Commit Graph

2350 Commits

Author SHA1 Message Date
Linus Torvalds ac8c6edd20 A single EFI fix from Lukas:
- handle boolean device properties imported from Apple firmware
   correctly.
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Merge tag 'efi-urgent-for-v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull EFI fix from Borislav Petkov:
 "A single fix from Lukas: handle boolean device properties imported
  from Apple firmware correctly"

* tag 'efi-urgent-for-v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  efi/apple-properties: Reinstate support for boolean properties
2021-01-31 11:57:37 -08:00
Randy Dunlap 82c082784e firmware: imx: select SOC_BUS to fix firmware build
Fix build error in firmware/imx/ selecting SOC_BUS.

riscv32-linux-ld: drivers/firmware/imx/imx-scu-soc.o: in function `.L9':
imx-scu-soc.c:(.text+0x1b0): undefined reference to `soc_device_register'

Fixes: edbee095fa ("firmware: imx: add SCU firmware driver support")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reported-by: kernel test robot <lkp@intel.com>
Cc: Atish Patra <atish.patra@wdc.com>
Cc: Palmer Dabbelt <palmerdabbelt@google.com>
Cc: Ard Biesheuvel <ardb@kernel.org>
Cc: Anson Huang <Anson.Huang@nxp.com>
Cc: Daniel Baluta <daniel.baluta@nxp.com>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-01-18 15:49:07 +08:00
Lukas Wunner 355845b738 efi/apple-properties: Reinstate support for boolean properties
Since commit 4466bf8282 ("efi/apple-properties: use
PROPERTY_ENTRY_U8_ARRAY_LEN"), my MacBook Pro issues a -ENODATA error
when trying to assign EFI properties to the discrete GPU:

pci 0000:01:00.0: assigning 56 device properties
pci 0000:01:00.0: error -61 assigning properties

That's because some of the properties have no value.  They're booleans
whose presence can be checked by drivers, e.g. "use-backlight-blanking".

Commit 6e98503dba ("efi/apple-properties: Remove redundant attribute
initialization from unmarshal_key_value_pairs()") employed a trick to
store such booleans as u8 arrays (which is the data type used for all
other EFI properties on Macs):  It cleared the property_entry's
"is_array" flag, thereby denoting that the value is stored inline in the
property_entry.

Commit 4466bf8282 erroneously removed that trick.  It was probably a
little fragile to begin with.

Reinstate support for boolean properties by explicitly invoking the
PROPERTY_ENTRY_BOOL() initializer for properties with zero-length value.

Fixes: 4466bf8282 ("efi/apple-properties: use PROPERTY_ENTRY_U8_ARRAY_LEN")
Cc: <stable@vger.kernel.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Link: https://lore.kernel.org/r/be958bda75331a011d53c696d1deec8dccd06fd2.1609388549.git.lukas@wunner.de
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
2020-12-31 10:28:53 +01:00
Linus Torvalds 4a1106afee EFI updates collected by Ard Biesheuvel:
- Don't move BSS section around pointlessly in the x86 decompressor
  - Refactor helper for discovering the EFI secure boot mode
  - Wire up EFI secure boot to IMA for arm64
  - Some fixes for the capsule loader
  - Expose the RT_PROP table via the EFI test module
  - Relax DT and kernel placement restrictions on ARM
 
 + followup fixes:
 
  - fix the build breakage on IA64 caused by recent capsule loader changes
  - suppress a type mismatch build warning in the expansion of
        EFI_PHYS_ALIGN on ARM
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Merge tag 'efi_updates_for_v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull EFI updates from Borislav Petkov:
 "These got delayed due to a last minute ia64 build issue which got
  fixed in the meantime.

  EFI updates collected by Ard Biesheuvel:

   - Don't move BSS section around pointlessly in the x86 decompressor

   - Refactor helper for discovering the EFI secure boot mode

   - Wire up EFI secure boot to IMA for arm64

   - Some fixes for the capsule loader

   - Expose the RT_PROP table via the EFI test module

   - Relax DT and kernel placement restrictions on ARM

  with a few followup fixes:

   - fix the build breakage on IA64 caused by recent capsule loader
     changes

   - suppress a type mismatch build warning in the expansion of
     EFI_PHYS_ALIGN on ARM"

* tag 'efi_updates_for_v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  efi: arm: force use of unsigned type for EFI_PHYS_ALIGN
  efi: ia64: disable the capsule loader
  efi: stub: get rid of efi_get_max_fdt_addr()
  efi/efi_test: read RuntimeServicesSupported
  efi: arm: reduce minimum alignment of uncompressed kernel
  efi: capsule: clean scatter-gather entries from the D-cache
  efi: capsule: use atomic kmap for transient sglist mappings
  efi: x86/xen: switch to efi_get_secureboot_mode helper
  arm64/ima: add ima_arch support
  ima: generalize x86/EFI arch glue for other EFI architectures
  efi: generalize efi_get_secureboot
  efi/libstub: EFI_GENERIC_STUB_INITRD_CMDLINE_LOADER should not default to yes
  efi/x86: Only copy the compressed kernel image in efi_relocate_kernel()
  efi/libstub/x86: simplify efi_is_native()
2020-12-24 12:40:07 -08:00
Linus Torvalds 6a447b0e31 ARM:
* PSCI relay at EL2 when "protected KVM" is enabled
 * New exception injection code
 * Simplification of AArch32 system register handling
 * Fix PMU accesses when no PMU is enabled
 * Expose CSV3 on non-Meltdown hosts
 * Cache hierarchy discovery fixes
 * PV steal-time cleanups
 * Allow function pointers at EL2
 * Various host EL2 entry cleanups
 * Simplification of the EL2 vector allocation
 
 s390:
 * memcg accouting for s390 specific parts of kvm and gmap
 * selftest for diag318
 * new kvm_stat for when async_pf falls back to sync
 
 x86:
 * Tracepoints for the new pagetable code from 5.10
 * Catch VFIO and KVM irqfd events before userspace
 * Reporting dirty pages to userspace with a ring buffer
 * SEV-ES host support
 * Nested VMX support for wait-for-SIPI activity state
 * New feature flag (AVX512 FP16)
 * New system ioctl to report Hyper-V-compatible paravirtualization features
 
 Generic:
 * Selftest improvements
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull KVM updates from Paolo Bonzini:
 "Much x86 work was pushed out to 5.12, but ARM more than made up for it.

  ARM:
   - PSCI relay at EL2 when "protected KVM" is enabled
   - New exception injection code
   - Simplification of AArch32 system register handling
   - Fix PMU accesses when no PMU is enabled
   - Expose CSV3 on non-Meltdown hosts
   - Cache hierarchy discovery fixes
   - PV steal-time cleanups
   - Allow function pointers at EL2
   - Various host EL2 entry cleanups
   - Simplification of the EL2 vector allocation

  s390:
   - memcg accouting for s390 specific parts of kvm and gmap
   - selftest for diag318
   - new kvm_stat for when async_pf falls back to sync

  x86:
   - Tracepoints for the new pagetable code from 5.10
   - Catch VFIO and KVM irqfd events before userspace
   - Reporting dirty pages to userspace with a ring buffer
   - SEV-ES host support
   - Nested VMX support for wait-for-SIPI activity state
   - New feature flag (AVX512 FP16)
   - New system ioctl to report Hyper-V-compatible paravirtualization features

  Generic:
   - Selftest improvements"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (171 commits)
  KVM: SVM: fix 32-bit compilation
  KVM: SVM: Add AP_JUMP_TABLE support in prep for AP booting
  KVM: SVM: Provide support to launch and run an SEV-ES guest
  KVM: SVM: Provide an updated VMRUN invocation for SEV-ES guests
  KVM: SVM: Provide support for SEV-ES vCPU loading
  KVM: SVM: Provide support for SEV-ES vCPU creation/loading
  KVM: SVM: Update ASID allocation to support SEV-ES guests
  KVM: SVM: Set the encryption mask for the SVM host save area
  KVM: SVM: Add NMI support for an SEV-ES guest
  KVM: SVM: Guest FPU state save/restore not needed for SEV-ES guest
  KVM: SVM: Do not report support for SMM for an SEV-ES guest
  KVM: x86: Update __get_sregs() / __set_sregs() to support SEV-ES
  KVM: SVM: Add support for CR8 write traps for an SEV-ES guest
  KVM: SVM: Add support for CR4 write traps for an SEV-ES guest
  KVM: SVM: Add support for CR0 write traps for an SEV-ES guest
  KVM: SVM: Add support for EFER write traps for an SEV-ES guest
  KVM: SVM: Support string IO operations for an SEV-ES guest
  KVM: SVM: Support MMIO for an SEV-ES guest
  KVM: SVM: Create trace events for VMGEXIT MSR protocol processing
  KVM: SVM: Create trace events for VMGEXIT processing
  ...
2020-12-20 10:44:05 -08:00
Linus Torvalds 48c1c40ab4 ARM: SoC drivers for v5.11
There are a couple of subsystems maintained by other people that
 merge their drivers through the SoC tree, those changes include:
 
  - The SCMI firmware framework gains support for sensor notifications
    and for controlling voltage domains.
 
  - A large update for the Tegra memory controller driver, integrating
    it better with the interconnect framework
 
  - The memory controller subsystem gains support for Mediatek MT8192
 
  - The reset controller framework gains support for sharing pulsed
    resets
 
 For Soc specific drivers in drivers/soc, the main changes are
 
  - The Allwinner/sunxi MBUS gets a rework for the way it handles
    dma_map_ops and offsets between physical and dma address spaces.
 
  - An errata fix plus some cleanups for Freescale Layerscape SoCs
 
  - A cleanup for renesas drivers regarding MMIO accesses.
 
  - New SoC specific drivers for Mediatek MT8192 and MT8183 power domains
 
  - New SoC specific drivers for Aspeed AST2600 LPC bus control
    and SoC identification.
 
  - Core Power Domain support for Qualcomm MSM8916, MSM8939, SDM660
    and SDX55.
 
  - A rework of the TI AM33xx 'genpd' power domain support to use
    information from DT instead of platform data
 
  - Support for TI AM64x SoCs
 
  - Allow building some Amlogic drivers as modules instead of built-in
 
 Finally, there are numerous cleanups and smaller bug fixes for
 Mediatek, Tegra, Samsung, Qualcomm, TI OMAP, Amlogic, Rockchips,
 Renesas, and Xilinx SoCs.
 
 There is a trivial conflict in the cedrus driver, with two branches
 adding the same CEDRUS_CAPABILITY_H265_DEC flag, and another trivial
 remove/remove conflict in linux/dma-mapping.h.
 
 Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Merge tag 'arm-soc-drivers-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC driver updates from Arnd Bergmann:
 "There are a couple of subsystems maintained by other people that merge
  their drivers through the SoC tree, those changes include:

   - The SCMI firmware framework gains support for sensor notifications
     and for controlling voltage domains.

   - A large update for the Tegra memory controller driver, integrating
     it better with the interconnect framework

   - The memory controller subsystem gains support for Mediatek MT8192

   - The reset controller framework gains support for sharing pulsed
     resets

  For Soc specific drivers in drivers/soc, the main changes are

   - The Allwinner/sunxi MBUS gets a rework for the way it handles
     dma_map_ops and offsets between physical and dma address spaces.

   - An errata fix plus some cleanups for Freescale Layerscape SoCs

   - A cleanup for renesas drivers regarding MMIO accesses.

   - New SoC specific drivers for Mediatek MT8192 and MT8183 power
     domains

   - New SoC specific drivers for Aspeed AST2600 LPC bus control and SoC
     identification.

   - Core Power Domain support for Qualcomm MSM8916, MSM8939, SDM660 and
     SDX55.

   - A rework of the TI AM33xx 'genpd' power domain support to use
     information from DT instead of platform data

   - Support for TI AM64x SoCs

   - Allow building some Amlogic drivers as modules instead of built-in

  Finally, there are numerous cleanups and smaller bug fixes for
  Mediatek, Tegra, Samsung, Qualcomm, TI OMAP, Amlogic, Rockchips,
  Renesas, and Xilinx SoCs"

* tag 'arm-soc-drivers-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (222 commits)
  soc: mediatek: mmsys: Specify HAS_IOMEM dependency for MTK_MMSYS
  firmware: xilinx: Properly align function parameter
  firmware: xilinx: Add a blank line after function declaration
  firmware: xilinx: Remove additional newline
  firmware: xilinx: Fix kernel-doc warnings
  firmware: xlnx-zynqmp: fix compilation warning
  soc: xilinx: vcu: add missing register NUM_CORE
  soc: xilinx: vcu: use vcu-settings syscon registers
  dt-bindings: soc: xlnx: extract xlnx, vcu-settings to separate binding
  soc: xilinx: vcu: drop useless success message
  clk: samsung: mark PM functions as __maybe_unused
  soc: samsung: exynos-chipid: initialize later - with arch_initcall
  soc: samsung: exynos-chipid: order list of SoCs by name
  memory: jz4780_nemc: Fix potential NULL dereference in jz4780_nemc_probe()
  memory: ti-emif-sram: only build for ARMv7
  memory: tegra30: Support interconnect framework
  memory: tegra20: Support hardware versioning and clean up OPP table initialization
  dt-bindings: memory: tegra20-emc: Document opp-supported-hw property
  soc: rockchip: io-domain: Fix error return code in rockchip_iodomain_probe()
  reset-controller: ti: force the write operation when assert or deassert
  ...
2020-12-16 16:38:41 -08:00
Linus Torvalds b4ec805464 Power management updates for 5.11-rc1
- Use local_clock() instead of jiffies in the cpufreq statistics to
    improve accuracy (Viresh Kumar).
 
  - Fix up OPP usage in the cpufreq-dt and qcom-cpufreq-nvmem cpufreq
    drivers (Viresh Kumar).
 
  - Clean up the cpufreq core, the intel_pstate driver and the
    schedutil cpufreq governor (Rafael Wysocki).
 
  - Fix up error code paths in the sti-cpufreq and mediatek cpufreq
    drivers (Yangtao Li, Qinglang Miao).
 
  - Fix cpufreq_online() to return error codes instead of success (0)
    in all cases when it fails (Wang ShaoBo).
 
  - Add mt8167 support to the mediatek cpufreq driver and blacklist
    mt8516 in the cpufreq-dt-platdev driver (Fabien Parent).
 
  - Modify the tegra194 cpufreq driver to always return values from
    the frequency table as the current frequency and clean up that
    driver (Sumit Gupta, Jon Hunter).
 
  - Modify the arm_scmi cpufreq driver to allow it to discover the
    power scale present in the performance protocol and provide this
    information to the Energy Model (Lukasz Luba).
 
  - Add missing MODULE_DEVICE_TABLE to several cpufreq drivers (Pali
    Rohár).
 
  - Clean up the CPPC cpufreq driver (Ionela Voinescu).
 
  - Fix NVMEM_IMX_OCOTP dependency in the imx cpufreq driver (Arnd
    Bergmann).
 
  - Rework the poling interval selection for the polling state in
    cpuidle (Mel Gorman).
 
  - Enable suspend-to-idle for PSCI OSI mode in the PSCI cpuidle
    driver (Ulf Hansson).
 
  - Modify the OPP framework to support empty (node-less) OPP tables
    in DT for passing dependency information (Nicola Mazzucato).
 
  - Fix potential lockdep issue in the OPP core and clean up the OPP
    core (Viresh Kumar).
 
  - Modify dev_pm_opp_put_regulators() to accept a NULL argument and
    update its users accordingly (Viresh Kumar).
 
  - Add frequency changes tracepoint to devfreq (Matthias Kaehlcke).
 
  - Add support for governor feature flags to devfreq, make devfreq
    sysfs file permissions depend on the governor and clean up the
    devfreq core (Chanwoo Choi).
 
  - Clean up the tegra20 devfreq driver and deprecate it to allow
    another driver based on EMC_STAT to be used instead of it (Dmitry
    Osipenko).
 
  - Add interconnect support to the tegra30 devfreq driver, allow it
    to take the interconnect and OPP information from DT and clean it
    up ((Dmitry Osipenko).
 
  - Add interconnect support to the exynos-bus devfreq driver along
    with interconnect properties documentation (Sylwester Nawrocki).
 
  - Add suport for AMD Fam17h and Fam19h processors to the RAPL power
    capping driver (Victor Ding, Kim Phillips).
 
  - Fix handling of overly long constraint names in the powercap
    framework (Lukasz Luba).
 
  - Fix the wakeup configuration handling for bridges in the ACPI
    device power management core (Rafael Wysocki).
 
  - Add support for using an abstract scale for power units in the
    Energy Model (EM) and document it (Lukasz Luba).
 
  - Add em_cpu_energy() micro-optimization to the EM (Pavankumar
    Kondeti).
 
  - Modify the generic power domains (genpd) framwework to support
    suspend-to-idle (Ulf Hansson).
 
  - Fix creation of debugfs nodes in genpd (Thierry Strudel).
 
  - Clean up genpd (Lina Iyer).
 
  - Clean up the core system-wide suspend code and make it print
    driver flags for devices with debug enabled (Alex Shi, Patrice
    Chotard, Chen Yu).
 
  - Modify the ACPI system reboot code to make it prepare for system
    power off to avoid confusing the platform firmware (Kai-Heng Feng).
 
  - Update the pm-graph (multiple changes, mostly usability-related)
    and cpupower (online and offline CPU information support) PM
    utilities (Todd Brandt, Brahadambal Srinivasan).
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Merge tag 'pm-5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management updates from Rafael Wysocki:
 "These update cpufreq (core and drivers), cpuidle (polling state
  implementation and the PSCI driver), the OPP (operating performance
  points) framework, devfreq (core and drivers), the power capping RAPL
  (Running Average Power Limit) driver, the Energy Model support, the
  generic power domains (genpd) framework, the ACPI device power
  management, the core system-wide suspend code and power management
  utilities.

  Specifics:

   - Use local_clock() instead of jiffies in the cpufreq statistics to
     improve accuracy (Viresh Kumar).

   - Fix up OPP usage in the cpufreq-dt and qcom-cpufreq-nvmem cpufreq
     drivers (Viresh Kumar).

   - Clean up the cpufreq core, the intel_pstate driver and the
     schedutil cpufreq governor (Rafael Wysocki).

   - Fix up error code paths in the sti-cpufreq and mediatek cpufreq
     drivers (Yangtao Li, Qinglang Miao).

   - Fix cpufreq_online() to return error codes instead of success (0)
     in all cases when it fails (Wang ShaoBo).

   - Add mt8167 support to the mediatek cpufreq driver and blacklist
     mt8516 in the cpufreq-dt-platdev driver (Fabien Parent).

   - Modify the tegra194 cpufreq driver to always return values from the
     frequency table as the current frequency and clean up that driver
     (Sumit Gupta, Jon Hunter).

   - Modify the arm_scmi cpufreq driver to allow it to discover the
     power scale present in the performance protocol and provide this
     information to the Energy Model (Lukasz Luba).

   - Add missing MODULE_DEVICE_TABLE to several cpufreq drivers (Pali
     Rohár).

   - Clean up the CPPC cpufreq driver (Ionela Voinescu).

   - Fix NVMEM_IMX_OCOTP dependency in the imx cpufreq driver (Arnd
     Bergmann).

   - Rework the poling interval selection for the polling state in
     cpuidle (Mel Gorman).

   - Enable suspend-to-idle for PSCI OSI mode in the PSCI cpuidle driver
     (Ulf Hansson).

   - Modify the OPP framework to support empty (node-less) OPP tables in
     DT for passing dependency information (Nicola Mazzucato).

   - Fix potential lockdep issue in the OPP core and clean up the OPP
     core (Viresh Kumar).

   - Modify dev_pm_opp_put_regulators() to accept a NULL argument and
     update its users accordingly (Viresh Kumar).

   - Add frequency changes tracepoint to devfreq (Matthias Kaehlcke).

   - Add support for governor feature flags to devfreq, make devfreq
     sysfs file permissions depend on the governor and clean up the
     devfreq core (Chanwoo Choi).

   - Clean up the tegra20 devfreq driver and deprecate it to allow
     another driver based on EMC_STAT to be used instead of it (Dmitry
     Osipenko).

   - Add interconnect support to the tegra30 devfreq driver, allow it to
     take the interconnect and OPP information from DT and clean it up
     (Dmitry Osipenko).

   - Add interconnect support to the exynos-bus devfreq driver along
     with interconnect properties documentation (Sylwester Nawrocki).

   - Add suport for AMD Fam17h and Fam19h processors to the RAPL power
     capping driver (Victor Ding, Kim Phillips).

   - Fix handling of overly long constraint names in the powercap
     framework (Lukasz Luba).

   - Fix the wakeup configuration handling for bridges in the ACPI
     device power management core (Rafael Wysocki).

   - Add support for using an abstract scale for power units in the
     Energy Model (EM) and document it (Lukasz Luba).

   - Add em_cpu_energy() micro-optimization to the EM (Pavankumar
     Kondeti).

   - Modify the generic power domains (genpd) framwework to support
     suspend-to-idle (Ulf Hansson).

   - Fix creation of debugfs nodes in genpd (Thierry Strudel).

   - Clean up genpd (Lina Iyer).

   - Clean up the core system-wide suspend code and make it print driver
     flags for devices with debug enabled (Alex Shi, Patrice Chotard,
     Chen Yu).

   - Modify the ACPI system reboot code to make it prepare for system
     power off to avoid confusing the platform firmware (Kai-Heng Feng).

   - Update the pm-graph (multiple changes, mostly usability-related)
     and cpupower (online and offline CPU information support) PM
     utilities (Todd Brandt, Brahadambal Srinivasan)"

* tag 'pm-5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (86 commits)
  cpufreq: Fix cpufreq_online() return value on errors
  cpufreq: Fix up several kerneldoc comments
  cpufreq: stats: Use local_clock() instead of jiffies
  cpufreq: schedutil: Simplify sugov_update_next_freq()
  cpufreq: intel_pstate: Simplify intel_cpufreq_update_pstate()
  PM: domains: create debugfs nodes when adding power domains
  opp: of: Allow empty opp-table with opp-shared
  dt-bindings: opp: Allow empty OPP tables
  media: venus: dev_pm_opp_put_*() accepts NULL argument
  drm/panfrost: dev_pm_opp_put_*() accepts NULL argument
  drm/lima: dev_pm_opp_put_*() accepts NULL argument
  PM / devfreq: exynos: dev_pm_opp_put_*() accepts NULL argument
  cpufreq: qcom-cpufreq-nvmem: dev_pm_opp_put_*() accepts NULL argument
  cpufreq: dt: dev_pm_opp_put_regulators() accepts NULL argument
  opp: Allow dev_pm_opp_put_*() APIs to accept NULL opp_table
  opp: Don't create an OPP table from dev_pm_opp_get_opp_table()
  cpufreq: dt: Don't (ab)use dev_pm_opp_get_opp_table() to create OPP table
  opp: Reduce the size of critical section in _opp_kref_release()
  PM / EM: Micro optimization in em_cpu_energy
  cpufreq: arm_scmi: Discover the power scale in performance protocol
  ...
2020-12-15 16:30:31 -08:00
Linus Torvalds 2dda5700ef regulator: Updates for v5.11
This has been a quiet release for the regulator API, a few new drivers
 and the usual fixes and cleanup traffic but not much else going on:
 
  - Optimisations for the handling of voltage enumeration, especially
    with sparse selector sets, from Claudiu Beznea.
  - Support for several ARM SCMI regulators, Dialog DA9121, NXP PF8x00,
    Qualcomm PMX55, PM8350 and PM8350c
 
 The addition of the SCMI regulator driver (which controls regulators via
 system firmware) means that we've pulled in the support for the underlying
 firmware operations from the firmware tree.
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Merge tag 'regulator-v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator

Pull regulator updates from Mark Brown:
 "This has been a quiet release for the regulator API, a few new drivers
  and the usual fixes and cleanup traffic but not much else going on:

   - Optimisations for the handling of voltage enumeration, especially
     with sparse selector sets, from Claudiu Beznea.

   - Support for several ARM SCMI regulators, Dialog DA9121, NXP PF8x00,
     Qualcomm PMX55, PM8350 and PM8350c

  The addition of the SCMI regulator driver (which controls regulators
  via system firmware) means that we've pulled in the support for the
  underlying firmware operations from the firmware tree"

* tag 'regulator-v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (53 commits)
  regulator: mc13892-regulator: convert comma to semicolon
  regulator: pfuze100: Convert the driver to DT-only
  regulator: max14577: Add proper module aliases strings
  regulator: da9121: Potential Oops in da9121_assign_chip_model()
  regulator: da9121: Fix index used for DT property
  regulator: da9121: Remove uninitialised string variable
  regulator: axp20x: Fix DLDO2 voltage control register mask for AXP22x
  regulator: qcom-rpmh: Add support for PM8350/PM8350c
  regulator: dt-bindings: Add PM8350x compatibles
  regulator: da9121: include linux/gpio/consumer.h
  regulator: da9121: Mark some symbols with static keyword
  regulator: da9121: Request IRQ directly and free in release function to avoid masking race
  regulator: da9121: add interrupt support
  regulator: da9121: add mode support
  regulator: da9121: add current support
  regulator: da9121: Update registration to support multiple buck variants
  regulator: da9121: Add support for device variants via devicetree
  regulator: da9121: Add device variant descriptors
  regulator: da9121: Add device variant regmaps
  regulator: da9121: Add device variants
  ...
2020-12-15 15:48:30 -08:00
Linus Torvalds 2911ed9f47 Char / Misc driver updates for 5.11-rc1
Here is the big char/misc driver update for 5.11-rc1.
 
 Continuing the tradition of previous -rc1 pulls, there seems to be more
 and more tiny driver subsystems flowing through this tree.
 
 Lots of different things, all of which have been in linux-next for a
 while with no reported issues:
 	- extcon driver updates
 	- habannalab driver updates
 	- mei driver updates
 	- uio driver updates
 	- binder fixes and features added
 	- soundwire driver updates
 	- mhi bus driver updates
 	- phy driver updates
 	- coresight driver updates
 	- fpga driver updates
 	- speakup driver updates
 	- slimbus driver updates
 	- various small char and misc driver updates
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char / misc driver updates from Greg KH:
 "Here is the big char/misc driver update for 5.11-rc1.

  Continuing the tradition of previous -rc1 pulls, there seems to be
  more and more tiny driver subsystems flowing through this tree.

  Lots of different things, all of which have been in linux-next for a
  while with no reported issues:

   - extcon driver updates

   - habannalab driver updates

   - mei driver updates

   - uio driver updates

   - binder fixes and features added

   - soundwire driver updates

   - mhi bus driver updates

   - phy driver updates

   - coresight driver updates

   - fpga driver updates

   - speakup driver updates

   - slimbus driver updates

   - various small char and misc driver updates"

* tag 'char-misc-5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (305 commits)
  extcon: max77693: Fix modalias string
  extcon: fsa9480: Support TI TSU6111 variant
  extcon: fsa9480: Rewrite bindings in YAML and extend
  dt-bindings: extcon: add binding for TUSB320
  extcon: Add driver for TI TUSB320
  slimbus: qcom: fix potential NULL dereference in qcom_slim_prg_slew()
  siox: Make remove callback return void
  siox: Use bus_type functions for probe, remove and shutdown
  spmi: Add driver shutdown support
  spmi: fix some coding style issues at the spmi core
  spmi: get rid of a warning when built with W=1
  uio: uio_hv_generic: use devm_kzalloc() for private data alloc
  uio: uio_fsl_elbc_gpcm: use device-managed allocators
  uio: uio_aec: use devm_kzalloc() for uio_info object
  uio: uio_cif: use devm_kzalloc() for uio_info object
  uio: uio_netx: use devm_kzalloc() for or uio_info object
  uio: uio_mf624: use devm_kzalloc() for uio_info object
  uio: uio_sercos3: use device-managed functions for simple allocs
  uio: uio_dmem_genirq: finalize conversion of probe to devm_ handlers
  uio: uio_dmem_genirq: convert simple allocations to device-managed
  ...
2020-12-15 14:10:09 -08:00
Linus Torvalds 7240153a9b Driver core updates for 5.11-rc1
Here is the big driver core updates for 5.11-rc1
 
 This time there was a lot of different work happening here for some
 reason:
 	- redo of the fwnode link logic, speeding it up greatly
 	- auxiliary bus added (this was a tag that will be pulled in
 	  from other trees/maintainers this merge window as well, as
 	  driver subsystems started to rely on it)
 	- platform driver core cleanups on the way to fixing some
 	  long-time api updates in future releases
 	- minor fixes and tweaks.
 
 All have been in linux-next with no (finally) reported issues.  Testing
 there did helped in shaking issues out a lot :)
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core updates from Greg KH:
 "Here is the big driver core updates for 5.11-rc1

  This time there was a lot of different work happening here for some
  reason:

   - redo of the fwnode link logic, speeding it up greatly

   - auxiliary bus added (this was a tag that will be pulled in from
     other trees/maintainers this merge window as well, as driver
     subsystems started to rely on it)

   - platform driver core cleanups on the way to fixing some long-time
     api updates in future releases

   - minor fixes and tweaks.

  All have been in linux-next with no (finally) reported issues. Testing
  there did helped in shaking issues out a lot :)"

* tag 'driver-core-5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (39 commits)
  driver core: platform: don't oops in platform_shutdown() on unbound devices
  ACPI: Use fwnode_init() to set up fwnode
  misc: pvpanic: Replace OF headers by mod_devicetable.h
  misc: pvpanic: Combine ACPI and platform drivers
  usb: host: sl811: Switch to use platform_get_mem_or_io()
  vfio: platform: Switch to use platform_get_mem_or_io()
  driver core: platform: Introduce platform_get_mem_or_io()
  dyndbg: fix use before null check
  soc: fix comment for freeing soc_dev_attr
  driver core: platform: use bus_type functions
  driver core: platform: change logic implementing platform_driver_probe
  driver core: platform: reorder functions
  driver core: make driver_probe_device() static
  driver core: Fix a couple of typos
  driver core: Reorder devices on successful probe
  driver core: Delete pointless parameter in fwnode_operations.add_links
  driver core: Refactor fw_devlink feature
  efi: Update implementation of add_links() to create fwnode links
  of: property: Update implementation of add_links() to create fwnode links
  driver core: Use device's fwnode to check if it is waiting for suppliers
  ...
2020-12-15 14:02:26 -08:00
Linus Torvalds ac73e3dc8a Merge branch 'akpm' (patches from Andrew)
Merge misc updates from Andrew Morton:

 - a few random little subsystems

 - almost all of the MM patches which are staged ahead of linux-next
   material. I'll trickle to post-linux-next work in as the dependents
   get merged up.

Subsystems affected by this patch series: kthread, kbuild, ide, ntfs,
ocfs2, arch, and mm (slab-generic, slab, slub, dax, debug, pagecache,
gup, swap, shmem, memcg, pagemap, mremap, hmm, vmalloc, documentation,
kasan, pagealloc, memory-failure, hugetlb, vmscan, z3fold, compaction,
oom-kill, migration, cma, page-poison, userfaultfd, zswap, zsmalloc,
uaccess, zram, and cleanups).

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (200 commits)
  mm: cleanup kstrto*() usage
  mm: fix fall-through warnings for Clang
  mm: slub: convert sysfs sprintf family to sysfs_emit/sysfs_emit_at
  mm: shmem: convert shmem_enabled_show to use sysfs_emit_at
  mm:backing-dev: use sysfs_emit in macro defining functions
  mm: huge_memory: convert remaining use of sprintf to sysfs_emit and neatening
  mm: use sysfs_emit for struct kobject * uses
  mm: fix kernel-doc markups
  zram: break the strict dependency from lzo
  zram: add stat to gather incompressible pages since zram set up
  zram: support page writeback
  mm/process_vm_access: remove redundant initialization of iov_r
  mm/zsmalloc.c: rework the list_add code in insert_zspage()
  mm/zswap: move to use crypto_acomp API for hardware acceleration
  mm/zswap: fix passing zero to 'PTR_ERR' warning
  mm/zswap: make struct kernel_param_ops definitions const
  userfaultfd/selftests: hint the test runner on required privilege
  userfaultfd/selftests: fix retval check for userfaultfd_open()
  userfaultfd/selftests: always dump something in modes
  userfaultfd: selftests: make __{s,u}64 format specifiers portable
  ...
2020-12-15 12:53:37 -08:00
Jason Gunthorpe 57efa1fe59 mm/gup: prevent gup_fast from racing with COW during fork
Since commit 70e806e4e6 ("mm: Do early cow for pinned pages during
fork() for ptes") pages under a FOLL_PIN will not be write protected
during COW for fork.  This means that pages returned from
pin_user_pages(FOLL_WRITE) should not become write protected while the pin
is active.

However, there is a small race where get_user_pages_fast(FOLL_PIN) can
establish a FOLL_PIN at the same time copy_present_page() is write
protecting it:

        CPU 0                             CPU 1
   get_user_pages_fast()
    internal_get_user_pages_fast()
                                       copy_page_range()
                                         pte_alloc_map_lock()
                                           copy_present_page()
                                             atomic_read(has_pinned) == 0
					     page_maybe_dma_pinned() == false
     atomic_set(has_pinned, 1);
     gup_pgd_range()
      gup_pte_range()
       pte_t pte = gup_get_pte(ptep)
       pte_access_permitted(pte)
       try_grab_compound_head()
                                             pte = pte_wrprotect(pte)
	                                     set_pte_at();
                                         pte_unmap_unlock()
      // GUP now returns with a write protected page

The first attempt to resolve this by using the write protect caused
problems (and was missing a barrrier), see commit f3c64eda3e ("mm: avoid
early COW write protect games during fork()")

Instead wrap copy_p4d_range() with the write side of a seqcount and check
the read side around gup_pgd_range().  If there is a collision then
get_user_pages_fast() fails and falls back to slow GUP.

Slow GUP is safe against this race because copy_page_range() is only
called while holding the exclusive side of the mmap_lock on the src
mm_struct.

[akpm@linux-foundation.org: coding style fixes]
  Link: https://lore.kernel.org/r/CAHk-=wi=iCnYCARbPGjkVJu9eyYeZ13N64tZYLdOB8CP5Q_PLw@mail.gmail.com

Link: https://lkml.kernel.org/r/2-v4-908497cf359a+4782-gup_fork_jgg@nvidia.com
Fixes: f3c64eda3e ("mm: avoid early COW write protect games during fork()")
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Reviewed-by: John Hubbard <jhubbard@nvidia.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Peter Xu <peterx@redhat.com>
Acked-by: "Ahmed S. Darwish" <a.darwish@linutronix.de>	[seqcount_t parts]
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Hugh Dickins <hughd@google.com>
Cc: Jann Horn <jannh@google.com>
Cc: Kirill Shutemov <kirill@shutemov.name>
Cc: Kirill Tkhai <ktkhai@virtuozzo.com>
Cc: Leon Romanovsky <leonro@nvidia.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-12-15 12:13:39 -08:00
Rafael J. Wysocki e1f1320fc0 Merge branch 'pm-cpufreq'
* pm-cpufreq: (31 commits)
  cpufreq: Fix cpufreq_online() return value on errors
  cpufreq: Fix up several kerneldoc comments
  cpufreq: stats: Use local_clock() instead of jiffies
  cpufreq: schedutil: Simplify sugov_update_next_freq()
  cpufreq: intel_pstate: Simplify intel_cpufreq_update_pstate()
  cpufreq: arm_scmi: Discover the power scale in performance protocol
  firmware: arm_scmi: Add power_scale_mw_get() interface
  cpufreq: tegra194: Rename tegra194_get_speed_common function
  cpufreq: tegra194: Remove unnecessary frequency calculation
  cpufreq: tegra186: Simplify cluster information lookup
  cpufreq: tegra186: Fix sparse 'incorrect type in assignment' warning
  cpufreq: imx: fix NVMEM_IMX_OCOTP dependency
  cpufreq: vexpress-spc: Add missing MODULE_ALIAS
  cpufreq: scpi: Add missing MODULE_ALIAS
  cpufreq: loongson1: Add missing MODULE_ALIAS
  cpufreq: sun50i: Add missing MODULE_DEVICE_TABLE
  cpufreq: st: Add missing MODULE_DEVICE_TABLE
  cpufreq: qcom: Add missing MODULE_DEVICE_TABLE
  cpufreq: mediatek: Add missing MODULE_DEVICE_TABLE
  cpufreq: highbank: Add missing MODULE_DEVICE_TABLE
  ...
2020-12-15 15:24:52 +01:00
Linus Torvalds 0ca2ce81eb arm64 updates for 5.11:
- Expose tag address bits in siginfo. The original arm64 ABI did not
   expose any of the bits 63:56 of a tagged address in siginfo. In the
   presence of user ASAN or MTE, this information may be useful. The
   implementation is generic to other architectures supporting tags (like
   SPARC ADI, subject to wiring up the arch code). The user will have to
   opt in via sigaction(SA_EXPOSE_TAGBITS) so that the extra bits, if
   available, become visible in si_addr.
 
 - Default to 32-bit wide ZONE_DMA. Previously, ZONE_DMA was set to the
   lowest 1GB to cope with the Raspberry Pi 4 limitations, to the
   detriment of other platforms. With these changes, the kernel scans the
   Device Tree dma-ranges and the ACPI IORT information before deciding
   on a smaller ZONE_DMA.
 
 - Strengthen READ_ONCE() to acquire when CONFIG_LTO=y. When building
   with LTO, there is an increased risk of the compiler converting an
   address dependency headed by a READ_ONCE() invocation into a control
   dependency and consequently allowing for harmful reordering by the
   CPU.
 
 - Add CPPC FFH support using arm64 AMU counters.
 
 - set_fs() removal on arm64. This renders the User Access Override (UAO)
   ARMv8 feature unnecessary.
 
 - Perf updates: PMU driver for the ARM DMC-620 memory controller, sysfs
   identifier file for SMMUv3, stop event counters support for i.MX8MP,
   enable the perf events-based hard lockup detector.
 
 - Reorganise the kernel VA space slightly so that 52-bit VA
   configurations can use more virtual address space.
 
 - Improve the robustness of the arm64 memory offline event notifier.
 
 - Pad the Image header to 64K following the EFI header definition
   updated recently to increase the section alignment to 64K.
 
 - Support CONFIG_CMDLINE_EXTEND on arm64.
 
 - Do not use tagged PC in the kernel (TCR_EL1.TBID1==1), freeing up 8
   bits for PtrAuth.
 
 - Switch to vmapped shadow call stacks.
 
 - Miscellaneous clean-ups.
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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:

 - Expose tag address bits in siginfo. The original arm64 ABI did not
   expose any of the bits 63:56 of a tagged address in siginfo. In the
   presence of user ASAN or MTE, this information may be useful. The
   implementation is generic to other architectures supporting tags
   (like SPARC ADI, subject to wiring up the arch code). The user will
   have to opt in via sigaction(SA_EXPOSE_TAGBITS) so that the extra
   bits, if available, become visible in si_addr.

 - Default to 32-bit wide ZONE_DMA. Previously, ZONE_DMA was set to the
   lowest 1GB to cope with the Raspberry Pi 4 limitations, to the
   detriment of other platforms. With these changes, the kernel scans
   the Device Tree dma-ranges and the ACPI IORT information before
   deciding on a smaller ZONE_DMA.

 - Strengthen READ_ONCE() to acquire when CONFIG_LTO=y. When building
   with LTO, there is an increased risk of the compiler converting an
   address dependency headed by a READ_ONCE() invocation into a control
   dependency and consequently allowing for harmful reordering by the
   CPU.

 - Add CPPC FFH support using arm64 AMU counters.

 - set_fs() removal on arm64. This renders the User Access Override
   (UAO) ARMv8 feature unnecessary.

 - Perf updates: PMU driver for the ARM DMC-620 memory controller, sysfs
   identifier file for SMMUv3, stop event counters support for i.MX8MP,
   enable the perf events-based hard lockup detector.

 - Reorganise the kernel VA space slightly so that 52-bit VA
   configurations can use more virtual address space.

 - Improve the robustness of the arm64 memory offline event notifier.

 - Pad the Image header to 64K following the EFI header definition
   updated recently to increase the section alignment to 64K.

 - Support CONFIG_CMDLINE_EXTEND on arm64.

 - Do not use tagged PC in the kernel (TCR_EL1.TBID1==1), freeing up 8
   bits for PtrAuth.

 - Switch to vmapped shadow call stacks.

 - Miscellaneous clean-ups.

* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (78 commits)
  perf/imx_ddr: Add system PMU identifier for userspace
  bindings: perf: imx-ddr: add compatible string
  arm64: Fix build failure when HARDLOCKUP_DETECTOR_PERF is enabled
  arm64: mte: fix prctl(PR_GET_TAGGED_ADDR_CTRL) if TCF0=NONE
  arm64: mark __system_matches_cap as __maybe_unused
  arm64: uaccess: remove vestigal UAO support
  arm64: uaccess: remove redundant PAN toggling
  arm64: uaccess: remove addr_limit_user_check()
  arm64: uaccess: remove set_fs()
  arm64: uaccess cleanup macro naming
  arm64: uaccess: split user/kernel routines
  arm64: uaccess: refactor __{get,put}_user
  arm64: uaccess: simplify __copy_user_flushcache()
  arm64: uaccess: rename privileged uaccess routines
  arm64: sdei: explicitly simulate PAN/UAO entry
  arm64: sdei: move uaccess logic to arch/arm64/
  arm64: head.S: always initialize PSTATE
  arm64: head.S: cleanup SCTLR_ELx initialization
  arm64: head.S: rename el2_setup -> init_kernel_el
  arm64: add C wrappers for SET_PSTATE_*()
  ...
2020-12-14 16:24:30 -08:00
Linus Torvalds 2b34233ce2 - Enable additional logging mode on older Xeons (Tony Luck)
- Pass error records logged by firmware through the MCE decoding chain
   to provide human-readable error descriptions instead of raw values
   (Smita Koralahalli)
 
 - Some #MC handler fixes (Gabriele Paoloni)
 
 - The usual small fixes and cleanups all over.
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Merge tag 'ras_updates_for_v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 RAS updates from Borislav Petkov:

 - Enable additional logging mode on older Xeons (Tony Luck)

 - Pass error records logged by firmware through the MCE decoding chain
   to provide human-readable error descriptions instead of raw values
   (Smita Koralahalli)

 - Some #MC handler fixes (Gabriele Paoloni)

 - The usual small fixes and cleanups all over.

* tag 'ras_updates_for_v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/mce: Rename kill_it to kill_current_task
  x86/mce: Remove redundant call to irq_work_queue()
  x86/mce: Panic for LMCE only if mca_cfg.tolerant < 3
  x86/mce: Move the mce_panic() call and 'kill_it' assignments to the right places
  x86/mce, cper: Pass x86 CPER through the MCA handling chain
  x86/mce: Use "safe" MSR functions when enabling additional error logging
  x86/mce: Correct the detection of invalid notifier priorities
  x86/mce: Assign boolean values to a bool variable
  x86/mce: Enable additional error logging on certain Intel CPUs
  x86/mce: Remove unneeded break
2020-12-14 13:00:10 -08:00
Linus Torvalds 9e4b0d55d8 Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto updates from Herbert Xu:
 "API:
   - Add speed testing on 1420-byte blocks for networking

  Algorithms:
   - Improve performance of chacha on ARM for network packets
   - Improve performance of aegis128 on ARM for network packets

  Drivers:
   - Add support for Keem Bay OCS AES/SM4
   - Add support for QAT 4xxx devices
   - Enable crypto-engine retry mechanism in caam
   - Enable support for crypto engine on sdm845 in qce
   - Add HiSilicon PRNG driver support"

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (161 commits)
  crypto: qat - add capability detection logic in qat_4xxx
  crypto: qat - add AES-XTS support for QAT GEN4 devices
  crypto: qat - add AES-CTR support for QAT GEN4 devices
  crypto: atmel-i2c - select CONFIG_BITREVERSE
  crypto: hisilicon/trng - replace atomic_add_return()
  crypto: keembay - Add support for Keem Bay OCS AES/SM4
  dt-bindings: Add Keem Bay OCS AES bindings
  crypto: aegis128 - avoid spurious references crypto_aegis128_update_simd
  crypto: seed - remove trailing semicolon in macro definition
  crypto: x86/poly1305 - Use TEST %reg,%reg instead of CMP $0,%reg
  crypto: x86/sha512 - Use TEST %reg,%reg instead of CMP $0,%reg
  crypto: aesni - Use TEST %reg,%reg instead of CMP $0,%reg
  crypto: cpt - Fix sparse warnings in cptpf
  hwrng: ks-sa - Add dependency on IOMEM and OF
  crypto: lib/blake2s - Move selftest prototype into header file
  crypto: arm/aes-ce - work around Cortex-A57/A72 silion errata
  crypto: ecdh - avoid unaligned accesses in ecdh_set_secret()
  crypto: ccree - rework cache parameters handling
  crypto: cavium - Use dma_set_mask_and_coherent to simplify code
  crypto: marvell/octeontx - Use dma_set_mask_and_coherent to simplify code
  ...
2020-12-14 12:18:19 -08:00
Rafael J. Wysocki 30c768829a Merge branch 'cpufreq/arm/linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm
Pull ARM cpufreq updates for 5.11-rc1 from Viresh Kumar:

"This contains the following updates:

 - Fix imx's NVMEM_IMX_OCOTP dependency (Arnd Bergmann).

 - Add support for mt8167 and blacklist mt8516 (Fabien Parent).

 - Some ->get() callback related cleanups to the tegra194 driver and
   some optimizations in tegra186 driver (Jon Hunter and Sumit Gupta).

 - Power scale improvements to arm_scmi driver (Lukasz Luba).

 - Add missing MODULE_DEVICE_TABLE and MODULE_ALIAS to several drivers
   (Pali Rohár).

 - Fix error path in mediatek driver (Qinglang Miao).

 - Fix memleak in ST's cpufreq driver (Yangtao Li)."

* 'cpufreq/arm/linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm: (22 commits)
  cpufreq: arm_scmi: Discover the power scale in performance protocol
  firmware: arm_scmi: Add power_scale_mw_get() interface
  cpufreq: tegra194: Rename tegra194_get_speed_common function
  cpufreq: tegra194: Remove unnecessary frequency calculation
  cpufreq: tegra186: Simplify cluster information lookup
  cpufreq: tegra186: Fix sparse 'incorrect type in assignment' warning
  cpufreq: imx: fix NVMEM_IMX_OCOTP dependency
  cpufreq: vexpress-spc: Add missing MODULE_ALIAS
  cpufreq: scpi: Add missing MODULE_ALIAS
  cpufreq: loongson1: Add missing MODULE_ALIAS
  cpufreq: sun50i: Add missing MODULE_DEVICE_TABLE
  cpufreq: st: Add missing MODULE_DEVICE_TABLE
  cpufreq: qcom: Add missing MODULE_DEVICE_TABLE
  cpufreq: mediatek: Add missing MODULE_DEVICE_TABLE
  cpufreq: highbank: Add missing MODULE_DEVICE_TABLE
  cpufreq: ap806: Add missing MODULE_DEVICE_TABLE
  cpufreq: mediatek: add missing platform_driver_unregister() on error in mtk_cpufreq_driver_init
  cpufreq: tegra194: get consistent cpuinfo_cur_freq
  cpufreq: blacklist mt8516 in cpufreq-dt-platdev
  cpufreq: mediatek: Add support for mt8167
  ...
2020-12-14 20:29:50 +01:00
Ard Biesheuvel e0a6aa3050 efi: ia64: disable the capsule loader
EFI capsule loading is a feature that was introduced into EFI long after
its initial introduction on Itanium, and it is highly unlikely that IA64
systems are receiving firmware updates in the first place, let alone
using EFI capsules.

So let's disable capsule support altogether on IA64. This fixes a build
error on IA64 due to a recent change that added an unconditional
include of asm/efi.h, which IA64 does not provide.

While at it, tweak the make rules a bit so that the EFI capsule
component that is always builtin (even if the EFI capsule loader itself
is built as a module) is omitted for all architectures if the module is
not enabled in the build.

Cc: Tony Luck <tony.luck@intel.com>
Link: https://lore.kernel.org/linux-efi/20201214152200.38353-1-ardb@kernel.org
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
2020-12-14 16:24:19 +01:00
Zou Wei 69fe24d1d8 firmware: xilinx: Mark pm_api_features_map with static keyword
Fix the following sparse warning:

drivers/firmware/xilinx/zynqmp.c:32:1: warning: symbol 'pm_api_features_map' was not declared. Should it be static?

Signed-off-by: Zou Wei <zou_wei@huawei.com>
Link: https://lore.kernel.org/r/1606823513-121578-1-git-send-email-zou_wei@huawei.com
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-12-09 23:00:22 +01:00
Arnd Bergmann 629c96256d arm64: soc: ZynqMP SoC changes for v5.11 v2
- Small alignments in Xilinx Firmware driver
 - Exposing syscon interface for VCU driver
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Merge tag 'zynqmp-soc-for-v5.11-v2' of https://github.com/Xilinx/linux-xlnx into arm/drivers

arm64: soc: ZynqMP SoC changes for v5.11 v2

- Small alignments in Xilinx Firmware driver
- Exposing syscon interface for VCU driver

* tag 'zynqmp-soc-for-v5.11-v2' of https://github.com/Xilinx/linux-xlnx:
  firmware: xilinx: Properly align function parameter
  firmware: xilinx: Add a blank line after function declaration
  firmware: xilinx: Remove additional newline
  firmware: xilinx: Fix kernel-doc warnings
  firmware: xlnx-zynqmp: fix compilation warning
  soc: xilinx: vcu: add missing register NUM_CORE
  soc: xilinx: vcu: use vcu-settings syscon registers
  dt-bindings: soc: xlnx: extract xlnx, vcu-settings to separate binding
  soc: xilinx: vcu: drop useless success message

Link: https://lore.kernel.org/r/71d38756-4456-29fc-26a3-341e1d09aafe@monstr.eu
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-12-09 20:37:13 +01:00
Michal Simek 332bee1640 firmware: xilinx: Fix kernel-doc warnings
kernel-doc is reporting some style issues. The patch is fixing them.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Link: https://lore.kernel.org/r/e606233d15bfdc594535dd34eb85472b42f61830.1606832997.git.michal.simek@xilinx.com
2020-12-09 19:36:34 +01:00
Saravana Kannan 2d09e6eb4a driver core: Delete pointless parameter in fwnode_operations.add_links
The struct device input to add_links() is not used for anything. So
delete it.

Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Saravana Kannan <saravanak@google.com>
Link: https://lore.kernel.org/r/20201121020232.908850-18-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-09 19:14:48 +01:00
Saravana Kannan e82a840cb1 efi: Update implementation of add_links() to create fwnode links
The semantics of add_links() has changed from creating device link
between devices to creating fwnode links between fwnodes. So, update the
implementation of add_links() to match the new semantics.

Signed-off-by: Saravana Kannan <saravanak@google.com>
Link: https://lore.kernel.org/r/20201121020232.908850-16-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-09 19:13:03 +01:00
Saravana Kannan 04f63c213b driver core: Redefine the meaning of fwnode_operations.add_links()
Change the meaning of fwnode_operations.add_links() to just create
fwnode links by parsing the properties of a given fwnode.

This patch doesn't actually make any code changes. To keeps things more
digestable, the actual functional changes come in later patches in this
series.

Signed-off-by: Saravana Kannan <saravanak@google.com>
Link: https://lore.kernel.org/r/20201121020232.908850-12-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-09 19:10:21 +01:00
Saravana Kannan 01bb86b380 driver core: Add fwnode_init()
There are multiple locations in the kernel where a struct fwnode_handle
is initialized. Add fwnode_init() so that we have one way of
initializing a fwnode_handle.

Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Saravana Kannan <saravanak@google.com>
Link: https://lore.kernel.org/r/20201121020232.908850-8-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-09 19:10:20 +01:00
Colin Ian King 54da51a841 firmware: fix a spelling mistake "managament" -> "management" in Kconfig
There is a spelling mistake in the Kconfig help text. Fix it.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Link: https://lore.kernel.org/r/20201204192250.1151316-1-colin.king@canonical.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-09 15:42:19 +01:00
Marc Zyngier 3a514592b6 Merge remote-tracking branch 'origin/kvm-arm64/psci-relay' into kvmarm-master/next
Signed-off-by: Marc Zyngier <maz@kernel.org>
2020-12-09 10:00:24 +00:00
Ard Biesheuvel 54649911f3 efi: stub: get rid of efi_get_max_fdt_addr()
Now that ARM started following the example of arm64 and RISC-V, and
no longer imposes any restrictions on the placement of the FDT in
memory at boot, we no longer need per-arch implementations of
efi_get_max_fdt_addr() to factor out the differences. So get rid of
it.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Atish Patra <atish.patra@wdc.com>
Link: https://lore.kernel.org/r/20201029134901.9773-1-ardb@kernel.org
2020-12-09 08:37:27 +01:00
Heinrich Schuchardt ff20661bb5 efi/efi_test: read RuntimeServicesSupported
Since the UEFI 2.8A specification the UEFI enabled firmware provides a
configuration table EFI_RT_PROPERTIES_TABLE which indicates which runtime
services are enabled. The EFI stub reads this table and saves the value of
the field RuntimeServicesSupported internally.

The Firmware Test Suite requires the value to determine if UEFI runtime
services are correctly implemented.

With this patch an IOCTL call is provided to read the value of the field
RuntimeServicesSupported, e.g.

    #define EFI_RUNTIME_GET_SUPPORTED_MASK \
            _IOR('p', 0x0C, unsigned int)
    unsigned int mask;
    fd = open("/dev/efi_test", O_RDWR);
    ret = ioctl(fd, EFI_RUNTIME_GET_SUPPORTED_MASK, &mask);

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Link: https://lore.kernel.org/r/20201127192051.1430-1-xypron.glpk@gmx.de
Acked-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Ivan Hu <ivan.hu@canonical.com>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
2020-12-09 08:37:27 +01:00
Ard Biesheuvel 4dbe44fb53 efi: capsule: clean scatter-gather entries from the D-cache
Scatter-gather lists passed to UpdateCapsule() should be cleaned
from the D-cache to ensure that they are visible to the CPU after a
warm reboot before the MMU is enabled. On ARM and arm64 systems, this
implies a D-cache clean by virtual address to the point of coherency.

However, due to the fact that the firmware itself is not able to map
physical addresses back to virtual addresses when running under the OS,
this must be done by the caller.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
2020-12-09 08:37:27 +01:00
Arnd Bergmann e0839f3ea4 Merge tag 'imx-drivers-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into arm/drivers
i.MX drivers change for 5.11:

- A series from Daniel Baluta to update imx-dsp driver and export
  functions for on demand channel request/free.
- A number of patches to add power domains for i.MX8qxp DC0, LVDS1,
  MIPI1 and JPEG subsystems.
- Add dummy functions for i.MX firmware drivers to avoid build failure
  seen with COMPILE_TEST.

* tag 'imx-drivers-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  firmware: imx: scu-pd: Add some power domains support for i.MX8qxp MIPI1 subsystem
  firmware: imx: scu-pd: Add main power domain support for i.MX8qxp LVDS1 subsystem
  firmware: imx: scu-pd: Add video0/1 power domains support for i.MX8qxp DC0 subsystem
  firmware: imx-dsp: Export functions to request/free channels
  firmware: imx: Save channel name for further use
  firmware: imx: Introduce imx_dsp_setup_channels
  firmware: imx: scu-pd: Add power domains for imx-jpeg
  firmware: imx: add dummy functions

Link: https://lore.kernel.org/r/20201202142717.9262-1-shawnguo@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-12-09 00:39:57 +01:00
Arnd Bergmann 2bd87914b2 Merge tag 'amlogic-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic into arm/drivers
soc: amlogic: driver updates for v5.11
- enable building as modules
- reset API updates

* tag 'amlogic-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic:
  soc: amlogic: replace devm_reset_control_array_get()
  soc: amlogic: canvas: add missing put_device() call in meson_canvas_get()
  firmware: meson-sm: enable build as module
  soc: meson: enable building drivers as modules
  soc: amlogic: socinfo: build for specific arch

Link: https://lore.kernel.org/r/7him9ljgtr.fsf@baylibre.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-12-09 00:39:56 +01:00
Arnd Bergmann 8dc0aac1cc Merge tag 'drivers_soc_for_5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/ssantosh/linux-keystone into arm/drivers
drivers: soc: TI SOC changes for 5.11

- ti_sci changes towards DMSS support
- Static warning fixes
- Kconfig update for Keystone ARM64 socs
- AM64X SOC family support

* tag 'drivers_soc_for_5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/ssantosh/linux-keystone: (23 commits)
  drivers: soc: ti: knav_qmss_queue: Fix error return code in knav_queue_probe
  soc: ti: Fix reference imbalance in knav_dma_probe
  soc: ti: pruss: Remove wrong check against *get_match_data return value
  soc: ti: Kconfig: Drop ARM64 SoC specific configs
  soc: ti: k3-ringacc: Provide documentation for 'k3_ring's 'state'
  soc: ti: wkup_m3_ipc: Document 'm3_ipc' parameter throughout
  soc: ti: pm33xx: Remove set but unused variable 'ret'
  soc: ti: knav_dma: Fix a kernel function doc formatting issue
  soc: ti: knav_qmss_queue: Fix a whole host of function documentation issues
  soc: ti: knav_qmss_queue: Remove set but unchecked variable 'ret'
  soc: ti: omap-prm: Do not check rstst bit on deassert if already deasserted
  soc: ti: knav_qmss: fix reference leak in knav_queue_probe
  soc: ti: k3-socinfo: Add entry for AM64X SoC family
  soc: ti: k3-ringacc: Use correct device for allocation in RING mode
  firmware: ti_sci: rm: Remove unused config() from ti_sci_rm_ringacc_ops
  soc: ti: k3-ringacc: Use the ti_sci set_cfg callback for ring configuration
  firmware: ti_sci: rm: Add new ops for ring configuration
  firmware: ti_sci: rm: Remove ring_get_config support
  firmware: ti_sci: rm: Add support for extended_ch_type for tx channel
  soc: ti: ti_sci_inta_msi: Add support for second range in resource ranges
  ...

Link: https://lore.kernel.org/r/1606851405-26338-1-git-send-email-santosh.shilimkar@oracle.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-12-09 00:39:54 +01:00
Lukasz Luba 76ea4d8eee firmware: arm_scmi: Add power_scale_mw_get() interface
Add a new interface to the existing perf_ops and export the information
about the power values scale.

This would be used by the cpufreq driver and Energy Model framework to
set the performance domains scale: milli-Watts or abstract scale.

Suggested-by: Morten Rasmussen <morten.rasmussen@arm.com>
Reviewed-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Lukasz Luba <lukasz.luba@arm.com>
Acked-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2020-12-08 10:16:13 +05:30
Ard Biesheuvel 91c1c092f2 efi: capsule: use atomic kmap for transient sglist mappings
Don't use the heavy-weight kmap() API to create short-lived mappings
of the scatter-gather list entries that are released as soon as the
entries are written. Instead, use kmap_atomic(), which is more suited
to this purpose.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
2020-12-07 19:31:43 +01:00
David Brazdil 6df3e14436 psci: Add accessor for psci_0_1_function_ids
Make it possible to retrieve a copy of the psci_0_1_function_ids struct.
This is useful for KVM if it is configured to intercept host's PSCI SMCs.

Signed-off-by: David Brazdil <dbrazdil@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Link: https://lore.kernel.org/r/20201202184122.26046-7-dbrazdil@google.com
2020-12-04 08:44:24 +00:00
David Brazdil 82ac62d165 psci: Replace psci_function_id array with a struct
Small refactor that replaces array of v0.1 function IDs indexed by an
enum of function-name constants with a struct of function IDs "indexed"
by field names. This is done in preparation for exposing the IDs to
other parts of the kernel. Exposing a struct avoids the need for
bounds checking.

Signed-off-by: David Brazdil <dbrazdil@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Link: https://lore.kernel.org/r/20201202184122.26046-6-dbrazdil@google.com
2020-12-04 08:44:24 +00:00
David Brazdil 0bc7474fb7 psci: Split functions to v0.1 and v0.2+ variants
Refactor implementation of v0.1+ functions (CPU_SUSPEND, CPU_OFF,
CPU_ON, MIGRATE) to have two functions psci_0_1_foo / psci_0_2_foo that
select the function ID and call a common helper __psci_foo.

This is a small cleanup so that the function ID array is only used for
v0.1 configurations.

Signed-off-by: David Brazdil <dbrazdil@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Link: https://lore.kernel.org/r/20201202184122.26046-5-dbrazdil@google.com
2020-12-04 08:44:23 +00:00
David Brazdil e6dd9d89a6 psci: Support psci_ops.get_version for v0.1
KVM's host PSCI SMC filter needs to be aware of the PSCI version of the
system but currently it is impossible to distinguish between v0.1 and
PSCI disabled because both have get_version == NULL.

Populate get_version for v0.1 with a function that returns a constant.

psci_opt.get_version is currently unused so this has no effect on
existing functionality.

Signed-off-by: David Brazdil <dbrazdil@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Link: https://lore.kernel.org/r/20201202184122.26046-4-dbrazdil@google.com
2020-12-04 08:44:23 +00:00
Mark Rutland a0ccf2ba68 arm64: sdei: move uaccess logic to arch/arm64/
The SDEI support code is split across arch/arm64/ and drivers/firmware/,
largley this is split so that the arch-specific portions are under
arch/arm64, and the management logic is under drivers/firmware/.
However, exception entry fixups are currently under drivers/firmware.

Let's move the exception entry fixups under arch/arm64/. This
de-clutters the management logic, and puts all the arch-specific
portions in one place. Doing this also allows the fixups to be applied
earlier, so things like PAN and UAO will be in a known good state before
we run other logic. This will also make subsequent refactoring easier.

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Reviewed-by: James Morse <james.morse@arm.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20201202131558.39270-2-mark.rutland@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2020-12-02 19:46:14 +00:00
Borislav Petkov 15936ca13d Linux 5.10-rc6
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Merge tag 'v5.10-rc6' into ras/core

Merge the -rc6 tag to pick up dependent changes.

Signed-off-by: Borislav Petkov <bp@suse.de>
2020-12-01 18:22:55 +01:00
Liu Ying e00e70a4da firmware: imx: scu-pd: Add some power domains support for i.MX8qxp MIPI1 subsystem
This patch adds the main power domain, pwm0 power domain and i2c0/1
power domains support for i.MX8qxp MIPI1 subsystem.

Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Pengutronix Kernel Team <kernel@pengutronix.de>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: NXP Linux Team <linux-imx@nxp.com>
Signed-off-by: Liu Ying <victor.liu@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-11-30 17:47:18 +08:00
Liu Ying f57afc6f77 firmware: imx: scu-pd: Add main power domain support for i.MX8qxp LVDS1 subsystem
This patch adds the main power domain support for i.MX8qxp LVDS1 subsystem.

Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Pengutronix Kernel Team <kernel@pengutronix.de>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: NXP Linux Team <linux-imx@nxp.com>
Signed-off-by: Liu Ying <victor.liu@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-11-30 17:47:15 +08:00
Liu Ying 90ad8e0acd firmware: imx: scu-pd: Add video0/1 power domains support for i.MX8qxp DC0 subsystem
This patch adds video0/1 power domains support for i.MX8qxp DC0 subsystem.

Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Pengutronix Kernel Team <kernel@pengutronix.de>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: NXP Linux Team <linux-imx@nxp.com>
Signed-off-by: Liu Ying <victor.liu@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-11-30 17:46:57 +08:00
Greg Kroah-Hartman 3473065927 Merge 5.10-rc6 into char-misc-next
We need the fixes in here as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-30 08:33:06 +01:00
Linus Torvalds 1214917e00 More EFI fixes for v5.10-rc:
- revert efivarfs kmemleak fix again - it was a false positive;
 - make CONFIG_EFI_EARLYCON depend on CONFIG_EFI explicitly so it does not
   pull in other dependencies unnecessarily if CONFIG_EFI is not set
 - defer attempts to load SSDT overrides from EFI vars until after the
   efivar layer is up.
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Merge tag 'efi-urgent-for-v5.10-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull EFI fixes from Borislav Petkov:
 "More EFI fixes forwarded from Ard Biesheuvel:

   - revert efivarfs kmemleak fix again - it was a false positive

   - make CONFIG_EFI_EARLYCON depend on CONFIG_EFI explicitly so it does
     not pull in other dependencies unnecessarily if CONFIG_EFI is not
     set

   - defer attempts to load SSDT overrides from EFI vars until after the
     efivar layer is up"

* tag 'efi-urgent-for-v5.10-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  efi: EFI_EARLYCON should depend on EFI
  efivarfs: revert "fix memory leak in efivarfs_create()"
  efi/efivars: Set generic ops before loading SSDT
2020-11-29 10:18:53 -08:00
Arnd Bergmann 270a5bbb09 ARM SCMI updates for v5.11
Two main additions this time:
 1. Support for SCMI v3.0 sensor extensions
 2. Support for voltage domain management protocol added newly to SCMI v3.0
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Merge tag 'scmi-updates-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux into arm/drivers

ARM SCMI updates for v5.11

Two main additions this time:
1. Support for SCMI v3.0 sensor extensions
2. Support for voltage domain management protocol added newly to SCMI v3.0

* tag 'scmi-updates-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux:
  firmware: arm_scmi: Remove residual _le structs naming
  firmware: arm_scmi: Add SCMI v3.0 sensor notifications
  firmware: arm_scmi: Add SCMI v3.0 sensor configuration support
  firmware: arm_scmi: Add SCMI v3.0 sensors timestamped reads
  hwmon: (scmi) Update hwmon internal scale data type
  firmware: arm_scmi: Add support to enumerated SCMI voltage domain device
  firmware: arm_scmi: Add voltage domain management protocol support
  dt-bindings: arm: Add support for SCMI Regulators
  firmware: arm_scmi: Add SCMI v3.0 sensors descriptors extensions
  firmware: arm_scmi: Add full list of sensor type enumeration
  firmware: arm_scmi: Rework scmi_sensors_protocol_init
  firmware: arm_scmi: Fix missing destroy_workqueue()

Link: https://lore.kernel.org/r/20201124122412.22386-1-sudeep.holla@arm.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-11-27 21:06:06 +01:00
Arnd Bergmann 718e43b5f8 Linux 5.10-rc2
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Backmerge tag 'v5.10-rc2' into arm/drivers

The SCMI pull request for the arm/drivers branch requires v5.10-rc2
because of dependencies with other git trees, so merge that in here.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-11-27 21:04:53 +01:00
Geert Uytterhoeven 36a237526c efi: EFI_EARLYCON should depend on EFI
CONFIG_EFI_EARLYCON defaults to yes, and thus is enabled on systems that
do not support EFI, or do not have EFI support enabled, but do satisfy
the symbol's other dependencies.

While drivers/firmware/efi/ won't be entered during the build phase if
CONFIG_EFI=n, and drivers/firmware/efi/earlycon.c itself thus won't be
built, enabling EFI_EARLYCON does force-enable CONFIG_FONT_SUPPORT and
CONFIG_ARCH_USE_MEMREMAP_PROT, and CONFIG_FONT_8x16, which is
undesirable.

Fix this by making CONFIG_EFI_EARLYCON depend on CONFIG_EFI.

This reduces kernel size on headless systems by more than 4 KiB.

Fixes: 69c1f396f2 ("efi/x86: Convert x86 EFI earlyprintk into generic earlycon implementation")
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Link: https://lore.kernel.org/r/20201124191646.3559757-1-geert@linux-m68k.org
Reviewed-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
2020-11-25 16:55:02 +01:00
Amadeusz Sławiński 50bdcf0475 efi/efivars: Set generic ops before loading SSDT
Efivars allows for overriding of SSDT tables, however starting with
commit

  bf67fad19e ("efi: Use more granular check for availability for variable services")

this use case is broken. When loading SSDT generic ops should be set
first, however mentioned commit reversed order of operations. Fix this
by restoring original order of operations.

Fixes: bf67fad19e ("efi: Use more granular check for availability for variable services")
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Link: https://lore.kernel.org/r/20201123172817.124146-1-amadeuszx.slawinski@linux.intel.com
Tested-by: Cezary Rojewski <cezary.rojewski@intel.com>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
2020-11-25 16:55:02 +01:00