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

Pull arm64 updates from Will Deacon:
 "Mostly just incremental improvements here:

   - Introduce AT_HWCAP2 for advertising CPU features to userspace

   - Expose SVE2 availability to userspace

   - Support for "data cache clean to point of deep persistence" (DC PODP)

   - Honour "mitigations=off" on the cmdline and advertise status via
     sysfs

   - CPU timer erratum workaround (Neoverse-N1 #1188873)

   - Introduce perf PMU driver for the SMMUv3 performance counters

   - Add config option to disable the kuser helpers page for AArch32 tasks

   - Futex modifications to ensure liveness under contention

   - Rework debug exception handling to seperate kernel and user
     handlers

   - Non-critical fixes and cleanup"

* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (92 commits)
  Documentation: Add ARM64 to kernel-parameters.rst
  arm64/speculation: Support 'mitigations=' cmdline option
  arm64: ssbs: Don't treat CPUs with SSBS as unaffected by SSB
  arm64: enable generic CPU vulnerabilites support
  arm64: add sysfs vulnerability show for speculative store bypass
  arm64: Fix size of __early_cpu_boot_status
  clocksource/arm_arch_timer: Use arch_timer_read_counter to access stable counters
  clocksource/arm_arch_timer: Remove use of workaround static key
  clocksource/arm_arch_timer: Drop use of static key in arch_timer_reg_read_stable
  clocksource/arm_arch_timer: Direcly assign set_next_event workaround
  arm64: Use arch_timer_read_counter instead of arch_counter_get_cntvct
  watchdog/sbsa: Use arch_timer_read_counter instead of arch_counter_get_cntvct
  ARM: vdso: Remove dependency with the arch_timer driver internals
  arm64: Apply ARM64_ERRATUM_1188873 to Neoverse-N1
  arm64: Add part number for Neoverse N1
  arm64: Make ARM64_ERRATUM_1188873 depend on COMPAT
  arm64: Restrict ARM64_ERRATUM_1188873 mitigation to AArch32
  arm64: mm: Remove pte_unmap_nested()
  arm64: Fix compiler warning from pte_unmap() with -Wunused-but-set-variable
  arm64: compat: Reduce address limit for 64K pages
  ...

diff --cc Documentation/admin-guide/kernel-parameters.txt
Simple merge

diff --cc arch/arm64/Kconfig
index d81adca,1c0cb51..df350f4
--- 1/arch/arm64/Kconfig
--- 2/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@@ -148,7 -149,9 +149,8 @@@ config ARM6
        select HAVE_PERF_REGS
        select HAVE_PERF_USER_STACK_DUMP
        select HAVE_REGS_AND_STACK_ACCESS_API
+       select HAVE_FUNCTION_ARG_ACCESS_API
        select HAVE_RCU_TABLE_FREE
 -      select HAVE_RCU_TABLE_INVALIDATE
        select HAVE_RSEQ
        select HAVE_STACKPROTECTOR
        select HAVE_SYSCALL_TRACEPOINTS

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

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

diff --cc arch/arm64/kernel/traps.c
Simple merge

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

diff --cc drivers/clocksource/arm_arch_timer.c
Simple merge

diff --cc drivers/firmware/efi/libstub/Makefile
Simple merge

diff --cc mm/kasan/Makefile
index 613dfe6,f06ee82..08b43de
--- 1/mm/kasan/Makefile
--- 2/mm/kasan/Makefile
+++ b/mm/kasan/Makefile
@@@ -6,10 -5,9 +6,10 @@@ UBSAN_SANITIZE_generic_report.o := 
  UBSAN_SANITIZE_tags.o := n
  KCOV_INSTRUMENT := n
  
- CFLAGS_REMOVE_common.o = -pg
- CFLAGS_REMOVE_generic.o = -pg
- CFLAGS_REMOVE_generic_report.o = -pg
- CFLAGS_REMOVE_tags.o = -pg
+ CFLAGS_REMOVE_common.o = $(CC_FLAGS_FTRACE)
+ CFLAGS_REMOVE_generic.o = $(CC_FLAGS_FTRACE)
++CFLAGS_REMOVE_generic_report.o = $(CC_FLAGS_FTRACE)
+ CFLAGS_REMOVE_tags.o = $(CC_FLAGS_FTRACE)
  
  # Function splitter causes unnecessary splits in __asan_load1/__asan_store1
  # see: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63533

diff --cc virt/kvm/arm/mmu.c
Simple merge