[Mesa-dev] [PATCH 35/40] util/disk_cache: allow drivers to pass a directory structure

Aaron Watry awatry at gmail.com
Tue Feb 7 17:40:12 UTC 2017


On Mon, Feb 6, 2017 at 9:42 PM, Timothy Arceri <tarceri at itsqueeze.com>
wrote:

> In order to avoid costly fallback recompiles when cache items are
> created with an old version of Mesa or for a different gpu on the
> same system we want to create directories that look like this:
>
> ./{MESA_VERSION_STRING}/{GPU_ID}
>
> For llvm based drivers we will probably want an additional
> {LLVM_VERSION} folder although it looks like there is currently
> no support for querying this at runtime.
> ---
>  src/compiler/glsl/tests/cache_test.c | 20 ++++++++++----------
>  src/util/disk_cache.c                | 29 +++++++++++++++++++++++++----
>  src/util/disk_cache.h                |  4 ++--
>  3 files changed, 37 insertions(+), 16 deletions(-)
>
> diff --git a/src/compiler/glsl/tests/cache_test.c
> b/src/compiler/glsl/tests/cache_test.c
> index 8547141..ba56441 100644
> --- a/src/compiler/glsl/tests/cache_test.c
> +++ b/src/compiler/glsl/tests/cache_test.c
> @@ -126,7 +126,7 @@ test_disk_cache_create(void)
>      * MESA_GLSL_CACHE_DISABLE set, that disk_cache_create returns NULL.
>      */
>     setenv("MESA_GLSL_CACHE_DISABLE", "1", 1);
> -   cache = disk_cache_create();
> +   cache = disk_cache_create("test", "make_check");
>     expect_null(cache, "disk_cache_create with MESA_GLSL_CACHE_DISABLE
> set");
>
>     unsetenv("MESA_GLSL_CACHE_DISABLE");
> @@ -137,19 +137,19 @@ test_disk_cache_create(void)
>     unsetenv("MESA_GLSL_CACHE_DIR");
>     unsetenv("XDG_CACHE_HOME");
>
> -   cache = disk_cache_create();
> +   cache = disk_cache_create("test", "make_check");
>     expect_non_null(cache, "disk_cache_create with no environment
> variables");
>
>     disk_cache_destroy(cache);
>
>     /* Test with XDG_CACHE_HOME set */
>     setenv("XDG_CACHE_HOME", CACHE_TEST_TMP "/xdg-cache-home", 1);
> -   cache = disk_cache_create();
> +   cache = disk_cache_create("test", "make_check");
>     expect_null(cache, "disk_cache_create with XDG_CACHE_HOME set with"
>                 "a non-existing parent directory");
>
>     mkdir(CACHE_TEST_TMP, 0755);
> -   cache = disk_cache_create();
> +   cache = disk_cache_create("test", "make_check");
>     expect_non_null(cache, "disk_cache_create with XDG_CACHE_HOME set");
>
>     disk_cache_destroy(cache);
> @@ -159,12 +159,12 @@ test_disk_cache_create(void)
>     expect_equal(err, 0, "Removing " CACHE_TEST_TMP);
>
>     setenv("MESA_GLSL_CACHE_DIR", CACHE_TEST_TMP "/mesa-glsl-cache-dir",
> 1);
> -   cache = disk_cache_create();
> +   cache = disk_cache_create("test", "make_check");
>     expect_null(cache, "disk_cache_create with MESA_GLSL_CACHE_DIR set
> with"
>                 "a non-existing parent directory");
>
>     mkdir(CACHE_TEST_TMP, 0755);
> -   cache = disk_cache_create();
> +   cache = disk_cache_create("test", "make_check");
>     expect_non_null(cache, "disk_cache_create with MESA_GLSL_CACHE_DIR
> set");
>
>     disk_cache_destroy(cache);
> @@ -203,7 +203,7 @@ test_put_and_get(void)
>     uint8_t one_KB_key[20], one_MB_key[20];
>     int count;
>
> -   cache = disk_cache_create();
> +   cache = disk_cache_create("test", "make_check");
>
>     _mesa_sha1_compute(blob, sizeof(blob), blob_key);
>
> @@ -235,7 +235,7 @@ test_put_and_get(void)
>     disk_cache_destroy(cache);
>
>     setenv("MESA_GLSL_CACHE_MAX_SIZE", "1K", 1);
> -   cache = disk_cache_create();
> +   cache = disk_cache_create("test", "make_check");
>
>     one_KB = calloc(1, 1024);
>
> @@ -287,7 +287,7 @@ test_put_and_get(void)
>     disk_cache_destroy(cache);
>
>     setenv("MESA_GLSL_CACHE_MAX_SIZE", "1M", 1);
> -   cache = disk_cache_create();
> +   cache = disk_cache_create("test", "make_check");
>
>     disk_cache_put(cache, blob_key, blob, sizeof(blob));
>     disk_cache_put(cache, string_key, string, sizeof(string));
> @@ -343,7 +343,7 @@ test_put_key_and_get_key(void)
>                          { 0,  1, 42, 43, 44, 45, 46, 47, 48, 49,
>                           50, 55, 52, 53, 54, 55, 56, 57, 58, 59};
>
> -   cache = disk_cache_create();
> +   cache = disk_cache_create("test", "make_check");
>
>     /* First test that disk_cache_has_key returns false before
> disk_cache_put_key */
>     result = disk_cache_has_key(cache, key_a);
> diff --git a/src/util/disk_cache.c b/src/util/disk_cache.c
> index 382ac6c..df511e4 100644
> --- a/src/util/disk_cache.c
> +++ b/src/util/disk_cache.c
> @@ -115,7 +115,7 @@ mkdir_if_needed(char *path)
>   *      <path>/<name> cannot be created as a directory
>   */
>  static char *
> -concatenate_and_mkdir(void *ctx, char *path, char *name)
> +concatenate_and_mkdir(void *ctx, char *path, const char *name)
>  {
>     char *new_path;
>     struct stat sb;
> @@ -131,8 +131,27 @@ concatenate_and_mkdir(void *ctx, char *path, char
> *name)
>        return NULL;
>  }
>
> +static char *
> +create_mesa_cache_dir(void *mem_ctx, char *path, const char *mesa_version,
> +                      const char *gpu_name)
> +{
> +   char *new_path = concatenate_and_mkdir(mem_ctx, path, "mesa");
> +   if (new_path == NULL)
> +      return NULL;
> +
> +   new_path = concatenate_and_mkdir(mem_ctx, new_path, mesa_version);
> +   if (new_path == NULL)
> +      return NULL;
> +
> +   new_path = concatenate_and_mkdir(mem_ctx, new_path, gpu_name);
> +   if (new_path == NULL)
> +      return NULL;
> +
> +   return new_path;
> +}
> +
>  struct disk_cache *
> -disk_cache_create(void)
> +disk_cache_create(const char *gpu_name, const char *mesa_version)
>

You forgot to update cache_test.c, so make check now fails:

DIR/src/mesa/src/compiler/glsl/tests/cache_test.c: In function
‘test_put_key_and_get_key’:
DIR/src/mesa/src/compiler/glsl/tests/cache_test.c:346:12: error: too few
arguments to function ‘disk_cache_create’
    cache = disk_cache_create();
            ^
In file included from
DIR/src/mesa/src/compiler/glsl/tests/cache_test.c:36:0:
DIR/src/mesa/src/util/disk_cache.h:72:1: note: declared here
 disk_cache_create(const char *driver_directory, const char *mesa_version);
 ^
Makefile:2362: recipe for target
'glsl/tests/glsl_tests_cache_test-cache_test.o' failed




>  {
>     void *local;
>     struct disk_cache *cache = NULL;
> @@ -180,7 +199,8 @@ disk_cache_create(void)
>           if (mkdir_if_needed(xdg_cache_home) == -1)
>              goto fail;
>
> -         path = concatenate_and_mkdir(local, xdg_cache_home, "mesa");
> +         path = create_mesa_cache_dir(local, xdg_cache_home, mesa_version,
> +                                      gpu_name);
>           if (path == NULL)
>              goto fail;
>        }
> @@ -216,7 +236,8 @@ disk_cache_create(void)
>        if (path == NULL)
>           goto fail;
>
> -      path = concatenate_and_mkdir(local, path, "mesa");
> +      path = create_mesa_cache_dir(local, path, mesa_version,
> +                                   gpu_name);
>        if (path == NULL)
>           goto fail;
>     }
> diff --git a/src/util/disk_cache.h b/src/util/disk_cache.h
> index 1f2bf3d..e429db5 100644
> --- a/src/util/disk_cache.h
> +++ b/src/util/disk_cache.h
> @@ -69,7 +69,7 @@ struct disk_cache;
>   * assistance in computing SHA-1 signatures.
>   */
>  struct disk_cache *
> -disk_cache_create(void);
> +disk_cache_create(const char *gpu_name, const char *mesa_version);
>
>  /**
>   * Destroy a cache object, (freeing all associated resources).
> @@ -140,7 +140,7 @@ disk_cache_has_key(struct disk_cache *cache, cache_key
> key);
>  #else
>
>  static inline struct disk_cache *
> -disk_cache_create(void)
> +disk_cache_create(const char *gpu_name, const char *mesa_version)
>  {
>     return NULL;
>  }
> --
> 2.9.3
>
> _______________________________________________
> mesa-dev mailing list
> mesa-dev at lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/mesa-dev
>
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