[GIT PULL] Please pull powerpc/linux.git powerpc-5.6-1 tag

From: Michael Ellerman
Date: Tue Feb 04 2020 - 07:11:09 EST

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Hi Linus,

Please pull powerpc updates for 5.6.

A pretty small batch for us, and apologies for it being a bit late, I wanted to
sneak Christophe's user_access_begin() series in.

No conflicts or other issues I'm aware of.

cheers

The following changes since commit c79f46a282390e0f5b306007bf7b11a46d529538:

Linux 5.5-rc5 (2020-01-05 14:23:27 -0800)

are available in the git repository at:

https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git tags/powerpc-5.6-1

for you to fetch changes up to 4c25df5640ae6e4491ee2c50d3f70c1559ef037d:

Merge branch 'topic/user-access-begin' into next (2020-02-01 21:47:17 +1100)

- ------------------------------------------------------------------
powerpc updates for 5.6

- Implement user_access_begin() and friends for our platforms that support
controlling kernel access to userspace.

- Enable CONFIG_VMAP_STACK on 32-bit Book3S and 8xx.

- Some tweaks to our pseries IOMMU code to allow SVMs ("secure" virtual
machines) to use the IOMMU.

- Add support for CLOCK_{REALTIME/MONOTONIC}_COARSE to the 32-bit VDSO, and
some other improvements.

- A series to use the PCI hotplug framework to control opencapi card's so that
they can be reset and re-read after flashing a new FPGA image.

As well as other minor fixes and improvements as usual.

Thanks to:
Alastair D'Silva, Alexandre Ghiti, Alexey Kardashevskiy, Andrew Donnellan,
Aneesh Kumar K.V, Anju T Sudhakar, Bai Yingjie, Chen Zhou, Christophe Leroy,
Frederic Barrat, Greg Kurz, Jason A. Donenfeld, Joel Stanley, Jordan Niethe,
Julia Lawall, Krzysztof Kozlowski, Laurent Dufour, Laurentiu Tudor, Linus
Walleij, Michael Bringmann, Nathan Chancellor, Nicholas Piggin, Nick
Desaulniers, Oliver O'Halloran, Peter Ujfalusi, Pingfan Liu, Ram Pai, Randy
Dunlap, Russell Currey, Sam Bobroff, Sebastian Andrzej Siewior, Shawn
Anastasio, Stephen Rothwell, Steve Best, Sukadev Bhattiprolu, Thiago Jung
Bauermann, Tyrel Datwyler, Vaibhav Jain.

- ------------------------------------------------------------------
Alexandre Ghiti (1):
powerpc: Do not consider weak unresolved symbol relocations as bad

Alexey Kardashevskiy (3):
powerpc/pseries: Allow not having ibm, hypertas-functions::hcall-multi-tce for DDW
powerpc/pseries/iommu: Separate FW_FEATURE_MULTITCE to put/stuff features
powerpc/pseries/svm: Allow IOMMU to work in SVM

Aneesh Kumar K.V (2):
powerpc/papr_scm: Update debug message
powerpc/papr_scm: Don't enable direct map for a region by default

Anju T Sudhakar (1):
powerpc/imc: Add documentation for IMC and trace-mode

Bai Yingjie (2):
powerpc32/booke: consistently return phys_addr_t in __pa()
powerpc/mpc85xx: also write addr_h to spin table for 64bit boot entry

Chen Zhou (1):
powerpc/maple: Fix comparing pointer to 0

Christophe Leroy (47):
powerpc/ptdump: don't entirely rebuild kernel when selecting CONFIG_PPC_DEBUG_WX
powerpc/ptdump: Fix W+X verification call in mark_rodata_ro()
powerpc/ptdump: Fix W+X verification
powerpc/ptdump: Only enable PPC_CHECK_WX with STRICT_KERNEL_RWX
powerpc/8xx: Fix permanently mapped IMMR region.
powerpc/hw_breakpoints: Rewrite 8xx breakpoints to allow any address range size.
selftests/powerpc: Enable range tests on 8xx in ptrace-hwbreak.c selftest
powerpc/devicetrees: Change 'gpios' to 'cs-gpios' on fsl, spi nodes
powerpc/32: Add VDSO version of getcpu on non SMP
powerpc/vdso32: Add support for CLOCK_{REALTIME/MONOTONIC}_COARSE
powerpc/vdso32: inline __get_datapage()
powerpc/vdso32: Don't read cache line size from the datapage on PPC32.
powerpc/vdso32: use LOAD_REG_IMMEDIATE()
powerpc/vdso32: implement clock_getres entirely
powerpc/vdso32: miscellaneous optimisations
powerpc: use probe_user_read() and probe_user_write()
powerpc/32: replace MTMSRD() by mtmsr
powerpc/32: Add EXCEPTION_PROLOG_0 in head_32.h
powerpc/32: save DEAR/DAR before calling handle_page_fault
powerpc/32: move MSR_PR test into EXCEPTION_PROLOG_0
powerpc/32: add a macro to get and/or save DAR and DSISR on stack.
powerpc/32: prepare for CONFIG_VMAP_STACK
powerpc: align stack to 2 * THREAD_SIZE with VMAP_STACK
powerpc/32: Add early stack overflow detection with VMAP stack.
powerpc/32: Use vmapped stacks for interrupts
powerpc/8xx: Use alternative scratch registers in DTLB miss handler
powerpc/8xx: Drop exception entries for non-existing exceptions
powerpc/8xx: Move DataStoreTLBMiss perf handler
powerpc/8xx: Split breakpoint exception
powerpc/8xx: Enable CONFIG_VMAP_STACK
powerpc/32s: Reorganise DSI handler.
powerpc/32s: Avoid crossing page boundary while changing SRR0/1.
powerpc/32s: Enable CONFIG_VMAP_STACK
powerpc/mm: Don't log user reads to 0xffffffff
powerpc/32: Add support of KASAN_VMALLOC
powerpc/kconfig: Move CONFIG_PPC32 into Kconfig.cputype
powerpc/32: Force KASAN_VMALLOC for modules
powerpc/32: Simplify KASAN init
powerpc/32: Reuse orphaned memblocks in kasan_init_shadow_page_tables()
powerpc/32s: Fix CPU wake-up from sleep mode
powerpc/32s: Fix bad_kuap_fault()
powerpc/kuap: Fix set direction in allow/prevent_user_access()
powerpc/32s: Drop NULL addr verification
powerpc/32s: Prepare prevent_user_access() for user_access_end()
powerpc: Implement user_access_begin and friends
powerpc: Implement user_access_save() and user_access_restore()
powerpc/32s: Fix kasan_early_hash_table() for CONFIG_VMAP_STACK

Frederic Barrat (11):
powerpc/powernv/ioda: Fix ref count for devices with their own PE
powerpc/powernv/ioda: Protect PE list
powerpc/powernv/ioda: set up PE on opencapi device when enabling
powerpc/powernv/ioda: Release opencapi device
powerpc/powernv/ioda: Find opencapi slot for a device node
pci/hotplug/pnv-php: Remove erroneous warning
pci/hotplug/pnv-php: Improve error msg on power state change failure
pci/hotplug/pnv-php: Register opencapi slots
pci/hotplug/pnv-php: Relax check when disabling slot
pci/hotplug/pnv-php: Wrap warnings in macro
ocxl: Add PCI hotplug dependency to Kconfig

Greg Kurz (2):
KVM: PPC: Book3S HV: XIVE: Fix typo in comment
powerpc/xive: Drop extern qualifiers from header function prototypes

Joel Stanley (1):
powerpc/configs/skiroot: Enable security features

Jordan Niethe (2):
powerpc/64: Use {SAVE,REST}_NVGPRS macros
powerpc/mm: Remove kvm radix prefetch workaround for Power9 DD2.2

Julia Lawall (4):
powerpc/mpic: constify copied structure
powerpc/83xx: use resource_size
powerpc/powernv: use resource_size
misc: cxl: use mmgrab

Krzysztof Kozlowski (2):
macintosh: Fix Kconfig indentation
powerpc: configs: Cleanup old Kconfig options

Laurentiu Tudor (1):
MAINTAINERS: Add myself as maintainer of ehv_bytechan tty driver

Michael Bringmann (1):
powerpc/pseries/lparcfg: Fix display of Maximum Memory

Michael Ellerman (12):
selftests/powerpc: Add a test of bad (out-of-range) accesses
powerpc/pseries: Remove redundant select of PPC_DOORBELL
powerpc/8xx: Move tail of alignment exception out of line
powerpc/configs: Drop CONFIG_QLGE which moved to staging
powerpc/configs: NET_CADENCE became NET_VENDOR_CADENCE
powerpc/configs: Drop NET_VENDOR_HP which moved to staging
powerpc/configs/skiroot: Drop HID_LOGITECH
powerpc/configs/skiroot: Drop default n CONFIG_CRYPTO_ECHAINIV
powerpc/configs/skiroot: Update for symbol movement only
powerpc/configs/skiroot: Disable xmon default & enable reboot on panic
powerpc/configs/skiroot: Enable some more hardening options
Merge branch 'topic/user-access-begin' into next

Nathan Chancellor (1):
powerpc/44x: Adjust indentation in ibm4xx_denali_fixup_memsize

Nicholas Piggin (1):
powerpc/64s: Reimplement power4_idle code in C

Oliver O'Halloran (24):
powerpc/powernv/iov: Ensure the pdn for VFs always contains a valid PE number
powerpc/pci: Remove pcibios_setup_bus_devices()
powerpc/eeh_cache: Don't use pci_dn when inserting new ranges
powerpc/eeh_sysfs: Fix incorrect comment
powerpc/eeh_sysfs: ifdef pseries sr-iov sysfs properties
powerpc/eeh_sysfs: Remove double pci_dn lookup.
powerpc/eeh_sysfs: Make clearing EEH_DEV_SYSFS saner
powerpc/sriov: Remove VF eeh_dev state when disabling SR-IOV
powerpc/pcidn: Make VF pci_dn management CONFIG_PCI_IOV specific
powerpc/pcidn: Warn when sriov pci_dn management is used incorrectly
powernv/pci: Use pnv_phb as the private data for debugfs entries
powernv/pci: Allow any write trigger the diag dump
powernv/pci: Add a debugfs entry to dump PHB's IODA PE state
powerpc/eeh: Only dump stack once if an MMIO loop is detected
powerpc/powernv: Rework exports to support subnodes
powerpc/powernv: Use common code for the symbol_map export
powerpc/xmon: Allow passing an argument to ppc_md.restart()
powerpc/powernv: Allow manually invoking special reboots
powerpc/pci: Fold pcibios_setup_device() into pcibios_bus_add_device()
powernv/pci: Remove dma_dev_setup() for NPU PHBs
powerpc/iov: Move VF pdev fixup into pcibios_fixup_iov()
powernv/pci: Fold pnv_pci_dma_dev_setup() into the pci-ioda.c version
powernv/pci: Move pnv_pci_dma_bus_setup() to pci-ioda.c
selftests/eeh: Bump EEH wait time to 60s

Peter Ujfalusi (1):
powerpc/512x: Use dma_request_chan() instead dma_request_slave_channel()

Pingfan Liu (1):
powerpc/pseries: Advance pfn if section is not present in lmb_is_removable()

Ram Pai (1):
Revert "powerpc/pseries/iommu: Don't use dma_iommu_ops on secure guests"

Randy Dunlap (1):
powerpc: indent to improve Kconfig readability

Russell Currey (2):
powerpc/book3s64/hash: Disable 16M linear mapping size if not aligned
powerpc: Remove STRICT_KERNEL_RWX incompatibility with RELOCATABLE

Sebastian Andrzej Siewior (1):
powerpc/85xx: Get twr_p102x to compile again

Shawn Anastasio (1):
powerpc/pci: Fix pcibios_setup_device() ordering

Sukadev Bhattiprolu (2):
powerpc/xmon: don't access ASDR in VMs
powerpc/xmon: Fix compile error in print_insn* functions

Tyrel Datwyler (1):
powerpc/pseries/vio: Fix iommu_table use-after-free refcount warning

Vaibhav Jain (2):
powerpc/papr_scm: Fix leaking 'bus_desc.provider_name' in some paths
powerpc: Provide initial documentation for PAPR hcalls

Documentation/devicetree/bindings/spi/fsl-spi.txt | 8 +-
Documentation/powerpc/imc.rst | 199 ++++++++++++++++
Documentation/powerpc/index.rst | 2 +
Documentation/powerpc/papr_hcalls.rst | 250 ++++++++++++++++++++
arch/powerpc/Kconfig | 9 +-
arch/powerpc/Kconfig.debug | 2 +-
arch/powerpc/Makefile.postlink | 4 +-
arch/powerpc/boot/4xx.c | 2 +-
arch/powerpc/boot/dts/mgcoge.dts | 2 +-
arch/powerpc/boot/dts/mpc832x_rdb.dts | 2 +-
arch/powerpc/boot/dts/mpc8610_hpcd.dts | 2 +-
arch/powerpc/configs/44x/akebono_defconfig | 1 -
arch/powerpc/configs/44x/sam440ep_defconfig | 2 -
arch/powerpc/configs/52xx/pcm030_defconfig | 2 -
arch/powerpc/configs/83xx/kmeter1_defconfig | 2 -
arch/powerpc/configs/adder875_defconfig | 1 -
arch/powerpc/configs/ep8248e_defconfig | 1 -
arch/powerpc/configs/ep88xc_defconfig | 1 -
arch/powerpc/configs/mgcoge_defconfig | 1 -
arch/powerpc/configs/mpc512x_defconfig | 1 -
arch/powerpc/configs/mpc885_ads_defconfig | 1 -
arch/powerpc/configs/powernv_defconfig | 1 -
arch/powerpc/configs/ppc64_defconfig | 1 -
arch/powerpc/configs/ppc6xx_defconfig | 1 -
arch/powerpc/configs/pseries_defconfig | 1 -
arch/powerpc/configs/skiroot_defconfig | 68 +++---
arch/powerpc/configs/storcenter_defconfig | 1 -
arch/powerpc/configs/tqm8xx_defconfig | 1 -
arch/powerpc/include/asm/book3s/32/kup.h | 68 +++++-
arch/powerpc/include/asm/book3s/32/pgtable.h | 5 +
arch/powerpc/include/asm/book3s/64/kup-radix.h | 40 +++-
arch/powerpc/include/asm/cputable.h | 7 +-
arch/powerpc/include/asm/firmware.h | 6 +-
arch/powerpc/include/asm/hw_breakpoint.h | 4 +
arch/powerpc/include/asm/kasan.h | 2 +
arch/powerpc/include/asm/kup.h | 49 +++-
arch/powerpc/include/asm/nohash/32/kup-8xx.h | 21 +-
arch/powerpc/include/asm/nohash/32/pgtable.h | 5 +
arch/powerpc/include/asm/page.h | 2 +-
arch/powerpc/include/asm/pci-bridge.h | 7 +-
arch/powerpc/include/asm/pci.h | 1 -
arch/powerpc/include/asm/pgtable.h | 6 -
arch/powerpc/include/asm/pnv-pci.h | 1 +
arch/powerpc/include/asm/processor.h | 9 +
arch/powerpc/include/asm/reg_8xx.h | 14 ++
arch/powerpc/include/asm/thread_info.h | 18 ++
arch/powerpc/include/asm/uaccess.h | 88 +++++--
arch/powerpc/include/asm/vdso_datapage.h | 14 +-
arch/powerpc/include/asm/xive.h | 92 +++----
arch/powerpc/kernel/Makefile | 3 +-
arch/powerpc/kernel/asm-offsets.c | 11 +-
arch/powerpc/kernel/dt_cpu_ftrs.c | 13 +-
arch/powerpc/kernel/eeh.c | 32 +--
arch/powerpc/kernel/eeh_cache.c | 10 +-
arch/powerpc/kernel/eeh_driver.c | 6 -
arch/powerpc/kernel/eeh_sysfs.c | 22 +-
arch/powerpc/kernel/entry_32.S | 32 ++-
arch/powerpc/kernel/entry_64.S | 18 +-
arch/powerpc/kernel/exceptions-64s.S | 32 ++-
arch/powerpc/kernel/fpu.S | 3 +
arch/powerpc/kernel/head_32.S | 62 +++--
arch/powerpc/kernel/head_32.h | 180 ++++++++++++--
arch/powerpc/kernel/head_40x.S | 2 +
arch/powerpc/kernel/head_8xx.S | 189 +++++++--------
arch/powerpc/kernel/head_booke.h | 2 +
arch/powerpc/kernel/head_fsl_booke.S | 1 +
arch/powerpc/kernel/hw_breakpoint.c | 15 +-
arch/powerpc/kernel/idle.c | 25 ++
arch/powerpc/kernel/idle_book3s.S | 20 ++
arch/powerpc/kernel/idle_power4.S | 83 -------
arch/powerpc/kernel/irq.c | 22 ++
arch/powerpc/kernel/pci-common.c | 46 +---
arch/powerpc/kernel/pci-hotplug.c | 1 -
arch/powerpc/kernel/pci_dn.c | 47 ++--
arch/powerpc/kernel/pci_of_scan.c | 1 -
arch/powerpc/kernel/process.c | 69 +++---
arch/powerpc/kernel/setup.h | 2 +-
arch/powerpc/kernel/setup_32.c | 17 +-
arch/powerpc/kernel/setup_64.c | 2 +-
arch/powerpc/kernel/traps.c | 9 +
arch/powerpc/kernel/vdso.c | 5 -
arch/powerpc/kernel/vdso32/Makefile | 4 +-
arch/powerpc/kernel/vdso32/cacheflush.S | 32 ++-
arch/powerpc/kernel/vdso32/datapage.S | 31 +--
arch/powerpc/kernel/vdso32/getcpu.S | 23 +-
arch/powerpc/kernel/vdso32/gettimeofday.S | 119 +++++++---
arch/powerpc/kernel/vdso32/vdso32.lds.S | 2 +-
arch/powerpc/kernel/vector.S | 3 +
arch/powerpc/kernel/vmlinux.lds.S | 2 +-
arch/powerpc/kvm/book3s_64_mmu_radix.c | 6 +-
arch/powerpc/kvm/book3s_hv_rmhandlers.S | 2 +
arch/powerpc/kvm/book3s_xive.c | 2 +-
arch/powerpc/mm/book3s32/hash_low.S | 46 ++--
arch/powerpc/mm/book3s32/mmu.c | 9 +-
arch/powerpc/mm/book3s64/hash_utils.c | 11 +-
arch/powerpc/mm/book3s64/radix_pgtable.c | 6 +-
arch/powerpc/mm/book3s64/radix_tlb.c | 3 +
arch/powerpc/mm/fault.c | 11 +-
arch/powerpc/mm/kasan/kasan_init_32.c | 89 ++++---
arch/powerpc/mm/mem.c | 4 +
arch/powerpc/mm/mmu_decl.h | 6 +
arch/powerpc/mm/nohash/8xx.c | 13 +-
arch/powerpc/mm/pgtable_32.c | 1 +
arch/powerpc/mm/ptdump/ptdump.c | 6 +-
arch/powerpc/oprofile/backtrace.c | 14 +-
arch/powerpc/perf/8xx-pmu.c | 12 +-
arch/powerpc/perf/callchain.c | 20 +-
arch/powerpc/perf/core-book3s.c | 8 +-
arch/powerpc/platforms/512x/mpc512x_lpbfifo.c | 6 +-
arch/powerpc/platforms/83xx/km83xx.c | 2 +-
arch/powerpc/platforms/85xx/smp.c | 9 +
arch/powerpc/platforms/85xx/twr_p102x.c | 5 +-
arch/powerpc/platforms/Kconfig | 4 +
arch/powerpc/platforms/Kconfig.cputype | 8 +
arch/powerpc/platforms/maple/setup.c | 2 +-
arch/powerpc/platforms/powernv/opal.c | 144 +++++------
arch/powerpc/platforms/powernv/pci-ioda.c | 244 ++++++++++++++-----
arch/powerpc/platforms/powernv/pci.c | 71 ++----
arch/powerpc/platforms/powernv/pci.h | 3 -
arch/powerpc/platforms/powernv/setup.c | 4 +
arch/powerpc/platforms/pseries/Kconfig | 1 -
arch/powerpc/platforms/pseries/firmware.c | 10 +-
arch/powerpc/platforms/pseries/hotplug-memory.c | 4 +-
arch/powerpc/platforms/pseries/iommu.c | 64 ++---
arch/powerpc/platforms/pseries/lparcfg.c | 4 +-
arch/powerpc/platforms/pseries/papr_scm.c | 8 +-
arch/powerpc/platforms/pseries/pci.c | 4 +-
arch/powerpc/platforms/pseries/vio.c | 2 +
arch/powerpc/sysdev/fsl_pci.c | 10 +-
arch/powerpc/sysdev/mpic.c | 4 +-
arch/powerpc/tools/relocs_check.sh | 20 +-
arch/powerpc/xmon/dis-asm.h | 4 +-
arch/powerpc/xmon/xmon.c | 20 +-
drivers/macintosh/Kconfig | 6 +-
drivers/misc/ocxl/Kconfig | 1 +
drivers/pci/hotplug/pnv_php.c | 82 ++++---
tools/testing/selftests/powerpc/eeh/eeh-functions.sh | 10 +-
tools/testing/selftests/powerpc/mm/.gitignore | 1 +
tools/testing/selftests/powerpc/mm/Makefile | 3 +-
tools/testing/selftests/powerpc/mm/bad_accesses.c | 171 +++++++++++++
tools/testing/selftests/powerpc/ptrace/ptrace-hwbreak.c | 5 +-
141 files changed, 2310 insertions(+), 1121 deletions(-)
create mode 100644 Documentation/powerpc/imc.rst
create mode 100644 Documentation/powerpc/papr_hcalls.rst
delete mode 100644 arch/powerpc/kernel/idle_power4.S
create mode 100644 tools/testing/selftests/powerpc/mm/bad_accesses.c
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