Get rid of the legacy IRQ domain and hardcoded IRQ base, since all the
Ingenic drivers and platform code have been updated to use devicetree.
This also fixes the kernel being flooded with messages like:
irq: interrupt-controller@10001000 didn't like hwirq-0x0 to VIRQ8 mapping (rc=-19)
Fixes: 8bc7464b51 ("irqchip: ingenic: Alloc generic chips from IRQ domain").
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: H. Nikolaus Schaller <hns@goldelico.com>
Tested-by: 周琰杰 (Zhou Yanjie) <zhouyanjie@wanyeetech.com>
Acked-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20200113163329.34282-2-paul@crapouillou.net
"IRQ_TIMER", used in the arch/riscv CSR header file, is a sufficiently
generic macro name that it's used by several source files across the
Linux code base. Some of these other files ultimately include the
arch/riscv CSR include file, causing collisions. Fix by prefixing the
RISC-V csr.h IRQ_ macro names with an RV_ prefix.
Fixes: a4c3733d32 ("riscv: abstract out CSR names for supervisor vs machine mode")
Reported-by: Olof Johansson <olof@lixom.net>
Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
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Merge tag 'pci-v5.5-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI updates from Bjorn Helgaas:
"Enumeration:
- Warn if a host bridge has no NUMA info (Yunsheng Lin)
- Add PCI_STD_NUM_BARS for the number of standard BARs (Denis
Efremov)
Resource management:
- Fix boot-time Embedded Controller GPE storm caused by incorrect
resource assignment after ACPI Bus Check Notification (Mika
Westerberg)
- Protect pci_reassign_bridge_resources() against concurrent
addition/removal (Benjamin Herrenschmidt)
- Fix bridge dma_ranges resource list cleanup (Rob Herring)
- Add "pci=hpmmiosize" and "pci=hpmmioprefsize" parameters to control
the MMIO and prefetchable MMIO window sizes of hotplug bridges
independently (Nicholas Johnson)
- Fix MMIO/MMIO_PREF window assignment that assigned more space than
desired (Nicholas Johnson)
- Only enforce bus numbers from bridge EA if the bridge has EA
devices downstream (Subbaraya Sundeep)
- Consolidate DT "dma-ranges" parsing and convert all host drivers to
use shared parsing (Rob Herring)
Error reporting:
- Restore AER capability after resume (Mayurkumar Patel)
- Add PoisonTLPBlocked AER counter (Rajat Jain)
- Use for_each_set_bit() to simplify AER code (Andy Shevchenko)
- Fix AER kernel-doc (Andy Shevchenko)
- Add "pcie_ports=dpc-native" parameter to allow native use of DPC
even if platform didn't grant control over AER (Olof Johansson)
Hotplug:
- Avoid returning prematurely from sysfs requests to enable or
disable a PCIe hotplug slot (Lukas Wunner)
- Don't disable interrupts twice when suspending hotplug ports (Mika
Westerberg)
- Fix deadlocks when PCIe ports are hot-removed while suspended (Mika
Westerberg)
Power management:
- Remove unnecessary ASPM locking (Bjorn Helgaas)
- Add support for disabling L1 PM Substates (Heiner Kallweit)
- Allow re-enabling Clock PM after it has been disabled (Heiner
Kallweit)
- Add sysfs attributes for controlling ASPM link states (Heiner
Kallweit)
- Remove CONFIG_PCIEASPM_DEBUG, including "link_state" and "clk_ctl"
sysfs files (Heiner Kallweit)
- Avoid AMD FCH XHCI USB PME# from D0 defect that prevents wakeup on
USB 2.0 or 1.1 connect events (Kai-Heng Feng)
- Move power state check out of pci_msi_supported() (Bjorn Helgaas)
- Fix incorrect MSI-X masking on resume and revert related nvme quirk
for Kingston NVME SSD running FW E8FK11.T (Jian-Hong Pan)
- Always return devices to D0 when thawing to fix hibernation with
drivers like mlx4 that used legacy power management (previously we
only did it for drivers with new power management ops) (Dexuan Cui)
- Clear PCIe PME Status even for legacy power management (Bjorn
Helgaas)
- Fix PCI PM documentation errors (Bjorn Helgaas)
- Use dev_printk() for more power management messages (Bjorn Helgaas)
- Apply D2 delay as milliseconds, not microseconds (Bjorn Helgaas)
- Convert xen-platform from legacy to generic power management (Bjorn
Helgaas)
- Removed unused .resume_early() and .suspend_late() legacy power
management hooks (Bjorn Helgaas)
- Rearrange power management code for clarity (Rafael J. Wysocki)
- Decode power states more clearly ("4" or "D4" really refers to
"D3cold") (Bjorn Helgaas)
- Notice when reading PM Control register returns an error (~0)
instead of interpreting it as being in D3hot (Bjorn Helgaas)
- Add missing link delays required by the PCIe spec (Mika Westerberg)
Virtualization:
- Move pci_prg_resp_pasid_required() to CONFIG_PCI_PRI (Bjorn
Helgaas)
- Allow VFs to use PRI (the PF PRI is shared by the VFs, but the code
previously didn't recognize that) (Kuppuswamy Sathyanarayanan)
- Allow VFs to use PASID (the PF PASID capability is shared by the
VFs, but the code previously didn't recognize that) (Kuppuswamy
Sathyanarayanan)
- Disconnect PF and VF ATS enablement, since ATS in PFs and
associated VFs can be enabled independently (Kuppuswamy
Sathyanarayanan)
- Cache PRI and PASID capability offsets (Kuppuswamy Sathyanarayanan)
- Cache the PRI PRG Response PASID Required bit (Bjorn Helgaas)
- Consolidate ATS declarations in linux/pci-ats.h (Krzysztof
Wilczynski)
- Remove unused PRI and PASID stubs (Bjorn Helgaas)
- Removed unnecessary EXPORT_SYMBOL_GPL() from ATS, PRI, and PASID
interfaces that are only used by built-in IOMMU drivers (Bjorn
Helgaas)
- Hide PRI and PASID state restoration functions used only inside the
PCI core (Bjorn Helgaas)
- Add a DMA alias quirk for the Intel VCA NTB (Slawomir Pawlowski)
- Serialize sysfs sriov_numvfs reads vs writes (Pierre Crégut)
- Update Cavium ACS quirk for ThunderX2 and ThunderX3 (George
Cherian)
- Fix the UPDCR register address in the Intel ACS quirk (Steffen
Liebergeld)
- Unify ACS quirk implementations (Bjorn Helgaas)
Amlogic Meson host bridge driver:
- Fix meson PERST# GPIO polarity problem (Remi Pommarel)
- Add DT bindings for Amlogic Meson G12A (Neil Armstrong)
- Fix meson clock names to match DT bindings (Neil Armstrong)
- Add meson support for Amlogic G12A SoC with separate shared PHY
(Neil Armstrong)
- Add meson extended PCIe PHY functions for Amlogic G12A USB3+PCIe
combo PHY (Neil Armstrong)
- Add arm64 DT for Amlogic G12A PCIe controller node (Neil Armstrong)
- Add commented-out description of VIM3 USB3/PCIe mux in arm64 DT
(Neil Armstrong)
Broadcom iProc host bridge driver:
- Invalidate iProc PAXB address mapping before programming it
(Abhishek Shah)
- Fix iproc-msi and mvebu __iomem annotations (Ben Dooks)
Cadence host bridge driver:
- Refactor Cadence PCIe host controller to use as a library for both
host and endpoint (Tom Joseph)
Freescale Layerscape host bridge driver:
- Add layerscape LS1028a support (Xiaowei Bao)
Intel VMD host bridge driver:
- Add VMD bus 224-255 restriction decode (Jon Derrick)
- Add VMD 8086:9A0B device ID (Jon Derrick)
- Remove Keith from VMD maintainer list (Keith Busch)
Marvell ARMADA 3700 / Aardvark host bridge driver:
- Use LTSSM state to build link training flag since Aardvark doesn't
implement the Link Training bit (Remi Pommarel)
- Delay before training Aardvark link in case PERST# was asserted
before the driver probe (Remi Pommarel)
- Fix Aardvark issues with Root Control reads and writes (Remi
Pommarel)
- Don't rely on jiffies in Aardvark config access path since
interrupts may be disabled (Remi Pommarel)
- Fix Aardvark big-endian support (Grzegorz Jaszczyk)
Marvell ARMADA 370 / XP host bridge driver:
- Make mvebu_pci_bridge_emul_ops static (Ben Dooks)
Microsoft Hyper-V host bridge driver:
- Add hibernation support for Hyper-V virtual PCI devices (Dexuan
Cui)
- Track Hyper-V pci_protocol_version per-hbus, not globally (Dexuan
Cui)
- Avoid kmemleak false positive on hv hbus buffer (Dexuan Cui)
Mobiveil host bridge driver:
- Change mobiveil csr_read()/write() function names that conflict
with riscv arch functions (Kefeng Wang)
NVIDIA Tegra host bridge driver:
- Fix Tegra CLKREQ dependency programming (Vidya Sagar)
Renesas R-Car host bridge driver:
- Remove unnecessary header include from rcar (Andrew Murray)
- Tighten register index checking for rcar inbound range programming
(Marek Vasut)
- Fix rcar inbound range alignment calculation to improve packing of
multiple entries (Marek Vasut)
- Update rcar MACCTLR setting to match documentation (Yoshihiro
Shimoda)
- Clear bit 0 of MACCTLR before PCIETCTLR.CFINIT per manual
(Yoshihiro Shimoda)
- Add Marek Vasut and Yoshihiro Shimoda as R-Car maintainers (Simon
Horman)
Rockchip host bridge driver:
- Make rockchip 0V9 and 1V8 power regulators non-optional (Robin
Murphy)
Socionext UniPhier host bridge driver:
- Set uniphier to host (RC) mode always (Kunihiko Hayashi)
Endpoint drivers:
- Fix endpoint driver sign extension problem when shifting page
number to phys_addr_t (Alan Mikhak)
Misc:
- Add NumaChip SPDX header (Krzysztof Wilczynski)
- Replace EXTRA_CFLAGS with ccflags-y (Krzysztof Wilczynski)
- Remove unused includes (Krzysztof Wilczynski)
- Removed unused sysfs attribute groups (Ben Dooks)
- Remove PTM and ASPM dependencies on PCIEPORTBUS (Bjorn Helgaas)
- Add PCIe Link Control 2 register field definitions to replace magic
numbers in AMDGPU and Radeon CIK/SI (Bjorn Helgaas)
- Fix incorrect Link Control 2 Transmit Margin usage in AMDGPU and
Radeon CIK/SI PCIe Gen3 link training (Bjorn Helgaas)
- Use pcie_capability_read_word() instead of pci_read_config_word()
in AMDGPU and Radeon CIK/SI (Frederick Lawler)
- Remove unused pci_irq_get_node() Greg Kroah-Hartman)
- Make asm/msi.h mandatory and simplify PCI_MSI_IRQ_DOMAIN Kconfig
(Palmer Dabbelt, Michal Simek)
- Read all 64 bits of Switchtec part_event_bitmap (Logan Gunthorpe)
- Fix erroneous intel-iommu dependency on CONFIG_AMD_IOMMU (Bjorn
Helgaas)
- Fix bridge emulation big-endian support (Grzegorz Jaszczyk)
- Fix dwc find_next_bit() usage (Niklas Cassel)
- Fix pcitest.c fd leak (Hewenliang)
- Fix typos and comments (Bjorn Helgaas)
- Fix Kconfig whitespace errors (Krzysztof Kozlowski)"
* tag 'pci-v5.5-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (160 commits)
PCI: Remove PCI_MSI_IRQ_DOMAIN architecture whitelist
asm-generic: Make msi.h a mandatory include/asm header
Revert "nvme: Add quirk for Kingston NVME SSD running FW E8FK11.T"
PCI/MSI: Fix incorrect MSI-X masking on resume
PCI/MSI: Move power state check out of pci_msi_supported()
PCI/MSI: Remove unused pci_irq_get_node()
PCI: hv: Avoid a kmemleak false positive caused by the hbus buffer
PCI: hv: Change pci_protocol_version to per-hbus
PCI: hv: Add hibernation support
PCI: hv: Reorganize the code in preparation of hibernation
MAINTAINERS: Remove Keith from VMD maintainer
PCI/ASPM: Remove PCIEASPM_DEBUG Kconfig option and related code
PCI/ASPM: Add sysfs attributes for controlling ASPM link states
PCI: Fix indentation
drm/radeon: Prefer pcie_capability_read_word()
drm/radeon: Replace numbers with PCI_EXP_LNKCTL2 definitions
drm/radeon: Correct Transmit Margin masks
drm/amdgpu: Prefer pcie_capability_read_word()
PCI: uniphier: Set mode register to host mode
drm/amdgpu: Replace numbers with PCI_EXP_LNKCTL2 definitions
...
Pull irq updates from Ingo Molnar:
"Most of the IRQ subsystem changes in this cycle were irq-chip driver
updates:
- Qualcomm PDC wakeup interrupt support
- Layerscape external IRQ support
- Broadcom bcm7038 PM and wakeup support
- Ingenic driver cleanup and modernization
- GICv3 ITS preparation for GICv4.1 updates
- GICv4 fixes
There's also the series from Frederic Weisbecker that fixes memory
ordering bugs for the irq-work logic, whose primary fix is to turn
work->irq_work.flags into an atomic variable and then convert the
complex (and buggy) atomic_cmpxchg() loop in irq_work_claim() into a
much simpler atomic_fetch_or() call.
There are also various smaller cleanups"
* 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (44 commits)
pinctrl/sdm845: Add PDC wakeup interrupt map for GPIOs
pinctrl/msm: Setup GPIO chip in hierarchy
irqchip/qcom-pdc: Add irqchip set/get state calls
irqchip/qcom-pdc: Add irqdomain for wakeup capable GPIOs
irqchip/qcom-pdc: Do not toggle IRQ_ENABLE during mask/unmask
irqchip/qcom-pdc: Update max PDC interrupts
of/irq: Document properties for wakeup interrupt parent
genirq: Introduce irq_chip_get/set_parent_state calls
irqdomain: Add bus token DOMAIN_BUS_WAKEUP
genirq: Fix function documentation of __irq_alloc_descs()
irq_work: Fix IRQ_WORK_BUSY bit clearing
irqchip/ti-sci-inta: Use ERR_CAST inlined function instead of ERR_PTR(PTR_ERR(...))
irq_work: Slightly simplify IRQ_WORK_PENDING clearing
irq_work: Fix irq_work_claim() memory ordering
irq_work: Convert flags to atomic_t
irqchip: Ingenic: Add process for more than one irq at the same time.
irqchip: ingenic: Alloc generic chips from IRQ domain
irqchip: ingenic: Get virq number from IRQ domain
irqchip: ingenic: Error out if IRQ domain creation failed
irqchip: ingenic: Drop redundant irq_suspend / irq_resume functions
...
New features:
- SECCOMP support
- nommu support
- SBI-less system support
- M-Mode support
- TLB flush optimizations
Other improvements:
- Pass the complete RISC-V ISA string supported by the CPU cores to
userspace, rather than redacting parts of it in the kernel
- Add platform DMA IP block data to the HiFive Unleashed board DT file
- Add Makefile support for BZ2, LZ4, LZMA, LZO kernel image
compression formats, in line with other architectures
Cleanups:
- Remove unnecessary PTE_PARENT_SIZE macro
- Standardize include guard naming across arch/riscv
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Merge tag 'riscv/for-v5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V updates from Paul Walmsley:
"New features:
- SECCOMP support
- nommu support
- SBI-less system support
- M-Mode support
- TLB flush optimizations
Other improvements:
- Pass the complete RISC-V ISA string supported by the CPU cores to
userspace, rather than redacting parts of it in the kernel
- Add platform DMA IP block data to the HiFive Unleashed board DT
file
- Add Makefile support for BZ2, LZ4, LZMA, LZO kernel image
compression formats, in line with other architectures
Cleanups:
- Remove unnecessary PTE_PARENT_SIZE macro
- Standardize include guard naming across arch/riscv"
* tag 'riscv/for-v5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (22 commits)
riscv: provide a flat image loader
riscv: add nommu support
riscv: clear the instruction cache and all registers when booting
riscv: read the hart ID from mhartid on boot
riscv: provide native clint access for M-mode
riscv: dts: add support for PDMA device of HiFive Unleashed Rev A00
riscv: add support for MMIO access to the timer registers
riscv: implement remote sfence.i using IPIs
riscv: cleanup the default power off implementation
riscv: poison SBI calls for M-mode
riscv: don't allow selecting SBI based drivers for M-mode
RISC-V: Add multiple compression image format.
riscv: clean up the macro format in each header file
riscv: Use PMD_SIZE to replace PTE_PARENT_SIZE
riscv: abstract out CSR names for supervisor vs machine mode
riscv: separate MMIO functions into their own header file
riscv: enter WFI in default_power_off() if SBI does not shutdown
RISC-V: Issue a tlb page flush if possible
RISC-V: Issue a local tlbflush if possible.
RISC-V: Do not invoke SBI call if cpumask is empty
...
- Data abort report and injection
- Steal time support
- GICv4 performance improvements
- vgic ITS emulation fixes
- Simplify FWB handling
- Enable halt polling counters
- Make the emulated timer PREEMPT_RT compliant
s390:
- Small fixes and cleanups
- selftest improvements
- yield improvements
PPC:
- Add capability to tell userspace whether we can single-step the guest.
- Improve the allocation of XIVE virtual processor IDs
- Rewrite interrupt synthesis code to deliver interrupts in virtual
mode when appropriate.
- Minor cleanups and improvements.
x86:
- XSAVES support for AMD
- more accurate report of nested guest TSC to the nested hypervisor
- retpoline optimizations
- support for nested 5-level page tables
- PMU virtualization optimizations, and improved support for nested
PMU virtualization
- correct latching of INITs for nested virtualization
- IOAPIC optimization
- TSX_CTRL virtualization for more TAA happiness
- improved allocation and flushing of SEV ASIDs
- many bugfixes and cleanups
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM updates from Paolo Bonzini:
"ARM:
- data abort report and injection
- steal time support
- GICv4 performance improvements
- vgic ITS emulation fixes
- simplify FWB handling
- enable halt polling counters
- make the emulated timer PREEMPT_RT compliant
s390:
- small fixes and cleanups
- selftest improvements
- yield improvements
PPC:
- add capability to tell userspace whether we can single-step the
guest
- improve the allocation of XIVE virtual processor IDs
- rewrite interrupt synthesis code to deliver interrupts in virtual
mode when appropriate.
- minor cleanups and improvements.
x86:
- XSAVES support for AMD
- more accurate report of nested guest TSC to the nested hypervisor
- retpoline optimizations
- support for nested 5-level page tables
- PMU virtualization optimizations, and improved support for nested
PMU virtualization
- correct latching of INITs for nested virtualization
- IOAPIC optimization
- TSX_CTRL virtualization for more TAA happiness
- improved allocation and flushing of SEV ASIDs
- many bugfixes and cleanups"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (127 commits)
kvm: nVMX: Relax guest IA32_FEATURE_CONTROL constraints
KVM: x86: Grab KVM's srcu lock when setting nested state
KVM: x86: Open code shared_msr_update() in its only caller
KVM: Fix jump label out_free_* in kvm_init()
KVM: x86: Remove a spurious export of a static function
KVM: x86: create mmu/ subdirectory
KVM: nVMX: Remove unnecessary TLB flushes on L1<->L2 switches when L1 use apic-access-page
KVM: x86: remove set but not used variable 'called'
KVM: nVMX: Do not mark vmcs02->apic_access_page as dirty when unpinning
KVM: vmx: use MSR_IA32_TSX_CTRL to hard-disable TSX on guest that lack it
KVM: vmx: implement MSR_IA32_TSX_CTRL disable RTM functionality
KVM: x86: implement MSR_IA32_TSX_CTRL effect on CPUID
KVM: x86: do not modify masked bits of shared MSRs
KVM: x86: fix presentation of TSX feature in ARCH_CAPABILITIES
KVM: PPC: Book3S HV: XIVE: Fix potential page leak on error path
KVM: PPC: Book3S HV: XIVE: Free previous EQ page when setting up a new one
KVM: nVMX: Assume TLB entries of L1 and L2 are tagged differently if L0 use EPT
KVM: x86: Unexport kvm_vcpu_reload_apic_access_page()
KVM: nVMX: add CR4_LA57 bit to nested CR4_FIXED1
KVM: nVMX: Use semi-colon instead of comma for exit-handlers initialization
...
- 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.
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Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 updates from Catalin Marinas:
"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.
Summary:
- 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"
* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (93 commits)
arm64: Kconfig: add a choice for endianness
kselftest: arm64: fix spelling mistake "contiguos" -> "contiguous"
arm64: Kconfig: make CMDLINE_FORCE depend on CMDLINE
MAINTAINERS: Add arm64 selftests to the ARM64 PORT entry
arm64: kaslr: Check command line before looking for a seed
arm64: kaslr: Announce KASLR status on boot
kselftest: arm64: fake_sigreturn_misaligned_sp
kselftest: arm64: fake_sigreturn_bad_size
kselftest: arm64: fake_sigreturn_duplicated_fpsimd
kselftest: arm64: fake_sigreturn_missing_fpsimd
kselftest: arm64: fake_sigreturn_bad_size_for_magic0
kselftest: arm64: fake_sigreturn_bad_magic
kselftest: arm64: add helper get_current_context
kselftest: arm64: extend test_init functionalities
kselftest: arm64: mangle_pstate_invalid_mode_el[123][ht]
kselftest: arm64: mangle_pstate_invalid_daif_bits
kselftest: arm64: mangle_pstate_invalid_compat_toggle and common utils
kselftest: arm64: extend toplevel skeleton Makefile
drivers/perf: hisi: update the sccl_id/ccl_id for certain HiSilicon platform
arm64: mm: reserve CMA and crashkernel in ZONE_DMA32
...
Remove <linux/pci.h> and <linux/msi.h> from being included directly as part
of the include/linux/of_pci.h, and remove superfluous declaration of struct
of_phandle_args.
Move users of include <linux/of_pci.h> to include <linux/pci.h> and
<linux/msi.h> directly rather than rely on both being included transitively
through <linux/of_pci.h>.
Link: https://lore.kernel.org/r/20190903113059.2901-1-kw@linux.com
Signed-off-by: Krzysztof Wilczynski <kw@linux.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Rob Herring <robh@kernel.org>
- Allow non-ISV data aborts to be reported to userspace
- Allow injection of data aborts from userspace
- Expose stolen time to guests
- GICv4 performance improvements
- vgic ITS emulation fixes
- Simplify FWB handling
- Enable halt pool counters
- Make the emulated timer PREEMPT_RT compliant
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Merge tag 'kvmarm-5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
KVM/arm updates for Linux 5.5:
- Allow non-ISV data aborts to be reported to userspace
- Allow injection of data aborts from userspace
- Expose stolen time to guests
- GICv4 performance improvements
- vgic ITS emulation fixes
- Simplify FWB handling
- Enable halt pool counters
- Make the emulated timer PREEMPT_RT compliant
Conflicts:
include/uapi/linux/kvm.h
Add irqchip calls to set/get interrupt state from the parent interrupt
controller. When GPIOs are renabled as interrupt lines, it is desirable
to clear the interrupt state at the GIC. This avoids any unwanted
interrupt as a result of stale pending state recorded when the line was
used as a GPIO.
Signed-off-by: Maulik Shah <mkshah@codeaurora.org>
[Lina: updated commit text, rearranged code]
Signed-off-by: Lina Iyer <ilina@codeaurora.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/1573855915-9841-8-git-send-email-ilina@codeaurora.org
Introduce a new domain for wakeup capable GPIOs. The domain can be
requested using the bus token DOMAIN_BUS_WAKEUP. In the following
patches, we will specify PDC as the wakeup-parent for the TLMM GPIO
irqchip. Requesting a wakeup GPIO will setup the GPIO and the
corresponding PDC interrupt as its parent.
Co-developed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Lina Iyer <ilina@codeaurora.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/1573855915-9841-5-git-send-email-ilina@codeaurora.org
When an interrupt is to be serviced, the convention is to mask the
interrupt at the chip and unmask after servicing the interrupt. Enabling
and disabling the interrupt at the PDC irqchip causes an interrupt storm
due to the way dual edge interrupts are handled in hardware.
Skip configuring the PDC when the IRQ is masked and unmasked, instead
use the irq_enable/irq_disable callbacks to toggle the IRQ_ENABLE
register at the PDC. The PDC's IRQ_ENABLE register is only used during
the monitoring mode when the system is asleep and is not needed for
active mode detection.
Signed-off-by: Lina Iyer <ilina@codeaurora.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/1573855915-9841-4-git-send-email-ilina@codeaurora.org
Newer SoCs have increased the number of interrupts routed to the PDC
interrupt controller. Update the definition of max PDC interrupts.
Signed-off-by: Lina Iyer <ilina@codeaurora.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/1573855915-9841-3-git-send-email-ilina@codeaurora.org
A coccicheck run provided information like the following.
drivers/irqchip/irq-ti-sci-inta.c:250:9-16: WARNING: ERR_CAST can be used
with vint_desc.
Generated by: scripts/coccinelle/api/err_cast.cocci
Thus adjust the exception handling in one if branch.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>
Link: https://lore.kernel.org/r/776b7135-26af-df7d-c3a9-4339f7bf1f15@web.de
Add process for the situation that more than one irq is coming to
a single chip at the same time. The original code will only respond
to the lowest setted bit in JZ_REG_INTC_PENDING, and then exit the
interrupt dispatch function. After exiting the interrupt dispatch
function, since the second interrupt has not yet responded, the
interrupt dispatch function is again entered to process the second
interrupt. This creates additional unnecessary overhead, and the
more interrupts that occur at the same time, the more overhead is
added. The improved method in this patch is to check whether there
are still unresponsive interrupts after processing the lowest
setted bit interrupt. If there are any, the processing will be
processed according to the bit in JZ_REG_INTC_PENDING, and the
interrupt dispatch function will be exited until all processing
is completed.
Signed-off-by: Zhou Yanjie <zhouyanjie@zoho.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Paul Cercueil <paul@crapouillou.net>
Link: https://lore.kernel.org/r/1570015525-27018-6-git-send-email-zhouyanjie@zoho.com
The VLPI map is currently a mutex, and that's a bad idea as
this lock can be taken in non-preemptible contexts. Convert
it to a raw spinlock, and turn the memory allocation of the
VLPI map to be atomic.
Reported-by: Heyi Guo <guoheyi@huawei.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20191108165805.3071-12-maz@kernel.org
Obtaining the mapping ivformation for a VLPI should always be
done with the vlpi_lock for this device held. Otherwise, we
expose ourselves to races against a concurrent unmap.
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20191108165805.3071-11-maz@kernel.org
We have so far always injected/cleared VLPIs using either
INT+SYNC or CLEAR+SYNC sequences, but that's pretty wrong
for two reasons:
- SYNC only synchronises physical LPIs
- The collection ID that for the associated LPI doesn't match
the redistributor the vPE is associated with
Instead, send an {INT,CLEAR}+VSYNC for forwarded LPIs, ensuring
that the ITS synchronises against the virtual pending table.
Reported-by: Zenghui Yu <yuzenghui@huawei.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20191108165805.3071-10-maz@kernel.org
We have so far alwways invalidated VLPIs usinc an INV+SYNC
sequence, but that's pretty wrong for two reasons:
- SYNC only synchronises physical LPIs
- The collection ID that for the associated LPI doesn't match
the redistributor the vPE is associated with
Instead, send an INV+VSYNC for forwarded LPIs, ensuring that
the ITS can properly synchronise the invalidation of VLPIs.
Fixes: 015ec0386a ("irqchip/gic-v3-its: Add VLPI configuration handling")
Reported-by: Zenghui Yu <yuzenghui@huawei.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20191108165805.3071-9-maz@kernel.org
We allocate the collection mapping on device creation, but somehow
free it on the irqdomain free path, which is pretty inconsistent
and has led to bugs in the past.
Move it to the point where we teardown the device, making the
alloc/free symetric.
Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Zenghui Yu <yuzenghui@huawei.com>
Link: https://lore.kernel.org/r/20191108165805.3071-2-maz@kernel.org
Remove the sdm845 SoC specific compatible to make the driver
easily reusable across other SoC's with the same IP block.
This will reduce further churn adding any SoC specific
compatibles unless really needed.
Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Lina Iyer <ilina@codeaurora.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/20191108092824.9773-7-rnayak@codeaurora.org
The LS1021A allows inverting the polarity of six interrupt lines
IRQ[0:5] via the scfg_intpcr register, effectively allowing
IRQ_TYPE_LEVEL_LOW and IRQ_TYPE_EDGE_FALLING for those. We just need to
check the type, set the relevant bit in INTPCR accordingly, and fixup
the type argument before calling the GIC's irq_set_type.
In fact, the power-on-reset value of the INTPCR register on the LS1021A
is so that all six lines have their polarity inverted. Hence any
hardware connected to those lines is unusable without this: If the line
is indeed active low, the generic GIC code will reject an irq spec with
IRQ_TYPE_LEVEL_LOW, while if the line is active high, we must obviously
disable the polarity inversion (writing 0 to the relevant bit) before
unmasking the interrupt.
Some other Layerscape SOCs (LS1043A, LS1046A) have a similar feature,
just with a different number of external interrupt lines (and a
different POR value for the INTPCR register). This driver should be
prepared for supporting those by properly filling out the device tree
node. I have the reference manuals for all three boards, but I've only
tested the driver on an LS1021A.
Unfortunately, the Kconfig symbol ARCH_LAYERSCAPE only exists on
arm64, so do as is done for irq-ls-scfg-msi.c: introduce a new symbol
which is set when either ARCH_LAYERSCAPE or SOC_LS1021A is set.
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20191107122115.6244-3-linux@rasmusvillemoes.dk
On some specific chips like 7211 we need to leave some interrupts
untouched/forwarded to the VPU which is another agent in the system
making use of that interrupt controller hardware (goes to both ARM GIC
and VPU L1 interrupt controller). Make that possible by using the
existing brcm,int-fwd-mask property and take necessary actions to avoid
masking that interrupt as well as not allowing Linux to map them.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20191024201415.23454-6-f.fainelli@gmail.com
If the 'brcm,irq-can-wake' property is specified, make sure we also
enable the corresponding parent interrupt we are attached to.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20191024201415.23454-4-f.fainelli@gmail.com
The current L1 controller does not mask any interrupts when dropping
into suspend. This mean we can receive unexpected wake up sources.
Modified the BCM7038 L1 controller to mask the all non-wake interrupts
before dropping into suspend.
Signed-off-by: Justin Chen <justinpopo6@gmail.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20191024201415.23454-2-f.fainelli@gmail.com
The its_cmd_block struct can either have u64 or __le64
data in it, so make a anonymous union to remove the
sparse warnings when converting to/from these.
Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20191017112955.15853-1-ben.dooks@codethink.co.uk
Many of the privileged CSRs exist in a supervisor and machine version
that are used very similarly. Provide versions of the CSR names and
fields that map to either the S-mode or M-mode variant depending on
a new CONFIG_RISCV_M_MODE kconfig symbol.
Contains contributions from Damien Le Moal <Damien.LeMoal@wdc.com>
and Paul Walmsley <paul.walmsley@sifive.com>.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Thomas Gleixner <tglx@linutronix.de> # for drivers/clocksource, drivers/irqchip
[paul.walmsley@sifive.com: updated to apply]
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
When the VHE code was reworked, a lot of the vgic stuff was moved around,
but the GICv4 residency code did stay untouched, meaning that we come
in and out of residency on each flush/sync, which is obviously suboptimal.
To address this, let's move things around a bit:
- Residency entry (flush) moves to vcpu_load
- Residency exit (sync) moves to vcpu_put
- On blocking (entry to WFI), we "put"
- On unblocking (exit from WFI), we "load"
Because these can nest (load/block/put/load/unblock/put, for example),
we now have per-VPE tracking of the residency state.
Additionally, vgic_v4_put gains a "need doorbell" parameter, which only
gets set to true when blocking because of a WFI. This allows a finer
control of the doorbell, which now also gets disabled as soon as
it gets signaled.
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20191027144234.8395-2-maz@kernel.org
- Sifive PLIC: force driver to skip non-relevant contexts
- GICv4: Don't send VMOVP commands to ITSs that don't have
this vPE mapped
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Merge tag 'irqchip-fixes-5.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/urgent
Pull the second lot of irqchip updates for 5.4 from Marc Zyngier:
- Sifive PLIC: force driver to skip non-relevant contexts
- GICv4: Don't send VMOVP commands to ITSs that don't have
this vPE mapped
Modify plic_init() to skip .dts interrupt contexts other
than supervisor external interrupt.
The .dts entry for plic may specify multiple interrupt contexts.
For example, it may assign two entries IRQ_M_EXT and IRQ_S_EXT,
in that order, to the same interrupt controller. This patch
modifies plic_init() to skip the IRQ_M_EXT context since
IRQ_S_EXT is currently the only supported context.
If IRQ_M_EXT is not skipped, plic_init() will report "handler
already present for context" when it comes across the IRQ_S_EXT
context in the next iteration of its loop.
Without this patch, .dts would have to be edited to replace the
value of IRQ_M_EXT with -1 for it to be skipped.
Signed-off-by: Alan Mikhak <alan.mikhak@sifive.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Acked-by: Paul Walmsley <paul.walmsley@sifive.com> # arch/riscv
Link: https://lkml.kernel.org/r/1571933503-21504-1-git-send-email-alan.mikhak@sifive.com
On a system without Single VMOVP support (say GITS_TYPER.VMOVP == 0),
we will map vPEs only on ITSs that will actually control interrupts
for the given VM. And when moving a vPE, the VMOVP command will be
issued only for those ITSs.
But when issuing VMOVPs we seemed fail to present the exact ITSList
to ITSs who are actually included in the synchronization operation.
The its_list_map we're currently using includes all ITSs in the system,
even though some of them don't have the corresponding vPE mapping at all.
Introduce get_its_list() to get the per-VM its_list_map, to indicate
which ITSs have vPE mappings for the given VM, and use this map as
the expected ITSList when building VMOVP. This is hopefully a performance
gain not to do some synchronization with those unsuspecting ITSs.
And initialize the whole command descriptor to zero at beginning, since
the seq_num and its_list should be RES0 when GITS_TYPER.VMOVP == 1.
Signed-off-by: Zenghui Yu <yuzenghui@huawei.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/1571802386-2680-1-git-send-email-yuzenghui@huawei.com
The GICv3 architecture specification is incredibly misleading when it
comes to PMR and the requirement for a DSB. It turns out that this DSB
is only required if the CPU interface sends an Upstream Control
message to the redistributor in order to update the RD's view of PMR.
This message is only sent when ICC_CTLR_EL1.PMHE is set, which isn't
the case in Linux. It can still be set from EL3, so some special care
is required. But the upshot is that in the (hopefuly large) majority
of the cases, we can drop the DSB altogether.
This relies on a new static key being set if the boot CPU has PMHE
set. The drawback is that this static key has to be exported to
modules.
Cc: Will Deacon <will@kernel.org>
Cc: James Morse <james.morse@arm.com>
Cc: Julien Thierry <julien.thierry.kdev@gmail.com>
Cc: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
- Add retrigger support to Amazon's al-fic driver
- Add SAM9X60 support to Atmel's AIC5 irqchip
- Fix GICv3 maximum interrupt calculation
- Convert SiFive's PLIC to the fasteoi IRQ flow
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Merge tag 'irqchip-fixes-5.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/urgent
Pull irqchip fixes from Marc Zyngier:
- Add retrigger support to Amazon's al-fic driver
- Add SAM9X60 support to Atmel's AIC5 irqchip
- Fix GICv3 maximum interrupt calculation
- Convert SiFive's PLIC to the fasteoi IRQ flow
- boot_mem_map is removed, providing a nice cleanup made possible by the
recent removal of bootmem.
- Some fixes to atomics, in general providing compiler barriers for
smp_mb__{before,after}_atomic plus fixes specific to Loongson CPUs or
MIPS32 systems using cmpxchg64().
- Conversion to the new generic VDSO infrastructure courtesy of Vincenzo
Frascino.
- Removal of undefined behavior in set_io_port_base(), fixing the
behavior of some MIPS kernel configurations when built with recent
clang versions.
- Initial MIPS32 huge page support, functional on at least Ingenic SoCs.
- pte_special() is now supported for some configurations, allowing among
other things generic fast GUP to be used.
- Miscellaneous fixes & cleanups.
And platform specific changes:
- Major improvements to Ingenic SoC support from Paul Cercueil, mostly
enabled by the inclusion of the new TCU (timer-counter unit) drivers
he's spent a very patient year or so working on. Plus some fixes for
X1000 SoCs from Zhou Yanjie.
- Netgear R6200 v1 systems are now supported by the bcm47xx platform.
- DT updates for BMIPS, Lantiq & Microsemi Ocelot systems.
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Merge tag 'mips_5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux
Pull MIPS updates from Paul Burton:
"Main MIPS changes:
- boot_mem_map is removed, providing a nice cleanup made possible by
the recent removal of bootmem.
- Some fixes to atomics, in general providing compiler barriers for
smp_mb__{before,after}_atomic plus fixes specific to Loongson CPUs
or MIPS32 systems using cmpxchg64().
- Conversion to the new generic VDSO infrastructure courtesy of
Vincenzo Frascino.
- Removal of undefined behavior in set_io_port_base(), fixing the
behavior of some MIPS kernel configurations when built with recent
clang versions.
- Initial MIPS32 huge page support, functional on at least Ingenic
SoCs.
- pte_special() is now supported for some configurations, allowing
among other things generic fast GUP to be used.
- Miscellaneous fixes & cleanups.
And platform specific changes:
- Major improvements to Ingenic SoC support from Paul Cercueil,
mostly enabled by the inclusion of the new TCU (timer-counter unit)
drivers he's spent a very patient year or so working on. Plus some
fixes for X1000 SoCs from Zhou Yanjie.
- Netgear R6200 v1 systems are now supported by the bcm47xx platform.
- DT updates for BMIPS, Lantiq & Microsemi Ocelot systems"
* tag 'mips_5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (89 commits)
MIPS: Detect bad _PFN_SHIFT values
MIPS: Disable pte_special() for MIPS32 with RiXi
MIPS: ralink: deactivate PCI support for SOC_MT7621
mips: compat: vdso: Use legacy syscalls as fallback
MIPS: Drop Loongson _CACHE_* definitions
MIPS: tlbex: Remove cpu_has_local_ebase
MIPS: tlbex: Simplify r3k check
MIPS: Select R3k-style TLB in Kconfig
MIPS: PCI: refactor ioc3 special handling
mips: remove ioremap_cachable
mips/atomic: Fix smp_mb__{before,after}_atomic()
mips/atomic: Fix loongson_llsc_mb() wreckage
mips/atomic: Fix cmpxchg64 barriers
MIPS: Octeon: remove duplicated include from dma-octeon.c
firmware: bcm47xx_nvram: Allow COMPILE_TEST
firmware: bcm47xx_nvram: Correct size_t printf format
MIPS: Treat Loongson Extensions as ASEs
MIPS: Remove dev_err() usage after platform_get_irq()
MIPS: dts: mscc: describe the PTP ready interrupt
MIPS: dts: mscc: describe the PTP register range
...
The SiFive PLIC interrupt controller seems to have all the HW
features to support the fasteoi flow, but the driver seems to be
stuck in a distant past. Bring it into the 21st century.
Signed-off-by: Marc Zyngier <maz@kernel.org>
Tested-by: Palmer Dabbelt <palmer@sifive.com> (QEMU Boot)
Tested-by: Darius Rad <darius@bluespec.com> (on 2 HW PLIC implementations)
Tested-by: Paul Walmsley <paul.walmsley@sifive.com> (HiFive Unleashed)
Reviewed-by: Palmer Dabbelt <palmer@sifive.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/8636gxskmj.wl-maz@kernel.org
As per GIC spec, ITLinesNumber indicates the maximum SPI INTID that
the GIC implementation supports. And the maximum SPI INTID an
implementation might support is 1019 (field value 11111).
max(GICD_TYPER_SPIS(...), 1020) is not what we actually want for
GIC_LINE_NR. Fix it to min(GICD_TYPER_SPIS(...), 1020).
Signed-off-by: Zenghui Yu <yuzenghui@huawei.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/1568789850-14080-1-git-send-email-yuzenghui@huawei.com
