mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-21 13:58:41 +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>
320 lines
9.5 KiB
C
320 lines
9.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _ASM_POWERPC_MMU_BOOK3E_H_
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#define _ASM_POWERPC_MMU_BOOK3E_H_
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/*
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* Freescale Book-E/Book-3e (ISA 2.06+) MMU support
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*/
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/* Book-3e defined page sizes */
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#define BOOK3E_PAGESZ_1K 0
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#define BOOK3E_PAGESZ_2K 1
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#define BOOK3E_PAGESZ_4K 2
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#define BOOK3E_PAGESZ_8K 3
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#define BOOK3E_PAGESZ_16K 4
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#define BOOK3E_PAGESZ_32K 5
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#define BOOK3E_PAGESZ_64K 6
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#define BOOK3E_PAGESZ_128K 7
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#define BOOK3E_PAGESZ_256K 8
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#define BOOK3E_PAGESZ_512K 9
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#define BOOK3E_PAGESZ_1M 10
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#define BOOK3E_PAGESZ_2M 11
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#define BOOK3E_PAGESZ_4M 12
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#define BOOK3E_PAGESZ_8M 13
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#define BOOK3E_PAGESZ_16M 14
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#define BOOK3E_PAGESZ_32M 15
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#define BOOK3E_PAGESZ_64M 16
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#define BOOK3E_PAGESZ_128M 17
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#define BOOK3E_PAGESZ_256M 18
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#define BOOK3E_PAGESZ_512M 19
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#define BOOK3E_PAGESZ_1GB 20
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#define BOOK3E_PAGESZ_2GB 21
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#define BOOK3E_PAGESZ_4GB 22
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#define BOOK3E_PAGESZ_8GB 23
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#define BOOK3E_PAGESZ_16GB 24
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#define BOOK3E_PAGESZ_32GB 25
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#define BOOK3E_PAGESZ_64GB 26
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#define BOOK3E_PAGESZ_128GB 27
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#define BOOK3E_PAGESZ_256GB 28
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#define BOOK3E_PAGESZ_512GB 29
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#define BOOK3E_PAGESZ_1TB 30
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#define BOOK3E_PAGESZ_2TB 31
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/* MAS registers bit definitions */
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#define MAS0_TLBSEL_MASK 0x30000000
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#define MAS0_TLBSEL_SHIFT 28
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#define MAS0_TLBSEL(x) (((x) << MAS0_TLBSEL_SHIFT) & MAS0_TLBSEL_MASK)
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#define MAS0_GET_TLBSEL(mas0) (((mas0) & MAS0_TLBSEL_MASK) >> \
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MAS0_TLBSEL_SHIFT)
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#define MAS0_ESEL_MASK 0x0FFF0000
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#define MAS0_ESEL_SHIFT 16
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#define MAS0_ESEL(x) (((x) << MAS0_ESEL_SHIFT) & MAS0_ESEL_MASK)
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#define MAS0_NV(x) ((x) & 0x00000FFF)
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#define MAS0_HES 0x00004000
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#define MAS0_WQ_ALLWAYS 0x00000000
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#define MAS0_WQ_COND 0x00001000
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#define MAS0_WQ_CLR_RSRV 0x00002000
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#define MAS1_VALID 0x80000000
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#define MAS1_IPROT 0x40000000
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#define MAS1_TID(x) (((x) << 16) & 0x3FFF0000)
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#define MAS1_IND 0x00002000
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#define MAS1_TS 0x00001000
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#define MAS1_TSIZE_MASK 0x00000f80
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#define MAS1_TSIZE_SHIFT 7
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#define MAS1_TSIZE(x) (((x) << MAS1_TSIZE_SHIFT) & MAS1_TSIZE_MASK)
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#define MAS1_GET_TSIZE(mas1) (((mas1) & MAS1_TSIZE_MASK) >> MAS1_TSIZE_SHIFT)
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#define MAS2_EPN (~0xFFFUL)
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#define MAS2_X0 0x00000040
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#define MAS2_X1 0x00000020
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#define MAS2_W 0x00000010
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#define MAS2_I 0x00000008
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#define MAS2_M 0x00000004
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#define MAS2_G 0x00000002
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#define MAS2_E 0x00000001
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#define MAS2_WIMGE_MASK 0x0000001f
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#define MAS2_EPN_MASK(size) (~0 << (size + 10))
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#define MAS2_VAL(addr, size, flags) ((addr) & MAS2_EPN_MASK(size) | (flags))
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#define MAS3_RPN 0xFFFFF000
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#define MAS3_U0 0x00000200
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#define MAS3_U1 0x00000100
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#define MAS3_U2 0x00000080
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#define MAS3_U3 0x00000040
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#define MAS3_UX 0x00000020
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#define MAS3_SX 0x00000010
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#define MAS3_UW 0x00000008
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#define MAS3_SW 0x00000004
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#define MAS3_UR 0x00000002
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#define MAS3_SR 0x00000001
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#define MAS3_BAP_MASK 0x0000003f
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#define MAS3_SPSIZE 0x0000003e
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#define MAS3_SPSIZE_SHIFT 1
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#define MAS4_TLBSEL_MASK MAS0_TLBSEL_MASK
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#define MAS4_TLBSELD(x) MAS0_TLBSEL(x)
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#define MAS4_INDD 0x00008000 /* Default IND */
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#define MAS4_TSIZED(x) MAS1_TSIZE(x)
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#define MAS4_X0D 0x00000040
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#define MAS4_X1D 0x00000020
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#define MAS4_WD 0x00000010
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#define MAS4_ID 0x00000008
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#define MAS4_MD 0x00000004
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#define MAS4_GD 0x00000002
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#define MAS4_ED 0x00000001
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#define MAS4_WIMGED_MASK 0x0000001f /* Default WIMGE */
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#define MAS4_WIMGED_SHIFT 0
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#define MAS4_VLED MAS4_X1D /* Default VLE */
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#define MAS4_ACMD 0x000000c0 /* Default ACM */
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#define MAS4_ACMD_SHIFT 6
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#define MAS4_TSIZED_MASK 0x00000f80 /* Default TSIZE */
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#define MAS4_TSIZED_SHIFT 7
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#define MAS5_SGS 0x80000000
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#define MAS6_SPID0 0x3FFF0000
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#define MAS6_SPID1 0x00007FFE
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#define MAS6_ISIZE(x) MAS1_TSIZE(x)
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#define MAS6_SAS 0x00000001
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#define MAS6_SPID MAS6_SPID0
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#define MAS6_SIND 0x00000002 /* Indirect page */
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#define MAS6_SIND_SHIFT 1
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#define MAS6_SPID_MASK 0x3fff0000
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#define MAS6_SPID_SHIFT 16
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#define MAS6_ISIZE_MASK 0x00000f80
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#define MAS6_ISIZE_SHIFT 7
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#define MAS7_RPN 0xFFFFFFFF
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#define MAS8_TGS 0x80000000 /* Guest space */
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#define MAS8_VF 0x40000000 /* Virtualization Fault */
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#define MAS8_TLPID 0x000000ff
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/* Bit definitions for MMUCFG */
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#define MMUCFG_MAVN 0x00000003 /* MMU Architecture Version Number */
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#define MMUCFG_MAVN_V1 0x00000000 /* v1.0 */
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#define MMUCFG_MAVN_V2 0x00000001 /* v2.0 */
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#define MMUCFG_NTLBS 0x0000000c /* Number of TLBs */
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#define MMUCFG_PIDSIZE 0x000007c0 /* PID Reg Size */
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#define MMUCFG_TWC 0x00008000 /* TLB Write Conditional (v2.0) */
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#define MMUCFG_LRAT 0x00010000 /* LRAT Supported (v2.0) */
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#define MMUCFG_RASIZE 0x00fe0000 /* Real Addr Size */
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#define MMUCFG_LPIDSIZE 0x0f000000 /* LPID Reg Size */
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/* Bit definitions for MMUCSR0 */
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#define MMUCSR0_TLB1FI 0x00000002 /* TLB1 Flash invalidate */
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#define MMUCSR0_TLB0FI 0x00000004 /* TLB0 Flash invalidate */
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#define MMUCSR0_TLB2FI 0x00000040 /* TLB2 Flash invalidate */
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#define MMUCSR0_TLB3FI 0x00000020 /* TLB3 Flash invalidate */
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#define MMUCSR0_TLBFI (MMUCSR0_TLB0FI | MMUCSR0_TLB1FI | \
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MMUCSR0_TLB2FI | MMUCSR0_TLB3FI)
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#define MMUCSR0_TLB0PS 0x00000780 /* TLB0 Page Size */
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#define MMUCSR0_TLB1PS 0x00007800 /* TLB1 Page Size */
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#define MMUCSR0_TLB2PS 0x00078000 /* TLB2 Page Size */
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#define MMUCSR0_TLB3PS 0x00780000 /* TLB3 Page Size */
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/* MMUCFG bits */
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#define MMUCFG_MAVN_NASK 0x00000003
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#define MMUCFG_MAVN_V1_0 0x00000000
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#define MMUCFG_MAVN_V2_0 0x00000001
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#define MMUCFG_NTLB_MASK 0x0000000c
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#define MMUCFG_NTLB_SHIFT 2
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#define MMUCFG_PIDSIZE_MASK 0x000007c0
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#define MMUCFG_PIDSIZE_SHIFT 6
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#define MMUCFG_TWC 0x00008000
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#define MMUCFG_LRAT 0x00010000
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#define MMUCFG_RASIZE_MASK 0x00fe0000
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#define MMUCFG_RASIZE_SHIFT 17
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#define MMUCFG_LPIDSIZE_MASK 0x0f000000
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#define MMUCFG_LPIDSIZE_SHIFT 24
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/* TLBnCFG encoding */
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#define TLBnCFG_N_ENTRY 0x00000fff /* number of entries */
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#define TLBnCFG_HES 0x00002000 /* HW select supported */
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#define TLBnCFG_IPROT 0x00008000 /* IPROT supported */
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#define TLBnCFG_GTWE 0x00010000 /* Guest can write */
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#define TLBnCFG_IND 0x00020000 /* IND entries supported */
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#define TLBnCFG_PT 0x00040000 /* Can load from page table */
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#define TLBnCFG_MINSIZE 0x00f00000 /* Minimum Page Size (v1.0) */
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#define TLBnCFG_MINSIZE_SHIFT 20
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#define TLBnCFG_MAXSIZE 0x000f0000 /* Maximum Page Size (v1.0) */
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#define TLBnCFG_MAXSIZE_SHIFT 16
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#define TLBnCFG_ASSOC 0xff000000 /* Associativity */
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#define TLBnCFG_ASSOC_SHIFT 24
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/* TLBnPS encoding */
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#define TLBnPS_4K 0x00000004
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#define TLBnPS_8K 0x00000008
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#define TLBnPS_16K 0x00000010
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#define TLBnPS_32K 0x00000020
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#define TLBnPS_64K 0x00000040
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#define TLBnPS_128K 0x00000080
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#define TLBnPS_256K 0x00000100
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#define TLBnPS_512K 0x00000200
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#define TLBnPS_1M 0x00000400
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#define TLBnPS_2M 0x00000800
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#define TLBnPS_4M 0x00001000
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#define TLBnPS_8M 0x00002000
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#define TLBnPS_16M 0x00004000
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#define TLBnPS_32M 0x00008000
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#define TLBnPS_64M 0x00010000
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#define TLBnPS_128M 0x00020000
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#define TLBnPS_256M 0x00040000
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#define TLBnPS_512M 0x00080000
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#define TLBnPS_1G 0x00100000
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#define TLBnPS_2G 0x00200000
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#define TLBnPS_4G 0x00400000
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#define TLBnPS_8G 0x00800000
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#define TLBnPS_16G 0x01000000
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#define TLBnPS_32G 0x02000000
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#define TLBnPS_64G 0x04000000
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#define TLBnPS_128G 0x08000000
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#define TLBnPS_256G 0x10000000
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/* tlbilx action encoding */
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#define TLBILX_T_ALL 0
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#define TLBILX_T_TID 1
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#define TLBILX_T_FULLMATCH 3
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#define TLBILX_T_CLASS0 4
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#define TLBILX_T_CLASS1 5
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#define TLBILX_T_CLASS2 6
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#define TLBILX_T_CLASS3 7
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#ifndef __ASSEMBLY__
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#include <asm/bug.h>
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extern unsigned int tlbcam_index;
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typedef struct {
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unsigned int id;
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unsigned int active;
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unsigned long vdso_base;
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#ifdef CONFIG_PPC_64K_PAGES
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/* for 4K PTE fragment support */
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void *pte_frag;
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#endif
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} mm_context_t;
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/* Page size definitions, common between 32 and 64-bit
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*
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* shift : is the "PAGE_SHIFT" value for that page size
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* penc : is the pte encoding mask
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*
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*/
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struct mmu_psize_def
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{
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unsigned int shift; /* number of bits */
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unsigned int enc; /* PTE encoding */
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unsigned int ind; /* Corresponding indirect page size shift */
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unsigned int flags;
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#define MMU_PAGE_SIZE_DIRECT 0x1 /* Supported as a direct size */
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#define MMU_PAGE_SIZE_INDIRECT 0x2 /* Supported as an indirect size */
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};
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extern struct mmu_psize_def mmu_psize_defs[MMU_PAGE_COUNT];
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static inline int shift_to_mmu_psize(unsigned int shift)
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{
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int psize;
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for (psize = 0; psize < MMU_PAGE_COUNT; ++psize)
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if (mmu_psize_defs[psize].shift == shift)
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return psize;
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return -1;
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}
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static inline unsigned int mmu_psize_to_shift(unsigned int mmu_psize)
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{
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if (mmu_psize_defs[mmu_psize].shift)
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return mmu_psize_defs[mmu_psize].shift;
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BUG();
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}
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/* The page sizes use the same names as 64-bit hash but are
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* constants
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*/
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#if defined(CONFIG_PPC_4K_PAGES)
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#define mmu_virtual_psize MMU_PAGE_4K
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#elif defined(CONFIG_PPC_64K_PAGES)
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#define mmu_virtual_psize MMU_PAGE_64K
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#else
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#error Unsupported page size
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#endif
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extern int mmu_linear_psize;
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extern int mmu_vmemmap_psize;
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struct tlb_core_data {
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/*
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* Per-core spinlock for e6500 TLB handlers (no tlbsrx.)
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* Must be the first struct element.
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*/
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u8 lock;
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/* For software way selection, as on Freescale TLB1 */
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u8 esel_next, esel_max, esel_first;
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};
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#ifdef CONFIG_PPC64
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extern unsigned long linear_map_top;
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extern int book3e_htw_mode;
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#define PPC_HTW_NONE 0
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#define PPC_HTW_IBM 1
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#define PPC_HTW_E6500 2
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/*
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* 64-bit booke platforms don't load the tlb in the tlb miss handler code.
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* HUGETLB_NEED_PRELOAD handles this - it causes huge_ptep_set_access_flags to
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* return 1, indicating that the tlb requires preloading.
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*/
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#define HUGETLB_NEED_PRELOAD
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#define mmu_cleanup_all NULL
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#endif
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#endif /* !__ASSEMBLY__ */
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#endif /* _ASM_POWERPC_MMU_BOOK3E_H_ */
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