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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>
275 lines
8.2 KiB
C
275 lines
8.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __RK3288_CRYPTO_H__
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#define __RK3288_CRYPTO_H__
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#include <crypto/aes.h>
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#include <crypto/des.h>
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#include <crypto/algapi.h>
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#include <linux/interrupt.h>
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#include <linux/delay.h>
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#include <crypto/internal/hash.h>
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#include <crypto/md5.h>
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#include <crypto/sha.h>
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#define _SBF(v, f) ((v) << (f))
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/* Crypto control registers*/
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#define RK_CRYPTO_INTSTS 0x0000
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#define RK_CRYPTO_PKA_DONE_INT BIT(5)
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#define RK_CRYPTO_HASH_DONE_INT BIT(4)
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#define RK_CRYPTO_HRDMA_ERR_INT BIT(3)
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#define RK_CRYPTO_HRDMA_DONE_INT BIT(2)
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#define RK_CRYPTO_BCDMA_ERR_INT BIT(1)
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#define RK_CRYPTO_BCDMA_DONE_INT BIT(0)
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#define RK_CRYPTO_INTENA 0x0004
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#define RK_CRYPTO_PKA_DONE_ENA BIT(5)
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#define RK_CRYPTO_HASH_DONE_ENA BIT(4)
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#define RK_CRYPTO_HRDMA_ERR_ENA BIT(3)
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#define RK_CRYPTO_HRDMA_DONE_ENA BIT(2)
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#define RK_CRYPTO_BCDMA_ERR_ENA BIT(1)
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#define RK_CRYPTO_BCDMA_DONE_ENA BIT(0)
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#define RK_CRYPTO_CTRL 0x0008
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#define RK_CRYPTO_WRITE_MASK _SBF(0xFFFF, 16)
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#define RK_CRYPTO_TRNG_FLUSH BIT(9)
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#define RK_CRYPTO_TRNG_START BIT(8)
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#define RK_CRYPTO_PKA_FLUSH BIT(7)
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#define RK_CRYPTO_HASH_FLUSH BIT(6)
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#define RK_CRYPTO_BLOCK_FLUSH BIT(5)
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#define RK_CRYPTO_PKA_START BIT(4)
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#define RK_CRYPTO_HASH_START BIT(3)
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#define RK_CRYPTO_BLOCK_START BIT(2)
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#define RK_CRYPTO_TDES_START BIT(1)
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#define RK_CRYPTO_AES_START BIT(0)
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#define RK_CRYPTO_CONF 0x000c
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/* HASH Receive DMA Address Mode: fix | increment */
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#define RK_CRYPTO_HR_ADDR_MODE BIT(8)
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/* Block Transmit DMA Address Mode: fix | increment */
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#define RK_CRYPTO_BT_ADDR_MODE BIT(7)
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/* Block Receive DMA Address Mode: fix | increment */
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#define RK_CRYPTO_BR_ADDR_MODE BIT(6)
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#define RK_CRYPTO_BYTESWAP_HRFIFO BIT(5)
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#define RK_CRYPTO_BYTESWAP_BTFIFO BIT(4)
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#define RK_CRYPTO_BYTESWAP_BRFIFO BIT(3)
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/* AES = 0 OR DES = 1 */
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#define RK_CRYPTO_DESSEL BIT(2)
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#define RK_CYYPTO_HASHINSEL_INDEPENDENT_SOURCE _SBF(0x00, 0)
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#define RK_CYYPTO_HASHINSEL_BLOCK_CIPHER_INPUT _SBF(0x01, 0)
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#define RK_CYYPTO_HASHINSEL_BLOCK_CIPHER_OUTPUT _SBF(0x02, 0)
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/* Block Receiving DMA Start Address Register */
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#define RK_CRYPTO_BRDMAS 0x0010
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/* Block Transmitting DMA Start Address Register */
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#define RK_CRYPTO_BTDMAS 0x0014
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/* Block Receiving DMA Length Register */
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#define RK_CRYPTO_BRDMAL 0x0018
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/* Hash Receiving DMA Start Address Register */
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#define RK_CRYPTO_HRDMAS 0x001c
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/* Hash Receiving DMA Length Register */
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#define RK_CRYPTO_HRDMAL 0x0020
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/* AES registers */
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#define RK_CRYPTO_AES_CTRL 0x0080
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#define RK_CRYPTO_AES_BYTESWAP_CNT BIT(11)
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#define RK_CRYPTO_AES_BYTESWAP_KEY BIT(10)
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#define RK_CRYPTO_AES_BYTESWAP_IV BIT(9)
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#define RK_CRYPTO_AES_BYTESWAP_DO BIT(8)
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#define RK_CRYPTO_AES_BYTESWAP_DI BIT(7)
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#define RK_CRYPTO_AES_KEY_CHANGE BIT(6)
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#define RK_CRYPTO_AES_ECB_MODE _SBF(0x00, 4)
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#define RK_CRYPTO_AES_CBC_MODE _SBF(0x01, 4)
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#define RK_CRYPTO_AES_CTR_MODE _SBF(0x02, 4)
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#define RK_CRYPTO_AES_128BIT_key _SBF(0x00, 2)
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#define RK_CRYPTO_AES_192BIT_key _SBF(0x01, 2)
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#define RK_CRYPTO_AES_256BIT_key _SBF(0x02, 2)
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/* Slave = 0 / fifo = 1 */
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#define RK_CRYPTO_AES_FIFO_MODE BIT(1)
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/* Encryption = 0 , Decryption = 1 */
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#define RK_CRYPTO_AES_DEC BIT(0)
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#define RK_CRYPTO_AES_STS 0x0084
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#define RK_CRYPTO_AES_DONE BIT(0)
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/* AES Input Data 0-3 Register */
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#define RK_CRYPTO_AES_DIN_0 0x0088
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#define RK_CRYPTO_AES_DIN_1 0x008c
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#define RK_CRYPTO_AES_DIN_2 0x0090
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#define RK_CRYPTO_AES_DIN_3 0x0094
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/* AES output Data 0-3 Register */
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#define RK_CRYPTO_AES_DOUT_0 0x0098
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#define RK_CRYPTO_AES_DOUT_1 0x009c
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#define RK_CRYPTO_AES_DOUT_2 0x00a0
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#define RK_CRYPTO_AES_DOUT_3 0x00a4
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/* AES IV Data 0-3 Register */
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#define RK_CRYPTO_AES_IV_0 0x00a8
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#define RK_CRYPTO_AES_IV_1 0x00ac
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#define RK_CRYPTO_AES_IV_2 0x00b0
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#define RK_CRYPTO_AES_IV_3 0x00b4
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/* AES Key Data 0-3 Register */
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#define RK_CRYPTO_AES_KEY_0 0x00b8
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#define RK_CRYPTO_AES_KEY_1 0x00bc
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#define RK_CRYPTO_AES_KEY_2 0x00c0
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#define RK_CRYPTO_AES_KEY_3 0x00c4
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#define RK_CRYPTO_AES_KEY_4 0x00c8
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#define RK_CRYPTO_AES_KEY_5 0x00cc
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#define RK_CRYPTO_AES_KEY_6 0x00d0
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#define RK_CRYPTO_AES_KEY_7 0x00d4
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/* des/tdes */
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#define RK_CRYPTO_TDES_CTRL 0x0100
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#define RK_CRYPTO_TDES_BYTESWAP_KEY BIT(8)
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#define RK_CRYPTO_TDES_BYTESWAP_IV BIT(7)
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#define RK_CRYPTO_TDES_BYTESWAP_DO BIT(6)
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#define RK_CRYPTO_TDES_BYTESWAP_DI BIT(5)
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/* 0: ECB, 1: CBC */
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#define RK_CRYPTO_TDES_CHAINMODE_CBC BIT(4)
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/* TDES Key Mode, 0 : EDE, 1 : EEE */
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#define RK_CRYPTO_TDES_EEE BIT(3)
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/* 0: DES, 1:TDES */
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#define RK_CRYPTO_TDES_SELECT BIT(2)
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/* 0: Slave, 1:Fifo */
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#define RK_CRYPTO_TDES_FIFO_MODE BIT(1)
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/* Encryption = 0 , Decryption = 1 */
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#define RK_CRYPTO_TDES_DEC BIT(0)
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#define RK_CRYPTO_TDES_STS 0x0104
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#define RK_CRYPTO_TDES_DONE BIT(0)
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#define RK_CRYPTO_TDES_DIN_0 0x0108
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#define RK_CRYPTO_TDES_DIN_1 0x010c
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#define RK_CRYPTO_TDES_DOUT_0 0x0110
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#define RK_CRYPTO_TDES_DOUT_1 0x0114
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#define RK_CRYPTO_TDES_IV_0 0x0118
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#define RK_CRYPTO_TDES_IV_1 0x011c
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#define RK_CRYPTO_TDES_KEY1_0 0x0120
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#define RK_CRYPTO_TDES_KEY1_1 0x0124
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#define RK_CRYPTO_TDES_KEY2_0 0x0128
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#define RK_CRYPTO_TDES_KEY2_1 0x012c
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#define RK_CRYPTO_TDES_KEY3_0 0x0130
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#define RK_CRYPTO_TDES_KEY3_1 0x0134
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/* HASH */
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#define RK_CRYPTO_HASH_CTRL 0x0180
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#define RK_CRYPTO_HASH_SWAP_DO BIT(3)
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#define RK_CRYPTO_HASH_SWAP_DI BIT(2)
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#define RK_CRYPTO_HASH_SHA1 _SBF(0x00, 0)
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#define RK_CRYPTO_HASH_MD5 _SBF(0x01, 0)
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#define RK_CRYPTO_HASH_SHA256 _SBF(0x02, 0)
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#define RK_CRYPTO_HASH_PRNG _SBF(0x03, 0)
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#define RK_CRYPTO_HASH_STS 0x0184
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#define RK_CRYPTO_HASH_DONE BIT(0)
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#define RK_CRYPTO_HASH_MSG_LEN 0x0188
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#define RK_CRYPTO_HASH_DOUT_0 0x018c
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#define RK_CRYPTO_HASH_DOUT_1 0x0190
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#define RK_CRYPTO_HASH_DOUT_2 0x0194
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#define RK_CRYPTO_HASH_DOUT_3 0x0198
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#define RK_CRYPTO_HASH_DOUT_4 0x019c
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#define RK_CRYPTO_HASH_DOUT_5 0x01a0
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#define RK_CRYPTO_HASH_DOUT_6 0x01a4
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#define RK_CRYPTO_HASH_DOUT_7 0x01a8
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#define CRYPTO_READ(dev, offset) \
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readl_relaxed(((dev)->reg + (offset)))
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#define CRYPTO_WRITE(dev, offset, val) \
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writel_relaxed((val), ((dev)->reg + (offset)))
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struct rk_crypto_info {
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struct device *dev;
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struct clk *aclk;
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struct clk *hclk;
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struct clk *sclk;
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struct clk *dmaclk;
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struct reset_control *rst;
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void __iomem *reg;
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int irq;
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struct crypto_queue queue;
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struct tasklet_struct queue_task;
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struct tasklet_struct done_task;
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struct crypto_async_request *async_req;
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int err;
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/* device lock */
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spinlock_t lock;
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/* the public variable */
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struct scatterlist *sg_src;
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struct scatterlist *sg_dst;
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struct scatterlist sg_tmp;
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struct scatterlist *first;
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unsigned int left_bytes;
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void *addr_vir;
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int aligned;
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int align_size;
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size_t nents;
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unsigned int total;
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unsigned int count;
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dma_addr_t addr_in;
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dma_addr_t addr_out;
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bool busy;
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int (*start)(struct rk_crypto_info *dev);
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int (*update)(struct rk_crypto_info *dev);
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void (*complete)(struct crypto_async_request *base, int err);
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int (*enable_clk)(struct rk_crypto_info *dev);
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void (*disable_clk)(struct rk_crypto_info *dev);
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int (*load_data)(struct rk_crypto_info *dev,
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struct scatterlist *sg_src,
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struct scatterlist *sg_dst);
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void (*unload_data)(struct rk_crypto_info *dev);
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int (*enqueue)(struct rk_crypto_info *dev,
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struct crypto_async_request *async_req);
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};
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/* the private variable of hash */
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struct rk_ahash_ctx {
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struct rk_crypto_info *dev;
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/* for fallback */
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struct crypto_ahash *fallback_tfm;
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};
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/* the privete variable of hash for fallback */
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struct rk_ahash_rctx {
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struct ahash_request fallback_req;
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u32 mode;
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};
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/* the private variable of cipher */
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struct rk_cipher_ctx {
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struct rk_crypto_info *dev;
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unsigned int keylen;
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u32 mode;
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};
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enum alg_type {
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ALG_TYPE_HASH,
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ALG_TYPE_CIPHER,
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};
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struct rk_crypto_tmp {
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struct rk_crypto_info *dev;
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union {
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struct crypto_alg crypto;
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struct ahash_alg hash;
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} alg;
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enum alg_type type;
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};
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extern struct rk_crypto_tmp rk_ecb_aes_alg;
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extern struct rk_crypto_tmp rk_cbc_aes_alg;
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extern struct rk_crypto_tmp rk_ecb_des_alg;
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extern struct rk_crypto_tmp rk_cbc_des_alg;
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extern struct rk_crypto_tmp rk_ecb_des3_ede_alg;
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extern struct rk_crypto_tmp rk_cbc_des3_ede_alg;
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extern struct rk_crypto_tmp rk_ahash_sha1;
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extern struct rk_crypto_tmp rk_ahash_sha256;
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extern struct rk_crypto_tmp rk_ahash_md5;
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#endif
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