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2018-08-15Merge tag 'kconfig-v4.19-2' of ↵Linus Torvalds1-28/+0
git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild Pull Kconfig consolidation from Masahiro Yamada: "Consolidation of Kconfig files by Christoph Hellwig. Move the source statements of arch-independent Kconfig files instead of duplicating the includes in every arch/$(SRCARCH)/Kconfig" * tag 'kconfig-v4.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: kconfig: add a Memory Management options" menu kconfig: move the "Executable file formats" menu to fs/Kconfig.binfmt kconfig: use a menu in arch/Kconfig to reduce clutter kconfig: include kernel/Kconfig.preempt from init/Kconfig Kconfig: consolidate the "Kernel hacking" menu kconfig: include common Kconfig files from top-level Kconfig kconfig: remove duplicate SWAP symbol defintions um: create a proper drivers Kconfig um: cleanup Kconfig files um: stop abusing KBUILD_KCONFIG
2018-08-02kconfig: include kernel/Kconfig.preempt from init/KconfigChristoph Hellwig1-2/+0
Almost all architectures include it. Add a ARCH_NO_PREEMPT symbol to disable preempt support for alpha, hexagon, non-coldfire m68k and user mode Linux. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-08-02Kconfig: consolidate the "Kernel hacking" menuChristoph Hellwig1-2/+0
Move the source of lib/Kconfig.debug and arch/$(ARCH)/Kconfig.debug to the top-level Kconfig. For two architectures that means moving their arch-specific symbols in that menu into a new arch Kconfig.debug file, and for a few more creating a dummy file so that we can include it unconditionally. Also move the actual 'Kernel hacking' menu to lib/Kconfig.debug, where it belongs. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-08-02kconfig: include common Kconfig files from top-level KconfigChristoph Hellwig1-24/+0
Instead of duplicating the source statements in every architecture just do it once in the toplevel Kconfig file. Note that with this the inclusion of arch/$(SRCARCH/Kconfig moves out of the top-level Kconfig into arch/Kconfig so that don't violate ordering constraits while keeping a sensible menu structure. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-07-30MIPS: Loongson: Set Loongson32 to MIPS32R1谢致邦 (XIE Zhibang)1-3/+5
LS232 (Loonson 2-issue 32-bit, also called GS232 (Godson 2-issue 32-bit)) is the CPU core (microarchitecture) of Loongson 1A/1B/1C. According to "LS232 用户手册 (LS232 User Manual)", LS232 implements the MIPS32 Release 1 instruction set, and part of the MIPS32 Release 2 instruction set. In the manual, LS232 implements all of the MIPS32R2 instruction set except the FPU instructions, and LS232 also implements 5 FPU instructions of the MIPS32R2 instruction set: CEIL.L.fmt, CVT.L.fmt, FLOOR.L.fmt, TRUNC.L.fmt, and ROUND.L.fmt. But a bug of the DI instruction has been found during tests, the DI instruction can not disable interrupts in arch_local_irq_disable() with CONFIG_PREEMPT_NONE=y and CFLAGS='-mno-branch-likely' in some cases. [paul.burton@mips.com: - Remove the _MIPS_ISA redefinition to match the change made for the generic MIPSr1 CPUs by commit 344ebf09949c ("MIPS: Always use -march=<arch>, not -<arch> shortcuts").] Signed-off-by: 谢致邦 (XIE Zhibang) <Yeking@Red54.com> Signed-off-by: Paul Burton <paul.burton@mips.com> Patchwork: https://patchwork.linux-mips.org/patch/16155/ Cc: linux-mips@linux-mips.org Cc: ralf@linux-mips.org
2018-07-30MIPS: generic: Select MIPS_AUTO_PFN_OFFSETPaul Burton1-0/+1
Enable CONFIG_MIPS_AUTO_PFN_OFFSET for the generic platform, allowing it to avoid wasted book-keeping for pages with addresses lower than the physical base address of memory. This has a minimal impact on kernel text size, with 64r6el_defconfig gaining 0.1% in size as reported by bloat-o-meter: add/remove: 4/1 grow/shrink: 345/13 up/down: 9017/-392 (8625) Function old new delta pcpu_setup_first_chunk 1444 1780 +336 pcpu_alloc_first_chunk 864 1136 +272 start_kernel 1064 1288 +224 initcall_blacklist 224 372 +148 try_fill_recv 2088 2184 +96 ... Total: Before=8457273, After=8465898, chg +0.10% The gain for systems with large offsets to physical memory & the ability to continue using generic kernels on such systems seems well worth this small cost. Signed-off-by: Paul Burton <paul.burton@mips.com> Suggested-by: Vladimir Kondratiev <vladimir.kondratiev@intel.com> Patchwork: https://patchwork.linux-mips.org/patch/20049/ Cc: James Hogan <jhogan@kernel.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: linux-mips@linux-mips.org
2018-07-30MIPS: Allow auto-dection of ARCH_PFN_OFFSET & PHYS_OFFSETPaul Burton1-0/+3
On systems where physical memory begins at a non-zero address, defining PHYS_OFFSET (which influences ARCH_PFN_OFFSET) can save us time & memory by avoiding book-keeping for pages from address zero to the start of memory. Some MIPS platforms already make use of this, but with the definition of PHYS_OFFSET being compile-time constant it hasn't been possible to enable this optimization for a kernel which may run on systems with varying physical memory base addresses. Introduce a new Kconfig option CONFIG_MIPS_AUTO_PFN_OFFSET which, when enabled, makes ARCH_PFN_OFFSET a variable & detects it from the boot memory map (which for example may have been populated from DT). The relationship with PHYS_OFFSET is reversed, with PHYS_OFFSET now being based on ARCH_PFN_OFFSET. This is because ARCH_PFN_OFFSET is used far more often, so avoiding the need for runtime calculation gives us a smaller impact on kernel text size (0.1% rather than 0.15% for 64r6el_defconfig). Signed-off-by: Paul Burton <paul.burton@mips.com> Suggested-by: Vladimir Kondratiev <vladimir.kondratiev@intel.com> Patchwork: https://patchwork.linux-mips.org/patch/20048/ Cc: James Hogan <jhogan@kernel.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: linux-mips@linux-mips.org
2018-07-24MIPS: ath79: select the PINCTRL subsystemJohn Crispin1-0/+1
The pinmux on QCA SoCs is controlled by a single register. The "pinctrl-single" driver can be used but requires the target to select PINCTRL. Signed-off-by: John Crispin <john@phrozen.org> Signed-off-by: Paul Burton <paul.burton@mips.com> Patchwork: https://patchwork.linux-mips.org/patch/19909/ Cc: James Hogan <jhogan@kernel.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: linux-mips@linux-mips.org
2018-07-24MIPS: Octeon: Select HAS_RAPIDIOAlexander Sverdlin1-0/+1
All Octeons starting with Octeon II have RAPIDIO controller which can function even with PCI disabled. Signed-off-by: Alexander Sverdlin <alexander.sverdlin@nokia.com> Acked-by: Alexandre Bounine <alex.bou9@gmail.com> Signed-off-by: Paul Burton <paul.burton@mips.com> Patchwork: https://patchwork.linux-mips.org/patch/19988/ Cc: linux-mips@linux-mips.org Cc: Ralf Baechle <ralf@linux-mips.org> Cc: James Hogan <jhogan@kernel.org> Cc: Matt Porter <mporter@kernel.crashing.org>
2018-07-24MIPS: Introduce HAS_RAPIDIO Kconfig optionAlexander Sverdlin1-2/+5
Introduce the same option as PPC and ARM already have because RAPIDIO can function in the absence of PCI. Signed-off-by: Alexander Sverdlin <alexander.sverdlin@nokia.com> Acked-by: Alexandre Bounine <alex.bou9@gmail.com> Signed-off-by: Paul Burton <paul.burton@mips.com> Patchwork: https://patchwork.linux-mips.org/patch/19987/ Cc: linux-mips@linux-mips.org Cc: Ralf Baechle <ralf@linux-mips.org> Cc: James Hogan <jhogan@kernel.org> Cc: Matt Porter <mporter@kernel.crashing.org>
2018-06-24MIPS: Malta: Use PIIX4 poweroff driver to power downPaul Burton1-6/+0
Remove the platform code used to power down the system, instead relying upon the new PIIX4 poweroff driver. This reduces the amount of platform code required for the Malta board in preparation for allowing it to be part of a more generic kernel. Signed-off-by: Paul Burton <paul.burton@mips.com> Patchwork: https://patchwork.linux-mips.org/patch/14282/
2018-06-24MIPS: remove the old dma-default implementationChristoph Hellwig1-4/+1
Now unused. Signed-off-by: Christoph Hellwig <hch@lst.de> Patchwork: https://patchwork.linux-mips.org/patch/19551/ Signed-off-by: Paul Burton <paul.burton@mips.com> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: David Daney <david.daney@cavium.com> Cc: Kevin Cernekee <cernekee@gmail.com> Cc: Jiaxun Yang <jiaxun.yang@flygoat.com> Cc: Tom Bogendoerfer <tsbogend@alpha.franken.de> Cc: Huacai Chen <chenhc@lemote.com> Cc: iommu@lists.linux-foundation.org Cc: linux-mips@linux-mips.org
2018-06-24MIPS: bmips: use generic dma noncoherent opsChristoph Hellwig1-1/+2
Provide phys_to_dma/dma_to_phys helpers, and the special arch_sync_dma_for_cpu_all hook, everything else is generic Signed-off-by: Christoph Hellwig <hch@lst.de> Patchwork: https://patchwork.linux-mips.org/patch/19550/ Signed-off-by: Paul Burton <paul.burton@mips.com> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: David Daney <david.daney@cavium.com> Cc: Kevin Cernekee <cernekee@gmail.com> Cc: Jiaxun Yang <jiaxun.yang@flygoat.com> Cc: Tom Bogendoerfer <tsbogend@alpha.franken.de> Cc: Huacai Chen <chenhc@lemote.com> Cc: iommu@lists.linux-foundation.org Cc: linux-mips@linux-mips.org
2018-06-24MIPS: ath25: use generic dma noncoherent opsChristoph Hellwig1-1/+0
Provide phys_to_dma/dma_to_phys helpers only if PCI support is enabled, everything else is generic. Signed-off-by: Christoph Hellwig <hch@lst.de> Patchwork: https://patchwork.linux-mips.org/patch/19547/ Signed-off-by: Paul Burton <paul.burton@mips.com> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: David Daney <david.daney@cavium.com> Cc: Kevin Cernekee <cernekee@gmail.com> Cc: Jiaxun Yang <jiaxun.yang@flygoat.com> Cc: Tom Bogendoerfer <tsbogend@alpha.franken.de> Cc: Huacai Chen <chenhc@lemote.com> Cc: iommu@lists.linux-foundation.org Cc: linux-mips@linux-mips.org
2018-06-24MIPS: IP32: use generic dma noncoherent opsChristoph Hellwig1-1/+1
Provide phys_to_dma/dma_to_phys helpers, everything else is generic. Signed-off-by: Christoph Hellwig <hch@lst.de> Patchwork: https://patchwork.linux-mips.org/patch/19546/ Signed-off-by: Paul Burton <paul.burton@mips.com> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: David Daney <david.daney@cavium.com> Cc: Kevin Cernekee <cernekee@gmail.com> Cc: Jiaxun Yang <jiaxun.yang@flygoat.com> Cc: Tom Bogendoerfer <tsbogend@alpha.franken.de> Cc: Huacai Chen <chenhc@lemote.com> Cc: iommu@lists.linux-foundation.org Cc: linux-mips@linux-mips.org
2018-06-24MIPS: loongson64: use generic dma noncoherent opsChristoph Hellwig1-0/+1
Provide phys_to_dma/dma_to_phys helpers, everything else is generic. Signed-off-by: Christoph Hellwig <hch@lst.de> Patchwork: https://patchwork.linux-mips.org/patch/19545/ Signed-off-by: Paul Burton <paul.burton@mips.com> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: David Daney <david.daney@cavium.com> Cc: Kevin Cernekee <cernekee@gmail.com> Cc: Jiaxun Yang <jiaxun.yang@flygoat.com> Cc: Tom Bogendoerfer <tsbogend@alpha.franken.de> Cc: Huacai Chen <chenhc@lemote.com> Cc: iommu@lists.linux-foundation.org Cc: linux-mips@linux-mips.org
2018-06-24MIPS: use generic dma noncoherent ops for simple noncoherent platformsChristoph Hellwig1-19/+5
Convert everything not overriding dma-coherence.h to the generic noncoherent ops. The new dma-noncoherent.c file duplicates a lot of the code in dma-default.c, but that file will be gone by the end of this series. Signed-off-by: Christoph Hellwig <hch@lst.de> Patchwork: https://patchwork.linux-mips.org/patch/19544/ Signed-off-by: Paul Burton <paul.burton@mips.com> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: David Daney <david.daney@cavium.com> Cc: Kevin Cernekee <cernekee@gmail.com> Cc: Jiaxun Yang <jiaxun.yang@flygoat.com> Cc: Tom Bogendoerfer <tsbogend@alpha.franken.de> Cc: Huacai Chen <chenhc@lemote.com> Cc: iommu@lists.linux-foundation.org Cc: linux-mips@linux-mips.org
2018-06-24MIPS: IP27: use dma_direct_opsChristoph Hellwig1-1/+1
IP27 is coherent and has a reasonably direct mapping, just with a little per-bus offset added into the dma address. Signed-off-by: Christoph Hellwig <hch@lst.de> Patchwork: https://patchwork.linux-mips.org/patch/19542/ Signed-off-by: Paul Burton <paul.burton@mips.com> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: David Daney <david.daney@cavium.com> Cc: Kevin Cernekee <cernekee@gmail.com> Cc: Jiaxun Yang <jiaxun.yang@flygoat.com> Cc: Tom Bogendoerfer <tsbogend@alpha.franken.de> Cc: Huacai Chen <chenhc@lemote.com> Cc: iommu@lists.linux-foundation.org Cc: linux-mips@linux-mips.org
2018-06-24MIPS: use dma_direct_ops for coherent I/OChristoph Hellwig1-14/+1
Switch the simple cache coherent architectures that don't require any DMA address translation to dma_direct_ops. We'll soon use at least parts of the direct DMA ops implementation for all platforms, so select the symbol globally. Signed-off-by: Christoph Hellwig <hch@lst.de> Patchwork: https://patchwork.linux-mips.org/patch/19540/ Signed-off-by: Paul Burton <paul.burton@mips.com> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: David Daney <david.daney@cavium.com> Cc: Kevin Cernekee <cernekee@gmail.com> Cc: Jiaxun Yang <jiaxun.yang@flygoat.com> Cc: Tom Bogendoerfer <tsbogend@alpha.franken.de> Cc: Huacai Chen <chenhc@lemote.com> Cc: iommu@lists.linux-foundation.org Cc: linux-mips@linux-mips.org
2018-06-24MIPS: loongson: untangle dma implementationsChristoph Hellwig1-1/+1
Only loongson-3 is DMA coherent and uses swiotlb. So move the dma address translations stubs directly to the loongson-3 code, and remove a few Kconfig indirections. Signed-off-by: Christoph Hellwig <hch@lst.de> Patchwork: https://patchwork.linux-mips.org/patch/19539/ Signed-off-by: Paul Burton <paul.burton@mips.com> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: David Daney <david.daney@cavium.com> Cc: Kevin Cernekee <cernekee@gmail.com> Cc: Jiaxun Yang <jiaxun.yang@flygoat.com> Cc: Tom Bogendoerfer <tsbogend@alpha.franken.de> Cc: Huacai Chen <chenhc@lemote.com> Cc: iommu@lists.linux-foundation.org Cc: linux-mips@linux-mips.org
2018-06-24MIPS: make the default mips dma implementation optionalChristoph Hellwig1-0/+40
Octeon and loonson64 already don't use it at all, and we're going to migrate more plaforms away from it. Signed-off-by: Christoph Hellwig <hch@lst.de> Patchwork: https://patchwork.linux-mips.org/patch/19536/ Signed-off-by: Paul Burton <paul.burton@mips.com> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: David Daney <david.daney@cavium.com> Cc: Kevin Cernekee <cernekee@gmail.com> Cc: Jiaxun Yang <jiaxun.yang@flygoat.com> Cc: Tom Bogendoerfer <tsbogend@alpha.franken.de> Cc: Huacai Chen <chenhc@lemote.com> Cc: iommu@lists.linux-foundation.org Cc: linux-mips@linux-mips.org
2018-06-24MIPS: remove CONFIG_DMA_COHERENTChristoph Hellwig1-16/+0
We can just check for !CONFIG_DMA_NONCOHERENT instead and simplify things a lot. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Paul Burton <paul.burton@mips.com> Patchwork: https://patchwork.linux-mips.org/patch/19530/ Signed-off-by: Paul Burton <paul.burton@mips.com> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: David Daney <david.daney@cavium.com> Cc: Kevin Cernekee <cernekee@gmail.com> Cc: Jiaxun Yang <jiaxun.yang@flygoat.com> Cc: Tom Bogendoerfer <tsbogend@alpha.franken.de> Cc: Huacai Chen <chenhc@lemote.com> Cc: iommu@lists.linux-foundation.org Cc: linux-mips@linux-mips.org
2018-06-19MIPS: Add support for restartable sequencesPaul Burton1-0/+1
Implement support for restartable sequences on MIPS, which requires 3 simple things: - Call rseq_handle_notify_resume() on return to userspace if TIF_NOTIFY_RESUME is set. - Call rseq_signal_deliver() to fixup the pre-signal stack frame when a signal is delivered whilst executing a restartable sequence critical section. - Select CONFIG_HAVE_RSEQ. Signed-off-by: Paul Burton <paul.burton@mips.com> Reviewed-by: James Hogan <jhogan@kernel.org> Patchwork: https://patchwork.linux-mips.org/patch/19523/ Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Boqun Feng <boqun.feng@gmail.com> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org
2018-06-15Kbuild: rename HAVE_CC_STACKPROTECTOR config variableMasahiro Yamada1-1/+1
HAVE_CC_STACKPROTECTOR should be selected by architectures with stack canary implementation. It is not about the compiler support. For the consistency with commit 050e9baa9dc9 ("Kbuild: rename CC_STACKPROTECTOR[_STRONG] config variables"), remove 'CC_' from the config symbol. I moved the 'select' lines to keep the alphabetical sorting. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Acked-by: Kees Cook <keescook@chromium.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-06-12Merge tag 'mips_4.18' of ↵Linus Torvalds1-0/+5
git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux Pull MIPS updates from James Hogan: "These are the main MIPS changes for 4.18. Rough overview: - MAINTAINERS: Add Paul Burton as MIPS co-maintainer - Misc: Generic compiler intrinsics, Y2038 improvements, Perf+MT fixes - Platform support: Netgear WNR1000 V3, Microsemi Ocelot integrated switch, Ingenic watchdog cleanups More detailed summary: Maintainers: - Add Paul Burton as MIPS co-maintainer, as I soon won't have access to much MIPS hardware, nor enough time to properly maintain MIPS on my own. Miscellaneous: - Use generic GCC library routines from lib/ - Add notrace to generic ucmpdi2 implementation - Rename compiler intrinsic selects to GENERIC_LIB_* - vmlinuz: Use generic ashldi3 - y2038: Convert update/read_persistent_clock() to *_clock64() - sni: Remove read_persistent_clock() - perf: Fix perf with MT counting other threads - Probe for per-TC perf counters in cpu-probe.c - Use correct VPE ID for VPE tracing Minor cleanups: - Avoid unneeded built-in.a in DTS dirs - sc-debugfs: Re-use kstrtobool_from_user - memset.S: Reinstate delay slot indentation - VPE: Fix spelling "uneeded" -> "Unneeded" Platform support: BCM47xx: - Add support for Netgear WNR1000 V3 - firmware: Support small NVRAM partitions - Use __initdata for LEDs platform data Ingenic: - Watchdog driver & platform code improvements: - Disable clock after stopping counter - Use devm_* functions - Drop module remove function - Move platform reset code to restart handler in driver - JZ4740: Convert watchdog instantiation to DT - JZ4780: Fix watchdog DT node - qi_lb60_defconfig: Enable watchdog driver Microsemi: - Ocelot: Add support for integrated switch - pcb123: Connect phys to ports" * tag 'mips_4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (30 commits) MAINTAINERS: Add Paul Burton as MIPS co-maintainer MIPS: ptrace: Make FPU context layout comments match reality MIPS: memset.S: Reinstate delay slot indentation MIPS: perf: Fix perf with MT counting other threads MIPS: perf: Use correct VPE ID when setting up VPE tracing MIPS: perf: More robustly probe for the presence of per-tc counters MIPS: Probe for MIPS MT perf counters per TC MIPS: mscc: Connect phys to ports on ocelot_pcb123 MIPS: mscc: Add switch to ocelot MIPS: JZ4740: Drop old platform reset code MIPS: qi_lb60: Enable the jz4740-wdt driver MIPS: JZ4780: dts: Fix watchdog node MIPS: JZ4740: dts: Add bindings for the jz4740-wdt driver watchdog: JZ4740: Drop module remove function watchdog: JZ4740: Register a restart handler watchdog: JZ4740: Use devm_* functions watchdog: JZ4740: Disable clock after stopping counter MIPS: VPE: Fix spelling mistake: "uneeded" -> "unneeded" MIPS: Re-use kstrtobool_from_user() MIPS: Convert update_persistent_clock() to update_persistent_clock64() ...
2018-06-04Merge tag 'docs-4.18' of git://git.lwn.net/linuxLinus Torvalds1-1/+1
Pull documentation updates from Jonathan Corbet: "There's been a fair amount of work in the docs tree this time around, including: - Extensive RST conversions and organizational work in the memory-management docs thanks to Mike Rapoport. - An update of Documentation/features from Andrea Parri and a script to keep it updated. - Various LICENSES updates from Thomas, along with a script to check SPDX tags. - Work to fix dangling references to documentation files; this involved a fair number of one-liner comment changes outside of Documentation/ ... and the usual list of documentation improvements, typo fixes, etc" * tag 'docs-4.18' of git://git.lwn.net/linux: (103 commits) Documentation: document hung_task_panic kernel parameter docs/admin-guide/mm: add high level concepts overview docs/vm: move ksm and transhuge from "user" to "internals" section. docs: Use the kerneldoc comments for memalloc_no*() doc: document scope NOFS, NOIO APIs docs: update kernel versions and dates in tables docs/vm: transhuge: split userspace bits to admin-guide/mm/transhuge docs/vm: transhuge: minor updates docs/vm: transhuge: change sections order Documentation: arm: clean up Marvell Berlin family info Documentation: gpio: driver: Fix a typo and some odd grammar docs: ranoops.rst: fix location of ramoops.txt scripts/documentation-file-ref-check: rewrite it in perl with auto-fix mode docs: uio-howto.rst: use a code block to solve a warning mm, THP, doc: Add document for thp_swpout/thp_swpout_fallback w1: w1_io.c: fix a kernel-doc warning Documentation/process/posting: wrap text at 80 cols docs: admin-guide: add cgroup-v2 documentation Revert "Documentation/features/vm: Remove arch support status file for 'pte_special'" Documentation: refcount-vs-atomic: Update reference to LKMM doc. ...
2018-05-09swiotlb: move the SWIOTLB config symbol to lib/KconfigChristoph Hellwig1-0/+2
This way we have one central definition of it, and user can select it as needed. The new option is not user visible, which is the behavior it had in most architectures, with a few notable exceptions: - On x86_64 and mips/loongson3 it used to be user selectable, but defaulted to y. It now is unconditional, which seems like the right thing for 64-bit architectures without guaranteed availablity of IOMMUs. - on powerpc the symbol is user selectable and defaults to n, but many boards select it. This change assumes no working setup required a manual selection, but if that turned out to be wrong we'll have to add another select statement or two for the respective boards. Signed-off-by: Christoph Hellwig <hch@lst.de>
2018-05-09arch: define the ARCH_DMA_ADDR_T_64BIT config symbol in lib/KconfigChristoph Hellwig1-3/+0
Define this symbol if the architecture either uses 64-bit pointers or the PHYS_ADDR_T_64BIT is set. This covers 95% of the old arch magic. We only need an additional select for Xen on ARM (why anyway?), and we now always set ARCH_DMA_ADDR_T_64BIT on mips boards with 64-bit physical addressing instead of only doing it when highmem is set. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: James Hogan <jhogan@kernel.org>
2018-05-09arch: remove the ARCH_PHYS_ADDR_T_64BIT config symbolChristoph Hellwig1-9/+6
Instead select the PHYS_ADDR_T_64BIT for 32-bit architectures that need a 64-bit phys_addr_t type directly. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: James Hogan <jhogan@kernel.org>
2018-05-09dma-mapping: move the NEED_DMA_MAP_STATE config symbol to lib/KconfigChristoph Hellwig1-3/+0
This way we have one central definition of it, and user can select it as needed. Note that we now also always select it when CONFIG_DMA_API_DEBUG is select, which fixes some incorrect checks in a few network drivers. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Anshuman Khandual <khandual@linux.vnet.ibm.com>
2018-05-08dma-debug: remove CONFIG_HAVE_DMA_API_DEBUGChristoph Hellwig1-1/+0
There is no arch specific code required for dma-debug, so there is no need to opt into the support either. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Robin Murphy <robin.murphy@arm.com>
2018-04-23MIPS: Use generic GCC library routines from lib/Antony Pavlov1-0/+5
The commit b35cd9884fa5 ("lib: Add shared copies of some GCC library routines") makes it possible to share generic GCC library routines by several architectures. This commit removes several generic GCC library routines from arch/mips/lib/ in favour of similar routines from lib/. Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com> [Matt Redfearn] Use GENERIC_LIB_* named Kconfig entries Signed-off-by: Matt Redfearn <matt.redfearn@mips.com> Cc: Palmer Dabbelt <palmer@sifive.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/19051/ Signed-off-by: James Hogan <jhogan@kernel.org>
2018-04-16Merge branch 'mm-rst' into docs-nextJonathan Corbet1-1/+1
Mike Rapoport says: These patches convert files in Documentation/vm to ReST format, add an initial index and link it to the top level documentation. There are no contents changes in the documentation, except few spelling fixes. The relatively large diffstat stems from the indentation and paragraph wrapping changes. I've tried to keep the formatting as consistent as possible, but I could miss some places that needed markup and add some markup where it was not necessary. [jc: significant conflicts in vm/hmm.rst]
2018-04-16docs/vm: rename documentation files to .rstMike Rapoport1-1/+1
Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2018-04-10Merge tag 'mips_4.17' of ↵Linus Torvalds1-2/+5
git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/mips Pull MIPS updates from James Hogan: "These are the main MIPS changes for 4.17. Rough overview: (1) generic platform: Add support for Microsemi Ocelot SoCs (2) crypto: Add CRC32 and CRC32C HW acceleration module (3) Various cleanups and misc improvements More detailed summary: Miscellaneous: - hang more efficiently on halt/powerdown/restart - pm-cps: Block system suspend when a JTAG probe is present - expand make help text for generic defconfigs - refactor handling of legacy defconfigs - determine the entry point from the ELF file header to fix microMIPS for certain toolchains - introduce isa-rev.h for MIPS_ISA_REV and use to simplify other code Minor cleanups: - DTS: boston/ci20: Unit name cleanups and correction - kdump: Make the default for PHYSICAL_START always 64-bit - constify gpio_led in Alchemy, AR7, and TXX9 - silence a couple of W=1 warnings - remove duplicate includes Platform support: Generic platform: - add support for Microsemi Ocelot - dt-bindings: Add vendor prefix for Microsemi Corporation - dt-bindings: Add bindings for Microsemi SoCs - add ocelot SoC & PCB123 board DTS files - MAINTAINERS: Add entry for Microsemi MIPS SoCs - enable crc32-mips on r6 configs ath79: - fix AR724X_PLL_REG_PCIE_CONFIG offset BCM47xx: - firmware: Use mac_pton() for MAC address parsing - add Luxul XAP1500/XWR1750 WiFi LEDs - use standard reset button for Luxul XWR-1750 BMIPS: - enable CONFIG_BRCMSTB_PM in bmips_stb_defconfig for build coverage - add STB PM, wake-up timer, watchdog DT nodes Octeon: - drop '.' after newlines in printk calls ralink: - pci-mt7621: Enable PCIe on MT7688" * tag 'mips_4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/mips: (37 commits) MIPS: BCM47XX: Use standard reset button for Luxul XWR-1750 MIPS: BCM47XX: Add Luxul XAP1500/XWR1750 WiFi LEDs MIPS: Make the default for PHYSICAL_START always 64-bit MIPS: Use the entry point from the ELF file header MAINTAINERS: Add entry for Microsemi MIPS SoCs MIPS: generic: Add support for Microsemi Ocelot MIPS: mscc: Add ocelot PCB123 device tree MIPS: mscc: Add ocelot dtsi dt-bindings: mips: Add bindings for Microsemi SoCs dt-bindings: Add vendor prefix for Microsemi Corporation MIPS: ath79: Fix AR724X_PLL_REG_PCIE_CONFIG offset MIPS: pci-mt7620: Enable PCIe on MT7688 MIPS: pm-cps: Block system suspend when a JTAG probe is present MIPS: VDSO: Replace __mips_isa_rev with MIPS_ISA_REV MIPS: BPF: Replace __mips_isa_rev with MIPS_ISA_REV MIPS: cpu-features.h: Replace __mips_isa_rev with MIPS_ISA_REV MIPS: Introduce isa-rev.h to define MIPS_ISA_REV MIPS: Hang more efficiently on halt/powerdown/restart FIRMWARE: bcm47xx_nvram: Replace mac address parsing MIPS: BMIPS: Add Broadcom STB watchdog nodes ...
2018-03-28MIPS: Make the default for PHYSICAL_START always 64-bitMaciej W. Rozycki1-2/+1
Make the default for PHYSICAL_START always 64-bit, ensuring that a correct sign-extended value is used if a 32-bit image is loaded by a 64-bit system, and matching how the load address is set in platform Makefile fragments (arch/mips/*/Platform) in the absence of the PHYSICAL_START configuration option. Of course PHYSICAL_START itself is a misnomer as the load address is virtual rather than physical (or otherwise sign-extension would not apply). Fixes: 7aa1c8f47e7e ("MIPS: kdump: Add support") Signed-off-by: Maciej W. Rozycki <macro@mips.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Maxim Uvarov <muvarov@gmail.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/18939/ Signed-off-by: James Hogan <jhogan@kernel.org>
2018-03-26usb: host: Remove the deprecated ATH79 USB host config optionsAlban Bedel1-0/+1
The options USB_EHCI_ATH79 and USB_OHCI_ATH79 only enable the generic EHCI and OHCI platform drivers, and have been marked as deprecated since 2012. These can be safely removed if we make sure that USB_EHCI_ROOT_HUB_TT still get enabled for the EHCI driver. This is now done be selecting this option when the EHCI platform driver is enabled on the ATH79 platform. Signed-off-by: Alban Bedel <albeu@free.fr> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-02-19MIPS: crypto: Add crc32 and crc32c hw accelerated moduleMarcin Nowakowski1-0/+4
This module registers crc32 and crc32c algorithms that use the optional CRC32[bhwd] and CRC32C[bhwd] instructions in MIPSr6 cores. Signed-off-by: Marcin Nowakowski <marcin.nowakowski@mips.com> Signed-off-by: James Hogan <jhogan@kernel.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: linux-mips@linux-mips.org Cc: linux-crypto@vger.kernel.org Acked-by: Herbert Xu <herbert@gondor.apana.org.au> Patchwork: https://patchwork.linux-mips.org/patch/18601/ [jhogan@kernel.org: Add CRYPTO_ALG_OPTIONAL_KEY flag on Eric Biggers' suggestion, due to commit a208fa8f3303 ("crypto: hash - annotate algorithms taking optional key") in v4.16-rc1]
2018-02-09Merge tag 'kbuild-v4.16-2' of ↵Linus Torvalds1-1/+0
git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild Pull more Kbuild updates from Masahiro Yamada: "Makefile changes: - enable unused-variable warning that was wrongly disabled for clang Kconfig changes: - warn about blank 'help' and fix existing instances - fix 'choice' behavior to not write out invisible symbols - fix misc weirdness Coccinell changes: - fix false positive of free after managed memory alloc detection - improve performance of NULL dereference detection" * tag 'kbuild-v4.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (21 commits) kconfig: remove const qualifier from sym_expand_string_value() kconfig: add xrealloc() helper kconfig: send error messages to stderr kconfig: echo stdin to stdout if either is redirected kconfig: remove check_stdin() kconfig: remove 'config*' pattern from .gitignnore kconfig: show '?' prompt even if no help text is available kconfig: do not write choice values when their dependency becomes n coccinelle: deref_null: avoid useless computation coccinelle: devm_free: reduce false positives kbuild: clang: disable unused variable warnings only when constant kconfig: Warn if help text is blank nios2: kconfig: Remove blank help text arm: vt8500: kconfig: Remove blank help text MIPS: kconfig: Remove blank help text MIPS: BCM63XX: kconfig: Remove blank help text lib/Kconfig.debug: Remove blank help text Staging: rtl8192e: kconfig: Remove blank help text Staging: rtl8192u: kconfig: Remove blank help text mmc: kconfig: Remove blank help text ...
2018-02-07Merge tag 'mips_4.16' of ↵Linus Torvalds1-8/+15
git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/mips Pull MIPS updates from James Hogan: "These are the main MIPS changes for 4.16. Rough overview: (1) Basic support for the Ingenic JZ4770 based GCW Zero open-source handheld video game console (2) Support for the Ranchu board (used by Android emulator) (3) Various cleanups and misc improvements More detailed summary: Fixes: - Fix generic platform's USB_*HCI_BIG_ENDIAN selects (4.9) - Fix vmlinuz default build when ZBOOT selected - Fix clean up of vmlinuz targets - Fix command line duplication (in preparation for Ingenic JZ4770) Miscellaneous: - Allow Processor ID reads to be to be optimised away by the compiler (improves performance when running in guest) - Push ARCH_MIGHT_HAVE_PC_SERIO/PARPORT down to platform level to disable on generic platform with Ranchu board support - Add helpers for assembler macro instructions for older assemblers - Use assembler macro instructions to support VZ, XPA & MSA operations on older assemblers, removing C wrapper duplication - Various improvements to VZ & XPA assembly wrappers - Add drivers/platform/mips/ to MIPS MAINTAINERS entry Minor cleanups: - Misc FPU emulation cleanups (removal of unnecessary include, moving macros to common header, checkpatch and sparse fixes) - Remove duplicate assignment of core in play_dead() - Remove duplication in watchpoint handling - Remove mips_dma_mapping_error() stub - Use NULL instead of 0 in prepare_ftrace_return() - Use proper kernel-doc Return keyword for __compute_return_epc_for_insn() - Remove duplicate semicolon in csum_fold() Platform support: Broadcom: - Enable ZBOOT on BCM47xx Generic platform: - Add Ranchu board support, used by Android emulator - Fix machine compatible string matching for Ranchu - Support GIC in EIC mode Ingenic platforms: - Add DT, defconfig and other support for JZ4770 SoC and GCW Zero - Support dynamnic machine types (i.e. JZ4740 / JZ4770 / JZ4780) - Add Ingenic JZ4770 CGU clocks - General Ingenic clk changes to prepare for JZ4770 SoC support - Use common command line handling code - Add DT vendor prefix to GCW (Game Consoles Worldwide) Loongson: - Add MAINTAINERS entry for Loongson2 and Loongson3 platforms - Drop 32-bit support for Loongson 2E/2F devices - Fix build failures due to multiple use of 'MEM_RESERVED'" * tag 'mips_4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/mips: (53 commits) MIPS: Malta: Sanitize mouse and keyboard configuration. MIPS: Update defconfigs after previous patch. MIPS: Push ARCH_MIGHT_HAVE_PC_SERIO down to platform level MIPS: Push ARCH_MIGHT_HAVE_PC_PARPORT down to platform level MIPS: SMP-CPS: Remove duplicate assignment of core in play_dead MIPS: Generic: Support GIC in EIC mode MIPS: generic: Fix Makefile alignment MIPS: generic: Fix ranchu_of_match[] termination MIPS: generic: Fix machine compatible matching MIPS: Loongson fix name confict - MEM_RESERVED MIPS: bcm47xx: enable ZBOOT support MIPS: Fix trailing semicolon MIPS: Watch: Avoid duplication of bits in mips_read_watch_registers MIPS: Watch: Avoid duplication of bits in mips_install_watch_registers. MIPS: MSA: Update helpers to use new asm macros MIPS: XPA: Standardise readx/writex accessors MIPS: XPA: Allow use of $0 (zero) to MTHC0 MIPS: XPA: Use XPA instructions in assembly MIPS: VZ: Pass GC0 register names in $n format MIPS: VZ: Update helpers to use new asm macros ...
2018-02-06MIPS: Push ARCH_MIGHT_HAVE_PC_SERIO down to platform levelRalf Baechle1-1/+5
Maybe once upon a time the select of ARCH_MIGHT_HAVE_PC_SERIO used to make sense. These days MIPS platforms long have done away with i8042 or PS/2 style keyboard and mouse ports and embedded systems probably never had them anyway so push the select down to the level of individual platforms. Fixes: f2d0b0d5c171 ("MIPS: ranchu: Add Ranchu as a new generic-based board") Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: James Hogan <jhogan@kernel.org>
2018-02-06MIPS: Push ARCH_MIGHT_HAVE_PC_PARPORT down to platform levelRalf Baechle1-1/+3
Maybe once upon a time the select of ARCH_MIGHT_HAVE_PC_PARPORT used to make sense. These days MIPS platforms long have done away with parallel ports and embedded systems probably never had one anyway so push the select down to the level of individual platforms. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: James Hogan <jhogan@kernel.org>
2018-02-02MIPS: kconfig: Remove blank help textUlf Magnusson1-1/+0
Blank help texts are probably either a typo, a Kconfig misunderstanding, or some kind of half-committing to adding a help text (in which case a TODO comment would be clearer, if the help text really can't be added right away). Best to remove them, IMO. Signed-off-by: Ulf Magnusson <ulfalizer@gmail.com> Acked-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-01-31Merge tag 'dma-mapping-4.16' of git://git.infradead.org/users/hch/dma-mappingLinus Torvalds1-0/+2
Pull dma mapping updates from Christoph Hellwig: "Except for a runtime warning fix from Christian this is all about consolidation of the generic no-IOMMU code, a well as the glue code for swiotlb. All the code is based on the x86 implementation with hooks to allow all architectures that aren't cache coherent to use it. The x86 conversion itself has been deferred because the x86 maintainers were a little busy in the last months" * tag 'dma-mapping-4.16' of git://git.infradead.org/users/hch/dma-mapping: (57 commits) MAINTAINERS: add the iommu list for swiotlb and xen-swiotlb arm64: use swiotlb_alloc and swiotlb_free arm64: replace ZONE_DMA with ZONE_DMA32 mips: use swiotlb_{alloc,free} mips/netlogic: remove swiotlb support tile: use generic swiotlb_ops tile: replace ZONE_DMA with ZONE_DMA32 unicore32: use generic swiotlb_ops ia64: remove an ifdef around the content of pci-dma.c ia64: clean up swiotlb support ia64: use generic swiotlb_ops ia64: replace ZONE_DMA with ZONE_DMA32 swiotlb: remove various exports swiotlb: refactor coherent buffer allocation swiotlb: refactor coherent buffer freeing swiotlb: wire up ->dma_supported in swiotlb_dma_ops swiotlb: add common swiotlb_map_ops swiotlb: rename swiotlb_free to swiotlb_exit x86: rename swiotlb_dma_ops powerpc: rename swiotlb_dma_ops ...
2018-01-24MIPS: bcm47xx: enable ZBOOT supportAaro Koskinen1-0/+1
Enable ZBOOT support. The WRT54GL router's bootloader limits kernel size to 3 MB with the normal load address, which is a bit challenging vmlinux size with modern Linux. A compressed kernel allows booting much bigger kernels. Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Hauke Mehrtens <hauke@hauke-m.de> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/18492/ Signed-off-by: James Hogan <jhogan@kernel.org>
2018-01-18MIPS: Fix typo BIG_ENDIAN to CPU_BIG_ENDIANCorentin Labbe1-6/+6
MIPS_GENERIC selects some options conditional on BIG_ENDIAN which does not exist. Replace BIG_ENDIAN with CPU_BIG_ENDIAN which is the correct kconfig name. Note that BMIPS_GENERIC does the same which confirms that this patch is needed. Fixes: eed0eabd12ef0 ("MIPS: generic: Introduce generic DT-based board support") Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com> Reviewed-by: James Hogan <jhogan@kernel.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: linux-mips@linux-mips.org Cc: <stable@vger.kernel.org> # 4.9+ Patchwork: https://patchwork.linux-mips.org/patch/18495/ [jhogan@kernel.org: Clean up commit message] Signed-off-by: James Hogan <jhogan@kernel.org>
2018-01-18MIPS: Fix undefined reference to physical_memsizeJames Hogan1-1/+10
Since commit d41e6858ba58 ("MIPS: Kconfig: Set default MIPS system type as generic") switched the default platform to the "generic" platform, allmodconfig has been failing with the following linker error (among other errors): arch/mips/kernel/vpe-mt.o In function `vpe_run': (.text+0x59c): undefined reference to `physical_memsize' The Lantiq platform already worked around the same issue in commit 9050d50e2244 ("MIPS: lantiq: Set physical_memsize") by declaring physical_memsize with the initial value of 0 (on the assumption that the actual memory size will be hard-coded in the loaded VPE firmware), and the Malta platform already provided physical_memsize. Since all other platforms will fail to link with the VPE loader enabled, only allow Lantiq and Malta platforms to enable it, by way of a SYS_SUPPORTS_VPE_LOADER which is selected by those two platforms and which MIPS_VPE_LOADER depends on. SYS_SUPPORTS_MULTITHREADING is now a dependency of SYS_SUPPORTS_VPE_LOADER so that Kconfig emits a warning if SYS_SUPPORTS_VPE_LOADER is selected without SYS_SUPPORTS_MULTITHREADING. Fixes: d41e6858ba58 ("MIPS: Kconfig: Set default MIPS system type as generic") Signed-off-by: James Hogan <jhogan@kernel.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: John Crispin <john@phrozen.org> Cc: Hauke Mehrtens <hauke@hauke-m.de> Cc: Paul Burton <paul.burton@mips.com> Cc: Matt Redfearn <matt.redfearn@imgtec.com> Cc: Guenter Roeck <linux@roeck-us.net> Cc: linux-mips@linux-mips.org Tested-by: Guenter Roeck <linux@roeck-us.net> Patchwork: https://patchwork.linux-mips.org/patch/18453/
2018-01-10MIPS: BCM47XX Avoid compile error with MIPS allnoconfigMatt Redfearn1-0/+1
Currently MIPS allnoconfig with CONFIG_BCM47XX=y fails to compile due to neither BCM47XX_BCMA nor BCM47XX_SSB being selected. This leads the enumeration in arch/mips/include/asm/mach-bcm47xx/bcm47xx.h to be empty, and compilation fails: In file included from arch/mips/bcm47xx/irq.c:32:0: ./arch/mips/include/asm/mach-bcm47xx/bcm47xx.h:34:1: error: expected identifier before '}' token }; ^ make[2]: *** [scripts/Makefile.build:314: arch/mips/bcm47xx/irq.o] Error 1 Fix this by ensuring that BCM47XX_SSB is selected if BCM47XX_BCMA is not. This allows us to select either system or both, but not neither. Signed-off-by: Matt Redfearn <matt.redfearn@mips.com> Cc: James Hogan <james.hogan@mips.com> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/17703/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2018-01-10dma-mapping: move swiotlb arch helpers to a new headerChristoph Hellwig1-0/+2
phys_to_dma, dma_to_phys and dma_capable are helpers published by architecture code for use of swiotlb and xen-swiotlb only. Drivers are not supposed to use these directly, but use the DMA API instead. Move these to a new asm/dma-direct.h helper, included by a linux/dma-direct.h wrapper that provides the default linear mapping unless the architecture wants to override it. In the MIPS case the existing dma-coherent.h is reused for now as untangling it will take a bit of work. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Robin Murphy <robin.murphy@arm.com>
2017-11-15Merge tag 'mips_4.15' of ↵Linus Torvalds1-27/+15
git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/mips Pull MIPS updates from James Hogan: "These are the main MIPS changes for 4.15. Fixes: - ralink: Fix MT7620 PCI build issues (4.5) - Disable cmpxchg64() and HAVE_VIRT_CPU_ACCOUNTING_GEN for 32-bit SMP (4.1) - Fix MIPS64 FP save/restore on 32-bit kernels (4.0) - ptrace: Pick up ptrace/seccomp changed syscall numbers (3.19) - ralink: Fix MT7628 pinmux (3.19) - BCM47XX: Fix LED inversion on WRT54GSv1 (3.17) - Fix n32 core dumping as o32 since regset support (3.13) - ralink: Drop obsolete USB_ARCH_HAS_HCD select Build system: - Default to "generic" (multiplatform) system type instead of IP22 - Use generic little endian MIPS32 r2 configuration as default defconfig instead of ip22_defconfig FPU emulation: - Fix exception generation for certain R6 FPU instructions SMP: - Allow __cpu_number_map to be larger than NR_CPUS for sparse CPU id spaces Miscellaneous: - Add iomem resource for kernel bss section for kexec/kdump - Atomics: Nudge writes on bit unlock - DT files: Standardise "ok" -> "okay" Minor cleanups: - Define virt_to_pfn() - Make thread_saved_pc static - Simplify 32-bit sign extension in __read_64bit_c0_split() - DMA: Use vma_pages() helper - FPU emulation: Replace unsigned with unsigned int - MM: Removed unused lastpfn - Alchemy: Make clk_ops const - Lasat: Use setup_timer() helper - ralink: Use BIT() in MT7620 PCI driver Platform support: BMIPS: - Enable HARDIRQS_SW_RESEND Broadcom BCM63XX: - Add clkdev lookup support - Update clk driver, UART driver, DTs to handle named refclk from DTs - Split apart various clocks to more closely match hardware - Add ethernet clocks Cavium Octeon: - Remove usage of cvmx_wait() in favour of __delay() ImgTec Pistachio: - DT: Drop deprecated dwmmc num-slots property Ingenic JZ4780: - Add NFS root to Ci20 defconfig - Add watchdog to Ci20 DT & defconfig, and allow building of watchdog driver with this SoC Generic (multiplatform): - Migrate xilfpga (MIPSfpga) platform to the generic platform Lantiq xway: - Fix ASC0/ASC1 clocks" * tag 'mips_4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/mips: (46 commits) MIPS: Add iomem resource for kernel bss section. MIPS: cmpxchg64() and HAVE_VIRT_CPU_ACCOUNTING_GEN don't work for 32-bit SMP MIPS: BMIPS: Enable HARDIRQS_SW_RESEND MIPS: pci: Make use of the BIT() macro inside the mt7620 driver MIPS: pci: Remove KERN_WARN instance inside the mt7620 driver MIPS: pci: Remove duplicate define in mt7620 driver MIPS: ralink: Fix typo in mt7628 pinmux function MIPS: ralink: Fix MT7628 pinmux MIPS: Fix odd fp register warnings with MIPS64r2 watchdog: jz4780: Allow selection of jz4740-wdt driver MIPS/ptrace: Update syscall nr on register changes MIPS/ptrace: Pick up ptrace/seccomp changed syscalls MIPS: Fix an n32 core file generation regset support regression MIPS: Fix MIPS64 FP save/restore on 32-bit kernels MIPS: page.h: Define virt_to_pfn() MIPS: Xilfpga: Switch to using generic defconfigs MIPS: generic: Add support for MIPSfpga MIPS: Set defconfig target to a generic system for 32r2el MIPS: Kconfig: Set default MIPS system type as generic MIPS: DTS: Remove num-slots from Pistachio SoC ...
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