibility : 'hidden',
build_by_default : false
)