253 lines
8.1 KiB
C
253 lines
8.1 KiB
C
|
/* SPDX-License-Identifier: GPL-2.0 */
|
||
|
|
/* oplib.h: Describes the interface and available routines in the
|
||
|
|
* Linux Prom library.
|
||
|
|
*
|
||
|
|
* Copyright (C) 1995, 2007 David S. Miller (davem@davemloft.net)
|
||
|
|
* Copyright (C) 1996 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef __SPARC64_OPLIB_H
|
||
|
|
#define __SPARC64_OPLIB_H
|
||
|
|
|
||
|
|
#include <asm/openprom.h>
|
||
|
|
|
||
|
|
/* OBP version string. */
|
||
|
|
extern char prom_version[];
|
||
|
|
|
||
|
|
/* Root node of the prom device tree, this stays constant after
|
||
|
|
* initialization is complete.
|
||
|
|
*/
|
||
|
|
extern phandle prom_root_node;
|
||
|
|
|
||
|
|
/* PROM stdout */
|
||
|
|
extern int prom_stdout;
|
||
|
|
|
||
|
|
/* /chosen node of the prom device tree, this stays constant after
|
||
|
|
* initialization is complete.
|
||
|
|
*/
|
||
|
|
extern phandle prom_chosen_node;
|
||
|
|
|
||
|
|
/* Helper values and strings in arch/sparc64/kernel/head.S */
|
||
|
|
extern const char prom_peer_name[];
|
||
|
|
extern const char prom_compatible_name[];
|
||
|
|
extern const char prom_root_compatible[];
|
||
|
|
extern const char prom_cpu_compatible[];
|
||
|
|
extern const char prom_finddev_name[];
|
||
|
|
extern const char prom_chosen_path[];
|
||
|
|
extern const char prom_cpu_path[];
|
||
|
|
extern const char prom_getprop_name[];
|
||
|
|
extern const char prom_mmu_name[];
|
||
|
|
extern const char prom_callmethod_name[];
|
||
|
|
extern const char prom_translate_name[];
|
||
|
|
extern const char prom_map_name[];
|
||
|
|
extern const char prom_unmap_name[];
|
||
|
|
extern int prom_mmu_ihandle_cache;
|
||
|
|
extern unsigned int prom_boot_mapped_pc;
|
||
|
|
extern unsigned int prom_boot_mapping_mode;
|
||
|
|
extern unsigned long prom_boot_mapping_phys_high, prom_boot_mapping_phys_low;
|
||
|
|
|
||
|
|
struct linux_mlist_p1275 {
|
||
|
|
struct linux_mlist_p1275 *theres_more;
|
||
|
|
unsigned long start_adr;
|
||
|
|
unsigned long num_bytes;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct linux_mem_p1275 {
|
||
|
|
struct linux_mlist_p1275 **p1275_totphys;
|
||
|
|
struct linux_mlist_p1275 **p1275_prommap;
|
||
|
|
struct linux_mlist_p1275 **p1275_available; /* What we can use */
|
||
|
|
};
|
||
|
|
|
||
|
|
/* The functions... */
|
||
|
|
|
||
|
|
/* You must call prom_init() before using any of the library services,
|
||
|
|
* preferably as early as possible. Pass it the romvec pointer.
|
||
|
|
*/
|
||
|
|
void prom_init(void *cif_handler);
|
||
|
|
void prom_init_report(void);
|
||
|
|
|
||
|
|
/* Boot argument acquisition, returns the boot command line string. */
|
||
|
|
char *prom_getbootargs(void);
|
||
|
|
|
||
|
|
/* Miscellaneous routines, don't really fit in any category per se. */
|
||
|
|
|
||
|
|
/* Reboot the machine with the command line passed. */
|
||
|
|
void prom_reboot(const char *boot_command);
|
||
|
|
|
||
|
|
/* Evaluate the forth string passed. */
|
||
|
|
void prom_feval(const char *forth_string);
|
||
|
|
|
||
|
|
/* Enter the prom, with possibility of continuation with the 'go'
|
||
|
|
* command in newer proms.
|
||
|
|
*/
|
||
|
|
void prom_cmdline(void);
|
||
|
|
|
||
|
|
/* Enter the prom, with no chance of continuation for the stand-alone
|
||
|
|
* which calls this.
|
||
|
|
*/
|
||
|
|
void prom_halt(void) __attribute__ ((noreturn));
|
||
|
|
|
||
|
|
/* Halt and power-off the machine. */
|
||
|
|
void prom_halt_power_off(void) __attribute__ ((noreturn));
|
||
|
|
|
||
|
|
/* Acquire the IDPROM of the root node in the prom device tree. This
|
||
|
|
* gets passed a buffer where you would like it stuffed. The return value
|
||
|
|
* is the format type of this idprom or 0xff on error.
|
||
|
|
*/
|
||
|
|
unsigned char prom_get_idprom(char *idp_buffer, int idpbuf_size);
|
||
|
|
|
||
|
|
/* Write a buffer of characters to the console. */
|
||
|
|
void prom_console_write_buf(const char *buf, int len);
|
||
|
|
|
||
|
|
/* Prom's internal routines, don't use in kernel/boot code. */
|
||
|
|
__printf(1, 2) void prom_printf(const char *fmt, ...);
|
||
|
|
void prom_write(const char *buf, unsigned int len);
|
||
|
|
|
||
|
|
/* Multiprocessor operations... */
|
||
|
|
#ifdef CONFIG_SMP
|
||
|
|
/* Start the CPU with the given device tree node at the passed program
|
||
|
|
* counter with the given arg passed in via register %o0.
|
||
|
|
*/
|
||
|
|
void prom_startcpu(int cpunode, unsigned long pc, unsigned long arg);
|
||
|
|
|
||
|
|
/* Start the CPU with the given cpu ID at the passed program
|
||
|
|
* counter with the given arg passed in via register %o0.
|
||
|
|
*/
|
||
|
|
void prom_startcpu_cpuid(int cpuid, unsigned long pc, unsigned long arg);
|
||
|
|
|
||
|
|
/* Stop the CPU with the given cpu ID. */
|
||
|
|
void prom_stopcpu_cpuid(int cpuid);
|
||
|
|
|
||
|
|
/* Stop the current CPU. */
|
||
|
|
void prom_stopself(void);
|
||
|
|
|
||
|
|
/* Idle the current CPU. */
|
||
|
|
void prom_idleself(void);
|
||
|
|
|
||
|
|
/* Resume the CPU with the passed device tree node. */
|
||
|
|
void prom_resumecpu(int cpunode);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* Power management interfaces. */
|
||
|
|
|
||
|
|
/* Put the current CPU to sleep. */
|
||
|
|
void prom_sleepself(void);
|
||
|
|
|
||
|
|
/* Put the entire system to sleep. */
|
||
|
|
int prom_sleepsystem(void);
|
||
|
|
|
||
|
|
/* Initiate a wakeup event. */
|
||
|
|
int prom_wakeupsystem(void);
|
||
|
|
|
||
|
|
/* MMU and memory related OBP interfaces. */
|
||
|
|
|
||
|
|
/* Get unique string identifying SIMM at given physical address. */
|
||
|
|
int prom_getunumber(int syndrome_code,
|
||
|
|
unsigned long phys_addr,
|
||
|
|
char *buf, int buflen);
|
||
|
|
|
||
|
|
/* Retain physical memory to the caller across soft resets. */
|
||
|
|
int prom_retain(const char *name, unsigned long size,
|
||
|
|
unsigned long align, unsigned long *paddr);
|
||
|
|
|
||
|
|
/* Load explicit I/D TLB entries into the calling processor. */
|
||
|
|
long prom_itlb_load(unsigned long index,
|
||
|
|
unsigned long tte_data,
|
||
|
|
unsigned long vaddr);
|
||
|
|
|
||
|
|
long prom_dtlb_load(unsigned long index,
|
||
|
|
unsigned long tte_data,
|
||
|
|
unsigned long vaddr);
|
||
|
|
|
||
|
|
/* Map/Unmap client program address ranges. First the format of
|
||
|
|
* the mapping mode argument.
|
||
|
|
*/
|
||
|
|
#define PROM_MAP_WRITE 0x0001 /* Writable */
|
||
|
|
#define PROM_MAP_READ 0x0002 /* Readable - sw */
|
||
|
|
#define PROM_MAP_EXEC 0x0004 /* Executable - sw */
|
||
|
|
#define PROM_MAP_LOCKED 0x0010 /* Locked, use i/dtlb load calls for this instead */
|
||
|
|
#define PROM_MAP_CACHED 0x0020 /* Cacheable in both L1 and L2 caches */
|
||
|
|
#define PROM_MAP_SE 0x0040 /* Side-Effects */
|
||
|
|
#define PROM_MAP_GLOB 0x0080 /* Global */
|
||
|
|
#define PROM_MAP_IE 0x0100 /* Invert-Endianness */
|
||
|
|
#define PROM_MAP_DEFAULT (PROM_MAP_WRITE | PROM_MAP_READ | PROM_MAP_EXEC | PROM_MAP_CACHED)
|
||
|
|
|
||
|
|
int prom_map(int mode, unsigned long size,
|
||
|
|
unsigned long vaddr, unsigned long paddr);
|
||
|
|
void prom_unmap(unsigned long size, unsigned long vaddr);
|
||
|
|
|
||
|
|
|
||
|
|
/* PROM device tree traversal functions... */
|
||
|
|
|
||
|
|
/* Get the child node of the given node, or zero if no child exists. */
|
||
|
|
phandle prom_getchild(phandle parent_node);
|
||
|
|
|
||
|
|
/* Get the next sibling node of the given node, or zero if no further
|
||
|
|
* siblings exist.
|
||
|
|
*/
|
||
|
|
phandle prom_getsibling(phandle node);
|
||
|
|
|
||
|
|
/* Get the length, at the passed node, of the given property type.
|
||
|
|
* Returns -1 on error (ie. no such property at this node).
|
||
|
|
*/
|
||
|
|
int prom_getproplen(phandle thisnode, const char *property);
|
||
|
|
|
||
|
|
/* Fetch the requested property using the given buffer. Returns
|
||
|
|
* the number of bytes the prom put into your buffer or -1 on error.
|
||
|
|
*/
|
||
|
|
int prom_getproperty(phandle thisnode, const char *property,
|
||
|
|
char *prop_buffer, int propbuf_size);
|
||
|
|
|
||
|
|
/* Acquire an integer property. */
|
||
|
|
int prom_getint(phandle node, const char *property);
|
||
|
|
|
||
|
|
/* Acquire an integer property, with a default value. */
|
||
|
|
int prom_getintdefault(phandle node, const char *property, int defval);
|
||
|
|
|
||
|
|
/* Acquire a boolean property, 0=FALSE 1=TRUE. */
|
||
|
|
int prom_getbool(phandle node, const char *prop);
|
||
|
|
|
||
|
|
/* Acquire a string property, null string on error. */
|
||
|
|
void prom_getstring(phandle node, const char *prop, char *buf,
|
||
|
|
int bufsize);
|
||
|
|
|
||
|
|
/* Does the passed node have the given "name"? YES=1 NO=0 */
|
||
|
|
int prom_nodematch(phandle thisnode, const char *name);
|
||
|
|
|
||
|
|
/* Search all siblings starting at the passed node for "name" matching
|
||
|
|
* the given string. Returns the node on success, zero on failure.
|
||
|
|
*/
|
||
|
|
phandle prom_searchsiblings(phandle node_start, const char *name);
|
||
|
|
|
||
|
|
/* Return the first property type, as a string, for the given node.
|
||
|
|
* Returns a null string on error. Buffer should be at least 32B long.
|
||
|
|
*/
|
||
|
|
char *prom_firstprop(phandle node, char *buffer);
|
||
|
|
|
||
|
|
/* Returns the next property after the passed property for the given
|
||
|
|
* node. Returns null string on failure. Buffer should be at least 32B long.
|
||
|
|
*/
|
||
|
|
char *prom_nextprop(phandle node, const char *prev_property, char *buf);
|
||
|
|
|
||
|
|
/* Returns 1 if the specified node has given property. */
|
||
|
|
int prom_node_has_property(phandle node, const char *property);
|
||
|
|
|
||
|
|
/* Returns phandle of the path specified */
|
||
|
|
phandle prom_finddevice(const char *name);
|
||
|
|
|
||
|
|
/* Set the indicated property at the given node with the passed value.
|
||
|
|
* Returns the number of bytes of your value that the prom took.
|
||
|
|
*/
|
||
|
|
int prom_setprop(phandle node, const char *prop_name, char *prop_value,
|
||
|
|
int value_size);
|
||
|
|
|
||
|
|
phandle prom_inst2pkg(int);
|
||
|
|
void prom_sun4v_guest_soft_state(void);
|
||
|
|
|
||
|
|
int prom_ihandle2path(int handle, char *buffer, int bufsize);
|
||
|
|
|
||
|
|
/* Client interface level routines. */
|
||
|
|
void p1275_cmd_direct(unsigned long *);
|
||
|
|
|
||
|
|
#endif /* !(__SPARC64_OPLIB_H) */
|