Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64...

Pull arm64 updates from Catalin Marinas:
 "arm64 updates for 3.20:

   - reimplementation of the virtual remapping of UEFI Runtime Services
     in a way that is stable across kexec
   - emulation of the "setend" instruction for 32-bit tasks (user
     endianness switching trapped in the kernel, SCTLR_EL1.E0E bit set
     accordingly)
   - compat_sys_call_table implemented in C (from asm) and made it a
     constant array together with sys_call_table
   - export CPU cache information via /sys (like other architectures)
   - DMA API implementation clean-up in preparation for IOMMU support
   - macros clean-up for KVM
   - dropped some unnecessary cache+tlb maintenance
   - CONFIG_ARM64_CPU_SUSPEND clean-up
   - defconfig update (CPU_IDLE)

  The EFI changes going via the arm64 tree have been acked by Matt
  Fleming.  There is also a patch adding sys_*stat64 prototypes to
  include/linux/syscalls.h, acked by Andrew Morton"

* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (47 commits)
  arm64: compat: Remove incorrect comment in compat_siginfo
  arm64: Fix section mismatch on alloc_init_p[mu]d()
  arm64: Avoid breakage caused by .altmacro in fpsimd save/restore macros
  arm64: mm: use *_sect to check for section maps
  arm64: drop unnecessary cache+tlb maintenance
  arm64:mm: free the useless initial page table
  arm64: Enable CPU_IDLE in defconfig
  arm64: kernel: remove ARM64_CPU_SUSPEND config option
  arm64: make sys_call_table const
  arm64: Remove asm/syscalls.h
  arm64: Implement the compat_sys_call_table in C
  syscalls: Declare sys_*stat64 prototypes if __ARCH_WANT_(COMPAT_)STAT64
  compat: Declare compat_sys_sigpending and compat_sys_sigprocmask prototypes
  arm64: uapi: expose our struct ucontext to the uapi headers
  smp, ARM64: Kill SMP single function call interrupt
  arm64: Emulate SETEND for AArch32 tasks
  arm64: Consolidate hotplug notifier for instruction emulation
  arm64: Track system support for mixed endian EL0
  arm64: implement generic IOMMU configuration
  arm64: Combine coherent and non-coherent swiotlb dma_ops
  ...

diff --cc arch/arm64/Makefile
Simple merge

diff --cc arch/arm64/include/asm/kvm_emulate.h
Simple merge

diff --cc arch/arm64/include/asm/pgtable.h
Simple merge

diff --cc arch/arm64/include/asm/unistd.h
Simple merge

diff --cc arch/arm64/kvm/hyp.S
Simple merge

diff --cc arch/arm64/kvm/sys_regs.c
Simple merge

diff --cc arch/arm64/mm/dump.c
index d54dc9ac4b70874af52e4c94054c850b576c9f0d,6129653754736c36fe4ca85cc74cb2caee4861bc..74c256744b254e09c989cabcd9072aee93c9fd6d
--- 1/arch/arm64/mm/dump.c
--- 2/arch/arm64/mm/dump.c
+++ b/arch/arm64/mm/dump.c
@@@ -14,8 -14,9 +14,10 @@@
   * of the License.
   */
  #include <linux/debugfs.h>
+ #include <linux/errno.h>
  #include <linux/fs.h>
 +#include <linux/io.h>
+ #include <linux/init.h>
  #include <linux/mm.h>
  #include <linux/sched.h>
  #include <linux/seq_file.h>

diff --cc arch/arm64/mm/init.c
Simple merge

diff --cc drivers/firmware/efi/efi.c
Simple merge

diff --cc drivers/firmware/efi/libstub/arm-stub.c
Simple merge

diff --cc drivers/firmware/efi/libstub/efi-stub-helper.c
Simple merge

diff --cc include/linux/efi.h
Simple merge