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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>
152 lines
5.0 KiB
C
152 lines
5.0 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Contains register definitions common to PowerPC 8xx CPUs. Notice
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*/
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#ifndef _ASM_POWERPC_REG_8xx_H
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#define _ASM_POWERPC_REG_8xx_H
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#include <asm/mmu.h>
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/* Cache control on the MPC8xx is provided through some additional
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* special purpose registers.
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*/
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#define SPRN_IC_CST 560 /* Instruction cache control/status */
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#define SPRN_IC_ADR 561 /* Address needed for some commands */
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#define SPRN_IC_DAT 562 /* Read-only data register */
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#define SPRN_DC_CST 568 /* Data cache control/status */
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#define SPRN_DC_ADR 569 /* Address needed for some commands */
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#define SPRN_DC_DAT 570 /* Read-only data register */
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/* Misc Debug */
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#define SPRN_DPDR 630
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#define SPRN_MI_CAM 816
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#define SPRN_MI_RAM0 817
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#define SPRN_MI_RAM1 818
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#define SPRN_MD_CAM 824
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#define SPRN_MD_RAM0 825
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#define SPRN_MD_RAM1 826
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/* Special MSR manipulation registers */
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#define SPRN_EIE 80 /* External interrupt enable (EE=1, RI=1) */
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#define SPRN_EID 81 /* External interrupt disable (EE=0, RI=1) */
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#define SPRN_NRI 82 /* Non recoverable interrupt (EE=0, RI=0) */
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/* Debug registers */
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#define SPRN_CMPA 144
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#define SPRN_COUNTA 150
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#define SPRN_CMPE 152
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#define SPRN_CMPF 153
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#define SPRN_LCTRL1 156
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#define SPRN_LCTRL2 157
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#define SPRN_ICTRL 158
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#define SPRN_BAR 159
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/* Commands. Only the first few are available to the instruction cache.
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*/
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#define IDC_ENABLE 0x02000000 /* Cache enable */
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#define IDC_DISABLE 0x04000000 /* Cache disable */
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#define IDC_LDLCK 0x06000000 /* Load and lock */
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#define IDC_UNLINE 0x08000000 /* Unlock line */
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#define IDC_UNALL 0x0a000000 /* Unlock all */
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#define IDC_INVALL 0x0c000000 /* Invalidate all */
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#define DC_FLINE 0x0e000000 /* Flush data cache line */
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#define DC_SFWT 0x01000000 /* Set forced writethrough mode */
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#define DC_CFWT 0x03000000 /* Clear forced writethrough mode */
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#define DC_SLES 0x05000000 /* Set little endian swap mode */
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#define DC_CLES 0x07000000 /* Clear little endian swap mode */
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/* Status.
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*/
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#define IDC_ENABLED 0x80000000 /* Cache is enabled */
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#define IDC_CERR1 0x00200000 /* Cache error 1 */
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#define IDC_CERR2 0x00100000 /* Cache error 2 */
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#define IDC_CERR3 0x00080000 /* Cache error 3 */
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#define DC_DFWT 0x40000000 /* Data cache is forced write through */
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#define DC_LES 0x20000000 /* Caches are little endian mode */
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#ifdef CONFIG_8xx_CPU6
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#define do_mtspr_cpu6(rn, rn_addr, v) \
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do { \
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int _reg_cpu6 = rn_addr, _tmp_cpu6; \
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asm volatile("stw %0, %1;" \
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"lwz %0, %1;" \
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"mtspr " __stringify(rn) ",%2" : \
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: "r" (_reg_cpu6), "m"(_tmp_cpu6), \
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"r" ((unsigned long)(v)) \
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: "memory"); \
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} while (0)
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#define do_mtspr(rn, v) asm volatile("mtspr " __stringify(rn) ",%0" : \
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: "r" ((unsigned long)(v)) \
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: "memory")
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#define mtspr(rn, v) \
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do { \
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if (rn == SPRN_IMMR) \
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do_mtspr_cpu6(rn, 0x3d30, v); \
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else if (rn == SPRN_IC_CST) \
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do_mtspr_cpu6(rn, 0x2110, v); \
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else if (rn == SPRN_IC_ADR) \
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do_mtspr_cpu6(rn, 0x2310, v); \
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else if (rn == SPRN_IC_DAT) \
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do_mtspr_cpu6(rn, 0x2510, v); \
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else if (rn == SPRN_DC_CST) \
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do_mtspr_cpu6(rn, 0x3110, v); \
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else if (rn == SPRN_DC_ADR) \
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do_mtspr_cpu6(rn, 0x3310, v); \
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else if (rn == SPRN_DC_DAT) \
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do_mtspr_cpu6(rn, 0x3510, v); \
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else if (rn == SPRN_MI_CTR) \
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do_mtspr_cpu6(rn, 0x2180, v); \
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else if (rn == SPRN_MI_AP) \
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do_mtspr_cpu6(rn, 0x2580, v); \
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else if (rn == SPRN_MI_EPN) \
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do_mtspr_cpu6(rn, 0x2780, v); \
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else if (rn == SPRN_MI_TWC) \
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do_mtspr_cpu6(rn, 0x2b80, v); \
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else if (rn == SPRN_MI_RPN) \
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do_mtspr_cpu6(rn, 0x2d80, v); \
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else if (rn == SPRN_MI_CAM) \
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do_mtspr_cpu6(rn, 0x2190, v); \
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else if (rn == SPRN_MI_RAM0) \
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do_mtspr_cpu6(rn, 0x2390, v); \
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else if (rn == SPRN_MI_RAM1) \
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do_mtspr_cpu6(rn, 0x2590, v); \
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else if (rn == SPRN_MD_CTR) \
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do_mtspr_cpu6(rn, 0x3180, v); \
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else if (rn == SPRN_M_CASID) \
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do_mtspr_cpu6(rn, 0x3380, v); \
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else if (rn == SPRN_MD_AP) \
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do_mtspr_cpu6(rn, 0x3580, v); \
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else if (rn == SPRN_MD_EPN) \
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do_mtspr_cpu6(rn, 0x3780, v); \
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else if (rn == SPRN_M_TWB) \
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do_mtspr_cpu6(rn, 0x3980, v); \
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else if (rn == SPRN_MD_TWC) \
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do_mtspr_cpu6(rn, 0x3b80, v); \
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else if (rn == SPRN_MD_RPN) \
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do_mtspr_cpu6(rn, 0x3d80, v); \
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else if (rn == SPRN_M_TW) \
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do_mtspr_cpu6(rn, 0x3f80, v); \
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else if (rn == SPRN_MD_CAM) \
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do_mtspr_cpu6(rn, 0x3190, v); \
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else if (rn == SPRN_MD_RAM0) \
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do_mtspr_cpu6(rn, 0x3390, v); \
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else if (rn == SPRN_MD_RAM1) \
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do_mtspr_cpu6(rn, 0x3590, v); \
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else if (rn == SPRN_DEC) \
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do_mtspr_cpu6(rn, 0x2c00, v); \
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else if (rn == SPRN_TBWL) \
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do_mtspr_cpu6(rn, 0x3880, v); \
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else if (rn == SPRN_TBWU) \
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do_mtspr_cpu6(rn, 0x3a80, v); \
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else if (rn == SPRN_DPDR) \
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do_mtspr_cpu6(rn, 0x2d30, v); \
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else \
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do_mtspr(rn, v); \
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} while (0)
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#endif
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#endif /* _ASM_POWERPC_REG_8xx_H */
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