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2016-11-15Merge branch 'linux-linaro-lsk-v4.4' into linux-linaro-lsk-v4.4-androidAmit Pundir
Conflicts: * arch/arm64/include/asm/assembler.h Pick changes from AOSP Change-Id: I450594dc311b09b6b832b707a9abb357608cc6e4 ("UPSTREAM: arm64: include alternative handling in dcache_by_line_op"). * drivers/android/binder.c Pick changes from LTS commit 14f09e8e7cd8 ("ANDROID: binder: Add strong ref checks"), instead of AOSP Change-Id: I66c15b066808f28bd27bfe50fd0e03ff45a09fca ("ANDROID: binder: Add strong ref checks"). * drivers/usb/gadget/function/u_ether.c Refactor throttling of highspeed IRQ logic in AOSP by adding a check for last queue request as intended by LTS commit 660c04e8f174 ("usb: gadget: function: u_ether: don't starve tx request queue"). Fixes AOSP Change-Id: I26515bfd9bbc8f7af38be7835692143f7093118a ("USB: gadget: u_ether: Fix data stall issue in RNDIS tethering mode"). Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
2016-11-15 Merge tag 'v4.4.32' into linux-linaro-lsk-v4.4Alex Shi
This is the 4.4.32 stable release
2016-11-15of: silence warnings due to max() usageStephen Rothwell
commit aaaab56dba9af4fe75461e0ee13231c1a6ea174d upstream. pageblock_order can be (at least) an unsigned int or an unsigned long depending on the kernel config and architecture, so use max_t(unsigned long ...) when comparing it. fixes these warnings: In file included from include/linux/list.h:8:0, from include/linux/kobject.h:20, from include/linux/of.h:21, from drivers/of/of_reserved_mem.c:17: drivers/of/of_reserved_mem.c: In function ‘__reserved_mem_alloc_size’: include/linux/kernel.h:748:17: warning: comparison of distinct pointer types lacks a cast (void) (&_max1 == &_max2); \ ^ include/linux/kernel.h:747:9: note: in definition of macro ‘max’ typeof(y) _max2 = (y); \ ^ drivers/of/of_reserved_mem.c:131:48: note: in expansion of macro ‘max’ align = max(align, (phys_addr_t)PAGE_SIZE << max(MAX_ORDER - 1, pageblock_ord ^ include/linux/kernel.h:748:17: warning: comparison of distinct pointer types lacks a cast (void) (&_max1 == &_max2); \ ^ include/linux/kernel.h:747:21: note: in definition of macro ‘max’ typeof(y) _max2 = (y); \ ^ drivers/of/of_reserved_mem.c:131:48: note: in expansion of macro ‘max’ align = max(align, (phys_addr_t)PAGE_SIZE << max(MAX_ORDER - 1, pageblock_ord ^ Fixes: 1cc8e3458b51 ("drivers: of: of_reserved_mem: fixup the alignment with CMA setup") Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Rob Herring <robh@kernel.org> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-09-20Merge branch 'linux-linaro-lsk-v4.4' into linux-linaro-lsk-v4.4-androidAlex Shi
Conflicts: in fs/proc/task_mmu.c: looks like vma_get_anon_name() want have a name for anonymous vma when there is no name used in vma. commit: 586278d78bf The name show is after any other names, so it maybe covered. but anyway, it just a show here.
2016-09-20Merge remote-tracking branch 'lts/linux-4.4.y' into linux-linaro-lsk-v4.4Alex Shi
Conflicts: set ARM64_WORKAROUND_CAVIUM_27456 to 12 in arch/arm64/include/asm/cpufeature.h and add asm/memory.h in arch/arm64/kernel/entry.S
2016-09-07of: fix reference counting in of_graph_get_endpoint_by_regsLucas Stach
commit 34276bb062b8449b3b0a208c9b848a1a27920075 upstream. The called of_graph_get_next_endpoint() already decrements the refcount of the prev node, so it is wrong to do it again in the calling function. Use the for_each_endpoint_of_node() helper to interate through the endpoint OF nodes, which already does the right thing and simplifies the code a bit. Fixes: 8ccd0d0ca041 (of: add helper for getting endpoint node of specific identifiers) Reported-by: David Jander <david@protonic.nl> Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Acked-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Rob Herring <robh@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-08-20of: fix memory leak related to safe_name()Frank Rowand
commit d9fc880723321dbf16b2981e3f3e916b73942210 upstream. Fix a memory leak resulting from memory allocation in safe_name(). This patch fixes all call sites of safe_name(). Mathieu Malaterre reported the memory leak on boot: On my PowerMac device-tree would generate a duplicate name: [ 0.023043] device-tree: Duplicate name in PowerPC,G4@0, renamed to "l2-cache#1" in this case a newly allocated name is generated by `safe_name`. However in this case it is never deallocated. The bug was found using kmemleak reported as: unreferenced object 0xdf532e60 (size 32): comm "swapper", pid 1, jiffies 4294892300 (age 1993.532s) hex dump (first 32 bytes): 6c 32 2d 63 61 63 68 65 23 31 00 dd e4 dd 1e c2 l2-cache#1...... ec d4 ba ce 04 ec cc de 8e 85 e9 ca c4 ec cc 9e ................ backtrace: [<c02d3350>] kvasprintf+0x64/0xc8 [<c02d3400>] kasprintf+0x4c/0x5c [<c0453814>] safe_name.isra.1+0x80/0xc4 [<c04545d8>] __of_attach_node_sysfs+0x6c/0x11c [<c075f21c>] of_core_init+0x8c/0xf8 [<c0729594>] kernel_init_freeable+0xd4/0x208 [<c00047e8>] kernel_init+0x24/0x11c [<c00158ec>] ret_from_kernel_thread+0x5c/0x64 Link: https://bugzilla.kernel.org/show_bug.cgi?id=120331 Signed-off-by: Frank Rowand <frank.rowand@am.sony.com> Reported-by: mathieu.malaterre@gmail.com Tested-by: Mathieu Malaterre <mathieu.malaterre@gmail.com> Signed-off-by: Rob Herring <robh@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-07-29Merge branch 'linux-linaro-lsk-v4.4' into linux-linaro-lsk-v4.4-androidlsk-v4.4-16.07-androidMark Brown
2016-07-29Merge tag 'v4.4.16' into linux-linaro-lsk-v4.4lsk-v4.4-16.07Mark Brown
This is the 4.4.16 stable release # gpg: Signature made Wed 27 Jul 2016 17:48:38 BST using RSA key ID 6092693E # gpg: requesting key 6092693E from hkp server the.earth.li # gpg: key 6092693E: public key "Greg Kroah-Hartman (Linux kernel stable release signing key) <greg@kroah.com>" imported # gpg: public key of ultimately trusted key B4B0BED6 not found # gpg: 2 marginal(s) needed, 1 complete(s) needed, PGP trust model # gpg: depth: 0 valid: 1 signed: 0 trust: 0-, 0q, 0n, 0m, 0f, 1u # gpg: Total number processed: 1 # gpg: imported: 1 (RSA: 1) # gpg: Good signature from "Greg Kroah-Hartman (Linux kernel stable release signing key) <greg@kroah.com>" # gpg: WARNING: This key is not certified with a trusted signature! # gpg: There is no indication that the signature belongs to the owner. # Primary key fingerprint: 647F 2865 4894 E3BD 4571 99BE 38DB BDC8 6092 693E
2016-07-27of: irq: fix of_irq_get[_byname]() kernel-docSergei Shtylyov
commit 3993546646baf1dab5f5c4f7d9bb58f2046fd1c1 upstream. The kernel-doc for the of_irq_get[_byname]() is clearly inadequate in describing the return values -- of_irq_get_byname() is documented better than of_irq_get() but it still doesn't mention that 0 is returned iff irq_create_of_mapping() fails (it doesn't return an error code in this case). Document all possible return value variants, making the writing of the word "IRQ" consistent, while at it... Fixes: 9ec36cafe43b ("of/irq: do irq resolution in platform_get_irq") Fixes: ad69674e73a1 ("of/irq: do irq resolution in platform_get_irq_byname()") Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: Rob Herring <robh@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-05-12Merge branch 'linux-linaro-lsk-v4.4' into linux-linaro-lsk-v4.4-androidAlex Shi
2016-05-11of/fdt: factor out assignment of initrd_start/initrd_endArd Biesheuvel
Since architectures may not yet have their linear mapping up and running when the initrd address is discovered from the DT, factor out the assignment of initrd_start and initrd_end, so that an architecture can override it and use the translation it needs. Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> (cherry picked from commit 369bc9abf22bf026e8645a4dd746b90649a2f6ee) Signed-off-by: Alex Shi <alex.shi@linaro.org>
2016-05-11of/fdt: make memblock minimum physical address arch configurableArd Biesheuvel
By default, early_init_dt_add_memory_arch() ignores memory below the base of the kernel image since it won't be addressable via the linear mapping. However, this is not appropriate anymore once we decouple the kernel text mapping from the linear mapping, so archs may want to drop the low limit entirely. So allow the minimum to be overridden by setting MIN_MEMBLOCK_ADDR. Acked-by: Mark Rutland <mark.rutland@arm.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> (cherry picked from commit 270522a04f7a9911983878fa37da467f9ff1c938) Signed-off-by: Alex Shi <alex.shi@linaro.org>
2016-04-13Merge branch 'linux-linaro-lsk-v4.4' into linux-linaro-lsk-v4.4-androidAlex Shi
2016-04-12of: alloc anywhere from memblock if range not specifiedVinayak Menon
commit e53b50c0cbe392c946807abf7d07615a3c588642 upstream. early_init_dt_alloc_reserved_memory_arch passes end as 0 to __memblock_alloc_base, when limits are not specified. But __memblock_alloc_base takes end value of 0 as MEMBLOCK_ALLOC_ACCESSIBLE and limits the end to memblock.current_limit. This results in regions never being placed in HIGHMEM area, for e.g. CMA. Let __memblock_alloc_base allocate from anywhere in memory if limits are not specified. Acked-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Vinayak Menon <vinmenon@codeaurora.org> Signed-off-by: Rob Herring <robh@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-14Merge branch 'linux-linaro-lsk-v4.4' into linux-linaro-lsk-v4.4-androidAlex Shi
Conflicts solution: keep 'KBUILD_CFLAGS += -fno-pic' in arch/arm64/Makefile
2016-03-03of/irq: Fix msi-map calculation for nonzero rid-baseRobin Murphy
commit 5d589d81acf974d23af98044aac56c6339d659f8 upstream. The existing msi-map code is fine for shifting the entire RID space upwards, but attempting finer-grained remapping reveals a bug. It turns out that we are mistakenly treating the msi-base part as an offset, not as a new base to remap onto, so things get squiffy when rid-base is nonzero. Fix this, and at the same time add a sanity check against having msi-map-mask clash with a nonzero rid-base, as that's another thing one can easily get wrong. Signed-off-by: Robin Murphy <robin.murphy@arm.com> Reviewed-by: Marc Zyngier <marc.zyngier@arm.com> Tested-by: Stuart Yoder <stuart.yoder@nxp.com> Acked-by: Mark Rutland <mark.rutland@arm.com> Acked-by: David Daney <david.daney@cavium.com> Signed-off-by: Rob Herring <robh@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-16of: Fix build warningsJohn Stultz
In commit d6cb004d80 (of: fix CONFIG_CMDLINE_EXTEND), the types of some variables in early_init_dt_scan_chosen() were modified, which results in build warnings. This patch resets the unsigned long to an int, and re-adds the const to the char*. Change-Id: Ie60ae92b4552e453cf477dd83f42838b3f95975e Signed-off-by: John Stultz <john.stultz@linaro.org>
2016-02-16of: fix CONFIG_CMDLINE_EXTENDColin Cross
strlcat takes the size of the buffer, not the number of characters to concatenate. If the size of the device tree command line p is larger than the CONFIG_CMDLINE string data, then strcat(data, p, l) will hit a BUG_ON because strlen(data) > l. Replace the second strlcat with a strncpy plus a manual null termination. Also rearrange the code to reduce indent depth to make it more readable, and replace data with a char *cmdline to avoid extra casts. Signed-off-by: Colin Cross <ccross@android.com>
2016-02-16of: Support CONFIG_CMDLINE_EXTEND config optionDoug Anderson
The old logic assumes CMDLINE_FROM_BOOTLOADER vs. CMDLINE_FORCE and ignores CMDLINE_EXTEND. Here's the old logic: - CONFIG_CMDLINE_FORCE=true CONFIG_CMDLINE - dt bootargs=non-empty: dt bootargs - dt bootargs=empty, @data is non-empty string @data is left unchanged - dt bootargs=empty, @data is empty string CONFIG_CMDLINE (or "" if that's not defined) The new logic is now documented in of_fdt.h and is copied here for reference: - CONFIG_CMDLINE_FORCE=true CONFIG_CMDLINE - CONFIG_CMDLINE_EXTEND=true, @data is non-empty string @data + dt bootargs (even if dt bootargs are empty) - CONFIG_CMDLINE_EXTEND=true, @data is empty string CONFIG_CMDLINE + dt bootargs (even if dt bootargs are empty) - CMDLINE_FROM_BOOTLOADER=true, dt bootargs=non-empty: dt bootargs - CMDLINE_FROM_BOOTLOADER=true, dt bootargs=empty, @data is non-empty string @data is left unchanged - CMDLINE_FROM_BOOTLOADER=true, dt bootargs=empty, @data is empty string CONFIG_CMDLINE (or "" if that's not defined) Signed-off-by: Doug Anderson <dianders@chromium.org> CC: devicetree-discuss@lists.ozlabs.org CC: Grant Likely <grant.likely@secretlab.ca> CC: Benjamin Herrenschmidt <benh@kernel.crashing.org> CC: Rob Herring <rob.herring@calxeda.com> Change-Id: I40ace250847f813358125dfcaa8998fd32cf7ea3 Signed-off-by: Colin Cross <ccross@android.com>
2015-12-09of/irq: Export of_irq_find_parent againCarlo Caione
of_irq_find_parent was made static since it had no users outside of of_irq.c. Export it again since we are going to use it again. Signed-off-by: Carlo Caione <carlo@endlessm.com> [robh: move of_irq_find_parent to correct ifdef section] Signed-off-by: Rob Herring <robh@kernel.org>
2015-12-08of/fdt: Add mutex protection for calls to __unflatten_device_tree()Guenter Roeck
__unflatten_device_tree() calls unflatten_dt_node(), which declares a static variable. It is therefore not reentrant. One of the callers of __unflatten_device_tree(), unflatten_device_tree(), is only called once during early initialization and does not need to be protected. The other caller, of_fdt_unflatten_tree(), can be called at any time, possibly multiple times in parallel. This can happen, for example, if multiple devicetree overlays have to be loaded and installed. Without this protection, errors such as the following may be seen. kernel: End of tree marker overwritten: e6a3a458 kernel: find_target_node: Failed to find target-indirect node at /fragment@0 kernel: __of_overlay_create: of_build_overlay_info() failed for tree@/ Add a mutex to of_fdt_unflatten_tree() to make the call reentrant. Cc: Pantelis Antoniou <pantelis.antoniou@konsulko.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Cc: stable@vger.kernel.org # v4.1+ Signed-off-by: Rob Herring <robh@kernel.org>
2015-11-30of/address: fix typo in comment block of of_translate_one()Masahiro Yamada
Remove the "not" before "cannot". I am fixing the comment block style while I am here. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Rob Herring <robh@kernel.org>
2015-11-30of: do not use 0x in front of %paDmitry V. Krivenok
Signed-off-by: Dmitry V. Krivenok <krivenok.dmitry@gmail.com> Signed-off-by: Rob Herring <robh@kernel.org>
2015-11-30of: Fix comparison of reserved memory regionsMichael Ellerman
In order to check for overlapping reserved memory regions, we first need to sort the array of memory regions. This is implemented using sort(), and a custom comparison function __rmem_cmp(). Unfortunatley __rmem_cmp() doesn't work in all cases. Because the two base values are phys_addr_t, they may be u64 on some platforms, in which case subtracting one from the other and then (implicitly) casting to int does not give us the -ve/0/+ve value we need. This leads to incorrect reports about overlaps, eg: ibm,slw-image@1ffe600000 (0x0000001ffe600000--0x0000001ffe700000) overlaps with ibm,firmware-allocs-memory@1000000000 (0x0000001000000000--0x0000001000dc0200) Fix it by just doing the standard double if and return 0 logic. Fixes: ae1add247bf8 ("of: Check for overlap in reserved memory regions") Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Rob Herring <robh@kernel.org>
2015-11-12Merge tag 'pm+acpi-4.4-rc1-2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull more power management and ACPI updates from Rafael Wysocki: "The only new feature in this batch is support for the ACPI _CCA device configuration object, which it a pre-requisite for future ACPI PCI support on ARM64, but should not affect the other architectures. The rest is fixes and cleanups, mostly in cpufreq (including intel_pstate), the Operating Performace Points (OPP) framework and tools (cpupower and turbostat). Specifics: - Support for the ACPI _CCA configuration object intended to tell the OS whether or not a bus master device supports hardware managed cache coherency and a new set of functions to allow drivers to check the cache coherency support for devices in a platform firmware interface agnostic way (Suravee Suthikulpanit, Jeremy Linton). - ACPI backlight quirks for ESPRIMO Mobile M9410 and Dell XPS L421X (Aaron Lu, Hans de Goede). - Fixes for the arm_big_little and s5pv210-cpufreq cpufreq drivers (Jon Medhurst, Nicolas Pitre). - kfree()-related fixup for the recently introduced CPPC cpufreq frontend (Markus Elfring). - intel_pstate fix reducing kernel log noise on systems where P-states are managed by hardware (Prarit Bhargava). - intel_pstate maintainers information update (Srinivas Pandruvada). - cpufreq core optimization related to the handling of delayed work items used by governors (Viresh Kumar). - Locking fixes and cleanups of the Operating Performance Points (OPP) framework (Viresh Kumar). - Generic power domains framework cleanups (Lina Iyer). - cpupower tool updates (Jacob Tanenbaum, Sriram Raghunathan, Thomas Renninger). - turbostat tool updates (Len Brown)" * tag 'pm+acpi-4.4-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (32 commits) PCI: ACPI: Add support for PCI device DMA coherency PCI: OF: Move of_pci_dma_configure() to pci_dma_configure() of/pci: Fix pci_get_host_bridge_device leak device property: ACPI: Remove unused DMA APIs device property: ACPI: Make use of the new DMA Attribute APIs device property: Adding DMA Attribute APIs for Generic Devices ACPI: Adding DMA Attribute APIs for ACPI Device device property: Introducing enum dev_dma_attr ACPI: Honor ACPI _CCA attribute setting cpufreq: CPPC: Delete an unnecessary check before the function call kfree() PM / OPP: Add opp_rcu_lockdep_assert() to _find_device_opp() PM / OPP: Hold dev_opp_list_lock for writers PM / OPP: Protect updates to list_dev with mutex PM / OPP: Propagate error properly from dev_pm_opp_set_sharing_cpus() cpufreq: s5pv210-cpufreq: fix wrong do_div() usage MAINTAINERS: update for intel P-state driver Creating a common structure initialization pattern for struct option cpupower: Enable disabled Cstates if they are below max latency cpupower: Remove debug message when using cpupower idle-set -D switch cpupower: cpupower monitor reports uninitialized values for offline cpus ...
2015-11-11Merge tag 'devicetree-fixes-for-4.4' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux Pull DeviceTree fixes from Rob Herring: - Add empty of_translate_address needed for HiSilicon network driver. - Fix alignment requirements for CMA regions in DT. - Fix booting on PPC systems which can't do WARN() early. - Rename ak4554 binding doc from .c to .txt. * tag 'devicetree-fixes-for-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: of: Provide static inline function for of_translate_address if needed drivers: of: of_reserved_mem: fixup the alignment with CMA setup of: Print rather than WARN'ing when overlap check fails dt-bindings: ak4554: extension should be .txt
2015-11-10drivers: of: of_reserved_mem: fixup the alignment with CMA setupJason Liu
There is an alignment mismatch issue between the of_reserved_mem and the CMA setup requirement. The of_reserved_mem will try to get the alignment value from the DTS and pass it to __memblock_alloc_base to do the memory block base allocation, but the alignment value specified in the DTS may not satisfy the CAM setup requirement since CMA setup required the alignment as the following in the code: align = PAGE_SIZE << max(MAX_ORDER - 1, pageblock_order); The sanity check in the function of rmem_cma_setup will fail if the alignment does not setup correctly and thus CMA will fail to setup. This patch is to fixup the alignment to meet the CMA setup required. Mailing-list-thread: https://lkml.org/lkml/2015/11/9/138 Signed-off-by: Jason Liu <r64343@freescale.com> Acked-by: Marek Szyprowski <m.szyprowski@samsung.com> Cc: Grant Likely <grant.likely@linaro.org> Cc: Rob Herring <robh+dt@kernel.org> Cc: stable@vger.kernel.org Signed-off-by: Rob Herring <robh@kernel.org>
2015-11-10of: Print rather than WARN'ing when overlap check failsMichael Ellerman
__rmem_check_for_overlap() is called very early in boot, and on some powerpc systems it's not safe to call WARN that early in boot. If the overlap check fails the system will oops instead of printing a warning. Furthermore because it's so early in boot the console is not up and the user doesn't see the oops, they just get a dead system. Fix it by printing an error instead of calling WARN. Fixes: ae1add247bf8 ("of: Check for overlap in reserved memory regions") Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Rob Herring <robh@kernel.org>
2015-11-07Merge branch 'acpi-pci'Rafael J. Wysocki
* acpi-pci: PCI: ACPI: Add support for PCI device DMA coherency PCI: OF: Move of_pci_dma_configure() to pci_dma_configure() of/pci: Fix pci_get_host_bridge_device leak device property: ACPI: Remove unused DMA APIs device property: ACPI: Make use of the new DMA Attribute APIs device property: Adding DMA Attribute APIs for Generic Devices ACPI: Adding DMA Attribute APIs for ACPI Device device property: Introducing enum dev_dma_attr ACPI: Honor ACPI _CCA attribute setting Conflicts: drivers/crypto/ccp/ccp-platform.c
2015-11-07PCI: OF: Move of_pci_dma_configure() to pci_dma_configure()Suthikulpanit, Suravee
This patch move of_pci_dma_configure() to a more generic pci_dma_configure(), which can be extended by non-OF code (e.g. ACPI). This has no functional change. Signed-off-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com> Acked-by: Rob Herring <robh+dt@kernel.org> Acked-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Hanjun Guo <hanjun.guo@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-11-07of/pci: Fix pci_get_host_bridge_device leakSuthikulpanit, Suravee
In case of error, the current code return w/o calling pci_put_host_bridge_device. This patch fixes this. Signed-off-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com> Acked-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Hanjun Guo <hanjun.guo@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-11-06Merge tag 'devicetree-for-4.4' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux Pull DeviceTree updates from Rob Herring: "A fairly large (by DT standards) pull request this time with the majority being some overdue moving DT binding docs around to consolidate similar bindings. - DT binding doc consolidation moving similar bindings to common locations. The majority of these are display related which were scattered in video/, fb/, drm/, gpu/, and panel/ directories. - Add new config option, CONFIG_OF_ALL_DTBS, to enable building all dtbs in the tree for most arches with dts files (except powerpc for now). - OF_IRQ=n fixes for user enabled CONFIG_OF. - of_node_put ref counting fixes from Julia Lawall. - Common DT binding for wakeup-source and deprecation of all similar bindings. - DT binding for PXA LCD controller. - Allow ignoring failed PCI resource translations in order to ignore 64-bit addresses on non-LPAE 32-bit kernels. - Support setting the NUMA node from DT instead of only from parent device. - Couple of earlycon DT parsing fixes for address and options" * tag 'devicetree-for-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (45 commits) MAINTAINERS: update DT binding doc locations devicetree: add Sigma Designs vendor prefix of: simplify arch_find_n_match_cpu_physical_id() function Documentation: arm: Fixed typo in socfpga fpga mgr example Documentation: devicetree: fix reference to legacy wakeup properties Documentation: devicetree: standardize/consolidate on "wakeup-source" property drivers: of: removing assignment of 0 to static variable xtensa: enable building of all dtbs mips: enable building of all dtbs metag: enable building of all dtbs metag: use common make variables for dtb builds h8300: enable building of all dtbs arm64: enable building of all dtbs arm: enable building of all dtbs arc: enable building of all dtbs arc: use common make variables for dtb builds of: add config option to enable building of all dtbs of/fdt: fix error checking for earlycon address of/overlay: add missing of_node_put of/platform: add missing of_node_put ...
2015-11-06Merge tag 'pci-v4.4-changes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci Pull PCI updates from Bjorn Helgaas: "Resource management: - Add support for Enhanced Allocation devices (Sean O. Stalley) - Add Enhanced Allocation register entries (Sean O. Stalley) - Handle IORESOURCE_PCI_FIXED when sizing resources (David Daney) - Handle IORESOURCE_PCI_FIXED when assigning resources (David Daney) - Handle Enhanced Allocation capability for SR-IOV devices (David Daney) - Clear IORESOURCE_UNSET when reverting to firmware-assigned address (Bjorn Helgaas) - Make Enhanced Allocation bitmasks more obvious (Bjorn Helgaas) - Expand Enhanced Allocation BAR output (Bjorn Helgaas) - Add of_pci_check_probe_only to parse "linux,pci-probe-only" (Marc Zyngier) - Fix lookup of linux,pci-probe-only property (Marc Zyngier) - Add sparc mem64 resource parsing for root bus (Yinghai Lu) PCI device hotplug: - pciehp: Queue power work requests in dedicated function (Guenter Roeck) Driver binding: - Add builtin_pci_driver() to avoid registration boilerplate (Paul Gortmaker) Virtualization: - Set SR-IOV NumVFs to zero after enumeration (Alexander Duyck) - Remove redundant validation of SR-IOV offset/stride registers (Alexander Duyck) - Remove VFs in reverse order if virtfn_add() fails (Alexander Duyck) - Reorder pcibios_sriov_disable() (Alexander Duyck) - Wait 1 second between disabling VFs and clearing NumVFs (Alexander Duyck) - Fix sriov_enable() error path for pcibios_enable_sriov() failures (Alexander Duyck) - Enable SR-IOV ARI Capable Hierarchy before reading TotalVFs (Ben Shelton) - Don't try to restore VF BARs (Wei Yang) MSI: - Don't alloc pcibios-irq when MSI is enabled (Joerg Roedel) - Add msi_controller setup_irqs() method for special multivector setup (Lucas Stach) - Export all remapped MSIs to sysfs attributes (Romain Bezut) - Disable MSI on SiS 761 (Ondrej Zary) AER: - Clear error status registers during enumeration and restore (Taku Izumi) Generic host bridge driver: - Fix lookup of linux,pci-probe-only property (Marc Zyngier) - Allow multiple hosts with different map_bus() methods (David Daney) - Pass starting bus number to pci_scan_root_bus() (David Daney) - Fix address window calculation for non-zero starting bus (David Daney) Altera host bridge driver: - Add msi.h to ARM Kbuild (Ley Foon Tan) - Add Altera PCIe host controller driver (Ley Foon Tan) - Add Altera PCIe MSI driver (Ley Foon Tan) APM X-Gene host bridge driver: - Remove msi_controller assignment (Duc Dang) Broadcom iProc host bridge driver: - Fix header comment "Corporation" misspelling (Florian Fainelli) - Fix code comment to match code (Ray Jui) - Remove unused struct iproc_pcie.irqs[] (Ray Jui) - Call pci_fixup_irqs() for ARM64 as well as ARM (Ray Jui) - Fix PCIe reset logic (Ray Jui) - Improve link detection logic (Ray Jui) - Update PCIe device tree bindings (Ray Jui) - Add outbound mapping support (Ray Jui) Freescale i.MX6 host bridge driver: - Return real error code from imx6_add_pcie_port() (Fabio Estevam) - Add PCIE_PHY_RX_ASIC_OUT_VALID definition (Fabio Estevam) Freescale Layerscape host bridge driver: - Remove ls_pcie_establish_link() (Minghuan Lian) - Ignore PCIe controllers in Endpoint mode (Minghuan Lian) - Factor out SCFG related function (Minghuan Lian) - Update ls_add_pcie_port() (Minghuan Lian) - Remove unused fields from struct ls_pcie (Minghuan Lian) - Add support for LS1043a and LS2080a (Minghuan Lian) - Add ls_pcie_msi_host_init() (Minghuan Lian) HiSilicon host bridge driver: - Add HiSilicon SoC Hip05 PCIe driver (Zhou Wang) Marvell MVEBU host bridge driver: - Return zero for reserved or unimplemented config space (Russell King) - Use exact config access size; don't read/modify/write (Russell King) - Use of_get_available_child_count() (Russell King) - Use for_each_available_child_of_node() to walk child nodes (Russell King) - Report full node name when reporting a DT error (Russell King) - Use port->name rather than "PCIe%d.%d" (Russell King) - Move port parsing and resource claiming to separate function (Russell King) - Fix memory leaks and refcount leaks (Russell King) - Split port parsing and resource claiming from port setup (Russell King) - Use gpio_set_value_cansleep() (Russell King) - Use devm_kcalloc() to allocate an array (Russell King) - Use gpio_desc to carry around gpio (Russell King) - Improve clock/reset handling (Russell King) - Add PCI Express root complex capability block (Russell King) - Remove code restricting accesses to slot 0 (Russell King) NVIDIA Tegra host bridge driver: - Wrap static pgprot_t initializer with __pgprot() (Ard Biesheuvel) Renesas R-Car host bridge driver: - Build pci-rcar-gen2.c only on ARM (Geert Uytterhoeven) - Build pcie-rcar.c only on ARM (Geert Uytterhoeven) - Make PCI aware of the I/O resources (Phil Edworthy) - Remove dependency on ARM-specific struct hw_pci (Phil Edworthy) - Set root bus nr to that provided in DT (Phil Edworthy) - Fix I/O offset for multiple host bridges (Phil Edworthy) ST Microelectronics SPEAr13xx host bridge driver: - Fix dw_pcie_cfg_read/write() usage (Gabriele Paoloni) Synopsys DesignWare host bridge driver: - Make "clocks" and "clock-names" optional DT properties (Bhupesh Sharma) - Use exact access size in dw_pcie_cfg_read() (Gabriele Paoloni) - Simplify dw_pcie_cfg_read/write() interfaces (Gabriele Paoloni) - Require config accesses to be naturally aligned (Gabriele Paoloni) - Make "num-lanes" an optional DT property (Gabriele Paoloni) - Move calculation of bus addresses to DRA7xx (Gabriele Paoloni) - Replace ARM pci_sys_data->align_resource with global function pointer (Gabriele Paoloni) - Factor out MSI msg setup (Lucas Stach) - Implement multivector MSI IRQ setup (Lucas Stach) - Make get_msi_addr() return phys_addr_t, not u32 (Lucas Stach) - Set up high part of MSI target address (Lucas Stach) - Fix PORT_LOGIC_LINK_WIDTH_MASK (Zhou Wang) - Revert "PCI: designware: Program ATU with untranslated address" (Zhou Wang) - Use of_pci_get_host_bridge_resources() to parse DT (Zhou Wang) - Make driver arch-agnostic (Zhou Wang) Miscellaneous: - Make x86 pci_subsys_init() static (Alexander Kuleshov) - Turn off Request Attributes to avoid Chelsio T5 Completion erratum (Hariprasad Shenai)" * tag 'pci-v4.4-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (94 commits) PCI: altera: Add Altera PCIe MSI driver PCI: hisi: Add HiSilicon SoC Hip05 PCIe driver PCI: layerscape: Add ls_pcie_msi_host_init() PCI: layerscape: Add support for LS1043a and LS2080a PCI: layerscape: Remove unused fields from struct ls_pcie PCI: layerscape: Update ls_add_pcie_port() PCI: layerscape: Factor out SCFG related function PCI: layerscape: Ignore PCIe controllers in Endpoint mode PCI: layerscape: Remove ls_pcie_establish_link() PCI: designware: Make "clocks" and "clock-names" optional DT properties PCI: designware: Make driver arch-agnostic ARM/PCI: Replace pci_sys_data->align_resource with global function pointer PCI: designware: Use of_pci_get_host_bridge_resources() to parse DT Revert "PCI: designware: Program ATU with untranslated address" PCI: designware: Move calculation of bus addresses to DRA7xx PCI: designware: Make "num-lanes" an optional DT property PCI: designware: Require config accesses to be naturally aligned PCI: designware: Simplify dw_pcie_cfg_read/write() interfaces PCI: designware: Use exact access size in dw_pcie_cfg_read() PCI: spear: Fix dw_pcie_cfg_read/write() usage ...
2015-11-04Merge tag 'driver-core-4.4-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core updates from Greg KH: "Here's the "big" driver core updates for 4.4-rc1. Primarily a bunch of debugfs updates, with a smattering of minor driver core fixes and updates as well. All have been in linux-next for a long time" * tag 'driver-core-4.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: debugfs: Add debugfs_create_ulong() of: to support binding numa node to specified device in devicetree debugfs: Add read-only/write-only bool file ops debugfs: Add read-only/write-only size_t file ops debugfs: Add read-only/write-only x64 file ops debugfs: Consolidate file mode checks in debugfs_create_*() Revert "mm: Check if section present during memory block (un)registering" driver-core: platform: Provide helpers for multi-driver modules mm: Check if section present during memory block (un)registering devres: fix a for loop bounds check CMA: fix CONFIG_CMA_SIZE_MBYTES overflow in 64bit base/platform: assert that dev_pm_domain callbacks are called unconditionally sysfs: correctly handle short reads on PREALLOC attrs. base: soc: siplify ida usage kobject: move EXPORT_SYMBOL() macros next to corresponding definitions kobject: explain what kobject's sd field is debugfs: document that debugfs_remove*() accepts NULL and error values debugfs: Pass bool pointer to debugfs_create_bool() ACPI / EC: Fix broken 64bit big-endian users of 'global_lock'
2015-10-30of: simplify arch_find_n_match_cpu_physical_id() functionMasahiro Yamada
This commit does not change the function behavior. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Rob Herring <robh@kernel.org>
2015-10-30drivers: of: removing assignment of 0 to static variableSaurabh Sengar
no need to initialise static variable with 0, hence correcting it. Signed-off-by: Saurabh Sengar <saurabh.truth@gmail.com> Signed-off-by: Rob Herring <robh@kernel.org>
2015-10-27Merge branch 'all-dtbs-v2' into for-nextRob Herring
2015-10-27of: add config option to enable building of all dtbsRob Herring
Enable building all dtb files when CONFIG_OF_ALL_DTBS is enabled. The dtbs are not really dependent on a platform being enabled or any other kernel config, so for testing coverage it is convenient to build all of the dtbs. In order to only build dtbs, this option can be used by creating an allno.config file containing: CONFIG_COMPILE_TEST=y CONFIG_OF=y CONFIG_OF_ALL_DTBS=y And then running: make KCONFIG_ALLCONFIG=1 allnoconfig make dtbs While building the dtbs themselves don't need a cross compiler, the scripts dependency does need one. This can be hacked around by commenting out "subdir-y += mod" in scripts/Makefile. Signed-off-by: Rob Herring <robh@kernel.org> Cc: Frank Rowand <frowand.list@gmail.com> Cc: Grant Likely <grant.likely@linaro.org>
2015-10-27of/fdt: fix error checking for earlycon addressMasahiro Yamada
fdt_translate_address() returns OF_BAD_ADDR on error. It is defined as a u64 value, so the variable "addr" should be defined as u64 as well. Fixes: fb11ffe74c79 ("of/fdt: add FDT serial scanning for earlycon") Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Rob Herring <robh@kernel.org>
2015-10-22of/overlay: add missing of_node_putJulia Lawall
for_each_child_of_node performs an of_node_get on each iteration, so a break out of the loop requires an of_node_put. A simplified version of the semantic patch that fixes this problem is as follows (http://coccinelle.lip6.fr): // <smpl> @@ expression root,e; local idexpression child; @@ for_each_child_of_node(root, child) { ... when != of_node_put(child) when != e = child ( return child; | + of_node_put(child); ? return ...; ) ... } // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Rob Herring <robh@kernel.org>
2015-10-22of/platform: add missing of_node_putJulia Lawall
for_each_child_of_node performs an of_node_get on each iteration, so a break out of the loop requires an of_node_put. A simplified version of the semantic patch that fixes this problem is as follows (http://coccinelle.lip6.fr): // <smpl> @@ local idexpression n; expression root,e; @@ for_each_child_of_node(root,n) { ... ( of_node_put(n); | e = n | + of_node_put(n); ? break; ) ... } ... when != n // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Rob Herring <robh@kernel.org>
2015-10-22of/irq: add missing of_node_putJulia Lawall
for_each_matching_node performs an of_node_get on each iteration, so a break out of the loop requires an of_node_put. A simplified version of the semantic patch that fixes this problem is as follows (http://coccinelle.lip6.fr): // <smpl> @@ local idexpression n; expression e; identifier l; @@ for_each_matching_node(n,...) { ... ( of_node_put(n); | e = n | + of_node_put(n); ? goto l; ) ... } ... l: ... when != n // </smpl> Besides the issue found by the semantic patch, this code also stores the device_node value in a list, which requires an of_node_get, and then cleans up the list on exit from the function, which requires an of_node_put. Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Rob Herring <robh@kernel.org>
2015-10-22of/unittest: add missing of_node_putJulia Lawall
for_each_child_of_node performs an of_node_get on each iteration, so a break out of the loop requires an of_node_put. A simplified version of the semantic patch that fixes this problem is as follows (http://coccinelle.lip6.fr): // <smpl> @@ expression root,e; local idexpression child; @@ for_each_child_of_node(root, child) { ... when != of_node_put(child) when != e = child ( return child; | + of_node_put(child); ? return ...; ) ... } // </smpl> Combine the puts into code at the end of the function, for conciseness. Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Rob Herring <robh@kernel.org>
2015-10-22Merge branch 'dt-doc-cleanup' into for-nextRob Herring
2015-10-17of: to support binding numa node to specified device in devicetreeZhen Lei
For now, in function device_add, the new device will be forced to inherit the numa node of its parent. But this will override the device's numa node which configured in devicetree. Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-16of/irq: Use the msi-map property to provide device-specific MSI domainMarc Zyngier
While msi-parent is used to point to the MSI controller that works for all the devices behind a root complex, it doesn't allow configurations where each individual device can be routed to a separate MSI controller. The msi-map property provides this flexibility (and much more), so let's add a utility function that parses it, and return the corresponding MSI domain. Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2015-10-16of/irq: Split of_msi_map_rid to reuse msi-map lookupMarc Zyngier
The msi-map property is also used to identify the MSI controller as a form of grown-up msi-parent property. Looking it up is complicated enough, and since of_msi_map_rid already implements this, let's turn it into an internal utility function. We'll put that to good use later on. Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2015-10-16of/irq: Use of_msi_get_domain instead of open-coded "msi-parent" parsingMarc Zyngier
Now that we have a function that implements the complexity of the "msi-parent" property parsing, switch to that. Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2015-10-16of/irq: Add support code for multi-parent version of "msi-parent"Marc Zyngier
Since 126b16e2ad98 ("Docs: dt: add generic MSI bindings"), the definition of "msi-parent" has evolved, while maintaining some degree of compatibility. It can now express multiple MSI controllers as parents, as well as some sideband data being communicated to the controller. This patch adds the parsing of the property, iterating over the multiple parents until a suitable irqdomain is found. It can also fallback to the original parsing if the old binding is detected. This support code gets used in the subsequent patches. Suggested-by: Robin Murphy <robin.murphy@arm.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
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