forked from mirrors/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>
81 lines
3.3 KiB
C
81 lines
3.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* include/asm/sunbpp.h
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*/
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#ifndef _ASM_SPARC_SUNBPP_H
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#define _ASM_SPARC_SUNBPP_H
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struct bpp_regs {
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/* DMA registers */
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__volatile__ __u32 p_csr; /* DMA Control/Status Register */
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__volatile__ __u32 p_addr; /* Address Register */
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__volatile__ __u32 p_bcnt; /* Byte Count Register */
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__volatile__ __u32 p_tst_csr; /* Test Control/Status (DMA2 only) */
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/* Parallel Port registers */
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__volatile__ __u16 p_hcr; /* Hardware Configuration Register */
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__volatile__ __u16 p_ocr; /* Operation Configuration Register */
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__volatile__ __u8 p_dr; /* Parallel Data Register */
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__volatile__ __u8 p_tcr; /* Transfer Control Register */
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__volatile__ __u8 p_or; /* Output Register */
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__volatile__ __u8 p_ir; /* Input Register */
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__volatile__ __u16 p_icr; /* Interrupt Control Register */
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};
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/* P_HCR. Time is in increments of SBus clock. */
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#define P_HCR_TEST 0x8000 /* Allows buried counters to be read */
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#define P_HCR_DSW 0x7f00 /* Data strobe width (in ticks) */
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#define P_HCR_DDS 0x007f /* Data setup before strobe (in ticks) */
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/* P_OCR. */
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#define P_OCR_MEM_CLR 0x8000
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#define P_OCR_DATA_SRC 0x4000 /* ) */
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#define P_OCR_DS_DSEL 0x2000 /* ) Bidirectional */
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#define P_OCR_BUSY_DSEL 0x1000 /* ) selects */
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#define P_OCR_ACK_DSEL 0x0800 /* ) */
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#define P_OCR_EN_DIAG 0x0400
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#define P_OCR_BUSY_OP 0x0200 /* Busy operation */
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#define P_OCR_ACK_OP 0x0100 /* Ack operation */
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#define P_OCR_SRST 0x0080 /* Reset state machines. Not selfcleaning. */
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#define P_OCR_IDLE 0x0008 /* PP data transfer state machine is idle */
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#define P_OCR_V_ILCK 0x0002 /* Versatec faded. Zebra only. */
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#define P_OCR_EN_VER 0x0001 /* Enable Versatec (0 - enable). Zebra only. */
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/* P_TCR */
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#define P_TCR_DIR 0x08
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#define P_TCR_BUSY 0x04
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#define P_TCR_ACK 0x02
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#define P_TCR_DS 0x01 /* Strobe */
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/* P_OR */
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#define P_OR_V3 0x20 /* ) */
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#define P_OR_V2 0x10 /* ) on Zebra only */
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#define P_OR_V1 0x08 /* ) */
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#define P_OR_INIT 0x04
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#define P_OR_AFXN 0x02 /* Auto Feed */
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#define P_OR_SLCT_IN 0x01
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/* P_IR */
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#define P_IR_PE 0x04
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#define P_IR_SLCT 0x02
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#define P_IR_ERR 0x01
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/* P_ICR */
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#define P_DS_IRQ 0x8000 /* RW1 */
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#define P_ACK_IRQ 0x4000 /* RW1 */
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#define P_BUSY_IRQ 0x2000 /* RW1 */
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#define P_PE_IRQ 0x1000 /* RW1 */
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#define P_SLCT_IRQ 0x0800 /* RW1 */
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#define P_ERR_IRQ 0x0400 /* RW1 */
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#define P_DS_IRQ_EN 0x0200 /* RW Always on rising edge */
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#define P_ACK_IRQ_EN 0x0100 /* RW Always on rising edge */
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#define P_BUSY_IRP 0x0080 /* RW 1= rising edge */
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#define P_BUSY_IRQ_EN 0x0040 /* RW */
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#define P_PE_IRP 0x0020 /* RW 1= rising edge */
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#define P_PE_IRQ_EN 0x0010 /* RW */
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#define P_SLCT_IRP 0x0008 /* RW 1= rising edge */
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#define P_SLCT_IRQ_EN 0x0004 /* RW */
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#define P_ERR_IRP 0x0002 /* RW1 1= rising edge */
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#define P_ERR_IRQ_EN 0x0001 /* RW */
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#endif /* !(_ASM_SPARC_SUNBPP_H) */
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