Pull drm fixes from Dave Airlie:
 "This weeks instalment of fixes:

  amdgpu:
     Lots of memory leak and firmware leak fixes

  nouveau:
     Collection of display fixes, KASAN fixes

  vc4:
     vblank/pageflipping fixes

  fsl-dcu:
     Regmap cache fix

  omap:
     Unused variable warning fix.

  Nothing too surprising so far"

* tag 'drm-fixes-for-v4.7-rc3' of git://people.freedesktop.org/~airlied/linux: (46 commits)
  drm/amdgpu: fix warning with powerplay disabled.
  drm/amd/powerplay: delete useless code as pptable changed in vbios.
  drm/amd/powerplay: fix bug visit array out of bounds
  drm/amdgpu: fix smu ucode memleak (v2)
  drm/amdgpu: add release firmware for cgs
  drm/amdgpu: fix tonga smu_fini mem leak
  drm/amdgpu: fix fiji smu fini mem leak
  drm/amdgpu: fix cik sdma ucode memleak
  drm/amdgpu: fix sdma24 ucode mem leak
  drm/amdgpu: fix sdma3 ucode mem leak
  drm/amdgpu: fix uvd fini mem leak
  drm/amdgpu: fix gfx 7 ucode mem leak
  drm/amdgpu: fix gfx8 ucode mem leak
  drm/amdgpu: fix missing free wb for cond_exec
  drm/amdgpu: fix memleak in pptable_init
  drm/amdgpu: fix mem leak in atombios
  drm/amdgpu: fix mem leak in pplib/hwmgr
  drm/amdgpu: fix mem leak in smumgr
  drm/amdgpu: add pipeline sync while vmid switch in same ctx
  drm/amdgpu: vBIOS post only call when mem_size zero
  ...

Pull ACPI fix from Rafael Wysocki:
 "A recently introduced boot regression related to the ACPI EC
  initialization is addressed by restoring the previous behavior (Lv
  Zheng)"

* tag 'acpi-4.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI / EC: Fix a boot EC regresion by restoring boot EC support for the DSDT EC

Pull power management fixes from Rafael Wysocki:
 "Stable-candidate fixes for the intel_pstate driver and the cpuidle
  core.

  Specifics:

   - Fix two intel_pstate initialization issues, one of which was
     introduced during the 4.4 cycle (Srinivas Pandruvada)

   - Fix kernel build with CONFIG_UBSAN set and CONFIG_CPU_IDLE unset
     (Catalin Marinas)"

* tag 'pm-4.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  cpufreq: intel_pstate: Fix ->set_policy() interface for no_turbo
  cpufreq: intel_pstate: Fix code ordering in intel_pstate_set_policy()
  cpuidle: Do not access cpuidle_devices when !CONFIG_CPU_IDLE

Merge misc fixes from Andrew Morton:
 "7 fixes"

* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
  mm/fadvise.c: do not discard partial pages with POSIX_FADV_DONTNEED
  mm: introduce dedicated WQ_MEM_RECLAIM workqueue to do lru_add_drain_all
  kernel/relay.c: fix potential memory leak
  mm: thp: broken page count after commit aa88b68c
  revert "mm: memcontrol: fix possible css ref leak on oom"
  kasan: change memory hot-add error messages to info messages
  mm/hugetlb: fix huge page reserve accounting for private mappings

* 'fixes-for-v4.7-rc3' of http://git.agner.ch/git/linux-drm-fsl-dcu:
  drm/fsl-dcu: use flat regmap cache

This just fixes a warning when you disable powerplay.
Signed-off-by: Dave Airlie <airlied@redhat.com>

Mostly memory leak and firmware leak fixes for amdgpu.  A bit bigger than
usual since this is several weeks worth of fixes.

* 'drm-fixes-4.7' of git://people.freedesktop.org/~agd5f/linux: (28 commits)
  drm/amd/powerplay: delete useless code as pptable changed in vbios.
  drm/amd/powerplay: fix bug visit array out of bounds
  drm/amdgpu: fix smu ucode memleak (v2)
  drm/amdgpu: add release firmware for cgs
  drm/amdgpu: fix tonga smu_fini mem leak
  drm/amdgpu: fix fiji smu fini mem leak
  drm/amdgpu: fix cik sdma ucode memleak
  drm/amdgpu: fix sdma24 ucode mem leak
  drm/amdgpu: fix sdma3 ucode mem leak
  drm/amdgpu: fix uvd fini mem leak
  drm/amdgpu: fix gfx 7 ucode mem leak
  drm/amdgpu: fix gfx8 ucode mem leak
  drm/amdgpu: fix missing free wb for cond_exec
  drm/amdgpu: fix memleak in pptable_init
  drm/amdgpu: fix mem leak in atombios
  drm/amdgpu: fix mem leak in pplib/hwmgr
  drm/amdgpu: fix mem leak in smumgr
  drm/amdgpu: add pipeline sync while vmid switch in same ctx
  drm/amdgpu: vBIOS post only call when mem_size zero
  drm/amdgpu: modify sdma start sequence
  ...

* 'msm-fixes-4.7-rc3' of git://people.freedesktop.org/~robclark/linux:
  drm/msm: fix potential submit error path issue
  drm/msm: fix some crashes in submit fail path
  drm/msm: deal with exhausted vmap space better

* pm-cpufreq-fixes:
  cpufreq: intel_pstate: Fix ->set_policy() interface for no_turbo
  cpufreq: intel_pstate: Fix code ordering in intel_pstate_set_policy()

* pm-cpuidle:
  cpuidle: Do not access cpuidle_devices when !CONFIG_CPU_IDLE

* acpi-ec:
  ACPI / EC: Fix a boot EC regresion by restoring boot EC support for the DSDT EC

Pull rdma fixes from Doug Ledford:
 "This is the first -rc pull for the RDMA subsystem.  The patch count is
  high, but they are all smallish patches fixing simple things for the
  most part, and the overall line count of changes here is smaller than
  the patch count would lead a person to believe.

  Code is up and running in my labs, including direct testing of cxgb4,
  mlx4, mlx5, ocrdma, and qib.

  Summary:

   - Multiple minor fixes to the rdma core
   - Multiple minor fixes to hfi1
   - Multiple minor fixes to mlx5
   - A very few other minor fixes (SRP, IPoIB, usNIC, mlx4)"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (35 commits)
  IB/IPoIB: Don't update neigh validity for unresolved entries
  IB/mlx5: Fix alternate path code
  IB/mlx5: Fix pkey_index length in the QP path record
  IB/mlx5: Fix entries check in mlx5_ib_resize_cq
  IB/mlx5: Fix entries checks in mlx5_ib_create_cq
  IB/mlx5: Check BlueFlame HCA support
  IB/mlx5: Fix returned values of query QP
  IB/mlx5: Limit query HCA clock
  IB/mlx5: Fix FW version diaplay in sysfs
  IB/mlx5: Return PORT_ERR in Active to Initializing tranisition
  IB/mlx5: Set flow steering capability bit
  IB/core: Make all casts in ib_device_cap_flags enum consistent
  IB/core: Fix bit curruption in ib_device_cap_flags structure
  IB/core: Initialize sysfs attributes before sysfs create group
  IB/IPoIB: Disable bottom half when dealing with device address
  IB/core: Fix removal of default GID cache entry
  IB/IPoIB: Fix race between ipoib_remove_one to sysfs functions
  IB/core: Fix query port failure in RoCE
  IB/core: fix error unwind in sysfs hw counters code
  IB/core: Fix array length allocation
  ...

Pull ARC fixes from Vineet Gupta:

 - Revert of ll-sc backoff retry workaround in atomics/spinlocks as
   hardware is now proven to work just fine

 - Typo fixes (Thanks Andrea Gelmini)

 - Removal of obsolete DT property (Alexey)

 - Other minor fixes

* tag 'arc-4.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
  Revert "ARCv2: spinlock/rwlock/atomics: Delayed retry of failed SCOND with exponential backoff"
  Revert "ARCv2: spinlock/rwlock: Reset retry delay when starting a new spin-wait cycle"
  Revert "ARCv2: spinlock/rwlock/atomics: reduce 1 instruction in exponential backoff"
  ARC: don't enable DISCONTIGMEM unconditionally
  ARC: [intc-compact] simplify code for 2 priority levels
  arc: Get rid of root core-frequency property
  Fix typos

I noticed that the logic in the fadvise64_64 syscall is incorrect for
partial pages.  While first page of the region is correctly skipped if
it is partial, the last page of the region is mistakenly discarded.
This leads to problems for applications that read data in
non-page-aligned chunks discarding already processed data between the
reads.

A somewhat misguided application that does something like write(XX bytes
(non-page-alligned)); drop the data it just wrote; repeat gets a
significant penalty in performance as a result.

Link: http://lkml.kernel.org/r/1464917140-1506698-1-git-send-email-green@linuxhacker.ruSigned-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

This patch is based on https://patchwork.ozlabs.org/patch/574623/.

Tejun submitted commit 23d11a58 ("workqueue: skip flush dependency
checks for legacy workqueues") for the legacy create*_workqueue()
interface.

But some workq created by alloc_workqueue still reports warning on
memory reclaim, e.g nvme_workq with flag WQ_MEM_RECLAIM set:

    workqueue: WQ_MEM_RECLAIM nvme:nvme_reset_work is flushing !WQ_MEM_RECLAIM events:lru_add_drain_per_cpu
    ------------[ cut here ]------------
    WARNING: CPU: 0 PID: 6 at SoC/linux/kernel/workqueue.c:2448 check_flush_dependency+0xb4/0x10c
    ...
    check_flush_dependency+0xb4/0x10c
    flush_work+0x54/0x140
    lru_add_drain_all+0x138/0x188
    migrate_prep+0xc/0x18
    alloc_contig_range+0xf4/0x350
    cma_alloc+0xec/0x1e4
    dma_alloc_from_contiguous+0x38/0x40
    __dma_alloc+0x74/0x25c
    nvme_alloc_queue+0xcc/0x36c
    nvme_reset_work+0x5c4/0xda8
    process_one_work+0x128/0x2ec
    worker_thread+0x58/0x434
    kthread+0xd4/0xe8
    ret_from_fork+0x10/0x50

That's because lru_add_drain_all() will schedule the drain work on
system_wq, whose flag is set to 0, !WQ_MEM_RECLAIM.

Introduce a dedicated WQ_MEM_RECLAIM workqueue to do
lru_add_drain_all(), aiding in getting memory freed.

Link: http://lkml.kernel.org/r/1464917521-9775-1-git-send-email-shhuiw@foxmail.comSigned-off-by: Wang Sheng-Hui <shhuiw@foxmail.com>
Acked-by: Tejun Heo <tj@kernel.org>
Cc: Keith Busch <keith.busch@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thierry Reding <treding@nvidia.com>
Cc: Ingo Molnar <mingo@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

When relay_open_buf() fails in relay_open(), code will goto free_bufs,
but chan is nowhere freed.

Link: http://lkml.kernel.org/r/1464777927-19675-1-git-send-email-yizhouzhou@ict.ac.cnSigned-off-by: Zhouyi Zhou <zhouzhouyi@gmail.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Christian Borntraeger reported a kernel panic after corrupt page counts,
and it turned out to be a regression introduced with commit aa88b68c
("thp: keep huge zero page pinned until tlb flush"), at least on s390.

put_huge_zero_page() was moved over from zap_huge_pmd() to
release_pages(), and it was replaced by tlb_remove_page().  However,
release_pages() might not always be triggered by (the arch-specific)
tlb_remove_page().

On s390 we call free_page_and_swap_cache() from tlb_remove_page(), and
not tlb_flush_mmu() -> free_pages_and_swap_cache() like the generic
version, because we don't use the MMU-gather logic.  Although both
functions have very similar names, they are doing very unsimilar things,
in particular free_page_xxx is just doing a put_page(), while
free_pages_xxx calls release_pages().

This of course results in very harmful put_page()s on the huge zero
page, on architectures where tlb_remove_page() is implemented in this
way.  It seems to affect only s390 and sh, but sh doesn't have THP
support, so the problem (currently) probably only exists on s390.

The following quick hack fixed the issue:

Link: http://lkml.kernel.org/r/20160602172141.75c006a9@thinkpadSigned-off-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Reported-by: Christian Borntraeger <borntraeger@de.ibm.com>
Tested-by: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: "Kirill A. Shutemov" <kirill@shutemov.name>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Hugh Dickins <hughd@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: <stable@vger.kernel.org>	[4.6.x]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Revert commit 1383399d ("mm: memcontrol: fix possible css ref leak
on oom").  Johannes points out "There is a task_in_memcg_oom() check
before calling mem_cgroup_oom()".
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Vladimir Davydov <vdavydov@virtuozzo.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Change the following memory hot-add error messages to info messages.
There is no need for these to be errors.

   kasan: WARNING: KASAN doesn't support memory hot-add
   kasan: Memory hot-add will be disabled

Link: http://lkml.kernel.org/r/1464794430-5486-1-git-send-email-shuahkh@osg.samsung.comSigned-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Acked-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

When creating a private mapping of a hugetlbfs file, it is possible to
unmap pages via ftruncate or fallocate hole punch.  If subsequent faults
repopulate these mappings, the reserve counts will go negative.  This is
because the code currently assumes all faults to private mappings will
consume reserves.  The problem can be recreated as follows:

 - mmap(MAP_PRIVATE) a file in hugetlbfs filesystem
 - write fault in pages in the mapping
 - fallocate(FALLOC_FL_PUNCH_HOLE) some pages in the mapping
 - write fault in pages in the hole

This will result in negative huge page reserve counts and negative
subpool usage counts for the hugetlbfs.  Note that this can also be
recreated with ftruncate, but fallocate is more straight forward.

This patch modifies the routines vma_needs_reserves and vma_has_reserves
to examine the reserve map associated with private mappings similar to
that for shared mappings.  However, the reserve map semantics for
private and shared mappings are very different.  This results in subtly
different code that is explained in the comments.

Link: http://lkml.kernel.org/r/1464720957-15698-1-git-send-email-mike.kravetz@oracle.comSigned-off-by: Mike Kravetz <mike.kravetz@oracle.com>
Acked-by: Hillf Danton <hillf.zj@alibaba-inc.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Kirill Shutemov <kirill.shutemov@linux.intel.com>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Aneesh Kumar <aneesh.kumar@linux.vnet.ibm.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

The vbios table changed so this code is useless now.
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Properly release the smu ucode in powerplay.

v2: agd: add polaris as well
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>

Powerplay uses cgs to load the firmware so add a function
to release it as well to avoid leaking it on driver unload.
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>

Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@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>

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>

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>

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>

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>

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>

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>

Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@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>

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>

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>

Since vmid-mgr supports vmid sharing in one vm, the same ctx could
get different vmids for two emits without vm flush, vm_flush could
be done in another ring.
Signed-off-by: Chunming Zhou <David1.Zhou@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

should fist halt engine, and then doing the register
programing, and later unhalt engine, and finally run
ring_test.

this help fix reloading driver hang issue of SDMA
ring

original sequence is wrong for it programing engine
after unhalt, which will lead to fault behavior when
doing driver reloading after unloaded.
Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

This help fix reloading driver hang issue of SDMA
ring
Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>