linux-4.4.1/ion_heap
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開始行:
*参照元 [#qa94e060]
#backlinks
*説明 [#za6344aa]
-パス: [[linux-4.4.1/drivers/staging/android/ion/ion_priv...
-FIXME: これは何？
--説明
--ION は ION ヒープから ION バッファを確保する
--ヒープの作成: [[linux-4.4.1/ion_heap_create()]]
--ヒープの破棄: [[linux-4.4.1/ion_heap_destroy()]]
**参考 [#ve604c82]
*実装 [#jf8505ab]
/**
* struct ion_heap - represents a heap in the system
* @node: rb node to put the heap on the d...
* @dev: back pointer to the ion_device
* @type: type of heap
* @ops: ops struct as above
* @flags: flags
* @id: id of heap, also indicates prior...
* allocating. These are specified...
* MUST be unique
* @name: used for debugging
* @shrinker: a shrinker for the heap
* @free_list: free list head if deferred free ...
* @free_list_size size of the deferred free list i...
* @lock: protects the free list
* @waitqueue: queue to wait on from deferred f...
* @task: task struct of deferred free thr...
* @debug_show: called when heap debug file is r...
* heap specific debug info to output
*
* Represents a pool of memory from which buffers can be...
* systems the only heap is regular system memory alloca...
* On others, some blocks might require large physically...
* that are allocated from a specially reserved heap.
*/
struct ion_heap {
struct plist_node node;
-
--[[linux-4.4.1/plist_node]]
struct ion_device *dev;
-
--[[linux-4.4.1/ion_device]]
enum ion_heap_type type;
-
--[[linux-4.4.1/ion_heap_type]]
struct ion_heap_ops *ops;
-
--[[linux-4.4.1/ion_heap_ops]]
unsigned long flags;
unsigned int id;
const char *name;
struct shrinker shrinker;
-
--[[linux-4.4.1/shrinker]]
struct list_head free_list;
size_t free_list_size;
-
--[[linux-4.4.1/list_head]]
spinlock_t free_lock;
wait_queue_head_t waitqueue;
struct task_struct *task;
-
--[[linux-4.4.1/spinlock_t]]
--[[linux-4.4.1/wait_queue_head_t]]
--[[linux-4.4.1/task_struct]]
int (*debug_show)(struct ion_heap *heap, struct ...
-
--[[linux-4.4.1/seq_file]]
};
*コメント [#q1544472]
終了行:
*参照元 [#qa94e060]
#backlinks
*説明 [#za6344aa]
-パス: [[linux-4.4.1/drivers/staging/android/ion/ion_priv...
-FIXME: これは何？
--説明
--ION は ION ヒープから ION バッファを確保する
--ヒープの作成: [[linux-4.4.1/ion_heap_create()]]
--ヒープの破棄: [[linux-4.4.1/ion_heap_destroy()]]
**参考 [#ve604c82]
*実装 [#jf8505ab]
/**
* struct ion_heap - represents a heap in the system
* @node: rb node to put the heap on the d...
* @dev: back pointer to the ion_device
* @type: type of heap
* @ops: ops struct as above
* @flags: flags
* @id: id of heap, also indicates prior...
* allocating. These are specified...
* MUST be unique
* @name: used for debugging
* @shrinker: a shrinker for the heap
* @free_list: free list head if deferred free ...
* @free_list_size size of the deferred free list i...
* @lock: protects the free list
* @waitqueue: queue to wait on from deferred f...
* @task: task struct of deferred free thr...
* @debug_show: called when heap debug file is r...
* heap specific debug info to output
*
* Represents a pool of memory from which buffers can be...
* systems the only heap is regular system memory alloca...
* On others, some blocks might require large physically...
* that are allocated from a specially reserved heap.
*/
struct ion_heap {
struct plist_node node;
-
--[[linux-4.4.1/plist_node]]
struct ion_device *dev;
-
--[[linux-4.4.1/ion_device]]
enum ion_heap_type type;
-
--[[linux-4.4.1/ion_heap_type]]
struct ion_heap_ops *ops;
-
--[[linux-4.4.1/ion_heap_ops]]
unsigned long flags;
unsigned int id;
const char *name;
struct shrinker shrinker;
-
--[[linux-4.4.1/shrinker]]
struct list_head free_list;
size_t free_list_size;
-
--[[linux-4.4.1/list_head]]
spinlock_t free_lock;
wait_queue_head_t waitqueue;
struct task_struct *task;
-
--[[linux-4.4.1/spinlock_t]]
--[[linux-4.4.1/wait_queue_head_t]]
--[[linux-4.4.1/task_struct]]
int (*debug_show)(struct ion_heap *heap, struct ...
-
--[[linux-4.4.1/seq_file]]
};
*コメント [#q1544472]
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