Commit Graph

782128 Commits

Author SHA1 Message Date
Linus Torvalds
fb64638566 for-linus-20180830
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Merge tag 'for-linus-20180830' of git://git.kernel.dk/linux-block

Pull block fixes from Jens Axboe:
 "Small collection of fixes that should go into this series. This pull
  contains:

   - NVMe pull request with three small fixes (via Christoph)

   - Kill useless NULL check before kmem_cache_destroy (Chengguang Xu)

   - Xen block driver pull request with persistent grant flushing fixes
     (Juergen Gross)

   - Final wbt fixes, wrapping up the changes for this series. These
     have been heavily tested (me)

   - cdrom info leak fix (Scott Bauer)

   - ATA dma quirk for SQ201 (Linus Walleij)

   - Straight forward bsg refcount_t conversion (John Pittman)"

* tag 'for-linus-20180830' of git://git.kernel.dk/linux-block:
  cdrom: Fix info leak/OOB read in cdrom_ioctl_drive_status
  nvmet: free workqueue object if module init fails
  nvme-fcloop: Fix dropped LS's to removed target port
  nvme-pci: add a memory barrier to nvme_dbbuf_update_and_check_event
  block: bsg: move atomic_t ref_count variable to refcount API
  block: remove unnecessary condition check
  ata: ftide010: Add a quirk for SQ201
  blk-wbt: remove dead code
  blk-wbt: improve waking of tasks
  blk-wbt: abstract out end IO completion handler
  xen/blkback: remove unused pers_gnts_lock from struct xen_blkif_ring
  xen/blkback: move persistent grants flags to bool
  xen/blkfront: reorder tests in xlblk_init()
  xen/blkfront: cleanup stale persistent grants
  xen/blkback: don't keep persistent grants too long
2018-08-30 13:39:04 -07:00
Rob Herring
f42b0e18f2 of: add node name compare helper functions
In preparation to remove device_node.name pointer, add helper functions
for node name comparisons which are a common pattern throughout the kernel.

Cc: Frank Rowand <frowand.list@gmail.com>
Signed-off-by: Rob Herring <robh@kernel.org>
2018-08-30 13:53:05 -05:00
Marek Szyprowski
f8f3b7fc21 ARM: dts: exynos: Fix regulators configuration on Peach Pi/Pit Chromebooks
Regulators, which are marked as 'on-in-suspend' seems to be critical for
board operation, thus they must not be disabled anytime. This can be
only assured by marking them as 'always-on', because otherwise some
actions of their clients might result in turning them off. This patch
restores suspend/resume operation on Peach-Pit Chromebook board. It
partially reverts 'always-on' property removal done by the commit
mentioned in the Fixes tag.

Fixes: 665c441eea ("ARM: dts: exynos: Remove unneded always-on for regulators on Peach boards")
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Tested-by: Tomasz Figa <tfiga@chromium.org>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2018-08-30 19:52:30 +02:00
Krzysztof Kozlowski
b2a13da505 ARM: s3c24xx: Remove empty gta02_pmu children probe
Since commit 67e67df8da ("gta02: Use pcf50633 backlight driver instead
of platform backlight driver.") the list of gta02 pmu children is empty
therefore looping through it and adding devices is a no-op.

This also fixes the GCC v8.1 W=1 warning:

    arch/arm/mach-s3c24xx/mach-gta02.c: In function 'gta02_pmu_attach_child_devices':
    arch/arm/mach-s3c24xx/mach-gta02.c:538:16: warning: comparison of unsigned expression < 0 is always false [-Wtype-limits]
      for (n = 0; n < ARRAY_SIZE(gta02_devices_pmu_children); n++)
                    ^

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2018-08-30 19:51:43 +02:00
Krzysztof Kozlowski
e0b35c1ab5 ARM: exynos: Fix imprecise abort during Exynos5422 suspend to RAM
Suspend to RAM on Odroid XU3/XU4/HC1 family (Exynos5422) causes
imprecise abort:

	PM: Syncing filesystems ... done.
	Freezing user space processes ... (elapsed 0.003 seconds) done.
	OOM killer disabled.
	Freezing remaining freezable tasks ... (elapsed 0.003 seconds) done.
	wake enabled for irq 139
	Disabling non-boot CPUs ...
	IRQ51 no longer affine to CPU1
	IRQ52 no longer affine to CPU2
	IRQ53 no longer affine to CPU3
	IRQ54 no longer affine to CPU4
	IRQ55 no longer affine to CPU5
	IRQ56 no longer affine to CPU6
	cpu cpu4: Dropping the link to regulator.40
	IRQ57 no longer affine to CPU7
	Unhandled fault: external abort on non-linefetch (0x1008) at 0xf081a028
	Internal error: : 1008 [] PREEMPT SMP ARM

with last call trace in exynos_suspend_enter().

The abort is caused by writing to register in secure part of sysram.
Boards booted under secure firmware (e.g. Hardkernel Odroid boards)
should access non-secure sysram.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2018-08-30 19:46:06 +02:00
Krzysztof Kozlowski
687b5ae2e6 ARM: exynos: Store Exynos5420 register state in one variable
Instead of keeping two static variables put them into one struct which
later can grow.  This will reduce number of file-scope symbols.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2018-08-30 19:45:15 +02:00
Linus Torvalds
9f8f16c86e Raw NAND fixes:
- denali: Fix a regression caused by the nand_scan() rework
 - docg4: Fix a build error when gcc decides to not iniline some
   functions (can be reproduced with gcc 4.1.2)
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Merge tag 'mtd/for-4.19-rc2' of git://git.infradead.org/linux-mtd

Pull mtd fixes from Boris Brezillon:
 "Raw NAND fixes:

   - denali: Fix a regression caused by the nand_scan() rework

   - docg4: Fix a build error when gcc decides to not iniline some
     functions (can be reproduced with gcc 4.1.2):

* tag 'mtd/for-4.19-rc2' of git://git.infradead.org/linux-mtd:
  mtd: rawnand: denali: do not pass zero maxchips to nand_scan()
  mtd: rawnand: docg4: Remove wrong __init annotations
2018-08-30 10:05:12 -07:00
Linus Torvalds
48f8e8e96f MMC core:
- Fix unsupported parallel dispatch of requests
 
 MMC host:
  - atmel-mci/android-goldfish: Fixup logic of sg_copy_{from,to}_buffer
  - renesas_sdhi_internal_dmac: Prevent IRQ-storm due of DMAC IRQs
  - renesas_sdhi_internal_dmac: Fixup bad register offset
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Merge tag 'mmc-v4.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc

Pull MMC fixes from Ulf Hansson:
 "MMC core:
   - Fix unsupported parallel dispatch of requests

  MMC host:
   - atmel-mci/android-goldfish: Fixup logic of sg_copy_{from,to}_buffer
   - renesas_sdhi_internal_dmac: Prevent IRQ-storm due of DMAC IRQs
   - renesas_sdhi_internal_dmac: Fixup bad register offset"

* tag 'mmc-v4.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
  mmc: renesas_sdhi_internal_dmac: mask DMAC interrupts
  mmc: renesas_sdhi_internal_dmac: fix #define RST_RESERVED_BITS
  mmc: block: Fix unsupported parallel dispatch of requests
  mmc: android-goldfish: fix bad logic of sg_copy_{from,to}_buffer conversion
  mmc: atmel-mci: fix bad logic of sg_copy_{from,to}_buffer conversion
2018-08-30 09:50:15 -07:00
Marek Vasut
202eb54814 ARM: dts: socfpga: Rename socfpga_cyclone5_de0_{sockit,nano_soc}
Rename DT source for DE0 Nano SoC . The board name is really DE0-Nano-SoC
or Atlas SoC, and it is not to be confused with SoCkit board, which is a
different one. Rename the DT source file to match the board name and to
avoid this possible mixup with another different board.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Dinh Nguyen <dinguyen@kernel.org>
Cc: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
2018-08-30 08:38:26 -05:00
Dinh Nguyen
0ffc5df823 ARM: dts: socfpga: update NAND clocking for c5/a5
The NAND IP needs 3 clocks(nand_x_clk, nand_clk, and nand_ecc_clk). The
nand_x_clk and nand_ecc_clk are derived from the nand_clk. The nand_x_clk
has a fixed divider of 4.

Also, update the NAND dts property with the correct clocks property.

Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
---
v2: add nand_ecc_clk and update commit message
2018-08-30 08:38:26 -05:00
Dinh Nguyen
12b2982a1f ARM: dts: arria10: update NAND clocking
The NAND IP needs 3 clocks(nand_x_clk, nand_clk, and nand_ecc_clk). This
patch adds a nand_clk, which is derived from the nand_x_clk, but has a
fixed divider of 4, and the nand_ecc_clk, which is derived from the
nand_x_clk.

Update the NAND node to use the additional clocks.

Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
---
v2: add nand_ecc_clk and update commit message
2018-08-30 08:38:26 -05:00
Silvan Murer
9a8e3cfd34 ARM: dts: socfpga: set timer interrupt to edge sensitive
Change timer interrupt to edge sensitive.

Signed-off-by: Silvan Murer <silvan.murer@gmail.com>
Reviewed-by: Thor Thayer <thor.thayer@linux.intel.com>
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
2018-08-30 08:38:26 -05:00
Simon Goldschmidt
f20193f7c7 ARM: dts: socfpga: use stdout-path for chosen node
Use stdout-path dts property for kernel console.

There were two socfpga boards left not using stdout-path:
socrates and vining. Make sure they match the other boards.

Signed-off-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
2018-08-30 08:38:26 -05:00
Alan Tull
c8da1d15b8 arm64: dts: stratix10: i2c clock running out of spec
DesignWare I2C controller was observed running at 105.93kHz rather
than the specified 100kHz.  Adjust device tree settings to bring it
within spec (a slightly conservative 98 MHz).

Signed-off-by: Alan Tull <atull@kernel.org>
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
2018-08-30 08:38:26 -05:00
Marc Zyngier
755a8bf557 arm/arm64: smccc-1.1: Handle function result as parameters
If someone has the silly idea to write something along those lines:

	extern u64 foo(void);

	void bar(struct arm_smccc_res *res)
	{
		arm_smccc_1_1_smc(0xbad, foo(), res);
	}

they are in for a surprise, as this gets compiled as:

	0000000000000588 <bar>:
	 588:   a9be7bfd        stp     x29, x30, [sp, #-32]!
	 58c:   910003fd        mov     x29, sp
	 590:   f9000bf3        str     x19, [sp, ]
	 594:   aa0003f3        mov     x19, x0
	 598:   aa1e03e0        mov     x0, x30
	 59c:   94000000        bl      0 <_mcount>
	 5a0:   94000000        bl      0 <foo>
	 5a4:   aa0003e1        mov     x1, x0
	 5a8:   d4000003        smc     #0x0
	 5ac:   b4000073        cbz     x19, 5b8 <bar+0x30>
	 5b0:   a9000660        stp     x0, x1, [x19]
	 5b4:   a9010e62        stp     x2, x3, [x19, ]
	 5b8:   f9400bf3        ldr     x19, [sp, ]
	 5bc:   a8c27bfd        ldp     x29, x30, [sp], 
	 5c0:   d65f03c0        ret
	 5c4:   d503201f        nop

The call to foo "overwrites" the x0 register for the return value,
and we end up calling the wrong secure service.

A solution is to evaluate all the parameters before assigning
anything to specific registers, leading to the expected result:

	0000000000000588 <bar>:
	 588:   a9be7bfd        stp     x29, x30, [sp, #-32]!
	 58c:   910003fd        mov     x29, sp
	 590:   f9000bf3        str     x19, [sp, ]
	 594:   aa0003f3        mov     x19, x0
	 598:   aa1e03e0        mov     x0, x30
	 59c:   94000000        bl      0 <_mcount>
	 5a0:   94000000        bl      0 <foo>
	 5a4:   aa0003e1        mov     x1, x0
	 5a8:   d28175a0        mov     x0, #0xbad
	 5ac:   d4000003        smc     #0x0
	 5b0:   b4000073        cbz     x19, 5bc <bar+0x34>
	 5b4:   a9000660        stp     x0, x1, [x19]
	 5b8:   a9010e62        stp     x2, x3, [x19, ]
	 5bc:   f9400bf3        ldr     x19, [sp, ]
	 5c0:   a8c27bfd        ldp     x29, x30, [sp], 
	 5c4:   d65f03c0        ret

Reported-by: Julien Grall <julien.grall@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2018-08-30 14:18:03 +01:00
Uros Bizjak
26e609eccd x86/asm: Use CC_SET()/CC_OUT() in __gen_sigismember()
Replace open-coded set instructions with CC_SET()/CC_OUT().

Signed-off-by: Uros Bizjak <ubizjak@gmail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20180814165951.13538-1-ubizjak@gmail.com
2018-08-30 13:02:31 +02:00
Jiri Kosina
9222f60650 x86/alternatives: Lockdep-enforce text_mutex in text_poke*()
text_poke() and text_poke_bp() must be called with text_mutex held.

Put proper lockdep anotation in place instead of just mentioning the
requirement in a comment.

Reported-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Andy Lutomirski <luto@kernel.org>
Link: https://lkml.kernel.org/r/nycvar.YFH.7.76.1808280853520.25787@cbobk.fhfr.pm
2018-08-30 13:02:30 +02:00
Masahiro Yamada
113fc08357 objtool: Remove workaround for unreachable warnings from old GCC
Commit cafa0010cd ("Raise the minimum required gcc version to 4.6")
bumped the minimum GCC version to 4.6 for all architectures.

This effectively reverts commit da541b2002 ("objtool: Skip unreachable
warnings for GCC 4.4 and older"), which was a workaround for GCC 4.4 or
older.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Michal Marek <michal.lkml@markovi.net>
Cc: linux-kbuild@vger.kernel.org
Link: https://lkml.kernel.org/r/1535341183-19994-1-git-send-email-yamada.masahiro@socionext.com
2018-08-30 12:56:40 +02:00
Mukesh Ojha
13ba17bee1 notifier: Remove notifier header file wherever not used
The conversion of the hotplug notifiers to a state machine left the
notifier.h includes around in some places. Remove them.

Signed-off-by: Mukesh Ojha <mojha@codeaurora.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/1535114033-4605-1-git-send-email-mojha@codeaurora.org
2018-08-30 12:56:40 +02:00
Vincent Whitchurch
cb9d7fd51d watchdog: Mark watchdog touch functions as notrace
Some architectures need to use stop_machine() to patch functions for
ftrace, and the assumption is that the stopped CPUs do not make function
calls to traceable functions when they are in the stopped state.

Commit ce4f06dcbb ("stop_machine: Touch_nmi_watchdog() after
MULTI_STOP_PREPARE") added calls to the watchdog touch functions from
the stopped CPUs and those functions lack notrace annotations.  This
leads to crashes when enabling/disabling ftrace on ARM kernels built
with the Thumb-2 instruction set.

Fix it by adding the necessary notrace annotations.

Fixes: ce4f06dcbb ("stop_machine: Touch_nmi_watchdog() after MULTI_STOP_PREPARE")
Signed-off-by: Vincent Whitchurch <vincent.whitchurch@axis.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: oleg@redhat.com
Cc: tj@kernel.org
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/20180821152507.18313-1-vincent.whitchurch@axis.com
2018-08-30 12:56:40 +02:00
Jann Horn
f12d11c5c1 x86/entry/64: Wipe KASAN stack shadow before rewind_stack_do_exit()
Reset the KASAN shadow state of the task stack before rewinding RSP.
Without this, a kernel oops will leave parts of the stack poisoned, and
code running under do_exit() can trip over such poisoned regions and cause
nonsensical false-positive KASAN reports about stack-out-of-bounds bugs.

This does not wipe the exception stacks; if an oops happens on an exception
stack, it might result in random KASAN false-positives from other tasks
afterwards. This is probably relatively uninteresting, since if the kernel
oopses on an exception stack, there are most likely bigger things to worry
about. It'd be more interesting if vmapped stacks and KASAN were
compatible, since then handle_stack_overflow() would oops from exception
stack context.

Fixes: 2deb4be280 ("x86/dumpstack: When OOPSing, rewind the stack before do_exit()")
Signed-off-by: Jann Horn <jannh@google.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: kasan-dev@googlegroups.com
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/20180828184033.93712-1-jannh@google.com
2018-08-30 11:37:09 +02:00
Nick Desaulniers
1f59a4581b x86/irqflags: Mark native_restore_fl extern inline
This should have been marked extern inline in order to pick up the out
of line definition in arch/x86/kernel/irqflags.S.

Fixes: 208cbb3255 ("x86/irqflags: Provide a declaration for native_save_fl")
Reported-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Juergen Gross <jgross@suse.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/20180827214011.55428-1-ndesaulniers@google.com
2018-08-30 11:37:09 +02:00
Masahiro Yamada
36bf9da291 x86/build: Remove jump label quirk for GCC older than 4.5.2
Commit cafa0010cd ("Raise the minimum required gcc version to 4.6")
bumped the minimum GCC version to 4.6 for all architectures.

Remove the workaround code.

It was the only user of cc-if-fullversion.  Remove the macro as well.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Michal Marek <michal.lkml@markovi.net>
Cc: linux-kbuild@vger.kernel.org
Link: https://lkml.kernel.org/r/1535348714-25457-1-git-send-email-yamada.masahiro@socionext.com
2018-08-30 11:37:08 +02:00
Linus Torvalds
58c3f14f86 RISC-V Fixes and Cleanups for 4.19-rc2
This tag contains a handful of patches that filtered their way in during
 the merge window but just didn't make the deadline.  It includes:
 
 * Additional documentation in the riscv,cpu-intc device tree binding
   that resulted from some feedback I missed in the original patch set.
 * A build fix that provides the definition of tlb_flush() before
   including tlb.h, which fixes a RISC-V build regression introduced
   during this merge window.
 * A cosmetic cleanup to sys_riscv_flush_icache().
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Merge tag 'riscv-for-linus-4.19-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/palmer/riscv-linux

Pull RISC-V fixes from Palmer Dabbelt:
 "RISC-V Fixes and Cleanups for 4.19-rc2

  This contains a handful of patches that filtered their way in during
  the merge window but just didn't make the deadline. It includes:

   - Additional documentation in the riscv,cpu-intc device tree binding
     that resulted from some feedback I missed in the original patch
     set.

   - A build fix that provides the definition of tlb_flush() before
     including tlb.h, which fixes a RISC-V build regression introduced
     during this merge window.

   - A cosmetic cleanup to sys_riscv_flush_icache()"

* tag 'riscv-for-linus-4.19-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/palmer/riscv-linux:
  RISC-V: Use a less ugly workaround for unused variable warnings
  riscv: tlb: Provide definition of tlb_flush() before including tlb.h
  dt-bindings: riscv,cpu-intc: Cleanups from a missed review
2018-08-29 18:41:48 -07:00
Dave Airlie
49a51c4b40 - fix for GLK and CNL watermark workaround
- fix for display affecting NUCs with LSPCON
 - freeing an allocated write_buf on hdcp
 - audio hook when display is disabled
 - vma stop holding ppgtt reference
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Merge tag 'drm-intel-fixes-2018-08-29' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes

- fix for GLK and CNL watermark workaround
- fix for display affecting NUCs with LSPCON
- freeing an allocated write_buf on hdcp
- audio hook when display is disabled
- vma stop holding ppgtt reference

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180829234512.GA32468@intel.com
2018-08-30 11:35:03 +10:00
Dave Airlie
185c3cfaca Merge branch 'drm-fixes-4.19' of git://people.freedesktop.org/~agd5f/linux into drm-fixes
Fixes for 4.19:
- SR-IOV fixes
- Kasan and page fault fix on device removal
- S3 stability fix for CZ/ST
- VCE regression fixes for CIK parts
- Avoid holding the mn_lock when allocating memory
- DC memory leak fix
- BO eviction fix

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexdeucher@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180829202555.2653-1-alexander.deucher@amd.com
2018-08-30 11:34:14 +10:00
Dave Airlie
852fde0a34 Merge branch 'mediatek-drm-fixes-4.19' of https://github.com/ckhu-mediatek/linux.git-tags into drm-fixes
"Here are some fixes for mediatek drm driver."

Mostly fixes around the RDMA and Overlay

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: CK Hu <ck.hu@mediatek.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1535346194.27648.5.camel@mtksdaap41
2018-08-30 11:28:57 +10:00
Ard Biesheuvel
ff69279a44 powerpc: disable support for relative ksymtab references
The newly added code that emits ksymtab entries as pairs of 32-bit
relative references interacts poorly with the way powerpc lays out its
address space: when a module exports a per-CPU variable, the primary
module region covering the ksymtab entry -and thus the 32-bit relative
reference- is too far away from the actual per-CPU variable's base
address (to which the per-CPU offsets are applied to obtain the
respective address of each CPU's copy), resulting in corruption when the
module loader attempts to resolve symbol references of modules that are
loaded on top and link to the exported per-CPU symbol.

So let's disable this feature on powerpc.  Even though it implements
CONFIG_RELOCATABLE, it does not implement CONFIG_RANDOMIZE_BASE and so
KASLR kernels (which are the main target of the feature) do not exist on
powerpc anyway.

Reported-by: Andreas Schwab <schwab@linux-m68k.org>
Suggested-by: Nicholas Piggin <nicholas.piggin@gmail.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-08-29 16:12:07 -07:00
Linus Torvalds
af3a5fe4dd Merge tag 'hwmon-for-linus-v4.19-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon fixes from Guenter Roeck:

 - Fix potential Spectre v1 in nct6775

 - Add error checking to adt7475 driver

 - Fix reading shunt resistor value in ina2xx driver

* tag 'hwmon-for-linus-v4.19-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: (nct6775) Fix potential Spectre v1
  hwmon: (adt7475) Make adt7475_read_word() return errors
  hwmon: (adt7475) Potential error pointer dereferences
  hwmon: (ina2xx) fix sysfs shunt resistor read access
2018-08-29 16:03:45 -07:00
Linus Torvalds
f3f106dac0 \n
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Merge tag 'for_v4.19-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs

Pull misc fs fixes from Jan Kara:

 - make UDF to properly mount media created by Win7

 - make isofs to properly refuse devices with large physical block size

 - fix a Spectre gadget in quotactl(2)

 - fix a warning in fsnotify code hit by syzkaller

* tag 'for_v4.19-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
  udf: Fix mounting of Win7 created UDF filesystems
  udf: Remove dead code from udf_find_fileset()
  fs/quota: Fix spectre gadget in do_quotactl
  fs/quota: Replace XQM_MAXQUOTAS usage with MAXQUOTAS
  isofs: reject hardware sector size > 2048 bytes
  fsnotify: fix false positive warning on inode delete
2018-08-29 14:56:45 -07:00
Linus Torvalds
ff81a521b8 nios2 fix for v4.19-rc2
nios2: kconfig: remove duplicate DEBUG_STACK_USAGE symbol defintions
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Merge tag 'nios2-v4.19-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/lftan/nios2

Pull nios2 fix from Ley Foon Tan:
 "remove duplicate DEBUG_STACK_USAGE symbol defintions"

* tag 'nios2-v4.19-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/lftan/nios2:
  nios2: kconfig: remove duplicate DEBUG_STACK_USAGE symbol defintions
2018-08-29 14:51:32 -07:00
Chris Wilson
80ab316901 drm/i915/audio: Hook up component bindings even if displays are disabled
If the display has been disabled by modparam, we still want to connect
together the HW bits and bobs with the associated drivers so that we can
continue to manage their runtime power gating.

Fixes: 108109444f ("drm/i915: Check num_pipes before initializing audio component")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Imre Deak <imre.deak@intel.com>
Cc: Takashi Iwai <tiwai@suse.de>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Elaine Wang <elaine.wang@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180817100241.4628-1-chris@chris-wilson.co.uk
(cherry picked from commit 35a5fd9ebf)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2018-08-29 14:11:53 -07:00
Fredrik Schön
299c2a904b drm/i915: Increase LSPCON timeout
100 ms is not enough time for the LSPCON adapter on Intel NUC devices to
settle. This causes dropped display modes at boot or screen reconfiguration.
Empirical testing can reproduce the error up to a timeout of 190 ms. Basic
boot and stress testing at 200 ms has not (yet) failed.

Increase timeout to 400 ms to get some margin of error.

Changes from v1:
The initial suggestion of 1000 ms was lowered due to concerns about delaying
valid timeout cases.
Update patch metadata.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=107503
Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1570392
Fixes: 357c0ae919 ("drm/i915/lspcon: Wait for expected LSPCON mode to settle")
Cc: Shashank Sharma <shashank.sharma@intel.com>
Cc: Imre Deak <imre.deak@intel.com>
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: <stable@vger.kernel.org> # v4.11+
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Shashank Sharma <shashank.sharma@intel.com>
Signed-off-by: Fredrik Schön <fredrik.schon@gmail.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180817200728.8154-1-fredrik.schon@gmail.com
(cherry picked from commit 59f1c8ab30)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2018-08-29 14:11:53 -07:00
Chris Wilson
f013027e26 drm/i915: Stop holding a ref to the ppgtt from each vma
The context owns both the ppgtt and the vma within it, and our activity
tracking on the context ensures that we do not release active ppgtt. As
the context fulfils our obligations for active memory tracking, we can
relinquish the reference from the vma.

This fixes a silly transient refleak from closed vma being kept alive
until the entire system was idle, keeping all vm alive as well.

Reported-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Testcase: igt/gem_ctx_create/files
Fixes: 3365e2268b ("drm/i915: Lazily unbind vma on close")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Tested-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180816073448.19396-1-chris@chris-wilson.co.uk
(cherry picked from commit a4417b7b41)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2018-08-29 14:11:53 -07:00
Linus Torvalds
b4df50de6a Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto fixes from Herbert Xu:

 - Check for the right CPU feature bit in sm4-ce on arm64.

 - Fix scatterwalk WARN_ON in aes-gcm-ce on arm64.

 - Fix unaligned fault in aesni on x86.

 - Fix potential NULL pointer dereference on exit in chtls.

 - Fix DMA mapping direction for RSA in caam.

 - Fix error path return value for xts setkey in caam.

 - Fix address endianness when DMA unmapping in caam.

 - Fix sleep-in-atomic in vmx.

 - Fix command corruption when queue is full in cavium/nitrox.

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: cavium/nitrox - fix for command corruption in queue full case with backlog submissions.
  crypto: vmx - Fix sleep-in-atomic bugs
  crypto: arm64/aes-gcm-ce - fix scatterwalk API violation
  crypto: aesni - Use unaligned loads from gcm_context_data
  crypto: chtls - fix null dereference chtls_free_uld()
  crypto: arm64/sm4-ce - check for the right CPU feature bit
  crypto: caam - fix DMA mapping direction for RSA forms 2 & 3
  crypto: caam/qi - fix error path in xts setkey
  crypto: caam/jr - fix descriptor DMA unmapping
2018-08-29 13:38:39 -07:00
Marek Szyprowski
64858773d7 ARM: dts: exynos: Fix sound in Snow-rev5 Chromebook
This patch adds missing properties to the CODEC and sound nodes, so the
audio will work also on Snow rev5 Chromebook. This patch is an extension
to the commit e9eefc3f8c ("ARM: dts: exynos: Add missing clock and
DAI properties to the max98095 node in Snow Chromebook")
and commit 6ab569936d ("ARM: dts: exynos: Enable HDMI audio on Snow
Chromebook").  It has been reported that such changes work fine on the
rev5 board too.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
[krzk: Fixed typo in phandle to &max98090]
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2018-08-29 22:18:50 +02:00
Krzysztof Kozlowski
8be3e7f078 ARM: dts: exynos: Add LDO28 regulator on Exynos5422 Odroid boards
The LDO28 is used only on Odroid XU3 for Display Port.  Define it so DTS
will describe entire hardware.

Depending on bootloader behavior this might affect the Display Port
because none of drivers are enabling it. By default it is off in S2MPS11
PMIC reset values.  However it could be enabled by bootloader so in such
case kernel will later disable it as unused regulator.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
2018-08-29 21:57:24 +02:00
Krzysztof Kozlowski
b5124e4507 ARM: dts: exynos: Disable unused PMIC regulators on Exynos5422 Odroid boards
Disable unused PMIC regulators on Exynos5422 Odroid boards to reduce
energy used. According to schematics:
1. LDO12, LDO16 and LDO24 are not connected,
2. LDO26 is not used on Odroid HC1.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2018-08-29 21:57:23 +02:00
Krzysztof Kozlowski
8e82954979 ARM: dts: exynos: Add unused PMIC regulators on Exynos5422 Odroid boards
Define LDO14, LDO20-22, LDO25 and LOD29-38 unused regulators to
describe the hardware.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2018-08-29 21:57:22 +02:00
Krzysztof Kozlowski
95ac226222 ARM: dts: exynos: Add missing used PMIC regulators on Exynos5422 Odroid boards
Define LDO2, LDO23 and LDO27 critical board regulators to describe the
hardware.

Suggested-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2018-08-29 21:57:20 +02:00
Marek Szyprowski
645b23da6f ARM: dts: exynos: Mark 1 GHz CPU OPP as suspend OPP on Exynos5250
1 GHz CPU OPP is the default boot value for the Exynos5250 SOC, so mark it
as suspend OPP. This fixes suspend/resume on Samsung Exynos5250 Snow
Chomebook, which was broken since switching to generic cpufreq-dt driver
in v4.3.

Cc: <stable@vger.kernel.org> # 4.3.x: cd6f55457e: ARM: dts: exynos: Remove "cooling-{min|max}-level" for CPU nodes
Cc: <stable@vger.kernel.org> # 4.3.x: 672f33198b: arm: dts: exynos: Add missing cooling device properties for CPUs
Cc: <stable@vger.kernel.org> # 4.3.x
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2018-08-29 21:57:14 +02:00
Marek Szyprowski
eb9e16d857 ARM: dts: exynos: Convert exynos5250.dtsi to opp-v2 bindings
Convert Exynos5250 to OPP-v2 bindings. This is a preparation to add proper
support for suspend operation point, which cannot be marked in opp-v1.

Cc: <stable@vger.kernel.org> # 4.3.x: cd6f55457e: ARM: dts: exynos: Remove "cooling-{min|max}-level" for CPU nodes
Cc: <stable@vger.kernel.org> # 4.3.x: 672f33198b: arm: dts: exynos: Add missing cooling device properties for CPUs
Cc: <stable@vger.kernel.org> # 4.3.x
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2018-08-29 21:57:08 +02:00
Krzysztof Kozlowski
db4e26115c ARM: dts: s5pv210: Switch to S5Pv210 specific pinctrl wakeup compatible
The pin controller block of S5Pv210 for handling external wakeup
interrupts is different than in newer designs (Exynos).

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Cc: Tomasz Figa <tomasz.figa@gmail.com>
Cc: Sylwester Nawrocki <snawrocki@kernel.org>
Acked-by: Tomasz Figa <tomasz.figa@gmail.com>
2018-08-29 21:19:45 +02:00
Andrzej Hajda
21cb5a2748 ARM: dts: exynos: Fix HDMI-HPD line handling on Arndale
HDMI-HPD was set active low, moreover by default pincontrol chip sets
pull-down on the pin. As a result HDMI driver assumes TV is always
connected regardless of actual state.  The patch fixes it.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2018-08-29 20:57:51 +02:00
Andrzej Hajda
620375c8fd ARM: dts: exynos: Use i2c-gpio for HDMI-DDC on Arndale
HDMI-DDC for unknown reasons doesn't work with Exynos I2C controllers.
Fortunately i2c-gpio comes to the rescue.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2018-08-29 20:57:02 +02:00
Andrzej Hajda
0772cf588c ARM: dts: exynos: Add DSI and panel nodes on Arndale
Add to Arndale board: bridge and panel nodes, DSI properties and
regulators required by the bridge.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Maciej Purski <m.purski@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2018-08-29 20:54:25 +02:00
Andrzej Hajda
d428b5355d ARM: dts: exynos: Add DSI node on Exynos5250
Add common part of DSI node for Exynos5250 platforms and a required
mipi-phy node.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Maciej Purski <m.purski@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2018-08-29 20:54:13 +02:00
Nishanth Menon
67e6ddb5be arm64: defconfig: Enable TI's AM6 SoC platform
Enable K3 SoC platform for TI's AM6 SoC.

Signed-off-by: Nishanth Menon <nm@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2018-08-29 11:51:26 -07:00
Linus Walleij
1dbd150d04 ARM: defconfig: Update the ARM Versatile defconfig
This updates the ARM Versatile defconfig to the latest
Kconfig structural changes and adds the DUMB VGA bridge
driver so that VGA works out of the box, e.g. with QEMU.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
2018-08-29 11:50:46 -07:00
Olof Johansson
55a020e21c i.MX fixes for 4.19:
- i.MX display folks decided to switch MXS display driver from legacy
    FB to DRM during 4.19 merge window.  It leads to a fallout on some
    Freescale/NXP development boards with Seiko 43WVF1G panel, because
    this DRM panel driver is not enabled in i.MX defconfig.  Here is
    a series from Fabio to convert i.MX23/28 EVK DT to Seiko 43WVF1G
    panel bindings and enable the panel driver in i.MX defconfig, so that
    users can still get functional LCD on these boards by default.
  - A fix from Leonard to revert incorrect legacy PCI irq mapping in
    i.MX7 device tree, that was caused by document errors.
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Merge tag 'imx-fixes-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into fixes

i.MX fixes for 4.19:
 - i.MX display folks decided to switch MXS display driver from legacy
   FB to DRM during 4.19 merge window.  It leads to a fallout on some
   Freescale/NXP development boards with Seiko 43WVF1G panel, because
   this DRM panel driver is not enabled in i.MX defconfig.  Here is
   a series from Fabio to convert i.MX23/28 EVK DT to Seiko 43WVF1G
   panel bindings and enable the panel driver in i.MX defconfig, so that
   users can still get functional LCD on these boards by default.
 - A fix from Leonard to revert incorrect legacy PCI irq mapping in
   i.MX7 device tree, that was caused by document errors.

* tag 'imx-fixes-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  ARM: imx_v6_v7_defconfig: Select CONFIG_DRM_PANEL_SEIKO_43WVF1G
  ARM: mxs_defconfig: Select CONFIG_DRM_PANEL_SEIKO_43WVF1G
  ARM: dts: imx23-evk: Convert to the new display bindings
  ARM: dts: imx23-evk: Move regulators outside simple-bus
  ARM: dts: imx28-evk: Convert to the new display bindings
  ARM: dts: imx28-evk: Move regulators outside simple-bus
  Revert "ARM: dts: imx7d: Invert legacy PCI irq mapping"

Signed-off-by: Olof Johansson <olof@lixom.net>
2018-08-29 11:50:14 -07:00