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b24413180f
Many source files in the tree are missing licensing information, which makes it harder for compliance tools to determine the correct license. By default all files without license information are under the default license of the kernel, which is GPL version 2. Update the files which contain no license information with the 'GPL-2.0' SPDX license identifier. The SPDX identifier is a legally binding shorthand, which can be used instead of the full boiler plate text. This patch is based on work done by Thomas Gleixner and Kate Stewart and Philippe Ombredanne. How this work was done: Patches were generated and checked against linux-4.14-rc6 for a subset of the use cases: - file had no licensing information it it. - file was a */uapi/* one with no licensing information in it, - file was a */uapi/* one with existing licensing information, Further patches will be generated in subsequent months to fix up cases where non-standard license headers were used, and references to license had to be inferred by heuristics based on keywords. The analysis to determine which SPDX License Identifier to be applied to a file was done in a spreadsheet of side by side results from of the output of two independent scanners (ScanCode & Windriver) producing SPDX tag:value files created by Philippe Ombredanne. Philippe prepared the base worksheet, and did an initial spot review of a few 1000 files. The 4.13 kernel was the starting point of the analysis with 60,537 files assessed. Kate Stewart did a file by file comparison of the scanner results in the spreadsheet to determine which SPDX license identifier(s) to be applied to the file. She confirmed any determination that was not immediately clear with lawyers working with the Linux Foundation. Criteria used to select files for SPDX license identifier tagging was: - Files considered eligible had to be source code files. - Make and config files were included as candidates if they contained >5 lines of source - File already had some variant of a license header in it (even if <5 lines). All documentation files were explicitly excluded. The following heuristics were used to determine which SPDX license identifiers to apply. - when both scanners couldn't find any license traces, file was considered to have no license information in it, and the top level COPYING file license applied. For non */uapi/* files that summary was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 11139 and resulted in the first patch in this series. If that file was a */uapi/* path one, it was "GPL-2.0 WITH Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 WITH Linux-syscall-note 930 and resulted in the second patch in this series. - if a file had some form of licensing information in it, and was one of the */uapi/* ones, it was denoted with the Linux-syscall-note if any GPL family license was found in the file or had no licensing in it (per prior point). Results summary: SPDX license identifier # files ---------------------------------------------------|------ GPL-2.0 WITH Linux-syscall-note 270 GPL-2.0+ WITH Linux-syscall-note 169 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17 LGPL-2.1+ WITH Linux-syscall-note 15 GPL-1.0+ WITH Linux-syscall-note 14 ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5 LGPL-2.0+ WITH Linux-syscall-note 4 LGPL-2.1 WITH Linux-syscall-note 3 ((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3 ((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1 and that resulted in the third patch in this series. - when the two scanners agreed on the detected license(s), that became the concluded license(s). - when there was disagreement between the two scanners (one detected a license but the other didn't, or they both detected different licenses) a manual inspection of the file occurred. - In most cases a manual inspection of the information in the file resulted in a clear resolution of the license that should apply (and which scanner probably needed to revisit its heuristics). - When it was not immediately clear, the license identifier was confirmed with lawyers working with the Linux Foundation. - If there was any question as to the appropriate license identifier, the file was flagged for further research and to be revisited later in time. In total, over 70 hours of logged manual review was done on the spreadsheet to determine the SPDX license identifiers to apply to the source files by Kate, Philippe, Thomas and, in some cases, confirmation by lawyers working with the Linux Foundation. Kate also obtained a third independent scan of the 4.13 code base from FOSSology, and compared selected files where the other two scanners disagreed against that SPDX file, to see if there was new insights. The Windriver scanner is based on an older version of FOSSology in part, so they are related. Thomas did random spot checks in about 500 files from the spreadsheets for the uapi headers and agreed with SPDX license identifier in the files he inspected. For the non-uapi files Thomas did random spot checks in about 15000 files. In initial set of patches against 4.14-rc6, 3 files were found to have copy/paste license identifier errors, and have been fixed to reflect the correct identifier. Additionally Philippe spent 10 hours this week doing a detailed manual inspection and review of the 12,461 patched files from the initial patch version early this week with: - a full scancode scan run, collecting the matched texts, detected license ids and scores - reviewing anything where there was a license detected (about 500+ files) to ensure that the applied SPDX license was correct - reviewing anything where there was no detection but the patch license was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied SPDX license was correct This produced a worksheet with 20 files needing minor correction. This worksheet was then exported into 3 different .csv files for the different types of files to be modified. These .csv files were then reviewed by Greg. Thomas wrote a script to parse the csv files and add the proper SPDX tag to the file, in the format that the file expected. This script was further refined by Greg based on the output to detect more types of files automatically and to distinguish between header and source .c files (which need different comment types.) Finally Greg ran the script using the .csv files to generate the patches. Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
252 lines
8.1 KiB
C
252 lines
8.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/* oplib.h: Describes the interface and available routines in the
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* Linux Prom library.
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*
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* Copyright (C) 1995, 2007 David S. Miller (davem@davemloft.net)
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* Copyright (C) 1996 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
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*/
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#ifndef __SPARC64_OPLIB_H
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#define __SPARC64_OPLIB_H
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#include <asm/openprom.h>
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/* OBP version string. */
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extern char prom_version[];
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/* Root node of the prom device tree, this stays constant after
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* initialization is complete.
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*/
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extern phandle prom_root_node;
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/* PROM stdout */
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extern int prom_stdout;
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/* /chosen node of the prom device tree, this stays constant after
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* initialization is complete.
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*/
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extern phandle prom_chosen_node;
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/* Helper values and strings in arch/sparc64/kernel/head.S */
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extern const char prom_peer_name[];
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extern const char prom_compatible_name[];
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extern const char prom_root_compatible[];
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extern const char prom_cpu_compatible[];
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extern const char prom_finddev_name[];
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extern const char prom_chosen_path[];
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extern const char prom_cpu_path[];
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extern const char prom_getprop_name[];
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extern const char prom_mmu_name[];
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extern const char prom_callmethod_name[];
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extern const char prom_translate_name[];
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extern const char prom_map_name[];
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extern const char prom_unmap_name[];
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extern int prom_mmu_ihandle_cache;
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extern unsigned int prom_boot_mapped_pc;
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extern unsigned int prom_boot_mapping_mode;
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extern unsigned long prom_boot_mapping_phys_high, prom_boot_mapping_phys_low;
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struct linux_mlist_p1275 {
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struct linux_mlist_p1275 *theres_more;
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unsigned long start_adr;
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unsigned long num_bytes;
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};
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struct linux_mem_p1275 {
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struct linux_mlist_p1275 **p1275_totphys;
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struct linux_mlist_p1275 **p1275_prommap;
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struct linux_mlist_p1275 **p1275_available; /* What we can use */
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};
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/* The functions... */
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/* You must call prom_init() before using any of the library services,
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* preferably as early as possible. Pass it the romvec pointer.
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*/
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void prom_init(void *cif_handler);
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void prom_init_report(void);
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/* Boot argument acquisition, returns the boot command line string. */
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char *prom_getbootargs(void);
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/* Miscellaneous routines, don't really fit in any category per se. */
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/* Reboot the machine with the command line passed. */
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void prom_reboot(const char *boot_command);
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/* Evaluate the forth string passed. */
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void prom_feval(const char *forth_string);
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/* Enter the prom, with possibility of continuation with the 'go'
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* command in newer proms.
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*/
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void prom_cmdline(void);
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/* Enter the prom, with no chance of continuation for the stand-alone
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* which calls this.
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*/
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void prom_halt(void) __attribute__ ((noreturn));
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/* Halt and power-off the machine. */
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void prom_halt_power_off(void) __attribute__ ((noreturn));
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/* Acquire the IDPROM of the root node in the prom device tree. This
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* gets passed a buffer where you would like it stuffed. The return value
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* is the format type of this idprom or 0xff on error.
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*/
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unsigned char prom_get_idprom(char *idp_buffer, int idpbuf_size);
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/* Write a buffer of characters to the console. */
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void prom_console_write_buf(const char *buf, int len);
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/* Prom's internal routines, don't use in kernel/boot code. */
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__printf(1, 2) void prom_printf(const char *fmt, ...);
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void prom_write(const char *buf, unsigned int len);
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/* Multiprocessor operations... */
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#ifdef CONFIG_SMP
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/* Start the CPU with the given device tree node at the passed program
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* counter with the given arg passed in via register %o0.
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*/
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void prom_startcpu(int cpunode, unsigned long pc, unsigned long arg);
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/* Start the CPU with the given cpu ID at the passed program
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* counter with the given arg passed in via register %o0.
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*/
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void prom_startcpu_cpuid(int cpuid, unsigned long pc, unsigned long arg);
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/* Stop the CPU with the given cpu ID. */
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void prom_stopcpu_cpuid(int cpuid);
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/* Stop the current CPU. */
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void prom_stopself(void);
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/* Idle the current CPU. */
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void prom_idleself(void);
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/* Resume the CPU with the passed device tree node. */
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void prom_resumecpu(int cpunode);
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#endif
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/* Power management interfaces. */
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/* Put the current CPU to sleep. */
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void prom_sleepself(void);
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/* Put the entire system to sleep. */
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int prom_sleepsystem(void);
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/* Initiate a wakeup event. */
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int prom_wakeupsystem(void);
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/* MMU and memory related OBP interfaces. */
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/* Get unique string identifying SIMM at given physical address. */
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int prom_getunumber(int syndrome_code,
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unsigned long phys_addr,
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char *buf, int buflen);
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/* Retain physical memory to the caller across soft resets. */
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int prom_retain(const char *name, unsigned long size,
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unsigned long align, unsigned long *paddr);
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/* Load explicit I/D TLB entries into the calling processor. */
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long prom_itlb_load(unsigned long index,
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unsigned long tte_data,
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unsigned long vaddr);
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long prom_dtlb_load(unsigned long index,
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unsigned long tte_data,
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unsigned long vaddr);
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/* Map/Unmap client program address ranges. First the format of
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* the mapping mode argument.
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*/
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#define PROM_MAP_WRITE 0x0001 /* Writable */
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#define PROM_MAP_READ 0x0002 /* Readable - sw */
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#define PROM_MAP_EXEC 0x0004 /* Executable - sw */
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#define PROM_MAP_LOCKED 0x0010 /* Locked, use i/dtlb load calls for this instead */
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#define PROM_MAP_CACHED 0x0020 /* Cacheable in both L1 and L2 caches */
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#define PROM_MAP_SE 0x0040 /* Side-Effects */
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#define PROM_MAP_GLOB 0x0080 /* Global */
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#define PROM_MAP_IE 0x0100 /* Invert-Endianness */
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#define PROM_MAP_DEFAULT (PROM_MAP_WRITE | PROM_MAP_READ | PROM_MAP_EXEC | PROM_MAP_CACHED)
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int prom_map(int mode, unsigned long size,
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unsigned long vaddr, unsigned long paddr);
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void prom_unmap(unsigned long size, unsigned long vaddr);
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/* PROM device tree traversal functions... */
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/* Get the child node of the given node, or zero if no child exists. */
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phandle prom_getchild(phandle parent_node);
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/* Get the next sibling node of the given node, or zero if no further
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* siblings exist.
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*/
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phandle prom_getsibling(phandle node);
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/* Get the length, at the passed node, of the given property type.
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* Returns -1 on error (ie. no such property at this node).
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*/
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int prom_getproplen(phandle thisnode, const char *property);
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/* Fetch the requested property using the given buffer. Returns
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* the number of bytes the prom put into your buffer or -1 on error.
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*/
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int prom_getproperty(phandle thisnode, const char *property,
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char *prop_buffer, int propbuf_size);
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/* Acquire an integer property. */
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int prom_getint(phandle node, const char *property);
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/* Acquire an integer property, with a default value. */
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int prom_getintdefault(phandle node, const char *property, int defval);
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/* Acquire a boolean property, 0=FALSE 1=TRUE. */
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int prom_getbool(phandle node, const char *prop);
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/* Acquire a string property, null string on error. */
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void prom_getstring(phandle node, const char *prop, char *buf,
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int bufsize);
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/* Does the passed node have the given "name"? YES=1 NO=0 */
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int prom_nodematch(phandle thisnode, const char *name);
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/* Search all siblings starting at the passed node for "name" matching
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* the given string. Returns the node on success, zero on failure.
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*/
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phandle prom_searchsiblings(phandle node_start, const char *name);
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/* Return the first property type, as a string, for the given node.
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* Returns a null string on error. Buffer should be at least 32B long.
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*/
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char *prom_firstprop(phandle node, char *buffer);
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/* Returns the next property after the passed property for the given
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* node. Returns null string on failure. Buffer should be at least 32B long.
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*/
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char *prom_nextprop(phandle node, const char *prev_property, char *buf);
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/* Returns 1 if the specified node has given property. */
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int prom_node_has_property(phandle node, const char *property);
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/* Returns phandle of the path specified */
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phandle prom_finddevice(const char *name);
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/* Set the indicated property at the given node with the passed value.
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* Returns the number of bytes of your value that the prom took.
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*/
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int prom_setprop(phandle node, const char *prop_name, char *prop_value,
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int value_size);
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phandle prom_inst2pkg(int);
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void prom_sun4v_guest_soft_state(void);
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int prom_ihandle2path(int handle, char *buffer, int bufsize);
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/* Client interface level routines. */
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void p1275_cmd_direct(unsigned long *);
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#endif /* !(__SPARC64_OPLIB_H) */
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