Commit Graph

738217 Commits

Author SHA1 Message Date
Monk Liu
fd430a702d drm/amdgpu: skip ECC for SRIOV in gmc late_init
Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-02-28 15:20:22 -05:00
Tom St Denis
82d0ece957 drm/amd/amdgpu: Correct VRAM width for APUs with GMC9
DDR4 has a 64-bit width not 128-bits.  It was reporting
twice the width.  Tested with my Ryzen 2400G.

Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-02-28 15:19:21 -05:00
Monk Liu
f812dec57d drm/amdgpu: fix&cleanups for wb_clear
fix:
should do right shift on wb before clearing

cleanups:
1,should memset all wb buffer
2,set max wb number to 128 (total 4KB) is big enough

Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-02-28 15:19:03 -05:00
Emily Deng
8d333fe0ad drm/amdgpu: Correct sdma_v4 get_wptr(v2)
the original method will change the wptr value in wb.
v2:
furthur cleanup

Signed-off-by: Emily Deng <Emily.Deng@amd.com>
Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-02-28 15:17:57 -05:00
Eric Huang
a0aaa03062 drm/amd/powerplay: fix power over limit on Fiji
power containment disabled only on Fiji and compute
power profile. It violates PCIe spec and may cause power
supply failed. Enabling it will fix the issue, even the
fix will drop performance of some compute tests.

Signed-off-by: Eric Huang <JinHuiEric.Huang@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2018-02-28 15:17:11 -05:00
James Zhu
8014e2d3fd drm/amdgpu:Fixed wrong emit frame size for enc
Emit frame size should match with corresponding function,
uvd_v6_0_enc_ring_emit_vm_flush has 5 amdgpu_ring_write

Signed-off-by: James Zhu <James.Zhu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-02-28 15:16:48 -05:00
Monk Liu
a4ef6edc8e drm/amdgpu: move WB_FREE to correct place
WB_FREE should be put after all engines's hw_fini
done, otherwise the invalid wptr/rptr_addr would still
be used by engines which trigger abnormal bugs.

This fixes couple DMAR reading error in host side for SRIOV
after guest kmd is unloaded.

Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-02-28 15:16:32 -05:00
Monk Liu
9f51943c2a drm/amdgpu: only flush hotplug work without DC
since hotplug_work is initialized under the case of
no dc support

Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-02-28 15:15:39 -05:00
Shirish S
d6b6669762 drm/amd/display: check for ipp before calling cursor operations
Currently all cursor related functions are made to all
pipes that are attached to a particular stream.
This is not applicable to pipes that do not have cursor plane
initialised like underlay.
Hence this patch allows cursor related operations on a pipe
only if ipp in available on that particular pipe.

The check is added to set_cursor_position & set_cursor_attribute.

Signed-off-by: Shirish S <shirish.s@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2018-02-28 15:14:41 -05:00
Linus Torvalds
c02be2334e Changes since last update:
- Fix some compiler warnings
 - Fix block rservations for transactions created during log recovery
 - Fix resource leaks when respecifying mount options
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Merge tag 'xfs-4.16-fixes-2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux

Pull xfs fixes from Darrick Wong:

 - fix some compiler warnings

 - fix block reservations for transactions created during log recovery

 - fix resource leaks when respecifying mount options

* tag 'xfs-4.16-fixes-2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
  xfs: fix potential memory leak in mount option parsing
  xfs: reserve blocks for refcount / rmap log item recovery
  xfs: use memset to initialize xfs_scrub_agfl_info
2018-02-28 11:40:51 -08:00
Juergen Gross
47b02f4c62 x86/xen: add tty0 and hvc0 as preferred consoles for dom0
Today the tty0 and hvc0 consoles are added as a preferred consoles for
pv domUs only. As this requires a boot parameter for getting dom0
messages per default, add them for dom0, too.

Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
2018-02-28 20:20:13 +01:00
Jason Andryuk
c2d2e6738a xen-netfront: Fix hang on device removal
A toolstack may delete the vif frontend and backend xenstore entries
while xen-netfront is in the removal code path.  In that case, the
checks for xenbus_read_driver_state would return XenbusStateUnknown, and
xennet_remove would hang indefinitely.  This hang prevents system
shutdown.

xennet_remove must be able to handle XenbusStateUnknown, and
netback_changed must also wake up the wake_queue for that state as well.

Fixes: 5b5971df3b ("xen-netfront: remove warning when unloading module")

Signed-off-by: Jason Andryuk <jandryuk@gmail.com>
Cc: Eduardo Otubo <otubo@redhat.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
2018-02-28 20:20:08 +01:00
Roger Pau Monne
910f8befdf xen/pirq: fix error path cleanup when binding MSIs
Current cleanup in the error path of xen_bind_pirq_msi_to_irq is
wrong. First of all there's an off-by-one in the cleanup loop, which
can lead to unbinding wrong IRQs.

Secondly IRQs not bound won't be freed, thus leaking IRQ numbers.

Note that there's no need to differentiate between bound and unbound
IRQs when freeing them, __unbind_from_irq will deal with both of them
correctly.

Fixes: 4892c9b4ad ("xen: add support for MSI message groups")
Reported-by: Hooman Mirhadi <mirhadih@amazon.com>
Signed-off-by: Roger Pau Monné <roger.pau@citrix.com>
Reviewed-by: Amit Shah <aams@amazon.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
2018-02-28 20:20:01 +01:00
Jens Axboe
468f098734 Merge branch 'for-jens' of git://git.infradead.org/nvme into for-linus
Pull NVMe fixes from Keith for 4.16-rc.

* 'for-jens' of git://git.infradead.org/nvme:
  nvmet: fix PSDT field check in command format
  nvme-multipath: fix sysfs dangerously created links
  nvme-pci: Fix nvme queue cleanup if IRQ setup fails
  nvmet-loop: use blk_rq_payload_bytes for sgl selection
  nvme-rdma: use blk_rq_payload_bytes instead of blk_rq_bytes
  nvme-fabrics: don't check for non-NULL module in nvmf_register_transport
2018-02-28 12:18:58 -07:00
Linus Torvalds
b1aad6824a A single fix for a memory leak regression in the dma-debug code.
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Merge tag 'dma-mapping-4.16-3' of git://git.infradead.org/users/hch/dma-mapping

Pull dma-mapping fix from Christoph Hellwig:
 "A single fix for a memory leak regression in the dma-debug code"

* tag 'dma-mapping-4.16-3' of git://git.infradead.org/users/hch/dma-mapping:
  dma-debug: fix memory leak in debug_dma_alloc_coherent
2018-02-28 11:13:08 -08:00
Tvrtko Ursulin
fa89782b4f drm/i915: Make global seqno known in i915_gem_request_execute tracepoint
Commit fe49789fab ("drm/i915: Deconstruct execute fence") re-arranged
the code and moved the i915_gem_request_execute tracepoint to before the
global seqno is assigned to the request.

We need to move the tracepoint a bit later so this information is once
again available.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Fixes: fe49789fab ("drm/i915: Deconstruct execute fence")
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: intel-gfx@lists.freedesktop.org
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20180220104742.565-1-tvrtko.ursulin@linux.intel.com
(cherry picked from commit 158863fb50)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2018-02-28 11:10:48 -08:00
Chris Wilson
e659d14ed4 drm/i915: Clear the in-use marker on execbuf failure
If we fail to unbind the vma (due to a signal on an active buffer that
needs to be moved for the next execbuf), then we need to clear the
persistent tracking state we setup for this execbuf.

Fixes: c7c6e46f91 ("drm/i915: Convert execbuf to use struct-of-array packing for critical fields")
Testcase: igt/gem_fenced_exec_thrash/no-spare-fences-busy*
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: <stable@vger.kernel.org> # v4.14+
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180219140144.24004-1-chris@chris-wilson.co.uk
(cherry picked from commit ed2f353232)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2018-02-28 11:10:43 -08:00
Mahesh Kumar
1b0008450f drm/i915/cnl: Fix PORT_TX_DW5/7 register address
Register Address for CNL_PORT_DW5_LN0_D is 0x162E54, but current code is
defining it as 0x162ED4. Similarly for CNL_PORT_DW7_LN0_D register address
is defined 0x162EDC instead of 0x162E5C, fix it.

Signed-off-by: Mahesh Kumar <mahesh1.kumar@intel.com>
Fixes: 04416108cc ("drm/i915/cnl: Add registers related to voltage swing sequences.")
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180215095643.3844-2-mahesh1.kumar@intel.com
(cherry picked from commit e103962611)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2018-02-28 11:10:37 -08:00
Jani Nikula
72a6d72c2c drm/i915/audio: fix check for av_enc_map overflow
Turns out -1 >= ARRAY_SIZE() is always true. Move the bounds check where
we know pipe >= 0 and next to the array indexing where it makes most
sense.

Fixes: 9965db26ac ("drm/i915: Check for fused or unused pipes")
Fixes: 0b7029b7e4 ("drm/i915: Check for fused or unused pipes")
Cc: <stable@vger.kernel.org> # v4.10+
Cc: Mika Kahola <mika.kahola@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: intel-gfx@lists.freedesktop.org
Reviewed-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Reviewed-by: Mika Kahola <mika.kahola@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180214173840.25360-1-jani.nikula@intel.com
(cherry picked from commit cdb3db8542)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2018-02-28 11:10:32 -08:00
Daniele Ceraolo Spurio
b1b13780ab drm/i915: Fix rsvd2 mask when out-fence is returned
GENMASK_ULL wants the high bit of the mask first. The current value
cancels the in-fence when an out-fence is returned.

Fixes: fec0445caa ("drm/i915: Support explicit fencing for execbuf")
Testcase: igt/gem_exec_fence/keep-in-fence*
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20180214191827.8465-1-daniele.ceraolospurio@intel.com
Cc: <stable@vger.kernel.org> # v4.12+
(cherry picked from commit b6a88e4a80)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2018-02-28 11:10:28 -08:00
Li RongQing
3000974616 Documentation, x86, resctrl: Make text and sample command match
The text says "Move the cpus 4-7 over to p1", but the sample command writes
to p0/cpus.

Signed-off-by: Li RongQing <lirongqing@baidu.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: fenghua.yu@intel.com
Cc: linux-doc@vger.kernel.org
Link: https://lkml.kernel.org/r/1519712271-8802-1-git-send-email-lirongqing@baidu.com
2018-02-28 19:59:05 +01:00
Geert Uytterhoeven
7998a4ecc6 dt-bindings/irqchip/renesas-irqc: Document R-Car M3-N support
Document support for the Interrupt Controller for Externel Devices
(INTC-EX) in the Renesas M3-N (r8a77965) SoC.

No driver update is needed.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: devicetree@vger.kernel.org
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: linux-renesas-soc@vger.kernel.org
Cc: Rob Herring <robh+dt@kernel.org>
Link: https://lkml.kernel.org/r/1519658712-22910-1-git-send-email-geert%2Brenesas@glider.be
2018-02-28 19:55:43 +01:00
Eugeniy Paltsev
a29a252754 ARC: setup cpu possible mask according to possible-cpus dts property
As we have option in u-boot to set CPU mask for running linux,
we want to pass information to kernel about CPU cores should
be brought up. So we patch kernel dtb in u-boot to set
possible-cpus property.

This also allows us to have correctly setuped MCIP debug mask.

Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2018-02-28 10:45:32 -08:00
Eugeniy Paltsev
f3205de98d ARC: mcip: update MCIP debug mask when the new cpu came online
As of today we use hardcoded MCIP debug mask, so if we launch
kernel via debugger and kick fever cores than HW has all cpus
hang at the momemt of setup MCIP debug mask.

So update MCIP debug mask when the new cpu came online, instead of
use hardcoded MCIP debug mask.

Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2018-02-28 10:45:31 -08:00
Eugeniy Paltsev
07423d00a2 ARC: mcip: halt GFRC counter when ARC cores halt
In SMP systems, GFRC is used for clocksource. However by default the
counter keeps running even when core is halted (say when debugging via a
JTAG debugger). This confuses Linux timekeeping and triggers flase RCU stall
splat such as below:

| [ARCLinux]# while true; do ./shm_open_23-1.run-test ; done
| Running with 1000 processes for 1000 objects
| hrtimer: interrupt took 485060 ns
|
| create_cnt: 1000
| Running with 1000 processes for 1000 objects
| [ARCLinux]# INFO: rcu_preempt self-detected stall on CPU
|       2-...: (1 GPs behind) idle=a01/1/0 softirq=135770/135773 fqs=0
| INFO: rcu_preempt detected stalls on CPUs/tasks:
| 	0-...: (1 GPs behind) idle=71e/0/0 softirq=135264/135264 fqs=0
|	2-...: (1 GPs behind) idle=a01/1/0 softirq=135770/135773 fqs=0
|	3-...: (1 GPs behind) idle=4e0/0/0 softirq=134304/134304 fqs=0
|	(detected by 1, t=13648 jiffies, g=31493, c=31492, q=1)

Starting from ARC HS v3.0 it's possible to tie GFRC to state of up-to 4
ARC cores with help of GFRC's CORE register where we set a mask for
cores which state we need to rely on.

We update cpu mask every time new cpu came online instead of using
hardcoded one or using mask generated from "possible_cpus" as we
want it set correctly even if we run kernel on HW which has fewer cores
than expected (or we launch kernel via debugger and kick fever cores
than HW has)

Note that GFRC halts when all cores have halted and thus relies on
programming of Inter-Core-dEbug register to halt all cores when one
halts.

Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
[vgupta: rewrote changelog]
2018-02-28 10:45:31 -08:00
Vineet Gupta
701eda01cb ARCv2: boot log: fix HS48 release number
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2018-02-28 10:45:30 -08:00
Linus Torvalds
e04d368f47 DeviceTree fixes for 4.16:
- Update i.MX thermal binding example to use current binding, not the
   deprecated one
 
 - Move arm-charlcd to auxdisplay/
 
 - Fix misspelling of "debounce-interval"
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Merge tag 'devicetree-fixes-for-4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull DeviceTree fixes from Rob Herring:

 - update i.MX thermal binding example to use current binding, not the
   deprecated one

 - move arm-charlcd to auxdisplay/

 - fix misspelling of "debounce-interval"

* tag 'devicetree-fixes-for-4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
  dt-bindings: power: Fix "debounce-interval" property misspelling
  auxdisplay: Move arm-charlcd binding to correct folder
  dt-bindings: thermal: imx: update the binding to new method
2018-02-28 10:39:43 -08:00
Sebastian Panceac
028091f82e x86/platform/intel-mid: Handle Intel Edison reboot correctly
When the Intel Edison module is powered with 3.3V, the reboot command makes
the module stuck.  If the module is powered at a greater voltage, like 4.4V
(as the Edison Mini Breakout board does), reboot works OK.

The official Intel Edison BSP sends the IPCMSG_COLD_RESET message to the
SCU by default. The IPCMSG_COLD_BOOT which is used by the upstream kernel
is only sent when explicitely selected on the kernel command line.

Use IPCMSG_COLD_RESET unconditionally which makes reboot work independent
of the power supply voltage.

[ tglx: Massaged changelog ]

Fixes: bda7b072de ("x86/platform/intel-mid: Implement power off sequence")
Signed-off-by: Sebastian Panceac <sebastian@resin.io>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/1519810849-15131-1-git-send-email-sebastian@resin.io
2018-02-28 18:17:18 +01:00
Max Gurtovoy
bffd2b6167 nvmet: fix PSDT field check in command format
PSDT field section according to NVM_Express-1.3:
"This field specifies whether PRPs or SGLs are used for any data
transfer associated with the command. PRPs shall be used for all
Admin commands for NVMe over PCIe. SGLs shall be used for all Admin
and I/O commands for NVMe over Fabrics. This field shall be set to
01b for NVMe over Fabrics 1.0 implementations.

Suggested-by: Idan Burstein <idanb@mellanox.com>
Signed-off-by: Max Gurtovoy <maxg@mellanox.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Keith Busch <keith.busch@intel.com>
2018-02-28 10:10:22 -07:00
Josh Poimboeuf
1402fd8ed7 objtool: Fix another switch table detection issue
Continue the switch table detection whack-a-mole.  Add a check to
distinguish KASAN data reads from switch data reads.  The switch jump
tables in .rodata have relocations associated with them.

This fixes the following warning:

  crypto/asymmetric_keys/x509_cert_parser.o: warning: objtool: x509_note_pkey_algo()+0xa4: sibling call from callable instruction with modified stack frame

Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Arnd Bergmann <arnd@arndb.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lkml.kernel.org/r/d7c8853022ad47d158cb81e953a40469fc08a95e.1519784382.git.jpoimboe@redhat.com
2018-02-28 16:03:19 +01:00
Juergen Gross
71c208dd54 x86/xen: Zero MSR_IA32_SPEC_CTRL before suspend
Older Xen versions (4.5 and before) might have problems migrating pv
guests with MSR_IA32_SPEC_CTRL having a non-zero value. So before
suspending zero that MSR and restore it after being resumed.

Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
Cc: stable@vger.kernel.org
Cc: xen-devel@lists.xenproject.org
Cc: boris.ostrovsky@oracle.com
Link: https://lkml.kernel.org/r/20180226140818.4849-1-jgross@suse.com
2018-02-28 16:03:19 +01:00
Jan Beulich
22636f8c95 x86/asm: Add instruction suffixes to bitops
Omitting suffixes from instructions in AT&T mode is bad practice when
operand size cannot be determined by the assembler from register
operands, and is likely going to be warned about by upstream gas in the
future (mine does already). Add the missing suffixes here. Note that for
64-bit this means some operations change from being 32-bit to 64-bit.

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/5A93F98702000078001ABACC@prv-mh.provo.novell.com
2018-02-28 15:18:41 +01:00
Jan Beulich
a368d7fd2a x86/entry/64: Add instruction suffix
Omitting suffixes from instructions in AT&T mode is bad practice when
operand size cannot be determined by the assembler from register
operands, and is likely going to be warned about by upstream gas in the
future (mine does already). Add the single missing suffix here.

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/5A93F96902000078001ABAC8@prv-mh.provo.novell.com
2018-02-28 15:18:40 +01:00
Kees Cook
cb097be703 x86/refcounts: Switch to UD2 for exceptions
As done in commit 3b3a371cc9 ("x86/debug: Use UD2 for WARN()"), this
switches to UD2 from UD0 to keep disassembly readable.

Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20180225165056.GA11719@beast
2018-02-28 15:18:40 +01:00
Vineet Gupta
a4f538573c clocksource/drivers/arc_timer: Update some comments
TIMER0 interrupt ACK is different for ARC700 and HS3x cores.

This came to light in some internal discussions and it is nice to have this
documented rather than digging up the PRM (Programmers Reference Manual).

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Vineet Gupta <Vineet.Gupta1@synopsys.com>
Cc: linux-snps-arc@lists.infradead.org
Link: https://lkml.kernel.org/r/1519241491-12570-1-git-send-email-vgupta@synopsys.com
2018-02-28 13:55:14 +01:00
Felix Fietkau
5753405e27 clocksource/drivers/mips-gic-timer: Use correct shift count to extract data
__gic_clocksource_init() extracts the GIC_CONFIG_COUNTBITS field from
read_gic_config() by right shifting the register value. The shift count is
determined by the most significant bit (__fls) of the bitmask which is
wrong as it shifts out the complete bitfield.

Use the least significant bit (__ffs) instead to shift the bitfield down to
bit 0.

Fixes: e07127a077 ("clocksource: mips-gic-timer: Use new GIC accessor functions")
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: daniel.lezcano@linaro.org
Cc: paul.burton@imgtec.com
Link: https://lkml.kernel.org/r/20180228095610.50341-1-nbd@nbd.name
2018-02-28 13:55:14 +01:00
Baegjae Sung
9bd82b1a44 nvme-multipath: fix sysfs dangerously created links
If multipathing is enabled, each NVMe subsystem creates a head
namespace (e.g., nvme0n1) and multiple private namespaces
(e.g., nvme0c0n1 and nvme0c1n1) in sysfs. When creating links for
private namespaces, links of head namespace are used, so the
namespace creation order must be followed (e.g., nvme0n1 ->
nvme0c1n1). If the order is not followed, links of sysfs will be
incomplete or kernel panic will occur.

The kernel panic was:
  kernel BUG at fs/sysfs/symlink.c:27!
  Call Trace:
    nvme_mpath_add_disk_links+0x5d/0x80 [nvme_core]
    nvme_validate_ns+0x5c2/0x850 [nvme_core]
    nvme_scan_work+0x1af/0x2d0 [nvme_core]

Correct order
Context A     Context B
nvme0n1
nvme0c0n1     nvme0c1n1

Incorrect order
Context A     Context B
              nvme0c1n1
nvme0n1
nvme0c0n1

The nvme_mpath_add_disk (for creating head namespace) is called
just before the nvme_mpath_add_disk_links (for creating private
namespaces). In nvme_mpath_add_disk, the first context acquires
the lock of subsystem and creates a head namespace, and other
contexts do nothing by checking GENHD_FL_UP of a head namespace
after waiting to acquire the lock. We verified the code with or
without multipathing using three vendors of dual-port NVMe SSDs.

Signed-off-by: Baegjae Sung <baegjae@gmail.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Keith Busch <keith.busch@intel.com>
2018-02-28 02:46:48 -07:00
Peter Rosin
377999caf7 dt-bindings: at24: sort manufacturers alphabetically
Makes them easier to find.

Signed-off-by: Peter Rosin <peda@axentia.se>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
2018-02-28 09:56:23 +01:00
Takashi Iwai
c77a6edb6d ALSA: x86: Fix potential crash at error path
When LPE audio driver gets some error at probing, it may lead to a
crash because of canceling the pending work in hdmi_lpe_audio_free(),
since some of ports might be still not initialized.

For assuring the proper free of each port, initialize all ports at the
beginning of the probe.

Fixes: b4eb0d522f ("ALSA: x86: Split snd_intelhad into card and PCM specific structures")
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-02-28 08:46:00 +01:00
Takashi Iwai
350144069a ALSA: x86: Fix missing spinlock and mutex initializations
The commit change for supporting the multiple ports moved involved
some code shuffling, and there the initializations of spinlock and
mutex in snd_intelhad object were dropped mistakenly.

This patch adds the missing initializations again for each port.

Fixes: b4eb0d522f ("ALSA: x86: Split snd_intelhad into card and PCM specific structures")
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-02-28 08:40:26 +01:00
Richard Fitzgerald
5a23699a39 ALSA: control: Fix memory corruption risk in snd_ctl_elem_read
The patch "ALSA: control: code refactoring for ELEM_READ/ELEM_WRITE
operations" introduced a potential for kernel memory corruption due
to an incorrect if statement allowing non-readable controls to fall
through and call the get function. For TLV controls a driver can omit
SNDRV_CTL_ELEM_ACCESS_READ to ensure that only the TLV get function
can be called. Instead the normal get() can be invoked unexpectedly
and as the driver expects that this will only be called for controls
<= 512 bytes, potentially try to copy >512 bytes into the 512 byte
return array, so corrupting kernel memory.

The problem is an attempt to refactor the snd_ctl_elem_read function
to invert the logic so that it conditionally aborted if the control
is unreadable instead of conditionally executing. But the if statement
wasn't inverted correctly.

The correct inversion of

    if (a && !b)

is
    if (!a || b)

Fixes: becf9e5d55 ("ALSA: control: code refactoring for ELEM_READ/ELEM_WRITE operations")
Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-02-28 08:15:56 +01:00
Dave Airlie
219b3b22df Merge branch 'drm-fixes-4.16' of git://people.freedesktop.org/~agd5f/linux into drm-fixes
- Powerplay fixes for cards with no displays attached
- Couple of DC fixes
- radeon workaround for PPC64

* 'drm-fixes-4.16' of git://people.freedesktop.org/~agd5f/linux:
  drm/radeon: insist on 32-bit DMA for Cedar on PPC64/PPC64LE
  drm/amd/display: VGA black screen from s3 when attached to hook
  drm/amdgpu: Unify the dm resume calls into one
  drm/amdgpu: Add a missing lock for drm_mm_takedown
  Revert "drm/radeon/pm: autoswitch power state when in balanced mode"
  drm/amd/powerplay/smu7: allow mclk switching with no displays
  drm/amd/powerplay/vega10: allow mclk switching with no displays
2018-02-28 11:39:52 +10:00
Stefan Wahren
2944866ac5 ARM: dts: bcm283x: Move arm-pmu out of soc node
The ARM PMU doesn't have a reg address, so fix the following DTC warning
(requires W=1):
Node /soc/arm-pmu missing or empty reg/ranges property

Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
2018-02-27 16:42:09 -08:00
Stefan Wahren
808b7de86a ARM: dts: bcm283x: Fix unit address of local_intc
This patch fixes the following DTC warning (requires W=1):
Node /soc/local_intc simple-bus unit address format error, expected "40000000"

Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
2018-02-27 16:41:50 -08:00
Florian Fainelli
0a5aff64f2 ARM: dts: NSP: Fix amount of RAM on BCM958625HR
Jon attempted to fix the amount of RAM on the BCM958625HR in commit
c53beb47f6 ("ARM: dts: NSP: Correct RAM amount for BCM958625HR board")
but it seems like we tripped over some poorly documented schematics.

The top-level page of the schematics says the board has 2GB, but when
you end-up scrolling to page 6, you see two chips of 4GBit (512MB) but
what the bootloader really initializes only 512MB, any attempt to use
more than that results in data aborts. Fix this again back to 512MB.

Fixes: c53beb47f6 ("ARM: dts: NSP: Correct RAM amount for BCM958625HR board")
Acked-by: Jon Mason <jon.mason@broadcom.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
2018-02-27 16:38:00 -08:00
Gustavo A. R. Silva
0979962f54 nbd: fix return value in error handling path
It seems that the proper value to return in this particular case is the
one contained into variable new_index instead of ret.

Addresses-Coverity-ID: 1465148 ("Copy-paste error")
Fixes: e46c7287b1 ("nbd: add a basic netlink interface")
Reviewed-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-02-27 15:51:37 -07:00
Linus Torvalds
f3afe530d6 Merge branch 'fixes-v4.16-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
Pull seccomp fix from James Morris:
 "This disables the seccomp samples when cross compiling.

  We've seen too many build issues here, so it's best to just disable
  it, especially since they're just the samples"

* 'fixes-v4.16-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
  samples/seccomp: do not compile when cross compiled
2018-02-27 14:02:39 -08:00
James Morris
757744eb5f - do not build samples when cross compiling (Michal Hocko)
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Merge tag 'seccomp-v4.16-rc4' of https://git.kernel.org/pub/scm/linux/kernel/git/kees/linux into fixes-v4.16-rc4

- do not build samples when cross compiling (Michal Hocko)

From Kees: "This disables the seccomp samples when cross compiling. We're seen too many build issues here, so
it's best to just disable it, especially since they're just the samples."
2018-02-27 10:39:29 -08:00
Tang Junhui
60eb34ec55 bcache: fix kcrashes with fio in RAID5 backend dev
Kernel crashed when run fio in a RAID5 backend bcache device, the call
trace is bellow:
[  440.012034] kernel BUG at block/blk-ioc.c:146!
[  440.012696] invalid opcode: 0000 [#1] SMP NOPTI
[  440.026537] CPU: 2 PID: 2205 Comm: md127_raid5 Not tainted 4.15.0 #8
[  440.027441] Hardware name: HP ProLiant MicroServer Gen8, BIOS J06 07/16
/2015
[  440.028615] RIP: 0010:put_io_context+0x8b/0x90
[  440.029246] RSP: 0018:ffffa8c882b43af8 EFLAGS: 00010246
[  440.029990] RAX: 0000000000000000 RBX: ffffa8c88294fca0 RCX: 0000000000
0f4240
[  440.031006] RDX: 0000000000000004 RSI: 0000000000000286 RDI: ffffa8c882
94fca0
[  440.032030] RBP: ffffa8c882b43b10 R08: 0000000000000003 R09: ffff949cb8
0c1700
[  440.033206] R10: 0000000000000104 R11: 000000000000b71c R12: 00000000000
01000
[  440.034222] R13: 0000000000000000 R14: ffff949cad84db70 R15: ffff949cb11
bd1e0
[  440.035239] FS:  0000000000000000(0000) GS:ffff949cba280000(0000) knlGS:
0000000000000000
[  440.060190] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  440.084967] CR2: 00007ff0493ef000 CR3: 00000002f1e0a002 CR4: 00000000001
606e0
[  440.110498] Call Trace:
[  440.135443]  bio_disassociate_task+0x1b/0x60
[  440.160355]  bio_free+0x1b/0x60
[  440.184666]  bio_put+0x23/0x30
[  440.208272]  search_free+0x23/0x40 [bcache]
[  440.231448]  cached_dev_write_complete+0x31/0x70 [bcache]
[  440.254468]  closure_put+0xb6/0xd0 [bcache]
[  440.277087]  request_endio+0x30/0x40 [bcache]
[  440.298703]  bio_endio+0xa1/0x120
[  440.319644]  handle_stripe+0x418/0x2270 [raid456]
[  440.340614]  ? load_balance+0x17b/0x9c0
[  440.360506]  handle_active_stripes.isra.58+0x387/0x5a0 [raid456]
[  440.380675]  ? __release_stripe+0x15/0x20 [raid456]
[  440.400132]  raid5d+0x3ed/0x5d0 [raid456]
[  440.419193]  ? schedule+0x36/0x80
[  440.437932]  ? schedule_timeout+0x1d2/0x2f0
[  440.456136]  md_thread+0x122/0x150
[  440.473687]  ? wait_woken+0x80/0x80
[  440.491411]  kthread+0x102/0x140
[  440.508636]  ? find_pers+0x70/0x70
[  440.524927]  ? kthread_associate_blkcg+0xa0/0xa0
[  440.541791]  ret_from_fork+0x35/0x40
[  440.558020] Code: c2 48 00 5b 41 5c 41 5d 5d c3 48 89 c6 4c 89 e7 e8 bb c2
48 00 48 8b 3d bc 36 4b 01 48 89 de e8 7c f7 e0 ff 5b 41 5c 41 5d 5d c3 <0f> 0b
0f 1f 00 0f 1f 44 00 00 55 48 8d 47 b8 48 89 e5 41 57 41
[  440.610020] RIP: put_io_context+0x8b/0x90 RSP: ffffa8c882b43af8
[  440.628575] ---[ end trace a1fd79d85643a73e ]--

All the crash issue happened when a bypass IO coming, in such scenario
s->iop.bio is pointed to the s->orig_bio. In search_free(), it finishes the
s->orig_bio by calling bio_complete(), and after that, s->iop.bio became
invalid, then kernel would crash when calling bio_put(). Maybe its upper
layer's faulty, since bio should not be freed before we calling bio_put(),
but we'd better calling bio_put() first before calling bio_complete() to
notify upper layer ending this bio.

This patch moves bio_complete() under bio_put() to avoid kernel crash.

[mlyle: fixed commit subject for character limits]

Reported-by: Matthias Ferdinand <bcache@mfedv.net>
Tested-by: Matthias Ferdinand <bcache@mfedv.net>
Signed-off-by: Tang Junhui <tang.junhui@zte.com.cn>
Reviewed-by: Michael Lyle <mlyle@lyle.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-02-27 10:54:28 -07:00
Coly Li
02aa8a8b2b bcache: correct flash only vols (check all uuids)
Commit 2831231d4c ("bcache: reduce cache_set devices iteration by
devices_max_used") adds c->devices_max_used to reduce iteration of
c->uuids elements, this value is updated in bcache_device_attach().

But for flash only volume, when calling flash_devs_run(), the function
bcache_device_attach() is not called yet and c->devices_max_used is not
updated. The unexpected result is, the flash only volume won't be run
by flash_devs_run().

This patch fixes the issue by iterate all c->uuids elements in
flash_devs_run(). c->devices_max_used will be updated properly when
bcache_device_attach() gets called.

[mlyle: commit subject edited for character limit]

Fixes: 2831231d4c ("bcache: reduce cache_set devices iteration by devices_max_used")
Reported-by: Tang Junhui <tang.junhui@zte.com.cn>
Signed-off-by: Coly Li <colyli@suse.de>
Reviewed-by: Michael Lyle <mlyle@lyle.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-02-27 10:54:25 -07:00