#ifndef DISK_CACHE_H
#define DISK_CACHE_H
+#ifdef HAVE_DLFCN_H
+#include <dlfcn.h>
+#include <stdio.h>
+#include "util/build_id.h"
+#endif
+#include <assert.h>
#include <stdint.h>
#include <stdbool.h>
+#include <sys/stat.h>
+#include "util/mesa-sha1.h"
#ifdef __cplusplus
extern "C" {
/* Size of cache keys in bytes. */
#define CACHE_KEY_SIZE 20
+#define CACHE_DIR_NAME "mesa_shader_cache"
+
typedef uint8_t cache_key[CACHE_KEY_SIZE];
+/* WARNING: 3rd party applications might be reading the cache item metadata.
+ * Do not change these values without making the change widely known.
+ * Please contact Valve developers and make them aware of this change.
+ */
+#define CACHE_ITEM_TYPE_UNKNOWN 0x0
+#define CACHE_ITEM_TYPE_GLSL 0x1
+
+typedef void
+(*disk_cache_put_cb) (const void *key, signed long keySize,
+ const void *value, signed long valueSize);
+
+typedef signed long
+(*disk_cache_get_cb) (const void *key, signed long keySize,
+ void *value, signed long valueSize);
+
+struct cache_item_metadata {
+ /**
+ * The cache item type. This could be used to identify a GLSL cache item,
+ * a certain type of IR (tgsi, nir, etc), or signal that it is the final
+ * binary form of the shader.
+ */
+ uint32_t type;
+
+ /** GLSL cache item metadata */
+ cache_key *keys; /* sha1 list of shaders that make up the cache item */
+ uint32_t num_keys;
+};
+
struct disk_cache;
+static inline char *
+disk_cache_format_hex_id(char *buf, const uint8_t *hex_id, unsigned size)
+{
+ static const char hex_digits[] = "0123456789abcdef";
+ unsigned i;
+
+ for (i = 0; i < size; i += 2) {
+ buf[i] = hex_digits[hex_id[i >> 1] >> 4];
+ buf[i + 1] = hex_digits[hex_id[i >> 1] & 0x0f];
+ }
+ buf[i] = '\0';
+
+ return buf;
+}
+
+#ifdef HAVE_DLADDR
+static inline bool
+disk_cache_get_function_timestamp(void *ptr, uint32_t* timestamp)
+{
+ Dl_info info;
+ struct stat st;
+ if (!dladdr(ptr, &info) || !info.dli_fname) {
+ return false;
+ }
+ if (stat(info.dli_fname, &st)) {
+ return false;
+ }
+
+ if (!st.st_mtime) {
+ fprintf(stderr, "Mesa: The provided filesystem timestamp for the cache "
+ "is bogus! Disabling On-disk cache.\n");
+ return false;
+ }
+
+ *timestamp = st.st_mtime;
+
+ return true;
+}
+
+static inline bool
+disk_cache_get_function_identifier(void *ptr, struct mesa_sha1 *ctx)
+{
+ uint32_t timestamp;
+
+#ifdef HAVE_DL_ITERATE_PHDR
+ const struct build_id_note *note = NULL;
+ if ((note = build_id_find_nhdr_for_addr(ptr))) {
+ _mesa_sha1_update(ctx, build_id_data(note), build_id_length(note));
+ } else
+#endif
+ if (disk_cache_get_function_timestamp(ptr, ×tamp)) {
+ _mesa_sha1_update(ctx, ×tamp, sizeof(timestamp));
+ } else
+ return false;
+ return true;
+}
+#else
+static inline bool
+disk_cache_get_function_identifier(void *ptr, struct mesa_sha1 *ctx)
+{
+ return false;
+}
+#endif
+
/* Provide inlined stub functions if the shader cache is disabled. */
+#ifdef ENABLE_SHADER_CACHE
+
/**
* Create a new cache object.
*
* assistance in computing SHA-1 signatures.
*/
struct disk_cache *
-disk_cache_create(void);
+disk_cache_create(const char *gpu_name, const char *timestamp,
+ uint64_t driver_flags);
/**
* Destroy a cache object, (freeing all associated resources).
void
disk_cache_destroy(struct disk_cache *cache);
+/* Wait for all previous disk_cache_put() calls to be processed (used for unit
+ * testing).
+ */
+void
+disk_cache_wait_for_idle(struct disk_cache *cache);
+
+/**
+ * Remove the item in the cache under the name \key.
+ */
+void
+disk_cache_remove(struct disk_cache *cache, const cache_key key);
+
/**
* Store an item in the cache under the name \key.
*
* evicted from the cache.
*/
void
-disk_cache_put(struct disk_cache *cache, cache_key key,
- const void *data, size_t size);
+disk_cache_put(struct disk_cache *cache, const cache_key key,
+ const void *data, size_t size,
+ struct cache_item_metadata *cache_item_metadata);
/**
* Retrieve an item previously stored in the cache with the name <key>.
* caller should call free() it when finished.
*/
void *
-disk_cache_get(struct disk_cache *cache, cache_key key, size_t *size);
+disk_cache_get(struct disk_cache *cache, const cache_key key, size_t *size);
/**
* Store the name \key within the cache, (without any associated data).
* Later this key can be checked with disk_cache_has_key(), (unless the key
* has been evicted in the interim).
*
- * Any call to cache_record() may cause an existing, random key to be
+ * Any call to disk_cache_put_key() may cause an existing, random key to be
* evicted from the cache.
*/
void
-disk_cache_put_key(struct disk_cache *cache, cache_key key);
+disk_cache_put_key(struct disk_cache *cache, const cache_key key);
/**
* Test whether the name \key was previously recorded in the cache.
* disk_cache_has_key() to return true for the same key.
*/
bool
-disk_cache_has_key(struct disk_cache *cache, cache_key key);
+disk_cache_has_key(struct disk_cache *cache, const cache_key key);
+
+/**
+ * Compute the name \key from \data of given \size.
+ */
+void
+disk_cache_compute_key(struct disk_cache *cache, const void *data, size_t size,
+ cache_key key);
+
+void
+disk_cache_set_callbacks(struct disk_cache *cache, disk_cache_put_cb put,
+ disk_cache_get_cb get);
+
+#else
+
+static inline struct disk_cache *
+disk_cache_create(const char *gpu_name, const char *timestamp,
+ uint64_t driver_flags)
+{
+ return NULL;
+}
+
+static inline void
+disk_cache_destroy(struct disk_cache *cache) {
+ return;
+}
+
+static inline void
+disk_cache_put(struct disk_cache *cache, const cache_key key,
+ const void *data, size_t size,
+ struct cache_item_metadata *cache_item_metadata)
+{
+ return;
+}
+
+static inline void
+disk_cache_remove(struct disk_cache *cache, const cache_key key)
+{
+ return;
+}
+
+static inline uint8_t *
+disk_cache_get(struct disk_cache *cache, const cache_key key, size_t *size)
+{
+ return NULL;
+}
+
+static inline void
+disk_cache_put_key(struct disk_cache *cache, const cache_key key)
+{
+ return;
+}
+
+static inline bool
+disk_cache_has_key(struct disk_cache *cache, const cache_key key)
+{
+ return false;
+}
+
+static inline void
+disk_cache_compute_key(struct disk_cache *cache, const void *data, size_t size,
+ const cache_key key)
+{
+ return;
+}
+
+static inline void
+disk_cache_set_callbacks(struct disk_cache *cache, disk_cache_put_cb put,
+ disk_cache_get_cb get)
+{
+ return;
+}
+
+#endif /* ENABLE_SHADER_CACHE */
#ifdef __cplusplus
}
projects / mesa.git / blobdiff