diff options
Diffstat (limited to 'include/drm/ttm')
| -rw-r--r-- | include/drm/ttm/ttm_bo_api.h | 13 | ||||
| -rw-r--r-- | include/drm/ttm/ttm_bo_driver.h | 94 | ||||
| -rw-r--r-- | include/drm/ttm/ttm_memory.h | 43 | ||||
| -rw-r--r-- | include/drm/ttm/ttm_module.h | 2 |
4 files changed, 101 insertions, 51 deletions
diff --git a/include/drm/ttm/ttm_bo_api.h b/include/drm/ttm/ttm_bo_api.h index cd22ab4b495c..491146170522 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; @@ -245,14 +246,15 @@ struct ttm_buffer_object { * premapped region. */ +#define TTM_BO_MAP_IOMEM_MASK 0x80 struct ttm_bo_kmap_obj { void *virtual; struct page *page; enum { - ttm_bo_map_iomap, - ttm_bo_map_vmap, - ttm_bo_map_kmap, - ttm_bo_map_premapped, + ttm_bo_map_iomap = 1 | TTM_BO_MAP_IOMEM_MASK, + ttm_bo_map_vmap = 2, + ttm_bo_map_kmap = 3, + ttm_bo_map_premapped = 4 | TTM_BO_MAP_IOMEM_MASK, } bo_kmap_type; }; @@ -522,8 +524,7 @@ extern int ttm_bo_evict_mm(struct ttm_bo_device *bdev, unsigned mem_type); static inline void *ttm_kmap_obj_virtual(struct ttm_bo_kmap_obj *map, bool *is_iomem) { - *is_iomem = (map->bo_kmap_type == ttm_bo_map_iomap || - map->bo_kmap_type == ttm_bo_map_premapped); + *is_iomem = !!(map->bo_kmap_type & TTM_BO_MAP_IOMEM_MASK); return map->virtual; } diff --git a/include/drm/ttm/ttm_bo_driver.h b/include/drm/ttm/ttm_bo_driver.h index a68829db381a..e8cd6d20aed2 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" @@ -161,7 +162,7 @@ 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; @@ -364,24 +365,73 @@ struct ttm_bo_driver { void (*fault_reserve_notify)(struct ttm_buffer_object *bo); }; -#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 @@ -399,32 +449,21 @@ 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. @@ -640,6 +679,9 @@ 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); /** @@ -657,7 +699,7 @@ 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, bool need_dma32); diff --git a/include/drm/ttm/ttm_memory.h b/include/drm/ttm/ttm_memory.h index d8b8f042c4f1..6983a7cf4da4 100644 --- a/include/drm/ttm/ttm_memory.h +++ b/include/drm/ttm/ttm_memory.h @@ -32,6 +32,7 @@ #include <linux/spinlock.h> #include <linux/wait.h> #include <linux/errno.h> +#include <linux/kobject.h> /** * struct ttm_mem_shrink - callback to shrink TTM memory usage. @@ -60,34 +61,33 @@ struct ttm_mem_shrink { * @queue: Wait queue for processes suspended waiting for memory. * @lock: Lock to protect the @shrink - and the memory accounting members, * that is, essentially the whole structure with some exceptions. - * @emer_memory: Lowmem memory limit available for root. - * @max_memory: Lowmem memory limit available for non-root. - * @swap_limit: Lowmem memory limit where the shrink workqueue kicks in. - * @used_memory: Currently used lowmem memory. - * @used_total_memory: Currently used total (lowmem + highmem) memory. - * @total_memory_swap_limit: Total memory limit where the shrink workqueue - * kicks in. - * @max_total_memory: Total memory available to non-root processes. - * @emer_total_memory: Total memory available to root processes. + * @zones: Array of pointers to accounting zones. + * @num_zones: Number of populated entries in the @zones array. + * @zone_kernel: Pointer to the kernel zone. + * @zone_highmem: Pointer to the highmem zone if there is one. + * @zone_dma32: Pointer to the dma32 zone if there is one. * * Note that this structure is not per device. It should be global for all * graphics devices. */ +#define TTM_MEM_MAX_ZONES 2 +struct ttm_mem_zone; struct ttm_mem_global { + struct kobject kobj; struct ttm_mem_shrink *shrink; struct workqueue_struct *swap_queue; struct work_struct work; wait_queue_head_t queue; spinlock_t lock; - uint64_t emer_memory; - uint64_t max_memory; - uint64_t swap_limit; - uint64_t used_memory; - uint64_t used_total_memory; - uint64_t total_memory_swap_limit; - uint64_t max_total_memory; - uint64_t emer_total_memory; + struct ttm_mem_zone *zones[TTM_MEM_MAX_ZONES]; + unsigned int num_zones; + struct ttm_mem_zone *zone_kernel; +#ifdef CONFIG_HIGHMEM + struct ttm_mem_zone *zone_highmem; +#else + struct ttm_mem_zone *zone_dma32; +#endif }; /** @@ -146,8 +146,13 @@ static inline void ttm_mem_unregister_shrink(struct ttm_mem_global *glob, extern int ttm_mem_global_init(struct ttm_mem_global *glob); extern void ttm_mem_global_release(struct ttm_mem_global *glob); extern int ttm_mem_global_alloc(struct ttm_mem_global *glob, uint64_t memory, - bool no_wait, bool interruptible, bool himem); + bool no_wait, bool interruptible); extern void ttm_mem_global_free(struct ttm_mem_global *glob, - uint64_t amount, bool himem); + uint64_t amount); +extern int ttm_mem_global_alloc_page(struct ttm_mem_global *glob, + struct page *page, + bool no_wait, bool interruptible); +extern void ttm_mem_global_free_page(struct ttm_mem_global *glob, + struct page *page); extern size_t ttm_round_pot(size_t size); #endif diff --git a/include/drm/ttm/ttm_module.h b/include/drm/ttm/ttm_module.h index d1d433834e4f..cf416aee19af 100644 --- a/include/drm/ttm/ttm_module.h +++ b/include/drm/ttm/ttm_module.h @@ -32,6 +32,7 @@ #define _TTM_MODULE_H_ #include <linux/kernel.h> +struct kobject; #define TTM_PFX "[TTM] " @@ -54,5 +55,6 @@ extern void ttm_global_init(void); extern void ttm_global_release(void); extern int ttm_global_item_ref(struct ttm_global_reference *ref); extern void ttm_global_item_unref(struct ttm_global_reference *ref); +extern struct kobject *ttm_get_kobj(void); #endif /* _TTM_MODULE_H_ */ |