[linux-block.git] / include / linux / platform_data / dma-mmp_tdma.h

/*
 *  SRAM Memory Management
 *
 *  Copyright (c) 2011 Marvell Semiconductors Inc.
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License version 2 as
 *  published by the Free Software Foundation.
 *
 */

#ifndef __DMA_MMP_TDMA_H
#define __DMA_MMP_TDMA_H

#include <linux/genalloc.h>

/* ARBITRARY:  SRAM allocations are multiples of this 2^N size */
#define SRAM_GRANULARITY	512

enum sram_type {
	MMP_SRAM_UNDEFINED = 0,
	MMP_ASRAM,
	MMP_ISRAM,
};

struct sram_platdata {
	char *pool_name;
	int granularity;
};

#ifdef CONFIG_ARM
extern struct gen_pool *sram_get_gpool(char *pool_name);
#else
static inline struct gen_pool *sram_get_gpool(char *pool_name)
{
	return NULL;
}
#endif

#endif /* __DMA_MMP_TDMA_H */
Commit	Line	Data
3c7241bd	1	/*
3c7241bd LY	2	* SRAM Memory Management
	3	*
	4	* Copyright (c) 2011 Marvell Semiconductors Inc.
	5	*
	6	* This program is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License version 2 as
	8	* published by the Free Software Foundation.
	9	*
	10	*/
	11
61310a36 SK	12	#ifndef __DMA_MMP_TDMA_H
61310a36 SK	13	#define __DMA_MMP_TDMA_H
3c7241bd LY	14
	15	#include <linux/genalloc.h>
	16
	17	/* ARBITRARY: SRAM allocations are multiples of this 2^N size */
	18	#define SRAM_GRANULARITY 512
	19
	20	enum sram_type {
	21	MMP_SRAM_UNDEFINED = 0,
	22	MMP_ASRAM,
	23	MMP_ISRAM,
	24	};
	25
	26	struct sram_platdata {
	27	char *pool_name;
	28	int granularity;
	29	};
	30
09aa8ac0	31	#ifdef CONFIG_ARM
3c7241bd	32	extern struct gen_pool sram_get_gpool(char pool_name);
09aa8ac0 RH	33	#else
	34	static inline struct gen_pool sram_get_gpool(char pool_name)
	35	{
	36	return NULL;
	37	}
	38	#endif
3c7241bd	39
61310a36	40	#endif /* __DMA_MMP_TDMA_H */