49157 Commits

Author SHA1 Message Date
Julien Grall
e371fd7607 xen: Implement EFI reset_system callback
When rebooting DOM0 with ACPI on ARM64, the kernel is crashing with the stack
trace [1].

This is happening because when EFI runtimes are enabled, the reset code
(see machine_restart) will first try to use EFI restart method.

However, the EFI restart code is expecting the reset_system callback to
be always set. This is not the case for Xen and will lead to crash.

The EFI restart helper is used in multiple places and some of them don't
not have fallback (see machine_power_off). So implement reset_system
callback as a call to xen_reboot when using EFI Xen.

[   36.999270] reboot: Restarting system
[   37.002921] Internal error: Attempting to execute userspace memory: 86000004 [#1] PREEMPT SMP
[   37.011460] Modules linked in:
[   37.014598] CPU: 0 PID: 1 Comm: systemd-shutdow Not tainted 4.11.0-rc1-00003-g1e248b60a39b-dirty #506
[   37.023903] Hardware name: (null) (DT)
[   37.027734] task: ffff800902068000 task.stack: ffff800902064000
[   37.033739] PC is at 0x0
[   37.036359] LR is at efi_reboot+0x94/0xd0
[   37.040438] pc : [<0000000000000000>] lr : [<ffff00000880f2c4>] pstate: 404001c5
[   37.047920] sp : ffff800902067cf0
[   37.051314] x29: ffff800902067cf0 x28: ffff800902068000
[   37.056709] x27: ffff000008992000 x26: 000000000000008e
[   37.062104] x25: 0000000000000123 x24: 0000000000000015
[   37.067499] x23: 0000000000000000 x22: ffff000008e6e250
[   37.072894] x21: ffff000008e6e000 x20: 0000000000000000
[   37.078289] x19: ffff000008e5d4c8 x18: 0000000000000010
[   37.083684] x17: 0000ffffa7c27470 x16: 00000000deadbeef
[   37.089079] x15: 0000000000000006 x14: ffff000088f42bef
[   37.094474] x13: ffff000008f42bfd x12: ffff000008e706c0
[   37.099870] x11: ffff000008e70000 x10: 0000000005f5e0ff
[   37.105265] x9 : ffff800902067a50 x8 : 6974726174736552
[   37.110660] x7 : ffff000008cc6fb8 x6 : ffff000008cc6fb0
[   37.116055] x5 : ffff000008c97dd8 x4 : 0000000000000000
[   37.121453] x3 : 0000000000000000 x2 : 0000000000000000
[   37.126845] x1 : 0000000000000000 x0 : 0000000000000000
[   37.132239]
[   37.133808] Process systemd-shutdow (pid: 1, stack limit = 0xffff800902064000)
[   37.141118] Stack: (0xffff800902067cf0 to 0xffff800902068000)
[   37.146949] 7ce0:                                   ffff800902067d40 ffff000008085334
[   37.154869] 7d00: 0000000000000000 ffff000008f3b000 ffff800902067d40 ffff0000080852e0
[   37.162787] 7d20: ffff000008cc6fb0 ffff000008cc6fb8 ffff000008c7f580 ffff000008c97dd8
[   37.170706] 7d40: ffff800902067d60 ffff0000080e2c2c 0000000000000000 0000000001234567
[   37.178624] 7d60: ffff800902067d80 ffff0000080e2ee8 0000000000000000 ffff0000080e2df4
[   37.186544] 7d80: 0000000000000000 ffff0000080830f0 0000000000000000 00008008ff1c1000
[   37.194462] 7da0: ffffffffffffffff 0000ffffa7c4b1cc 0000000000000000 0000000000000024
[   37.202380] 7dc0: ffff800902067dd0 0000000000000005 0000fffff24743c8 0000000000000004
[   37.210299] 7de0: 0000fffff2475f03 0000000000000010 0000fffff2474418 0000000000000005
[   37.218218] 7e00: 0000fffff2474578 000000000000000a 0000aaaad6b722c0 0000000000000001
[   37.226136] 7e20: 0000000000000123 0000000000000038 ffff800902067e50 ffff0000081e7294
[   37.234055] 7e40: ffff800902067e60 ffff0000081e935c ffff800902067e60 ffff0000081e9388
[   37.241973] 7e60: ffff800902067eb0 ffff0000081ea388 0000000000000000 00008008ff1c1000
[   37.249892] 7e80: ffffffffffffffff 0000ffffa7c4a79c 0000000000000000 ffff000000020000
[   37.257810] 7ea0: 0000010000000004 0000000000000000 0000000000000000 ffff0000080830f0
[   37.265729] 7ec0: fffffffffee1dead 0000000028121969 0000000001234567 0000000000000000
[   37.273651] 7ee0: ffffffffffffffff 8080000000800000 0000800000008080 feffa9a9d4ff2d66
[   37.281567] 7f00: 000000000000008e feffa9a9d5b60e0f 7f7fffffffff7f7f 0101010101010101
[   37.289485] 7f20: 0000000000000010 0000000000000008 000000000000003a 0000ffffa7ccf588
[   37.297404] 7f40: 0000aaaad6b87d00 0000ffffa7c4b1b0 0000fffff2474be0 0000aaaad6b88000
[   37.305326] 7f60: 0000fffff2474fb0 0000000001234567 0000000000000000 0000000000000000
[   37.313240] 7f80: 0000000000000000 0000000000000001 0000aaaad6b70d4d 0000000000000000
[   37.321159] 7fa0: 0000000000000001 0000fffff2474ea0 0000aaaad6b5e2e0 0000fffff2474e80
[   37.329078] 7fc0: 0000ffffa7c4b1cc 0000000000000000 fffffffffee1dead 000000000000008e
[   37.336997] 7fe0: 0000000000000000 0000000000000000 9ce839cffee77eab fafdbf9f7ed57f2f
[   37.344911] Call trace:
[   37.347437] Exception stack(0xffff800902067b20 to 0xffff800902067c50)
[   37.353970] 7b20: ffff000008e5d4c8 0001000000000000 0000000080f82000 0000000000000000
[   37.361883] 7b40: ffff800902067b60 ffff000008e17000 ffff000008f44c68 00000001081081b4
[   37.369802] 7b60: ffff800902067bf0 ffff000008108478 0000000000000000 ffff000008c235b0
[   37.377721] 7b80: ffff800902067ce0 0000000000000000 0000000000000000 0000000000000015
[   37.385643] 7ba0: 0000000000000123 000000000000008e ffff000008992000 ffff800902068000
[   37.393557] 7bc0: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
[   37.401477] 7be0: 0000000000000000 ffff000008c97dd8 ffff000008cc6fb0 ffff000008cc6fb8
[   37.409396] 7c00: 6974726174736552 ffff800902067a50 0000000005f5e0ff ffff000008e70000
[   37.417318] 7c20: ffff000008e706c0 ffff000008f42bfd ffff000088f42bef 0000000000000006
[   37.425234] 7c40: 00000000deadbeef 0000ffffa7c27470
[   37.430190] [<          (null)>]           (null)
[   37.434982] [<ffff000008085334>] machine_restart+0x6c/0x70
[   37.440550] [<ffff0000080e2c2c>] kernel_restart+0x6c/0x78
[   37.446030] [<ffff0000080e2ee8>] SyS_reboot+0x130/0x228
[   37.451337] [<ffff0000080830f0>] el0_svc_naked+0x24/0x28
[   37.456737] Code: bad PC value
[   37.459891] ---[ end trace 76e2fc17e050aecd ]---

Signed-off-by: Julien Grall <julien.grall@arm.com>

--

Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: x86@kernel.org

The x86 code has theoritically a similar issue, altought EFI does not
seem to be the preferred method. I have only built test it on x86.

This should also probably be fixed in stable tree.

    Changes in v2:
        - Implement xen_efi_reset_system using xen_reboot
        - Move xen_efi_reset_system in drivers/xen/efi.c
Signed-off-by: Juergen Gross <jgross@suse.com>
2017-05-02 12:06:50 +02:00
Julien Grall
fa12a870a9 arm/xen: Consolidate calls to shutdown hypercall in a single helper
Signed-off-by: Julien Grall <julien.grall@arm.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
2017-05-02 12:05:32 +02:00
Stefano Stabellini
e058632670 xen/arm,arm64: fix xen_dma_ops after 815dd18 "Consolidate get_dma_ops..."
The following commit:

  commit 815dd18788fe0d41899f51b91d0560279cf16b0d
  Author: Bart Van Assche <bart.vanassche@sandisk.com>
  Date:   Fri Jan 20 13:04:04 2017 -0800

      treewide: Consolidate get_dma_ops() implementations

rearranges get_dma_ops in a way that xen_dma_ops are not returned when
running on Xen anymore, dev->dma_ops is returned instead (see
arch/arm/include/asm/dma-mapping.h:get_arch_dma_ops and
include/linux/dma-mapping.h:get_dma_ops).

Fix the problem by storing dev->dma_ops in dev_archdata, and setting
dev->dma_ops to xen_dma_ops. This way, xen_dma_ops is returned naturally
by get_dma_ops. The Xen code can retrieve the original dev->dma_ops from
dev_archdata when needed. It also allows us to remove __generic_dma_ops
from common headers.

Signed-off-by: Stefano Stabellini <sstabellini@kernel.org>
Tested-by: Julien Grall <julien.grall@arm.com>
Suggested-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: <stable@vger.kernel.org>        [4.11+]
CC: linux@armlinux.org.uk
CC: catalin.marinas@arm.com
CC: will.deacon@arm.com
CC: boris.ostrovsky@oracle.com
CC: jgross@suse.com
CC: Julien Grall <julien.grall@arm.com>
2017-05-02 11:14:42 +02:00
Linus Torvalds
3fb9268e43 Merge branch 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 asm updates from Ingo Molnar:
 "The main changes in this cycle were:

   - unwinder fixes and enhancements

   - improve ftrace interaction with the unwinder

   - optimize the code footprint of WARN() and related debugging
     constructs

   - ... plus misc updates, cleanups and fixes"

* 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (24 commits)
  x86/unwind: Dump all stacks in unwind_dump()
  x86/unwind: Silence more entry-code related warnings
  x86/ftrace: Fix ebp in ftrace_regs_caller that screws up unwinder
  x86/unwind: Remove unused 'sp' parameter in unwind_dump()
  x86/unwind: Prepend hex mask value with '0x' in unwind_dump()
  x86/unwind: Properly zero-pad 32-bit values in unwind_dump()
  x86/unwind: Ensure stack pointer is aligned
  debug: Avoid setting BUGFLAG_WARNING twice
  x86/unwind: Silence entry-related warnings
  x86/unwind: Read stack return address in update_stack_state()
  x86/unwind: Move common code into update_stack_state()
  debug: Fix __bug_table[] in arch linker scripts
  debug: Add _ONCE() logic to report_bug()
  x86/debug: Define BUG() again for !CONFIG_BUG
  x86/debug: Implement __WARN() using UD0
  x86/ftrace: Use Makefile logic instead of #ifdef for compiling ftrace_*.o
  x86/ftrace: Add -mfentry support to x86_32 with DYNAMIC_FTRACE set
  x86/ftrace: Clean up ftrace_regs_caller
  x86/ftrace: Add stack frame pointer to ftrace_caller
  x86/ftrace: Move the ftrace specific code out of entry_32.S
  ...
2017-05-01 22:07:51 -07:00
Linus Torvalds
3711c94fd6 Merge branch 'efi-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull EFI updates from Ingo Molnar:
 "The main changes in this cycle were:

   - move BGRT handling to drivers/acpi so it can be shared between x86
     and ARM

   - bring the EFI stub's initrd and FDT allocation logic in line with
     the latest changes to the arm64 boot protocol

   - improvements and fixes to the EFI stub's command line parsing
     routines

   - randomize the virtual mapping of the UEFI runtime services on
     ARM/arm64

   - ... and other misc enhancements, cleanups and fixes"

* 'efi-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  efi/libstub/arm: Don't use TASK_SIZE when randomizing the RT space
  ef/libstub/arm/arm64: Randomize the base of the UEFI rt services region
  efi/libstub/arm/arm64: Disable debug prints on 'quiet' cmdline arg
  efi/libstub: Unify command line param parsing
  efi/libstub: Fix harmless command line parsing bug
  efi/arm32-stub: Allow boot-time allocations in the vmlinux region
  x86/efi: Clean up a minor mistake in comment
  efi/pstore: Return error code (if any) from efi_pstore_write()
  efi/bgrt: Enable ACPI BGRT handling on arm64
  x86/efi/bgrt: Move efi-bgrt handling out of arch/x86
  efi/arm-stub: Round up FDT allocation to mapping size
  efi/arm-stub: Correct FDT and initrd allocation rules for arm64
2017-05-01 18:20:03 -07:00
Linus Torvalds
174ddfd5df Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer updates from Thomas Gleixner:
 "The timer departement delivers:

   - more year 2038 rework

   - a massive rework of the arm achitected timer

   - preparatory patches to allow NTP correction of clock event devices
     to avoid early expiry

   - the usual pile of fixes and enhancements all over the place"

* 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (91 commits)
  timer/sysclt: Restrict timer migration sysctl values to 0 and 1
  arm64/arch_timer: Mark errata handlers as __maybe_unused
  Clocksource/mips-gic: Remove redundant non devicetree init
  MIPS/Malta: Probe gic-timer via devicetree
  clocksource: Use GENMASK_ULL in definition of CLOCKSOURCE_MASK
  acpi/arm64: Add SBSA Generic Watchdog support in GTDT driver
  clocksource: arm_arch_timer: add GTDT support for memory-mapped timer
  acpi/arm64: Add memory-mapped timer support in GTDT driver
  clocksource: arm_arch_timer: simplify ACPI support code.
  acpi/arm64: Add GTDT table parse driver
  clocksource: arm_arch_timer: split MMIO timer probing.
  clocksource: arm_arch_timer: add structs to describe MMIO timer
  clocksource: arm_arch_timer: move arch_timer_needs_of_probing into DT init call
  clocksource: arm_arch_timer: refactor arch_timer_needs_probing
  clocksource: arm_arch_timer: split dt-only rate handling
  x86/uv/time: Set ->min_delta_ticks and ->max_delta_ticks
  unicore32/time: Set ->min_delta_ticks and ->max_delta_ticks
  um/time: Set ->min_delta_ticks and ->max_delta_ticks
  tile/time: Set ->min_delta_ticks and ->max_delta_ticks
  score/time: Set ->min_delta_ticks and ->max_delta_ticks
  ...
2017-05-01 16:15:18 -07:00
Linus Torvalds
3cb6653552 Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq updates from Thomas Gleixner:
 "Nothing exciting from the irq side for this merge window:

   - a new driver for a Mediatek SoC

   - ACPI support for ARM GICV3

   - support for shared nested interrupts

   - the usual pile of fixes and updates all over te place"

* 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (28 commits)
  irqchip/mbigen: Fix return value check in mbigen_device_probe()
  irqchip/mips-gic: Replace static map with dynamic
  irqchip/mips-gic: Remove device IRQ domain
  irqchip/mips-gic: Separate IPI reservation & usage tracking
  genirq: Use irqd_get_trigger_type to compare the trigger type for shared IRQs
  genirq: Use cpumask_available() for check of cpumask variable
  cpumask: Add helper cpumask_available()
  irqchip/irq-imx-gpcv2: Clear OF_POPULATED flag
  irqchip/atmel-aic5: Handle suspend to RAM
  irqchip: Add Mediatek mtk-cirq driver
  dt-bindings: mtk-cirq: Add binding document
  irqchip/gic-v3-its: Add IORT hook for platform MSI support
  irqchip/mbigen: Add ACPI support
  irqchip/mbigen: Introduce mbigen_of_create_domain()
  irqchip/mbigen: Drop module owner
  platform-msi: Make platform_msi_create_device_domain() ACPI aware
  irqchip/gicv3-its: platform-msi: Scan MADT to create platform msi domain
  irqchip/gicv3-its: platform-msi: Refactor its_pmsi_init() to prepare for ACPI
  irqchip/gicv3-its: platform-msi: Refactor its_pmsi_prepare()
  irqchip/gic-v3-its: Keep the include header files in alphabetic order
  ...
2017-05-01 15:46:13 -07:00
Linus Torvalds
5db6db0d40 Merge branch 'work.uaccess' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull uaccess unification updates from Al Viro:
 "This is the uaccess unification pile. It's _not_ the end of uaccess
  work, but the next batch of that will go into the next cycle. This one
  mostly takes copy_from_user() and friends out of arch/* and gets the
  zero-padding behaviour in sync for all architectures.

  Dealing with the nocache/writethrough mess is for the next cycle;
  fortunately, that's x86-only. Same for cleanups in iov_iter.c (I am
  sold on access_ok() in there, BTW; just not in this pile), same for
  reducing __copy_... callsites, strn*... stuff, etc. - there will be a
  pile about as large as this one in the next merge window.

  This one sat in -next for weeks. -3KLoC"

* 'work.uaccess' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (96 commits)
  HAVE_ARCH_HARDENED_USERCOPY is unconditional now
  CONFIG_ARCH_HAS_RAW_COPY_USER is unconditional now
  m32r: switch to RAW_COPY_USER
  hexagon: switch to RAW_COPY_USER
  microblaze: switch to RAW_COPY_USER
  get rid of padding, switch to RAW_COPY_USER
  ia64: get rid of copy_in_user()
  ia64: sanitize __access_ok()
  ia64: get rid of 'segment' argument of __do_{get,put}_user()
  ia64: get rid of 'segment' argument of __{get,put}_user_check()
  ia64: add extable.h
  powerpc: get rid of zeroing, switch to RAW_COPY_USER
  esas2r: don't open-code memdup_user()
  alpha: fix stack smashing in old_adjtimex(2)
  don't open-code kernel_setsockopt()
  mips: switch to RAW_COPY_USER
  mips: get rid of tail-zeroing in primitives
  mips: make copy_from_user() zero tail explicitly
  mips: clean and reorder the forest of macros...
  mips: consolidate __invoke_... wrappers
  ...
2017-05-01 14:41:04 -07:00
Linus Torvalds
0e285e9088 Power management updates for v4.12-rc1
- Rework the intel_pstate driver's sysfs interface to make it
    more straightforward and more intuitive (Rafael Wysocki).
 
  - Make intel_pstate support all processors which advertise HWP
    (hardware-managed P-states) to the kernel in all operation modes
    and make it use the load-based P-state selection algorithm on a
    wider range of systems in the active mode (Rafael Wysocki).
 
  - Add cpufreq driver for Tegra186 (Mikko Perttunen).
 
  - Add support for Gemini Lake SoCs to intel_pstate (David Box).
 
  - Add support for MT8176 and MT817x to the Mediatek cpufreq driver
    and clean up that driver a bit (Daniel Kurtz).
 
  - Clean up intel_pstate and optimize it slightly (Rafael Wysocki).
 
  - Update the schedutil cpufreq governor, mostly to fix a couple of
    issues with it related to specific workloads, and rework its sysfs
    tunable and initialization a bit (Rafael Wysocki, Viresh Kumar).
 
  - Fix minor issues in the imx6q, dbx500 and qoriq cpufreq drivers
    (Christophe Jaillet, Irina Tirdea, Leonard Crestez, Viresh Kumar,
    YuanTian Tang).
 
  - Add file patterns for cpufreq DT bindings to MAINTAINERS (Geert
    Uytterhoeven).
 
  - Add support for "always on" power domains to the genpd (generic
    power domains) framework and clean up that code somewhat (Ulf
    Hansson, Lina Iyer, Viresh Kumar).
 
  - Fix minor issues in the powernv cpuidle driver and clean it up
    (Anton Blanchard, Gautham Shenoy).
 
  - Move the AnalyzeSuspend utility under tools/power/pm-graph/ and
    add an analogous boot-profiling utility called AnalyzeBoot to it
    (Todd Brandt).
 
  - Add rk3328 support to the rockchip-io AVS (Adaptive Voltage
    Scaling) driver (David Wu).
 
  - Fix minor issues in the cpuidle core, the intel_pstate_tracer
    utility, the devfreq framework and the PM core documentation
    (Chanwoo Choi, Doug Smythies, Johan Hovold, Marcin Nowakowski).
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Merge tag 'pm-4.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management updates from Rafael Wysocki:
 "This time the majority of changes go to the cpufreq subsystem (and to
  the intel_pstate driver in particular) and there are some updates in
  the generic power domains framework, cpuidle, tools and a couple of
  other places.

  One thing worth mentioning is that the intel_pstate's sysfs interface
  has been reworked to be more consistent with the general expectations
  of the cpufreq core and less confusing, hopefully for the better.
  Also, we have a new cpufreq driver for Tegra186 and new hardware
  support in intel_pstata and the Mediatek cpufreq driver.

  Apart from that, the AnalyzeSuspend utility for system suspend
  profiling gets a companion called AnalyzeBoot for the analogous
  profiling of system boot and they both go into one place under
  tools/power/pm-graph/.

  The rest is mostly fixes, cleanups and code reorganization.

  Specifics:

   - Rework the intel_pstate driver's sysfs interface to make it more
     straightforward and more intuitive (Rafael Wysocki).

   - Make intel_pstate support all processors which advertise HWP
     (hardware-managed P-states) to the kernel in all operation modes
     and make it use the load-based P-state selection algorithm on a
     wider range of systems in the active mode (Rafael Wysocki).

   - Add cpufreq driver for Tegra186 (Mikko Perttunen).

   - Add support for Gemini Lake SoCs to intel_pstate (David Box).

   - Add support for MT8176 and MT817x to the Mediatek cpufreq driver
     and clean up that driver a bit (Daniel Kurtz).

   - Clean up intel_pstate and optimize it slightly (Rafael Wysocki).

   - Update the schedutil cpufreq governor, mostly to fix a couple of
     issues with it related to specific workloads, and rework its sysfs
     tunable and initialization a bit (Rafael Wysocki, Viresh Kumar).

   - Fix minor issues in the imx6q, dbx500 and qoriq cpufreq drivers
     (Christophe Jaillet, Irina Tirdea, Leonard Crestez, Viresh Kumar,
     YuanTian Tang).

   - Add file patterns for cpufreq DT bindings to MAINTAINERS (Geert
     Uytterhoeven).

   - Add support for "always on" power domains to the genpd (generic
     power domains) framework and clean up that code somewhat (Ulf
     Hansson, Lina Iyer, Viresh Kumar).

   - Fix minor issues in the powernv cpuidle driver and clean it up
     (Anton Blanchard, Gautham Shenoy).

   - Move the AnalyzeSuspend utility under tools/power/pm-graph/ and add
     an analogous boot-profiling utility called AnalyzeBoot to it (Todd
     Brandt).

   - Add rk3328 support to the rockchip-io AVS (Adaptive Voltage
     Scaling) driver (David Wu).

   - Fix minor issues in the cpuidle core, the intel_pstate_tracer
     utility, the devfreq framework and the PM core documentation
     (Chanwoo Choi, Doug Smythies, Johan Hovold, Marcin Nowakowski)"

* tag 'pm-4.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (56 commits)
  PM / runtime: Document autosuspend-helper side effects
  PM / runtime: Fix autosuspend documentation
  tools: power: pm-graph: Package makefile and man pages
  tools: power: pm-graph: AnalyzeBoot v2.0
  tools: power: pm-graph: AnalyzeSuspend v4.6
  cpufreq: Add Tegra186 cpufreq driver
  cpufreq: imx6q: Fix error handling code
  cpufreq: imx6q: Set max suspend_freq to avoid changes during suspend
  cpufreq: imx6q: Fix handling EPROBE_DEFER from regulator
  cpuidle: powernv: Avoid a branch in the core snooze_loop() loop
  cpuidle: powernv: Don't continually set thread priority in snooze_loop()
  cpuidle: powernv: Don't bounce between low and very low thread priority
  cpuidle: cpuidle-cps: remove unused variable
  tools/power/x86/intel_pstate_tracer: Adjust directory ownership
  cpufreq: schedutil: Use policy-dependent transition delays
  cpufreq: schedutil: Reduce frequencies slower
  PM / devfreq: Move struct devfreq_governor to devfreq directory
  PM / Domains: Ignore domain-idle-states that are not compatible
  cpufreq: intel_pstate: Add support for Gemini Lake
  powernv-cpuidle: Validate DT property array size
  ...
2017-05-01 14:09:46 -07:00
Linus Torvalds
89d1cf89c8 * An EDAC driver for Cavium ThunderX RAS IP (Sergey Temerkhanov)
* Removal of DRAM error reporting through PCI SERR NMI (Borislav Petkov)
 
 * Misc small fixes (Jan Glauber, Thor Thayer)
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Merge tag 'edac_for_4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp

Pull EDAC updates from Borislav Petkov:

 - an EDAC driver for Cavium ThunderX RAS IP (Sergey Temerkhanov)

 - removal of DRAM error reporting through PCI SERR NMI (Borislav
   Petkov)

 - misc small fixes (Jan Glauber, Thor Thayer)

* tag 'edac_for_4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp:
  EDAC, ghes: Do not enable it by default
  EDAC: Rename report status accessors
  EDAC: Delete edac_stub.c
  EDAC: Update Kconfig help text
  EDAC: Remove EDAC_MM_EDAC
  EDAC: Issue tracepoint only when it is defined
  ACPI/extlog: Add EDAC dependency
  EDAC: Move edac_op_state to edac_mc.c
  EDAC: Remove edac_err_assert
  EDAC: Get rid of edac_handlers
  x86/nmi, EDAC: Get rid of DRAM error reporting thru PCI SERR NMI
  EDAC, highbank: Align Makefile directives
  EDAC, thunderx: Remove unused code
  EDAC, thunderx: Change LMC index calculation
  EDAC, altera: Fix peripheral warnings for Cyclone5
  EDAC, thunderx: Fix L2C MCI interrupt disable
  EDAC, thunderx: Add Cavium ThunderX EDAC driver
2017-05-01 11:36:00 -07:00
Rafael J. Wysocki
0807ee0f52 Merge branch 'pm-cpufreq'
* pm-cpufreq: (37 commits)
  cpufreq: Add Tegra186 cpufreq driver
  cpufreq: imx6q: Fix error handling code
  cpufreq: imx6q: Set max suspend_freq to avoid changes during suspend
  cpufreq: imx6q: Fix handling EPROBE_DEFER from regulator
  cpufreq: schedutil: Use policy-dependent transition delays
  cpufreq: schedutil: Reduce frequencies slower
  cpufreq: intel_pstate: Add support for Gemini Lake
  cpufreq: intel_pstate: Eliminate intel_pstate_get_min_max()
  cpufreq: intel_pstate: Do not walk policy->cpus
  cpufreq: intel_pstate: Introduce pid_in_use()
  cpufreq: intel_pstate: Drop struct cpu_defaults
  cpufreq: intel_pstate: Move cpu_defaults definitions
  cpufreq: intel_pstate: Add update_util callback to pstate_funcs
  cpufreq: intel_pstate: Use different utilization update callbacks
  cpufreq: intel_pstate: Modify check in intel_pstate_update_status()
  cpufreq: intel_pstate: Drop driver_registered variable
  cpufreq: intel_pstate: Skip unnecessary PID resets on init
  cpufreq: intel_pstate: Set HWP sampling interval once
  cpufreq: intel_pstate: Clean up intel_pstate_busy_pid_reset()
  cpufreq: intel_pstate: Fold intel_pstate_reset_all_pid() into the caller
  ...
2017-04-28 23:14:00 +02:00
Al Viro
2fefc97b21 HAVE_ARCH_HARDENED_USERCOPY is unconditional now
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-04-26 12:11:06 -04:00
Al Viro
701cac61d0 CONFIG_ARCH_HAS_RAW_COPY_USER is unconditional now
all architectures converted

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-04-26 12:11:01 -04:00
Al Viro
eea86b637a Merge branches 'uaccess.alpha', 'uaccess.arc', 'uaccess.arm', 'uaccess.arm64', 'uaccess.avr32', 'uaccess.bfin', 'uaccess.c6x', 'uaccess.cris', 'uaccess.frv', 'uaccess.h8300', 'uaccess.hexagon', 'uaccess.ia64', 'uaccess.m32r', 'uaccess.m68k', 'uaccess.metag', 'uaccess.microblaze', 'uaccess.mips', 'uaccess.mn10300', 'uaccess.nios2', 'uaccess.openrisc', 'uaccess.parisc', 'uaccess.powerpc', 'uaccess.s390', 'uaccess.score', 'uaccess.sh', 'uaccess.sparc', 'uaccess.tile', 'uaccess.um', 'uaccess.unicore32', 'uaccess.x86' and 'uaccess.xtensa' into work.uaccess 2017-04-26 12:06:59 -04:00
Thomas Gleixner
7a258ff04f Merge branch 'linus' into irq/core
Pick up upstream fixes to avoid conflicts with pending patches.
2017-04-20 16:05:13 +02:00
Linus Torvalds
7395ca0f91 ARM: SoC fixes
Again, a batch that's been sitting a couple of weeks, mostly because I
 anticipated a bit more material but it didn't show up -- which is good.
 
 These are all your garden variety fixes for ARM platforms. Most visible issue
 fixed here is probably the SMP reset issue on OMAP, the rest are minor stuff.
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Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Olof Johansson:
 "Again, a batch that's been sitting a couple of weeks, mostly because
  I anticipated a bit more material but it didn't show up -- which is
  good.

  These are all your garden variety fixes for ARM platforms.

  The most visible issue fixed here is probably the SMP reset issue on
  OMAP, the rest are minor stuff"

* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  arm64: allwinner: a64: add pmu0 regs for USB PHY
  ARM: OMAP2+: omap_device: Sync omap_device and pm_runtime after probe defer
  reset: add exported __reset_control_get, return NULL if optional
  ARM: orion5x: only call into phylib when available
  ARM: omap2+: Revert omap-smp.c changes resetting CPU1 during boot
  ARM: dts: am335x-evmsk: adjust mmc2 param to allow suspend
  ARM: dts: ti: fix PCI bus dtc warnings
  ARM: dts: am335x-baltos: disable EEE for Atheros 8035 PHY
  ARM: dts: OMAP3: Fix MFG ID EEPROM
  ARM: sun8i: a33: add operating-points-v2 property to all nodes
  ARM: sun8i: a33: remove highest OPP to fix CPU crashes
2017-04-16 12:38:17 -07:00
Olof Johansson
e2647b6de7 Regression fix for omap interconnect code for deferred probe.
Without this fix we can get PM related warnings for devices that
 use deferred probe. If necessary, this fix can wait for the
 v4.12 merge window no problem.
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Merge tag 'omap-for-v4.11/fixes-rc6-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes

Regression fix for omap interconnect code for deferred probe.
Without this fix we can get PM related warnings for devices that
use deferred probe. If necessary, this fix can wait for the
v4.12 merge window no problem.

* tag 'omap-for-v4.11/fixes-rc6-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP2+: omap_device: Sync omap_device and pm_runtime after probe defer
  ARM: omap2+: Revert omap-smp.c changes resetting CPU1 during boot
  ARM: dts: am335x-evmsk: adjust mmc2 param to allow suspend
  ARM: dts: ti: fix PCI bus dtc warnings
  ARM: dts: am335x-baltos: disable EEE for Atheros 8035 PHY
  ARM: dts: OMAP3: Fix MFG ID EEPROM

Signed-off-by: Olof Johansson <olof@lixom.net>
2017-04-16 11:52:26 -07:00
Rafael J. Wysocki
c97ad0fc4f Merge back cpufreq core changes for v4.12. 2017-04-15 00:23:36 +02:00
Borislav Petkov
e3c4ff6d8c EDAC: Remove EDAC_MM_EDAC
Move all the EDAC core functionality behind CONFIG_EDAC and get rid of
that indirection. Update defconfigs which had it.

While at it, fix dependencies such that EDAC depends on RAS for the
tracepoints.

Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: Chris Metcalf <cmetcalf@mellanox.com>
Cc: linux-edac@vger.kernel.org
2017-04-10 17:14:41 +02:00
Linus Torvalds
462e9a355e Merge branch 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm
Pull ARM fixes from Russell King:
 "A number of ARM fixes:

   - prevent oopses caused by dma_get_sgtable() and declared DMA
     coherent memory

   - fix boot failure on nommu caused by ID_PFR1 access

   - a number of kprobes fixes from Jon Medhurst and Masami Hiramatsu"

* 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm:
  ARM: 8665/1: nommu: access ID_PFR1 only if CPUID scheme
  ARM: dma-mapping: disallow dma_get_sgtable() for non-kernel managed memory
  arm: kprobes: Align stack to 8-bytes in test code
  arm: kprobes: Fix the return address of multiple kretprobes
  arm: kprobes: Skip single-stepping in recursing path if possible
  arm: kprobes: Allow to handle reentered kprobe on single-stepping
2017-04-09 09:05:25 -07:00
Olof Johansson
5fa22a6e1a mvebu fixes for 4.11 (part 1)
Fix build of the board code for orion5x when some parts are configured
 as module.
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Merge tag 'mvebu-fixes-4.11-1' of git://git.infradead.org/linux-mvebu into fixes

mvebu fixes for 4.11 (part 1)

Fix build of the board code for orion5x when some parts are configured
as module.

* tag 'mvebu-fixes-4.11-1' of git://git.infradead.org/linux-mvebu:
  ARM: orion5x: only call into phylib when available

Signed-off-by: Olof Johansson <olof@lixom.net>
2017-04-07 16:50:16 -07:00
Olof Johansson
12d28f94eb Allwinner fixes for 4.11, bis
Two fixes for the recent A33 cpufreq support, and one to fix a missing
 register in the A64 USB PHY node.
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Merge tag 'sunxi-fixes-for-4.11-2' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into fixes

Allwinner fixes for 4.11, bis

Two fixes for the recent A33 cpufreq support, and one to fix a missing
register in the A64 USB PHY node.

* tag 'sunxi-fixes-for-4.11-2' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux:
  arm64: allwinner: a64: add pmu0 regs for USB PHY
  ARM: sun8i: a33: add operating-points-v2 property to all nodes
  ARM: sun8i: a33: remove highest OPP to fix CPU crashes

Signed-off-by: Olof Johansson <olof@lixom.net>
2017-04-07 16:49:43 -07:00
Alexander Kochetkov
500d0aa918 ARM: dts: rockchip: disable arm-global-timer for rk3188
The clocksource and the sched_clock provided by the arm_global_timer
are quite unstable because their rates depend on the cpu frequency.

On the other side, the arm_global_timer has a higher rating than the
rockchip_timer, it will be selected by default by the time framework
while we want to use the stable rockchip clocksource.

Let's disable the arm_global_timer in order to have the rockchip
clocksource selected by default.

Signed-off-by: Alexander Kochetkov <al.kochet@gmail.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
2017-04-07 16:23:07 +02:00
Alexander Kochetkov
627988a66a ARM: dts: rockchip: Add timer entries to rk3188 SoC
The patch add two timers to all rk3188 based boards.

The first timer is from alive subsystem and it act as a backup
for the local timers at sleep time. It act the same as other
SoC rockchip timers already present in kernel.

The second timer is from CPU subsystem and act as replacement
for the arm-global-timer clocksource and sched clock. It run
at stable frequency 24MHz.

Signed-off-by: Alexander Kochetkov <al.kochet@gmail.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
2017-04-07 16:23:06 +02:00
Alexander Kochetkov
b72af3462d ARM: dts: rockchip: Update compatible property for rk322x timer
Property set to '"rockchip,rk3228-timer", "rockchip,rk3288-timer"'
to match devicetree bindings.

Signed-off-by: Alexander Kochetkov <al.kochet@gmail.com>
Suggested-by: Heiko Stübner <heiko@sntech.de>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2017-04-07 16:23:05 +02:00
Linus Walleij
390d2d490b irqchip/faraday: Replace moxa with ftintc010
The Moxa Art interrupt controller is very very likely just an instance
of the Faraday FTINTC010 interrupt controller from Faraday Technology.
An indication would be its close association with the FA526 ARM core
and the fact that the register layout is the same.

The implementation in irq-moxart.c can probably be right off replaced
with the irq-ftintc010.c driver by adding a compatible string, selecting
this irqchip from the machine and run.

As a bonus we have an irqchip driver supporting high/low and
rising/falling edges for the Moxa Art, and shared code with the Gemini
platform.

Acked-by: Olof Johansson <olof@lixom.net>
Tested-by: Jonas Jensen <jonas.jensen@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2017-04-07 10:36:30 +01:00
Al Viro
fccfb99508 Merge commit 'b4fb8f66f1ae2e167d06c12d018025a8d4d3ba7e' into uaccess.ia64
backmerge of mainline ia64 fix
2017-04-06 19:35:03 -04:00
Al Viro
054838bc01 Merge commit 'fc69910f329d' into uaccess.mips
backmerge of a build fix from mainline
2017-04-06 02:07:33 -04:00
Russell King
3872fe83a2 Merge branch 'kprobe-fixes' of https://git.linaro.org/people/tixy/kernel into fixes 2017-04-05 23:43:03 +01:00
Radim Krčmář
6fd6410311 KVM/ARM Fixes for v4.11-rc6
Fixes include:
  - Fix a problem with GICv3 userspace save/restore
  - Clarify GICv2 userspace save/restore ABI
  - Be more careful in clearing GIC LRs
  - Add missing synchronization primitive to our MMU handling code
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Merge tag 'kvm-arm-for-v4.11-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm

From: Christoffer Dall <cdall@linaro.org>

KVM/ARM Fixes for v4.11-rc6

Fixes include:
 - Fix a problem with GICv3 userspace save/restore
 - Clarify GICv2 userspace save/restore ABI
 - Be more careful in clearing GIC LRs
 - Add missing synchronization primitive to our MMU handling code
2017-04-05 16:27:47 +02:00
Ard Biesheuvel
138728dd4e efi/arm-stub: Correct FDT and initrd allocation rules for arm64
On arm64, we have made some changes over the past year to the way the
kernel itself is allocated and to how it deals with the initrd and FDT.
This patch brings the allocation logic in the EFI stub in line with that,
which is necessary because the introduction of KASLR has created the
possibility for the initrd to be allocated in a place where the kernel
may not be able to map it. (This is mostly a theoretical scenario, since
it only affects systems where the physical memory footprint exceeds the
size of the linear mapping.)

Since we know the kernel itself will be covered by the linear mapping,
choose a suitably sized window (i.e., based on the size of the linear
region) covering the kernel when allocating memory for the initrd.

The FDT may be anywhere in memory on arm64 now that we map it via the
fixmap, so we can lift the address restriction there completely.

Tested-by: Richard Ruigrok <rruigrok@codeaurora.org>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Jeffrey Hugo <jhugo@codeaurora.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Matt Fleming <matt@codeblueprint.co.uk>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-efi@vger.kernel.org
Link: http://lkml.kernel.org/r/20170404160245.27812-4-ard.biesheuvel@linaro.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-04-05 12:27:23 +02:00
Dave Gerlach
04abaf07f6 ARM: OMAP2+: omap_device: Sync omap_device and pm_runtime after probe defer
Starting from commit 5de85b9d57ab ("PM / runtime: Re-init runtime PM
states at probe error and driver unbind") pm_runtime core now changes
device runtime_status back to after RPM_SUSPENDED after a probe defer.
Certain OMAP devices make use of "ti,no-idle-on-init" flag which causes
omap_device_enable to be called during the BUS_NOTIFY_ADD_DEVICE event
during probe, along with pm_runtime_set_active.

This call to pm_runtime_set_active typically will prevent a call to
pm_runtime_get in a driver probe function from re-enabling the
omap_device. However, in the case of a probe defer that happens before
the driver probe function is able to run, such as a missing pinctrl
states defer, pm_runtime_reinit will set the device as RPM_SUSPENDED and
then once driver probe is actually able to run, pm_runtime_get will see
the device as suspended and call through to the omap_device layer,
attempting to enable the already enabled omap_device and causing errors
like this:

omap-gpmc 50000000.gpmc: omap_device: omap_device_enable() called from
invalid state 1
omap-gpmc 50000000.gpmc: use pm_runtime_put_sync_suspend() in driver?

We can avoid this error by making sure the pm_runtime status of a device
matches the omap_device state before a probe attempt. By extending the
omap_device bus notifier to act on the BUS_NOTIFY_BIND_DRIVER event we
can check if a device is enabled in omap_device but with a pm_runtime
status of RPM_SUSPENDED and once again mark the device as RPM_ACTIVE to
avoid a second incorrect call to omap_device_enable.

Fixes: 5de85b9d57ab ("PM / runtime: Re-init runtime PM states at probe
error and driver unbind")
Tested-by: Franklin S Cooper Jr. <fcooper@ti.com>
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-04-04 08:49:56 -07:00
Christoffer Dall
5b0d2cc280 KVM: arm64: Ensure LRs are clear when they should be
We currently have some code to clear the list registers on GICv3, but we
never call this code, because the caller got nuked when removing the old
vgic.  We also used to have a similar GICv2 part, but that got lost in
the process too.

Let's reintroduce the logic for GICv2 and call the logic when we
initialize the use of hypervisors on the CPU, for example when first
loading KVM or when exiting a low power state.

Reviewed-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2017-04-04 14:33:58 +02:00
Suzuki K Poulose
8b3405e345 kvm: arm/arm64: Fix locking for kvm_free_stage2_pgd
In kvm_free_stage2_pgd() we don't hold the kvm->mmu_lock while calling
unmap_stage2_range() on the entire memory range for the guest. This could
cause problems with other callers (e.g, munmap on a memslot) trying to
unmap a range. And since we have to unmap the entire Guest memory range
holding a spinlock, make sure we yield the lock if necessary, after we
unmap each PUD range.

Fixes: commit d5d8184d35c9 ("KVM: ARM: Memory virtualization setup")
Cc: stable@vger.kernel.org # v3.10+
Cc: Paolo Bonzini <pbonzin@redhat.com>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Christoffer Dall <christoffer.dall@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
[ Avoid vCPU starvation and lockup detector warnings ]
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Christoffer Dall <cdall@linaro.org>
2017-04-04 14:33:50 +02:00
Peter Zijlstra
b5effd3815 debug: Fix __bug_table[] in arch linker scripts
The kbuild test robot reported this build failure on a number
of architectures:

 >         make.cross ARCH=arm
 >    lib/lib.a(bug.o): In function `find_bug':
 > >> lib/bug.c:135: undefined reference to `__start___bug_table'
 > >> lib/bug.c:135: undefined reference to `__stop___bug_table'

Caused by:

  19d436268dde ("debug: Add _ONCE() logic to report_bug()")

Which moved the BUG_TABLE from RO_DATA_SECTION() to RW_DATA_SECTION(),
but a number of architectures don't use RW_DATA_SECTION(), so they
ended up with no __bug_table[] ...

Ideally all those would use RW_DATA_SECTION() in their linker scripts,
but that's for another day.

Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: kbuild test robot <fengguang.wu@intel.com>
Cc: kbuild-all@01.org
Cc: tipbuild@zytor.com
Link: http://lkml.kernel.org/r/20170330154927.o6qmgfp4bdhrajbm@hirez.programming.kicks-ass.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-04-03 10:22:40 +02:00
Al Viro
bee3f412d6 Merge branch 'parisc-4.11-3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux into uaccess.parisc 2017-04-02 10:33:48 -04:00
Linus Torvalds
0fc04f9113 sound fixes for 4.11-rc5
At this time, most of changes are for ASoC, while we got one fix for
 yet another race of ALSA sequencer core and a usual HD-audio quirk.
 
 The ASoC changes are mostly small and device-specific fixes.  A
 slightly large volume is seen in sun8i-codec, which is a new code in
 4.11, and we'd like to fix user-visible stuff before the official 4.1
 release.
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Merge tag 'sound-4.11-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "At this time, most of changes are for ASoC, while we got one fix for
  yet another race of ALSA sequencer core and a usual HD-audio quirk.

  The ASoC changes are mostly small and device-specific fixes. A
  slightly large volume is seen in sun8i-codec, which is a new code in
  4.11, and we'd like to fix user-visible stuff before the official 4.1
  release"

* tag 'sound-4.11-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (27 commits)
  ALSA: hda - fix a problem for lineout on a Dell AIO machine
  ASoC: simple-card: fix simple_dai clk lookup
  ASoC: STI: Fix reader substream pointer set
  ALSA: seq: Fix race during FIFO resize
  ARM: dts: sun8i: Update audio-routing with renamed widgets
  ASoC: sun8i-codec: Convert to use SND_SOC_DAPM_AIF_IN
  ASoC: sun8i-codec: Fix space on audio-routing widget
  ASoC: sun8i-codec: Update mixer to use SOC_DAPM_DOUBLE
  ASoC: sun8i-codec: Remove analog "HP" widget
  ASoC: rt5665: fix wrong shift rt5665_if2_1_adc_in_enum
  ASoC: rt5665: fix define of RT5665_HP_DRIVER_5X
  ASoC: rcar: dma: remove unnecessary "volatile"
  ASoC: rcar: clear DE bit only in PDMACHCR when it stops
  ASoC: rsnd: fix sound route path when using SRC6/SRC9
  ASoC: don't dereference NULL pcm_{new,free}
  ASoC: rt5665: CLKDET is also a power of ASRC
  ASoC: rt5665: Vref3 is necessary for Mono Amp
  ASoC: rt5665: increase LDO level
  ASoC: rt5665: fix getting wrong work handler container
  ASoC: atmel-classd: fix audio clock rate
  ...
2017-03-31 11:53:49 -07:00
Takashi Iwai
9dfcce42b0 ASoC: Fixes for v4.11
A relatively large pile of fixes for mainline, the first since the merge
 window.  The biggest block of changes here by volume is the sun8i-codec
 set, the driver was newly added in the merge window but it was realized
 that renaming some of the user visible controls was required so these
 are being pushed for v4.11 to avoid the original code appearing in a
 release.  Otherwise it's all fairly standard bugfix stuff.
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Merge tag 'asoc-fix-v4.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Fixes for v4.11

A relatively large pile of fixes for mainline, the first since the merge
window.  The biggest block of changes here by volume is the sun8i-codec
set, the driver was newly added in the merge window but it was realized
that renaming some of the user visible controls was required so these
are being pushed for v4.11 to avoid the original code appearing in a
release.  Otherwise it's all fairly standard bugfix stuff.
2017-03-30 20:03:25 +02:00
Arnd Bergmann
d43e85b7d7 ARM: orion5x: only call into phylib when available
Board code cannot call mdiobus_register_board_info() when phylib
or mdio_device is a loadable module:

arch/arm/plat-orion/common.o: In function `orion_ge00_switch_init':
:(.init.text+0x474): undefined reference to `mdiobus_register_board_info'

I had a number of ideas for how this could be solved, but after the MDIO
code got split out from PHYLIB it has gotten too hard, so I'm basically
giving up, and only call the mdiobus_register_board_info() function
if the MDIO layer is built-in to avoid the link error. This is similar
to how we handle PHY registration on other ARM platforms.

Fixes: 90eff9096c01 ("net: phy: Allow splitting MDIO bus/device support from PHYs")
Fixes: 648ea0134069 ("net: phy: Allow pre-declaration of MDIO devices")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
2017-03-30 17:30:39 +02:00
afzal mohammed
3cc070c1c8 ARM: 8665/1: nommu: access ID_PFR1 only if CPUID scheme
Greg upon trying to boot no-MMU Kernel on ARM926EJ reported boot
failure. He root caused it to ID_PFR1 access introduced by the
commit mentioned in the fixes tag below.

All CP15 processors need not have processor feature registers, only
for architectures defined by CPUID scheme would have it. Hence check
for it before accessing processor feature register, ID_PFR1.

Fixes: f8300a0b5de0 ("ARM: 8647/2: nommu: dynamic exception base address setting")
Reported-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com>
Tested-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2017-03-29 17:38:41 +01:00
Russell King
916a008b4b ARM: dma-mapping: disallow dma_get_sgtable() for non-kernel managed memory
dma_get_sgtable() tries to create a scatterlist table containing valid
struct page pointers for the coherent memory allocation passed in to it.

However, memory can be declared via dma_declare_coherent_memory(), or
via other reservation schemes which means that coherent memory is not
guaranteed to be backed by struct pages.  In such cases, the resulting
scatterlist table contains pointers to invalid pages, which causes
kernel oops later.

This patch adds detection of such memory, and refuses to create a
scatterlist table for such memory.

Reported-by: Shuah Khan <shuahkhan@gmail.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2017-03-29 17:36:23 +01:00
Al Viro
4de5b63e76 arm: switch to RAW_COPY_USER
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-03-28 18:23:22 -04:00
Al Viro
0f9b38cd79 arm: switch to generic extable.h
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-03-28 18:23:22 -04:00
Al Viro
db68ce10c4 new helper: uaccess_kernel()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-03-28 16:43:25 -04:00
Tony Lindgren
351b7c4907 ARM: omap2+: Revert omap-smp.c changes resetting CPU1 during boot
Commit 3251885285e1 ("ARM: OMAP4+: Reset CPU1 properly for kexec") started
unconditionally resetting CPU1 because of a kexec boot issue I was seeing
earlier on omap4 when doing kexec boot between two different kernel
versions.

This caused issues on some systems. We should only reset CPU1 as a last
resort option, and try to avoid it where possible. Doing an unconditional
CPU1 reset causes issues for example when booting a bootloader configured
secure OS running on CPU1 as reported by Andrew F. Davis <afd@ti.com>.

We can't completely remove the reset of CPU1 as it would break kexec
booting from older kernels. But we can limit the CPU1 reset to cases
where CPU1 is wrongly parked within the memory area used by the booting
kernel. Then later on we can add support for parking CPU1 for kexec out
of the SDRAM back to bootrom.

So let's first fix the regression reported by Andrew by making CPU1 reset
conditional. To do this, we need to:

1. Save configured AUX_CORE_BOOT_1 for later

2. Modify AUX_CORE_BOOT_0 reading code to for HS SoCs to return
   the whole register instead of the CPU mask

3. Check if CPU1 is wrongly parked into the booting kernel by the
   previous kernel and reset if needed

Fixes: 3251885285e1 ("ARM: OMAP4+: Reset CPU1 properly for kexec")
Reported-by: Andrew F. Davis <afd@ti.com>
Cc: Andrew F. Davis <afd@ti.com>
Cc: Keerthy <j-keerthy@ti.com>
Cc: Russell King <rmk+kernel@armlinux.org.uk>
Cc: Santosh Shilimkar <ssantosh@kernel.org>
Cc: Tero Kristo <t-kristo@ti.com>
Tested-by: Keerthy <j-keerthy@ti.com>
Tested-by: Andrew F. Davis <afd@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-03-27 10:10:42 -07:00
Reizer, Eyal
9bcf53f34a ARM: dts: am335x-evmsk: adjust mmc2 param to allow suspend
mmc2 used for wl12xx was missing the keep-power-in suspend
parameter. As a result the board couldn't reach suspend state.

Signed-off-by: Eyal Reizer <eyalr@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-03-27 10:09:08 -07:00
Linus Torvalds
2056b7c7df ARM: SoC fixes for v4.11
- A couple of OMAP 4.11 regression fixes, including a boot regression for
   SmartReflex, hypervisor mode in thumb2 mode, and reference counting of
   device nodes
 
 - A fix for cpu_idle on at91
 
 - Minor DT fixes on across several platforms:
   sunxi, bcm53xx, at91, nsp, ns2, ux500, omap
 
 - A fix to correct an API change in the reset controllers
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Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Arnd Bergmann:

 - a couple of OMAP 4.11 regression fixes, including a boot regression
   for SmartReflex, hypervisor mode in thumb2 mode, and reference
   counting of device nodes

 - a fix for cpu_idle on at91

 - minor DT fixes on across several platforms: sunxi, bcm53xx, at91,
   nsp, ns2, ux500, omap

 - a fix to correct an API change in the reset controllers

* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (22 commits)
  arm64: dts: NS2: Add dma-coherent to relevant DT entries
  reset: fix optional reset_control_get stubs to return NULL
  ARM: sun8i: a23/a33: drop bl_en_pin GPIO pinmux in reference design DTSI
  ARM: dts: sun7i: lamobo-r1: Fix CPU port RGMII settings
  ARM: dts: NSP: GPIO reboot open-source
  ARM: at91: pm: cpu_idle: switch DDR to power-down mode
  ARM: dts: add the AB8500 clocks to the device tree
  ARM: dts: imx6sx-udoo-neo: Fix reboot hang
  ARM: sun8i: Fix the mali clock rate
  ARM: dts: BCM5301X: Correct GIC_PPI interrupt flags
  ARM: dts: BCM5301X: Fix memory start address
  ARM: dts: BCM5301X: Fix UARTs on bcm953012k
  Revert "ARM: at91/dt: sama5d2: Use new compatible for ohci node"
  ARM: OMAP2+: Release device node after it is no longer needed.
  ARM: OMAP2+: Fix device node reference counts
  ARM: OMAP2+: Remove legacy gpmc-nand.c
  ARM: OMAP2+: gpmc-onenand: propagate error on initialization failure
  ARM: dts: am335x-pcm953: Fix legacy wakeup source binding
  ARM: omap2plus_defconfig: Enable INPUT_MOUSEDEV as loadable modules
  ARM: dts: am57xx-idk: tpic2810 is on I2C bus, not SPI
  ...
2017-03-24 14:32:21 -07:00
Arnd Bergmann
bf3f53089c This pull request contains Broadcom ARM-based SoCs Device Tree fixes for 4.11,
please pull the following:
 
 - Jon fixes a reboot issue on most Northstar Plus platforms by adding the
   "open-source" property to the "gpio-restart" Device Tree nodes
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Merge tag 'arm-soc/for-4.11/devicetree-fixes-2' of http://github.com/Broadcom/stblinux into fixes

Pull "Broadcom arm Device Tree fixes for 4.11 (part 2)" from Florian Fainelli:

This pull request contains Broadcom ARM-based SoCs Device Tree fixes for 4.11,
please pull the following:

- Jon fixes a reboot issue on most Northstar Plus platforms by adding the
  "open-source" property to the "gpio-restart" Device Tree nodes

* tag 'arm-soc/for-4.11/devicetree-fixes-2' of http://github.com/Broadcom/stblinux:
  ARM: dts: NSP: GPIO reboot open-source
2017-03-24 17:49:40 +01:00
Rob Herring
7d79f6098d ARM: dts: ti: fix PCI bus dtc warnings
dtc recently added PCI bus checks. Fix these warnings.

Signed-off-by: Rob Herring <robh@kernel.org>
Cc: "Benoît Cousson" <bcousson@baylibre.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: linux-omap@vger.kernel.org
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-03-23 11:43:32 -07:00
Yegor Yefremov
ce2899428e ARM: dts: am335x-baltos: disable EEE for Atheros 8035 PHY
Though cpsw doesn't support EEE feature, Atheros 8035 provides
automatic EEE support that is enabled by default. This causes
occasional link drops when link partner also announces EEE support.
These link drops occur on both 100Mbit/s and 1000Mbit/s speeds.
So disable EEE advertising completely.

Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-03-23 11:42:55 -07:00