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/*
* include/linux/nvmap.h
*
* structure declarations for nvmem and nvmap user-space ioctls
*
* Copyright (c) 2009, NVIDIA Corporation.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that 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, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include <linux/ioctl.h>
#include <linux/file.h>
#if !defined(__KERNEL__)
#define __user
#endif
#ifndef __NVMAP_H
#define __NVMAP_H
#define NVMAP_HEAP_SYSMEM (1ul<<31)
#define NVMAP_HEAP_IOVMM (1ul<<30)
/* common carveout heaps */
#define NVMAP_HEAP_CARVEOUT_IRAM (1ul<<29)
#define NVMAP_HEAP_CARVEOUT_GENERIC (1ul<<0)
#define NVMAP_HEAP_CARVEOUT_MASK (NVMAP_HEAP_IOVMM - 1)
/* allocation flags */
#define NVMAP_HANDLE_UNCACHEABLE (0x0ul << 0)
#define NVMAP_HANDLE_WRITE_COMBINE (0x1ul << 0)
#define NVMAP_HANDLE_INNER_CACHEABLE (0x2ul << 0)
#define NVMAP_HANDLE_CACHEABLE (0x3ul << 0)
#define NVMAP_HANDLE_CACHE_FLAG (0x3ul << 0)
#define NVMAP_HANDLE_SECURE (0x1ul << 2)
#if defined(__KERNEL__)
struct nvmap_handle_ref;
struct nvmap_handle;
struct nvmap_client;
struct nvmap_device;
#define nvmap_ref_to_handle(_ref) (*(struct nvmap_handle **)(_ref))
#define nvmap_id_to_handle(_id) ((struct nvmap_handle *)(_id))
struct nvmap_pinarray_elem {
__u32 patch_mem;
__u32 patch_offset;
__u32 pin_mem;
__u32 pin_offset;
};
struct nvmap_client *nvmap_create_client(struct nvmap_device *dev,
const char *name);
struct nvmap_handle_ref *nvmap_alloc(struct nvmap_client *client, size_t size,
size_t align, unsigned int flags);
void nvmap_free(struct nvmap_client *client, struct nvmap_handle_ref *r);
void *nvmap_mmap(struct nvmap_handle_ref *r);
void nvmap_munmap(struct nvmap_handle_ref *r, void *addr);
struct nvmap_client *nvmap_client_get_file(int fd);
struct nvmap_client *nvmap_client_get(struct nvmap_client *client);
void nvmap_client_put(struct nvmap_client *c);
unsigned long nvmap_pin(struct nvmap_client *c, struct nvmap_handle_ref *r);
unsigned long nvmap_handle_address(struct nvmap_client *c, unsigned long id);
void nvmap_unpin(struct nvmap_client *client, struct nvmap_handle_ref *r);
int nvmap_pin_array(struct nvmap_client *client, struct nvmap_handle *gather,
const struct nvmap_pinarray_elem *arr, int nr,
struct nvmap_handle **unique);
void nvmap_unpin_handles(struct nvmap_client *client,
struct nvmap_handle **h, int nr);
struct nvmap_platform_carveout {
const char *name;
unsigned int usage_mask;
unsigned long base;
size_t size;
size_t buddy_size;
};
struct nvmap_platform_data {
const struct nvmap_platform_carveout *carveouts;
unsigned int nr_carveouts;
};
extern struct nvmap_device *nvmap_dev;
#endif
#endif
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