nixpkgs/pkgs/development/libraries/mesa/disk_cache-include-dri-driver-path-in-cache-key.patch

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From 980164fd92f5c2302624cd046d30ff21e6e4ba8a Mon Sep 17 00:00:00 2001
From: David McFarland <corngood@gmail.com>
Date: Mon, 6 Aug 2018 15:52:11 -0300
Subject: [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.
---
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meson_options.txt | 6 ++++++
src/util/disk_cache.c | 3 +++
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src/util/meson.build | 7 ++++++-
3 files changed, 15 insertions(+), 1 deletion(-)
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diff --git a/meson_options.txt b/meson_options.txt
index 2d39d13b6ad..daf06480a60 100644
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--- a/meson_options.txt
+++ b/meson_options.txt
@@ -368,6 +368,12 @@ option(
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value : true,
description : 'Enable direct rendering in GLX and EGL for DRI',
)
+option(
+ 'disk-cache-key',
+ type : 'string',
+ value : '',
+ description : 'Mesa cache key.'
+)
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option(
'prefer-iris',
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type : 'boolean',
diff --git a/src/util/disk_cache.c b/src/util/disk_cache.c
index a92d621927a..3bd65c6890c 100644
--- a/src/util/disk_cache.c
+++ b/src/util/disk_cache.c
@@ -401,8 +401,10 @@ 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,
@@ -423,6 +425,7 @@ 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)
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diff --git a/src/util/meson.build b/src/util/meson.build
index 0893f64793b..d46ce85a85f 100644
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--- a/src/util/meson.build
+++ b/src/util/meson.build
@@ -179,7 +179,12 @@ _libmesa_util = static_library(
include_directories : [inc_include, inc_src, inc_mapi, inc_mesa, inc_gallium, inc_gallium_aux],
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dependencies : deps_for_libmesa_util,
link_with: libmesa_format,
- c_args : [c_msvc_compat_args],
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+ c_args : [
+ c_msvc_compat_args,
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+ '-DDISK_CACHE_KEY="@0@"'.format(
+ get_option('disk-cache-key')
+ ),
+ ],
gnu_symbol_visibility : 'hidden',
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build_by_default : false
)
--
2.28.0