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/*
*
* Copyright (c) 2011-2012, Code Aurora Forum. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 as published by the Free Software Foundation.
*
* 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.
*
*/
#ifndef _FMEM_H_
#define _FMEM_H_
#include <linux/vmalloc.h>
struct fmem_platform_data {
unsigned long phys;
unsigned long size;
unsigned long reserved_size_low;
unsigned long reserved_size_high;
unsigned long align;
};
struct fmem_data {
unsigned long phys;
void *virt;
struct vm_struct *area;
unsigned long size;
unsigned long reserved_size_low;
unsigned long reserved_size_high;
};
enum fmem_state {
FMEM_UNINITIALIZED = 0,
FMEM_C_STATE,
FMEM_T_STATE,
FMEM_O_STATE,
};
#ifdef CONFIG_QCACHE
struct fmem_data *fmem_get_info(void);
int fmem_set_state(enum fmem_state);
void lock_fmem_state(void);
void unlock_fmem_state(void);
void *fmem_map_virtual_area(int cacheability);
void fmem_unmap_virtual_area(void);
#else
static inline struct fmem_data *fmem_get_info(void) { return NULL; }
static inline int fmem_set_state(enum fmem_state f) { return -ENODEV; }
static inline void lock_fmem_state(void) { return; }
static inline void unlock_fmem_state(void) { return; }
static inline void *fmem_map_virtual_area(int cacheability) { return NULL; }
static inline void fmem_unmap_virtual_area(void) { return; }
#endif
int request_fmem_c_region(void *unused);
int release_fmem_c_region(void *unused);
#endif
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