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* drivers/perf: arm_pmu: Avoid leaking pmu->irq_affinity on errorJulien Grall2016-06-031-0/+1
| | | | | | | | | | | | | pmu->irq_affinity will not be freed if an error occurred within arm_pmu_device_probe after of_pmu_irq_cfg has been called. Note that in the case of_pmu_irq_cfg is returning an error, pmu->irq_affinity will not be set, but it should be NULL as pmu was kzalloc'd. Therefore the result kfree(NULL) is benign. Signed-off-by: Julien Grall <julien.grall@arm.com> Acked-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
* drivers/perf: arm_pmu: Defer the setting of __oprofile_cpu_pmuJulien Grall2016-06-031-3/+3
| | | | | | | | | | | | | | | | The global variable __oprofile_cpu_pmu is set before the PMU is fully initialized. If an error occurs before the end of the initialization, the PMU will be freed and the variable will contain an invalid pointer. This will result in a kernel crash when perf will be used. Fix it by moving the setting of __oprofile_cpu_pmu when the PMU is fully initialized (i.e when it is no longer possible to fail). Cc: <stable@vger.kernel.org> Signed-off-by: Julien Grall <julien.grall@arm.com> Acked-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
* drivers/perf: arm_pmu: Fix reference count of a device_node in of_pmu_irq_cfgJulien Grall2016-06-031-4/+1
| | | | | | | | | | | | | | | | | | | | The only function called by of_pmu_irq_cfg that will increment the reference count on dn is of_parse_phandle. Each time we successfully parse a possible CPU from an interrupt-affinity property, we increment the refcount of that CPU node once via of_parse_handle. After validating the CPU is possible, we decrement the refcount once. Subsequently, we decrement the refcount again, either as part of an early break if we don't have a matching SPI, or as part of the end of the loop body. This will lead to decrementing twice the refcounnt. Remove the second pairs of call to of_node_put as nobody is using dn between the first and second call to of_node_put. Signed-off-by: Julien Grall <julien.grall@arm.com> Acked-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
* arm64: report CPU number in bad_modeMark Rutland2016-06-031-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | If we take an exception we don't expect (e.g. SError), we report this in the bad_mode handler with pr_crit. Depending on the configured log level, we may or may not log additional information in functions called subsequently. Notably, the messages in dump_stack (including the CPU number) are printed with KERN_DEFAULT and may not appear. Some exceptions have an IMPLEMENTATION DEFINED ESR_ELx.ISS encoding, and knowing the CPU number is crucial to correctly decode them. To ensure that this is always possible, we should log the CPU number along with the ESR_ELx value, so we are not reliant on subsequent logs or additional printk configuration options. This patch logs the CPU number in bad_mode such that it is possible for a developer to decode these exceptions, provided access to sufficient documentation. Signed-off-by: Mark Rutland <mark.rutland@arm.com> Reported-by: Al Grant <Al.Grant@arm.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Dave Martin <dave.martin@arm.com> Cc: Robin Murphy <robin.murphy@arm.com> Cc: Will Deacon <will.deacon@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
* arm64: unistd32.h: wire up missing syscalls for compat tasksWill Deacon2016-06-012-1/+9
| | | | | | | | We're missing entries for mlock2, copy_file_range, preadv2 and pwritev2 in our compat syscall table, so hook them up. Only the last two need compat wrappers. Signed-off-by: Will Deacon <will.deacon@arm.com>
* arm64: Provide "model name" in /proc/cpuinfo for PER_LINUX32 tasksCatalin Marinas2016-05-312-3/+9
| | | | | | | | | | | | This patch brings the PER_LINUX32 /proc/cpuinfo format more in line with the 32-bit ARM one by providing an additional line: model name : ARMv8 Processor rev X (v8l) Cc: <stable@vger.kernel.org> Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
* arm64: enable CONFIG_SET_MODULE_RONX by defaultMark Rutland2016-05-311-12/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The SET_MODULE_RONX protections are effectively the same as the DEBUG_RODATA protections we enabled by default back in commit 57efac2f7108e325 ("arm64: enable CONFIG_DEBUG_RODATA by default"). It seems unusual to have one but not the other. As evidenced by the help text, the rationale appears to be that SET_MODULE_RONX interacts poorly with tracing and patching, but both of these make use of the insn framework, which takes SET_MODULE_RONX into account. Any remaining issues are bugs which should be fixed regardless of the default state of the option. This patch enables DEBUG_SET_MODULE_RONX by default, and replaces the help text with a new wording derived from the DEBUG_RODATA help text, which better describes the functionality. Previously, the DEBUG_RODATA entry was inconsistently indented with spaces, which are replaced with tabs as with the other Kconfig entries. Additionally, the wording of recommended defaults is made consistent for all options. These are placed in a new paragraph, unquoted, as a full sentence (with a period/full stop) as this appears to be the most common form per $(git grep 'in doubt'). Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Laura Abbott <labbott@fedoraproject.org> Acked-by: Kees Cook <keescook@chromium.org> Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
* arm64: Remove orphaned __addr_ok() definitionRobin Murphy2016-05-311-13/+0
| | | | | | | | | | Since commit 12a0ef7b0ac3 ("arm64: use generic strnlen_user and strncpy_from_user functions"), the definition of __addr_ok() has been languishing unused; eradicate the sucker. CC: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Robin Murphy <robin.murphy@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
* Revert "arm64: hugetlb: partial revert of 66b3923a1a0f"Will Deacon2016-05-311-0/+14
| | | | | | | | | | | This reverts commit ff7925848b50050732ac0401e0acf27e8b241d7b. Now that the contiguous-hint hugetlb regression has been debugged and fixed upstream by 66ee95d16a7f ("mm: exclude HugeTLB pages from THP page_mapped() logic"), we can revert the previous partial revert of this feature. Signed-off-by: Will Deacon <will.deacon@arm.com>
* Linux 4.7-rc1v4.7-rc1Linus Torvalds2016-05-291-3/+3
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* hash_string: Fix zero-length case for !DCACHE_WORD_ACCESSGeorge Spelvin2016-05-291-2/+2
| | | | | | | | | | The self-test was updated to cover zero-length strings; the function needs to be updated, too. Reported-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: George Spelvin <linux@sciencehorizons.net> Fixes: fcfd2fbf22d2 ("fs/namei.c: Add hashlen_string() function") Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Rename other copy of hash_string to hashlen_stringGeorge Spelvin2016-05-281-2/+2
| | | | | | | | | | | | | | | | The original name was simply hash_string(), but that conflicted with a function with that name in drivers/base/power/trace.c, and I decided that calling it "hashlen_" was better anyway. But you have to do it in two places. [ This caused build errors for architectures that don't define CONFIG_DCACHE_WORD_ACCESS - Linus ] Signed-off-by: George Spelvin <linux@sciencehorizons.net> Reported-by: Guenter Roeck <linux@roeck-us.net> Fixes: fcfd2fbf22d2 ("fs/namei.c: Add hashlen_string() function") Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* hpfs: implement the show_options methodMikulas Patocka2016-05-281-11/+32
| | | | | | | | | | | | | | | | The HPFS filesystem used generic_show_options to produce string that is displayed in /proc/mounts. However, there is a problem that the options may disappear after remount. If we mount the filesystem with option1 and then remount it with option2, /proc/mounts should show both option1 and option2, however it only shows option2 because the whole option string is replaced with replace_mount_options in hpfs_remount_fs. To fix this bug, implement the hpfs_show_options function that prints options that are currently selected. Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Cc: stable@vger.kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* affs: fix remount failure when there are no options changedMikulas Patocka2016-05-281-2/+3
| | | | | | | | | | | | | | | | | | | | | | Commit c8f33d0bec99 ("affs: kstrdup() memory handling") checks if the kstrdup function returns NULL due to out-of-memory condition. However, if we are remounting a filesystem with no change to filesystem-specific options, the parameter data is NULL. In this case, kstrdup returns NULL (because it was passed NULL parameter), although no out of memory condition exists. The mount syscall then fails with ENOMEM. This patch fixes the bug. We fail with ENOMEM only if data is non-NULL. The patch also changes the call to replace_mount_options - if we didn't pass any filesystem-specific options, we don't call replace_mount_options (thus we don't erase existing reported options). Fixes: c8f33d0bec99 ("affs: kstrdup() memory handling") Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Cc: stable@vger.kernel.org # v4.1+ Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* hpfs: fix remount failure when there are no options changedMikulas Patocka2016-05-281-2/+3
| | | | | | | | | | | | | | | | | | | | | | Commit ce657611baf9 ("hpfs: kstrdup() out of memory handling") checks if the kstrdup function returns NULL due to out-of-memory condition. However, if we are remounting a filesystem with no change to filesystem-specific options, the parameter data is NULL. In this case, kstrdup returns NULL (because it was passed NULL parameter), although no out of memory condition exists. The mount syscall then fails with ENOMEM. This patch fixes the bug. We fail with ENOMEM only if data is non-NULL. The patch also changes the call to replace_mount_options - if we didn't pass any filesystem-specific options, we don't call replace_mount_options (thus we don't erase existing reported options). Fixes: ce657611baf9 ("hpfs: kstrdup() out of memory handling") Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Cc: stable@vger.kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linusLinus Torvalds2016-05-2867-258/+373
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull more MIPS updates from Ralf Baechle: "This is the secondnd batch of MIPS patches for 4.7. Summary: CPS: - Copy EVA configuration when starting secondary VPs. EIC: - Clear Status IPL. Lasat: - Fix a few off by one bugs. lib: - Mark intrinsics notrace. Not only are the intrinsics uninteresting, it would cause infinite recursion. MAINTAINERS: - Add file patterns for MIPS BRCM device tree bindings. - Add file patterns for mips device tree bindings. MT7628: - Fix MT7628 pinmux typos. - wled_an pinmux gpio. - EPHY LEDs pinmux support. Pistachio: - Enable KASLR VDSO: - Build microMIPS VDSO for microMIPS kernels. - Fix aliasing warning by building with `-fno-strict-aliasing' for debugging but also tracing them might result in recursion. Misc: - Add missing FROZEN hotplug notifier transitions. - Fix clk binding example for varioius PIC32 devices. - Fix cpu interrupt controller node-names in the DT files. - Fix XPA CPU feature separation. - Fix write_gc0_* macros when writing zero. - Add inline asm encoding helpers. - Add missing VZ accessor microMIPS encodings. - Fix little endian microMIPS MSA encodings. - Add 64-bit HTW fields and fix its configuration. - Fix sigreturn via VDSO on microMIPS kernel. - Lots of typo fixes. - Add definitions of SegCtl registers and use them" * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (49 commits) MIPS: Add missing FROZEN hotplug notifier transitions MIPS: Build microMIPS VDSO for microMIPS kernels MIPS: Fix sigreturn via VDSO on microMIPS kernel MIPS: devicetree: fix cpu interrupt controller node-names MIPS: VDSO: Build with `-fno-strict-aliasing' MIPS: Pistachio: Enable KASLR MIPS: lib: Mark intrinsics notrace MIPS: Fix 64-bit HTW configuration MIPS: Add 64-bit HTW fields MAINTAINERS: Add file patterns for mips device tree bindings MAINTAINERS: Add file patterns for mips brcm device tree bindings MIPS: Simplify DSP instruction encoding macros MIPS: Add missing tlbinvf/XPA microMIPS encodings MIPS: Fix little endian microMIPS MSA encodings MIPS: Add missing VZ accessor microMIPS encodings MIPS: Add inline asm encoding helpers MIPS: Spelling fix lets -> let's MIPS: VR41xx: Fix typo MIPS: oprofile: Fix typo MIPS: math-emu: Fix typo ...
| * MIPS: Add missing FROZEN hotplug notifier transitionsAnna-Maria Gleixner2016-05-281-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | The corresponding FROZEN hotplug notifier transitions used on suspend/resume are ignored. Therefore the switch case action argument is masked with the frozen hotplug notifier transition mask. Signed-off-by: Anna-Maria Gleixner <anna-maria@linutronix.de> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Cc: rt@linutronix.de Patchwork: https://patchwork.linux-mips.org/patch/13351/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * MIPS: Build microMIPS VDSO for microMIPS kernelsJames Hogan2016-05-281-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | MicroMIPS kernels may be expected to run on microMIPS only cores which don't support the normal MIPS instruction set, so be sure to pass the -mmicromips flag through to the VDSO cflags. Fixes: ebb5e78cc634 ("MIPS: Initial implementation of a VDSO") Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: Paul Burton <paul.burton@imgtec.com> Cc: linux-mips@linux-mips.org Cc: <stable@vger.kernel.org> # 4.4.x- Patchwork: https://patchwork.linux-mips.org/patch/13349/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * MIPS: Fix sigreturn via VDSO on microMIPS kernelJames Hogan2016-05-281-8/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In microMIPS kernels, handle_signal() sets the isa16 mode bit in the vdso address so that the sigreturn trampolines (which are offset from the VDSO) get executed as microMIPS. However commit ebb5e78cc634 ("MIPS: Initial implementation of a VDSO") changed the offsets to come from the VDSO image, which already have the isa16 mode bit set correctly since they're extracted from the VDSO shared library symbol table. Drop the isa16 mode bit handling from handle_signal() to fix sigreturn for cores which support both microMIPS and normal MIPS. This doesn't fix microMIPS only cores, since the VDSO is still built for normal MIPS, but thats a separate problem. Fixes: ebb5e78cc634 ("MIPS: Initial implementation of a VDSO") Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: Paul Burton <paul.burton@imgtec.com> Cc: linux-mips@linux-mips.org Cc: <stable@vger.kernel.org> # 4.4.x- Patchwork: https://patchwork.linux-mips.org/patch/13348/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * MIPS: devicetree: fix cpu interrupt controller node-namesAntony Pavlov2016-05-287-7/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Here is the quote from [1]: The unit-address must match the first address specified in the reg property of the node. If the node has no reg property, the @ and unit-address must be omitted and the node-name alone differentiates the node from other nodes at the same level This patch adjusts MIPS dts-files and devicetree binding documentation in accordance with [1]. [1] Power.org(tm) Standard for Embedded Power Architecture(tm) Platform Requirements (ePAPR). Version 1.1 – 08 April 2011. Chapter 2.2.1.1 Node Name Requirements Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com> Cc: Paul Burton <paul.burton@imgtec.com> Cc: Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com> Cc: Rob Herring <robh+dt@kernel.org> Cc: Pawel Moll <pawel.moll@arm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Ian Campbell <ijc+devicetree@hellion.org.uk> Cc: Kumar Gala <galak@codeaurora.org> Cc: linux-mips@linux-mips.org Cc: devicetree@vger.kernel.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/13345/ Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * MIPS: VDSO: Build with `-fno-strict-aliasing'Maciej W. Rozycki2016-05-281-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Avoid an aliasing issue causing a build error in VDSO: In file included from include/linux/srcu.h:34:0, from include/linux/notifier.h:15, from ./arch/mips/include/asm/uprobes.h:9, from include/linux/uprobes.h:61, from include/linux/mm_types.h:13, from ./arch/mips/include/asm/vdso.h:14, from arch/mips/vdso/vdso.h:27, from arch/mips/vdso/gettimeofday.c:11: include/linux/workqueue.h: In function 'work_static': include/linux/workqueue.h:186:2: error: dereferencing type-punned pointer will break strict-aliasing rules [-Werror=strict-aliasing] return *work_data_bits(work) & WORK_STRUCT_STATIC; ^ cc1: all warnings being treated as errors make[2]: *** [arch/mips/vdso/gettimeofday.o] Error 1 with a CONFIG_DEBUG_OBJECTS_WORK configuration and GCC 5.2.0. Include `-fno-strict-aliasing' along with compiler options used, as required for kernel code, fixing a problem present since the introduction of VDSO with commit ebb5e78cc634 ("MIPS: Initial implementation of a VDSO"). Thanks to Tejun for diagnosing this properly! Signed-off-by: Maciej W. Rozycki <macro@imgtec.com> Reviewed-by: James Hogan <james.hogan@imgtec.com> Fixes: ebb5e78cc634 ("MIPS: Initial implementation of a VDSO") Cc: Tejun Heo <tj@kernel.org> Cc: linux-mips@linux-mips.org Cc: stable@vger.kernel.org # v4.3+ Patchwork: https://patchwork.linux-mips.org/patch/13357/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * MIPS: Pistachio: Enable KASLRMatt Redfearn2016-05-282-2/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Allow KASLR to be selected on Pistachio based systems. Tested on a Creator Ci40. Signed-off-by: Matt Redfearn <matt.redfearn@imgtec.com> Reviewed-by: James Hogan <james.hogan@imgtec.com> Cc: Andrew Bresticker <abrestic@chromium.org> Cc: Jonas Gorski <jogo@openwrt.org> Cc: linux-kernel@vger.kernel.org Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/13356/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * MIPS: lib: Mark intrinsics notraceHarvey Hunt2016-05-287-7/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On certain MIPS32 devices, the ftrace tracer "function_graph" uses __lshrdi3() during the capturing of trace data. ftrace then attempts to trace __lshrdi3() which leads to infinite recursion and a stack overflow. Fix this by marking __lshrdi3() as notrace. Mark the other compiler intrinsics as notrace in case the compiler decides to use them in the ftrace path. Signed-off-by: Harvey Hunt <harvey.hunt@imgtec.com> Cc: <linux-mips@linux-mips.org> Cc: <linux-kernel@vger.kernel.org> Cc: <stable@vger.kernel.org> # 4.2.x- Patchwork: https://patchwork.linux-mips.org/patch/13354/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * MIPS: Fix 64-bit HTW configurationJames Hogan2016-05-281-2/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The Hardware page Table Walker (HTW) is being misconfigured on 64-bit kernels. The PWSize.PS (pointer size) bit determines whether pointers within directories are loaded as 32-bit or 64-bit addresses, but was never being set to 1 for 64-bit kernels where the unsigned long in pgd_t is 64-bits wide. This actually reduces rather than improves performance when the HTW is enabled on P6600 since the HTW is initiated lots, but walks are all aborted due I think to bad intermediate pointers. Since we were already taking the width of the PTEs into account by setting PWSize.PTEW, which is the left shift applied to the page table index *in addition to* the native pointer size, we also need to reduce PTEW by 1 when PS=1. This is done by calculating PTEW based on the relative size of pte_t compared to pgd_t. Finally in order for the HTW to be used when PS=1, the appropriate XK/XS/XU bits corresponding to the different 64-bit segments need to be set in PWCtl. We enable only XU for now to enable walking for XUSeg. Supporting walking for XKSeg would be a bit more involved so is left for a future patch. It would either require the use of a per-CPU top level base directory if supported by the HTW (a bit like pgd_current but with a second entry pointing at swapper_pg_dir), or the HTW would prepend bit 63 of the address to the global directory index which doesn't really match how we split user and kernel page directories. Fixes: cab25bc7537b ("MIPS: Extend hardware table walking support to MIPS64") Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: Paul Burton <paul.burton@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/13364/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * MIPS: Add 64-bit HTW fieldsJames Hogan2016-05-282-2/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Add field definitions for some of the 64-bit specific Hardware page Table Walker (HTW) register fields in PWSize and PWCtl, in preparation for fixing the 64-bit HTW configuration. Also print these fields out along with the others in print_htw_config(). Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: Paul Burton <paul.burton@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/13363/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * MAINTAINERS: Add file patterns for mips device tree bindingsGeert Uytterhoeven2016-05-281-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | Submitters of device tree binding documentation may forget to CC the subsystem maintainer if this is missing. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Cc: linux-mips@linux-mips.org Cc: devicetree@vger.kernel.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/13340/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * MAINTAINERS: Add file patterns for mips brcm device tree bindingsGeert Uytterhoeven2016-05-281-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Submitters of device tree binding documentation may forget to CC the subsystem maintainer if this is missing. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Hauke Mehrtens <hauke@hauke-m.de> Cc: Rafał Miłecki <zajec5@gmail.com> Cc: linux-mips@linux-mips.org Cc: devicetree@vger.kernel.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/13339/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * MIPS: Simplify DSP instruction encoding macrosJames Hogan2016-05-281-90/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Simplify the DSP instruction wrapper macros which use explicit encodings for microMIPS and normal MIPS by using the new encoding macros and removing duplication. To me this makes it easier to read since it is much shorter, but it also ensures .insn is used, preventing objdump disassembling the microMIPS code as normal MIPS. Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/13314/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * MIPS: Add missing tlbinvf/XPA microMIPS encodingsJames Hogan2016-05-281-5/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | Hardcoded MIPS instruction encodings are provided for tlbinvf, mfhc0 & mthc0 instructions, but microMIPS encodings are missing. I doubt any microMIPS cores exist at present which support these instructions, but the microMIPS encodings exist, and microMIPS cores may support them in the future. Add the missing microMIPS encodings using the new macros. Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/13313/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * MIPS: Fix little endian microMIPS MSA encodingsJames Hogan2016-05-282-62/+58
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When the toolchain doesn't support MSA we encode MSA instructions explicitly in assembly. Unfortunately we use .word for both MIPS and microMIPS encodings which is wrong, since 32-bit microMIPS instructions are made up from a pair of halfwords. - The most significant halfword always comes first, so for little endian builds the halves will be emitted in the wrong order. - 32-bit alignment isn't guaranteed, so the assembler may insert a 16-bit nop instruction to pad the instruction stream to a 32-bit boundary. Use the new instruction encoding macros to encode microMIPS MSA instructions correctly. Fixes: d96cc3d1ec5d ("MIPS: Add microMIPS MSA support.") Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: Paul Burton <Paul.Burton@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/13312/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * MIPS: Add missing VZ accessor microMIPS encodingsJames Hogan2016-05-281-9/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Toolchains may be used which support microMIPS but not VZ instructions (i.e. binutis 2.22 & 2.23), so extend the explicitly encoded versions of the guest COP0 register & guest TLB access macros to support microMIPS encodings too, using the new macros. This prevents non-microMIPS instructions being executed in microMIPS mode during CPU probe on cores supporting VZ (e.g. M5150), which cause reserved instruction exceptions early during boot. Fixes: bad50d79255a ("MIPS: Fix VZ probe gas errors with binutils <2.24") Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/13311/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * MIPS: Add inline asm encoding helpersJames Hogan2016-05-281-0/+27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | To allow simplification of macros which use inline assembly to explicitly encode instructions, add a few simple abstractions to mipsregs.h which expand to specific microMIPS or normal MIPS encodings depending on what type of kernel is being built: _ASM_INSN_IF_MIPS(_enc) : Emit a 32bit MIPS instruction if microMIPS is not enabled. _ASM_INSN32_IF_MM(_enc) : Emit a 32bit microMIPS instruction if enabled. _ASM_INSN16_IF_MM(_enc) : Emit a 16bit microMIPS instruction if enabled. The macros can be used one after another since the MIPS / microMIPS macros are mutually exclusive, for example: __asm__ __volatile__( ".set push\n\t" ".set noat\n\t" "# mfgc0 $1, $%1, %2\n\t" _ASM_INSN_IF_MIPS(0x40610000 | %1 << 11 | %2) _ASM_INSN32_IF_MM(0x002004fc | %1 << 16 | %2 << 11) "move %0, $1\n\t" ".set pop" : "=r" (__res) : "i" (source), "i" (sel)); Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/13310/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * MIPS: Spelling fix lets -> let'sRalf Baechle2016-05-289-10/+10
| | | | | | | | | | | | | | As noticed by Sergei in the discussion of Andrea Gelmini's patch series. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Reported-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
| * MIPS: VR41xx: Fix typoAndrea Gelmini2016-05-281-1/+1
| | | | | | | | | | | | | | | | Signed-off-by: Andrea Gelmini <andrea.gelmini@gelma.net> Cc: trivial@kernel.org Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/13338/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * MIPS: oprofile: Fix typoAndrea Gelmini2016-05-281-1/+1
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Andrea Gelmini <andrea.gelmini@gelma.net> Cc: rric@kernel.org Cc: linux-mips@linux-mips.org Cc: trivial@kernel.org Cc: oprofile-list@lists.sf.net Patchwork: https://patchwork.linux-mips.org/patch/13334/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * MIPS: math-emu: Fix typoAndrea Gelmini2016-05-281-2/+2
| | | | | | | | | | | | | | | | | | Signed-off-by: Andrea Gelmini <andrea.gelmini@gelma.net> Cc: macro@imgtec.com Cc: trivial@kernel.org Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/13333/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * MIPS: lib: Fix typoAndrea Gelmini2016-05-281-1/+1
| | | | | | | | | | | | | | | | Signed-off-by: Andrea Gelmini <andrea.gelmini@gelma.net> Cc: trivial@kernel.org Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/13331/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * MIPS: kernel: Fix typoAndrea Gelmini2016-05-281-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Andrea Gelmini <andrea.gelmini@gelma.net> Cc: paul.burton@imgtec.com Cc: macro@imgtec.com Cc: james.hogan@imgtec.com Cc: jslaby@suse.cz Cc: adam.buchbinder@gmail.com Cc: trivial@kernel.org Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/13330/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * MIPS: R6: Fix typoAndrea Gelmini2016-05-281-1/+1
| | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Andrea Gelmini <andrea.gelmini@gelma.net> Cc: macro@imgtec.com Cc: paul.burton@imgtec.com Cc: Leonid.Yegoshin@imgtec.com Cc: trivial@kernel.org Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/13329/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * MIPS: IP22/IP28: Fix typoAndrea Gelmini2016-05-281-1/+1
| | | | | | | | | | | | | | | | | | Signed-off-by: Andrea Gelmini <andrea.gelmini@gelma.net> Cc: adam.buchbinder@gmail.com Cc: trivial@kernel.org Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/13328/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * MIPS: Cavium: Fix typoAndrea Gelmini2016-05-284-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Andrea Gelmini <andrea.gelmini@gelma.net> Cc: david.daney@cavium.com Cc: janne.huttunen@nokia.com Cc: aaro.koskinen@nokia.com Cc: trivial@kernel.org Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/13324/ Patchwork: https://patchwork.linux-mips.org/patch/13325/ Patchwork: https://patchwork.linux-mips.org/patch/13326/ Patchwork: https://patchwork.linux-mips.org/patch/13327/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * MIPS: MT: Fix typoAndrea Gelmini2016-05-281-1/+1
| | | | | | | | | | | | | | | | Signed-off-by: Andrea Gelmini <andrea.gelmini@gelma.net> Cc: linux-mips@linux-mips.org Cc: trivial@kernel.org Patchwork: https://patchwork.linux-mips.org/patch/13323/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * MIPS: Loongson64: Fix typoAndrea Gelmini2016-05-282-2/+2
| | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Andrea Gelmini <andrea.gelmini@gelma.net> Cc: chenhc@lemote.com Cc: viresh.kumar@linaro.org Cc: linux-mips@linux-mips.org Cc: trivial@kernel.org Patchwork: https://patchwork.linux-mips.org/patch/13322/ Patchwork: https://patchwork.linux-mips.org/patch/13332/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * MIPS: IP32: Fix typoAndrea Gelmini2016-05-281-1/+1
| | | | | | | | | | | | | | | | Signed-off-by: Andrea Gelmini <andrea.gelmini@gelma.net> Cc: trivial@kernel.org Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/13321/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * MIPS: IP27: Fix typoAndrea Gelmini2016-05-283-4/+4
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Andrea Gelmini <andrea.gelmini@gelma.net> Cc: trivial@kernel.org Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/13320/ Patchwork: https://patchwork.linux-mips.org/patch/13335/ Patchwork: https://patchwork.linux-mips.org/patch/13336/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * MIPS: BCM63xx: Fix typoAndrea Gelmini2016-05-281-1/+1
| | | | | | | | | | | | | | | | Signed-off-by: Andrea Gelmini <andrea.gelmini@gelma.net> Cc: trivial@kernel.org Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/13319/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * MIPS: Alchemy: Fix typoAndrea Gelmini2016-05-281-1/+1
| | | | | | | | | | | | | | | | Signed-off-by: Andrea Gelmini <andrea.gelmini@gelma.net> Cc: trivial@kernel.org Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/13318/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * MIPS: hazards.h: Fix typoAndrea Gelmini2016-05-281-4/+4
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Andrea Gelmini <andrea.gelmini@gelma.net> Cc: chenhc@lemote.com Cc: james.hogan@imgtec.com Cc: linux-mips@linux-mips.org Cc: trivial@kernel.org Patchwork: https://patchwork.linux-mips.org/patch/13317/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * MIPS: Lasat: A couple off by one bugs in picvue_proc.cDan Carpenter2016-05-281-2/+2
| | | | | | | | | | | | | | | | | | | | | | These should be ">=" instead of ">" or we go past the end of the pvc_lines[] array. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Cc: linux-mips@linux-mips.org Cc: kernel-janitors@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/6124/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * MIPS: ralink: add MT7628 EPHY LEDs pinmux supportÁlvaro Fernández Rojas2016-05-281-0/+100
| | | | | | | | | | | | | | | | | | Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> Cc: john@phrozen.org Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/13308/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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