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usr
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src
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linux-headers-6.8.0-83-generic
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arch
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sparc
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include
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asm
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oplib_64.h
/* 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 prom_cif_init(void *cif_handler); void p1275_cmd_direct(unsigned long *); #endif /* !(__SPARC64_OPLIB_H) */
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