drivers/remoteproc/remoteproc_internal.h

Source file repositories/reference/linux-study-clean/drivers/remoteproc/remoteproc_internal.h

File Facts

System
Linux kernel
Corpus path
drivers/remoteproc/remoteproc_internal.h
Extension
.h
Size
5535 bytes
Lines
225
Domain
Driver Families
Bucket
drivers/remoteproc
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 rproc_debug_trace {
	struct rproc *rproc;
	struct dentry *tfile;
	struct list_head node;
	struct rproc_mem_entry trace_mem;
};

/**
 * struct rproc_vdev_data - remoteproc virtio device data
 * @rsc_offset: offset of the vdev's resource entry
 * @id: virtio device id (as in virtio_ids.h)
 * @index: vdev position versus other vdev declared in resource table
 * @rsc: pointer to the vdev resource entry. Valid only during vdev init as
 *       the resource can be cached by rproc.
 */
struct rproc_vdev_data {
	u32 rsc_offset;
	unsigned int id;
	u32 index;
	struct fw_rsc_vdev *rsc;
};

static inline bool rproc_has_feature(struct rproc *rproc, unsigned int feature)
{
	return test_bit(feature, rproc->features);
}

static inline int rproc_set_feature(struct rproc *rproc, unsigned int feature)
{
	if (feature >= RPROC_MAX_FEATURES)
		return -EINVAL;

	set_bit(feature, rproc->features);

	return 0;
}

/* from remoteproc_core.c */
void rproc_release(struct kref *kref);
int rproc_of_parse_firmware(struct device *dev, int index,
			    const char **fw_name);

/* from remoteproc_virtio.c */
irqreturn_t rproc_vq_interrupt(struct rproc *rproc, int vq_id);

/* from remoteproc_debugfs.c */
void rproc_remove_trace_file(struct dentry *tfile);
struct dentry *rproc_create_trace_file(const char *name, struct rproc *rproc,
				       struct rproc_debug_trace *trace);
void rproc_delete_debug_dir(struct rproc *rproc);
void rproc_create_debug_dir(struct rproc *rproc);
void rproc_init_debugfs(void);
void rproc_exit_debugfs(void);

/* from remoteproc_sysfs.c */
extern const struct class rproc_class;
int rproc_init_sysfs(void);
void rproc_exit_sysfs(void);

#ifdef CONFIG_REMOTEPROC_CDEV
void rproc_init_cdev(void);
void rproc_exit_cdev(void);
int rproc_char_device_add(struct rproc *rproc);
void rproc_char_device_remove(struct rproc *rproc);
#else
static inline void rproc_init_cdev(void)
{
}

static inline void rproc_exit_cdev(void)
{
}

/*
 * The character device interface is an optional feature, if it is not enabled
 * the function should not return an error.
 */
static inline int rproc_char_device_add(struct rproc *rproc)
{
	return 0;
}

static inline void  rproc_char_device_remove(struct rproc *rproc)
{
}
#endif

void rproc_free_vring(struct rproc_vring *rvring);
int rproc_alloc_vring(struct rproc_vdev *rvdev, int i);
int rproc_parse_vring(struct rproc_vdev *rvdev, struct fw_rsc_vdev *rsc, int i);

Annotation

Implementation Notes