[net-next-2.6.git] / include / drm / ttm / ttm_page_alloc.h

/*
 * Copyright (c) Red Hat Inc.

 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sub license,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice (including the
 * next paragraph) shall be included in all copies or substantial portions
 * of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 *
 * Authors: Dave Airlie <airlied@redhat.com>
 *          Jerome Glisse <jglisse@redhat.com>
 */
#ifndef TTM_PAGE_ALLOC
#define TTM_PAGE_ALLOC

#include "ttm_bo_driver.h"
#include "ttm_memory.h"

/**
 * Get count number of pages from pool to pages list.
 *
 * @pages: heado of empty linked list where pages are filled.
 * @flags: ttm flags for page allocation.
 * @cstate: ttm caching state for the page.
 * @count: number of pages to allocate.
 */
int ttm_get_pages(struct list_head *pages,
		  int flags,
		  enum ttm_caching_state cstate,
		  unsigned count);
/**
 * Put linked list of pages to pool.
 *
 * @pages: list of pages to free.
 * @page_count: number of pages in the list. Zero can be passed for unknown
 * count.
 * @flags: ttm flags for page allocation.
 * @cstate: ttm caching state.
 */
void ttm_put_pages(struct list_head *pages,
		   unsigned page_count,
		   int flags,
		   enum ttm_caching_state cstate);
/**
 * Initialize pool allocator.
 */
int ttm_page_alloc_init(struct ttm_mem_global *glob, unsigned max_pages);
/**
 * Free pool allocator.
 */
void ttm_page_alloc_fini(void);

/**
 * Output the state of pools to debugfs file
 */
extern int ttm_page_alloc_debugfs(struct seq_file *m, void *data);
#endif
Commit	Line	Data
1403b1a3 PN	1	/*
	2	* Copyright (c) Red Hat Inc.
	3
	4	* Permission is hereby granted, free of charge, to any person obtaining a
	5	* copy of this software and associated documentation files (the "Software"),
	6	* to deal in the Software without restriction, including without limitation
	7	* the rights to use, copy, modify, merge, publish, distribute, sub license,
	8	* and/or sell copies of the Software, and to permit persons to whom the
	9	* Software is furnished to do so, subject to the following conditions:
	10	*
	11	* The above copyright notice and this permission notice (including the
	12	* next paragraph) shall be included in all copies or substantial portions
	13	* of the Software.
	14	*
	15	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	16	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	17	* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
	18	* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
	19	* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
	20	* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
	21	* DEALINGS IN THE SOFTWARE.
	22	*
	23	* Authors: Dave Airlie <airlied@redhat.com>
	24	* Jerome Glisse <jglisse@redhat.com>
	25	*/
	26	#ifndef TTM_PAGE_ALLOC
	27	#define TTM_PAGE_ALLOC
	28
	29	#include "ttm_bo_driver.h"
	30	#include "ttm_memory.h"
	31
	32	/**
	33	* Get count number of pages from pool to pages list.
	34	*
	35	* @pages: heado of empty linked list where pages are filled.
	36	* @flags: ttm flags for page allocation.
	37	* @cstate: ttm caching state for the page.
	38	* @count: number of pages to allocate.
	39	*/
	40	int ttm_get_pages(struct list_head *pages,
	41	int flags,
	42	enum ttm_caching_state cstate,
	43	unsigned count);
	44	/**
	45	* Put linked list of pages to pool.
	46	*
	47	* @pages: list of pages to free.
	48	* @page_count: number of pages in the list. Zero can be passed for unknown
	49	* count.
	50	* @flags: ttm flags for page allocation.
	51	* @cstate: ttm caching state.
	52	*/
	53	void ttm_put_pages(struct list_head *pages,
	54	unsigned page_count,
	55	int flags,
	56	enum ttm_caching_state cstate);
	57	/**
	58	* Initialize pool allocator.
1403b1a3	59	*/
c96af79e	60	int ttm_page_alloc_init(struct ttm_mem_global *glob, unsigned max_pages);
1403b1a3 PN	61	/**
	62	* Free pool allocator.
	63	*/
	64	void ttm_page_alloc_fini(void);
	65
07458661 PN	66	/**
	67	* Output the state of pools to debugfs file
	68	*/
	69	extern int ttm_page_alloc_debugfs(struct seq_file m, void data);
1403b1a3	70	#endif