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Subject[GIT PULL] arm64 updates for 5.3
Hi Linus,

I'm sending an early pull request for 5.3 as I'll be on holiday for the
next two weeks. The PTRACE_SYSEMU patches touch powerpc and x86 lightly
(the acks are in place). There are a few conflicts but nothing
complicated, the resolution is as per linux-next. If anything goes
wrong, Will is around during the merging window.

Thanks.

The following changes since commit f2c7c76c5d0a443053e94adb9f0918fa2fb85c3a:

Linux 5.2-rc3 (2019-06-02 13:55:33 -0700)

are available in the Git repository at:

git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux tags/arm64-upstream

for you to fetch changes up to 0c61efd322b75ed3143e3d130ebecbebf561adf5:

Merge branch 'for-next/perf' of git://git.kernel.org/pub/scm/linux/kernel/git/will/linux (2019-07-01 15:53:35 +0100)

----------------------------------------------------------------
arm64 updates for 5.3:

- arm64 support for syscall emulation via PTRACE_SYSEMU{,_SINGLESTEP}

- Wire up VM_FLUSH_RESET_PERMS for arm64, allowing the core code to
manage the permissions of executable vmalloc regions more strictly

- Slight performance improvement by keeping softirqs enabled while
touching the FPSIMD/SVE state (kernel_neon_begin/end)

- Expose a couple of ARMv8.5 features to user (HWCAP): CondM (new XAFLAG
and AXFLAG instructions for floating point comparison flags
manipulation) and FRINT (rounding floating point numbers to integers)

- Re-instate ARM64_PSEUDO_NMI support which was previously marked as
BROKEN due to some bugs (now fixed)

- Improve parking of stopped CPUs and implement an arm64-specific
panic_smp_self_stop() to avoid warning on not being able to stop
secondary CPUs during panic

- perf: enable the ARM Statistical Profiling Extensions (SPE) on ACPI
platforms

- perf: DDR performance monitor support for iMX8QXP

- cache_line_size() can now be set from DT or ACPI/PPTT if provided to
cope with a system cache info not exposed via the CPUID registers

- Avoid warning on hardware cache line size greater than
ARCH_DMA_MINALIGN if the system is fully coherent

- arm64 do_page_fault() and hugetlb cleanups

- Refactor set_pte_at() to avoid redundant READ_ONCE(*ptep)

- Ignore ACPI 5.1 FADTs reported as 5.0 (infer from the 'arm_boot_flags'
introduced in 5.1)

- CONFIG_RANDOMIZE_BASE now enabled in defconfig

- Allow the selection of ARM64_MODULE_PLTS, currently only done via
RANDOMIZE_BASE (and an erratum workaround), allowing modules to spill
over into the vmalloc area

- Make ZONE_DMA32 configurable

----------------------------------------------------------------
Aaro Koskinen (1):
arm64: Implement panic_smp_self_stop()

Anshuman Khandual (10):
arm64/hugetlb: Use macros for contiguous huge page sizes
arm64/mm: Move PTE_VALID from SW defined to HW page table entry definitions
arm64/mm: Simplify protection flag creation for kernel huge mappings
arm64/mm: Change BUG_ON() to VM_BUG_ON() in [pmd|pud]_set_huge()
arm64/mm: Identify user instruction aborts
arm64/mm: Drop mmap_sem before calling __do_kernel_fault()
arm64/mm: Drop task_struct argument from __do_page_fault()
arm64/mm: Document write abort detection from ESR
arm64/mm: Refactor __do_page_fault()
arm64/mm: Drop [PTE|PMD]_TYPE_FAULT

Ard Biesheuvel (5):
acpi/arm64: ignore 5.1 FADTs that are reported as 5.0
arm64: module: create module allocations without exec permissions
arm64/mm: wire up CONFIG_ARCH_HAS_SET_DIRECT_MAP
arm64/kprobes: set VM_FLUSH_RESET_PERMS on kprobe instruction pages
arm64: bpf: do not allocate executable memory

Bartlomiej Zolnierkiewicz (1):
arm64: remove redundant 'default n' from Kconfig

Catalin Marinas (2):
arm64: ARM64_MODULES_PLTS must depend on MODULES
Merge branch 'for-next/perf' of git://git.kernel.org/.../will/linux

Florian Fainelli (1):
arm64: Allow user selection of ARM64_MODULE_PLTS

Frank Li (3):
dt-bindings: perf: imx8-ddr: add imx8qxp ddr performance monitor
drivers/perf: imx_ddr: Add DDR performance counter support to perf
MAINTAINERS: Add maintainer entry for the imx8 DDR PMU driver

Jayachandran C (1):
arm64: Improve parking of stopped CPUs

Jeremy Linton (4):
ACPI/PPTT: Modify node flag detection to find last IDENTICAL
ACPI/PPTT: Add function to return ACPI 6.3 Identical tokens
arm_pmu: acpi: spe: Add initial MADT/SPE probing
perf: arm_spe: Enable ACPI/Platform automatic module loading

Julien Grall (4):
arm64/fpsimd: Remove the prototype for sve_flush_cpu_state()
arm64/fpsimd: Introduce fpsimd_save_and_flush_cpu_state() and use it
arm64/fpsimd: Don't disable softirq when touching FPSIMD/SVE state
arm64/cpufeature: Convert hook_lock to raw_spin_lock_t in cpu_enable_ssbs()

Julien Thierry (7):
arm64: Do not enable IRQs for ct_user_exit
arm64: irqflags: Pass flags as readonly operand to restore instruction
arm64: irqflags: Add condition flags to inline asm clobber list
arm64: Fix interrupt tracing in the presence of NMIs
arm64: Fix incorrect irqflag restore for priority masking
arm64: irqflags: Introduce explicit debugging for IRQ priorities
arm64: Allow selecting Pseudo-NMI again

Liu Song (1):
arm64: kernel: use aff3 instead of aff2 in comment

Mark Brown (2):
arm64: Expose ARMv8.5 CondM capability to userspace
arm64: Expose FRINT capabilities to userspace

Mark Rutland (1):
arm64: mm: avoid redundant READ_ONCE(*ptep)

Masayoshi Mizuma (1):
arm64/mm: Correct the cache line size warning with non coherent device

Miles Chen (1):
arm64: mm: make CONFIG_ZONE_DMA32 configurable

Nick Desaulniers (1):
arm64: defconfig: enable CONFIG_RANDOMIZE_BASE

Odin Ugedal (1):
arm64: Fix comment after #endif

Shaokun Zhang (2):
drivers: base: cacheinfo: Add variable to record max cache line size
arm64: cacheinfo: Update cache_line_size detected from DT or PPTT

Sudeep Holla (4):
ptrace: move clearing of TIF_SYSCALL_EMU flag to core
arm64: add PTRACE_SYSEMU{,SINGLESTEP} definations to uapi headers
arm64: ptrace: add support for syscall emulation
x86/entry: Simplify _TIF_SYSCALL_EMU handling

Wei Li (1):
arm64: fix kernel stack overflow in kdump capture kernel

jinho lim (1):
arm64: rename dump_instr as dump_kernel_instr

Documentation/arm64/elf_hwcaps.txt | 8 +
.../devicetree/bindings/perf/fsl-imx-ddr.txt | 21 +
MAINTAINERS | 7 +
arch/arm64/Kconfig | 35 +-
arch/arm64/configs/defconfig | 1 +
arch/arm64/include/asm/acpi.h | 3 +
arch/arm64/include/asm/arch_gicv3.h | 4 +-
arch/arm64/include/asm/cache.h | 5 +-
arch/arm64/include/asm/cacheflush.h | 3 +
arch/arm64/include/asm/cpufeature.h | 6 +
arch/arm64/include/asm/daifflags.h | 75 ++-
arch/arm64/include/asm/fpsimd.h | 5 +-
arch/arm64/include/asm/hwcap.h | 2 +
arch/arm64/include/asm/irqflags.h | 79 ++-
arch/arm64/include/asm/kvm_host.h | 7 +-
arch/arm64/include/asm/pgtable-hwdef.h | 3 +-
arch/arm64/include/asm/pgtable-prot.h | 1 -
arch/arm64/include/asm/pgtable.h | 56 ++-
arch/arm64/include/asm/ptrace.h | 10 +-
arch/arm64/include/asm/simd.h | 10 +-
arch/arm64/include/asm/sysreg.h | 1 +
arch/arm64/include/asm/thread_info.h | 5 +-
arch/arm64/include/uapi/asm/hwcap.h | 2 +
arch/arm64/include/uapi/asm/ptrace.h | 3 +
arch/arm64/kernel/acpi.c | 10 +-
arch/arm64/kernel/cacheinfo.c | 9 +
arch/arm64/kernel/cpufeature.c | 8 +-
arch/arm64/kernel/cpuinfo.c | 2 +
arch/arm64/kernel/entry.S | 84 +++-
arch/arm64/kernel/fpsimd.c | 139 ++++--
arch/arm64/kernel/irq.c | 26 +
arch/arm64/kernel/module.c | 4 +-
arch/arm64/kernel/probes/kprobes.c | 4 +-
arch/arm64/kernel/process.c | 2 +-
arch/arm64/kernel/ptrace.c | 6 +-
arch/arm64/kernel/sleep.S | 2 +-
arch/arm64/kernel/smp.c | 27 +-
arch/arm64/kernel/traps.c | 23 +-
arch/arm64/kvm/fpsimd.c | 4 +-
arch/arm64/kvm/hyp/switch.c | 2 +-
arch/arm64/mm/dma-mapping.c | 12 +-
arch/arm64/mm/fault.c | 61 ++-
arch/arm64/mm/hugetlbpage.c | 12 +-
arch/arm64/mm/init.c | 5 +-
arch/arm64/mm/mmu.c | 14 +-
arch/arm64/mm/pageattr.c | 48 +-
arch/arm64/net/bpf_jit_comp.c | 2 +-
arch/powerpc/kernel/ptrace.c | 1 -
arch/x86/entry/common.c | 17 +-
arch/x86/kernel/ptrace.c | 3 -
drivers/acpi/pptt.c | 61 ++-
drivers/base/cacheinfo.c | 5 +
drivers/irqchip/irq-gic-v3.c | 7 +
drivers/perf/Kconfig | 8 +
drivers/perf/Makefile | 1 +
drivers/perf/arm_pmu_acpi.c | 72 +++
drivers/perf/arm_spe_pmu.c | 12 +-
drivers/perf/fsl_imx8_ddr_perf.c | 554 +++++++++++++++++++++
include/linux/acpi.h | 5 +
include/linux/cacheinfo.h | 2 +
include/linux/perf/arm_pmu.h | 2 +
kernel/irq/irqdesc.c | 8 +-
kernel/ptrace.c | 3 +
mm/vmalloc.c | 11 -
64 files changed, 1318 insertions(+), 312 deletions(-)
create mode 100644 Documentation/devicetree/bindings/perf/fsl-imx-ddr.txt
create mode 100644 drivers/perf/fsl_imx8_ddr_perf.c

--
Catalin

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