[GIT PULL] arm64 and cross-arch updates for 5.9

From: Catalin Marinas
Date: Mon Aug 03 2020 - 14:53:54 EST

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Hi Linus,

Here's a slightly wider-spread set of updates for 5.9. Going outside the
usual arch/arm64/ is the removal of read_barrier_depends() series from
Will (http://lkml.kernel.org/r/20200710165203.31284-1-will@xxxxxxxxxx)
and the MSI/IOMMU ID translation series from Lorenzo
(http://lkml.kernel.org/r/20200619082013.13661-1-lorenzo.pieralisi@xxxxxxx).
The notable arm64 updates include ARMv8.4 TLBI range operations and
translation level hint, time namespace support, perf.

There is only a trivial conflict with v5.8, resolved as:

------------8<-------------------------
diff --cc arch/arm64/include/asm/vdso/compat_gettimeofday.h
index 9a625e8947ff,d0cbb04bfc10..85b6873b1cfa
--- a/arch/arm64/include/asm/vdso/compat_gettimeofday.h
+++ b/arch/arm64/include/asm/vdso/compat_gettimeofday.h
@@@ -152,12 -153,18 +153,24 @@@ static __always_inline const struct vds
return ret;
}

+static inline bool vdso_clocksource_ok(const struct vdso_data *vd)
+{
+ return vd->clock_mode == VDSO_CLOCKMODE_ARCHTIMER;
+}
+#define vdso_clocksource_ok vdso_clocksource_ok
+
+ #ifdef CONFIG_TIME_NS
+ static __always_inline const struct vdso_data *__arch_get_timens_vdso_data(void)
+ {
+ const struct vdso_data *ret;
+
+ /* See __arch_get_vdso_data(). */
+ asm volatile("mov %0, %1" : "=r"(ret) : "r"(_timens_data));
+
+ return ret;
+ }
+ #endif
+
#endif /* !__ASSEMBLY__ */

#endif /* __ASM_VDSO_GETTIMEOFDAY_H */
------------8<-------------------------

If there are any issues, please let me know. I can send separate pull
requests if necessary. Thanks.

The following changes since commit 9ebcfadb0610322ac537dd7aa5d9cbc2b2894c68:

Linux 5.8-rc3 (2020-06-28 15:00:24 -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 0e4cd9f2654915be8d09a1bd1b405ce5426e64c4:

Merge branch 'for-next/read-barrier-depends' into for-next/core (2020-07-31 18:09:57 +0100)

----------------------------------------------------------------
arm64 and cross-arch updates for 5.9:

- Removal of the tremendously unpopular read_barrier_depends() barrier,
which is a NOP on all architectures apart from Alpha, in favour of
allowing architectures to override READ_ONCE() and do whatever dance
they need to do to ensure address dependencies provide LOAD ->
LOAD/STORE ordering. This work also offers a potential solution if
compilers are shown to convert LOAD -> LOAD address dependencies into
control dependencies (e.g. under LTO), as weakly ordered architectures
will effectively be able to upgrade READ_ONCE() to smp_load_acquire().
The latter case is not used yet, but will be discussed further at LPC.

- Make the MSI/IOMMU input/output ID translation PCI agnostic, augment
the MSI/IOMMU ACPI/OF ID mapping APIs to accept an input ID
bus-specific parameter and apply the resulting changes to the device
ID space provided by the Freescale FSL bus.

- arm64 support for TLBI range operations and translation table level
hints (part of the ARMv8.4 architecture version).

- Time namespace support for arm64.

- Export the virtual and physical address sizes in vmcoreinfo for
makedumpfile and crash utilities.

- CPU feature handling cleanups and checks for programmer errors
(overlapping bit-fields).

- ACPI updates for arm64: disallow AML accesses to EFI code regions and
kernel memory.

- perf updates for arm64.

- Miscellaneous fixes and cleanups, most notably PLT counting
optimisation for module loading, recordmcount fix to ignore
relocations other than R_AARCH64_CALL26, CMA areas reserved for
gigantic pages on 16K and 64K configurations.

- Trivial typos, duplicate words.

----------------------------------------------------------------
Ahmed S. Darwish (1):
time/sched_clock: Use raw_read_seqcount_latch()

Andrei Vagin (6):
arm64/vdso: use the fault callback to map vvar pages
arm64/vdso: Zap vvar pages when switching to a time namespace
arm64/vdso: Add time namespace page
arm64/vdso: Handle faults on timens page
arm64/vdso: Restrict splitting VVAR VMA
arm64: enable time namespace support

Andrew Scull (1):
smccc: Make constants available to assembly

Anshuman Khandual (7):
arm64/panic: Unify all three existing notifier blocks
arm64/cpufeature: Add remaining feature bits in ID_AA64MMFR0 register
arm64/cpufeature: Add remaining feature bits in ID_AA64MMFR1 register
arm64/cpufeature: Add remaining feature bits in ID_AA64MMFR2 register
arm64/cpufeature: Replace all open bits shift encodings with macros
arm64/cpufeature: Validate feature bits spacing in arm64_ftr_regs[]
arm64/hugetlb: Reserve CMA areas for gigantic pages on 16K and 64K configs

Ard Biesheuvel (3):
arm64/acpi: disallow AML memory opregions to access kernel memory
arm64/acpi: disallow writeable AML opregion mapping for EFI code regions
arm64/entry: deduplicate SW PAN entry/exit routines

Bhupesh Sharma (3):
crash_core, vmcoreinfo: Append 'MAX_PHYSMEM_BITS' to vmcoreinfo
arm64/crash_core: Export TCR_EL1.T1SZ in vmcoreinfo
arm64/defconfig: Enable CONFIG_KEXEC_FILE

Catalin Marinas (5):
arm64: Shift the __tlbi_level() indentation left
arm64: Reserve HWCAP2_MTE as (1 << 18)
Merge branches 'for-next/misc', 'for-next/vmcoreinfo', 'for-next/cpufeature', 'for-next/acpi', 'for-next/perf', 'for-next/timens', 'for-next/msi-iommu' and 'for-next/trivial' into for-next/core
Merge branch 'for-next/tlbi' into for-next/core
Merge branch 'for-next/read-barrier-depends' into for-next/core

Diana Craciun (2):
of/irq: make of_msi_map_get_device_domain() bus agnostic
bus/fsl-mc: Refactor the MSI domain creation in the DPRC driver

Gavin Shan (1):
arm64/mm: Redefine CONT_{PTE, PMD}_SHIFT

Gregory Herrero (1):
recordmcount: only record relocation of type R_AARCH64_CALL26 on arm64.

Jay Chen (1):
perf/smmuv3: To simplify code for ioremap page in pmcg

Laurentiu Tudor (1):
dt-bindings: arm: fsl: Add msi-map device-tree binding for fsl-mc bus

Leo Yan (1):
tools headers UAPI: Update tools's copy of linux/perf_event.h

Lorenzo Pieralisi (8):
ACPI/IORT: Make iort_match_node_callback walk the ACPI namespace for NC
ACPI/IORT: Make iort_get_device_domain IRQ domain agnostic
ACPI/IORT: Make iort_msi_map_rid() PCI agnostic
ACPI/IORT: Remove useless PCI bus walk
ACPI/IORT: Add an input ID to acpi_dma_configure()
of/iommu: Make of_map_rid() PCI agnostic
of/device: Add input id to of_dma_configure()
of/irq: Make of_msi_map_rid() PCI bus agnostic

Makarand Pawagi (1):
bus: fsl-mc: Add ACPI support for fsl-mc

Maninder Singh (1):
arm64: use IRQ_STACK_SIZE instead of THREAD_SIZE for irq stack

Marc Zyngier (3):
arm64: Detect the ARMv8.4 TTL feature
arm64: Document SW reserved PTE/PMD bits in Stage-2 descriptors
arm64: Add level-hinted TLB invalidation helper

Mark Brown (2):
arm64: Document sysctls for emulated deprecated instructions
arm64: stacktrace: Move export for save_stack_trace_tsk()

Peter Zijlstra (5):
sched_clock: Expose struct clock_read_data
arm64: perf: Implement correct cap_user_time
arm64: perf: Only advertise cap_user_time for arch_timer
perf: Add perf_event_mmap_page::cap_user_time_short ABI
arm64: perf: Add cap_user_time_short

Peter Zijlstra (Intel) (1):
tlb: mmu_gather: add tlb_flush_*_range APIs

Pingfan Liu (1):
arm64/mm: save memory access in check_and_switch_context() fast switch path

Randy Dunlap (3):
arm64: pgtable-hwdef.h: delete duplicated words
arm64: ptrace.h: delete duplicated word
arm64: sigcontext.h: delete duplicated word

Saravana Kannan (1):
arm64/module: Optimize module load time by optimizing PLT counting

SeongJae Park (1):
Documentation/barriers/kokr: Remove references to [smp_]read_barrier_depends()

Shaokun Zhang (2):
arm64: perf: Correct the event index in sysfs
arm64: perf: Expose some new events via sysfs

Vladimir Murzin (1):
arm64: s/AMEVTYPE/AMEVTYPER

Will Deacon (15):
tools: bpf: Use local copy of headers including uapi/linux/filter.h
compiler.h: Split {READ,WRITE}_ONCE definitions out into rwonce.h
asm/rwonce: Allow __READ_ONCE to be overridden by the architecture
alpha: Override READ_ONCE() with barriered implementation
asm/rwonce: Remove smp_read_barrier_depends() invocation
asm/rwonce: Don't pull <asm/barrier.h> into 'asm-generic/rwonce.h'
vhost: Remove redundant use of read_barrier_depends() barrier
alpha: Replace smp_read_barrier_depends() usage with smp_[r]mb()
locking/barriers: Remove definitions for [smp_]read_barrier_depends()
Documentation/barriers: Remove references to [smp_]read_barrier_depends()
tools/memory-model: Remove smp_read_barrier_depends() from informal doc
include/linux: Remove smp_read_barrier_depends() from comments
checkpatch: Remove checks relating to [smp_]read_barrier_depends()
compiler.h: Move compiletime_assert() macros into compiler_types.h
arm64: Reduce the number of header files pulled into vmlinux.lds.S

Zhenyu Ye (7):
arm64: Add tlbi_user_level TLB invalidation helper
arm64: tlb: Set the TTL field in flush_tlb_range
arm64: tlb: Set the TTL field in flush_*_tlb_range
arm64: tlb: don't set the ttl value in flush_tlb_page_nosync
arm64: tlb: Detect the ARMv8.4 TLBI RANGE feature
arm64: enable tlbi range instructions
arm64: tlb: Use the TLBI RANGE feature in arm64

.../RCU/Design/Requirements/Requirements.rst | 2 +-
Documentation/admin-guide/kdump/vmcoreinfo.rst | 16 ++
.../devicetree/bindings/misc/fsl,qoriq-mc.txt | 50 +++++-
Documentation/memory-barriers.txt | 156 +-----------------
.../translations/ko_KR/memory-barriers.txt | 146 +----------------
arch/alpha/include/asm/atomic.h | 16 +-
arch/alpha/include/asm/barrier.h | 59 +------
arch/alpha/include/asm/pgtable.h | 10 +-
arch/alpha/include/asm/rwonce.h | 35 ++++
arch/arm/include/asm/vdso/gettimeofday.h | 1 +
arch/arm64/Kconfig | 23 ++-
arch/arm64/Makefile | 7 +
arch/arm64/configs/defconfig | 1 +
arch/arm64/include/asm/acpi.h | 15 +-
arch/arm64/include/asm/cpucaps.h | 4 +-
arch/arm64/include/asm/cpufeature.h | 7 +
arch/arm64/include/asm/hugetlb.h | 2 +
arch/arm64/include/asm/hwcap.h | 1 +
arch/arm64/include/asm/kernel-pgtable.h | 2 +-
arch/arm64/include/asm/memory.h | 12 +-
arch/arm64/include/asm/mmu_context.h | 6 +-
arch/arm64/include/asm/perf_event.h | 27 ++++
arch/arm64/include/asm/pgtable-hwdef.h | 23 +--
arch/arm64/include/asm/pgtable.h | 10 ++
arch/arm64/include/asm/ptrace.h | 2 +-
arch/arm64/include/asm/stage2_pgtable.h | 9 ++
arch/arm64/include/asm/sysreg.h | 49 +++++-
arch/arm64/include/asm/tlb.h | 29 +++-
arch/arm64/include/asm/tlbflush.h | 177 +++++++++++++++++++--
arch/arm64/include/asm/uaccess.h | 1 +
arch/arm64/include/asm/vdso.h | 2 +
arch/arm64/include/asm/vdso/compat_gettimeofday.h | 13 ++
arch/arm64/include/asm/vdso/gettimeofday.h | 9 ++
arch/arm64/include/uapi/asm/hwcap.h | 1 +
arch/arm64/include/uapi/asm/sigcontext.h | 2 +-
arch/arm64/kernel/acpi.c | 75 +++++++++
arch/arm64/kernel/cpufeature.c | 149 ++++++++++++-----
arch/arm64/kernel/cpuinfo.c | 1 +
arch/arm64/kernel/crash_core.c | 10 ++
arch/arm64/kernel/entry.S | 96 +++++------
arch/arm64/kernel/module-plts.c | 46 +++++-
arch/arm64/kernel/perf_event.c | 89 ++++++++---
arch/arm64/kernel/setup.c | 24 +--
arch/arm64/kernel/stacktrace.c | 2 +-
arch/arm64/kernel/traps.c | 2 +-
arch/arm64/kernel/vdso.c | 136 ++++++++++++++--
arch/arm64/kernel/vdso/vdso.lds.S | 5 +-
arch/arm64/kernel/vdso32/vdso.lds.S | 5 +-
arch/arm64/kernel/vmlinux.lds.S | 1 -
arch/arm64/kvm/hyp-init.S | 1 +
arch/arm64/kvm/sys_regs.c | 68 ++++----
arch/arm64/mm/context.c | 10 +-
arch/arm64/mm/hugetlbpage.c | 42 ++++-
arch/arm64/mm/init.c | 22 +--
arch/riscv/include/asm/vdso/gettimeofday.h | 1 +
drivers/acpi/arm64/iort.c | 108 +++++++++----
drivers/acpi/scan.c | 8 +-
drivers/bus/fsl-mc/dprc-driver.c | 31 +---
drivers/bus/fsl-mc/fsl-mc-bus.c | 79 ++++++---
drivers/bus/fsl-mc/fsl-mc-msi.c | 36 +++--
drivers/bus/fsl-mc/fsl-mc-private.h | 6 +-
drivers/iommu/of_iommu.c | 81 +++++-----
drivers/irqchip/irq-gic-v3-its-fsl-mc-msi.c | 105 +++++++++---
drivers/of/base.c | 42 ++---
drivers/of/device.c | 8 +-
drivers/of/irq.c | 34 ++--
drivers/pci/msi.c | 9 +-
drivers/perf/arm_smmuv3_pmu.c | 3 +-
drivers/vhost/vhost.c | 5 -
include/acpi/acpi_bus.h | 9 +-
include/asm-generic/Kbuild | 1 +
include/asm-generic/barrier.h | 19 +--
include/asm-generic/rwonce.h | 90 +++++++++++
include/asm-generic/tlb.h | 55 +++++--
include/linux/acpi.h | 7 +
include/linux/acpi_iort.h | 20 +--
include/linux/arm-smccc.h | 44 ++---
include/linux/compiler.h | 134 +---------------
include/linux/compiler_types.h | 41 +++++
include/linux/nospec.h | 2 +
include/linux/of.h | 4 +-
include/linux/of_device.h | 16 +-
include/linux/of_iommu.h | 6 +-
include/linux/of_irq.h | 13 +-
include/linux/percpu-refcount.h | 2 +-
include/linux/ptr_ring.h | 2 +-
include/linux/sched_clock.h | 28 ++++
include/uapi/linux/perf_event.h | 23 ++-
include/vdso/datapage.h | 1 +
kernel/crash_core.c | 1 +
kernel/time/sched_clock.c | 41 ++---
mm/memory.c | 2 +-
scripts/checkpatch.pl | 9 +-
scripts/recordmcount.c | 6 +
tools/bpf/Makefile | 3 +-
tools/include/uapi/linux/filter.h | 90 +++++++++++
tools/include/uapi/linux/perf_event.h | 23 ++-
tools/memory-model/Documentation/explanation.txt | 26 ++-
98 files changed, 1892 insertions(+), 1091 deletions(-)
create mode 100644 arch/alpha/include/asm/rwonce.h
create mode 100644 include/asm-generic/rwonce.h
create mode 100644 tools/include/uapi/linux/filter.h

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