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Commit Graph

49050 Commits

Author SHA1 Message Date
Ingo Molnar
c3edc4010e sched/headers: Move task_struct::signal and task_struct::sighand types and accessors into <linux/sched/signal.h>
task_struct::signal and task_struct::sighand are pointers, which would normally make it
straightforward to not define those types in sched.h.

That is not so, because the types are accompanied by a myriad of APIs (macros and inline
functions) that dereference them.

Split the types and the APIs out of sched.h and move them into a new header, <linux/sched/signal.h>.

With this change sched.h does not know about 'struct signal' and 'struct sighand' anymore,
trying to put accessors into sched.h as a test fails the following way:

  ./include/linux/sched.h: In function ‘test_signal_types’:
  ./include/linux/sched.h:2461:18: error: dereferencing pointer to incomplete type ‘struct signal_struct’
                    ^

This reduces the size and complexity of sched.h significantly.

Update all headers and .c code that relied on getting the signal handling
functionality from <linux/sched.h> to include <linux/sched/signal.h>.

The list of affected files in the preparatory patch was partly generated by
grepping for the APIs, and partly by doing coverage build testing, both
all[yes|mod|def|no]config builds on 64-bit and 32-bit x86, and an array of
cross-architecture builds.

Nevertheless some (trivial) build breakage is still expected related to rare
Kconfig combinations and in-flight patches to various kernel code, but most
of it should be handled by this patch.

Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-03-03 01:43:37 +01:00
Ingo Molnar
68e21be291 sched/headers: Move task->mm handling methods to <linux/sched/mm.h>
Move the following task->mm helper APIs into a new header file,
<linux/sched/mm.h>, to further reduce the size and complexity
of <linux/sched.h>.

Here are how the APIs are used in various kernel files:

  # mm_alloc():
  arch/arm/mach-rpc/ecard.c
  fs/exec.c
  include/linux/sched/mm.h
  kernel/fork.c

  # __mmdrop():
  arch/arc/include/asm/mmu_context.h
  include/linux/sched/mm.h
  kernel/fork.c

  # mmdrop():
  arch/arm/mach-rpc/ecard.c
  arch/m68k/sun3/mmu_emu.c
  arch/x86/mm/tlb.c
  drivers/gpu/drm/amd/amdkfd/kfd_process.c
  drivers/gpu/drm/i915/i915_gem_userptr.c
  drivers/infiniband/hw/hfi1/file_ops.c
  drivers/vfio/vfio_iommu_spapr_tce.c
  fs/exec.c
  fs/proc/base.c
  fs/proc/task_mmu.c
  fs/proc/task_nommu.c
  fs/userfaultfd.c
  include/linux/mmu_notifier.h
  include/linux/sched/mm.h
  kernel/fork.c
  kernel/futex.c
  kernel/sched/core.c
  mm/khugepaged.c
  mm/ksm.c
  mm/mmu_context.c
  mm/mmu_notifier.c
  mm/oom_kill.c
  virt/kvm/kvm_main.c

  # mmdrop_async_fn():
  include/linux/sched/mm.h

  # mmdrop_async():
  include/linux/sched/mm.h
  kernel/fork.c

  # mmget_not_zero():
  fs/userfaultfd.c
  include/linux/sched/mm.h
  mm/oom_kill.c

  # mmput():
  arch/arc/include/asm/mmu_context.h
  arch/arc/kernel/troubleshoot.c
  arch/frv/mm/mmu-context.c
  arch/powerpc/platforms/cell/spufs/context.c
  arch/sparc/include/asm/mmu_context_32.h
  drivers/android/binder.c
  drivers/gpu/drm/etnaviv/etnaviv_gem.c
  drivers/gpu/drm/i915/i915_gem_userptr.c
  drivers/infiniband/core/umem.c
  drivers/infiniband/core/umem_odp.c
  drivers/infiniband/core/uverbs_main.c
  drivers/infiniband/hw/mlx4/main.c
  drivers/infiniband/hw/mlx5/main.c
  drivers/infiniband/hw/usnic/usnic_uiom.c
  drivers/iommu/amd_iommu_v2.c
  drivers/iommu/intel-svm.c
  drivers/lguest/lguest_user.c
  drivers/misc/cxl/fault.c
  drivers/misc/mic/scif/scif_rma.c
  drivers/oprofile/buffer_sync.c
  drivers/vfio/vfio_iommu_type1.c
  drivers/vhost/vhost.c
  drivers/xen/gntdev.c
  fs/exec.c
  fs/proc/array.c
  fs/proc/base.c
  fs/proc/task_mmu.c
  fs/proc/task_nommu.c
  fs/userfaultfd.c
  include/linux/sched/mm.h
  kernel/cpuset.c
  kernel/events/core.c
  kernel/events/uprobes.c
  kernel/exit.c
  kernel/fork.c
  kernel/ptrace.c
  kernel/sys.c
  kernel/trace/trace_output.c
  kernel/tsacct.c
  mm/memcontrol.c
  mm/memory.c
  mm/mempolicy.c
  mm/migrate.c
  mm/mmu_notifier.c
  mm/nommu.c
  mm/oom_kill.c
  mm/process_vm_access.c
  mm/rmap.c
  mm/swapfile.c
  mm/util.c
  virt/kvm/async_pf.c

  # mmput_async():
  include/linux/sched/mm.h
  kernel/fork.c
  mm/oom_kill.c

  # get_task_mm():
  arch/arc/kernel/troubleshoot.c
  arch/powerpc/platforms/cell/spufs/context.c
  drivers/android/binder.c
  drivers/gpu/drm/etnaviv/etnaviv_gem.c
  drivers/infiniband/core/umem.c
  drivers/infiniband/core/umem_odp.c
  drivers/infiniband/hw/mlx4/main.c
  drivers/infiniband/hw/mlx5/main.c
  drivers/infiniband/hw/usnic/usnic_uiom.c
  drivers/iommu/amd_iommu_v2.c
  drivers/iommu/intel-svm.c
  drivers/lguest/lguest_user.c
  drivers/misc/cxl/fault.c
  drivers/misc/mic/scif/scif_rma.c
  drivers/oprofile/buffer_sync.c
  drivers/vfio/vfio_iommu_type1.c
  drivers/vhost/vhost.c
  drivers/xen/gntdev.c
  fs/proc/array.c
  fs/proc/base.c
  fs/proc/task_mmu.c
  include/linux/sched/mm.h
  kernel/cpuset.c
  kernel/events/core.c
  kernel/exit.c
  kernel/fork.c
  kernel/ptrace.c
  kernel/sys.c
  kernel/trace/trace_output.c
  kernel/tsacct.c
  mm/memcontrol.c
  mm/memory.c
  mm/mempolicy.c
  mm/migrate.c
  mm/mmu_notifier.c
  mm/nommu.c
  mm/util.c

  # mm_access():
  fs/proc/base.c
  include/linux/sched/mm.h
  kernel/fork.c
  mm/process_vm_access.c

  # mm_release():
  arch/arc/include/asm/mmu_context.h
  fs/exec.c
  include/linux/sched/mm.h
  include/uapi/linux/sched.h
  kernel/exit.c
  kernel/fork.c

Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-03-03 01:43:28 +01:00
Ingo Molnar
589ee62844 sched/headers: Prepare to remove the <linux/mm_types.h> dependency from <linux/sched.h>
Update code that relied on sched.h including various MM types for them.

This will allow us to remove the <linux/mm_types.h> include from <linux/sched.h>.

Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-03-02 08:42:37 +01:00
Ingo Molnar
68db0cf106 sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task_stack.h>
We are going to split <linux/sched/task_stack.h> out of <linux/sched.h>, which
will have to be picked up from other headers and a couple of .c files.

Create a trivial placeholder <linux/sched/task_stack.h> file that just
maps to <linux/sched.h> to make this patch obviously correct and
bisectable.

Include the new header in the files that are going to need it.

Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-03-02 08:42:36 +01:00
Ingo Molnar
299300258d sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task.h>
We are going to split <linux/sched/task.h> out of <linux/sched.h>, which
will have to be picked up from other headers and a couple of .c files.

Create a trivial placeholder <linux/sched/task.h> file that just
maps to <linux/sched.h> to make this patch obviously correct and
bisectable.

Include the new header in the files that are going to need it.

Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-03-02 08:42:35 +01:00
Ingo Molnar
ef8bd77f33 sched/headers: Prepare for new header dependencies before moving code to <linux/sched/hotplug.h>
We are going to split <linux/sched/hotplug.h> out of <linux/sched.h>, which
will have to be picked up from other headers and a couple of .c files.

Create a trivial placeholder <linux/sched/hotplug.h> file that just
maps to <linux/sched.h> to make this patch obviously correct and
bisectable.

Include the new header in the files that are going to need it.

Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-03-02 08:42:35 +01:00
Ingo Molnar
b17b01533b sched/headers: Prepare for new header dependencies before moving code to <linux/sched/debug.h>
We are going to split <linux/sched/debug.h> out of <linux/sched.h>, which
will have to be picked up from other headers and a couple of .c files.

Create a trivial placeholder <linux/sched/debug.h> file that just
maps to <linux/sched.h> to make this patch obviously correct and
bisectable.

Include the new header in the files that are going to need it.

Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-03-02 08:42:34 +01:00
Ingo Molnar
174cd4b1e5 sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>
Fix up affected files that include this signal functionality via sched.h.

Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-03-02 08:42:32 +01:00
Ingo Molnar
5b825c3af1 sched/headers: Prepare to remove <linux/cred.h> inclusion from <linux/sched.h>
Add #include <linux/cred.h> dependencies to all .c files rely on sched.h
doing that for them.

Note that even if the count where we need to add extra headers seems high,
it's still a net win, because <linux/sched.h> is included in over
2,200 files ...

Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-03-02 08:42:31 +01:00
Ingo Molnar
010426079e sched/headers: Prepare for new header dependencies before moving more code to <linux/sched/mm.h>
We are going to split more MM APIs out of <linux/sched.h>, which
will have to be picked up from a couple of .c files.

The APIs that we are going to move are:

  arch_pick_mmap_layout()
  arch_get_unmapped_area()
  arch_get_unmapped_area_topdown()
  mm_update_next_owner()

Include the header in the files that are going to need it.

Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-03-02 08:42:30 +01:00
Ingo Molnar
3f07c01441 sched/headers: Prepare for new header dependencies before moving code to <linux/sched/signal.h>
We are going to split <linux/sched/signal.h> out of <linux/sched.h>, which
will have to be picked up from other headers and a couple of .c files.

Create a trivial placeholder <linux/sched/signal.h> file that just
maps to <linux/sched.h> to make this patch obviously correct and
bisectable.

Include the new header in the files that are going to need it.

Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-03-02 08:42:29 +01:00
Ingo Molnar
6e84f31522 sched/headers: Prepare for new header dependencies before moving code to <linux/sched/mm.h>
We are going to split <linux/sched/mm.h> out of <linux/sched.h>, which
will have to be picked up from other headers and a couple of .c files.

Create a trivial placeholder <linux/sched/mm.h> file that just
maps to <linux/sched.h> to make this patch obviously correct and
bisectable.

The APIs that are going to be moved first are:

   mm_alloc()
   __mmdrop()
   mmdrop()
   mmdrop_async_fn()
   mmdrop_async()
   mmget_not_zero()
   mmput()
   mmput_async()
   get_task_mm()
   mm_access()
   mm_release()

Include the new header in the files that are going to need it.

Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-03-02 08:42:28 +01:00
Ingo Molnar
ae7e81c077 sched/headers: Prepare for new header dependencies before moving code to <uapi/linux/sched/types.h>
We are going to move scheduler ABI details to <uapi/linux/sched/types.h>,
which will be used from a number of .c files.

Create empty placeholder header that maps to <linux/types.h>.

Include the new header in the files that are going to need it.

Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-03-02 08:42:27 +01:00
Ingo Molnar
e601757102 sched/headers: Prepare for new header dependencies before moving code to <linux/sched/clock.h>
We are going to split <linux/sched/clock.h> out of <linux/sched.h>, which
will have to be picked up from other headers and .c files.

Create a trivial placeholder <linux/sched/clock.h> file that just
maps to <linux/sched.h> to make this patch obviously correct and
bisectable.

Include the new header in the files that are going to need it.

Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-03-02 08:42:27 +01:00
Ingo Molnar
105ab3d8ce sched/headers: Prepare for new header dependencies before moving code to <linux/sched/topology.h>
We are going to split <linux/sched/topology.h> out of <linux/sched.h>, which
will have to be picked up from other headers and a couple of .c files.

Create a trivial placeholder <linux/sched/topology.h> file that just
maps to <linux/sched.h> to make this patch obviously correct and
bisectable.

Include the new header in the files that are going to need it.

Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-03-02 08:42:26 +01:00
Linus Torvalds
d4f4cf77b3 Merge branch 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm
Pull ARM updates from Russell King:

 - nommu updates from Afzal Mohammed cleaning up the vectors support

 - allow DMA memory "mapping" for nommu Benjamin Gaignard

 - fixing a correctness issue with R_ARM_PREL31 relocations in the
   module linker

 - add strlen() prototype for the decompressor

 - support for DEBUG_VIRTUAL from Florian Fainelli

 - adjusting memory bounds after memory reservations have been
   registered

 - unipher cache handling updates from Masahiro Yamada

 - initrd and Thumb Kconfig cleanups

* 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm: (23 commits)
  ARM: mm: round the initrd reservation to page boundaries
  ARM: mm: clean up initrd initialisation
  ARM: mm: move initrd init code out of arm_memblock_init()
  ARM: 8655/1: improve NOMMU definition of pgprot_*()
  ARM: 8654/1: decompressor: add strlen prototype
  ARM: 8652/1: cache-uniphier: clean up active way setup code
  ARM: 8651/1: cache-uniphier: include <linux/errno.h> instead of <linux/types.h>
  ARM: 8650/1: module: handle negative R_ARM_PREL31 addends correctly
  ARM: 8649/2: nommu: remove Hivecs configuration is asm
  ARM: 8648/2: nommu: display vectors base
  ARM: 8647/2: nommu: dynamic exception base address setting
  ARM: 8646/1: mmu: decouple VECTORS_BASE from Kconfig
  ARM: 8644/1: Reduce "CPU: shutdown" message to debug level
  ARM: 8641/1: treewide: Replace uses of virt_to_phys with __pa_symbol
  ARM: 8640/1: Add support for CONFIG_DEBUG_VIRTUAL
  ARM: 8639/1: Define KERNEL_START and KERNEL_END
  ARM: 8638/1: mtd: lart: Rename partition defines to be prefixed with PART_
  ARM: 8637/1: Adjust memory boundaries after reservations
  ARM: 8636/1: Cleanup sanity_check_meminfo
  ARM: add CPU_THUMB_CAPABLE to indicate possible Thumb support
  ...
2017-02-28 11:50:53 -08:00
Russell King
17a870bea3 Merge branches 'fixes' and 'misc'; commit 'kuser^{/add CPU_THUMB_CAPABLE to indicate}' into for-linus 2017-02-28 11:08:11 +00:00
Russell King
cdcc5fa041 ARM: mm: round the initrd reservation to page boundaries
Round the initrd memblock reservation to page boundaries to prevent
other data sharing the initrd pages.  This prevents an allocation
possibly overlapping with the initrd, which would later get trampled
on in free_initrd_mem().

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2017-02-28 11:06:22 +00:00
Russell King
68b32f361f ARM: mm: clean up initrd initialisation
Rather than repeatedly testing phys_initrd_size to see if the initrd
is still enabled, return from the new function to avoid executing the
remaining initialisation.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2017-02-28 11:06:21 +00:00
Russell King
3928624812 ARM: mm: move initrd init code out of arm_memblock_init()
Move the ARM initrd initialisation code out of arm_memblock_init() into
its own function, so it can be cleaned up.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2017-02-28 11:06:20 +00:00
Arnd Bergmann
e2fce0a28d ARM: 8655/1: improve NOMMU definition of pgprot_*()
The tegra DRM driver produces a harmless warning when built for NOMMU:

drivers/gpu/drm/tegra/gem.c: In function 'tegra_drm_mmap':
drivers/gpu/drm/tegra/gem.c:508:12: unused variable 'prot'

This is because pgprot_writecombine() on ARM returns a constant and
ignores its argument. The version in asm-generic doesn't have that
problem, so let's use that one instead. We don't actually care
about the value on NOMMU, and this is consistent with what some
other architectures do.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2017-02-28 11:06:19 +00:00
Arnd Bergmann
7b96ddd02e ARM: 8654/1: decompressor: add strlen prototype
The decompress.c file contains a declaration for strstr() so we can
include some compression library code.

With the updated LZ4 implementation, we run into the same problem again
for strlen():

In file included from ../include/linux/rcupdate.h:40:0,
                 from ../include/linux/srcu.h:33,
                 from ../include/linux/notifier.h:15,
                 from ../include/linux/memory_hotplug.h:6,
                 from ../include/linux/mmzone.h:749,
                 from ../include/linux/gfp.h:5,
                 from ../include/linux/kmod.h:22,
                 from ../include/linux/module.h:13,
                 from ../arch/arm/boot/compressed/../../../../lib/lz4/lz4_decompress.c:39,
                 from ../arch/arm/boot/compressed/../../../../lib/decompress_unlz4.c:13,
                 from ../arch/arm/boot/compressed/decompress.c:55:
include/linux/cpumask.h: In function 'cpumask_parse':
include/linux/cpumask.h:592:53: error: implicit declaration of function 'strlen';did you mean 'strstr'? [-Werror=implicit-function-declaration]

This adds another declaration to work around the new problem.

Fixes: ce83d9ab80d6 ("lib: update LZ4 compressor module")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2017-02-28 11:06:18 +00:00
Masahiro Yamada
06369a1e58 ARM: 8652/1: cache-uniphier: clean up active way setup code
Now, the active way setup function is called with a fixed value zero
for the second argument.  The code can be simpler.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2017-02-28 11:06:17 +00:00
Masahiro Yamada
1c63d4c5e1 ARM: 8651/1: cache-uniphier: include <linux/errno.h> instead of <linux/types.h>
Nothing in this header file depends on <linux/types.h>.
Rather, <linux/errno.h> should be included for -ENODEV.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2017-02-28 11:06:16 +00:00
Ard Biesheuvel
050d18d1c6 ARM: 8650/1: module: handle negative R_ARM_PREL31 addends correctly
According to the spec 'ELF for the ARM Architecture' (IHI 0044E),
addends for R_ARM_PREL31 relocations are 31-bit signed quantities,
so we need to sign extend the value to 32 bits before it can be used
as an offset in the calculation of the relocated value.

We have not been bitten by this because these relocations are usually
emitted against the start of a section, which means the addends never
assume negative values in practice. But it is a bug nonetheless, so fix
it.

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2017-02-28 11:06:15 +00:00
Afzal Mohammed
ad475117d2 ARM: 8649/2: nommu: remove Hivecs configuration is asm
Now that exception based address is handled dynamically for
processors with CP15, remove Hivecs configuration in assembly.

Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com>
Tested-by: Vladimir Murzin <vladimir.murzin@arm.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2017-02-28 11:06:15 +00:00
Afzal Mohammed
58c16709f9 ARM: 8648/2: nommu: display vectors base
VECTORS_BASE displays the exception base address. Now on no-MMU as
the exception base address is dynamically estimated, define
VECTORS_BASE to the variable holding it.

As it is the case, limit VECTORS_BASE constant definition to MMU.

Suggested-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com>
Tested-by: Vladimir Murzin <vladimir.murzin@arm.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2017-02-28 11:06:14 +00:00
Afzal Mohammed
f8300a0b5d ARM: 8647/2: nommu: dynamic exception base address setting
No-MMU dynamic exception base address configuration on CP15
processors. In the case of low vectors, decision based on whether
security extensions are enabled & whether remap vectors to RAM
CONFIG option is selected.

For no-MMU without CP15, current default value of 0x0 is retained.

Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com>
Tested-by: Vladimir Murzin <vladimir.murzin@arm.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2017-02-28 11:06:13 +00:00
Afzal Mohammed
d2ca5f2491 ARM: 8646/1: mmu: decouple VECTORS_BASE from Kconfig
For MMU configurations, VECTORS_BASE is always 0xffff0000, a macro
definition will suffice.

For no-MMU, exception base address is dynamically determined in
subsequent patches. To preserve bisectability, now make the
macro applicable for no-MMU scenario too.

Thanks to 0-DAY kernel test infrastructure that found the
bisectability issue. This macro will be restricted to MMU case upon
dynamically determining exception base address for no-MMU.

Once exception address is handled dynamically for no-MMU,
VECTORS_BASE can be removed from Kconfig.

Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com>
Tested-by: Vladimir Murzin <vladimir.murzin@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2017-02-28 11:06:12 +00:00
Florian Fainelli
035e787543 ARM: 8644/1: Reduce "CPU: shutdown" message to debug level
Similar to c68b0274fb ("ARM: reduce "Booted secondary processor"
message to debug level"), demote the "CPU: shutdown" pr_notice() into a
pr_debug().

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2017-02-28 11:06:11 +00:00
Florian Fainelli
64fc2a947a ARM: 8641/1: treewide: Replace uses of virt_to_phys with __pa_symbol
All low-level PM/SMP code using virt_to_phys() should actually use
__pa_symbol() against kernel symbols. Update code where relevant to move
away from virt_to_phys().

Acked-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Laura Abbott <labbott@redhat.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2017-02-28 11:06:10 +00:00
Florian Fainelli
e377cd8221 ARM: 8640/1: Add support for CONFIG_DEBUG_VIRTUAL
x86 has an option: CONFIG_DEBUG_VIRTUAL to do additional checks on
virt_to_phys calls. The goal is to catch users who are calling
virt_to_phys on non-linear addresses immediately. This includes caller
using __virt_to_phys() on image addresses instead of __pa_symbol(). This
is a generally useful debug feature to spot bad code (particulary in
drivers).

Acked-by: Russell King <rmk+kernel@armlinux.org.uk>
Acked-by: Laura Abbott <labbott@redhat.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2017-02-28 11:06:09 +00:00
Florian Fainelli
a09975bf6c ARM: 8639/1: Define KERNEL_START and KERNEL_END
In preparation for adding CONFIG_DEBUG_VIRTUAL support, define a set of
common constants: KERNEL_START and KERNEL_END which abstract
CONFIG_XIP_KERNEL vs. !CONFIG_XIP_KERNEL. Update the code where
relevant.

Acked-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2017-02-28 11:05:46 +00:00
Laura Abbott
985626564e ARM: 8637/1: Adjust memory boundaries after reservations
adjust_lowmem_bounds is responsible for setting up the boundary for
lowmem/highmem. This needs to be setup before memblock reservations can
occur. At the time memblock reservations can occur, memory can also be
removed from the system. The lowmem/highmem boundary and end of memory
may be affected by this but it is currently not recalculated. On some
systems this may be harmless, on others this may result in incorrect
ranges being passed to the main memory allocator. Correct this by
recalculating the lowmem/highmem boundary after all reservations have
been made.

Tested-by: Magnus Lilja <lilja.magnus@gmail.com>
Signed-off-by: Laura Abbott <labbott@redhat.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2017-02-28 11:05:28 +00:00
Laura Abbott
374d446d25 ARM: 8636/1: Cleanup sanity_check_meminfo
The logic for sanity_check_meminfo has become difficult to
follow. Clean up the code so it's more obvious what the code
is actually trying to do. Additionally, meminfo is now removed
so rename the function to better describe its purpose.

Tested-by: Magnus Lilja <lilja.magnus@gmail.com>
Reviewed-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Laura Abbott <lauraa@codeaurora.org>
Signed-off-by: Laura Abbott <labbott@redhat.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2017-02-28 11:04:57 +00:00
Linus Torvalds
86292b33d4 Merge branch 'akpm' (patches from Andrew)
Merge yet more updates from Andrew Morton:

 - a few MM remainders

 - misc things

 - autofs updates

 - signals

 - affs updates

 - ipc

 - nilfs2

 - spelling.txt updates

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (78 commits)
  mm, x86: fix HIGHMEM64 && PARAVIRT build config for native_pud_clear()
  mm: add arch-independent testcases for RODATA
  hfs: atomically read inode size
  mm: clarify mm_struct.mm_{users,count} documentation
  mm: use mmget_not_zero() helper
  mm: add new mmget() helper
  mm: add new mmgrab() helper
  checkpatch: warn when formats use %Z and suggest %z
  lib/vsprintf.c: remove %Z support
  scripts/spelling.txt: add some typo-words
  scripts/spelling.txt: add "followings" pattern and fix typo instances
  scripts/spelling.txt: add "therfore" pattern and fix typo instances
  scripts/spelling.txt: add "overwriten" pattern and fix typo instances
  scripts/spelling.txt: add "overwritting" pattern and fix typo instances
  scripts/spelling.txt: add "deintialize(d)" pattern and fix typo instances
  scripts/spelling.txt: add "disassocation" pattern and fix typo instances
  scripts/spelling.txt: add "omited" pattern and fix typo instances
  scripts/spelling.txt: add "explictely" pattern and fix typo instances
  scripts/spelling.txt: add "applys" pattern and fix typo instances
  scripts/spelling.txt: add "configuartion" pattern and fix typo instances
  ...
2017-02-27 23:09:29 -08:00
Linus Torvalds
5782fd14aa RTC for 4.11
Subsystem:
  - constify rtc_class_ops structures
 
 New driver:
  - STM32
 
 Drivers:
  - armada38x: fix errata, Armada 7K/8K support
  - ds3232: fix wakeup support
  - gemini: DT support
  - m48t86: huge cleanup and platform_data removal
  - mcp795: alarm support
  - sun6i: proper oscillator handling
  - tegra: proper clock handling
  - tps65910: calibration support
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Merge tag 'rtc-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux

Pull RTC updates from Alexandre Belloni:
 "Subsystem:
   - constify rtc_class_ops structures

 New driver:
   - STM32

 Drivers:
   - armada38x: fix errata, Armada 7K/8K support
   - ds3232: fix wakeup support
   - gemini: DT support
   - m48t86: huge cleanup and platform_data removal
   - mcp795: alarm support
   - sun6i: proper oscillator handling
   - tegra: proper clock handling
   - tps65910: calibration support"

* tag 'rtc-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (44 commits)
  rtc: ds3232: Call device_init_wakeup before device_register
  rtc: pcf2127: bulk read only date and time registers.
  rtc: armada38x: Add support for Armada 7K/8K
  rtc: armada38x: Prepare driver to manage different versions
  rtc: ds3232: Add regmap max_register definition.
  rtc: ds3232: Cleanup whitespace around register and bit definitions.
  rtc: m48t86: remove unused platform_data
  ARM: Orion5x: ts78xx: allow rtc-m48t86 to manage it's own resources
  ARM: Orion5x: ts78xx: remove RTC detection
  ARM: ep93xx: ts72xx: allow rtc-m48t86 to manage its own resources
  rtc: m48t86: verify that the RTC is actually present
  rtc: m48t86: add NVRAM support
  rtc: m48t86: allow driver to manage its resources
  rtc: m48t86: shorten register name defines
  bindings: rtc: correct wrong reference in required properties
  rtc: sun6i: Fix return value check in sun6i_rtc_clk_init()
  rtc: sun6i: extend test coverage
  rtc: sun6i: Fix compatibility with old DT binding
  rtc: snvs: add a missing write sync
  rtc: bq32000: add support to enable disable the trickle charge FET bypass
  ...
2017-02-27 19:59:21 -08:00
Vegard Nossum
f1f1007644 mm: add new mmgrab() helper
Apart from adding the helper function itself, the rest of the kernel is
converted mechanically using:

  git grep -l 'atomic_inc.*mm_count' | xargs sed -i 's/atomic_inc(&\(.*\)->mm_count);/mmgrab\(\1\);/'
  git grep -l 'atomic_inc.*mm_count' | xargs sed -i 's/atomic_inc(&\(.*\)\.mm_count);/mmgrab\(\&\1\);/'

This is needed for a later patch that hooks into the helper, but might
be a worthwhile cleanup on its own.

(Michal Hocko provided most of the kerneldoc comment.)

Link: http://lkml.kernel.org/r/20161218123229.22952-1-vegard.nossum@oracle.com
Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-27 18:43:48 -08:00
Masahiro Yamada
183b8021fc scripts/spelling.txt: add "intialization" pattern and fix typo instances
Fix typos and add the following to the scripts/spelling.txt:

  intialization||initialization

The "inintialization" in drivers/acpi/spcr.c is a different pattern but
I fixed it as well in this commit.

Link: http://lkml.kernel.org/r/1481573103-11329-16-git-send-email-yamada.masahiro@socionext.com
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-27 18:43:47 -08:00
Masahiro Yamada
8ab102d60a scripts/spelling.txt: add "partiton" pattern and fix typo instances
Fix typos and add the following to the scripts/spelling.txt:

  partiton||partition

Link: http://lkml.kernel.org/r/1481573103-11329-7-git-send-email-yamada.masahiro@socionext.com
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-27 18:43:46 -08:00
Masahiro Yamada
08a7e621ff scripts/spelling.txt: add "swith" pattern and fix typo instances
Fix typos and add the following to the scripts/spelling.txt:

  swith||switch
  swithable||switchable
  swithed||switched
  swithing||switching

While we are here, fix the "update" to "updates" in the touched hunk in
drivers/net/wireless/marvell/mwifiex/wmm.c.

Link: http://lkml.kernel.org/r/1481573103-11329-2-git-send-email-yamada.masahiro@socionext.com
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-27 18:43:46 -08:00
Luis R. Rodriguez
7d134b2ce6 kprobes: move kprobe declarations to asm-generic/kprobes.h
Often all is needed is these small helpers, instead of compiler.h or a
full kprobes.h.  This is important for asm helpers, in fact even some
asm/kprobes.h make use of these helpers...  instead just keep a generic
asm file with helpers useful for asm code with the least amount of
clutter as possible.

Likewise we need now to also address what to do about this file for both
when architectures have CONFIG_HAVE_KPROBES, and when they do not.  Then
for when architectures have CONFIG_HAVE_KPROBES but have disabled
CONFIG_KPROBES.

Right now most asm/kprobes.h do not have guards against CONFIG_KPROBES,
this means most architecture code cannot include asm/kprobes.h safely.
Correct this and add guards for architectures missing them.
Additionally provide architectures that not have kprobes support with
the default asm-generic solution.  This lets us force asm/kprobes.h on
the header include/linux/kprobes.h always, but most importantly we can
now safely include just asm/kprobes.h on architecture code without
bringing the full kitchen sink of header files.

Two architectures already provided a guard against CONFIG_KPROBES on its
kprobes.h: sh, arch.  The rest of the architectures needed gaurds added.
We avoid including any not-needed headers on asm/kprobes.h unless
kprobes have been enabled.

In a subsequent atomic change we can try now to remove compiler.h from
include/linux/kprobes.h.

During this sweep I've also identified a few architectures defining a
common macro needed for both kprobes and ftrace, that of the definition
of the breakput instruction up.  Some refer to this as
BREAKPOINT_INSTRUCTION.  This must be kept outside of the #ifdef
CONFIG_KPROBES guard.

[mcgrof@kernel.org: fix arm64 build]
  Link: http://lkml.kernel.org/r/CAB=NE6X1WMByuARS4mZ1g9+W=LuVBnMDnh_5zyN0CLADaVh=Jw@mail.gmail.com
[sfr@canb.auug.org.au: fixup for kprobes declarations moving]
  Link: http://lkml.kernel.org/r/20170214165933.13ebd4f4@canb.auug.org.au
Link: http://lkml.kernel.org/r/20170203233139.32682-1-mcgrof@kernel.org
Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com>
Cc: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-27 18:43:45 -08:00
Linus Torvalds
5d8a00eee2 The usual collection of new drivers, non-critical fixes, and updates
to existing clk drivers. The bulk of the work is on Allwinner and
 Rockchip SoCs, but there's also an Intel Atom driver in here too.
 
 New Drivers:
  - Tegra BPMP firmware
  - Hisilicon hi3660 SoCs
  - Rockchip rk3328 SoCs
  - Intel Atom PMC
  - STM32F746
  - IDT VersaClock 5P49V5923 and 5P49V5933
  - Marvell mv98dx3236 SoCs
  - Allwinner V3s SoCs
 
 Removed Drivers:
  - Samsung Exynos4415 SoCs
 
 Updates:
  - Migrate ABx500 to OF
  - Qualcomm IPQ4019 CPU clks and general PLL support
  - Qualcomm MSM8974 RPM
  - Rockchip non-critical fixes and clk id additions
  - Samsung Exynos4412 CPUs
  - Socionext UniPhier NAND and eMMC support
  - ZTE zx296718 i2s and other audio clks
  - Renesas CAN and MSIOF clks for R-Car M3-W
  - Renesas resets for R-Car Gen2 and Gen3 and RZ/G1
  - TI CDCE913, CDCE937, and CDCE949 clk generators
  - Marvell Armada ap806 CPU frequencies
  - STM32F4* I2S/SAI support
  - Broadcom BCM2835 DSI support
  - Allwinner sun5i and A80 conversion to new style clk bindings
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Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

Pull clk updates from Stephen Boyd:
 "The usual collection of new drivers, non-critical fixes, and updates
  to existing clk drivers. The bulk of the work is on Allwinner and
  Rockchip SoCs, but there's also an Intel Atom driver in here too.

  New Drivers:
   - Tegra BPMP firmware
   - Hisilicon hi3660 SoCs
   - Rockchip rk3328 SoCs
   - Intel Atom PMC
   - STM32F746
   - IDT VersaClock 5P49V5923 and 5P49V5933
   - Marvell mv98dx3236 SoCs
   - Allwinner V3s SoCs

  Removed Drivers:
   - Samsung Exynos4415 SoCs

  Updates:
   - Migrate ABx500 to OF
   - Qualcomm IPQ4019 CPU clks and general PLL support
   - Qualcomm MSM8974 RPM
   - Rockchip non-critical fixes and clk id additions
   - Samsung Exynos4412 CPUs
   - Socionext UniPhier NAND and eMMC support
   - ZTE zx296718 i2s and other audio clks
   - Renesas CAN and MSIOF clks for R-Car M3-W
   - Renesas resets for R-Car Gen2 and Gen3 and RZ/G1
   - TI CDCE913, CDCE937, and CDCE949 clk generators
   - Marvell Armada ap806 CPU frequencies
   - STM32F4* I2S/SAI support
   - Broadcom BCM2835 DSI support
   - Allwinner sun5i and A80 conversion to new style clk bindings"

* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (130 commits)
  clk: renesas: mstp: ensure register writes complete
  clk: qcom: Do not drop device node twice
  clk: mvebu: adjust clock handling for the CP110 system controller
  clk: mvebu: Expand mv98dx3236-core-clock support
  clk: zte: add i2s clocks for zx296718
  clk: sunxi-ng: sun9i-a80: Fix wrong pointer passed to PTR_ERR()
  clk: sunxi-ng: select SUNXI_CCU_MULT for sun5i
  clk: sunxi-ng: Check kzalloc() for errors and cleanup error path
  clk: tegra: Add BPMP clock driver
  clk: uniphier: add eMMC clock for LD11 and LD20 SoCs
  clk: uniphier: add NAND clock for all UniPhier SoCs
  ARM: dts: sun9i: Switch to new clock bindings
  clk: sunxi-ng: Add A80 Display Engine CCU
  clk: sunxi-ng: Add A80 USB CCU
  clk: sunxi-ng: Add A80 CCU
  clk: sunxi-ng: Support separately grouped PLL lock status register
  clk: sunxi-ng: mux: Get closest parent rate possible with CLK_SET_RATE_PARENT
  clk: sunxi-ng: mux: honor CLK_SET_RATE_NO_REPARENT flag
  clk: sunxi-ng: mux: Fix determine_rate for mux clocks with pre-dividers
  clk: qcom: SDHCI enablement on Nexus 5X / 6P
  ...
2017-02-25 14:28:06 -08:00
Linus Torvalds
ac1820fb28 This is a tree wide change and has been kept separate for that reason.
Bart Van Assche noted that the ib DMA mapping code was significantly
 similar enough to the core DMA mapping code that with a few changes
 it was possible to remove the IB DMA mapping code entirely and
 switch the RDMA stack to use the core DMA mapping code.  This resulted
 in a nice set of cleanups, but touched the entire tree.  This branch
 will be submitted separately to Linus at the end of the merge window
 as per normal practice for tree wide changes like this.
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Merge tag 'for-next-dma_ops' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma

Pull rdma DMA mapping updates from Doug Ledford:
 "Drop IB DMA mapping code and use core DMA code instead.

  Bart Van Assche noted that the ib DMA mapping code was significantly
  similar enough to the core DMA mapping code that with a few changes it
  was possible to remove the IB DMA mapping code entirely and switch the
  RDMA stack to use the core DMA mapping code.

  This resulted in a nice set of cleanups, but touched the entire tree
  and has been kept separate for that reason."

* tag 'for-next-dma_ops' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (37 commits)
  IB/rxe, IB/rdmavt: Use dma_virt_ops instead of duplicating it
  IB/core: Remove ib_device.dma_device
  nvme-rdma: Switch from dma_device to dev.parent
  RDS: net: Switch from dma_device to dev.parent
  IB/srpt: Modify a debug statement
  IB/srp: Switch from dma_device to dev.parent
  IB/iser: Switch from dma_device to dev.parent
  IB/IPoIB: Switch from dma_device to dev.parent
  IB/rxe: Switch from dma_device to dev.parent
  IB/vmw_pvrdma: Switch from dma_device to dev.parent
  IB/usnic: Switch from dma_device to dev.parent
  IB/qib: Switch from dma_device to dev.parent
  IB/qedr: Switch from dma_device to dev.parent
  IB/ocrdma: Switch from dma_device to dev.parent
  IB/nes: Remove a superfluous assignment statement
  IB/mthca: Switch from dma_device to dev.parent
  IB/mlx5: Switch from dma_device to dev.parent
  IB/mlx4: Switch from dma_device to dev.parent
  IB/i40iw: Remove a superfluous assignment statement
  IB/hns: Switch from dma_device to dev.parent
  ...
2017-02-25 13:45:43 -08:00
Lucas Stach
712c604dcd mm: wire up GFP flag passing in dma_alloc_from_contiguous
The callers of the DMA alloc functions already provide the proper
context GFP flags.  Make sure to pass them through to the CMA allocator,
to make the CMA compaction context aware.

Link: http://lkml.kernel.org/r/20170127172328.18574-3-l.stach@pengutronix.de
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Radim Krcmar <rkrcmar@redhat.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Chris Zankel <chris@zankel.net>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Alexander Graf <agraf@suse.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>
2017-02-24 17:46:55 -08:00
Linus Torvalds
b2e3c4319d ARM: SoC driver updates
Driver updates for ARM SoCs.
 
 A handful of driver changes this time around. The larger changes are:
 
  - Reset drivers for hi3660 and zx2967
  - AHCI driver for Davinci, acked by Tejun and brought in here due to
    platform dependencies
  - Cleanups of atmel-ebi (External Bus Interface)
  - Tweaks for Rockchip GRF (General Register File) usage (kitchensink misc
    register range on the SoCs)
  - PM domains changes for support of two new ZTE SoCs (zx296718 and zx2967)
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Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC driver updates from Arnd Bergmann:
 "Driver updates for ARM SoCs.

  A handful of driver changes this time around. The larger changes are:

   - Reset drivers for hi3660 and zx2967

   - AHCI driver for Davinci, acked by Tejun and brought in here due to
     platform dependencies

   - Cleanups of atmel-ebi (External Bus Interface)

   - Tweaks for Rockchip GRF (General Register File) usage (kitchensink
     misc register range on the SoCs)

   - PM domains changes for support of two new ZTE SoCs (zx296718 and
     zx2967)"

* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (53 commits)
  soc: samsung: pmu: Add register defines for pad retention control
  reset: make zx2967 explicitly non-modular
  reset: core: fix reset_control_put
  soc: samsung: pm_domains: Read domain name from the new label property
  soc: samsung: pm_domains: Remove message about failed memory allocation
  soc: samsung: pm_domains: Remove unused name field
  soc: samsung: pm_domains: Use full names in subdomains registration log
  sata: ahci-da850: un-hardcode the MPY bits
  sata: ahci-da850: add a workaround for controller instability
  sata: ahci: export ahci_do_hardreset() locally
  sata: ahci-da850: implement a workaround for the softreset quirk
  sata: ahci-da850: add device tree match table
  sata: ahci-da850: get the sata clock using a connection id
  soc: samsung: pmu: Remove duplicated define for ARM_L2_OPTION register
  memory: atmel-ebi: Enable the SMC clock if specified
  soc: samsung: pmu: Remove unused and duplicated defines
  memory: atmel-ebi: Properly handle multiple reference to the same CS
  memory: atmel-ebi: Fix the test to enable generic SMC logic
  soc: samsung: pm_domains: Add new Exynos5433 compatible
  soc: samsung: pmu: Add dummy support for Exynos5433 SoC
  ...
2017-02-23 15:57:04 -08:00
Linus Torvalds
195849ea13 ARM: DT updates for v4.11
A total of 380 patches this time, mostly adding support for more hardware
 in the device tree descriptions. There is not much exciting here for 4.11,
 but I've tried my best to condense the information from the pull requests
 I got into a readable summary.
 
 Noteworthy changes to existing platforms include:
   - The GIC memory map was a bit wrong almost everywhere and now
     gets fixed up
   - The Allwinner platforms convert to the generic pinmux properties
   - The Marvell EBU platforms now use the new DSA binding
   - Samsung Exynos4212 was unused and gets removed
   - The Renesas power management got improved
 
 New production machines:
   - Lego Mindstorms EV3
     https://www.lego.com/en-us/mindstorms/about-ev3
   - Beelink X2 Android media box
     http://linux-sunxi.org/Beelink_X2
   - "Romulus" baseboard management controller for OpenPower
   - Axentia TSE-850 Data Radio Channel (DARC) encoder
     http://www.axentia.se/db/equipment.html
   - Luxul XAP-1410 and XWR-1200 wireless access points
     https://luxul.com/xap-1410
 
 New SoCs:
   - Allwinner H2+ and V3s, both minor variations of already
     supported chips
     http://www.allwinnertech.com/index.php?c=product&a=index&id=38
   - Marvell Prestera DX packet processors based on Armada XP architecture
     http://www.marvell.com/switching/prestera-dx/
   - Samsung Exynos4412 Prime gets added, a minor variation of Exynos4412
 
 New developer and reference boards:
   - Lichee Pi One, Lichee Pi Zero and Orange Pi Zero,
     all based on Allwinner SoCs
     http://linux-sunxi.org/LicheePi_One
     http://www.orangepi.org/orangepizero/
   - SAMA5d36ek Reference platform
     http://www.atmel.com/tools/sama5d36-ek.aspx
   - Beaglebone Green Wireless and Black Wireless
     https://beagleboard.org/black-wireless
     https://beagleboard.org/green-wireless
   - phyCORE-AM335x System on Module
     http://phytec.com/products/system-on-modules/phycore/am335x/
   - New revision of "vf610-zii" Zodiac Inflight Innovations board
   - Various i.MX System-on-Module: Is.IoT MX6UL, SavageBoard, Engicam i.Core
     http://www.opossom.com/english/index.html
     http://www.savageboard.org/
     http://www.engicam.com/en/products/embedded/som/sodimm/is-iot-mx6ul
     http://www.engicam.com/en/products/embedded/som/sodimm/i-core-m6s-dl-d-q
   - Liebherr (LWN) monitor 6 based on i.MX6 Quad, no idea what this is
 
 Cleanups and bugfixes on at91, bcm53xx, i.MX, mvebu, omap, oxnas, qcom,
     rockchip, sti, stm32 and tegra
 
 New device supports added to some boards and SoCs, briefly by platform:
   - Allwinner: SPDIF, A33 cpufreq, A33 Mali GPU
   - Aspeed: network, ipmi bt, gpio, pinmux
   - Broadcom: video encoder for raspberry pi, qspi, ethernet, sd/mmc
   - TI DaVinci: gpio, lcdc, usb, video-in, uart
   - TI Keystone 2: MSM RAM, power/reset, uart
   - Mediatek MT2701: clocks, iommu, spi, nand, adc, thermal
   - Marvell EBU: ethernet switch on Turris Omnia
   - NXP i.MX: otp ram, USB, wifi, bluetooth, spdif, spi, pmic,
     eeprom, mmc, nand
   - TI OMAP:
   - Qualcomm: coresight, gyro/accelerometer, hdmi
   - Renesas: pmic, soc-id
   - Rockchip: qos
   - Samsung: audio on Odroid-X
   - Socfpga: FPGA manager, i2c, led, can, watchdog, nand, power monitor
   - STi: video in/out
   - STM32: timer, pwm, i2c, rtc, add, i2s
   - NVIDIA Tegra: tpm
   - Uniphier: mmc/sd pinmux
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Merge tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM DT updates from Arnd Bergmann:
 "A total of 380 patches this time, mostly adding support for more
  hardware in the device tree descriptions. There is not much exciting
  here for 4.11, but I've tried my best to condense the information from
  the pull requests I got into a readable summary.

  Noteworthy changes to existing platforms include:

   - The GIC memory map was a bit wrong almost everywhere and now gets
     fixed up

   - The Allwinner platforms convert to the generic pinmux properties

   - The Marvell EBU platforms now use the new DSA binding

   - Samsung Exynos4212 was unused and gets removed

   - The Renesas power management got improved

  New production machines:

   - Lego Mindstorms EV3:
        https://www.lego.com/en-us/mindstorms/about-ev3

   - Beelink X2 Android media box:
        http://linux-sunxi.org/Beelink_X2

   - "Romulus" baseboard management controller for OpenPower

   - Axentia TSE-850 Data Radio Channel (DARC) encoder:
        http://www.axentia.se/db/equipment.html

   - Luxul XAP-1410 and XWR-1200 wireless access points:
        https://luxul.com/xap-1410

  New SoCs:

   - Allwinner H2+ and V3s, both minor variations of already supported
     chips:
        http://www.allwinnertech.com/index.php?c=product&a=index&id=38

   - Marvell Prestera DX packet processors based on Armada XP
     architecture:
        http://www.marvell.com/switching/prestera-dx/

   - Samsung Exynos4412 Prime gets added, a minor variation of
     Exynos4412

  New developer and reference boards:

   - Lichee Pi One, Lichee Pi Zero and Orange Pi Zero, all based on
     Allwinner SoCs:
        http://linux-sunxi.org/LicheePi_One
        http://www.orangepi.org/orangepizero/

   - SAMA5d36ek Reference platform:
        http://www.atmel.com/tools/sama5d36-ek.aspx

   - Beaglebone Green Wireless and Black Wireless:
        https://beagleboard.org/black-wireless
        https://beagleboard.org/green-wireless

   - phyCORE-AM335x System on Module:
        http://phytec.com/products/system-on-modules/phycore/am335x/

   - New revision of "vf610-zii" Zodiac Inflight Innovations board

   - Various i.MX System-on-Module: Is.IoT MX6UL, SavageBoard, Engicam
     i.Core:
        http://www.opossom.com/english/index.html
        http://www.savageboard.org/
        http://www.engicam.com/en/products/embedded/som/sodimm/is-iot-mx6ul
        http://www.engicam.com/en/products/embedded/som/sodimm/i-core-m6s-dl-d-q

   - Liebherr (LWN) monitor 6 based on i.MX6 Quad, no idea what this is

   - Cleanups and bugfixes on at91, bcm53xx, i.MX, mvebu, omap, oxnas,
     qcom, rockchip, sti, stm32 and tegra

  New device supports added to some boards and SoCs, briefly by platform:

   - Allwinner: SPDIF, A33 cpufreq, A33 Mali GPU

   - Aspeed: network, ipmi bt, gpio, pinmux

   - Broadcom: video encoder for raspberry pi, qspi, ethernet, sd/mmc

   - TI DaVinci: gpio, lcdc, usb, video-in, uart

   - TI Keystone 2: MSM RAM, power/reset, uart

   - Mediatek MT2701: clocks, iommu, spi, nand, adc, thermal

   - Marvell EBU: ethernet switch on Turris Omnia

   - NXP i.MX: otp ram, USB, wifi, bluetooth, spdif, spi, pmic, eeprom,
     mmc, nand

   - TI OMAP:

   - Qualcomm: coresight, gyro/accelerometer, hdmi

   - Renesas: pmic, soc-id

   - Rockchip: qos

   - Samsung: audio on Odroid-X

   - Socfpga: FPGA manager, i2c, led, can, watchdog, nand, power monitor

   - STi: video in/out

   - STM32: timer, pwm, i2c, rtc, add, i2s

   - NVIDIA Tegra: tpm

   - Uniphier: mmc/sd pinmux"

* tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (380 commits)
  ARM: dts: armada-385-linksys: fix DSA compatible property
  ARM: dts: Fix typo in armada-xp-98dx4251
  ARM: DTS: Fix register map for virt-capable GIC
  dt-bindings: arm,gic: Fix binding example for a virt-capable GIC
  ARM: dts: sun8i: sinlinx: Enable audio nodes
  ARM: dts: sun8i: parrot: Enable audio nodes
  ARM: dts: sun8i: Add audio codec, dai and card for A33
  ARM: dts: Add EMAC AXI settings for Arria10
  ARM: dts: am335x-chiliboard: Support charger
  ARM: dts: am335x-chiliboard: Support power button
  ARM: sun8i: dt: Add mali node
  dt-bindings: gpu: Add Mali Utgard bindings
  ARM: dts: stm32: Add I2C1 support for STM32429 eval board
  ARM: dts: stm32: Add I2C1 support for STM32F429 SoC
  ARM: dts: stm32: Use clock DT binding definition on stm32f429 family
  dt-bindings: mfd: stm32f4: Add missing binding definition
  dt-bindings: mfd: stm32f4: Fix STM32F4_X_CLOCK() macro
  ARM: dts: stm32: Enable pwm1 and pwm3 for stm32f469-disco
  ARM: dts: stm32: add Timers driver for stm32f429 MCU
  ARM: dts: add the AB8500 sysclk to the device trees
  ...
2017-02-23 15:46:25 -08:00
Linus Torvalds
54fff785db ARM: SoC defconfig updates for v4.11
Defconfig additions, removals, etc. Almost all of them just turn on
 drivers that we want on some platform, usually after the driver
 has been merged into mainline.
 
 There is now a new defconfig file for tango4.
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Merge tag 'armsoc-defconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC defconfig updates from Arnd Bergmann:
 "Defconfig additions, removals, etc. Almost all of them just turn on
  drivers that we want on some platform, usually after the driver has
  been merged into mainline.

  There is now a new defconfig file for tango4"

* tag 'armsoc-defconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (44 commits)
  ARM: multi_v7_defconfig: enable pstore configs
  ARM: multi_v7_defconfig: enable some newly added crypto modules
  ARM: davinci_all_defconfig: enable SATA modules
  arm64: defconfig: enable CONFIG_MTD_NAND and CONFIG_MTD_NAND_DENALI_DT
  arm64: defconfig: enable CONFIG_MTD_BLOCK
  ARM: Import tango4_defconfig
  ARM: omap2plus_defconfig: Enable support for RTC M41T80
  ARM: omap2plus_defconfig: Enable support for micrell phys
  ARM: vf610m4: defconfig: enable EXT4 filesystem
  ARM: omap2plus_defconfig: Fix probe errors on UARTs 5 and 6
  arm64: defconfig: Enable NUMA and NUMA_BALANCING
  arm64: defconfig: enable SMMUv3 config
  ARM: davinci_all_defconfig: enable iio
  ARM: Keystone: Enable ARCH_HAS_RESET_CONTROLLER
  ARM: configs: stm32: Add RTC support in STM32 defconfig
  ARM: defconfig: qcom: add APQ8060 DragonBoard devices
  ARM: qcom_defconfig: enable thermal sensors
  ARM: qcom_defconfig: add ahci configs
  ARM: qcom_defconfig: add pcie and atl1c ethernet configs
  ARM: qcom_defconfig: add usb related configs
  ...
2017-02-23 15:39:32 -08:00
Linus Torvalds
6ae52c65e0 ARM: SoC platform updates
In the SoC branch we normally collect classic arch/arm/mach-* contents, i.e.
 C code changes for SoC platforms. This release cycle the diffstat is quite
 nice, in that we're removing 3x the amount of code that's being added.
 
 The main reason for this is that there's a removal of camera drivers for
 Freescale i.MX chips (driver was removed so the device registration isn't
 needed any more). There's also removal of display initialization code for OMAP
 that is no longer needed.
 
 The rest are mostly minor tweaks and cleanups; constification on Samsung
 platforms, cleanup of ux500 platform data, purge of other unused platform
 data/device seutp on i.MX and other good stuff.
 
 New SoC support this cycle is for two Allwinner platforms, H2+ and V3s.
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Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC platform updates from Arnd Bergmann:
 "In the SoC branch we normally collect classic arch/arm/mach-*
  contents, i.e. C code changes for SoC platforms. This release cycle
  the diffstat is quite nice, in that we're removing 3x the amount of
  code that's being added.

  The main reason for this is that there's a removal of camera drivers
  for Freescale i.MX chips (driver was removed so the device
  registration isn't needed any more). There's also removal of display
  initialization code for OMAP that is no longer needed.

  The rest are mostly minor tweaks and cleanups; constification on
  Samsung platforms, cleanup of ux500 platform data, purge of other
  unused platform data/device seutp on i.MX and other good stuff.

  New SoC support this cycle is for two Allwinner platforms, H2+ and
  V3s"

* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (55 commits)
  ARM: ux500: remove deleted file from Makefile
  ARM: ep93xx: Disable TS-72xx watchdog before uncompressing
  ARM: ux500: cut some platform data
  MAINTAINERS: Update for the current location of the bcm2835 tree.
  ARM: davinci: remove BUG_ON() from da850_register_sata()
  ARM: davinci: da850: model the SATA refclk
  ARM: davinci: da850: add con_id for the SATA clock
  ARM: davinci: da8xx-dt: add OF_DEV_AUXDATA entry for SATA
  arm: mvebu: support for SMP on 98DX3336 SoC
  dt-bindings: video: exynos7-decon: Remove obsolete samsung,power-domain property
  soc: dove: constify reset_control_ops structures
  ARM: mv78xx0: fix possible PCI buffer overflow
  MAINTAINERS: transfer maintainership for the EZX platform
  ARM: shmobile: rcar-gen2: Add more register documentation
  ARM: tegra: paz00: Fix __initdata placement
  ARM: OMAP: clock: Remove unused mpurate cmdline option
  ARM: davinci: add skeleton for pdata-quirks
  arm: sunxi: add support for V3s SoC
  ARM: OMAP2+: omap_hwmod: Add support for earlycon
  arm: hisi: drop extern hip01_cpu_die
  ...
2017-02-23 15:33:54 -08:00
Linus Torvalds
af8999f672 ARM: SoC non-urgent fixes for merge window
We sometimes collect non-critical fixes that come in during the later part
 of the merge window in a branch for the next release instead, and this is
 that contents for v4.11.
 
 Most of these are OMAP fixes, dealing with OMAP36/37 detection, quirks
 and setup. There's also some fixes for Davinci and a Kconfig fix for SCPI
 to only enable on ARM{,64}.
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Merge tag 'armsoc-fixes-nc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC non-urgent fixes from Arnd Bergmann:
 "We sometimes collect non-critical fixes that come in during the later
  part of the merge window in a branch for the next release instead, and
  this is that contents for v4.11.

  Most of these are OMAP fixes, dealing with OMAP36/37 detection, quirks
  and setup. There's also some fixes for Davinci and a Kconfig fix for
  SCPI to only enable on ARM{,64}"

* tag 'armsoc-fixes-nc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  firmware: arm_scpi: Add hardware dependencies
  ARM: OMAP3: Fix SoC detection of OMAP36/37 Family
  ARM: OMAP5: Add HWMOD_SWSUP_SIDLE_ACT flag for UART
  ARM: dts: Fix compatible for ti81xx uarts for 8250
  ARM: dts: Fix am335x and dm814x scm syscon to probe children
  ARM: OMAP2+: Fix init for multiple quirks for the same SoC
  ARM: dts: Fix omap3 off mode pull defines
  bus: da850-mstpri: fix my e-mail address
  ARM: davinci: da850: fix da850_set_pll0rate()
  ARM: davinci: da850: coding style fix
2017-02-23 15:28:04 -08:00