forked from Minki/linux
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>
101 lines
3.1 KiB
C
101 lines
3.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/* irq.h: IRQ registers on the 64-bit Sparc.
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*
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* Copyright (C) 1996 David S. Miller (davem@davemloft.net)
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* Copyright (C) 1998 Jakub Jelinek (jj@ultra.linux.cz)
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*/
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#ifndef _SPARC64_IRQ_H
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#define _SPARC64_IRQ_H
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#include <linux/linkage.h>
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#include <linux/kernel.h>
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#include <linux/errno.h>
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#include <linux/interrupt.h>
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#include <asm/pil.h>
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#include <asm/ptrace.h>
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/* IMAP/ICLR register defines */
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#define IMAP_VALID 0x80000000UL /* IRQ Enabled */
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#define IMAP_TID_UPA 0x7c000000UL /* UPA TargetID */
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#define IMAP_TID_JBUS 0x7c000000UL /* JBUS TargetID */
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#define IMAP_TID_SHIFT 26
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#define IMAP_AID_SAFARI 0x7c000000UL /* Safari AgentID */
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#define IMAP_AID_SHIFT 26
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#define IMAP_NID_SAFARI 0x03e00000UL /* Safari NodeID */
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#define IMAP_NID_SHIFT 21
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#define IMAP_IGN 0x000007c0UL /* IRQ Group Number */
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#define IMAP_INO 0x0000003fUL /* IRQ Number */
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#define IMAP_INR 0x000007ffUL /* Full interrupt number*/
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#define ICLR_IDLE 0x00000000UL /* Idle state */
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#define ICLR_TRANSMIT 0x00000001UL /* Transmit state */
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#define ICLR_PENDING 0x00000003UL /* Pending state */
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/* The largest number of unique interrupt sources we support.
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* If this needs to ever be larger than 255, you need to change
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* the type of ino_bucket->irq as appropriate.
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*
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* ino_bucket->irq allocation is made during {sun4v_,}build_irq().
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*/
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#define NR_IRQS (2048)
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void irq_install_pre_handler(int irq,
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void (*func)(unsigned int, void *, void *),
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void *arg1, void *arg2);
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#define irq_canonicalize(irq) (irq)
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unsigned int build_irq(int inofixup, unsigned long iclr, unsigned long imap);
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unsigned int sun4v_build_irq(u32 devhandle, unsigned int devino);
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unsigned int sun4v_build_virq(u32 devhandle, unsigned int devino);
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unsigned int sun4v_build_msi(u32 devhandle, unsigned int *irq_p,
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unsigned int msi_devino_start,
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unsigned int msi_devino_end);
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void sun4v_destroy_msi(unsigned int irq);
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unsigned int sun4u_build_msi(u32 portid, unsigned int *irq_p,
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unsigned int msi_devino_start,
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unsigned int msi_devino_end,
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unsigned long imap_base,
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unsigned long iclr_base);
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void sun4u_destroy_msi(unsigned int irq);
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unsigned int irq_alloc(unsigned int dev_handle, unsigned int dev_ino);
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void irq_free(unsigned int irq);
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void __init init_IRQ(void);
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void fixup_irqs(void);
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static inline void set_softint(unsigned long bits)
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{
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__asm__ __volatile__("wr %0, 0x0, %%set_softint"
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: /* No outputs */
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: "r" (bits));
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}
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static inline void clear_softint(unsigned long bits)
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{
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__asm__ __volatile__("wr %0, 0x0, %%clear_softint"
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: /* No outputs */
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: "r" (bits));
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}
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static inline unsigned long get_softint(void)
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{
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unsigned long retval;
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__asm__ __volatile__("rd %%softint, %0"
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: "=r" (retval));
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return retval;
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}
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void arch_trigger_cpumask_backtrace(const struct cpumask *mask,
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bool exclude_self);
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#define arch_trigger_cpumask_backtrace arch_trigger_cpumask_backtrace
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extern void *hardirq_stack[NR_CPUS];
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extern void *softirq_stack[NR_CPUS];
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#define __ARCH_HAS_DO_SOFTIRQ
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#define NO_IRQ 0xffffffff
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#endif
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