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/*
* drivers/video/tegra/host/nvhost_memmgr.h
*
* Tegra Graphics Host Memory Management Abstraction header
*
* Copyright (c) 2012, NVIDIA Corporation.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _NVHOST_MEM_MGR_H_
#define _NVHOST_MEM_MGR_H_
struct nvhost_chip_support;
struct mem_mgr;
struct mem_handle;
struct platform_device;
struct nvhost_job_unpin {
struct mem_handle *h;
struct sg_table *mem;
};
enum mem_mgr_flag {
mem_mgr_flag_uncacheable = 0,
mem_mgr_flag_write_combine = 1,
};
enum mem_mgr_type {
mem_mgr_type_nvmap = 0,
mem_mgr_type_dmabuf = 1,
};
#define MEMMGR_TYPE_MASK 0x3
#define MEMMGR_ID_MASK ~0x3
int nvhost_memmgr_init(struct nvhost_chip_support *chip);
struct mem_mgr *nvhost_memmgr_alloc_mgr(void);
void nvhost_memmgr_put_mgr(struct mem_mgr *);
struct mem_mgr *nvhost_memmgr_get_mgr(struct mem_mgr *);
struct mem_mgr *nvhost_memmgr_get_mgr_file(int fd);
struct mem_handle *nvhost_memmgr_alloc(struct mem_mgr *,
size_t size, size_t align,
int flags);
struct mem_handle *nvhost_memmgr_get(struct mem_mgr *,
u32 id, struct platform_device *dev);
static inline int nvhost_memmgr_type(u32 id) { return id & MEMMGR_TYPE_MASK; }
static inline int nvhost_memmgr_id(u32 id) { return id & MEMMGR_ID_MASK; }
int nvhost_memmgr_pin_array_ids(struct mem_mgr *mgr,
struct platform_device *dev,
long unsigned *ids,
dma_addr_t *phys_addr,
u32 count,
struct nvhost_job_unpin *unpin_data);
#endif
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