drivers/misc/sgi-gru/grulib.h

Source file repositories/reference/linux-study-clean/drivers/misc/sgi-gru/grulib.h

File Facts

System
Linux kernel
Corpus path
drivers/misc/sgi-gru/grulib.h
Extension
.h
Size
4008 bytes
Lines
154
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 gru_get_gseg_statistics_req {
	unsigned long			gseg;
	struct gru_gseg_statistics	stats;
};

/*
 * Structure used to pass TLB flush parameters to the driver
 */
struct gru_create_context_req {
	unsigned long		gseg;
	unsigned int		data_segment_bytes;
	unsigned int		control_blocks;
	unsigned int		maximum_thread_count;
	unsigned int		options;
	unsigned char		tlb_preload_count;
};

/*
 * Structure used to pass unload context parameters to the driver
 */
struct gru_unload_context_req {
	unsigned long	gseg;
};

/*
 * Structure used to set context options
 */
enum {sco_gseg_owner, sco_cch_req_slice, sco_blade_chiplet};
struct gru_set_context_option_req {
	unsigned long	gseg;
	int		op;
	int		val0;
	long		val1;
};

/*
 * Structure used to pass TLB flush parameters to the driver
 */
struct gru_flush_tlb_req {
	unsigned long	gseg;
	unsigned long	vaddr;
	size_t		len;
};

/*
 * Structure used to pass TLB flush parameters to the driver
 */
enum {dcs_pid, dcs_gid};
struct gru_dump_chiplet_state_req {
	unsigned int	op;
	unsigned int	gid;
	int		ctxnum;
	char		data_opt;
	char		lock_cch;
	char		flush_cbrs;
	char		fill[10];
	pid_t		pid;
	void		*buf;
	size_t		buflen;
	/* ---- output --- */
	unsigned int	num_contexts;
};

#define GRU_DUMP_MAGIC	0x3474ab6c
struct gru_dump_context_header {
	unsigned int	magic;
	unsigned int	gid;
	unsigned char	ctxnum;
	unsigned char	cbrcnt;
	unsigned char	dsrcnt;
	pid_t		pid;
	unsigned long	vaddr;
	int		cch_locked;
	unsigned long	data[];
};

/*
 * GRU configuration info (temp - for testing)
 */
struct gru_config_info {
	int		cpus;
	int		blades;
	int		nodes;
	int		chiplets;
	int		fill[16];
};

#endif /* __GRULIB_H__ */

Annotation

Implementation Notes