Make sure powerplay initialized properly before enabling
debugfs pm files.
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed- by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

We don't support the dpm parameter in powerplay.
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org

For drm_gem_object_unreference callers are required to hold
dev->struct_mutex, which these paths don't. Enforcing this requirement
has become a bit more strict with

commit ef4c6270
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date:   Thu Oct 15 09:36:25 2015 +0200

    drm/gem: Check locking in drm_gem_object_unreference

Cc: stable@vger.kernel.org
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

1) don't let other threads trying to bang on aux channel interrupt the
defer timeout/logic
2) don't let other threads interrupt the i2c over aux logic

Technically, according to people who actually have the DP spec, this
should not be required.  In practice, it makes some troublesome Dell
monitor (and perhaps others) work, so probably a case of "It's compliant
if it works with windows" on the hw vendor's part..

v2: rebased to come before DPCD/AUX logging patch for easier backport
to stable branches.
Reported-by: Dave Wysochanski <dwysocha@redhat.com>
Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1274157
Cc: stable@vger.kernel.org
Signed-off-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>

Merge branch 'drm-rockchip-next-fixes-2016-03-28' of https://github.com/markyzq/kernel-drm-rockchip into drm-fixes

bunch of rockchip fixes.

* 'drm-rockchip-next-fixes-2016-03-28' of https://github.com/markyzq/kernel-drm-rockchip:
  drm/rockchip: dw_hdmi: Don't call platform_set_drvdata()
  drm/rockchip: vop: Fix vop crtc cleanup
  drm/rockchip: dw_hdmi: Call drm_encoder_cleanup() in error path
  drm/rockchip: vop: Disable planes when disabling CRTC
  drm/rockchip: vop: Don't reject empty modesets
  drm/rockchip: cancel pending vblanks on close
  drm/rockchip: vop: fix crtc size in plane check

two minor msm fixes.

* 'msm-fixes-4.6-rc1' of git://people.freedesktop.org/~robclark/linux:
  drm/msm: fix typo in the !COMMON_CLK case
  drm/msm: fix bug after preclose removal

Just a few fixes for 4.6 this week:
- Add some SI DPM quirks
- Improve the ACP Kconfig text
- Additional BO pinning checks

* 'drm-next-4.6' of git://people.freedesktop.org/~agd5f/linux:
  drm/amdgpu: Don't move pinned BOs
  drm/radeon: Don't move pinned BOs
  drm/radeon: add a dpm quirk for all R7 370 parts
  drm/radeon: add another R7 370 quirk
  drm/radeon: add a dpm quirk for sapphire Dual-X R7 370 2G D5
  drm/amd: Beef up ACP Kconfig menu text

Pull parisc fixes from Helge Deller:
 "Fix seccomp filter support and SIGSYS signals on compat kernel.

  Both patches are tagged for v4.5 stable kernel"

* 'parisc-4.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
  parisc: Fix and enable seccomp filter support
  parisc: Fix SIGSYS signals in compat case

Pull vfs fix from Al Viro.

Automount handling was broken by commit e3c13928 ("namei: massage
lookup_slow() to be usable by lookup_one_len_unlocked()") moving the
test for negative dentry too early.

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  fix the braino in "namei: massage lookup_slow() to be usable by lookup_one_len_unlocked()"

Pull GPIO fixes from Linus Walleij:
 "Here are two GPIO fixes for the v4.6 series, both in drivers:

   - Prevent NULL dereference in the Xgene driver
   - Fix an uninitialized spinlock in the menz127 driver"

* tag 'gpio-v4.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
  gpio: xgene: Prevent NULL pointer dereference
  gpio: menz127: Drop lock field from struct men_z127_gpio

Pull nvdimm mcsafe_memcpy use from Dan Williams:
 "Now that mcsafe_memcpy() has landed, and the return value was been
  clarified in commit cbf8b5a2 ("x86/mm, x86/mce: Fix return
  type/value for memcpy_mcsafe()"), let's hook up its primary usage in
  the pmem driver.

  The compilation problems from the initial posting have been fixed,
  this has appeared in a -next release with no reported issues, and it
  picked up an ack from Ingo.  There is no pressing need to merge this
  in 4.6- rc2.  However, if we wait until 4.7 the new memcpy_mcsafe()
  capability will ship without a user in 4.6-final"

* 'libnvdimm-for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
  x86, pmem: use memcpy_mcsafe() for memcpy_from_pmem()

The seccomp filter support requires careful handling of task registers.  This
includes reloading of the return value (%r28) and proper syscall exit if
secure_computing() returned -1.

Additionally we need to sign-extend the syscall number from signed 32bit to
signed 64bit in do_syscall_trace_enter() since the ptrace interface only allows
storing 32bit values in compat mode.
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org # v4.5

Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org # v4.5

We should try to trigger automount *before* bailing out on negative dentry.
Reported-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com>
Reported-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com>
Reported-by: Arend van Spriel <arend@broadcom.com>
Tested-by: Arend van Spriel <arend@broadcom.com>
Tested-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

Pull nios2 fix from Ley Foon Tan:
 "Replace fdt_translate_address with of_flat_dt_translate_address"

Fixes a build failure.

* tag 'nios2-v4.6-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/lftan/nios2:
  nios2: Replace fdt_translate_address with of_flat_dt_translate_address

nios2 builds fail with the following build error.

arch/nios2/kernel/prom.c: In function 'early_init_dt_scan_serial':
arch/nios2/kernel/prom.c:100:2: error:
	implicit declaration of function 'fdt_translate_address'

Commit c90fe9c0 ("of: earlycon: Move address translation to
of_setup_earlycon()") replaced fdt_translate_address() with
of_flat_dt_translate_address() but missed updating the nios2 code.

Fixes: c90fe9c0 ("of: earlycon: Move address translation to of_setup_earlycon()")
Cc: Peter Hurley <peter@hurleysoftware.com>
Cc: Rob Herring <robh@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Ley Foon Tan <lftan@altera.com>

Pull crypto fix from Herbert Xu:
 "This fixes a bug in pkcs7_validate_trust and its users where the
  output value may in fact be taken from uninitialised memory"

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  PKCS#7: pkcs7_validate_trust(): initialize the _trusted output argument

Pull dlm fix from David Teigland:
 "This fixes a bug from the configfs cleanup"

* tag 'dlm-4.6-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm:
  dlm: config: Fix ENOMEM failures in make_cluster()

Merge tag 'hwmon-for-linus-v4.6-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull hwmon fix from Guenter Roeck:
 "Fix crash due to NULL pointer access in max1111 driver"

* tag 'hwmon-for-linus-v4.6-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: (max1111) Return -ENODEV from max1111_read_channel if not instantiated

platform_get_resource() can return NULL, thus add NULL test to prevent NULL
pointer dereference.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

Current code uses a uninitialized spin lock.
bgpio_init() already initialized a spin lock, so let's switch to use
&gc->bgpio_lock instead and remove the lock from struct men_z127_gpio.

Fixes: f436bc27 "gpio: add driver for MEN 16Z127 GPIO controller"
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

Commit 1ae1602d "configfs: switch ->default groups to a linked list"
left the NULL gps pointer behind after removing the kcalloc() call which
made it non-NULL. It also left the !gps check in place so make_cluster()
now fails with ENOMEM. Remove the remaining uses of the gps variable to
fix that.
Reviewed-by: Bob Peterson <rpeterso@redhat.com>
Reviewed-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Andrew Price <anprice@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>

Update the definition of memcpy_from_pmem() to return 0 or a negative
error code.  Implement x86/arch_memcpy_from_pmem() with memcpy_mcsafe().

Cc: Borislav Petkov <bp@alien8.de>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Acked-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>

Pull IDE fixes from David Miller:
 "Just two small changes:

  1) Remove bogus init annotation in icside, from Arnd Bergmann.

  2) Don't use zero clock rates in palm_bk3710 driver, from Wolfram
     Sang"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide:
  ide: palm_bk3710: test clock rate to avoid division by 0
  ide: icside: remove incorrect initconst annotation

Pull sparc fixes from David Miller:
 "Minor typing cleanup from Joe Perches, and some comment typo fixes
  from Adam Buchbinder"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
  sparc: Convert naked unsigned uses to unsigned int
  sparc: Fix misspellings in comments.

Pull arch/tile bugfixes from Chris Metcalf:
 "These include updates to MAINTAINERS, some comment spelling fixes, and
  a bugfix to the tile kgdb.c support"

* git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile:
  tile: Fix misspellings in comments.
  MAINTAINERS: update web link for tile architecture
  MAINTAINERS: update arch/tile maintainer email domain
  tile kgdb: fix bug in copy to gdb regs, and optimize memset

The purpose of pinning is to prevent a buffer from moving.
Reviewed-by: Christian König <christian.koenig@amd.com>
Tested-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

The purpose of pinning is to prevent a buffer from moving.
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Higher mclk values are not stable due to a bug somewhere.
Limit them for now.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org

bug:
https://bugzilla.kernel.org/show_bug.cgi?id=115291Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org

The Rockchip dw_hdmi driver just called platform_set_drvdata() to get
your hopes up that maybe, somehow, you'd be able to retrieve the 'struct
rockchip_hdmi' from a pointer to the 'struct device'.  You can't.  When
we call dw_hdmi_bind() the main driver calls dev_set_drvdata(), which
clobbers our setting.

Let's just remove the platform_set_drvdata() to avoid dashing people's
hopes.
Signed-off-by: Douglas Anderson <dianders@chromium.org>

This fixes a few problems in the vop crtc cleanup (handling error
paths and cleanup upon exit):

* The vop_create_crtc() error path had an unsafe version of the
  iterator used for iterating over all planes (though it was
  destroying planes in the iterator so should have used the safe
  version)

* vop_destroy_crtc() - wasn't calling vop_plane_destroy(), which made
  slub_debug unhappy, at least if we ended up running this due to a
  deferred probe.

* In vop_create_crtc() if we were missing the "port" device tree node
  we would fail but not return an error (found by code inspection).

Fix these problems.
Signed-off-by: Douglas Anderson <dianders@chromium.org>

The drm_encoder_cleanup() was missing both from the error path of
dw_hdmi_rockchip_bind().  This caused a crash when slub_debug was
enabled and we ended up deferring probe of HDMI at boot.

This call isn't needed from unbind() because if dw_hdmi_bind() returns
no error then it takes over the job of freeing the encoder (in
dw_hdmi_unbind).
Signed-off-by: Douglas Anderson <dianders@chromium.org>

When a VOP is re-enabled, it will start scanning right away the
framebuffers that were configured from the last time, even if those have
been destroyed already.

To prevent the VOP from trying to access freed memory, disable all its
windows when the CRTC is being disabled, then each window will get a
valid framebuffer address before it's enabled again.
Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Link: http://lkml.kernel.org/g/CAAObsKAv+05ih5U+=4kic_NsjGMhfxYheHR8xXXmacZs+p5SHw@mail.gmail.com

So that when DRM_IOCTL_MODE_SETCRTC is called without a FB nor mode, the
CRTC gets disabled.
Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Link: http://lkml.kernel.org/g/CAAObsKAv+05ih5U+=4kic_NsjGMhfxYheHR8xXXmacZs+p5SHw@mail.gmail.com

When closing the DRM device while a vblank is pending, we access
file_priv after it has been free'd, which gives:

  Unable to handle kernel NULL pointer dereference at virtual address 00000000
  ...
  PC is at __list_add+0x5c/0xe8
  LR is at send_vblank_event+0x54/0x1f0
  ...
  [<c02952e8>] (__list_add) from [<c031a7b4>] (send_vblank_event+0x54/0x1f0)
  [<c031a760>] (send_vblank_event) from [<c031a9c0>] (drm_send_vblank_event+0x70/0x78)
  [<c031a950>] (drm_send_vblank_event) from [<c031a9f8>] (drm_crtc_send_vblank_event+0x30/0x34)
  [<c031a9c8>] (drm_crtc_send_vblank_event) from [<c0339ad8>] (vop_isr+0x224/0x28c)
  [<c03398b4>] (vop_isr) from [<c0081780>] (handle_irq_event_percpu+0x12c/0x3e4)

This can be triggered somewhat reliably with:

	modetest -M rockchip -v -s ...

Add a preclose hook to the driver so that we can discard any pending
vblank events when the device is closed.
Signed-off-by: John Keeping <john@metanate.com>

If the geometry of a crtc is changing in an atomic update then we must
validate the plane size against the new state of the crtc and not the
current size, otherwise if the crtc size is increasing the plane will be
cropped at the previous size and will not fill the screen.
Signed-off-by: John Keeping <john@metanate.com>