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Date: Fri, 22 Nov 2019 18:48:08 +0000
From: Catalin Marinas <catalin.marinas@....com>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Will Deacon <will@...nel.org>,
linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
Marc Zyngier <maz@...nel.org>, Christoph Hellwig <hch@....de>,
"Kirill A. Shutemov" <kirill@...temov.name>
Subject: [GIT PULL] arm64 updates for 5.5
Hi Linus,
Here's an early pull request for 5.5. Apart from the arm64-specific bits
(core arch and perf, new arm64 selftests), it touches the generic
cow_user_page() (reviewed by Kirill) together with a macro for x86 to
preserve the existing behaviour on this architecture. There is a
conflict with mainline in asm/asm-uaccess.h because of the arm64 fixes
that went in after -rc8. The resolution is as per current mainline
(remove the code; see my resolution after the diffstat below).
Happy Thanksgiving!
The following changes since commit 777d062e5bee0e3c0751cdcbce116a76ee2310ec:
Merge branch 'errata/tx2-219' into for-next/fixes (2019-10-17 13:42:42 -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 d8e85e144bbe12e8d82c6b05d690a34da62cc991:
arm64: Kconfig: add a choice for endianness (2019-11-14 14:39:03 +0000)
----------------------------------------------------------------
arm64 updates for 5.5:
- On ARMv8 CPUs without hardware updates of the access flag, avoid
failing cow_user_page() on PFN mappings if the pte is old. The patches
introduce an arch_faults_on_old_pte() macro, defined as false on x86.
When true, cow_user_page() makes the pte young before attempting
__copy_from_user_inatomic().
- Covert the synchronous exception handling paths in
arch/arm64/kernel/entry.S to C.
- FTRACE_WITH_REGS support for arm64.
- ZONE_DMA re-introduced on arm64 to support Raspberry Pi 4
- Several kselftest cases specific to arm64, together with a MAINTAINERS
update for these files (moved to the ARM64 PORT entry).
- Workaround for a Neoverse-N1 erratum where the CPU may fetch stale
instructions under certain conditions.
- Workaround for Cortex-A57 and A72 errata where the CPU may
speculatively execute an AT instruction and associate a VMID with the
wrong guest page tables (corrupting the TLB).
- Perf updates for arm64: additional PMU topologies on HiSilicon
platforms, support for CCN-512 interconnect, AXI ID filtering in the
IMX8 DDR PMU, support for the CCPI2 uncore PMU in ThunderX2.
- GICv3 optimisation to avoid a heavy barrier when accessing the
ICC_PMR_EL1 register.
- ELF HWCAP documentation updates and clean-up.
- SMC calling convention conduit code clean-up.
- KASLR diagnostics printed during boot
- NVIDIA Carmel CPU added to the KPTI whitelist
- Some arm64 mm clean-ups: use generic free_initrd_mem(), remove stale
macro, simplify calculation in __create_pgd_mapping(), typos.
- Kconfig clean-ups: CMDLINE_FORCE to depend on CMDLINE, choice for
endinanness to help with allmodconfig.
----------------------------------------------------------------
Anders Roxell (2):
arm64: Kconfig: make CMDLINE_FORCE depend on CMDLINE
arm64: Kconfig: add a choice for endianness
Anshuman Khandual (1):
arm64/mm: Poison initmem while freeing with free_reserved_area()
Bhupesh Sharma (1):
arm64: mm: Remove MAX_USER_VA_BITS definition
Catalin Marinas (10):
arm64: Silence clang warning on mismatched value/register sizes
Merge remote-tracking branch 'arm64/for-next/fixes' into for-next/core
Merge branch 'for-next/neoverse-n1-stale-instr' into for-next/core
Merge branch 'kvm-arm64/erratum-1319367' of git://git.kernel.org/.../maz/arm-platforms into for-next/core
arm64: Make arm64_dma32_phys_limit static
Merge branch 'for-next/entry-s-to-c' into for-next/core
Merge branch 'arm64/ftrace-with-regs' of git://git.kernel.org/.../mark/linux into for-next/core
Merge branch 'for-next/perf' into for-next/core
Merge branches 'for-next/elf-hwcap-docs', 'for-next/smccc-conduit-cleanup', 'for-next/zone-dma', 'for-next/relax-icc_pmr_el1-sync', 'for-next/double-page-fault', 'for-next/misc', 'for-next/kselftest-arm64-signal' and 'for-next/kaslr-diagnostics' into for-next/core
MAINTAINERS: Add arm64 selftests to the ARM64 PORT entry
Colin Ian King (1):
kselftest: arm64: fix spelling mistake "contiguos" -> "contiguous"
Cristian Marussi (12):
kselftest: arm64: extend toplevel skeleton Makefile
kselftest: arm64: mangle_pstate_invalid_compat_toggle and common utils
kselftest: arm64: mangle_pstate_invalid_daif_bits
kselftest: arm64: mangle_pstate_invalid_mode_el[123][ht]
kselftest: arm64: extend test_init functionalities
kselftest: arm64: add helper get_current_context
kselftest: arm64: fake_sigreturn_bad_magic
kselftest: arm64: fake_sigreturn_bad_size_for_magic0
kselftest: arm64: fake_sigreturn_missing_fpsimd
kselftest: arm64: fake_sigreturn_duplicated_fpsimd
kselftest: arm64: fake_sigreturn_bad_size
kselftest: arm64: fake_sigreturn_misaligned_sp
Dave Martin (1):
arm64: docs: cpu-feature-registers: Document ID_AA64PFR1_EL1
Ganapatrao Prabhakerrao Kulkarni (2):
Documentation: perf: Update documentation for ThunderX2 PMU uncore driver
drivers/perf: Add CCPI2 PMU support in ThunderX2 UNCORE driver.
James Morse (7):
arm64: errata: Hide CTR_EL0.DIC on systems affected by Neoverse-N1 #1542419
arm64: Fake the IminLine size on systems affected by Neoverse-N1 #1542419
arm64: compat: Workaround Neoverse-N1 #1542419 for compat user-space
arm64: remove __exception annotations
arm64: Add prototypes for functions called by entry.S
arm64: Remove asmlinkage from updated functions
arm64: entry-common: don't touch daif before bp-hardening
Jia He (4):
arm64: cpufeature: introduce helper cpu_has_hw_af()
arm64: mm: implement arch_faults_on_old_pte() on arm64
x86/mm: implement arch_faults_on_old_pte() stub on x86
mm: fix double page fault on arm64 if PTE_AF is cleared
Joakim Zhang (6):
docs/perf: Add explanation for DDR_CAP_AXI_ID_FILTER_ENHANCED quirk
bindings: perf: imx-ddr: Add new compatible string
perf/imx_ddr: Add enhanced AXI ID filter support
perf/imx_ddr: Add driver for DDR PMU in i.MX8MPlus
docs/perf: Add AXI ID filter capabilities information
perf/imx_ddr: Dump AXI ID filter info to userspace
Julien Grall (4):
docs/arm64: elf_hwcaps: sort the HWCAP{, 2} documentation by ascending value
docs/arm64: elf_hwcaps: Document HWCAP_SB
docs/arm64: cpu-feature-registers: Documents missing visible fields
docs/arm64: cpu-feature-registers: Rewrite bitfields that don't follow [e, s]
Marc Zyngier (7):
arm64: Relax ICC_PMR_EL1 accesses when ICC_CTLR_EL1.PMHE is clear
arm64: Document ICC_CTLR_EL3.PMHE setting requirements
arm64: Add ARM64_WORKAROUND_1319367 for all A57 and A72 versions
arm64: KVM: Reorder system register restoration and stage-2 activation
arm64: KVM: Disable EL1 PTW when invalidating S2 TLBs
arm64: KVM: Prevent speculative S1 PTW when restoring vcpu context
arm64: Enable and document ARM errata 1319367 and 1319537
Marek Bykowski (2):
perf: arm-ccn: Enable stats for CCN-512 interconnect
Documentation: Add documentation for CCN-512 DTS binding
Mark Brown (3):
arm64: pgtable: Correct typo in comment
arm64: kaslr: Announce KASLR status on boot
arm64: kaslr: Check command line before looking for a seed
Mark Rutland (16):
arm64: simplify syscall wrapper ifdeffery
arm/arm64: smccc/psci: add arm_smccc_1_1_get_conduit()
arm64: errata: use arm_smccc_1_1_get_conduit()
arm: spectre-v2: use arm_smccc_1_1_get_conduit()
firmware/psci: use common SMCCC_CONDUIT_*
firmware: arm_sdei: use common SMCCC_CONDUIT_*
arm64: add local_daif_inherit()
arm64: entry: convert el1_sync to C
arm64: entry: convert el0_sync to C
ftrace: add ftrace_init_nop()
module/ftrace: handle patchable-function-entry
arm64: module: rework special section handling
arm64: module/ftrace: intialize PLT at load time
arm64: insn: add encoder for MOV (register)
arm64: asm-offsets: add S_FP
arm64: ftrace: minimize ifdeffery
Masahiro Yamada (1):
arm64: mm: simplify the page end calculation in __create_pgd_mapping()
Mike Rapoport (1):
arm64: use generic free_initrd_mem()
Nathan Chancellor (1):
arm64: mm: Fix unused variable warning in zone_sizes_init
Nicolas Saenz Julienne (6):
arm64: mm: use arm64_dma_phys_limit instead of calling max_zone_dma_phys()
arm64: rename variables used to calculate ZONE_DMA32's size
arm64: use both ZONE_DMA and ZONE_DMA32
mm: refresh ZONE_DMA and ZONE_DMA32 comments in 'enum zone_type'
dma/direct: turn ARCH_ZONE_DMA_BITS into a variable
arm64: mm: reserve CMA and crashkernel in ZONE_DMA32
Rich Wiley (1):
arm64: kpti: Add NVIDIA's Carmel core to the KPTI whitelist
Shaokun Zhang (3):
arm64: cpufeature: Fix typos in comment
arm64: perf: Simplify the ARMv8 PMUv3 event attributes
drivers/perf: hisi: update the sccl_id/ccl_id for certain HiSilicon platform
Torsten Duwe (1):
arm64: implement ftrace with regs
Xiang Zheng (1):
arm64: print additional fault message when executing non-exec memory
YueHaibing (5):
perf: hisi: use devm_platform_ioremap_resource() to simplify code
perf: xgene: use devm_platform_ioremap_resource() to simplify code
perf/arm-ccn: use devm_platform_ioremap_resource() to simplify code
perf/arm-cci: use devm_platform_ioremap_resource() to simplify code
perf/smmuv3: use devm_platform_ioremap_resource() to simplify code
Yunfeng Ye (1):
arm64: psci: Reduce the waiting time for cpu_psci_cpu_kill()
Documentation/admin-guide/perf/imx-ddr.rst | 15 +-
Documentation/admin-guide/perf/thunderx2-pmu.rst | 20 +-
Documentation/arm64/booting.rst | 3 +
Documentation/arm64/cpu-feature-registers.rst | 19 +-
Documentation/arm64/elf_hwcaps.rst | 67 +++--
Documentation/arm64/silicon-errata.rst | 6 +
Documentation/devicetree/bindings/perf/arm-ccn.txt | 1 +
.../devicetree/bindings/perf/fsl-imx-ddr.txt | 1 +
MAINTAINERS | 1 +
arch/arm/mm/proc-v7-bugs.c | 10 +-
arch/arm64/Kconfig | 51 +++-
arch/arm64/Makefile | 5 +
arch/arm64/include/asm/asm-uaccess.h | 9 -
arch/arm64/include/asm/barrier.h | 12 +
arch/arm64/include/asm/cache.h | 3 +-
arch/arm64/include/asm/cpucaps.h | 4 +-
arch/arm64/include/asm/cpufeature.h | 14 +
arch/arm64/include/asm/daifflags.h | 19 +-
arch/arm64/include/asm/exception.h | 22 +-
arch/arm64/include/asm/ftrace.h | 23 ++
arch/arm64/include/asm/insn.h | 3 +
arch/arm64/include/asm/irqflags.h | 19 +-
arch/arm64/include/asm/kvm_host.h | 3 +-
arch/arm64/include/asm/memory.h | 6 -
arch/arm64/include/asm/module.h | 2 +-
arch/arm64/include/asm/pgtable-hwdef.h | 2 +-
arch/arm64/include/asm/pgtable.h | 16 +-
arch/arm64/include/asm/processor.h | 16 +-
arch/arm64/include/asm/syscall_wrapper.h | 6 -
arch/arm64/include/asm/traps.h | 10 -
arch/arm64/kernel/Makefile | 6 +-
arch/arm64/kernel/asm-offsets.c | 1 +
arch/arm64/kernel/cpu_errata.c | 82 +++--
arch/arm64/kernel/cpufeature.c | 1 +
arch/arm64/kernel/cpuinfo.c | 2 +-
arch/arm64/kernel/entry-common.c | 332 +++++++++++++++++++++
arch/arm64/kernel/entry-ftrace.S | 140 ++++++++-
arch/arm64/kernel/entry.S | 281 +----------------
arch/arm64/kernel/fpsimd.c | 6 +-
arch/arm64/kernel/ftrace.c | 123 +++++---
arch/arm64/kernel/insn.c | 13 +
arch/arm64/kernel/kaslr.c | 44 ++-
arch/arm64/kernel/module-plts.c | 3 +-
arch/arm64/kernel/module.c | 57 +++-
arch/arm64/kernel/perf_event.c | 191 ++++--------
arch/arm64/kernel/probes/kprobes.c | 4 -
arch/arm64/kernel/psci.c | 15 +-
arch/arm64/kernel/sdei.c | 3 +-
arch/arm64/kernel/sys_compat.c | 11 +
arch/arm64/kernel/syscall.c | 4 +-
arch/arm64/kernel/traps.c | 21 +-
arch/arm64/kernel/vmlinux.lds.S | 3 -
arch/arm64/kvm/hyp/switch.c | 52 +++-
arch/arm64/kvm/hyp/sysreg-sr.c | 35 ++-
arch/arm64/kvm/hyp/tlb.c | 23 ++
arch/arm64/mm/fault.c | 64 +---
arch/arm64/mm/init.c | 91 +++---
arch/arm64/mm/mmu.c | 5 +-
arch/parisc/Makefile | 1 -
arch/parisc/kernel/module.c | 10 +-
arch/parisc/kernel/module.lds | 7 -
arch/powerpc/include/asm/page.h | 9 -
arch/powerpc/mm/mem.c | 20 +-
arch/s390/include/asm/page.h | 2 -
arch/s390/mm/init.c | 1 +
arch/x86/include/asm/pgtable.h | 6 +
drivers/firmware/arm_sdei.c | 12 +-
drivers/firmware/psci/psci.c | 24 +-
drivers/irqchip/irq-gic-v3.c | 20 ++
drivers/perf/arm-cci.c | 4 +-
drivers/perf/arm-ccn.c | 4 +-
drivers/perf/arm_smmuv3_pmu.c | 5 +-
drivers/perf/fsl_imx8_ddr_perf.c | 124 ++++++--
drivers/perf/hisilicon/hisi_uncore_ddrc_pmu.c | 5 +-
drivers/perf/hisilicon/hisi_uncore_hha_pmu.c | 4 +-
drivers/perf/hisilicon/hisi_uncore_l3c_pmu.c | 4 +-
drivers/perf/hisilicon/hisi_uncore_pmu.c | 26 +-
drivers/perf/thunderx2_pmu.c | 267 +++++++++++++++--
drivers/perf/xgene_pmu.c | 14 +-
include/asm-generic/vmlinux.lds.h | 14 +-
include/linux/arm-smccc.h | 16 +
include/linux/arm_sdei.h | 6 -
include/linux/dma-direct.h | 2 +
include/linux/ftrace.h | 40 ++-
include/linux/irqchip/arm-gic-v3.h | 2 +
include/linux/mmzone.h | 45 +--
include/linux/psci.h | 9 +-
init/initramfs.c | 8 +
kernel/dma/direct.c | 13 +-
kernel/module.c | 2 +-
kernel/trace/ftrace.c | 6 +-
mm/memory.c | 104 ++++++-
tools/testing/selftests/Makefile | 1 +
tools/testing/selftests/arm64/Makefile | 64 +++-
tools/testing/selftests/arm64/README | 25 ++
tools/testing/selftests/arm64/signal/.gitignore | 3 +
tools/testing/selftests/arm64/signal/Makefile | 32 ++
tools/testing/selftests/arm64/signal/README | 59 ++++
tools/testing/selftests/arm64/signal/signals.S | 64 ++++
.../testing/selftests/arm64/signal/test_signals.c | 29 ++
.../testing/selftests/arm64/signal/test_signals.h | 100 +++++++
.../selftests/arm64/signal/test_signals_utils.c | 328 ++++++++++++++++++++
.../selftests/arm64/signal/test_signals_utils.h | 120 ++++++++
.../signal/testcases/fake_sigreturn_bad_magic.c | 52 ++++
.../signal/testcases/fake_sigreturn_bad_size.c | 77 +++++
.../testcases/fake_sigreturn_bad_size_for_magic0.c | 46 +++
.../testcases/fake_sigreturn_duplicated_fpsimd.c | 50 ++++
.../testcases/fake_sigreturn_misaligned_sp.c | 37 +++
.../testcases/fake_sigreturn_missing_fpsimd.c | 50 ++++
.../mangle_pstate_invalid_compat_toggle.c | 31 ++
.../testcases/mangle_pstate_invalid_daif_bits.c | 35 +++
.../testcases/mangle_pstate_invalid_mode_el1h.c | 15 +
.../testcases/mangle_pstate_invalid_mode_el1t.c | 15 +
.../testcases/mangle_pstate_invalid_mode_el2h.c | 15 +
.../testcases/mangle_pstate_invalid_mode_el2t.c | 15 +
.../testcases/mangle_pstate_invalid_mode_el3h.c | 15 +
.../testcases/mangle_pstate_invalid_mode_el3t.c | 15 +
.../mangle_pstate_invalid_mode_template.h | 28 ++
.../selftests/arm64/signal/testcases/testcases.c | 196 ++++++++++++
.../selftests/arm64/signal/testcases/testcases.h | 104 +++++++
.../testing/selftests/arm64/{ => tags}/.gitignore | 0
tools/testing/selftests/arm64/tags/Makefile | 7 +
.../selftests/arm64/{ => tags}/run_tags_test.sh | 0
.../testing/selftests/arm64/{ => tags}/tags_test.c | 0
124 files changed, 3535 insertions(+), 930 deletions(-)
----------------------------------------------------------------
diff --cc arch/arm64/include/asm/asm-uaccess.h
index c764cc8fb3b6,a70575edae8e..35e6145e1402
--- a/arch/arm64/include/asm/asm-uaccess.h
+++ b/arch/arm64/include/asm/asm-uaccess.h
@@@ -57,13 -57,21 +57,4 @@@ alternative_else_nop_endi
.macro uaccess_ttbr0_enable, tmp1, tmp2, tmp3
.endm
#endif
--
--/*
- * Remove the address tag from a virtual address, if present.
- * These macros are no-ops when UAO is present.
-- */
- .macro untagged_addr, dst, addr
- sbfx \dst, \addr, #0, #56
- and \dst, \dst, \addr
- .macro uaccess_disable_not_uao, tmp1, tmp2
- uaccess_ttbr0_disable \tmp1, \tmp2
-alternative_if ARM64_ALT_PAN_NOT_UAO
- SET_PSTATE_PAN(1)
-alternative_else_nop_endif
-- .endm
--
- .macro uaccess_enable_not_uao, tmp1, tmp2, tmp3
- uaccess_ttbr0_enable \tmp1, \tmp2, \tmp3
-alternative_if ARM64_ALT_PAN_NOT_UAO
- SET_PSTATE_PAN(0)
-alternative_else_nop_endif
- .endm
#endif
--
Catalin
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