drivers/misc/sram.h

Source file repositories/reference/linux-study-clean/drivers/misc/sram.h

File Facts

System
Linux kernel
Corpus path
drivers/misc/sram.h
Extension
.h
Size
1200 bytes
Lines
64
Domain
Driver Families
Bucket
drivers/misc
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

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 */

Annotation

Implementation Notes