mirror of
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2025-08-05 16:54:27 +00:00
145ff1ec09
- 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.
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Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 and cross-arch updates from Catalin Marinas:
"Here's a slightly wider-spread set of updates for 5.9.
Going outside the usual arch/arm64/ area is the removal of
read_barrier_depends() series from Will and the MSI/IOMMU ID
translation series from Lorenzo.
The notable arm64 updates include ARMv8.4 TLBI range operations and
translation level hint, time namespace support, and perf.
Summary:
- 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"
Link: http://lkml.kernel.org/r/20200710165203.31284-1-will@kernel.org
Link: http://lkml.kernel.org/r/20200619082013.13661-1-lorenzo.pieralisi@arm.com
* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (82 commits)
arm64: use IRQ_STACK_SIZE instead of THREAD_SIZE for irq stack
arm64/mm: save memory access in check_and_switch_context() fast switch path
arm64: sigcontext.h: delete duplicated word
arm64: ptrace.h: delete duplicated word
arm64: pgtable-hwdef.h: delete duplicated words
bus: fsl-mc: Add ACPI support for fsl-mc
bus/fsl-mc: Refactor the MSI domain creation in the DPRC driver
of/irq: Make of_msi_map_rid() PCI bus agnostic
of/irq: make of_msi_map_get_device_domain() bus agnostic
dt-bindings: arm: fsl: Add msi-map device-tree binding for fsl-mc bus
of/device: Add input id to of_dma_configure()
of/iommu: Make of_map_rid() PCI agnostic
ACPI/IORT: Add an input ID to acpi_dma_configure()
ACPI/IORT: Remove useless PCI bus walk
ACPI/IORT: Make iort_msi_map_rid() PCI agnostic
ACPI/IORT: Make iort_get_device_domain IRQ domain agnostic
ACPI/IORT: Make iort_match_node_callback walk the ACPI namespace for NC
arm64: enable time namespace support
arm64/vdso: Restrict splitting VVAR VMA
arm64/vdso: Handle faults on timens page
...
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| .. | ||
| hardware | ||
| mach | ||
| vdso | ||
| xen | ||
| arch_gicv3.h | ||
| arch_timer.h | ||
| arm-cci.h | ||
| asm-offsets.h | ||
| assembler.h | ||
| atomic.h | ||
| auxvec.h | ||
| barrier.h | ||
| bitops.h | ||
| bitrev.h | ||
| bL_switcher.h | ||
| bug.h | ||
| bugs.h | ||
| cache.h | ||
| cacheflush.h | ||
| cachetype.h | ||
| checksum.h | ||
| clocksource.h | ||
| cmpxchg.h | ||
| compiler.h | ||
| cp15.h | ||
| cpu.h | ||
| cpufeature.h | ||
| cpuidle.h | ||
| cputype.h | ||
| cti.h | ||
| dcc.h | ||
| delay.h | ||
| device.h | ||
| div64.h | ||
| dma-contiguous.h | ||
| dma-direct.h | ||
| dma-iommu.h | ||
| dma-mapping.h | ||
| dma.h | ||
| dmi.h | ||
| domain.h | ||
| ecard.h | ||
| edac.h | ||
| efi.h | ||
| elf.h | ||
| entry-macro-multi.S | ||
| exception.h | ||
| fb.h | ||
| fiq.h | ||
| firmware.h | ||
| fixmap.h | ||
| floppy.h | ||
| fncpy.h | ||
| fpstate.h | ||
| ftrace.h | ||
| futex.h | ||
| glue-cache.h | ||
| glue-df.h | ||
| glue-pf.h | ||
| glue-proc.h | ||
| glue.h | ||
| gpio.h | ||
| hardirq.h | ||
| highmem.h | ||
| hugetlb-3level.h | ||
| hugetlb.h | ||
| hw_breakpoint.h | ||
| hw_irq.h | ||
| hwcap.h | ||
| hypervisor.h | ||
| ide.h | ||
| idmap.h | ||
| insn.h | ||
| io.h | ||
| irq.h | ||
| irq_work.h | ||
| irqflags.h | ||
| jump_label.h | ||
| Kbuild | ||
| kexec.h | ||
| kgdb.h | ||
| kmap_types.h | ||
| kprobes.h | ||
| krait-l2-accessors.h | ||
| linkage.h | ||
| mc146818rtc.h | ||
| mcpm.h | ||
| mcs_spinlock.h | ||
| memblock.h | ||
| memory.h | ||
| mmu.h | ||
| mmu_context.h | ||
| module.h | ||
| mpu.h | ||
| mtd-xip.h | ||
| neon.h | ||
| nwflash.h | ||
| opcodes-sec.h | ||
| opcodes-virt.h | ||
| opcodes.h | ||
| outercache.h | ||
| page-nommu.h | ||
| page.h | ||
| paravirt.h | ||
| patch.h | ||
| pci.h | ||
| percpu.h | ||
| perf_event.h | ||
| pgalloc.h | ||
| pgtable-2level-hwdef.h | ||
| pgtable-2level-types.h | ||
| pgtable-2level.h | ||
| pgtable-3level-hwdef.h | ||
| pgtable-3level-types.h | ||
| pgtable-3level.h | ||
| pgtable-hwdef.h | ||
| pgtable-nommu.h | ||
| pgtable.h | ||
| probes.h | ||
| proc-fns.h | ||
| processor.h | ||
| procinfo.h | ||
| prom.h | ||
| psci.h | ||
| ptdump.h | ||
| ptrace.h | ||
| sections.h | ||
| secure_cntvoff.h | ||
| set_memory.h | ||
| setup.h | ||
| shmparam.h | ||
| signal.h | ||
| smp.h | ||
| smp_plat.h | ||
| smp_scu.h | ||
| smp_twd.h | ||
| sparsemem.h | ||
| spinlock.h | ||
| spinlock_types.h | ||
| stackprotector.h | ||
| stacktrace.h | ||
| string.h | ||
| suspend.h | ||
| swab.h | ||
| switch_to.h | ||
| sync_bitops.h | ||
| syscall.h | ||
| system_info.h | ||
| system_misc.h | ||
| tcm.h | ||
| therm.h | ||
| thread_info.h | ||
| thread_notify.h | ||
| timex.h | ||
| tlb.h | ||
| tlbflush.h | ||
| tls.h | ||
| topology.h | ||
| traps.h | ||
| uaccess-asm.h | ||
| uaccess.h | ||
| ucontext.h | ||
| unaligned.h | ||
| unified.h | ||
| unistd.h | ||
| unwind.h | ||
| uprobes.h | ||
| user.h | ||
| v7m.h | ||
| vdso.h | ||
| vdso_datapage.h | ||
| vermagic.h | ||
| vfp.h | ||
| vfpmacros.h | ||
| vga.h | ||
| virt.h | ||
| vmalloc.h | ||
| word-at-a-time.h | ||
| xor.h | ||