License cleanup: add SPDX GPL-2.0 license identifier to files with no license
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>
2017-11-01 22:07:57 +08:00
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/* SPDX-License-Identifier: GPL-2.0 */
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2016-01-09 07:22:09 +08:00
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#ifndef __ACP_HW_H
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#define __ACP_HW_H
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#include "include/acp_2_2_d.h"
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#include "include/acp_2_2_sh_mask.h"
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#define ACP_PAGE_SIZE_4K_ENABLE 0x02
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#define ACP_PLAYBACK_PTE_OFFSET 10
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#define ACP_CAPTURE_PTE_OFFSET 0
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2018-05-08 12:47:47 +08:00
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/* Playback and Capture Offset for Stoney */
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#define ACP_ST_PLAYBACK_PTE_OFFSET 0x04
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#define ACP_ST_CAPTURE_PTE_OFFSET 0x00
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2018-05-08 12:47:53 +08:00
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#define ACP_ST_BT_PLAYBACK_PTE_OFFSET 0x08
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#define ACP_ST_BT_CAPTURE_PTE_OFFSET 0x0c
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2018-05-08 12:47:47 +08:00
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2016-01-09 07:22:09 +08:00
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#define ACP_GARLIC_CNTL_DEFAULT 0x00000FB4
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#define ACP_ONION_CNTL_DEFAULT 0x00000FB4
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#define ACP_PHYSICAL_BASE 0x14000
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2018-05-08 12:47:48 +08:00
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/*
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* In case of I2S SP controller instance, Stoney uses SRAM bank 1 for
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* playback and SRAM Bank 2 for capture where as in case of BT I2S
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* Instance, Stoney uses SRAM Bank 3 for playback & SRAM Bank 4 will
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* be used for capture. Carrizo uses I2S SP controller instance. SRAM Banks
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* 1, 2, 3, 4 will be used for playback & SRAM Banks 5, 6, 7, 8 will be used
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* for capture scenario.
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*/
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#define ACP_SRAM_BANK_1_ADDRESS 0x4002000
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#define ACP_SRAM_BANK_2_ADDRESS 0x4004000
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#define ACP_SRAM_BANK_3_ADDRESS 0x4006000
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#define ACP_SRAM_BANK_4_ADDRESS 0x4008000
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#define ACP_SRAM_BANK_5_ADDRESS 0x400A000
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2016-01-09 07:22:09 +08:00
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#define ACP_DMA_RESET_TIME 10000
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#define ACP_CLOCK_EN_TIME_OUT_VALUE 0x000000FF
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#define ACP_SOFT_RESET_DONE_TIME_OUT_VALUE 0x000000FF
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#define ACP_DMA_COMPLETE_TIME_OUT_VALUE 0x000000FF
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#define ACP_SRAM_BASE_ADDRESS 0x4000000
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#define ACP_DAGB_GRP_SRAM_BASE_ADDRESS 0x4001000
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#define ACP_DAGB_GRP_SRBM_SRAM_BASE_OFFSET 0x1000
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#define ACP_INTERNAL_APERTURE_WINDOW_0_ADDRESS 0x00000000
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#define ACP_INTERNAL_APERTURE_WINDOW_4_ADDRESS 0x01800000
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#define TO_ACP_I2S_1 0x2
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#define TO_ACP_I2S_2 0x4
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2018-05-08 12:47:53 +08:00
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#define TO_BLUETOOTH 0x3
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2016-01-09 07:22:09 +08:00
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#define FROM_ACP_I2S_1 0xa
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#define FROM_ACP_I2S_2 0xb
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2018-05-08 12:47:53 +08:00
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#define FROM_BLUETOOTH 0xb
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#define I2S_SP_INSTANCE 0x01
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#define I2S_BT_INSTANCE 0x02
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2018-06-21 12:58:17 +08:00
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#define CAP_CHANNEL0 0x00
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#define CAP_CHANNEL1 0x01
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2016-01-09 07:22:09 +08:00
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#define ACP_TILE_ON_MASK 0x03
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#define ACP_TILE_OFF_MASK 0x02
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#define ACP_TILE_ON_RETAIN_REG_MASK 0x1f
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#define ACP_TILE_OFF_RETAIN_REG_MASK 0x20
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#define ACP_TILE_P1_MASK 0x3e
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#define ACP_TILE_P2_MASK 0x3d
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#define ACP_TILE_DSP0_MASK 0x3b
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#define ACP_TILE_DSP1_MASK 0x37
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#define ACP_TILE_DSP2_MASK 0x2f
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/* Playback DMA channels */
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#define SYSRAM_TO_ACP_CH_NUM 12
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#define ACP_TO_I2S_DMA_CH_NUM 13
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/* Capture DMA channels */
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#define ACP_TO_SYSRAM_CH_NUM 14
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#define I2S_TO_ACP_DMA_CH_NUM 15
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2018-05-08 12:47:53 +08:00
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/* Playback DMA Channels for I2S BT instance */
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#define SYSRAM_TO_ACP_BT_INSTANCE_CH_NUM 8
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#define ACP_TO_I2S_DMA_BT_INSTANCE_CH_NUM 9
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/* Capture DMA Channels for I2S BT Instance */
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#define ACP_TO_SYSRAM_BT_INSTANCE_CH_NUM 10
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#define I2S_TO_ACP_DMA_BT_INSTANCE_CH_NUM 11
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2016-01-09 07:22:09 +08:00
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#define NUM_DSCRS_PER_CHANNEL 2
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#define PLAYBACK_START_DMA_DESCR_CH12 0
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#define PLAYBACK_END_DMA_DESCR_CH12 1
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#define PLAYBACK_START_DMA_DESCR_CH13 2
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#define PLAYBACK_END_DMA_DESCR_CH13 3
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#define CAPTURE_START_DMA_DESCR_CH14 4
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#define CAPTURE_END_DMA_DESCR_CH14 5
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#define CAPTURE_START_DMA_DESCR_CH15 6
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#define CAPTURE_END_DMA_DESCR_CH15 7
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2018-05-08 12:47:53 +08:00
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/* I2S BT Instance DMA Descriptors */
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#define PLAYBACK_START_DMA_DESCR_CH8 8
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#define PLAYBACK_END_DMA_DESCR_CH8 9
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#define PLAYBACK_START_DMA_DESCR_CH9 10
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#define PLAYBACK_END_DMA_DESCR_CH9 11
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#define CAPTURE_START_DMA_DESCR_CH10 12
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#define CAPTURE_END_DMA_DESCR_CH10 13
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#define CAPTURE_START_DMA_DESCR_CH11 14
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#define CAPTURE_END_DMA_DESCR_CH11 15
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2017-10-19 00:13:58 +08:00
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#define mmACP_I2S_16BIT_RESOLUTION_EN 0x5209
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2018-03-09 23:43:02 +08:00
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#define ACP_I2S_MIC_16BIT_RESOLUTION_EN 0x01
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#define ACP_I2S_SP_16BIT_RESOLUTION_EN 0x02
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2018-05-08 12:47:53 +08:00
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#define ACP_I2S_BT_16BIT_RESOLUTION_EN 0x04
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#define ACP_BT_UART_PAD_SELECT_MASK 0x1
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2016-01-09 07:22:09 +08:00
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enum acp_dma_priority_level {
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/* 0x0 Specifies the DMA channel is given normal priority */
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ACP_DMA_PRIORITY_LEVEL_NORMAL = 0x0,
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/* 0x1 Specifies the DMA channel is given high priority */
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ACP_DMA_PRIORITY_LEVEL_HIGH = 0x1,
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ACP_DMA_PRIORITY_LEVEL_FORCESIZE = 0xFF
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};
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struct audio_substream_data {
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struct page *pg;
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unsigned int order;
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u16 num_of_pages;
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2018-05-08 12:47:53 +08:00
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u16 i2s_instance;
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2018-06-21 12:58:17 +08:00
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u16 capture_channel;
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2016-01-09 07:22:09 +08:00
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u16 direction;
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2018-05-08 12:47:44 +08:00
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u16 ch1;
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u16 ch2;
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u16 destination;
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u16 dma_dscr_idx_1;
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u16 dma_dscr_idx_2;
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2018-05-08 12:47:47 +08:00
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u32 pte_offset;
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2018-05-08 12:47:48 +08:00
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u32 sram_bank;
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2018-05-08 12:47:45 +08:00
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u32 byte_cnt_high_reg_offset;
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u32 byte_cnt_low_reg_offset;
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2016-01-09 07:22:09 +08:00
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uint64_t size;
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2018-05-08 12:47:46 +08:00
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u64 bytescount;
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2016-01-09 07:22:09 +08:00
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void __iomem *acp_mmio;
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};
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2017-10-10 04:36:08 +08:00
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struct audio_drv_data {
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2018-02-16 15:33:46 +08:00
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struct snd_pcm_substream *play_i2ssp_stream;
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struct snd_pcm_substream *capture_i2ssp_stream;
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2018-05-08 12:47:53 +08:00
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struct snd_pcm_substream *play_i2sbt_stream;
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struct snd_pcm_substream *capture_i2sbt_stream;
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2017-10-10 04:36:08 +08:00
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void __iomem *acp_mmio;
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u32 asic_type;
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};
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2018-05-08 12:47:53 +08:00
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/*
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* this structure used for platform data transfer between machine driver
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* and dma driver
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*/
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struct acp_platform_info {
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u16 i2s_instance;
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2018-06-21 12:58:17 +08:00
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u16 capture_channel;
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2018-05-08 12:47:53 +08:00
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};
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2017-11-04 04:35:43 +08:00
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union acp_dma_count {
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struct {
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u32 low;
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u32 high;
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} bcount;
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u64 bytescount;
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};
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2016-01-09 07:22:09 +08:00
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enum {
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ACP_TILE_P1 = 0,
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ACP_TILE_P2,
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ACP_TILE_DSP0,
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ACP_TILE_DSP1,
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ACP_TILE_DSP2,
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};
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enum {
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2018-04-17 12:59:52 +08:00
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ACP_DMA_ATTR_SHAREDMEM_TO_DAGB_ONION = 0x0,
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ACP_DMA_ATTR_SHARED_MEM_TO_DAGB_GARLIC = 0x1,
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ACP_DMA_ATTR_DAGB_ONION_TO_SHAREDMEM = 0x8,
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ACP_DMA_ATTR_DAGB_GARLIC_TO_SHAREDMEM = 0x9,
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ACP_DMA_ATTR_FORCE_SIZE = 0xF
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2016-01-09 07:22:09 +08:00
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};
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typedef struct acp_dma_dscr_transfer {
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/* Specifies the source memory location for the DMA data transfer. */
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u32 src;
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2018-04-17 12:59:52 +08:00
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/*
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* Specifies the destination memory location to where the data will
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2016-01-09 07:22:09 +08:00
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* be transferred.
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2018-04-17 12:59:52 +08:00
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*/
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2016-01-09 07:22:09 +08:00
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u32 dest;
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2018-04-17 12:59:52 +08:00
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/*
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* Specifies the number of bytes need to be transferred
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* from source to destination memory.Transfer direction & IOC enable
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*/
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2016-01-09 07:22:09 +08:00
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u32 xfer_val;
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/* Reserved for future use */
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u32 reserved;
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} acp_dma_dscr_transfer_t;
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#endif /*__ACP_HW_H */
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