diff options
Diffstat (limited to 'include/drm')
| -rw-r--r-- | include/drm/ttm/ttm_bo_api.h | 1 | ||||
| -rw-r--r-- | include/drm/ttm/ttm_bo_driver.h | 94 |
2 files changed, 69 insertions, 26 deletions
diff --git a/include/drm/ttm/ttm_bo_api.h b/include/drm/ttm/ttm_bo_api.h index 99dc521aa1a..49114617052 100644 --- a/include/drm/ttm/ttm_bo_api.h +++ b/include/drm/ttm/ttm_bo_api.h @@ -155,6 +155,7 @@ struct ttm_buffer_object { * Members constant at init. */ + struct ttm_bo_global *glob; struct ttm_bo_device *bdev; unsigned long buffer_start; enum ttm_bo_type type; diff --git a/include/drm/ttm/ttm_bo_driver.h b/include/drm/ttm/ttm_bo_driver.h index 62ed733c52a..9dc32f70b9a 100644 --- a/include/drm/ttm/ttm_bo_driver.h +++ b/include/drm/ttm/ttm_bo_driver.h @@ -32,6 +32,7 @@ #include "ttm/ttm_bo_api.h" #include "ttm/ttm_memory.h" +#include "ttm/ttm_module.h" #include "drm_mm.h" #include "linux/workqueue.h" #include "linux/fs.h" @@ -160,7 +161,7 @@ struct ttm_tt { long last_lomem_page; uint32_t page_flags; unsigned long num_pages; - struct ttm_bo_device *bdev; + struct ttm_bo_global *glob; struct ttm_backend *be; struct task_struct *tsk; unsigned long start; @@ -355,24 +356,73 @@ struct ttm_bo_driver { void *(*sync_obj_ref) (void *sync_obj); }; -#define TTM_NUM_MEM_TYPES 8 +/** + * struct ttm_bo_global_ref - Argument to initialize a struct ttm_bo_global. + */ + +struct ttm_bo_global_ref { + struct ttm_global_reference ref; + struct ttm_mem_global *mem_glob; +}; -#define TTM_BO_PRIV_FLAG_MOVING 0 /* Buffer object is moving and needs - idling before CPU mapping */ -#define TTM_BO_PRIV_FLAG_MAX 1 /** - * struct ttm_bo_device - Buffer object driver device-specific data. + * struct ttm_bo_global - Buffer object driver global data. * * @mem_glob: Pointer to a struct ttm_mem_global object for accounting. - * @driver: Pointer to a struct ttm_bo_driver struct setup by the driver. - * @count: Current number of buffer object. - * @pages: Current number of pinned pages. * @dummy_read_page: Pointer to a dummy page used for mapping requests * of unpopulated pages. - * @shrink: A shrink callback object used for buffre object swap. + * @shrink: A shrink callback object used for buffer object swap. * @ttm_bo_extra_size: Extra size (sizeof(struct ttm_buffer_object) excluded) * used by a buffer object. This is excluding page arrays and backing pages. * @ttm_bo_size: This is @ttm_bo_extra_size + sizeof(struct ttm_buffer_object). + * @device_list_mutex: Mutex protecting the device list. + * This mutex is held while traversing the device list for pm options. + * @lru_lock: Spinlock protecting the bo subsystem lru lists. + * @device_list: List of buffer object devices. + * @swap_lru: Lru list of buffer objects used for swapping. + */ + +struct ttm_bo_global { + + /** + * Constant after init. + */ + + struct kobject kobj; + struct ttm_mem_global *mem_glob; + struct page *dummy_read_page; + struct ttm_mem_shrink shrink; + size_t ttm_bo_extra_size; + size_t ttm_bo_size; + struct mutex device_list_mutex; + spinlock_t lru_lock; + + /** + * Protected by device_list_mutex. + */ + struct list_head device_list; + + /** + * Protected by the lru_lock. + */ + struct list_head swap_lru; + + /** + * Internal protection. + */ + atomic_t bo_count; +}; + + +#define TTM_NUM_MEM_TYPES 8 + +#define TTM_BO_PRIV_FLAG_MOVING 0 /* Buffer object is moving and needs + idling before CPU mapping */ +#define TTM_BO_PRIV_FLAG_MAX 1 +/** + * struct ttm_bo_device - Buffer object driver device-specific data. + * + * @driver: Pointer to a struct ttm_bo_driver struct setup by the driver. * @man: An array of mem_type_managers. * @addr_space_mm: Range manager for the device address space. * lru_lock: Spinlock that protects the buffer+device lru lists and @@ -390,32 +440,21 @@ struct ttm_bo_device { /* * Constant after bo device init / atomic. */ - - struct ttm_mem_global *mem_glob; + struct list_head device_list; + struct ttm_bo_global *glob; struct ttm_bo_driver *driver; - struct page *dummy_read_page; - struct ttm_mem_shrink shrink; - - size_t ttm_bo_extra_size; - size_t ttm_bo_size; - rwlock_t vm_lock; + struct ttm_mem_type_manager man[TTM_NUM_MEM_TYPES]; /* * Protected by the vm lock. */ - struct ttm_mem_type_manager man[TTM_NUM_MEM_TYPES]; struct rb_root addr_space_rb; struct drm_mm addr_space_mm; /* - * Might want to change this to one lock per manager. - */ - spinlock_t lru_lock; - /* - * Protected by the lru lock. + * Protected by the global:lru lock. */ struct list_head ddestroy; - struct list_head swap_lru; /* * Protected by load / firstopen / lastclose /unload sync. @@ -629,6 +668,9 @@ extern int ttm_bo_pci_offset(struct ttm_bo_device *bdev, unsigned long *bus_offset, unsigned long *bus_size); +extern void ttm_bo_global_release(struct ttm_global_reference *ref); +extern int ttm_bo_global_init(struct ttm_global_reference *ref); + extern int ttm_bo_device_release(struct ttm_bo_device *bdev); /** @@ -646,7 +688,7 @@ extern int ttm_bo_device_release(struct ttm_bo_device *bdev); * !0: Failure. */ extern int ttm_bo_device_init(struct ttm_bo_device *bdev, - struct ttm_mem_global *mem_glob, + struct ttm_bo_global *glob, struct ttm_bo_driver *driver, uint64_t file_page_offset); |