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kernel_optimize_test/arch/m68k/include/asm/oplib.h
Greg Kroah-Hartman b24413180f License cleanup: add SPDX GPL-2.0 license identifier to files with no license 
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>
2017-11-02 11:10:55 +01:00

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/* SPDX-License-Identifier: GPL-2.0 */
/*
* oplib.h: Describes the interface and available routines in the
* Linux Prom library.
*
* Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
*/
#ifndef __SPARC_OPLIB_H
#define __SPARC_OPLIB_H
#include <asm/openprom.h>
/* The master romvec pointer... */
extern struct linux_romvec *romvec;
/* Enumeration to describe the prom major version we have detected. */
enum prom_major_version {
PROM_V0, /* Original sun4c V0 prom */
PROM_V2, /* sun4c and early sun4m V2 prom */
PROM_V3, /* sun4m and later, up to sun4d/sun4e machines V3 */
PROM_P1275, /* IEEE compliant ISA based Sun PROM, only sun4u */
};
extern enum prom_major_version prom_vers;
/* Revision, and firmware revision. */
extern unsigned int prom_rev, prom_prev;
/* Root node of the prom device tree, this stays constant after
* initialization is complete.
*/
extern int prom_root_node;
/* Pointer to prom structure containing the device tree traversal
* and usage utility functions. Only prom-lib should use these,
* users use the interface defined by the library only!
*/
extern struct linux_nodeops *prom_nodeops;
/* The functions... */
/* You must call prom_init() before using any of the library services,
* preferably as early as possible. Pass it the romvec pointer.
*/
extern void prom_init(struct linux_romvec *rom_ptr);
/* Boot argument acquisition, returns the boot command line string. */
extern char *prom_getbootargs(void);
/* Device utilities. */
/* Map and unmap devices in IO space at virtual addresses. Note that the
* virtual address you pass is a request and the prom may put your mappings
* somewhere else, so check your return value as that is where your new
* mappings really are!
*
* Another note, these are only available on V2 or higher proms!
*/
extern char *prom_mapio(char *virt_hint, int io_space, unsigned int phys_addr, unsigned int num_bytes);
extern void prom_unmapio(char *virt_addr, unsigned int num_bytes);
/* Device operations. */
/* Open the device described by the passed string. Note, that the format
* of the string is different on V0 vs. V2->higher proms. The caller must
* know what he/she is doing! Returns the device descriptor, an int.
*/
extern int prom_devopen(char *device_string);
/* Close a previously opened device described by the passed integer
* descriptor.
*/
extern int prom_devclose(int device_handle);
/* Do a seek operation on the device described by the passed integer
* descriptor.
*/
extern void prom_seek(int device_handle, unsigned int seek_hival,
unsigned int seek_lowval);
/* Machine memory configuration routine. */
/* This function returns a V0 format memory descriptor table, it has three
* entries. One for the total amount of physical ram on the machine, one
* for the amount of physical ram available, and one describing the virtual
* areas which are allocated by the prom. So, in a sense the physical
* available is a calculation of the total physical minus the physical mapped
* by the prom with virtual mappings.
*
* These lists are returned pre-sorted, this should make your life easier
* since the prom itself is way too lazy to do such nice things.
*/
extern struct linux_mem_v0 *prom_meminfo(void);
/* Miscellaneous routines, don't really fit in any category per se. */
/* Reboot the machine with the command line passed. */
extern void prom_reboot(char *boot_command);
/* Evaluate the forth string passed. */
extern void prom_feval(char *forth_string);
/* Enter the prom, with possibility of continuation with the 'go'
* command in newer proms.
*/
extern void prom_cmdline(void);
/* Enter the prom, with no chance of continuation for the stand-alone
* which calls this.
*/
extern void prom_halt(void);
/* Set the PROM 'sync' callback function to the passed function pointer.
* When the user gives the 'sync' command at the prom prompt while the
* kernel is still active, the prom will call this routine.
*
* XXX The arguments are different on V0 vs. V2->higher proms, grrr! XXX
*/
typedef void (*sync_func_t)(void);
extern void prom_setsync(sync_func_t func_ptr);
/* 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.
*/
extern unsigned char prom_get_idprom(char *idp_buffer, int idpbuf_size);
/* Get the prom major version. */
extern int prom_version(void);
/* Get the prom plugin revision. */
extern int prom_getrev(void);
/* Get the prom firmware revision. */
extern int prom_getprev(void);
/* Character operations to/from the console.... */
/* Non-blocking get character from console. */
extern int prom_nbgetchar(void);
/* Non-blocking put character to console. */
extern int prom_nbputchar(char character);
/* Blocking get character from console. */
extern char prom_getchar(void);
/* Blocking put character to console. */
extern void prom_putchar(char character);
/* Prom's internal printf routine, don't use in kernel/boot code. */
void prom_printf(char *fmt, ...);
/* Query for input device type */
enum prom_input_device {
PROMDEV_IKBD, /* input from keyboard */
PROMDEV_ITTYA, /* input from ttya */
PROMDEV_ITTYB, /* input from ttyb */
PROMDEV_I_UNK,
};
extern enum prom_input_device prom_query_input_device(void);
/* Query for output device type */
enum prom_output_device {
PROMDEV_OSCREEN, /* to screen */
PROMDEV_OTTYA, /* to ttya */
PROMDEV_OTTYB, /* to ttyb */
PROMDEV_O_UNK,
};
extern enum prom_output_device prom_query_output_device(void);
/* Multiprocessor operations... */
/* Start the CPU with the given device tree node, context table, and context
* at the passed program counter.
*/
extern int prom_startcpu(int cpunode, struct linux_prom_registers *context_table,
int context, char *program_counter);
/* Stop the CPU with the passed device tree node. */
extern int prom_stopcpu(int cpunode);
/* Idle the CPU with the passed device tree node. */
extern int prom_idlecpu(int cpunode);
/* Re-Start the CPU with the passed device tree node. */
extern int prom_restartcpu(int cpunode);
/* PROM memory allocation facilities... */
/* Allocated at possibly the given virtual address a chunk of the
* indicated size.
*/
extern char *prom_alloc(char *virt_hint, unsigned int size);
/* Free a previously allocated chunk. */
extern void prom_free(char *virt_addr, unsigned int size);
/* Sun4/sun4c specific memory-management startup hook. */
/* Map the passed segment in the given context at the passed
* virtual address.
*/
extern void prom_putsegment(int context, unsigned long virt_addr,
int physical_segment);
/* PROM device tree traversal functions... */
/* Get the child node of the given node, or zero if no child exists. */
extern int prom_getchild(int parent_node);
/* Get the next sibling node of the given node, or zero if no further
* siblings exist.
*/
extern int prom_getsibling(int node);
/* Get the length, at the passed node, of the given property type.
* Returns -1 on error (ie. no such property at this node).
*/
extern int prom_getproplen(int thisnode, 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.
*/
extern int prom_getproperty(int thisnode, char *property,
char *prop_buffer, int propbuf_size);
/* Acquire an integer property. */
extern int prom_getint(int node, char *property);
/* Acquire an integer property, with a default value. */
extern int prom_getintdefault(int node, char *property, int defval);
/* Acquire a boolean property, 0=FALSE 1=TRUE. */
extern int prom_getbool(int node, char *prop);
/* Acquire a string property, null string on error. */
extern void prom_getstring(int node, char *prop, char *buf, int bufsize);
/* Does the passed node have the given "name"? YES=1 NO=0 */
extern int prom_nodematch(int thisnode, char *name);
/* Search all siblings starting at the passed node for "name" matching
* the given string. Returns the node on success, zero on failure.
*/
extern int prom_searchsiblings(int node_start, char *name);
/* Return the first property type, as a string, for the given node.
* Returns a null string on error.
*/
extern char *prom_firstprop(int node);
/* Returns the next property after the passed property for the given
* node. Returns null string on failure.
*/
extern char *prom_nextprop(int node, char *prev_property);
/* Returns 1 if the specified node has given property. */
extern int prom_node_has_property(int node, char *property);
/* Set the indicated property at the given node with the passed value.
* Returns the number of bytes of your value that the prom took.
*/
extern int prom_setprop(int node, char *prop_name, char *prop_value,
int value_size);
extern int prom_pathtoinode(char *path);
extern int prom_inst2pkg(int);
/* Dorking with Bus ranges... */
/* Adjust reg values with the passed ranges. */
extern void prom_adjust_regs(struct linux_prom_registers *regp, int nregs,
struct linux_prom_ranges *rangep, int nranges);
/* Adjust child ranges with the passed parent ranges. */
extern void prom_adjust_ranges(struct linux_prom_ranges *cranges, int ncranges,
struct linux_prom_ranges *pranges, int npranges);
/* Apply promlib probed OBIO ranges to registers. */
extern void prom_apply_obio_ranges(struct linux_prom_registers *obioregs, int nregs);
/* Apply ranges of any prom node (and optionally parent node as well) to registers. */
extern void prom_apply_generic_ranges(int node, int parent,
struct linux_prom_registers *sbusregs, int nregs);
#endif /* !(__SPARC_OPLIB_H) */
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