Commit graph

505879 commits

Author SHA1 Message Date
Chris Wilson
6c31a614c4 drm/i915: Check obj->vma_list under the struct_mutex
When we walk the list of vma, or even for protecting against concurrent
framebuffer creation, we must hold the struct_mutex or else a second
thread can corrupt the list as we walk it.

Fixes regression from
commit d7f46fc4e7
Author: Ben Widawsky <benjamin.widawsky@intel.com>
Date:   Fri Dec 6 14:10:55 2013 -0800

    drm/i915: Make pin count per VMA

References: https://bugs.freedesktop.org/show_bug.cgi?id=89085
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: stable@vger.kernel.org
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2015-02-24 15:30:42 +02:00
Nick Hoath
b3a38998f0 drm/i915: Fix a use after free, and unbalanced refcounting
When converting from implicitly tracked execlist queue items to ref counted
requests, not all frees of requests were replaced with unrefs, and extraneous
refs/unrefs of contexts were added.
Correct the unbalanced refcount & replace the frees.
Remove a noisy warning when hitting the request creation path.

drm_i915_gem_request and intel_context are both kref reference counted
structures. Upon allocation, drm_i915_gem_request's ref count should be
bumped using kref_init. When a context is assigned to the request,
the context's reference count should be bumped using i915_gem_context_reference.
i915_gem_request_reference will reduce the context reference count when
the request is freed.

Problem introduced in
commit 6d3d8274bc
Author:     Nick Hoath <nicholas.hoath@intel.com>
AuthorDate: Thu Jan 15 13:10:39 2015 +0000

     drm/i915: Subsume intel_ctx_submit_request in to drm_i915_gem_request

v2: Added comments explaining how the ctx pointer and the request object should
be ref-counted. Removed noisy warning.

v3: Cleaned up the language used in the commit & the header
description (Thanks David Gordon)

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=88652
Signed-off-by: Nick Hoath <nicholas.hoath@intel.com>
Reviewed-by: Thomas Daniel <thomas.daniel@intel.com>
Reviewed-by: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2015-02-24 15:18:37 +02:00
Jaroslav Kysela
37ed398839 ALSA: hda: controller code - do not export static functions
It is a bad idea to export static functions. GCC for some platforms
shows errors like:

  error: __ksymtab_azx_get_response causes a section type conflict

Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Cc: <stable@vger.kernel.org> # v3.15+
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-02-24 14:14:55 +01:00
James Hogan
c2996cb29b metag: Fix KSTK_EIP() and KSTK_ESP() macros
The KSTK_EIP() and KSTK_ESP() macros should return the user program
counter (PC) and stack pointer (A0StP) of the given task. These are used
to determine which VMA corresponds to the user stack in
/proc/<pid>/maps, and for the user PC & A0StP in /proc/<pid>/stat.

However for Meta the PC & A0StP from the task's kernel context are used,
resulting in broken output. For example in following /proc/<pid>/maps
output, the 3afff000-3b021000 VMA should be described as the stack:

  # cat /proc/self/maps
  ...
  100b0000-100b1000 rwxp 00000000 00:00 0          [heap]
  3afff000-3b021000 rwxp 00000000 00:00 0

And in the following /proc/<pid>/stat output, the PC is in kernel code
(1074234964 = 0x40078654) and the A0StP is in the kernel heap
(1335981392 = 0x4fa17550):

  # cat /proc/self/stat
  51 (cat) R ... 1335981392 1074234964 ...

Fix the definitions of KSTK_EIP() and KSTK_ESP() to use
task_pt_regs(tsk)->ctx rather than (tsk)->thread.kernel_context. This
gets the registers from the user context stored after the thread info at
the base of the kernel stack, which is from the last entry into the
kernel from userland, regardless of where in the kernel the task may
have been interrupted, which results in the following more correct
/proc/<pid>/maps output:

  # cat /proc/self/maps
  ...
  0800b000-08070000 r-xp 00000000 00:02 207        /lib/libuClibc-0.9.34-git.so
  ...
  100b0000-100b1000 rwxp 00000000 00:00 0          [heap]
  3afff000-3b021000 rwxp 00000000 00:00 0          [stack]

And /proc/<pid>/stat now correctly reports the PC in libuClibc
(134320308 = 0x80190b4) and the A0StP in the [stack] region (989864576 =
0x3b002280):

  # cat /proc/self/stat
  51 (cat) R ... 989864576 134320308 ...

Reported-by: Alexey Brodkin <Alexey.Brodkin@synopsys.com>
Reported-by: Vineet Gupta <Vineet.Gupta1@synopsys.com>
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: linux-metag@vger.kernel.org
Cc: <stable@vger.kernel.org> # v3.9+
2015-02-24 12:54:21 +00:00
Boris Brezillon
0f2cfa8116 drm: atmel-hlcdc: remove useless pm_runtime_put_sync in probe
Remove a useless pm_runtime_put_sync leading to unbalanced
usage_count.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Reported-by: Sylvain Rochet <sylvain.rochet@finsecur.com>
2015-02-24 11:45:11 +01:00
Boris Brezillon
bd4248bb5e drm: atmel-hlcdc: reset layer A2Q and UPDATE bits when disabling it
The A2Q (Add To Queue) and UPDATE bits are left in their previous state
when resetting the layer.
This lead to weird behavior when enabling the plane again: the framebuffer
previously queued is dequeued and we end up with access to an old memory
region.

Reset those bits when resetting the channel.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2015-02-24 11:45:11 +01:00
Thomas Niederprüm
148388f375 ASoC: sta32x: fix register range in regmap.
The STA32X_AUTO3 is a writable register that currently does not appear
in the regmap ranges(neither read nor write). By adding this register
to the register ranges there is no gap anymore and the existing
register ranges can be joined. This fixes a regression introduced in
commit a1be4cead9 where the driver was
moved to direct regmap usage and the STA32X_AUTO3 register was missed.
That made it impossible to choose the preset EQ mode set through the
STA32X_AUTO3 register.

Fixes: a1be4cead9 (ASoC: sta32x: Convert to direct regmap API usage)
Signed-off-by: Thomas Niederprüm <niederp@physik.uni-kl.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-02-24 17:45:31 +09:00
Uwe Kleine-König
34d7c3905a ASoC: improve usage of gpiod API
Since 39b2bbe3d7 (gpio: add flags argument to gpiod_get*() functions)
which appeared in v3.17-rc1, the gpiod_get* functions take an additional
parameter that allows to specify direction and initial value for
output. Simplify drivers accordingly.

Also there is an *_optional variant that serves well here. The sematics
is slightly changed here by using it as error checking is more strict
now: If GPIOLIB is not enabled an error is returned instead of just
ignoring the gpio. On one hand this is bad for devices that don't "have"
the respective gpio as the driver is failing now. On the other hand
there is no means to assert that this gpio is really not needed or if
only the driver to control it is not available. The latter is a real
reason to fail and so it's defensive to fail here, too.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-02-24 17:38:58 +09:00
Bard Liao
850529249d ASoC: rt5670: Set RT5670_IRQ_CTRL1 non volatile
RT5670_IRQ_CTRL1(0xbd) is a non volatile register. And we need to
restore its value after suspend/resume.

Signed-off-by: Bard Liao <bardliao@realtek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
2015-02-24 17:22:39 +09:00
Subhransu S. Prusty
3f2dcbeaeb ASoC: Intel: Remove soc pm handling to allow platform driver handle it
Signed-off-by: Subhransu S. Prusty <subhransu.s.prusty@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-02-24 17:00:36 +09:00
Subhransu S. Prusty
583e58a0f0 ASoC: Intel: Remove ignore suspend support
In our platform we want platform and codec driver routines to get invoked
and don't need the machine routines so remove here

Signed-off-by: Subhransu S. Prusty <subhransu.s.prusty@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-02-24 17:00:35 +09:00
Vinod Koul
9308d1456e ASoC: Intel: Move the fw download to power_control
Thus removing the runtime_resume handler.

Signed-off-by: Subhransu S. Prusty <subhransu.s.prusty@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-02-24 17:00:35 +09:00
Vinod Koul
4a8448d428 ASoC: Intel: add pm support in sst ipc driver
This adds support for system pm support. We need to save the dsp memory
which gets lost on suspend and restore that on resume

Signed-off-by: Subhransu S. Prusty <subhransu.s.prusty@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-02-24 17:00:34 +09:00
Yannick Guerrini
579deee571 x86/platform/intel-mid: Fix trivial printk message typo in intel_mid_arch_setup()
Change 'Uknown' to 'Unknown'

Signed-off-by: Yannick Guerrini <yguerrini@tomshardware.fr>
Cc: trivial@kernel.org
Link: http://lkml.kernel.org/r/1424710358-10140-1-git-send-email-yguerrini@tomshardware.fr
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-02-24 08:52:37 +01:00
Dave Airlie
5b49afd60a Merge tag 'drm-amdkfd-fixes-2015-02-23' of git://people.freedesktop.org/~gabbayo/linux into drm-fixes
- Fix a bug that caused 15% CPU performance drop in Kaveri. This was caused
  because we overwritten the initialization of the first pipe (out of eight),
  which is dedicated to radeon operation. The fix was tested by Michel Dänzer.
  This bug was introduced by a patch I prepared (yeah, my bad) and was merged
  to 3.19-rc6. Therefore, I also marked it as Cc:stable.

- Fix sparse warning
* tag 'drm-amdkfd-fixes-2015-02-23' of git://people.freedesktop.org/~gabbayo/linux:
  drm/amdkfd: don't set get_pipes_num() as inline
  drm/amdkfd: Initialize only amdkfd's assigned pipelines
2015-02-24 11:10:14 +10:00
Dave Airlie
8ee351625e drm/tegra: Fixes for v3.20-rc1
This fixes a bit of fallout that was caused by the atomic modesetting
 driver conversion and some last-minute changes in the DRM atomic core.
 It also fixes a bug exposed by recent changes in the clock framework
 which results in non-working HDMI.
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Merge tag 'drm/tegra/for-3.20-rc1-fixes' of git://anongit.freedesktop.org/tegra/linux into drm-fixes

drm/tegra: Fixes for v3.20-rc1

This fixes a bit of fallout that was caused by the atomic modesetting
driver conversion and some last-minute changes in the DRM atomic core.
It also fixes a bug exposed by recent changes in the clock framework
which results in non-working HDMI.

* tag 'drm/tegra/for-3.20-rc1-fixes' of git://anongit.freedesktop.org/tegra/linux:
  drm/tegra: dc: Move more code into ->init()
  drm/tegra: dc: Wire up CRTC parent of atomic state
  drm/tegra: dc: Reset state's active_changed field
  drm/tegra: hdmi: Explicitly set clock rate
2015-02-24 11:08:47 +10:00
Daniel Vetter
2caa80e72b drm: Fix deadlock due to getconnector locking changes
In commit ccfc08655d
Author: Rob Clark <robdclark@gmail.com>
Date:   Thu Dec 18 16:01:48 2014 -0500

    drm: tweak getconnector locking

We need to extend the locking to cover connector->state reading for
atomic drivers, but the above commit was a bit too eager and also
included the fill_modes callback. Which on i915 on old platforms using
load detection needs to acquire modeset locks, resulting in a deadlock
on output probing.

Reported-by: Marc Finet <m.dreadlock@gmail.com>
Cc: Marc Finet <m.dreadlock@gmail.com>
Cc: robdclark@gmail.com
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2015-02-24 11:05:20 +10:00
Eric Sandeen
83d5f01858 xfs: cancel failed transaction in xfs_fs_commit_blocks()
If xfs_trans_reserve fails we don't cancel the transaction,
and we'll leak the allocated transaction pointer.

Spotted by Coverity.

Signed-off-by: Eric Sandeen <ssandeen@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dave Chinner <david@fromorbit.com>
2015-02-24 10:15:18 +11:00
Eric Sandeen
fc921566f4 xfs: Ensure we have target_ip for RENAME_EXCHANGE
We shouldn't get here with RENAME_EXCHANGE set and no
target_ip, but let's be defensive, because xfs_cross_rename()
will dereference it.

Spotted by Coverity.

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dave Chinner <david@fromorbit.com>
2015-02-24 10:12:55 +11:00
Geert Uytterhoeven
a5cb514f1f drivers: sh: Disable PM runtime for multi-platform r8a7740 with genpd
If the default PM domain using PM_CLK is used for PM runtime, the real PM
domain(s) cannot be registered from DT later.

Hence do not enable it when running a multi-platform kernel with genpd
support on an r8a7740. The R-Mobile PM domain driver will take care of
PM runtime management of the module clocks.

The default PM domain is still needed for:
  - platforms without genpd support,
  - the legacy (non-DT) case, where genpd may take over later, except
    for the C5 "always on" PM domain.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2015-02-24 07:26:12 +09:00
Sasha Levin
f0774d884b mm: shmem: check for mapping owner before dereferencing
mapping->host can be NULL and shouldn't be dereferenced before being checked.

[ 1295.741844] GPF could be caused by NULL-ptr deref or user memory accessgeneral protection fault: 0000 [#1] SMP KASAN
[ 1295.746387] Dumping ftrace buffer:
[ 1295.748217]    (ftrace buffer empty)
[ 1295.749527] Modules linked in:
[ 1295.750268] CPU: 62 PID: 23410 Comm: trinity-c70 Not tainted 3.19.0-next-20150219-sasha-00045-g9130270f #1939
[ 1295.750268] task: ffff8803a49db000 ti: ffff8803a4dc8000 task.ti: ffff8803a4dc8000
[ 1295.750268] RIP: shmem_mapping (mm/shmem.c:1458)
[ 1295.750268] RSP: 0000:ffff8803a4dcfbf8  EFLAGS: 00010206
[ 1295.750268] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 00000000000f2804
[ 1295.750268] RDX: 0000000000000005 RSI: 0400000000000794 RDI: 0000000000000028
[ 1295.750268] RBP: ffff8803a4dcfc08 R08: 0000000000000000 R09: 00000000031de000
[ 1295.750268] R10: dffffc0000000000 R11: 00000000031c1000 R12: 0400000000000794
[ 1295.750268] R13: 00000000031c2000 R14: 00000000031de000 R15: ffff880e3bdc1000
[ 1295.750268] FS:  00007f8703c7e700(0000) GS:ffff881164800000(0000) knlGS:0000000000000000
[ 1295.750268] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1295.750268] CR2: 0000000004e58000 CR3: 00000003a9f3c000 CR4: 00000000000007a0
[ 1295.750268] DR0: ffffffff81000000 DR1: 0000009494949494 DR2: 0000000000000000
[ 1295.750268] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 00000000000d0602
[ 1295.750268] Stack:
[ 1295.750268]  ffff8803a4dcfec8 ffffffffbb1dc770 ffff8803a4dcfc38 ffffffffad6f230b
[ 1295.750268]  ffffffffad6f2b0d 0000014100000000 ffff88001e17c08b ffff880d9453fe08
[ 1295.750268]  ffff8803a4dcfd18 ffffffffad6f2ce2 ffff8803a49dbcd8 ffff8803a49dbce0
[ 1295.750268] Call Trace:
[ 1295.750268] mincore_page (mm/mincore.c:61)
[ 1295.750268] ? mincore_pte_range (include/linux/spinlock.h:312 mm/mincore.c:131)
[ 1295.750268] mincore_pte_range (mm/mincore.c:151)
[ 1295.750268] ? mincore_unmapped_range (mm/mincore.c:113)
[ 1295.750268] __walk_page_range (mm/pagewalk.c:51 mm/pagewalk.c:90 mm/pagewalk.c:116 mm/pagewalk.c:204)
[ 1295.750268] walk_page_range (mm/pagewalk.c:275)
[ 1295.750268] SyS_mincore (mm/mincore.c:191 mm/mincore.c:253 mm/mincore.c:220)
[ 1295.750268] ? mincore_pte_range (mm/mincore.c:220)
[ 1295.750268] ? mincore_unmapped_range (mm/mincore.c:113)
[ 1295.750268] ? __mincore_unmapped_range (mm/mincore.c:105)
[ 1295.750268] ? ptlock_free (mm/mincore.c:24)
[ 1295.750268] ? syscall_trace_enter (arch/x86/kernel/ptrace.c:1610)
[ 1295.750268] ia32_do_call (arch/x86/ia32/ia32entry.S:446)
[ 1295.750268] Code: e5 48 c1 ea 03 53 48 89 fb 48 83 ec 08 80 3c 02 00 75 4f 48 b8 00 00 00 00 00 fc ff df 48 8b 1b 48 8d 7b 28 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 3f 48 b8 00 00 00 00 00 fc ff df 48 8b 5b 28 48

All code
========
   0:	e5 48                	in     $0x48,%eax
   2:	c1 ea 03             	shr    $0x3,%edx
   5:	53                   	push   %rbx
   6:	48 89 fb             	mov    %rdi,%rbx
   9:	48 83 ec 08          	sub    $0x8,%rsp
   d:	80 3c 02 00          	cmpb   $0x0,(%rdx,%rax,1)
  11:	75 4f                	jne    0x62
  13:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  1a:	fc ff df
  1d:	48 8b 1b             	mov    (%rbx),%rbx
  20:	48 8d 7b 28          	lea    0x28(%rbx),%rdi
  24:	48 89 fa             	mov    %rdi,%rdx
  27:	48 c1 ea 03          	shr    $0x3,%rdx
  2b:*	80 3c 02 00          	cmpb   $0x0,(%rdx,%rax,1)		<-- trapping instruction
  2f:	75 3f                	jne    0x70
  31:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  38:	fc ff df
  3b:	48 8b 5b 28          	mov    0x28(%rbx),%rbx
  3f:	48                   	rex.W
	...

Code starting with the faulting instruction
===========================================
   0:	80 3c 02 00          	cmpb   $0x0,(%rdx,%rax,1)
   4:	75 3f                	jne    0x45
   6:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   d:	fc ff df
  10:	48 8b 5b 28          	mov    0x28(%rbx),%rbx
  14:	48                   	rex.W
	...
[ 1295.750268] RIP shmem_mapping (mm/shmem.c:1458)
[ 1295.750268]  RSP <ffff8803a4dcfbf8>

Fixes: 97b713ba3e ("fs: kill BDI_CAP_SWAP_BACKED")
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
2015-02-23 10:00:11 -08:00
Keith Busch
52b68d7ef8 NVMe: Fix for BLK_DEV_INTEGRITY not set
Need to define and use appropriate functions for when BLK_DEV_INTEGRITY
is not set.

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
2015-02-23 09:17:54 -08:00
Boris Ostrovsky
5054daa285 x86/xen: Initialize cr4 shadow for 64-bit PV(H) guests
Commit 1e02ce4ccc ("x86: Store a per-cpu shadow copy of CR4")
introduced CR4 shadows.

These shadows are initialized in early boot code. The commit missed
initialization for 64-bit PV(H) guests that this patch adds.

Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
2015-02-23 16:30:26 +00:00
Juergen Gross
facb5732b0 xen-scsiback: mark pvscsi frontend request consumed only after last read
A request in the ring buffer mustn't be read after it has been marked
as consumed. Otherwise it might already have been reused by the
frontend without violating the ring protocol.

To avoid inconsistencies in the backend only work on a private copy
of the request. This will ensure a malicious guest not being able to
bypass consistency checks of the backend by modifying an active
request.

Signed-off-by: Juergen Gross <jgross@suse.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
2015-02-23 16:30:25 +00:00
David Vrabel
fdfd811ddd x86/xen: allow privcmd hypercalls to be preempted
Hypercalls submitted by user space tools via the privcmd driver can
take a long time (potentially many 10s of seconds) if the hypercall
has many sub-operations.

A fully preemptible kernel may deschedule such as task in any upcall
called from a hypercall continuation.

However, in a kernel with voluntary or no preemption, hypercall
continuations in Xen allow event handlers to be run but the task
issuing the hypercall will not be descheduled until the hypercall is
complete and the ioctl returns to user space.  These long running
tasks may also trigger the kernel's soft lockup detection.

Add xen_preemptible_hcall_begin() and xen_preemptible_hcall_end() to
bracket hypercalls that may be preempted.  Use these in the privcmd
driver.

When returning from an upcall, call xen_maybe_preempt_hcall() which
adds a schedule point if if the current task was within a preemptible
hypercall.

Since _cond_resched() can move the task to a different CPU, clear and
set xen_in_preemptible_hcall around the call.

Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
2015-02-23 16:30:24 +00:00
Boris Ostrovsky
31795b470b x86/xen: Make sure X2APIC_ENABLE bit of MSR_IA32_APICBASE is not set
Commit d524165cb8 ("x86/apic: Check x2apic early") tests X2APIC_ENABLE
bit of MSR_IA32_APICBASE when CONFIG_X86_X2APIC is off and panics
the kernel when this bit is set.

Xen's PV guests will pass this MSR read to the hypervisor which will
return its version of the MSR, where this bit might be set. Make sure
we clear it before returning MSR value to the caller.

Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
2015-02-23 16:30:23 +00:00
Takashi Iwai
70372a7566 ALSA: pcm: Don't leave PREPARED state after draining
When a PCM draining is performed to an empty stream that has been
already in PREPARED state, the current code just ignores and leaves as
it is, although the drain is supposed to set all such streams to SETUP
state.  This patch covers that overlooked case.

Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-02-23 16:48:18 +01:00
Subhransu S. Prusty
5c88b4e91d ASoC: Intel: Add memcpy32_fromio as well
Export 32-bit version of memcpy for use in suspend/resume.

Signed-off-by: Subhransu S. Prusty <subhransu.s.prusty@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-02-24 00:43:59 +09:00
Vinod Koul
54e6beccc6 ASoC: Intel: add support for platform suspend
This adds support for platform suspend and resume. We ensure all pcms are
suspended by invoking snd_soc_suspend() and then stop the DSP

Signed-off-by: Subhransu S. Prusty <subhransu.s.prusty@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-02-24 00:43:59 +09:00
Vinod Koul
fc9406ab9b ASoC: Intel: add support for pcm stream suspend/resume
The driver didn't implement support for pcm stream suspend and resume, so
add it

Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-02-24 00:43:59 +09:00
Vinod Koul
e0b87d476b ASoC: Intel: add support for pause and resume in sst
This adds missing pcm pause and resume ops in the driver

Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-02-24 00:43:59 +09:00
Vinod Koul
7b9ca9d7e5 ASoC: Intel: update MMX ID to 3
The updated firmware expects the MMX ID to be used as 3, so update the
driver as well

Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-02-24 00:43:59 +09:00
Vinod Koul
76ca1c2cd8 ASoC: Intel: mark cht machine driver with nonatomic trigger
The DSP messages are sent with nonatomic context, which include trigger
messages, so mark the driver as nonatomic

Signed-off-by: Subhransu S. Prusty <subhransu.s.prusty@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-02-24 00:43:59 +09:00
Vinod Koul
48c7699fb2 ASoC: core: allow pcms to be registered as nonatomic
ALSA core with commit 257f8cce5d - "ALSA: pcm: Allow nonatomic trigger
operations" allows trigger ops to implemented as nonatomic. For ASoC, we can
specify this in dailinks and is updated while snd_pcm is created

Signed-off-by: Subhransu S. Prusty <subhransu.s.prusty@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Cc: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-02-24 00:43:59 +09:00
Fang, Yang A
369a9f5f39 ASoC: Intel: fix machine driver warnings
this patch will fix below sparse warnings

warning: incorrect type in argument 2 (different base types) expected
unsigned int [unsigned] val got restricted snd_pcm_format_t [usertype]
<noident>

sound/soc/intel/haswell.c:61:37
sound/soc/intel/broadwell.c:115:37:
sound/soc/intel/bytcr_dpcm_rt5640.c:118:37:
sound/soc/intel/cht_bsw_rt5672.c:183:37:
sound/soc/intel/cht_bsw_rt5645.c:208:37:

Signed-off-by: Fang, Yang A <yang.a.fang@intel.com>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-02-24 00:43:19 +09:00
Fang, Yang A
052a9f6982 ALSA: Add params_set_format helper
Add a helper to set pcm format directly from params

Signed-off-by: Fang, Yang A <yang.a.fang@intel.com>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-02-24 00:43:18 +09:00
Vinod Koul
de251d773b ASoC: Intel: reset the DSP while suspending
The manual recommends that we reset the DSP when we suspend so add that in
runtime suspend handler

Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-02-24 00:39:00 +09:00
Vinod Koul
a825ac7678 ASoC: Intel: save and restore the CSR register
The IPC driver saved only IMR register, we need to save the CSR as well, so
add it

Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-02-24 00:38:38 +09:00
Vinod Koul
b3ec1c3538 ASoC: Intel: update MMX ID to 3
The updated firmware expects the MMX ID to be used as 3, so update the
driver as well

Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-02-24 00:37:51 +09:00
Nicolas Saenz Julienne
2f97c20e5f gpio: tps65912: fix wrong container_of arguments
The gpio_chip operations receive a pointer the gpio_chip struct which is
contained in the driver's private struct, yet the container_of call in those
functions point to the mfd struct defined in include/linux/mfd/tps65912.h.

Cc: Stable <stable@vger.kernel.org>
Signed-off-by: Nicolas Saenz Julienne <nicolassaenzj@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-02-23 15:40:32 +01:00
Hans Holmberg
9cf75e9e4d gpiolib: of: allow of_gpiochip_find_and_xlate to find more than one chip per node
The change:

7b8792bbdf
gpiolib: of: Correct error handling in of_get_named_gpiod_flags

assumed that only one gpio-chip is registred per of-node.
Some drivers register more than one chip per of-node, so
adjust the matching function of_gpiochip_find_and_xlate to
not stop looking for chips if a node-match is found and
the translation fails.

Cc: Stable <stable@vger.kernel.org>
Fixes: 7b8792bbdf ("gpiolib: of: Correct error handling in of_get_named_gpiod_flags")
Signed-off-by: Hans Holmberg <hans.holmberg@intel.com>
Acked-by: Alexandre Courbot <acourbot@nvidia.com>
Tested-by: Robert Jarzmik <robert.jarzmik@free.fr>
Tested-by: Tyler Hall <tylerwhall@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-02-23 15:40:32 +01:00
Jakub Sitnicki
ef567cf9dd HID: microsoft: Add ID for NE7K wireless keyboard
Microsoft Natural Wireless Ergonomic Keyboard 7000 has special My
Favorites 1..5 keys which are handled through a vendor-defined usage
page (0xff05).

Apply MS_ERGONOMY quirks handling to USB PID 0x071d (Microsoft Microsoft
2.4GHz Transceiver V1.0) so that the My Favorites 1..5 keys are reported
as KEY_F14..18 events.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=52841
Signed-off-by: Jakub Sitnicki <jsitnicki@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2015-02-23 15:28:40 +01:00
Seth Forshee
6d00f37e49 HID: i2c-hid: Limit reads to wMaxInputLength bytes for input events
d1c7e29e8d (HID: i2c-hid: prevent buffer overflow in early IRQ)
changed hid_get_input() to read ihid->bufsize bytes, which can be
more than wMaxInputLength. This is the case with the Dell XPS 13
9343, and it is causing events to be missed. In some cases the
missed events are releases, which can cause the cursor to jump or
freeze, among other problems. Limit the number of bytes read to
min(wMaxInputLength, ihid->bufsize) to prevent such problems.

Fixes: d1c7e29e8d "HID: i2c-hid: prevent buffer overflow in early IRQ"
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2015-02-23 15:10:04 +01:00
Jani Nikula
cf6f0af9fb drm/i915: Dell Chromebook 11 has PWM backlight
Add quirk for Dell Chromebook 11 backlight.

Reported-and-tested-by: Owen Garland <garland.owen@gmail.com>
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=93451
Acked-by: Damien Lespiau <damien.lespiau@intel.com>
Cc: stable@vger.kernel.org
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2015-02-23 15:12:49 +02:00
Jani Nikula
f75fb42a61 drm/i915/skl: handle all pixel formats in skylake_update_primary_plane()
skylake_update_primary_plane() did not handle all pixel formats returned
by skl_format_to_fourcc(). Handle alpha similar to skl_update_plane().

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=89052
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2015-02-23 15:07:11 +02:00
Frank Praznik
b94993f6fb HID: sony: fix uninitialized per-controller spinlock
Per-controller spinlock needs to be properly initialized during device probe.

[jkosina@suse.cz: massage changelog]
[jkosina@suse.cz: drop hunk that has already been applied by previous
 patch]
Signed-off-by: Frank Praznik <frank.praznik@oh.rr.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2015-02-23 13:01:15 +01:00
Dave Chinner
5885ebda87 xfs: ensure truncate forces zeroed blocks to disk
A new fsync vs power fail test in xfstests indicated that XFS can
have unreliable data consistency when doing extending truncates that
require block zeroing. The blocks beyond EOF get zeroed in memory,
but we never force those changes to disk before we run the
transaction that extends the file size and exposes those blocks to
userspace. This can result in the blocks not being correctly zeroed
after a crash.

Because in-memory behaviour is correct, tools like fsx don't pick up
any coherency problems - it's not until the filesystem is shutdown
or the system crashes after writing the truncate transaction to the
journal but before the zeroed data in the page cache is flushed that
the issue is exposed.

Fix this by also flushing the dirty data in memory region between
the old size and new size when we've found blocks that need zeroing
in the truncate process.

Reported-by: Liu Bo <bo.li.liu@oracle.com>
cc: <stable@vger.kernel.org>
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
2015-02-23 22:37:08 +11:00
Jan Kara
dfcc70a8c8 xfs: Fix quota type in quota structures when reusing quota file
For filesystems without separate project quota inode field in the
superblock we just reuse project quota file for group quotas (and vice
versa) if project quota file is allocated and we need group quota file.
When we reuse the file, quota structures on disk suddenly have wrong
type stored in d_flags though. Nobody really cares about this (although
structure type reported to userspace was wrong as well) except
that after commit 14bf61ffe6 (quota: Switch ->get_dqblk() and
->set_dqblk() to use bytes as space units) assertion in
xfs_qm_scall_getquota() started to trigger on xfs/106 test (apparently I
was testing without XFS_DEBUG so I didn't notice when submitting the
above commit).

Fix the problem by properly resetting ddq->d_flags when running quotacheck
for a quota file.

CC: stable@vger.kernel.org
Reported-by: Al Viro <viro@ZenIV.linux.org.uk>
Signed-off-by: Jan Kara <jack@suse.cz>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
2015-02-23 22:34:17 +11:00
Jiri Kosina
8b402c929d HID: sony: initialize sony_dev_list_lock properly
sony_dev_list_lock spinlock (which was introduced in d2d782fcce ("HID: sony:
Prevent duplicate controller connections") is not being initialized properly.
Fix that.

Reported-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2015-02-23 11:15:44 +01:00
Rodrigo Vivi
0dc6f20b98 drm/i915/bdw: PCI IDs ending in 0xb are ULT.
When reviewing patch that fixes VGA on BDW Halo Jani noticed that
we also had other ULT IDs that weren't listed there.

So this follow-up patch add these pci-ids as halo and fix comments
on i915_pciids.h

Cc: Jani Nikula <jani.nikula@intel.com>
Cc: stable@vger.kernel.org
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2015-02-23 11:31:18 +02:00