[mirror_ubuntu-jammy-kernel.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_partition {
	void __iomem *base;

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

struct sram_dev {
	struct device *dev;
	void __iomem *virt_base;

	struct gen_pool *pool;
	struct clk *clk;

	struct sram_partition *partition;
	u32 partitions;
};

struct sram_reserve {
	struct list_head list;
	u32 start;
	u32 size;
	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
	8	struct sram_partition {
	9	void __iomem *base;
	10
	11	struct gen_pool *pool;
	12	struct bin_attribute battr;
	13	struct mutex lock;
	14	struct list_head list;
	15	};
	16
	17	struct sram_dev {
	18	struct device *dev;
	19	void __iomem *virt_base;
	20
	21	struct gen_pool *pool;
	22	struct clk *clk;
	23
	24	struct sram_partition *partition;
	25	u32 partitions;
	26	};
	27
	28	struct sram_reserve {
	29	struct list_head list;
	30	u32 start;
	31	u32 size;
	32	bool export;
	33	bool pool;
37afff0d	34	bool protect_exec;
cdd1737c DG	35	const char *label;
cdd1737c DG	36	};
728bbe75 DG	37
	38	#ifdef CONFIG_SRAM_EXEC
	39	int sram_check_protect_exec(struct sram_dev sram, struct sram_reserve block,
	40	struct sram_partition *part);
	41	int sram_add_protect_exec(struct sram_partition *part);
	42	#else
	43	static inline int sram_check_protect_exec(struct sram_dev *sram,
	44	struct sram_reserve *block,
	45	struct sram_partition *part)
	46	{
	47	return -ENODEV;
	48	}
	49
	50	static inline int sram_add_protect_exec(struct sram_partition *part)
	51	{
	52	return -ENODEV;
	53	}
	54	#endif /* CONFIG_SRAM_EXEC */
cdd1737c	55	#endif /* __SRAM_H */