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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2005-04-17 06:20:36 +08:00
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#ifndef _PSMOUSE_H
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#define _PSMOUSE_H
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2017-02-08 15:58:02 +08:00
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#define PSMOUSE_OOB_NONE 0x00
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#define PSMOUSE_OOB_EXTRA_BTNS 0x01
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2005-04-17 06:20:36 +08:00
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#define PSMOUSE_CMD_SETSCALE11 0x00e6
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#define PSMOUSE_CMD_SETSCALE21 0x00e7
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#define PSMOUSE_CMD_SETRES 0x10e8
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#define PSMOUSE_CMD_GETINFO 0x03e9
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#define PSMOUSE_CMD_SETSTREAM 0x00ea
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#define PSMOUSE_CMD_SETPOLL 0x00f0
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2006-01-14 13:27:37 +08:00
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#define PSMOUSE_CMD_POLL 0x00eb /* caller sets number of bytes to receive */
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2011-11-08 11:53:36 +08:00
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#define PSMOUSE_CMD_RESET_WRAP 0x00ec
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2005-04-17 06:20:36 +08:00
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#define PSMOUSE_CMD_GETID 0x02f2
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#define PSMOUSE_CMD_SETRATE 0x10f3
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#define PSMOUSE_CMD_ENABLE 0x00f4
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#define PSMOUSE_CMD_DISABLE 0x00f5
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#define PSMOUSE_CMD_RESET_DIS 0x00f6
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#define PSMOUSE_CMD_RESET_BAT 0x02ff
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#define PSMOUSE_RET_BAT 0xaa
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#define PSMOUSE_RET_ID 0x00
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#define PSMOUSE_RET_ACK 0xfa
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#define PSMOUSE_RET_NAK 0xfe
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enum psmouse_state {
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PSMOUSE_IGNORE,
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PSMOUSE_INITIALIZING,
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2006-01-14 13:27:37 +08:00
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PSMOUSE_RESYNCING,
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2005-04-17 06:20:36 +08:00
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PSMOUSE_CMD_MODE,
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PSMOUSE_ACTIVATED,
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};
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/* psmouse protocol handler return codes */
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typedef enum {
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PSMOUSE_BAD_DATA,
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PSMOUSE_GOOD_DATA,
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PSMOUSE_FULL_PACKET
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} psmouse_ret_t;
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2015-03-08 05:32:10 +08:00
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enum psmouse_scale {
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PSMOUSE_SCALE11,
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PSMOUSE_SCALE21
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};
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2017-03-04 07:29:00 +08:00
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enum psmouse_type {
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PSMOUSE_NONE,
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PSMOUSE_PS2,
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PSMOUSE_PS2PP,
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PSMOUSE_THINKPS,
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PSMOUSE_GENPS,
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PSMOUSE_IMPS,
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PSMOUSE_IMEX,
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PSMOUSE_SYNAPTICS,
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PSMOUSE_ALPS,
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PSMOUSE_LIFEBOOK,
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PSMOUSE_TRACKPOINT,
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PSMOUSE_TOUCHKIT_PS2,
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PSMOUSE_CORTRON,
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PSMOUSE_HGPK,
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PSMOUSE_ELANTECH,
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PSMOUSE_FSP,
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PSMOUSE_SYNAPTICS_RELATIVE,
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PSMOUSE_CYPRESS,
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PSMOUSE_FOCALTECH,
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PSMOUSE_VMMOUSE,
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PSMOUSE_BYD,
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2017-03-03 06:13:53 +08:00
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PSMOUSE_SYNAPTICS_SMBUS,
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2018-05-23 08:28:23 +08:00
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PSMOUSE_ELANTECH_SMBUS,
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2017-03-04 07:29:00 +08:00
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PSMOUSE_AUTO /* This one should always be last */
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};
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struct psmouse;
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struct psmouse_protocol {
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enum psmouse_type type;
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bool maxproto;
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bool ignore_parity; /* Protocol should ignore parity errors from KBC */
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bool try_passthru; /* Try protocol also on passthrough ports */
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2017-03-03 07:50:56 +08:00
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bool smbus_companion; /* "Protocol" is a stub, device is on SMBus */
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2017-03-04 07:29:00 +08:00
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const char *name;
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const char *alias;
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int (*detect)(struct psmouse *, bool);
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int (*init)(struct psmouse *);
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};
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2005-04-17 06:20:36 +08:00
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struct psmouse {
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void *private;
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2005-09-15 15:01:44 +08:00
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struct input_dev *dev;
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2005-04-17 06:20:36 +08:00
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struct ps2dev ps2dev;
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2008-09-17 00:30:33 +08:00
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struct delayed_work resync_work;
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2017-03-04 07:29:00 +08:00
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const char *vendor;
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const char *name;
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const struct psmouse_protocol *protocol;
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2005-04-17 06:20:36 +08:00
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unsigned char packet[8];
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2006-01-14 13:27:37 +08:00
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unsigned char badbyte;
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2005-04-17 06:20:36 +08:00
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unsigned char pktcnt;
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unsigned char pktsize;
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2017-02-08 15:58:02 +08:00
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unsigned char oob_data_type;
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unsigned char extra_buttons;
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2009-09-10 10:13:20 +08:00
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bool acks_disable_command;
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2005-04-17 06:20:36 +08:00
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unsigned int model;
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unsigned long last;
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2009-09-10 10:13:20 +08:00
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unsigned long out_of_sync_cnt;
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2006-01-14 13:27:37 +08:00
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unsigned long num_resyncs;
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2005-04-17 06:20:36 +08:00
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enum psmouse_state state;
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char devname[64];
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char phys[32];
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unsigned int rate;
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unsigned int resolution;
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unsigned int resetafter;
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2006-01-14 13:27:37 +08:00
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unsigned int resync_time;
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2009-09-10 10:13:20 +08:00
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bool smartscroll; /* Logitech only */
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2005-04-17 06:20:36 +08:00
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IRQ: Maintain regs pointer globally rather than passing to IRQ handlers
Maintain a per-CPU global "struct pt_regs *" variable which can be used instead
of passing regs around manually through all ~1800 interrupt handlers in the
Linux kernel.
The regs pointer is used in few places, but it potentially costs both stack
space and code to pass it around. On the FRV arch, removing the regs parameter
from all the genirq function results in a 20% speed up of the IRQ exit path
(ie: from leaving timer_interrupt() to leaving do_IRQ()).
Where appropriate, an arch may override the generic storage facility and do
something different with the variable. On FRV, for instance, the address is
maintained in GR28 at all times inside the kernel as part of general exception
handling.
Having looked over the code, it appears that the parameter may be handed down
through up to twenty or so layers of functions. Consider a USB character
device attached to a USB hub, attached to a USB controller that posts its
interrupts through a cascaded auxiliary interrupt controller. A character
device driver may want to pass regs to the sysrq handler through the input
layer which adds another few layers of parameter passing.
I've build this code with allyesconfig for x86_64 and i386. I've runtested the
main part of the code on FRV and i386, though I can't test most of the drivers.
I've also done partial conversion for powerpc and MIPS - these at least compile
with minimal configurations.
This will affect all archs. Mostly the changes should be relatively easy.
Take do_IRQ(), store the regs pointer at the beginning, saving the old one:
struct pt_regs *old_regs = set_irq_regs(regs);
And put the old one back at the end:
set_irq_regs(old_regs);
Don't pass regs through to generic_handle_irq() or __do_IRQ().
In timer_interrupt(), this sort of change will be necessary:
- update_process_times(user_mode(regs));
- profile_tick(CPU_PROFILING, regs);
+ update_process_times(user_mode(get_irq_regs()));
+ profile_tick(CPU_PROFILING);
I'd like to move update_process_times()'s use of get_irq_regs() into itself,
except that i386, alone of the archs, uses something other than user_mode().
Some notes on the interrupt handling in the drivers:
(*) input_dev() is now gone entirely. The regs pointer is no longer stored in
the input_dev struct.
(*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking. It does
something different depending on whether it's been supplied with a regs
pointer or not.
(*) Various IRQ handler function pointers have been moved to type
irq_handler_t.
Signed-Off-By: David Howells <dhowells@redhat.com>
(cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)
2006-10-05 21:55:46 +08:00
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psmouse_ret_t (*protocol_handler)(struct psmouse *psmouse);
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2005-04-17 06:20:36 +08:00
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void (*set_rate)(struct psmouse *psmouse, unsigned int rate);
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void (*set_resolution)(struct psmouse *psmouse, unsigned int resolution);
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2015-03-08 05:32:10 +08:00
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void (*set_scale)(struct psmouse *psmouse, enum psmouse_scale scale);
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2005-04-17 06:20:36 +08:00
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int (*reconnect)(struct psmouse *psmouse);
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2017-03-06 15:19:22 +08:00
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int (*fast_reconnect)(struct psmouse *psmouse);
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2005-04-17 06:20:36 +08:00
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void (*disconnect)(struct psmouse *psmouse);
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2007-02-18 14:40:24 +08:00
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void (*cleanup)(struct psmouse *psmouse);
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2006-01-14 13:27:37 +08:00
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int (*poll)(struct psmouse *psmouse);
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2005-04-17 06:20:36 +08:00
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void (*pt_activate)(struct psmouse *psmouse);
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void (*pt_deactivate)(struct psmouse *psmouse);
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};
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2008-09-17 00:30:33 +08:00
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void psmouse_queue_work(struct psmouse *psmouse, struct delayed_work *work,
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unsigned long delay);
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2005-04-17 06:20:36 +08:00
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int psmouse_reset(struct psmouse *psmouse);
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2008-09-17 00:30:33 +08:00
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void psmouse_set_state(struct psmouse *psmouse, enum psmouse_state new_state);
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2005-04-17 06:20:36 +08:00
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void psmouse_set_resolution(struct psmouse *psmouse, unsigned int resolution);
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Input: synaptics - add support for Relative mode
Currently, the synaptics driver puts the device into Absolute mode.
As explained in the synaptics documentation section 3.2, in this mode,
the device sends a continuous stream of packets at the maximum rate
to the host when the user's fingers are near or on the pad or
pressing buttons, and continues streaming for 1 second afterwards.
These packets are even sent when there is no new information to report,
even when they are duplicates of the previous packet.
For embedded systems this is a bit much - it results in a huge
and uninterrupted stream of interrupts at high rate.
This patch adds support for Relative mode, which can be selected as
a new psmouse protocol. In this mode, the device does not send duplicate
packets and acts like a standard PS/2 mouse. However, synaptics-specific
functionality is still available, such as the ability to set the packet
rate, and rather than disabling gestures and taps at the hardware level
unconditionally, a 'synaptics_disable_gesture' sysfs attribute has
been added to allow control of this functionality.
This solves a long standing OLPC issue: synaptics hardware enables
tap to click by default (even in the default relative mode), but we
have found this to be inappropriate for young children and first
time computer users. Enabling the synaptics driver disables tap-to-click,
but we have previously been unable to use this because it also enables
Absolute mode, which is too "spammy" for our desires and actually
overloads our EC with its continuous stream of packets. Now we can enable
the synaptics driver, disabling tap to click while retaining the less
noisy Relative mode.
Signed-off-by: Daniel Drake <dsd@laptop.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-11-08 16:00:35 +08:00
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psmouse_ret_t psmouse_process_byte(struct psmouse *psmouse);
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2012-02-24 16:51:37 +08:00
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int psmouse_activate(struct psmouse *psmouse);
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int psmouse_deactivate(struct psmouse *psmouse);
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2014-09-12 01:14:09 +08:00
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bool psmouse_matches_pnp_id(struct psmouse *psmouse, const char * const ids[]);
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2005-04-17 06:20:36 +08:00
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2017-02-08 09:07:44 +08:00
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void psmouse_report_standard_buttons(struct input_dev *, u8 buttons);
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void psmouse_report_standard_motion(struct input_dev *, u8 *packet);
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void psmouse_report_standard_packet(struct input_dev *, u8 *packet);
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2005-09-04 14:40:20 +08:00
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struct psmouse_attribute {
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struct device_attribute dattr;
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void *data;
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ssize_t (*show)(struct psmouse *psmouse, void *data, char *buf);
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ssize_t (*set)(struct psmouse *psmouse, void *data,
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const char *buf, size_t count);
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2009-09-10 10:13:20 +08:00
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bool protect;
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2005-09-04 14:40:20 +08:00
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};
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#define to_psmouse_attr(a) container_of((a), struct psmouse_attribute, dattr)
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ssize_t psmouse_attr_show_helper(struct device *dev, struct device_attribute *attr,
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char *buf);
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ssize_t psmouse_attr_set_helper(struct device *dev, struct device_attribute *attr,
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const char *buf, size_t count);
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2009-08-19 02:45:02 +08:00
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#define __PSMOUSE_DEFINE_ATTR_VAR(_name, _mode, _data, _show, _set, _protect) \
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2005-09-04 14:40:20 +08:00
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static struct psmouse_attribute psmouse_attr_##_name = { \
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.dattr = { \
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.attr = { \
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.name = __stringify(_name), \
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.mode = _mode, \
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|
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}, \
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.show = psmouse_attr_show_helper, \
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|
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.store = psmouse_attr_set_helper, \
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|
|
|
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}, \
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.data = _data, \
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|
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.show = _show, \
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|
|
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.set = _set, \
|
2008-09-17 00:30:34 +08:00
|
|
|
.protect = _protect, \
|
2005-09-04 14:40:20 +08:00
|
|
|
}
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2009-08-19 02:45:02 +08:00
|
|
|
#define __PSMOUSE_DEFINE_ATTR(_name, _mode, _data, _show, _set, _protect) \
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|
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static ssize_t _show(struct psmouse *, void *, char *); \
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|
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static ssize_t _set(struct psmouse *, void *, const char *, size_t); \
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|
|
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__PSMOUSE_DEFINE_ATTR_VAR(_name, _mode, _data, _show, _set, _protect)
|
|
|
|
|
|
|
|
|
|
#define PSMOUSE_DEFINE_ATTR(_name, _mode, _data, _show, _set) \
|
2009-09-10 10:13:20 +08:00
|
|
|
__PSMOUSE_DEFINE_ATTR(_name, _mode, _data, _show, _set, true)
|
2009-08-19 02:45:02 +08:00
|
|
|
|
|
|
|
|
#define PSMOUSE_DEFINE_RO_ATTR(_name, _mode, _data, _show) \
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|
|
|
|
static ssize_t _show(struct psmouse *, void *, char *); \
|
2009-09-10 10:13:20 +08:00
|
|
|
__PSMOUSE_DEFINE_ATTR_VAR(_name, _mode, _data, _show, NULL, true)
|
2009-08-19 02:45:02 +08:00
|
|
|
|
|
|
|
|
#define PSMOUSE_DEFINE_WO_ATTR(_name, _mode, _data, _set) \
|
|
|
|
|
static ssize_t _set(struct psmouse *, void *, const char *, size_t); \
|
2009-09-10 10:13:20 +08:00
|
|
|
__PSMOUSE_DEFINE_ATTR_VAR(_name, _mode, _data, NULL, _set, true)
|
2008-09-17 00:30:34 +08:00
|
|
|
|
2011-10-11 09:27:03 +08:00
|
|
|
#ifndef psmouse_fmt
|
|
|
|
|
#define psmouse_fmt(fmt) KBUILD_BASENAME ": " fmt
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
#define psmouse_dbg(psmouse, format, ...) \
|
|
|
|
|
dev_dbg(&(psmouse)->ps2dev.serio->dev, \
|
|
|
|
|
psmouse_fmt(format), ##__VA_ARGS__)
|
|
|
|
|
#define psmouse_info(psmouse, format, ...) \
|
|
|
|
|
dev_info(&(psmouse)->ps2dev.serio->dev, \
|
|
|
|
|
psmouse_fmt(format), ##__VA_ARGS__)
|
|
|
|
|
#define psmouse_warn(psmouse, format, ...) \
|
|
|
|
|
dev_warn(&(psmouse)->ps2dev.serio->dev, \
|
|
|
|
|
psmouse_fmt(format), ##__VA_ARGS__)
|
|
|
|
|
#define psmouse_err(psmouse, format, ...) \
|
|
|
|
|
dev_err(&(psmouse)->ps2dev.serio->dev, \
|
|
|
|
|
psmouse_fmt(format), ##__VA_ARGS__)
|
|
|
|
|
#define psmouse_notice(psmouse, format, ...) \
|
|
|
|
|
dev_notice(&(psmouse)->ps2dev.serio->dev, \
|
|
|
|
|
psmouse_fmt(format), ##__VA_ARGS__)
|
|
|
|
|
#define psmouse_printk(level, psmouse, format, ...) \
|
|
|
|
|
dev_printk(level, \
|
|
|
|
|
&(psmouse)->ps2dev.serio->dev, \
|
|
|
|
|
psmouse_fmt(format), ##__VA_ARGS__)
|
|
|
|
|
|
2017-03-03 02:48:23 +08:00
|
|
|
#ifdef CONFIG_MOUSE_PS2_SMBUS
|
|
|
|
|
|
|
|
|
|
int psmouse_smbus_module_init(void);
|
|
|
|
|
void psmouse_smbus_module_exit(void);
|
|
|
|
|
|
|
|
|
|
struct i2c_board_info;
|
|
|
|
|
|
|
|
|
|
int psmouse_smbus_init(struct psmouse *psmouse,
|
|
|
|
|
const struct i2c_board_info *board,
|
|
|
|
|
const void *pdata, size_t pdata_size,
|
2018-05-23 08:30:31 +08:00
|
|
|
bool need_deactivate,
|
2017-03-03 02:48:23 +08:00
|
|
|
bool leave_breadcrumbs);
|
|
|
|
|
void psmouse_smbus_cleanup(struct psmouse *psmouse);
|
|
|
|
|
|
|
|
|
|
#else /* !CONFIG_MOUSE_PS2_SMBUS */
|
|
|
|
|
|
|
|
|
|
static inline int psmouse_smbus_module_init(void)
|
|
|
|
|
{
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static inline void psmouse_smbus_module_exit(void)
|
|
|
|
|
{
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static inline void psmouse_smbus_cleanup(struct psmouse *psmouse)
|
|
|
|
|
{
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#endif /* CONFIG_MOUSE_PS2_SMBUS */
|
2011-10-11 09:27:03 +08:00
|
|
|
|
2005-04-17 06:20:36 +08:00
|
|
|
#endif /* _PSMOUSE_H */
|