Commit Graph

724454 Commits

Author SHA1 Message Date
Linus Torvalds
99306dfc06 Merge branch 'x86-timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 timer updates from Thomas Gleixner:
 "These updates are related to TSC handling:

   - Support platforms which have synchronized TSCs but the boot CPU has
     a non zero TSC_ADJUST value, which is considered a firmware bug on
     normal systems.

     This applies to HPE/SGI UV platforms where the platform firmware
     uses TSC_ADJUST to ensure TSC synchronization across a huge number
     of sockets, but due to power on timings the boot CPU cannot be
     guaranteed to have a zero TSC_ADJUST register value.

   - Fix the ordering of udelay calibration and kvmclock_init()

   - Cleanup the udelay and calibration code"

* 'x86-timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/tsc: Mark cyc2ns_init() and detect_art() __init
  x86/platform/UV: Mark tsc_check_sync as an init function
  x86/tsc: Make CONFIG_X86_TSC=n build work again
  x86/platform/UV: Add check of TSC state set by UV BIOS
  x86/tsc: Provide a means to disable TSC ART
  x86/tsc: Drastically reduce the number of firmware bug warnings
  x86/tsc: Skip TSC test and error messages if already unstable
  x86/tsc: Add option that TSC on Socket 0 being non-zero is valid
  x86/timers: Move simple_udelay_calibration() past kvmclock_init()
  x86/timers: Make recalibrate_cpu_khz() void
  x86/timers: Move the simple udelay calibration to tsc.h
2017-11-13 19:07:38 -08:00
Linus Torvalds
3643b7e05b Merge branch 'x86-cache-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 cache resource updates from Thomas Gleixner:
 "This update provides updates to RDT:

  - A diagnostic framework for the Resource Director Technology (RDT)
    user interface (sysfs). The failure modes of the user interface are
    hard to diagnose from the error codes. An extra last command status
    file provides now sensible textual information about the failure so
    its simpler to use.

  - A few minor cleanups and updates in the RDT code"

* 'x86-cache-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/intel_rdt: Fix a silent failure when writing zero value schemata
  x86/intel_rdt: Fix potential deadlock during resctrl mount
  x86/intel_rdt: Fix potential deadlock during resctrl unmount
  x86/intel_rdt: Initialize bitmask of shareable resource if CDP enabled
  x86/intel_rdt: Remove redundant assignment
  x86/intel_rdt/cqm: Make integer rmid_limbo_count static
  x86/intel_rdt: Add documentation for "info/last_cmd_status"
  x86/intel_rdt: Add diagnostics when making directories
  x86/intel_rdt: Add diagnostics when writing the cpus file
  x86/intel_rdt: Add diagnostics when writing the tasks file
  x86/intel_rdt: Add diagnostics when writing the schemata file
  x86/intel_rdt: Add framework for better RDT UI diagnostics
2017-11-13 19:05:19 -08:00
Linus Torvalds
b18d62891a Merge branch 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 APIC updates from Thomas Gleixner:
 "This update provides a major overhaul of the APIC initialization and
  vector allocation code:

   - Unification of the APIC and interrupt mode setup which was
     scattered all over the place and was hard to follow. This also
     distangles the timer setup from the APIC initialization which
     brings a clear separation of functionality.

     Great detective work from Dou Lyiang!

   - Refactoring of the x86 vector allocation mechanism. The existing
     code was based on nested loops and rather convoluted APIC callbacks
     which had a horrible worst case behaviour and tried to serve all
     different use cases in one go. This led to quite odd hacks when
     supporting the new managed interupt facility for multiqueue devices
     and made it more or less impossible to deal with the vector space
     exhaustion which was a major roadblock for server hibernation.

     Aside of that the code dealing with cpu hotplug and the system
     vectors was disconnected from the actual vector management and
     allocation code, which made it hard to follow and maintain.

     Utilizing the new bitmap matrix allocator core mechanism, the new
     allocator and management code consolidates the handling of system
     vectors, legacy vectors, cpu hotplug mechanisms and the actual
     allocation which needs to be aware of system and legacy vectors and
     hotplug constraints into a single consistent entity.

     This has one visible change: The support for multi CPU targets of
     interrupts, which is only available on a certain subset of
     CPUs/APIC variants has been removed in favour of single interrupt
     targets. A proper analysis of the multi CPU target feature revealed
     that there is no real advantage as the vast majority of interrupts
     end up on the CPU with the lowest APIC id in the set of target CPUs
     anyway. That change was agreed on by the relevant folks and allowed
     to simplify the implementation significantly and to replace rather
     fragile constructs like the vector cleanup IPI with straight
     forward and solid code.

     Furthermore this allowed to cleanly separate the allocation details
     for legacy, normal and managed interrupts:

      * Legacy interrupts are not longer wasting 16 vectors
        unconditionally

      * Managed interrupts have now a guaranteed vector reservation, but
        the actual vector assignment happens when the interrupt is
        requested. It's guaranteed not to fail.

      * Normal interrupts no longer allocate vectors unconditionally
        when the interrupt is set up (IO/APIC init or MSI(X) enable).
        The mechanism has been switched to a best effort reservation
        mode. The actual allocation happens when the interrupt is
        requested. Contrary to managed interrupts the request can fail
        due to vector space exhaustion, but drivers must handle a fail
        of request_irq() anyway. When the interrupt is freed, the vector
        is handed back as well.

        This solves a long standing problem with large unconditional
        vector allocations for a certain class of enterprise devices
        which prevented server hibernation due to vector space
        exhaustion when the unused allocated vectors had to be migrated
        to CPU0 while unplugging all non boot CPUs.

     The code has been equipped with trace points and detailed debugfs
     information to aid analysis of the vector space"

* 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (60 commits)
  x86/vector/msi: Select CONFIG_GENERIC_IRQ_RESERVATION_MODE
  PCI/MSI: Set MSI_FLAG_MUST_REACTIVATE in core code
  genirq: Add config option for reservation mode
  x86/vector: Use correct per cpu variable in free_moved_vector()
  x86/apic/vector: Ignore set_affinity call for inactive interrupts
  x86/apic: Fix spelling mistake: "symmectic" -> "symmetric"
  x86/apic: Use dead_cpu instead of current CPU when cleaning up
  ACPI/init: Invoke early ACPI initialization earlier
  x86/vector: Respect affinity mask in irq descriptor
  x86/irq: Simplify hotplug vector accounting
  x86/vector: Switch IOAPIC to global reservation mode
  x86/vector/msi: Switch to global reservation mode
  x86/vector: Handle managed interrupts proper
  x86/io_apic: Reevaluate vector configuration on activate()
  iommu/amd: Reevaluate vector configuration on activate()
  iommu/vt-d: Reevaluate vector configuration on activate()
  x86/apic/msi: Force reactivation of interrupts at startup time
  x86/vector: Untangle internal state from irq_cfg
  x86/vector: Compile SMP only code conditionally
  x86/apic: Remove unused callbacks
  ...
2017-11-13 18:29:23 -08:00
Jaegeuk Kim
2c8a4a2823 f2fs: expose quota information in debugfs
This patch shows # of dirty pages and # of hidden quota files.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2017-11-13 18:29:01 -08:00
Yunlei He
12f9ef379a f2fs: separate nat entry mem alloc from nat_tree_lock
This patch splits memory allocation part in nat_entry to avoid lock contention.

Signed-off-by: Yunlei He <heyunlei@huawei.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2017-11-13 18:28:48 -08:00
Linus Torvalds
7d58e1c905 Merge branch 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull smp/hotplug updates from Thomas Gleixner:
 "No functional changes, just removal of obsolete and outdated defines,
  macros and documentation"

* 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  cpu/hotplug: Get rid of CPU hotplug notifier leftovers
  cpu/hotplug: Remove obsolete notifier macros
2017-11-13 18:23:19 -08:00
Andrew Lunn
ee0ab7a2b0 net: dsa: Fix dependencies on bridge
DSA now uses one of the symbols exported by the bridge,
br_vlan_enabled(). This has a stub, if the bridge is not
enabled. However, if the bridge is enabled, we cannot have DSA built
in and the bridge as a module, otherwise we get undefined symbols at
link time:

   net/dsa/port.o: In function `dsa_port_vlan_add':
   net/dsa/port.c:255: undefined reference to `br_vlan_enabled'
   net/dsa/port.o: In function `dsa_port_vlan_del':
   net/dsa/port.c:270: undefined reference to `br_vlan_enabled'

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-14 11:11:45 +09:00
Linus Torvalds
2bcc673101 Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer updates from Thomas Gleixner:
 "Yet another big pile of changes:

   - More year 2038 work from Arnd slowly reaching the point where we
     need to think about the syscalls themself.

   - A new timer function which allows to conditionally (re)arm a timer
     only when it's either not running or the new expiry time is sooner
     than the armed expiry time. This allows to use a single timer for
     multiple timeout requirements w/o caring about the first expiry
     time at the call site.

   - A new NMI safe accessor to clock real time for the printk timestamp
     work. Can be used by tracing, perf as well if required.

   - A large number of timer setup conversions from Kees which got
     collected here because either maintainers requested so or they
     simply got ignored. As Kees pointed out already there are a few
     trivial merge conflicts and some redundant commits which was
     unavoidable due to the size of this conversion effort.

   - Avoid a redundant iteration in the timer wheel softirq processing.

   - Provide a mechanism to treat RTC implementations depending on their
     hardware properties, i.e. don't inflict the write at the 0.5
     seconds boundary which originates from the PC CMOS RTC to all RTCs.
     No functional change as drivers need to be updated separately.

   - The usual small updates to core code clocksource drivers. Nothing
     really exciting"

* 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (111 commits)
  timers: Add a function to start/reduce a timer
  pstore: Use ktime_get_real_fast_ns() instead of __getnstimeofday()
  timer: Prepare to change all DEFINE_TIMER() callbacks
  netfilter: ipvs: Convert timers to use timer_setup()
  scsi: qla2xxx: Convert timers to use timer_setup()
  block/aoe: discover_timer: Convert timers to use timer_setup()
  ide: Convert timers to use timer_setup()
  drbd: Convert timers to use timer_setup()
  mailbox: Convert timers to use timer_setup()
  crypto: Convert timers to use timer_setup()
  drivers/pcmcia: omap1: Fix error in automated timer conversion
  ARM: footbridge: Fix typo in timer conversion
  drivers/sgi-xp: Convert timers to use timer_setup()
  drivers/pcmcia: Convert timers to use timer_setup()
  drivers/memstick: Convert timers to use timer_setup()
  drivers/macintosh: Convert timers to use timer_setup()
  hwrng/xgene-rng: Convert timers to use timer_setup()
  auxdisplay: Convert timers to use timer_setup()
  sparc/led: Convert timers to use timer_setup()
  mips: ip22/32: Convert timers to use timer_setup()
  ...
2017-11-13 17:56:58 -08:00
Markus Elfring
98c58f7d17 clk: kona-setup: Delete error messages for failed memory allocations
Omit extra messages for a memory allocation failure in this
function.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Acked-by: Scott Branden <scott.branden@broadcom.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-11-13 17:44:42 -08:00
Colin Ian King
658af6cbd4 ARC: clk: fix spelling mistake: "configurarion" -> "configuration"
Trivial fix to spelling mistake in dev_dbg message

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-11-13 17:44:26 -08:00
Colin Ian King
9416a5f884 clk: cdce925: remove redundant check for non-null parent_name
The check for a non-null parent_name is always true as there is an
earlier check for a null parent_name that returns -ENODEV. Remove this
redundant check and always set init.num_parents to 1.

Detected by CoverityScan CID#1309477 ("Logically dead code")

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-11-13 17:44:15 -08:00
Markus Elfring
a72da43c92 clk: versatile: Improve sizeof() usage
Replace the specification of a data structure by a pointer
dereference as the parameter for the operator "sizeof" to make
the corresponding size determination a bit safer according to the
Linux coding style convention.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-11-13 17:42:56 -08:00
Markus Elfring
e343b81e4d clk: versatile: Delete error messages for failed memory allocations
Omit extra messages for a memory allocation failure in this
function.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-11-13 17:42:44 -08:00
Markus Elfring
0b10adbae3 clk: ux500: Improve sizeof() usage
Replace the specification of data structures by pointer
dereferences as the parameter for the operator "sizeof" to make
the corresponding size determination a bit safer according to the
Linux coding style convention.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-11-13 17:42:25 -08:00
Markus Elfring
7a294dc6c8 clk: ux500: Delete error messages for failed memory allocations
Omit extra messages for a memory allocation failure in these
functions.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-11-13 17:42:06 -08:00
Markus Elfring
63b1a5d750 clk: spear: Delete error messages for failed memory allocations
Omit extra messages for a memory allocation failure in these
functions.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-11-13 17:41:53 -08:00
Markus Elfring
f80c8a29f9 clk: ti: Delete error messages for failed memory allocations
Omit extra messages for a memory allocation failure in these
functions.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-11-13 17:41:38 -08:00
Markus Elfring
7a3aad90d3 clk: mmp: Adjust checks for NULL pointers
The script “checkpatch.pl” pointed information out like the
following:

	Comparison to NULL could be written !...

Thus fix the affected source code places.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-11-13 17:41:17 -08:00
Markus Elfring
e9baa27994 clk: mmp: Use common error handling code in mmp_clk_register_mix()
Add a jump target so that a bit of exception handling can be
better reused at the end of this function.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-11-13 17:40:33 -08:00
Markus Elfring
1cc36f7300 clk: mmp: Delete error messages for failed memory allocations
Omit extra messages for a memory allocation failure in these
functions.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-11-13 17:40:11 -08:00
Markus Elfring
62c73ed5bf clk: clk-xgene: Adjust six checks for null pointers
The script “checkpatch.pl” pointed information out like the
following.

	Comparison to NULL could be written ...

Thus fix the affected source code places.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-11-13 17:40:03 -08:00
Markus Elfring
e335545f5d clk: clk-xgene: Delete error messages for failed memory allocations
Omit extra messages for a memory allocation failure in these
functions.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-11-13 17:39:47 -08:00
Markus Elfring
bb208f211c clk: clk-u300: Fix a typo in two comment lines
Add a missing character in these descriptions.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-11-13 17:39:43 -08:00
Markus Elfring
e6b332ab7d clk: clk-u300: Add some spaces for better code readability
Use space characters at some source code places according to the
Linux coding style convention.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-11-13 17:39:37 -08:00
Markus Elfring
27f8a53a9d clk: clk-u300: Improve sizeof() usage
Replace the specification of data structures by pointer
dereferences as the parameter for the operator "sizeof" to make
the corresponding size determination a bit safer according to the
Linux coding style convention.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-11-13 17:39:01 -08:00
Markus Elfring
de8cd467e4 clk: clk-u300: Delete error messages for failed memory allocations
Omit extra messages for a memory allocation failure in these
functions.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-11-13 17:38:39 -08:00
Linus Torvalds
670310dfba Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq core updates from Thomas Gleixner:
 "A rather large update for the interrupt core code and the irq chip drivers:

   - Add a new bitmap matrix allocator and supporting changes, which is
     used to replace the x86 vector allocator which comes with separate
     pull request. This allows to replace the convoluted nested loop
     allocation function in x86 with a facility which supports the
     recently added property of managed interrupts proper and allows to
     switch to a best effort vector reservation scheme, which addresses
     problems with vector exhaustion.

   - A large update to the ARM GIC-V3-ITS driver adding support for
     range selectors.

   - New interrupt controllers:
       - Meson and Meson8 GPIO
       - BCM7271 L2
       - Socionext EXIU

     If you expected that this will stop at some point, I have to
     disappoint you. There are new ones posted already. Sigh!

   - STM32 interrupt controller support for new platforms.

   - A pile of fixes, cleanups and updates to the MIPS GIC driver

   - The usual small fixes, cleanups and updates all over the place.
     Most visible one is to move the irq chip drivers Kconfig switches
     into a separate Kconfig menu"

* 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (70 commits)
  genirq: Fix type of shifting literal 1 in __setup_irq()
  irqdomain: Drop pointless NULL check in virq_debug_show_one
  genirq/proc: Return proper error code when irq_set_affinity() fails
  irq/work: Use llist_for_each_entry_safe
  irqchip: mips-gic: Print warning if inherited GIC base is used
  irqchip/mips-gic: Add pr_fmt and reword pr_* messages
  irqchip/stm32: Move the wakeup on interrupt mask
  irqchip/stm32: Fix initial values
  irqchip/stm32: Add stm32h7 support
  dt-bindings/interrupt-controllers: Add compatible string for stm32h7
  irqchip/stm32: Add multi-bank management
  irqchip/stm32: Select GENERIC_IRQ_CHIP
  irqchip/exiu: Add support for Socionext Synquacer EXIU controller
  dt-bindings: Add description of Socionext EXIU interrupt controller
  irqchip/gic-v3-its: Fix VPE activate callback return value
  irqchip: mips-gic: Make IPI bitmaps static
  irqchip: mips-gic: Share register writes in gic_set_type()
  irqchip: mips-gic: Remove gic_vpes variable
  irqchip: mips-gic: Use num_possible_cpus() to reserve IPIs
  irqchip: mips-gic: Configure EIC when CPUs come online
  ...
2017-11-13 17:33:11 -08:00
Markus Elfring
1e28733e31 clk: clk-mux: Improve a size determination in clk_hw_register_mux_table()
Replace the specification of a data structure by a pointer dereference
as the parameter for the operator "sizeof" to make the corresponding size
determination a bit safer according to the Linux coding style convention.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-11-13 17:28:39 -08:00
Markus Elfring
0b910402cf clk: clk-mux: Delete an error message for a failed memory allocation
Omit an extra message for a memory allocation failure in this function.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
[sboyd@codeaurora.org: Cleanup commit text]
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-11-13 17:28:17 -08:00
Dmitry Torokhov
c25141062a Merge branch 'next' into for-linus
Prepare input updates for 4.15 merge window.
2017-11-13 17:10:13 -08:00
Linus Torvalds
43ff2f4db9 Merge branch 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 platform updates from Ingo Molnar:
 "The main changes in this cycle were:

   - a refactoring of the early virt init code by merging 'struct
     x86_hyper' into 'struct x86_platform' and 'struct x86_init', which
     allows simplifications and also the addition of a new
     ->guest_late_init() callback. (Juergen Gross)

   - timer_setup() conversion of the UV code (Kees Cook)"

* 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/virt/xen: Use guest_late_init to detect Xen PVH guest
  x86/virt, x86/platform: Add ->guest_late_init() callback to hypervisor_x86 structure
  x86/virt, x86/acpi: Add test for ACPI_FADT_NO_VGA
  x86/virt: Add enum for hypervisors to replace x86_hyper
  x86/virt, x86/platform: Merge 'struct x86_hyper' into 'struct x86_platform' and 'struct x86_init'
  x86/platform/UV: Convert timers to use timer_setup()
2017-11-13 17:04:36 -08:00
Linus Torvalds
13e57da4a5 Merge branch 'x86-debug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 debug update from Ingo Molnar:
 "A single change enhancing stack traces by hiding wrapper function
  entries"

* 'x86-debug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/stacktrace: Avoid recording save_stack_trace() wrappers
2017-11-13 17:02:57 -08:00
Linus Torvalds
eb4d47c8ce Merge branch 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 cleanups from Ingo Molnar:
 "Two changes: Propagate const/__initconst, and use ARRAY_SIZE() some
  more"

* 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/events/amd/iommu: Make iommu_pmu const and __initconst
  x86: Use ARRAY_SIZE
2017-11-13 16:58:05 -08:00
Stefan Schake
253696ccd6 drm/vc4: Account for interrupts in flight
Synchronously disable the IRQ to make the following cancel_work_sync
invocation effective.

An interrupt in flight could enqueue further overflow mem work. As we
free the binner BO immediately following vc4_irq_uninstall this caused
a NULL pointer dereference in the work callback vc4_overflow_mem_work.

Link: https://github.com/anholt/linux/issues/114
Signed-off-by: Stefan Schake <stschake@gmail.com>
Fixes: d5b1a78a77 ("drm/vc4: Add support for drawing 3D frames.")
Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Eric Anholt <eric@anholt.net>
Link: https://patchwork.freedesktop.org/patch/msgid/1510275907-993-2-git-send-email-stschake@gmail.com
2017-11-13 16:40:15 -08:00
Dan Williams
aaa422c4c3 fs, dax: unify IOMAP_F_DIRTY read vs write handling policy in the dax core
While reviewing whether MAP_SYNC should strengthen its current guarantee
of syncing writes from the initiating process to also include
third-party readers observing dirty metadata, Dave pointed out that the
check of IOMAP_WRITE is misplaced.

The policy of what to with IOMAP_F_DIRTY should be separated from the
generic filesystem mechanism of reporting dirty metadata. Move this
policy to the fs-dax core to simplify the per-filesystem iomap handlers,
and further centralize code that implements the MAP_SYNC policy. This
otherwise should not change behavior, it just makes it easier to change
behavior in the future.

Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Cc: Ross Zwisler <ross.zwisler@linux.intel.com>
Reported-by: Dave Chinner <david@fromorbit.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2017-11-13 16:38:44 -08:00
Linus Torvalds
6a9f70b0a5 Merge branch 'x86-boot-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 boot updates from Ingo Molnar:
 "Three smaller changes:

   - clang fix

   - boot message beautification

   - unnecessary header inclusion removal"

* 'x86-boot-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/boot: Disable Clang warnings about GNU extensions
  x86/boot: Remove unnecessary #include <generated/utsrelease.h>
  x86/boot: Spell out "boot CPU" for BP
2017-11-13 16:32:30 -08:00
Dan Williams
fb2a174835 tools/testing/nvdimm: unit test clear-error commands
Validate command parsing in acpi_nfit_ctl for the clear error command.
This tests for a crash condition introduced by commit 4b27db7e26
"acpi, nfit: add support for the _LSI, _LSR, and _LSW label methods".

Cc: Vishal Verma <vishal.l.verma@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2017-11-13 15:28:41 -08:00
Rob Herring
aa25e446ce dt-bindings: usb: add #phy-cells to usb-nop-xceiv
Consumers of usb-nop-xceiv use the phy binding, but #phy-cells is missing
from the binding. This is probably because this binding predates the
common phy binding. So add #phy-cells as a required property. This should
not break any users as missing should be treated as 0 cells.

Signed-off-by: Rob Herring <robh@kernel.org>
2017-11-13 16:50:01 -06:00
Vineet Gupta
f315685161 ARCv2: boot log: updates for HS48: dual-issue, ECC, Loop Buffer
Print the hardware support for ECC, Loop Buffer as well as the runtime
enabled status

Note that unlike the existing boot printing, this one is not read from
pre-decoded hardware capabilty info cached in cpuinfo[] struct.
Instead we read the AUX regs on the spot and print it, without botherign
to save anywhere.

There is no point in saving static hardware capabilites in memory when
its use is very sporadic and non-performance critical, mainly for
/proc/cpuinfo. This gets worse in SMP, given it is per-cpu, and pretty
much exactly same across all cpus. So only info needed at runtime
(e.g. TLB geometry) needs to be cached in cpuinfo[]. So going fwd
we will start converting code to this paradigm.

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2017-11-13 14:37:39 -08:00
Ken Chalmers
e99a30de13 drm/amd/display: use num_timing_generator instead of pipe_count
The two are not necessarily the same.

Signed-off-by: Ken Chalmers <ken.chalmers@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-11-13 17:34:39 -05:00
Roman Li
6ef39a6224 drm/amd/display: use configurable FBC option in dm
Replace ENABLE_FBC macro with config option CONFIG_DRM_AMD_DC_FBC
in dm. DC code has been already updated the same way.

Signed-off-by: Roman Li <Roman.Li@amd.com>
Reviewed-by: Shirish Shankarappa <Shirish.S@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-11-13 17:33:53 -05:00
Charlene Liu
6a5a8ca9de drm/amd/display: fix AZ clock not enabled before program AZ endpoint
Signed-off-by: Charlene Liu <charlene.liu@amd.com>
Reviewed-by: Anthony Koo <Anthony.Koo@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-11-13 17:32:46 -05:00
Tobin C. Harding
a11949ec20 leaking_addresses: add SigIgn to false positives
Signal masks are false positives, we already check for SigBlk and SigCgt
but we missed SigIgn.

Add SigIgn to false positive check.

Signed-off-by: Tobin C. Harding <me@tobin.cc>
2017-11-14 09:29:27 +11:00
Tobin C. Harding
dd98c252ae leaking_addresses: add timeout on file read
Currently script can stall if we read certain files (like
/proc/kmsg). While we have a mechanism to skip these files once they are
discovered it would be nice to not stall on as yet undiscovered files of
this kind.

Set a timer before each file is parsed, warn user if timer expires.

Suggested-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Tobin C. Harding <me@tobin.cc>
2017-11-14 09:29:27 +11:00
Tobin C. Harding
62139c1242 leaking_addresses: add support for ppc64
Currently script is targeted at x86_64. We can support other
architectures by using the correct regular expressions for each
architecture.

Add the infrastructure to support multiple architectures. Add support
for ppc64.

Signed-off-by: Tobin C. Harding <me@tobin.cc>
2017-11-14 09:29:27 +11:00
Tobin C. Harding
d09bd8da88 leaking_addresses: add summary reporting options
Currently script just dumps all results found. Potentially, this risks
losing single results among multiple duplicate results. We need some
way of restricting duplicates to assist users of the script. It would
also be nice if we got a report instead of raw results.

Duplicates can be defined in various ways, instead of trying to find a
single perfect solution we can present the user with various options to
display the output. Doing so will typically lead to users wanting to
view the output multiple times. Currently we scan the kernel each time,
this is slow and unnecessary. We can expedite the process by writing the
results to file for subsequent viewing.

Add command line options to enable summary reporting, including options
to write to and read from file.

Signed-off-by: Tobin C. Harding <me@tobin.cc>
2017-11-14 09:29:27 +11:00
Tobin C. Harding
1c1e3be0bf leaking_addresses: add to exclude files/paths list
There are a couple more files that cause the script to stall.

/sys/firmware/devicetree and its symlink /proc/device-tree, reported by
Michael Ellerman.

usbmon should be skipped were ever it appears. Reported by Kees Cook

Add files to be excluded from parsing.

Signed-off-by: Tobin C. Harding <me@tobin.cc>
2017-11-14 09:29:27 +11:00
Tobin C. Harding
a284733e26 leaking_addresses: fix comment string typo
Fix typo in comment string.

Signed-off-by: Tobin C. Harding <me@tobin.cc>
2017-11-14 09:29:27 +11:00
Tobin C. Harding
ecd39dbd27 leaking_addresses: remove command line options
Currently script accepts files to skip. This was added to make running
the script faster (for repeat runs). We can remove this functionality in
preparation for adding sub commands (scan and format) to the script.

Remove command line options.

Signed-off-by: Tobin C. Harding <me@tobin.cc>
2017-11-14 09:29:27 +11:00
Tobin C. Harding
fa31a58202 leaking_addresses: remove dead/unused code
debug_arrays is not called. Also, %seen hash is not used. We should
remove unused code.

Remove dead code.

Signed-off-by: Tobin C. Harding <me@tobin.cc>
2017-11-14 09:29:27 +11:00