pdc.h

嵌入式系统设计与实例开发源码

	unsigned long min_size;
	unsigned long max_size;
	unsigned long pad[32-2];
} __attribute__((aligned(8))) ;

struct pdc_system_map { /* PDC_SYTEM_MAP/FIND_MODULE */
	void * mod_addr;
	unsigned long mod_pgs;
	unsigned long add_addrs;
	unsigned long filler[29];
} __attribute__((aligned(8))) ;

/*
 * Device path specifications used by PDC.
 */
struct pdc_module_path {
	char  flags;	/* see bit definitions below */
	char  bc[6];	/* Bus Converter routing info to a specific */
			/* I/O adaptor (< 0 means none, > 63 resvd) */
	char  mod;	/* fixed field of specified module */
	unsigned int layers[6]; /* device-specific info (ctlr #, unit # ...) */
} __attribute__((aligned(8))) ;

#ifndef __LP64__
/* Probably needs 64-bit porting -PB */
struct pdc_memory_map {	/* PDC_MEMORY_MAP */
	unsigned int hpa;	/* mod's register set address */
	unsigned int more_pgs;	/* number of additional I/O pgs */
} __attribute__((aligned(8))) ;

struct pdc_lan_station_id {	/* PDC_LAN_STATION_ID */
	unsigned char addr[PDC_LAN_STATION_ID_SIZE];
	unsigned char pad0[2];
	int pad1[30];
};
#endif

struct pdc_tod {
	unsigned long tod_sec; 
	unsigned long tod_usec;
	long pad[30];
} __attribute__((aligned(8))) ;

/* architected results from PDC_PIM/transfer hpmc on a PA1.1 machine */

struct pdc_hpmc_pim_11 { /* PDC_PIM */
	__u32 gr[32];
	__u32 cr[32];
	__u32 sr[8];
	__u32 iasq_back;
	__u32 iaoq_back;
	__u32 check_type;
	__u32 cpu_state;
	__u32 rsvd1;
	__u32 cache_check;
	__u32 tlb_check;
	__u32 bus_check;
	__u32 assists_check;
	__u32 rsvd2;
	__u32 assist_state;
	__u32 responder_addr;
	__u32 requestor_addr;
	__u32 path_info;
	__u64 fr[32];
};

/*
 * architected results from PDC_PIM/transfer hpmc on a PA2.0 machine
 *
 * Note that PDC_PIM doesn't care whether or not wide mode was enabled
 * so the results are different on  PA1.1 vs. PA2.0 when in narrow mode.
 *
 * Note also that there are unarchitected results available, which
 * are hversion dependent. Do a "ser pim 0 hpmc" after rebooting, since
 * the firmware is probably the best way of printing hversion dependent
 * data.
 */

struct pdc_hpmc_pim_20 { /* PDC_PIM */
	__u64 gr[32];
	__u64 cr[32];
	__u64 sr[8];
	__u64 iasq_back;
	__u64 iaoq_back;
	__u32 check_type;
	__u32 cpu_state;
	__u32 cache_check;
	__u32 tlb_check;
	__u32 bus_check;
	__u32 assists_check;
	__u32 assist_state;
	__u32 path_info;
	__u64 responder_addr;
	__u64 requestor_addr;
	__u64 fr[32];
};

#endif /* __ASSEMBLY__ */

/* flags of the device_path (see below) */
#define	PF_AUTOBOOT	0x80
#define	PF_AUTOSEARCH	0x40
#define	PF_TIMER	0x0F

#ifndef __ASSEMBLY__

struct device_path {		/* page 1-69 */
	unsigned char flags;	/* flags see above! */
	unsigned char bc[6];	/* bus converter routing info */
	unsigned char mod;
	unsigned int  layers[6];/* device-specific layer-info */
} __attribute__((aligned(8))) ;

struct pz_device {
	struct	device_path dp;	/* see above */
	/* struct	iomod *hpa; */
	unsigned int hpa;	/* HPA base address */
	/* char	*spa; */
	unsigned int spa;	/* SPA base address */
	/* int	(*iodc_io)(struct iomod*, ...); */
	unsigned int iodc_io;	/* device entry point */
	short	pad;		/* reserved */
	unsigned short cl_class;/* see below */
} __attribute__((aligned(8))) ;

#endif /* __ASSEMBLY__ */

/* cl_class
 * page 3-33 of IO-Firmware ARS
 * IODC ENTRY_INIT(Search first) RET[1]
 */
#define	CL_NULL		0	/* invalid */
#define	CL_RANDOM	1	/* random access (as disk) */
#define	CL_SEQU		2	/* sequential access (as tape) */
#define	CL_DUPLEX	7	/* full-duplex point-to-point (RS-232, Net) */
#define	CL_KEYBD	8	/* half-duplex console (HIL Keyboard) */
#define	CL_DISPL	9	/* half-duplex console (display) */
#define	CL_FC		10	/* FiberChannel access media */

#if 0
/* FIXME: DEVCLASS_* duplicates CL_* (above).  Delete DEVCLASS_*? */
#define DEVCLASS_RANDOM		1
#define DEVCLASS_SEQU		2
#define DEVCLASS_DUPLEX		7
#define DEVCLASS_KEYBD		8
#define DEVCLASS_DISP		9
#endif

/* IODC ENTRY_INIT() */
#define ENTRY_INIT_SRCH_FRST	2
#define ENTRY_INIT_SRCH_NEXT	3
#define ENTRY_INIT_MOD_DEV	4
#define ENTRY_INIT_DEV		5
#define ENTRY_INIT_MOD		6
#define ENTRY_INIT_MSG		9

/* IODC ENTRY_IO() */
#define ENTRY_IO_BOOTIN		0
#define ENTRY_IO_CIN		2
#define ENTRY_IO_COUT		3
#define ENTRY_IO_CLOSE		4
#define ENTRY_IO_GETMSG		9

/* IODC ENTRY_SPA() */

/* IODC ENTRY_CONFIG() */

/* IODC ENTRY_TEST() */

/* IODC ENTRY_TLB() */


/* DEFINITION OF THE ZERO-PAGE (PAG0) */
/* based on work by Jason Eckhardt ([e-mail]) */

#ifndef __ASSEMBLY__

#define	PAGE0	((struct zeropage *)0xc0000000)

struct zeropage {
	/* [0x000] initialize vectors (VEC) */
	unsigned int	vec_special;		/* must be zero */
	/* int	(*vec_pow_fail)(void);*/
	unsigned int	vec_pow_fail; /* power failure handler */
	/* int	(*vec_toc)(void); */
	unsigned int	vec_toc;
	unsigned int	vec_toclen;
	/* int	(*vec_rendz)(void); */
	unsigned int vec_rendz;
	int	vec_pow_fail_flen;
	int	vec_pad[10];		
	
	/* [0x040] reserved processor dependent */
	int	pad0[112];

	/* [0x200] reserved */
	int	pad1[84];

	/* [0x350] memory configuration (MC) */
	int	memc_cont;		/* contiguous mem size (bytes) */
	int	memc_phsize;		/* physical memory size */
	int	memc_adsize;		/* additional mem size, bytes of SPA space used by PDC */
	unsigned int mem_pdc_hi;	/* used for 64-bit */

	/* [0x360] various parameters for the boot-CPU */
	/* unsigned int *mem_booterr[8]; */
	unsigned int mem_booterr[8];	/* ptr to boot errors */
	unsigned int mem_free;		/* first location, where OS can be loaded */
	/* struct iomod *mem_hpa; */
	unsigned int mem_hpa;		/* HPA of the boot-CPU */
	/* int (*mem_pdc)(int, ...); */
	unsigned int mem_pdc;		/* PDC entry point */
	unsigned int mem_10msec;	/* number of clock ticks in 10msec */

	/* [0x390] initial memory module (IMM) */
	/* struct iomod *imm_hpa; */
	unsigned int imm_hpa;		/* HPA of the IMM */
	int	imm_soft_boot;		/* 0 = was hard boot, 1 = was soft boot */
	unsigned int	imm_spa_size;		/* SPA size of the IMM in bytes */
	unsigned int	imm_max_mem;		/* bytes of mem in IMM */

	/* [0x3A0] boot console, display device and keyboard */
	struct pz_device mem_cons;	/* description of console device */
	struct pz_device mem_boot;	/* description of boot device */
	struct pz_device mem_kbd;	/* description of keyboard device */

	/* [0x430] reserved */
	int	pad430[116];

	/* [0x600] processor dependent */
	__u32	pad600[1];
	__u32	proc_sti;		/* pointer to STI ROM */
	__u32	pad608[126];
};

#endif /* __ASSEMBLY__ */

/* Page Zero constant offsets used by the HPMC handler */

#define BOOT_CONSOLE_HPA_OFFSET  0x3c0
#define BOOT_CONSOLE_SPA_OFFSET  0x3c4
#define BOOT_CONSOLE_PATH_OFFSET 0x3a8

#ifndef __ASSEMBLY__

struct pdc_pat_io_num {
	unsigned long num;
	unsigned long reserved[31];
};



extern void pdc_console_init(void);
extern int  pdc_getc(void);	/* wait for char */
extern void pdc_putc(unsigned char);	/* print char */


/* wrapper-functions from pdc.c */

int pdc_add_valid(void *address);
int pdc_hpa_processor(void *address);
#if 0
int pdc_hpa_modules(void *address);
#endif
int pdc_iodc_read(void *address, void *hpa, unsigned int index,
		  void *iodc_data, unsigned int iodc_data_size);
int pdc_system_map_find_mods(void *pdc_mod_info, void *mod_path, int index);
int pdc_model_info(struct pdc_model *model);
int pdc_model_sysmodel(char  *name);
int pdc_model_cpuid(struct pdc_model_cpuid *cpu_id);
int pdc_model_versions(struct pdc_model_cpuid *cpu_id, int id);
int pdc_cache_info(struct pdc_cache_info *cache);
#ifndef __LP64__
int pdc_btlb_info( struct pdc_btlb_info *btlb);
int pdc_lan_station_id( char *lan_addr, void *net_hpa);
#endif
int pdc_mem_map_hpa(void *r_addr, void *mod_path);

extern int pdc_chassis_disp(unsigned long disp);
extern int pdc_chassis_info(void *pdc_result, void *chassis_info, unsigned long len);

#ifdef __LP64__
int pdc_pat_get_irt_size(void *r_addr, unsigned long cell_num);
int pdc_pat_get_irt(void *r_addr, unsigned long cell_num);
#else
/* No PAT support for 32-bit kernels...sorry */
#define pdc_pat_get_irt_size(r_addr, cell_numn)	PDC_RET_NE_PROC
#define pdc_pat_get_irt(r_addr, cell_num)	PDC_RET_NE_PROC
#endif
int pdc_pci_irt_size(void *r_addr, void *hpa);
int pdc_pci_irt(void *r_addr, void *hpa, void *tbl);

int pdc_tod_read(struct pdc_tod *tod);
int pdc_tod_set(unsigned long sec, unsigned long usec);

/* on all currently-supported platforms, IODC I/O calls are always
 * 32-bit calls, and MEM_PDC calls are always the same width as the OS.
 * This means Cxxx boxes can't run wide kernels right now. -PB
 *
 * Note that some PAT boxes may have 64-bit IODC I/O...
 */
#ifdef __LP64__
#   define mem_pdc_call(args...) real64_call(0L, ##args)
#else
#   define mem_pdc_call(args...) real32_call(0L, ##args)
#endif
/* yes 'int', not 'long' -- IODC I/O is always 32-bit stuff */
extern long real64_call(unsigned long function, ...);
extern long real32_call(unsigned long function, ...);
extern void pdc_init(void);

#endif /* __ASSEMBLY__ */

#endif /* _PARISC_PDC_H */