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Revision tags: v6.15, v6.15-rc7, v6.15-rc6, v6.15-rc5, v6.15-rc4, v6.15-rc3, v6.15-rc2, v6.15-rc1, v6.14, v6.14-rc7, v6.14-rc6, v6.14-rc5, v6.14-rc4, v6.14-rc3, v6.14-rc2, v6.14-rc1, v6.13, v6.13-rc7, v6.13-rc6, v6.13-rc5, v6.13-rc4, v6.13-rc3, v6.13-rc2, v6.13-rc1, v6.12, v6.12-rc7, v6.12-rc6, v6.12-rc5, v6.12-rc4, v6.12-rc3, v6.12-rc2, v6.12-rc1, v6.11, v6.11-rc7, v6.11-rc6, v6.11-rc5, v6.11-rc4, v6.11-rc3, v6.11-rc2, v6.11-rc1, v6.10, v6.10-rc7, v6.10-rc6, v6.10-rc5, v6.10-rc4, v6.10-rc3, v6.10-rc2, v6.10-rc1, v6.9, v6.9-rc7, v6.9-rc6, v6.9-rc5, v6.9-rc4, v6.9-rc3, v6.9-rc2, v6.9-rc1, v6.8, v6.8-rc7, v6.8-rc6, v6.8-rc5, v6.8-rc4, v6.8-rc3, v6.8-rc2, v6.8-rc1, v6.7, v6.7-rc8, v6.7-rc7, v6.7-rc6, v6.7-rc5, v6.7-rc4, v6.7-rc3, v6.7-rc2, v6.7-rc1, v6.6, v6.6-rc7, v6.6-rc6, v6.6-rc5, v6.6-rc4, v6.6-rc3, v6.6-rc2, v6.6-rc1, v6.5, v6.5-rc7, v6.5-rc6, v6.5-rc5, v6.5-rc4, v6.5-rc3, v6.5-rc2, v6.5-rc1, v6.4, v6.4-rc7 |
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| #
01eb454e |
| 13-Jun-2023 |
Thomas Gleixner <[email protected]> |
sh/cpu: Switch to arch_cpu_finalize_init()
check_bugs() is about to be phased out. Switch over to the new arch_cpu_finalize_init() implementation.
No functional change.
Signed-off-by: Thomas Gleix
sh/cpu: Switch to arch_cpu_finalize_init()
check_bugs() is about to be phased out. Switch over to the new arch_cpu_finalize_init() implementation.
No functional change.
Signed-off-by: Thomas Gleixner <[email protected]> Link: https://lore.kernel.org/r/[email protected]
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Revision tags: v6.4-rc6, v6.4-rc5, v6.4-rc4, v6.4-rc3, v6.4-rc2, v6.4-rc1, v6.3, v6.3-rc7, v6.3-rc6, v6.3-rc5, v6.3-rc4, v6.3-rc3, v6.3-rc2, v6.3-rc1, v6.2, v6.2-rc8, v6.2-rc7, v6.2-rc6, v6.2-rc5, v6.2-rc4, v6.2-rc3, v6.2-rc2, v6.2-rc1, v6.1, v6.1-rc8, v6.1-rc7, v6.1-rc6, v6.1-rc5, v6.1-rc4, v6.1-rc3, v6.1-rc2, v6.1-rc1, v6.0, v6.0-rc7, v6.0-rc6, v6.0-rc5, v6.0-rc4, v6.0-rc3, v6.0-rc2, v6.0-rc1, v5.19, v5.19-rc8, v5.19-rc7, v5.19-rc6, v5.19-rc5, v5.19-rc4, v5.19-rc3, v5.19-rc2, v5.19-rc1, v5.18, v5.18-rc7, v5.18-rc6, v5.18-rc5, v5.18-rc4, v5.18-rc3, v5.18-rc2, v5.18-rc1, v5.17, v5.17-rc8, v5.17-rc7, v5.17-rc6, v5.17-rc5, v5.17-rc4 |
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75d4d295 |
| 11-Feb-2022 |
Arnd Bergmann <[email protected]> |
sh: remove CONFIG_SET_FS support
sh uses set_fs/get_fs only in one file, to handle address errors in both user and kernel memory.
It already has an abstraction to differentiate between I/O and memo
sh: remove CONFIG_SET_FS support
sh uses set_fs/get_fs only in one file, to handle address errors in both user and kernel memory.
It already has an abstraction to differentiate between I/O and memory, so adding a third class for kernel memory fits into the same scheme and lets us kill off CONFIG_SET_FS.
Reviewed-by: Christoph Hellwig <[email protected]> Signed-off-by: Arnd Bergmann <[email protected]>
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Revision tags: v5.17-rc3, v5.17-rc2, v5.17-rc1, v5.16, v5.16-rc8, v5.16-rc7, v5.16-rc6, v5.16-rc5, v5.16-rc4, v5.16-rc3, v5.16-rc2, v5.16-rc1, v5.15, v5.15-rc7, v5.15-rc6, v5.15-rc5, v5.15-rc4, v5.15-rc3, v5.15-rc2, v5.15-rc1, v5.14, v5.14-rc7, v5.14-rc6, v5.14-rc5, v5.14-rc4, v5.14-rc3, v5.14-rc2, v5.14-rc1, v5.13, v5.13-rc7, v5.13-rc6, v5.13-rc5, v5.13-rc4, v5.13-rc3, v5.13-rc2, v5.13-rc1, v5.12, v5.12-rc8, v5.12-rc7, v5.12-rc6, v5.12-rc5, v5.12-rc4, v5.12-rc3, v5.12-rc2, v5.12-rc1, v5.12-rc1-dontuse, v5.11, v5.11-rc7, v5.11-rc6, v5.11-rc5, v5.11-rc4, v5.11-rc3, v5.11-rc2, v5.11-rc1, v5.10, v5.10-rc7, v5.10-rc6, v5.10-rc5, v5.10-rc4, v5.10-rc3, v5.10-rc2, v5.10-rc1, v5.9, v5.9-rc8, v5.9-rc7, v5.9-rc6, v5.9-rc5, v5.9-rc4, v5.9-rc3, v5.9-rc2, v5.9-rc1, v5.8, v5.8-rc7, v5.8-rc6, v5.8-rc5, v5.8-rc4, v5.8-rc3, v5.8-rc2, v5.8-rc1, v5.7, v5.7-rc7, v5.7-rc6, v5.7-rc5, v5.7-rc4, v5.7-rc3 |
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37744fee |
| 20-Apr-2020 |
Arnd Bergmann <[email protected]> |
sh: remove sh5 support
sh5 never became a product and has probably never really worked.
Remove it by recursively deleting all associated Kconfig options and all corresponding files.
Reviewed-by: G
sh: remove sh5 support
sh5 never became a product and has probably never really worked.
Remove it by recursively deleting all associated Kconfig options and all corresponding files.
Reviewed-by: Geert Uytterhoeven <[email protected]> Signed-off-by: Arnd Bergmann <[email protected]> Signed-off-by: Rich Felker <[email protected]>
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Revision tags: v5.7-rc2, v5.7-rc1, v5.6, v5.6-rc7, v5.6-rc6, v5.6-rc5, v5.6-rc4, v5.6-rc3, v5.6-rc2, v5.6-rc1, v5.5, v5.5-rc7, v5.5-rc6, v5.5-rc5, v5.5-rc4, v5.5-rc3, v5.5-rc2, v5.5-rc1, v5.4, v5.4-rc8, v5.4-rc7, v5.4-rc6, v5.4-rc5, v5.4-rc4, v5.4-rc3, v5.4-rc2, v5.4-rc1, v5.3, v5.3-rc8, v5.3-rc7, v5.3-rc6, v5.3-rc5, v5.3-rc4, v5.3-rc3, v5.3-rc2, v5.3-rc1, v5.2, v5.2-rc7, v5.2-rc6, v5.2-rc5, v5.2-rc4, v5.2-rc3, v5.2-rc2, v5.2-rc1, v5.1, v5.1-rc7, v5.1-rc6, v5.1-rc5, v5.1-rc4, v5.1-rc3, v5.1-rc2, v5.1-rc1, v5.0, v5.0-rc8, v5.0-rc7, v5.0-rc6, v5.0-rc5, v5.0-rc4, v5.0-rc3, v5.0-rc2, v5.0-rc1, v4.20, v4.20-rc7, v4.20-rc6, v4.20-rc5, v4.20-rc4, v4.20-rc3, v4.20-rc2, v4.20-rc1, v4.19, v4.19-rc8, v4.19-rc7, v4.19-rc6, v4.19-rc5, v4.19-rc4, v4.19-rc3, v4.19-rc2, v4.19-rc1, v4.18, v4.18-rc8, v4.18-rc7, v4.18-rc6, v4.18-rc5, v4.18-rc4, v4.18-rc3, v4.18-rc2, v4.18-rc1, v4.17, v4.17-rc7, v4.17-rc6, v4.17-rc5, v4.17-rc4, v4.17-rc3, v4.17-rc2, v4.17-rc1, v4.16, v4.16-rc7, v4.16-rc6, v4.16-rc5, v4.16-rc4, v4.16-rc3, v4.16-rc2, v4.16-rc1, v4.15, v4.15-rc9, v4.15-rc8, v4.15-rc7, v4.15-rc6, v4.15-rc5, v4.15-rc4, v4.15-rc3, v4.15-rc2, v4.15-rc1, v4.14, v4.14-rc8 |
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b2441318 |
| 01-Nov-2017 |
Greg Kroah-Hartman <[email protected]> |
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
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 <[email protected]> Reviewed-by: Philippe Ombredanne <[email protected]> Reviewed-by: Thomas Gleixner <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
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Revision tags: v4.14-rc7, v4.14-rc6, v4.14-rc5, v4.14-rc4, v4.14-rc3, v4.14-rc2, v4.14-rc1, v4.13, v4.13-rc7, v4.13-rc6, v4.13-rc5, v4.13-rc4, v4.13-rc3, v4.13-rc2, v4.13-rc1, v4.12, v4.12-rc7, v4.12-rc6, v4.12-rc5, v4.12-rc4, v4.12-rc3, v4.12-rc2, v4.12-rc1, v4.11, v4.11-rc8, v4.11-rc7, v4.11-rc6, v4.11-rc5, v4.11-rc4, v4.11-rc3, v4.11-rc2, v4.11-rc1, v4.10, v4.10-rc8, v4.10-rc7, v4.10-rc6, v4.10-rc5, v4.10-rc4, v4.10-rc3, v4.10-rc2, v4.10-rc1, v4.9, v4.9-rc8, v4.9-rc7, v4.9-rc6 |
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6d0d2878 |
| 16-Nov-2016 |
Christian Borntraeger <[email protected]> |
locking/core: Provide common cpu_relax_yield() definition
No need to duplicate the same define everywhere. Since the only user is stop-machine and the only provider is s390, we can use a default imp
locking/core: Provide common cpu_relax_yield() definition
No need to duplicate the same define everywhere. Since the only user is stop-machine and the only provider is s390, we can use a default implementation of cpu_relax_yield() in sched.h.
Suggested-by: Russell King <[email protected]> Signed-off-by: Christian Borntraeger <[email protected]> Reviewed-by: David Hildenbrand <[email protected]> Acked-by: Russell King <[email protected]> Cc: Andrew Morton <[email protected]> Cc: Catalin Marinas <[email protected]> Cc: Heiko Carstens <[email protected]> Cc: Linus Torvalds <[email protected]> Cc: Martin Schwidefsky <[email protected]> Cc: Nicholas Piggin <[email protected]> Cc: Noam Camus <[email protected]> Cc: Paul E. McKenney <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: Will Deacon <[email protected]> Cc: [email protected] Cc: [email protected] Cc: linux-s390 <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]>
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Revision tags: v4.9-rc5, v4.9-rc4, v4.9-rc3 |
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5bd0b85b |
| 25-Oct-2016 |
Christian Borntraeger <[email protected]> |
locking/core, arch: Remove cpu_relax_lowlatency()
As there are no users left, we can remove cpu_relax_lowlatency() implementations from every architecture.
Signed-off-by: Christian Borntraeger <bor
locking/core, arch: Remove cpu_relax_lowlatency()
As there are no users left, we can remove cpu_relax_lowlatency() implementations from every architecture.
Signed-off-by: Christian Borntraeger <[email protected]> Signed-off-by: Peter Zijlstra (Intel) <[email protected]> Cc: Catalin Marinas <[email protected]> Cc: Heiko Carstens <[email protected]> Cc: Linus Torvalds <[email protected]> Cc: Martin Schwidefsky <[email protected]> Cc: Nicholas Piggin <[email protected]> Cc: Noam Camus <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Russell King <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: Will Deacon <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]>
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79ab11cd |
| 25-Oct-2016 |
Christian Borntraeger <[email protected]> |
locking/core: Introduce cpu_relax_yield()
For spinning loops people do often use barrier() or cpu_relax(). For most architectures cpu_relax and barrier are the same, but on some architectures cpu_re
locking/core: Introduce cpu_relax_yield()
For spinning loops people do often use barrier() or cpu_relax(). For most architectures cpu_relax and barrier are the same, but on some architectures cpu_relax can add some latency. For example on power,sparc64 and arc, cpu_relax can shift the CPU towards other hardware threads in an SMT environment. On s390 cpu_relax does even more, it uses an hypercall to the hypervisor to give up the timeslice. In contrast to the SMT yielding this can result in larger latencies. In some places this latency is unwanted, so another variant "cpu_relax_lowlatency" was introduced. Before this is used in more and more places, lets revert the logic and provide a cpu_relax_yield that can be called in places where yielding is more important than latency. By default this is the same as cpu_relax on all architectures.
Signed-off-by: Christian Borntraeger <[email protected]> Signed-off-by: Peter Zijlstra (Intel) <[email protected]> Cc: Catalin Marinas <[email protected]> Cc: Heiko Carstens <[email protected]> Cc: Linus Torvalds <[email protected]> Cc: Martin Schwidefsky <[email protected]> Cc: Nicholas Piggin <[email protected]> Cc: Noam Camus <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Russell King <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: Will Deacon <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]>
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Revision tags: v4.9-rc2, v4.9-rc1, v4.8, v4.8-rc8, v4.8-rc7, v4.8-rc6, v4.8-rc5, v4.8-rc4, v4.8-rc3, v4.8-rc2, v4.8-rc1, v4.7, v4.7-rc7, v4.7-rc6, v4.7-rc5, v4.7-rc4, v4.7-rc3, v4.7-rc2, v4.7-rc1, v4.6, v4.6-rc7, v4.6-rc6, v4.6-rc5, v4.6-rc4, v4.6-rc3, v4.6-rc2, v4.6-rc1 |
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5a846aba |
| 17-Mar-2016 |
Rich Felker <[email protected]> |
sh: add support for J-Core J2 processor
At the CPU/ISA level, the J2 is compatible with SH-2, and thus the changes to add J2 support build on existing SH-2 support. However, J2 does not duplicate th
sh: add support for J-Core J2 processor
At the CPU/ISA level, the J2 is compatible with SH-2, and thus the changes to add J2 support build on existing SH-2 support. However, J2 does not duplicate the memory-mapped SH-2 features like the cache interface. Instead, the cache interfaces is described in the device tree, and new code is added to be able to access the flat device tree at early boot before it is unflattened.
Support is also added for receiving interrupts on trap numbers in the range 16 to 31, since the J-Core aic1 interrupt controller generates these traps. This range was unused but nominally for hardware exceptions on SH-2, and a few values in this range were used for exceptions on SH-2A, but SH-2A has its own version of the relevant code.
No individual cpu subtypes are added for J2 since the intent moving forward is to represent SoCs with device tree rather than as hard-coded subtypes in the kernel. The CPU_SUBTYPE_J2 Kconfig item exists only to fit into the existing cpu selection mechanism until it is overhauled.
Signed-off-by: Rich Felker <[email protected]>
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Revision tags: v4.5, v4.5-rc7, v4.5-rc6, v4.5-rc5, v4.5-rc4, v4.5-rc3, v4.5-rc2, v4.5-rc1, v4.4, v4.4-rc8, v4.4-rc7, v4.4-rc6, v4.4-rc5, v4.4-rc4, v4.4-rc3, v4.4-rc2, v4.4-rc1, v4.3, v4.3-rc7, v4.3-rc6, v4.3-rc5, v4.3-rc4, v4.3-rc3, v4.3-rc2, v4.3-rc1, v4.2, v4.2-rc8, v4.2-rc7, v4.2-rc6, v4.2-rc5, v4.2-rc4, v4.2-rc3, v4.2-rc2, v4.2-rc1, v4.1, v4.1-rc8, v4.1-rc7, v4.1-rc6, v4.1-rc5, v4.1-rc4, v4.1-rc3, v4.1-rc2, v4.1-rc1, v4.0, v4.0-rc7, v4.0-rc6, v4.0-rc5, v4.0-rc4, v4.0-rc3, v4.0-rc2, v4.0-rc1, v3.19, v3.19-rc7, v3.19-rc6, v3.19-rc5, v3.19-rc4, v3.19-rc3, v3.19-rc2, v3.19-rc1, v3.18, v3.18-rc7, v3.18-rc6, v3.18-rc5, v3.18-rc4, v3.18-rc3, v3.18-rc2, v3.18-rc1, v3.17, v3.17-rc7, v3.17-rc6, v3.17-rc5, v3.17-rc4, v3.17-rc3, v3.17-rc2, v3.17-rc1, v3.16, v3.16-rc7, v3.16-rc6, v3.16-rc5, v3.16-rc4 |
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| #
3a6bfbc9 |
| 29-Jun-2014 |
Davidlohr Bueso <[email protected]> |
arch, locking: Ciao arch_mutex_cpu_relax()
The arch_mutex_cpu_relax() function, introduced by 34b133f, is hacky and ugly. It was added a few years ago to address the fact that common cpu_relax() cal
arch, locking: Ciao arch_mutex_cpu_relax()
The arch_mutex_cpu_relax() function, introduced by 34b133f, is hacky and ugly. It was added a few years ago to address the fact that common cpu_relax() calls include yielding on s390, and thus impact the optimistic spinning functionality of mutexes. Nowadays we use this function well beyond mutexes: rwsem, qrwlock, mcs and lockref. Since the macro that defines the call is in the mutex header, any users must include mutex.h and the naming is misleading as well.
This patch (i) renames the call to cpu_relax_lowlatency ("relax, but only if you can do it with very low latency") and (ii) defines it in each arch's asm/processor.h local header, just like for regular cpu_relax functions. On all archs, except s390, cpu_relax_lowlatency is simply cpu_relax, and thus we can take it out of mutex.h. While this can seem redundant, I believe it is a good choice as it allows us to move out arch specific logic from generic locking primitives and enables future(?) archs to transparently define it, similarly to System Z.
Signed-off-by: Davidlohr Bueso <[email protected]> Signed-off-by: Peter Zijlstra <[email protected]> Cc: Andrew Morton <[email protected]> Cc: Anton Blanchard <[email protected]> Cc: Aurelien Jacquiot <[email protected]> Cc: Benjamin Herrenschmidt <[email protected]> Cc: Bharat Bhushan <[email protected]> Cc: Catalin Marinas <[email protected]> Cc: Chen Liqin <[email protected]> Cc: Chris Metcalf <[email protected]> Cc: Christian Borntraeger <[email protected]> Cc: Chris Zankel <[email protected]> Cc: David Howells <[email protected]> Cc: David S. Miller <[email protected]> Cc: Deepthi Dharwar <[email protected]> Cc: Dominik Dingel <[email protected]> Cc: Fenghua Yu <[email protected]> Cc: Geert Uytterhoeven <[email protected]> Cc: Guan Xuetao <[email protected]> Cc: Haavard Skinnemoen <[email protected]> Cc: Hans-Christian Egtvedt <[email protected]> Cc: Heiko Carstens <[email protected]> Cc: Helge Deller <[email protected]> Cc: Hirokazu Takata <[email protected]> Cc: Ivan Kokshaysky <[email protected]> Cc: James E.J. Bottomley <[email protected]> Cc: James Hogan <[email protected]> Cc: Jason Wang <[email protected]> Cc: Jesper Nilsson <[email protected]> Cc: Joe Perches <[email protected]> Cc: Jonas Bonn <[email protected]> Cc: Joseph Myers <[email protected]> Cc: Kees Cook <[email protected]> Cc: Koichi Yasutake <[email protected]> Cc: Lennox Wu <[email protected]> Cc: Linus Torvalds <[email protected]> Cc: Mark Salter <[email protected]> Cc: Martin Schwidefsky <[email protected]> Cc: Matt Turner <[email protected]> Cc: Max Filippov <[email protected]> Cc: Michael Neuling <[email protected]> Cc: Michal Simek <[email protected]> Cc: Mikael Starvik <[email protected]> Cc: Nicolas Pitre <[email protected]> Cc: Paolo Bonzini <[email protected]> Cc: Paul Burton <[email protected]> Cc: Paul E. McKenney <[email protected]> Cc: Paul Gortmaker <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Qais Yousef <[email protected]> Cc: Qiaowei Ren <[email protected]> Cc: Rafael Wysocki <[email protected]> Cc: Ralf Baechle <[email protected]> Cc: Richard Henderson <[email protected]> Cc: Richard Kuo <[email protected]> Cc: Russell King <[email protected]> Cc: Steven Miao <[email protected]> Cc: Steven Rostedt <[email protected]> Cc: Stratos Karafotis <[email protected]> Cc: Tim Chen <[email protected]> Cc: Tony Luck <[email protected]> Cc: Vasily Kulikov <[email protected]> Cc: Vineet Gupta <[email protected]> Cc: Vineet Gupta <[email protected]> Cc: Waiman Long <[email protected]> Cc: Will Deacon <[email protected]> Cc: Wolfram Sang <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]>
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Revision tags: v3.16-rc3, v3.16-rc2, v3.16-rc1, v3.15, v3.15-rc8, v3.15-rc7, v3.15-rc6, v3.15-rc5, v3.15-rc4, v3.15-rc3, v3.15-rc2, v3.15-rc1, v3.14, v3.14-rc8, v3.14-rc7, v3.14-rc6, v3.14-rc5, v3.14-rc4, v3.14-rc3, v3.14-rc2, v3.14-rc1, v3.13, v3.13-rc8, v3.13-rc7, v3.13-rc6, v3.13-rc5, v3.13-rc4, v3.13-rc3, v3.13-rc2, v3.13-rc1, v3.12, v3.12-rc7, v3.12-rc6, v3.12-rc5, v3.12-rc4, v3.12-rc3, v3.12-rc2, v3.12-rc1, v3.11, v3.11-rc7, v3.11-rc6, v3.11-rc5, v3.11-rc4, v3.11-rc3, v3.11-rc2, v3.11-rc1, v3.10, v3.10-rc7, v3.10-rc6, v3.10-rc5, v3.10-rc4, v3.10-rc3, v3.10-rc2, v3.10-rc1, v3.9, v3.9-rc8, v3.9-rc7, v3.9-rc6, v3.9-rc5, v3.9-rc4, v3.9-rc3, v3.9-rc2, v3.9-rc1, v3.8, v3.8-rc7, v3.8-rc6, v3.8-rc5, v3.8-rc4, v3.8-rc3, v3.8-rc2, v3.8-rc1, v3.7, v3.7-rc8, v3.7-rc7, v3.7-rc6, v3.7-rc5, v3.7-rc4, v3.7-rc3, v3.7-rc2, v3.7-rc1 |
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a1ce3928 |
| 02-Oct-2012 |
David Howells <[email protected]> |
UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers
Convert #include "..." to #include <path/...> in kernel system headers.
Signed-off-by: David Howells <dhowell
UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers
Convert #include "..." to #include <path/...> in kernel system headers.
Signed-off-by: David Howells <[email protected]> Acked-by: Arnd Bergmann <[email protected]> Acked-by: Thomas Gleixner <[email protected]> Acked-by: Paul E. McKenney <[email protected]> Acked-by: Dave Jones <[email protected]>
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Revision tags: v3.6, v3.6-rc7, v3.6-rc6, v3.6-rc5, v3.6-rc4, v3.6-rc3, v3.6-rc2, v3.6-rc1, v3.5, v3.5-rc7, v3.5-rc6, v3.5-rc5, v3.5-rc4, v3.5-rc3, v3.5-rc2, v3.5-rc1, v3.4, v3.4-rc7 |
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0b25b7c8 |
| 10-May-2012 |
Phil Edworthy <[email protected]> |
sh: Add sh7269 device
This is an sh2a device (max 266MHz) with FPU, video display controller (VDC), 8 serial ports, 4 I2C channels, 3 CAN ports, SD and on-chip USB.
Signed-off-by: Phil Edworthy <ph
sh: Add sh7269 device
This is an sh2a device (max 266MHz) with FPU, video display controller (VDC), 8 serial ports, 4 I2C channels, 3 CAN ports, SD and on-chip USB.
Signed-off-by: Phil Edworthy <[email protected]> Signed-off-by: Paul Mundt <[email protected]>
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51ce3068 |
| 09-May-2012 |
Phil Edworthy <[email protected]> |
sh: Add sh7264 device
This is an sh2a device with FPU, video display controller (VDC), 8 serial ports, 3 I2C channels, 2 CAN ports, SD and on-chip USB.
Signed-off-by: Phil Edworthy <phil.edworthy@r
sh: Add sh7264 device
This is an sh2a device with FPU, video display controller (VDC), 8 serial ports, 3 I2C channels, 2 CAN ports, SD and on-chip USB.
Signed-off-by: Phil Edworthy <[email protected]> Signed-off-by: Paul Mundt <[email protected]>
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86627c93 |
| 07-May-2012 |
Thomas Gleixner <[email protected]> |
sh: Remove cpu_idle_wait()
cpuidle uses generic kick_all_cpus_sync() now. Remove the unused code.
Signed-off-by: Thomas Gleixner <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: P
sh: Remove cpu_idle_wait()
cpuidle uses generic kick_all_cpus_sync() now. Remove the unused code.
Signed-off-by: Thomas Gleixner <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Paul Mundt <[email protected]> Link: http://lkml.kernel.org/r/[email protected]
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Revision tags: v3.4-rc6, v3.4-rc5, v3.4-rc4 |
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ea0588cb |
| 20-Apr-2012 |
Thomas Gleixner <[email protected]> |
sh: Use generic idle thread allocation
Signed-off-by: Thomas Gleixner <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Rusty Russell <[email protected]> Cc: Paul E. McKenney <p
sh: Use generic idle thread allocation
Signed-off-by: Thomas Gleixner <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Rusty Russell <[email protected]> Cc: Paul E. McKenney <[email protected]> Cc: Srivatsa S. Bhat <[email protected]> Acked-by: Paul Mundt <[email protected]> Link: http://lkml.kernel.org/r/[email protected]
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Revision tags: v3.4-rc3 |
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fea88a0c |
| 12-Apr-2012 |
Nobuhiro Iwamatsu <[email protected]> |
sh: Add initial support for SH7734 CPU subtype
This implements initial support for the SH7734. This adds support SCIF, TMU and RTC.
Signed-off-by: Nobuhiro Iwamatsu <[email protected]
sh: Add initial support for SH7734 CPU subtype
This implements initial support for the SH7734. This adds support SCIF, TMU and RTC.
Signed-off-by: Nobuhiro Iwamatsu <[email protected]> Signed-off-by: Paul Mundt <[email protected]>
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Revision tags: v3.4-rc2, v3.4-rc1 |
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e839ca52 |
| 28-Mar-2012 |
David Howells <[email protected]> |
Disintegrate asm/system.h for SH
Disintegrate asm/system.h for SH.
Signed-off-by: David Howells <[email protected]> cc: [email protected]
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Revision tags: v3.3, v3.3-rc7, v3.3-rc6, v3.3-rc5, v3.3-rc4, v3.3-rc3, v3.3-rc2, v3.3-rc1, v3.2, v3.2-rc7, v3.2-rc6, v3.2-rc5, v3.2-rc4, v3.2-rc3, v3.2-rc2, v3.2-rc1, v3.1, v3.1-rc10, v3.1-rc9, v3.1-rc8, v3.1-rc7, v3.1-rc6, v3.1-rc5, v3.1-rc4, v3.1-rc3, v3.1-rc2, v3.1-rc1, v3.0, v3.0-rc7, v3.0-rc6, v3.0-rc5, v3.0-rc4, v3.0-rc3, v3.0-rc2, v3.0-rc1, v2.6.39, v2.6.39-rc7, v2.6.39-rc6, v2.6.39-rc5, v2.6.39-rc4, v2.6.39-rc3, v2.6.39-rc2, v2.6.39-rc1, v2.6.38, v2.6.38-rc8, v2.6.38-rc7, v2.6.38-rc6, v2.6.38-rc5, v2.6.38-rc4, v2.6.38-rc3, v2.6.38-rc2, v2.6.38-rc1 |
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fac6c2a8 |
| 12-Jan-2011 |
Magnus Damm <[email protected]> |
sh: sh7372 SH4AL-DSP probe support
Add probe support for the sh7372 SH4AL-DSP core.
The most common use case for this is when the system boots from the ARM core in the sh7372 and uses the SH core f
sh: sh7372 SH4AL-DSP probe support
Add probe support for the sh7372 SH4AL-DSP core.
The most common use case for this is when the system boots from the ARM core in the sh7372 and uses the SH core for application offload as a slave CPU.
May also be used to boot the sh7372 from the SH core.
Signed-off-by: Magnus Damm <[email protected]> Signed-off-by: Paul Mundt <[email protected]>
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Revision tags: v2.6.37, v2.6.37-rc8, v2.6.37-rc7, v2.6.37-rc6, v2.6.37-rc5, v2.6.37-rc4, v2.6.37-rc3, v2.6.37-rc2, v2.6.37-rc1 |
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2f98492c |
| 26-Oct-2010 |
Paul Mundt <[email protected]> |
sh: Expose physical addressing mode through cpuinfo.
CPUs can be in either the legacy 29-bit or 32-bit physical addressing modes. This follows the x86 approach of tracking the phys bits in cpuinfo a
sh: Expose physical addressing mode through cpuinfo.
CPUs can be in either the legacy 29-bit or 32-bit physical addressing modes. This follows the x86 approach of tracking the phys bits in cpuinfo and exposing it to userspace through procfs.
This change was requested to permit kexec-tools to detect the physical addressing mode in order to determine the appropriate address mangling.
Signed-off-by: Paul Mundt <[email protected]>
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Revision tags: v2.6.36, v2.6.36-rc8, v2.6.36-rc7, v2.6.36-rc6, v2.6.36-rc5, v2.6.36-rc4, v2.6.36-rc3, v2.6.36-rc2, v2.6.36-rc1, v2.6.35, v2.6.35-rc6, v2.6.35-rc5, v2.6.35-rc4, v2.6.35-rc3, v2.6.35-rc2, v2.6.35-rc1, v2.6.34, v2.6.34-rc7, v2.6.34-rc6 |
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8db2bc45 |
| 26-Apr-2010 |
Paul Mundt <[email protected]> |
sh: cache secondary CPUs idle loop.
This provides a cache of the secondary CPUs idle loop for the cases where hotplug simply enters a low power state instead of resetting or powering off the core.
sh: cache secondary CPUs idle loop.
This provides a cache of the secondary CPUs idle loop for the cases where hotplug simply enters a low power state instead of resetting or powering off the core.
Signed-off-by: Paul Mundt <[email protected]>
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4a6feab0 |
| 21-Apr-2010 |
Paul Mundt <[email protected]> |
sh: __cpuinit annotate the CPU init path.
All of the regular CPU init path needs to be __cpuinit annotated for CPU hotplug.
Signed-off-by: Paul Mundt <[email protected]>
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a9079ca0 |
| 21-Apr-2010 |
Paul Mundt <[email protected]> |
sh: Tidy CPU probing and fixup section annotations.
This does a detect_cpu_and_cache_system() -> cpu_probe() rename, tidies up the unused return value, and stuffs it under __cpuinit in preparation f
sh: Tidy CPU probing and fixup section annotations.
This does a detect_cpu_and_cache_system() -> cpu_probe() rename, tidies up the unused return value, and stuffs it under __cpuinit in preparation for CPU hotplug.
Signed-off-by: Paul Mundt <[email protected]>
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Revision tags: v2.6.34-rc5, v2.6.34-rc4, v2.6.34-rc3, v2.6.34-rc2, v2.6.34-rc1, v2.6.33 |
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94ea5e44 |
| 23-Feb-2010 |
Paul Mundt <[email protected]> |
sh: wire up SET/GET_UNALIGN_CTL.
This hooks up the SET/GET_UNALIGN_CTL knobs cribbing the bulk of it from the PPC and ia64 implementations. The thread flags happen to be the logical inverse of what
sh: wire up SET/GET_UNALIGN_CTL.
This hooks up the SET/GET_UNALIGN_CTL knobs cribbing the bulk of it from the PPC and ia64 implementations. The thread flags happen to be the logical inverse of what the global fault mode is set to, so this works out pretty cleanly. By default the global fault mode is used, with tasks now being able to override their own settings via prctl().
Signed-off-by: Paul Mundt <[email protected]>
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Revision tags: v2.6.33-rc8, v2.6.33-rc7, v2.6.33-rc6, v2.6.33-rc5 |
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3ef2932b |
| 19-Jan-2010 |
Paul Mundt <[email protected]> |
sh64: Fix up the build for the thread_xstate changes.
This updates the sh64 processor info with the sh32 changes in order to tie in to the generic task_xstate management code.
Signed-off-by: Paul M
sh64: Fix up the build for the thread_xstate changes.
This updates the sh64 processor info with the sh32 changes in order to tie in to the generic task_xstate management code.
Signed-off-by: Paul Mundt <[email protected]>
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d9b9487a |
| 18-Jan-2010 |
Paul Mundt <[email protected]> |
sh: Handle early ioremaps through fixed mappings.
This adds in a mem_init_done to work out when a standard ioremap() is possible, falling back to the fixmap based ioremap otherwise.
Signed-off-by:
sh: Handle early ioremaps through fixed mappings.
This adds in a mem_init_done to work out when a standard ioremap() is possible, falling back to the fixmap based ioremap otherwise.
Signed-off-by: Paul Mundt <[email protected]>
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Revision tags: v2.6.33-rc4, v2.6.33-rc3, v2.6.33-rc2, v2.6.33-rc1, v2.6.32, v2.6.32-rc8, v2.6.32-rc7, v2.6.32-rc6, v2.6.32-rc5, v2.6.32-rc4, v2.6.32-rc3, v2.6.32-rc1, v2.6.32-rc2, v2.6.31, v2.6.31-rc9, v2.6.31-rc8, v2.6.31-rc7 |
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c01f0f1a |
| 21-Aug-2009 |
Yoshihiro Shimoda <[email protected]> |
sh: Add initial support for SH7757 CPU subtype
Signed-off-by: Yoshihiro Shimoda <[email protected]> Signed-off-by: Paul Mundt <[email protected]>
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