0,0 → 1,99 |
/* |
* 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 <drm/ttm/ttm_bo_driver.h> |
#include <drm/ttm/ttm_memory.h> |
|
/** |
* 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); |
|
/** |
* ttm_pool_populate: |
* |
* @ttm: The struct ttm_tt to contain the backing pages. |
* |
* Add backing pages to all of @ttm |
*/ |
extern int ttm_pool_populate(struct ttm_tt *ttm); |
|
/** |
* ttm_pool_unpopulate: |
* |
* @ttm: The struct ttm_tt which to free backing pages. |
* |
* Free all pages of @ttm |
*/ |
extern void ttm_pool_unpopulate(struct ttm_tt *ttm); |
|
/** |
* Output the state of pools to debugfs file |
*/ |
extern int ttm_page_alloc_debugfs(struct seq_file *m, void *data); |
|
|
#ifdef CONFIG_SWIOTLB |
/** |
* Initialize pool allocator. |
*/ |
int ttm_dma_page_alloc_init(struct ttm_mem_global *glob, unsigned max_pages); |
|
/** |
* Free pool allocator. |
*/ |
void ttm_dma_page_alloc_fini(void); |
|
/** |
* Output the state of pools to debugfs file |
*/ |
extern int ttm_dma_page_alloc_debugfs(struct seq_file *m, void *data); |
|
extern int ttm_dma_populate(struct ttm_dma_tt *ttm_dma, struct device *dev); |
extern void ttm_dma_unpopulate(struct ttm_dma_tt *ttm_dma, struct device *dev); |
|
#else |
static inline int ttm_dma_page_alloc_init(struct ttm_mem_global *glob, |
unsigned max_pages) |
{ |
return -ENODEV; |
} |
|
static inline void ttm_dma_page_alloc_fini(void) { return; } |
|
static inline int ttm_dma_page_alloc_debugfs(struct seq_file *m, void *data) |
{ |
return 0; |
} |
#endif |
|
#endif |