mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-16 02:36:51 +07:00
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>
82 lines
2.5 KiB
C
82 lines
2.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#ifndef __BCM47XXSFLASH_H
|
|
#define __BCM47XXSFLASH_H
|
|
|
|
#include <linux/mtd/mtd.h>
|
|
|
|
#define BCM47XXSFLASH_WINDOW_SZ SZ_16M
|
|
|
|
/* Used for ST flashes only. */
|
|
#define OPCODE_ST_WREN 0x0006 /* Write Enable */
|
|
#define OPCODE_ST_WRDIS 0x0004 /* Write Disable */
|
|
#define OPCODE_ST_RDSR 0x0105 /* Read Status Register */
|
|
#define OPCODE_ST_WRSR 0x0101 /* Write Status Register */
|
|
#define OPCODE_ST_READ 0x0303 /* Read Data Bytes */
|
|
#define OPCODE_ST_PP 0x0302 /* Page Program */
|
|
#define OPCODE_ST_SE 0x02d8 /* Sector Erase */
|
|
#define OPCODE_ST_BE 0x00c7 /* Bulk Erase */
|
|
#define OPCODE_ST_DP 0x00b9 /* Deep Power-down */
|
|
#define OPCODE_ST_RES 0x03ab /* Read Electronic Signature */
|
|
#define OPCODE_ST_CSA 0x1000 /* Keep chip select asserted */
|
|
#define OPCODE_ST_SSE 0x0220 /* Sub-sector Erase */
|
|
#define OPCODE_ST_READ4B 0x6313 /* Read Data Bytes in 4Byte addressing mode */
|
|
|
|
/* Used for Atmel flashes only. */
|
|
#define OPCODE_AT_READ 0x07e8
|
|
#define OPCODE_AT_PAGE_READ 0x07d2
|
|
#define OPCODE_AT_STATUS 0x01d7
|
|
#define OPCODE_AT_BUF1_WRITE 0x0384
|
|
#define OPCODE_AT_BUF2_WRITE 0x0387
|
|
#define OPCODE_AT_BUF1_ERASE_PROGRAM 0x0283
|
|
#define OPCODE_AT_BUF2_ERASE_PROGRAM 0x0286
|
|
#define OPCODE_AT_BUF1_PROGRAM 0x0288
|
|
#define OPCODE_AT_BUF2_PROGRAM 0x0289
|
|
#define OPCODE_AT_PAGE_ERASE 0x0281
|
|
#define OPCODE_AT_BLOCK_ERASE 0x0250
|
|
#define OPCODE_AT_BUF1_WRITE_ERASE_PROGRAM 0x0382
|
|
#define OPCODE_AT_BUF2_WRITE_ERASE_PROGRAM 0x0385
|
|
#define OPCODE_AT_BUF1_LOAD 0x0253
|
|
#define OPCODE_AT_BUF2_LOAD 0x0255
|
|
#define OPCODE_AT_BUF1_COMPARE 0x0260
|
|
#define OPCODE_AT_BUF2_COMPARE 0x0261
|
|
#define OPCODE_AT_BUF1_REPROGRAM 0x0258
|
|
#define OPCODE_AT_BUF2_REPROGRAM 0x0259
|
|
|
|
/* Status register bits for ST flashes */
|
|
#define SR_ST_WIP 0x01 /* Write In Progress */
|
|
#define SR_ST_WEL 0x02 /* Write Enable Latch */
|
|
#define SR_ST_BP_MASK 0x1c /* Block Protect */
|
|
#define SR_ST_BP_SHIFT 2
|
|
#define SR_ST_SRWD 0x80 /* Status Register Write Disable */
|
|
|
|
/* Status register bits for Atmel flashes */
|
|
#define SR_AT_READY 0x80
|
|
#define SR_AT_MISMATCH 0x40
|
|
#define SR_AT_ID_MASK 0x38
|
|
#define SR_AT_ID_SHIFT 3
|
|
|
|
struct bcma_drv_cc;
|
|
|
|
enum bcm47xxsflash_type {
|
|
BCM47XXSFLASH_TYPE_ATMEL,
|
|
BCM47XXSFLASH_TYPE_ST,
|
|
};
|
|
|
|
struct bcm47xxsflash {
|
|
struct bcma_drv_cc *bcma_cc;
|
|
int (*cc_read)(struct bcm47xxsflash *b47s, u16 offset);
|
|
void (*cc_write)(struct bcm47xxsflash *b47s, u16 offset, u32 value);
|
|
|
|
enum bcm47xxsflash_type type;
|
|
|
|
void __iomem *window;
|
|
|
|
u32 blocksize;
|
|
u16 numblocks;
|
|
u32 size;
|
|
|
|
struct mtd_info mtd;
|
|
};
|
|
|
|
#endif /* BCM47XXSFLASH */
|