Contributors: 9
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Konrad Rzeszutek Wilk |
111 |
39.08% |
1 |
8.33% |
| Thomas Hellstrom |
47 |
16.55% |
1 |
8.33% |
| Pauli Nieminen |
46 |
16.20% |
3 |
25.00% |
| Christian König |
30 |
10.56% |
1 |
8.33% |
| Jérôme Glisse |
24 |
8.45% |
2 |
16.67% |
| Roger He |
20 |
7.04% |
1 |
8.33% |
| Alexandre Courbot |
3 |
1.06% |
1 |
8.33% |
| David Howells |
2 |
0.70% |
1 |
8.33% |
| Francisco Jerez |
1 |
0.35% |
1 |
8.33% |
| Total |
284 |
|
12 |
|
/*
* 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>
struct device;
/**
* 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
*/
int ttm_pool_populate(struct ttm_tt *ttm, struct ttm_operation_ctx *ctx);
/**
* ttm_pool_unpopulate:
*
* @ttm: The struct ttm_tt which to free backing pages.
*
* Free all pages of @ttm
*/
void ttm_pool_unpopulate(struct ttm_tt *ttm);
/**
* Populates and DMA maps pages to fullfil a ttm_dma_populate() request
*/
int ttm_populate_and_map_pages(struct device *dev, struct ttm_dma_tt *tt,
struct ttm_operation_ctx *ctx);
/**
* Unpopulates and DMA unmaps pages as part of a
* ttm_dma_unpopulate() request */
void ttm_unmap_and_unpopulate_pages(struct device *dev, struct ttm_dma_tt *tt);
/**
* Output the state of pools to debugfs file
*/
int ttm_page_alloc_debugfs(struct seq_file *m, void *data);
#if defined(CONFIG_SWIOTLB) || defined(CONFIG_INTEL_IOMMU)
/**
* 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
*/
int ttm_dma_page_alloc_debugfs(struct seq_file *m, void *data);
int ttm_dma_populate(struct ttm_dma_tt *ttm_dma, struct device *dev,
struct ttm_operation_ctx *ctx);
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;
}
static inline int ttm_dma_populate(struct ttm_dma_tt *ttm_dma,
struct device *dev,
struct ttm_operation_ctx *ctx)
{
return -ENOMEM;
}
static inline void ttm_dma_unpopulate(struct ttm_dma_tt *ttm_dma,
struct device *dev)
{
}
#endif
#endif