[linux-2.6-block.git] / drivers / misc / sram.h

/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * Defines for the SRAM driver
 */
#ifndef __SRAM_H
#define __SRAM_H

struct sram_config {
	int (*init)(void);
	bool map_only_reserved;
};

struct sram_partition {
	void __iomem *base;

	struct gen_pool *pool;
	struct bin_attribute battr;
	struct mutex lock;
	struct list_head list;
};

struct sram_dev {
	const struct sram_config *config;

	struct device *dev;
	void __iomem *virt_base;
	bool no_memory_wc;

	struct gen_pool *pool;

	struct sram_partition *partition;
	u32 partitions;
};

struct sram_reserve {
	struct list_head list;
	u32 start;
	u32 size;
	struct resource res;
	bool export;
	bool pool;
	bool protect_exec;
	const char *label;
};

#ifdef CONFIG_SRAM_EXEC
int sram_check_protect_exec(struct sram_dev *sram, struct sram_reserve *block,
			    struct sram_partition *part);
int sram_add_protect_exec(struct sram_partition *part);
#else
static inline int sram_check_protect_exec(struct sram_dev *sram,
					  struct sram_reserve *block,
					  struct sram_partition *part)
{
	return -ENODEV;
}

static inline int sram_add_protect_exec(struct sram_partition *part)
{
	return -ENODEV;
}
#endif /* CONFIG_SRAM_EXEC */
#endif /* __SRAM_H */
Commit	Line	Data
d2912cb1	1	/* SPDX-License-Identifier: GPL-2.0-only */
cdd1737c DG	2	/*
cdd1737c DG	3	* Defines for the SRAM driver
cdd1737c DG	4	*/
	5	#ifndef __SRAM_H
	6	#define __SRAM_H
	7
fec29bf0 MP	8	struct sram_config {
	9	int (*init)(void);
	10	bool map_only_reserved;
	11	};
	12
cdd1737c DG	13	struct sram_partition {
	14	void __iomem *base;
	15
	16	struct gen_pool *pool;
	17	struct bin_attribute battr;
	18	struct mutex lock;
	19	struct list_head list;
	20	};
	21
	22	struct sram_dev {
fec29bf0 MP	23	const struct sram_config *config;
fec29bf0 MP	24
cdd1737c DG	25	struct device *dev;
cdd1737c DG	26	void __iomem *virt_base;
fec29bf0	27	bool no_memory_wc;
cdd1737c DG	28
cdd1737c DG	29	struct gen_pool *pool;
cdd1737c DG	30
	31	struct sram_partition *partition;
	32	u32 partitions;
	33	};
	34
	35	struct sram_reserve {
	36	struct list_head list;
	37	u32 start;
	38	u32 size;
fec29bf0	39	struct resource res;
cdd1737c DG	40	bool export;
cdd1737c DG	41	bool pool;
37afff0d	42	bool protect_exec;
cdd1737c DG	43	const char *label;
cdd1737c DG	44	};
728bbe75 DG	45
	46	#ifdef CONFIG_SRAM_EXEC
	47	int sram_check_protect_exec(struct sram_dev sram, struct sram_reserve block,
	48	struct sram_partition *part);
	49	int sram_add_protect_exec(struct sram_partition *part);
	50	#else
	51	static inline int sram_check_protect_exec(struct sram_dev *sram,
	52	struct sram_reserve *block,
	53	struct sram_partition *part)
	54	{
	55	return -ENODEV;
	56	}
	57
	58	static inline int sram_add_protect_exec(struct sram_partition *part)
	59	{
	60	return -ENODEV;
	61	}
	62	#endif /* CONFIG_SRAM_EXEC */
cdd1737c	63	#endif /* __SRAM_H */