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* ARM: rpc: use legacy_timer_tickArnd Bergmann2020-10-301-1/+1
| | | | | | | | rpc is the only user of the timer_tick() function now, and can just call the newly added generic version instead. Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
* treewide: Use fallthrough pseudo-keywordGustavo A. R. Silva2020-08-241-1/+1
| | | | | | | | | | Replace the existing /* fall through */ comments and its variants with the new pseudo-keyword macro fallthrough[1]. Also, remove unnecessary fall-through markings when it is the case. [1] https://www.kernel.org/doc/html/v5.7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
* ARM: rpc: Change blacklist to quirklist in ecode.c filePaul Schulz2020-07-171-9/+9
| | | | | | | | | | | | This is a functionally trivial patch which removes the word 'blacklist' (and variations) from this code and replaces it with 'quirklist' It has no other effect. Link: https://lore.kernel.org/r/20200715024755.967904-1-paul@mawsonlakes.org Signed-off-by: Paul Schulz <paul@mawsonlakes.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
* ARM: 8966/1: rpc: replace setup_irq() by request_irq()afzal mohammed2020-03-191-6/+2
| | | | | | | | | | | | | | | request_irq() is preferred over setup_irq(). Invocations of setup_irq() occur after memory allocators are ready. Per tglx[1], setup_irq() existed in olden days when allocators were not ready by the time early interrupts were initialized. Hence replace setup_irq() by request_irq(). [1] https://lkml.kernel.org/r/alpine.DEB.2.20.1710191609480.1971@nanos Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
* ARM: riscpc: Mark expected switch fall-throughGustavo A. R. Silva2019-08-211-0/+1
| | | | | | | | | | | | | | | | Mark switch cases where we are expecting to fall through. Fix the following warning (Building: rpc_defconfig arm): arch/arm/mach-rpc/riscpc.c: In function ‘parse_tag_acorn’: arch/arm/mach-rpc/riscpc.c:48:13: warning: this statement may fall through [-Wimplicit-fallthrough=] vram_size += PAGE_SIZE * 256; ~~~~~~~~~~^~~~~~~~~~~~~~~~~~ arch/arm/mach-rpc/riscpc.c:49:2: note: here case 256: ^~~~ Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
* Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/socLinus Torvalds2019-07-209-170/+256
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull ARM SoC platform updates from Olof Johansson: "SoC platform changes. Main theme this merge window: - The Netx platform (Netx 100/500) platform is removed by Linus Walleij-- the SoC doesn't have active maintainers with hardware, and in discussions with the vendor the agreement was that it's OK to remove. - Russell King has a series of patches that cleans up and refactors SA1101 and RiscPC support" * tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (47 commits) ARM: stm32: use "depends on" instead of "if" after prompt ARM: sa1100: convert to common clock framework ARM: exynos: Cleanup cppcheck shifting warning ARM: pxa/lubbock: remove lubbock_set_misc_wr() from global view ARM: exynos: Only build MCPM support if used arm: add missing include platform-data/atmel.h ARM: davinci: Use GPIO lookup table for DA850 LEDs ARM: OMAP2: drop explicit assembler architecture ARM: use arch_extension directive instead of arch argument ARM: imx: Switch imx7d to imx-cpufreq-dt for speed-grading ARM: bcm: Enable PINCTRL for ARCH_BRCMSTB ARM: bcm: Enable ARCH_HAS_RESET_CONTROLLER for ARCH_BRCMSTB ARM: riscpc: enable chained scatterlist support ARM: riscpc: reduce IRQ handling code ARM: riscpc: move RiscPC assembly files from arch/arm/lib to mach-rpc ARM: riscpc: parse video information from tagged list ARM: riscpc: add ecard quirk for Atomwide 3port serial card MAINTAINERS: mvebu: Add git entry soc: ti: pm33xx: Add a print while entering RTC only mode with DDR in self-refresh ARM: OMAP2+: Make some variables static ...
| * Merge branch 'sa1100-for-next'; commit 'riscpc^{/ARM: riscpc: enable chained ↵Russell King2019-07-039-170/+267
| |\ | | | | | | | | | scatterlist support}' into for-arm-soc
| | * ARM: riscpc: reduce IRQ handling codeRussell King2019-06-111-86/+47
| | | | | | | | | | | | | | | | | | | | | | | | | | | Reduce the amount of IRQ handling code that RiscPC requires; there's no need for this duplication if we place the virtual iomem base address for each bank directly in the irq_data structure. Provide helpers to get the base address, and setup the base address and register mask. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
| | * ARM: riscpc: move RiscPC assembly files from arch/arm/lib to mach-rpcRussell King2019-06-114-1/+110
| | | | | | | | | | | | | | | | | | | | | Move the assembly files for RiscPC from arch/arm/lib to mach-rpc so that we contain RiscPC bits in one subdirectory. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
| | * ARM: riscpc: parse video information from tagged listRussell King2019-06-111-15/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Correctly parse the video information from the tagged list, so that we end up with the right bytes-per-char values. When booting with a tagged list rather than a param block, this allows the decompressor to display its messages during boot on the screen. (Boot loaders normally pass a param block on this platform, but the latest boot loader version recently released does not.) Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
| | * ARM: riscpc: add ecard quirk for Atomwide 3port serial cardRussell King2019-06-111-2/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | Atomwide 3port serial cards seem to leave their interrupts active when exiting RISC OS, resulting in an interrupt storm during boot, and the expansion card interrupt being disabled. Avoid this by manually disabling the interrupt on each serial port via a custom quirk function. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
| | * ARM: riscpc: dma: use __iomem pointers for writing DMARussell King2019-05-091-17/+17
| | | | | | | | | | | | | | | | | | | | | | | | Use __iomem pointers for efficiency to write the DMA registers. This avoids the compiler emitting several instructions for each access to calculate the register address. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
| | * ARM: riscpc: dma: improve address/length writingRussell King2019-05-091-15/+11
| | | | | | | | | | | | | | | | | | Rearrange writing the DMA addresses to generate more efficient code. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
| | * ARM: riscpc: dma: make state a local variableRussell King2019-05-091-8/+9
| | | | | | | | | | | | | | | | | | Make state a local variable to avoid rewriting it in the DMA loop. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
| | * ARM: riscpc: dma: eliminate "cur_sg" scatterlist usageRussell King2019-05-091-14/+15
| | | | | | | | | | | | | | | | | | | | | All we really need is the DMA address and size, we don't need the baggage of a full scatterlist structure. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
| | * ARM: riscpc: fix DMARussell King2019-05-091-1/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | DMA got broken a while back in two different ways: 1) a change in the behaviour of disable_irq() to wait for the interrupt to finish executing causes us to deadlock at the end of DMA. 2) a change to avoid modifying the scatterlist left the first transfer uninitialised. DMA is only used with expansion cards, so has gone unnoticed. Fixes: fa4e99899932 ("[ARM] dma: RiscPC: don't modify DMA SG entries") Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
| | * ARM: riscpc: fix ecard printingRussell King2019-05-091-4/+7
| | | | | | | | | | | | | | | | | | | | | Multiple printk() statements appear to get broken into separate lines, which messes up the formatting. Fix these up. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
| | * ARM: riscpc: fix lack of keyboard interrupts after irq conversionRussell King2019-05-091-1/+2
| | | | | | | | | | | | | | | | | | | | | Fix lack of keyboard interrupts for RiscPC due to incorrect conversion. Fixes: e8d36d5dbb6a ("ARM: kill off set_irq_flags usage") Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
| | * ARM: riscpc: replace gettimeoffset() with clocksourceRussell King2019-05-091-13/+25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Replace the old gettimeoffset() interface (which became buggy in several ways) with a clocksource that atomically reads the count and status from the timer, and corrects the count as appropriate ensuring proper resolution of time without time warping backwards. We keep the original periodic timer non-clock event implementation to provide the kernel with a regular source of interrupts, which are required to keep the clocksource properly updated. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
* | | treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500Thomas Gleixner2019-06-1912-48/+12
|/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Based on 2 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Enrico Weigelt <info@metux.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | treewide: Add SPDX license identifier - Makefile/KconfigThomas Gleixner2019-05-212-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Add SPDX license identifiers to all Make/Kconfig files which: - Have no license information of any form These files fall under the project license, GPL v2 only. The resulting SPDX license identifier is: GPL-2.0-only Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | arm: use a dummy struct device for ISA DMA use of the DMA APIChristoph Hellwig2019-04-081-1/+7
|/ | | | | | This gets rid of the last NULL dev argument passed to the DMA API. Signed-off-by: Christoph Hellwig <hch@lst.de>
* mm: do not initialize TLB stack vma's with vma_init()Linus Torvalds2018-08-011-4/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 2c4541e24c55 ("mm: use vma_init() to initialize VMAs on stack and data segments") tried to initialize various left-over ad-hoc vma's "properly", but actually made things worse for the temporary vma's used for TLB flushing. vma_init() doesn't actually initialize all of the vma, just a few fields, so doing something like - struct vm_area_struct vma = { .vm_mm = tlb->mm, }; + struct vm_area_struct vma; + + vma_init(&vma, tlb->mm); was actually very bad: instead of having a nicely initialized vma with every field but "vm_mm" zeroed, you'd have an entirely uninitialized vma with only a couple of fields initialized. And they weren't even fields that the code in question mostly cared about. The flush_tlb_range() function takes a "struct vma" rather than a "struct mm_struct", because a few architectures actually care about what kind of range it is - being able to only do an ITLB flush if it's a range that doesn't have data accesses enabled, for example. And all the normal users already have the vma for doing the range invalidation. But a few people want to call flush_tlb_range() with a range they just made up, so they also end up using a made-up vma. x86 just has a special "flush_tlb_mm_range()" function for this, but other architectures (arm and ia64) do the "use fake vma" thing instead, and thus got caught up in the vma_init() changes. At the same time, the TLB flushing code really doesn't care about most other fields in the vma, so vma_init() is just unnecessary and pointless. This fixes things by having an explicit "this is just an initializer for the TLB flush" initializer macro, which is used by the arm/arm64/ia64 people who mis-use this interface with just a dummy vma. Fixes: 2c4541e24c55 ("mm: use vma_init() to initialize VMAs on stack and data segments") Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Kirill Shutemov <kirill.shutemov@linux.intel.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: John Stultz <john.stultz@linaro.org> Cc: Hugh Dickins <hughd@google.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* mm: use vma_init() to initialize VMAs on stack and data segmentsKirill A. Shutemov2018-07-271-1/+1
| | | | | | | | | | | | | | | | Make sure to initialize all VMAs properly, not only those which come from vm_area_cachep. Link: http://lkml.kernel.org/r/20180724121139.62570-3-kirill.shutemov@linux.intel.com Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* proc: introduce proc_create_single{,_data}Christoph Hellwig2018-05-161-14/+2
| | | | | | | | | Variants of proc_create{,_data} that directly take a seq_file show callback and drastically reduces the boilerplate code in the callers. All trivial callers converted over. Signed-off-by: Christoph Hellwig <hch@lst.de>
* License cleanup: add SPDX GPL-2.0 license identifier to files with no licenseGreg Kroah-Hartman2017-11-023-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* ARM: rpc: rename RAM_SIZE macroArnd Bergmann2017-07-271-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | The RAM_SIZE macro in mach/hardware.h conflicts with macros of the same name in multiple drivers, leading to annoying build warnings: In file included from drivers/net/ethernet/cirrus/cs89x0.c:79:0: drivers/net/ethernet/cirrus/cs89x0.h:324:0: error: "RAM_SIZE" redefined [-Werror] #define RAM_SIZE 0x1000 /* The card has 4k bytes or RAM */ ^ In file included from /git/arm-soc/arch/arm/mach-rpc/include/mach/io.h:16:0, from /git/arm-soc/arch/arm/include/asm/io.h:194, from /git/arm-soc/include/linux/scatterlist.h:8, from /git/arm-soc/include/linux/dmaengine.h:24, from /git/arm-soc/include/linux/netdevice.h:38, from /git/arm-soc/drivers/net/ethernet/cirrus/cs89x0.c:54: arch/arm/mach-rpc/include/mach/hardware.h:28:0: note: this is the location of the previous definition #define RAM_SIZE 0x10000000 We don't use RAM_SIZE/RAM_START at all, so we could just remove them, but it might be nice to leave them for documentation purposes, so this renames them to RPC_RAM_SIZE/RPC_RAM_START in order to avoid the build warnings Signed-off-by: Arnd Bergmann <arnd@arndb.de>
* arm: mach-rpc: ecard: fix build errorGreg Kroah-Hartman2017-06-141-1/+1
| | | | | | | | | The last commit from me had a missing ';' which broke the build. Thanks to Arnd for pointing out the issue. Reported-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* arm: ecard: fix dev_groups patch typoGreg Kroah-Hartman2017-06-101-1/+1
| | | | | | | | | | | Commit 71d1e5d71cec ("arm: ecard: use dev_groups and not dev_attrs for bus_type") had a typo in the resource attribute definition. Fix that up. Reported-by: kbuild test robot <fengguang.wu@intel.com> Fixes: 71d1e5d71cec ("arm: ecard: use dev_groups and not dev_attrs for bus_type") Cc: Russell King <linux@armlinux.org.uk> Cc: <linux-arm-kernel@lists.infradead.org> Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
* arm: ecard: use dev_groups and not dev_attrs for bus_typeGreg Kroah-Hartman2017-06-091-17/+23
| | | | | | | | | | The dev_attrs field has long been "depreciated" and is finally being removed, so move the driver to use the "correct" dev_groups field instead for struct bus_type. Cc: Russell King <linux@armlinux.org.uk> Cc: <linux-arm-kernel@lists.infradead.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* sched/headers: Prepare for new header dependencies before moving code to ↵Ingo Molnar2017-03-021-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | <linux/sched/mm.h> We are going to split <linux/sched/mm.h> out of <linux/sched.h>, which will have to be picked up from other headers and a couple of .c files. Create a trivial placeholder <linux/sched/mm.h> file that just maps to <linux/sched.h> to make this patch obviously correct and bisectable. The APIs that are going to be moved first are: mm_alloc() __mmdrop() mmdrop() mmdrop_async_fn() mmdrop_async() mmget_not_zero() mmput() mmput_async() get_task_mm() mm_access() mm_release() Include the new header in the files that are going to need it. Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
* Replace <asm/uaccess.h> with <linux/uaccess.h> globallyLinus Torvalds2016-12-241-1/+1
| | | | | | | | | | | | | This was entirely automated, using the script by Al: PATT='^[[:blank:]]*#[[:blank:]]*include[[:blank:]]*<asm/uaccess.h>' sed -i -e "s!$PATT!#include <linux/uaccess.h>!" \ $(git grep -l "$PATT"|grep -v ^include/linux/uaccess.h) to do the replacement at the end of the merge window. Requested-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* ARM: document and update UNCACHEABLE_ADDR definitionsRussell King2016-08-261-1/+1
| | | | | | | | | | | | | Document the UNCACHEABLE_ADDR definitions for footbridge and SA1100 so that we know where they're located and/or what they're accessing. Change RiscPC to calculate the UNCACHEABLE_ADDR value from FLUSH_BASE as that's where we locate that. UNCACHEABLE_ADDR is used to perform an uncached access (ARMv4 terminology) necessary to force a CPU clock-switch to the memory- speed clock, as required for entering WFI. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
* ARM: 8532/1: uncompress: mark putc as inlineArnd Bergmann2016-02-221-1/+1
| | | | | | | | | | | | | | | | | | | When CONFIG_DEBUG_ICEDCC is set, we don't use the platform specific putc() function, but use icedcc_putc() instead, so putc is unused and causes a compile time warning: In file included from ../arch/arm/boot/compressed/misc.c:28:0: arch/arm/mach-rpc/include/mach/uncompress.h:79:13: warning: 'putc' defined but not used [-Wunused-function] arch/arm/mach-w90x900/include/mach/uncompress.h:30:13: warning: 'putc' defined but not used [-Wunused-function] On most platforms, this does not happen, because putc is defined as 'static inline' so the compiler will automatically drop it when it's unused. This changes the remaining seven platforms to behave the same way. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* genirq: Remove irq argument from irq flow handlersThomas Gleixner2015-09-161-2/+1
| | | | | | | | | | | | | | Most interrupt flow handlers do not use the irq argument. Those few which use it can retrieve the irq number from the irq descriptor. Remove the argument. Search and replace was done with coccinelle and some extra helper scripts around it. Thanks to Julia for her help! Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Julia Lawall <Julia.Lawall@lip6.fr> Cc: Jiang Liu <jiang.liu@linux.intel.com>
* ARM: kill off set_irq_flags usageRob Herring2015-07-282-9/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | set_irq_flags is ARM specific with custom flags which have genirq equivalents. Convert drivers to use the genirq interfaces directly, so we can kill off set_irq_flags. The translation of flags is as follows: IRQF_VALID -> !IRQ_NOREQUEST IRQF_PROBE -> !IRQ_NOPROBE IRQF_NOAUTOEN -> IRQ_NOAUTOEN For IRQs managed by an irqdomain, the irqdomain core code handles clearing and setting IRQ_NOREQUEST already, so there is no need to do this in .map() functions and we can simply remove the set_irq_flags calls. Some users also modify IRQ_NOPROBE and this has been maintained although it is not clear that is really needed. There appears to be a great deal of blind copy and paste of this code. Signed-off-by: Rob Herring <robh@kernel.org> Cc: Russell King <linux@arm.linux.org.uk> Cc: Sekhar Nori <nsekhar@ti.com> Cc: Kevin Hilman <khilman@deeprootsystems.com> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Andrew Lunn <andrew@lunn.ch> Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Cc: Gregory Clement <gregory.clement@free-electrons.com> Acked-by: Hans Ulli Kroll <ulli.kroll@googlemail.com> Acked-by: Shawn Guo <shawnguo@kernel.org> Cc: Sascha Hauer <kernel@pengutronix.de> Cc: Imre Kaloz <kaloz@openwrt.org> Acked-by: Krzysztof Halasa <khalasa@piap.pl> Cc: Greg Ungerer <gerg@uclinux.org> Cc: Roland Stigge <stigge@antcom.de> Cc: Tony Lindgren <tony@atomide.com> Cc: Daniel Mack <daniel@zonque.org> Cc: Haojian Zhuang <haojian.zhuang@gmail.com> Cc: Robert Jarzmik <robert.jarzmik@free.fr> Cc: Simtec Linux Team <linux@simtec.co.uk> Cc: Kukjin Kim <kgene@kernel.org> Cc: Krzysztof Kozlowski <k.kozlowski@samsung.com> Acked-by: Wan ZongShun <mcuos.com@gmail.com> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-omap@vger.kernel.org Cc: linux-samsung-soc@vger.kernel.org Tested-by: Kevin Hilman <khilman@linaro.org> Signed-off-by: Olof Johansson <olof@lixom.net>
* kbuild: remove unnecessary variable initializaionsMasahiro Yamada2014-10-021-4/+0
| | | | | | | | | | | | | | | | Clearing obj-y, obj-m, obj-n, obj- in each Makefile is a useless habit. They are non-exported variables; therefore they are always empty whenever descending into each subdirectory. (Moreorver, obj-y and obj-m are also set to empty at the beginning of scripts/Makefile.build) Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Acked-by: Peter Foley <pefoley2@pefoley.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Michal Marek <mmarek@suse.cz>
* ARM: 8113/1: remove remaining definitions of PLAT_PHYS_OFFSET from ↵Uwe Kleine-König2014-07-301-5/+0
| | | | | | | | | | | | | | | | | | | | | | <mach/memory.h> The platforms selecting NEED_MACH_MEMORY_H defined the start address of their physical memory in the respective <mach/memory.h>. With ARM_PATCH_PHYS_VIRT=y (which is quite common today) this is useless though because the definition isn't used but determined dynamically. So remove the definitions from all <mach/memory.h> and provide the Kconfig symbol PHYS_OFFSET with the respective defaults in case ARM_PATCH_PHYS_VIRT isn't enabled. This allows to drop the dependency of PHYS_OFFSET on !NEED_MACH_MEMORY_H which prevents compiling an integrator nommu-kernel. (CONFIG_PAGE_OFFSET which has "default PHYS_OFFSET if !MMU" expanded to "0x" because CONFIG_PHYS_OFFSET doesn't exist as INTEGRATOR selects NEED_MACH_MEMORY_H.) Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* Merge tag 'cleanup-3.15' of ↵Linus Torvalds2014-04-052-23/+9
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC cleanups from Arnd Bergmann: "These cleanup patches are mainly move stuff around and should all be harmless. They are mainly split out so that other branches can be based on top to avoid conflicts. Notable changes are: - We finally remove all mach/timex.h, after CLOCK_TICK_RATE is no longer used (Uwe Kleine-König) - The Qualcomm MSM platform is split out into legacy mach-msm and new-style mach-qcom, to allow easier maintainance of the new hardware support without regressions (Kumar Gala) - A rework of some of the Kconfig logic to simplify multiplatform support (Rob Herring) - Samsung Exynos gets closer to supporting multiplatform (Sachin Kamat and others) - mach-bcm3528 gets merged into mach-bcm (Stephen Warren) - at91 gains some common clock framework support (Alexandre Belloni, Jean-Jacques Hiblot and other French people)" * tag 'cleanup-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (89 commits) ARM: hisi: select HAVE_ARM_SCU only for SMP ARM: efm32: allow uncompress debug output ARM: prima2: build reset code standalone ARM: at91: add PWM clock ARM: at91: move sam9261 SoC to common clk ARM: at91: prepare common clk transition for sam9261 SoC ARM: at91: updated the at91_dt_defconfig with support for the ADS7846 ARM: at91: dt: sam9261: Device Tree support for the at91sam9261ek ARM: at91: dt: defconfig: Added the sam9261 to the list of DT-enabled SOCs ARM: at91: dt: Add at91sam9261 dt SoC support ARM: at91: switch sam9rl to common clock framework ARM: at91/dt: define main clk frequency of at91sam9rlek ARM: at91/dt: define at91sam9rl clocks ARM: at91: prepare common clk transition for sam9rl SoCs ARM: at91: prepare sam9 dt boards transition to common clk ARM: at91: dt: sam9rl: Device Tree for the at91sam9rlek ARM: at91/defconfig: Add the sam9rl to the list of DT-enabled SOCs ARM: at91: Add at91sam9rl DT SoC support ARM: at91: prepare at91sam9rl DT transition ARM: at91/defconfig: refresh at91sam9260_9g20_defconfig ...
| * ARM: drop <mach/timex.h> for !ARCH_MULTIPLATFORM, tooUwe Kleine-König2013-12-201-17/+0
| | | | | | | | | | | | | | | | | | | | | | | | While <mach/timex.h> isn't used for multi-platform builds since long it still is for "normal" builds. As the previous patches fix all sites to not make use of this per-platform file, it can go now for good also for platforms that are not (yet) converted to multi-platform. While at it there are no users of CLOCK_TICK_RATE any more, so also drop the dummy #define. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
| * ARM: rpc: stop using <mach/timex.h>Uwe Kleine-König2013-12-201-6/+9
| | | | | | | | | | | | | | | | | | The rpc timekeeping code uses the symbol LATCH which depends on CLOCK_TICK_RATE which is defined in rpc's <mach/timex.h>. As this header will go away in a later patch introduce a local variable holding the same value as LATCH and use that instead. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
* | ARM: 8000/1: misc: remove deprecated IRQF_DISABLEDMichael Opdenacker2014-03-122-2/+1
|/ | | | | | | | | | | | This patch removes the use of the IRQF_DISABLED flag from miscellaneous code in mach-xxx and plat-xxx This flag is a NOOP since 2.6.35 and it will be removed one day. Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: debug: move 8250 debug include into arch/arm/include/debug/Russell King2013-08-251-13/+0
| | | | | | | | | Now that the 8250 debug include can stand alone without requiring platforms to provide any macros, move it into the debug directory so it can be directly included. This allows us to get rid of a lot of debug-macros include files. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: debug: provide 8250 debug uart phys/virt address configuration optionsRussell King2013-08-251-8/+0
| | | | | | | Move the definition of the UART register addresses out of the platform specific header file into the Kconfig files. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: debug: provide 8250 debug uart register shift configuration optionRussell King2013-08-251-1/+0
| | | | | | | Move the definition of the UART register shift out of the platform specific header file into the Kconfig files. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: debug: provide 8250 debug uart flow control configuration optionRussell King2013-08-251-1/+0
| | | | | | | Move the definition out of the machine class debug-macro.S header into the Kconfig files. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* reboot: arm: change reboot_mode to use enum reboot_modeRobin Holt2013-07-091-1/+2
| | | | | | | | | | | | | | | | Preparing to move the parsing of reboot= to generic kernel code forces the change in reboot_mode handling to use the enum. [akpm@linux-foundation.org: fix arch/arm/mach-socfpga/socfpga.c] Signed-off-by: Robin Holt <holt@sgi.com> Cc: Russell King <rmk+kernel@arm.linux.org.uk> Cc: Russ Anderson <rja@sgi.com> Cc: Robin Holt <holt@sgi.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge tag 'cleanup-decompwdog-3.9' of ↵Olof Johansson2013-02-051-5/+0
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.linaro.org/people/shawnguo/linux-2.6 into next/cleanup From Shawn Guo: The series cleans up ARCH_HAS_DECOMP_WDOG and arch_decomp_wdog which are unused on ARM architecure. Samsung has some code setting up wdog in arch_decomp_wdog(). But since CONFIG_S3C_BOOT_WATCHDOG is defined nowhere, it will not run. Otherwise, system can not boot at all when wdog is set up but no one pats it. * tag 'cleanup-decompwdog-3.9' of git://git.linaro.org/people/shawnguo/linux-2.6: ARM: samsung: remove unused arch_decomp_wdog() code ARM: remove unused arch_decomp_wdog() ARM: decompress: remove unused ARCH_HAS_DECOMP_WDOG Signed-off-by: Olof Johansson <olof@lixom.net>
| * ARM: remove unused arch_decomp_wdog()Shawn Guo2013-01-111-5/+0
| | | | | | | | | | | | | | | | | | | | With ARCH_HAS_DECOMP_WDOG removed from arch/arm/boot/compressed/decompress.c, all the arch_decomp_wdog() definition at platform level is unneeded. Remmove it. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Acked-by: Nicolas Pitre <nico@linaro.org> Acked-by: Jason Cooper <jason@lakedaemon.net>
* | ARM: delete struct sys_timerStephen Warren2012-12-242-8/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now that the only field in struct sys_timer is .init, delete the struct, and replace the machine descriptor .timer field with the initialization function itself. This will enable moving timer drivers into drivers/clocksource without having to place a public prototype of each struct sys_timer object into include/linux; the intent is to create a single of_clocksource_init() function that determines which timer driver to initialize by scanning the device dtree, much like the proposed irqchip_init() at: http://www.spinics.net/lists/arm-kernel/msg203686.html Includes mach-omap2 fixes from Igor Grinberg. Tested-by: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: Stephen Warren <swarren@nvidia.com>
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