diff options
Diffstat (limited to 'drivers/android/binder_alloc.h')
| -rw-r--r-- | drivers/android/binder_alloc.h | 32 |
1 files changed, 28 insertions, 4 deletions
diff --git a/drivers/android/binder_alloc.h b/drivers/android/binder_alloc.h index 088e4ffc6230..a3a3602c689c 100644 --- a/drivers/android/binder_alloc.h +++ b/drivers/android/binder_alloc.h @@ -21,7 +21,9 @@ #include <linux/rtmutex.h> #include <linux/vmalloc.h> #include <linux/slab.h> +#include <linux/list_lru.h> +extern struct list_lru binder_alloc_lru; struct binder_transaction; /** @@ -57,7 +59,19 @@ struct binder_buffer { size_t data_size; size_t offsets_size; size_t extra_buffers_size; - uint8_t data[0]; + void *data; +}; + +/** + * struct binder_lru_page - page object used for binder shrinker + * @page_ptr: pointer to physical page in mmap'd space + * @lru: entry in binder_alloc_lru + * @alloc: binder_alloc for a proc + */ +struct binder_lru_page { + struct list_head lru; + struct page *page_ptr; + struct binder_alloc *alloc; }; /** @@ -75,8 +89,7 @@ struct binder_buffer { * @allocated_buffers: rb tree of allocated buffers sorted by address * @free_async_space: VA space available for async buffers. This is * initialized at mmap time to 1/2 the full VA space - * @pages: array of physical page addresses for each - * page of mmap'd space + * @pages: array of binder_lru_page * @buffer_size: size of address space specified via mmap * @pid: pid for associated binder_proc (invariant after init) * @@ -96,18 +109,27 @@ struct binder_alloc { struct rb_root free_buffers; struct rb_root allocated_buffers; size_t free_async_space; - struct page **pages; + struct binder_lru_page *pages; size_t buffer_size; uint32_t buffer_free; int pid; }; +#ifdef CONFIG_ANDROID_BINDER_IPC_SELFTEST +void binder_selftest_alloc(struct binder_alloc *alloc); +#else +static inline void binder_selftest_alloc(struct binder_alloc *alloc) {} +#endif +enum lru_status binder_alloc_free_page(struct list_head *item, + struct list_lru_one *lru, + spinlock_t *lock, void *cb_arg); extern struct binder_buffer *binder_alloc_new_buf(struct binder_alloc *alloc, size_t data_size, size_t offsets_size, size_t extra_buffers_size, int is_async); extern void binder_alloc_init(struct binder_alloc *alloc); +void binder_alloc_shrinker_init(void); extern void binder_alloc_vma_close(struct binder_alloc *alloc); extern struct binder_buffer * binder_alloc_prepare_to_free(struct binder_alloc *alloc, @@ -120,6 +142,8 @@ extern void binder_alloc_deferred_release(struct binder_alloc *alloc); extern int binder_alloc_get_allocated_count(struct binder_alloc *alloc); extern void binder_alloc_print_allocated(struct seq_file *m, struct binder_alloc *alloc); +void binder_alloc_print_pages(struct seq_file *m, + struct binder_alloc *alloc); /** * binder_alloc_get_free_async_space() - get free space available for async |