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Similar to speculation store bypass, show information about the indirect
branch speculation mode of a task in /proc/$pid/status.
For testing/benchmarking, I needed to see whether IB (Indirect Branch)
speculation (see Spectre-v2) is enabled on a task, to see whether an
IBPB instruction should be executed on an address space switch.
Unfortunately, this information isn't available anywhere else and
currently the only way to get it is to hack the kernel to expose it
(like this change). It also helped expose a bug with conditional IB
speculation on certain CPUs.
Another place this could be useful is to audit the system when using
sanboxing. With this change, I can confirm that seccomp-enabled
process have IB speculation force disabled as expected when the kernel
command line parameter `spectre_v2_user=seccomp`.
Since there's already a 'Speculation_Store_Bypass' field, I used that
as precedent for adding this one.
[amistry@google.com: remove underscores from field name to workaround documentation issue]
Link: https://lkml.kernel.org/r/20201106131015.v2.1.I7782b0cedb705384a634cfd8898eb7523562da99@changeid
Link: https://lkml.kernel.org/r/20201030172731.1.I7782b0cedb705384a634cfd8898eb7523562da99@changeid
Signed-off-by: Anand K Mistry <amistry@google.com>
Cc: Anthony Steinhauser <asteinhauser@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Anand K Mistry <amistry@google.com>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Alexey Gladkov <gladkov.alexey@gmail.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Kees Cook <keescook@chromium.org>
Cc: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: NeilBrown <neilb@suse.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI updates from Bjorn Helgaas:
"Enumeration:
- Decode PCIe 64 GT/s link speed (Gustavo Pimentel)
- Remove unused HAVE_PCI_SET_MWI (Heiner Kallweit)
- Reduce pci_set_cacheline_size() message to debug level (Heiner
Kallweit)
- Fix pci_slot_release() NULL pointer dereference (Jubin Zhong)
- Unify ECAM constants in native PCI Express drivers (Krzysztof
Wilczyński)
- Return u8 from pci_find_capability() and similar (Puranjay Mohan)
- Return u16 from pci_find_ext_capability() and similar (Bjorn
Helgaas)
- Fix ACPI companion lookup for device 0 on the root bus (Rafael J.
Wysocki)
Resource management:
- Keep both device and resource name for config space remaps
(Alexander Lobakin)
- Bounds-check command-line resource alignment requests (Bjorn
Helgaas)
- Fix overflow in command-line resource alignment requests (Colin Ian
King)
Driver binding:
- Avoid duplicate IDs in driver dynamic IDs list (Zhenzhong Duan)
Power management:
- Save/restore Precision Time Measurement Capability for
suspend/resume (David E. Box)
- Disable PTM during suspend to save power (David E. Box)
- Add sysfs attribute for device power state (Maximilian Luz)
- Rename pci_wakeup_bus() to pci_resume_bus() (Mika Westerberg)
- Do not generate wakeup event when runtime resuming device (Mika
Westerberg)
- Save/restore ASPM L1SS Capability for suspend/resume (Vidya Sagar)
Virtualization:
- Mark AMD Raven iGPU ATS as broken in some platforms (Alex Deucher)
- Add function 1 DMA alias quirk for Marvell 9215 SATA controller
(Bjorn Helgaas)
MSI:
- Disable MSI for Pericom PCIe-USB adapter (Andy Shevchenko)
- Improve warnings for 32-bit-limited MSI support (Vidya Sagar)
Error handling:
- Cache RCEC EA Capability offset in pci_init_capabilities() (Sean V
Kelley)
- Rename reset_link() to reset_subordinates() (Sean V Kelley)
- Write AER Capability only when we control it (Sean V Kelley)
- Clear AER status only when we control AER (Sean V Kelley)
- Bind RCEC devices to the Root Port driver (Qiuxu Zhuo)
- Recover from RCiEP AER errors (Qiuxu Zhuo)
- Recover from RCEC AER errors (Sean V Kelley)
- Add pcie_link_rcec() to associate RCiEPs (Sean V Kelley)
- Add pcie_walk_rcec() to RCEC AER handling (Sean V Kelley)
- Add pcie_walk_rcec() to RCEC PME handling (Sean V Kelley)
- Add RCEC AER error injection support (Qiuxu Zhuo)
Broadcom iProc PCIe controller driver:
- Fix out-of-bound array accesses (Bharat Gooty)
- Invalidate correct PAXB inbound windows (Roman Bacik)
- Enhance PCIe Link information display (Srinath Mannam)
Cadence PCIe controller driver:
- Make "cdns,max-outbound-regions" property optional (Kishon Vijay
Abraham I)
Intel VMD host bridge driver:
- Offset client MSI-X vectors (Jon Derrick)
- Update type of __iomem pointers (Krzysztof Wilczyński)
NVIDIA Tegra PCIe controller driver:
- Move "dbi" accesses to post common DWC initialization (Vidya Sagar)
- Read "dbi" base address to program in application logic (Vidya
Sagar)
- Fix ASPM-L1SS advertisement disable code (Vidya Sagar)
- Set DesignWare IP version (Vidya Sagar)
- Continue unconfig sequence even if parts fail (Vidya Sagar)
- Check return value of tegra_pcie_init_controller() (Vidya Sagar)
- Disable LTSSM during L2 entry (Vidya Sagar)
Qualcomm PCIe controller driver:
- Document PCIe bindings for SM8250 SoC (Manivannan Sadhasivam)
- Add SM8250 SoC support (Manivannan Sadhasivam)
- Add support for configuring BDF to SID mapping for SM8250
(Manivannan Sadhasivam)
Renesas R-Car PCIe controller driver:
- rcar: Drop unused members from struct rcar_pcie_host (Lad
Prabhakar)
- PCI: rcar-pci-host: Document r8a774e1 bindings (Lad Prabhakar)
- PCI: rcar-pci-host: Convert bindings to json-schema (Yoshihiro
Shimoda)
- PCI: rcar-pci-host: Document r8a77965 bindings (Yoshihiro Shimoda)
Samsung Exynos PCIe controller driver:
- Rework driver to support Exynos5433 PCIe PHY (Jaehoon Chung)
- Rework driver to support Exynos5433 variant (Jaehoon Chung)
- Drop samsung,exynos5440-pcie binding (Marek Szyprowski)
- Add the samsung,exynos-pcie binding (Marek Szyprowski)
- Add the samsung,exynos-pcie-phy binding (Marek Szyprowski)
Synopsys DesignWare PCIe controller driver:
- Support multiple ATU memory regions (Rob Herring)
- Move intel-gw ATU offset out of driver match data (Rob Herring)
- Move "dbi", "dbi2", and "addr_space" resource setup into common
code (Rob Herring)
- Remove intel-gw unneeded function wrappers (Rob Herring)
- Ensure all outbound ATU windows are reset (Rob Herring)
- Use the common MSI irq_chip in dra7xx (Rob Herring)
- Drop the .set_num_vectors() host op (Rob Herring)
- Move MSI interrupt setup into DWC common code (Rob Herring)
- Rework MSI initialization (Rob Herring)
- Move link handling into common code (Rob Herring)
- Move dw_pcie_msi_init() into core (Rob Herring)
- Move dw_pcie_setup_rc() to DWC common code (Rob Herring)
- Remove unnecessary wrappers around dw_pcie_host_init() (Rob
Herring)
- Drop keystone duplicated 'num-viewport'" (Rob Herring)
- Move inbound and outbound windows to common struct (Rob Herring)
- Detect number of iATU windows (Rob Herring)
- Warn if non-prefetchable memory aperture size is > 32-bit (Vidya
Sagar)
- Add support to program ATU for >4GB memory (Vidya Sagar)
- Set 32-bit DMA mask for MSI target address allocation (Vidya Sagar)
TI J721E PCIe driver:
- Fix "ti,syscon-pcie-ctrl" to take argument (Kishon Vijay Abraham I)
- Add host mode dt-bindings for TI's J7200 SoC (Kishon Vijay Abraham
I)
- Add EP mode dt-bindings for TI's J7200 SoC (Kishon Vijay Abraham I)
- Get offset within "syscon" from "ti,syscon-pcie-ctrl" phandle arg
(Kishon Vijay Abraham I)
TI Keystone PCIe controller driver:
- Enable compile-testing on !ARM (Alex Dewar)"
* tag 'pci-v5.11-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (100 commits)
PCI: Add function 1 DMA alias quirk for Marvell 9215 SATA controller
PCI/ACPI: Fix companion lookup for device 0 on the root bus
PCI: Keep both device and resource name for config space remaps
PCI: xgene: Removed unused ".bus_shift" initialisers from pci-xgene.c
PCI: vmd: Update type of the __iomem pointers
PCI: iproc: Convert to use the new ECAM constants
PCI: thunder-pem: Add constant for custom ".bus_shift" initialiser
PCI: Unify ECAM constants in native PCI Express drivers
PCI: Disable PTM during suspend to save power
PCI/PTM: Save/restore Precision Time Measurement Capability for suspend/resume
PCI: Mark AMD Raven iGPU ATS as broken in some platforms
PCI: j721e: Get offset within "syscon" from "ti,syscon-pcie-ctrl" phandle arg
dt-bindings: PCI: Add EP mode dt-bindings for TI's J7200 SoC
dt-bindings: PCI: Add host mode dt-bindings for TI's J7200 SoC
dt-bindings: pci: ti,j721e: Fix "ti,syscon-pcie-ctrl" to take argument
PCI: dwc: Set 32-bit DMA mask for MSI target address allocation
PCI: qcom: Add support for configuring BDF to SID mapping for SM8250
PCI: Reduce pci_set_cacheline_size() message to debug level
PCI: Remove unused HAVE_PCI_SET_MWI
PCI: qcom: Add SM8250 SoC support
...
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- Convert DT bindings to json-schema (Yoshihiro Shimoda)
- Document r8a77965 DT bindings (Yoshihiro Shimoda)
- Document r8a774e1 DT bindings (Lad Prabhakar)
* remotes/lorenzo/pci/rcar:
dt-bindings: PCI: rcar-pci-host: Document r8a774e1 bindings
dt-bindings: PCI: rcar-pci-host: Document r8a77965 bindings
dt-bindings: PCI: rcar-pci-host: Convert bindings to json-schema
PCI: rcar: Drop unused members from struct rcar_pcie_host
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Document the RZ/G2H (a.k.a. R8A774E1) SoC in the R-Car PCIe bingings.
[shimoda: minor change the subject and description]
Link: https://lore.kernel.org/r/1604455096-13923-4-git-send-email-yoshihiro.shimoda.uh@renesas.com
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Marian-Cristian Rotariu <marian-cristian.rotariu.rb@bp.renesas.com>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Acked-by: Rob Herring <robh@kernel.org>
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Document the R-Car M3-N (R8A77965) SoC in the R-Car PCIe bindings.
Link: https://lore.kernel.org/r/1604455096-13923-3-git-send-email-yoshihiro.shimoda.uh@renesas.com
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Rob Herring <robh@kernel.org>
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Convert Renesas PCIe Host controller bindings documentation to
json-schema. Note that some compatible doesn't contain on
the original documentation so that incremental patches are required
for it.
Link: https://lore.kernel.org/r/1604455096-13923-2-git-send-email-yoshihiro.shimoda.uh@renesas.com
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Rob Herring <robh@kernel.org>
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- Support multiple ATU memory regions (Rob Herring)
- Warn if non-prefetchable memory aperture is > 32-bit (Vidya Sagar)
- Allow programming ATU for >4GB memory (Vidya Sagar)
- Move ATU offset out of driver match data (Rob Herring)
- Move "dbi", "dbi2", and "addr_space" resource setup to common code (Rob
Herring)
- Remove unneeded function wrappers (Rob Herring)
- Ensure all outbound ATU windows are reset to reduce dependencies on
bootloader (Rob Herring)
- Use the default MSI irq_chip for dra7xx (Rob Herring)
- Drop the .set_num_vectors() host op (Rob Herring)
- Move MSI interrupt setup into DWC common code (Rob Herring)
- Rework and simplify DWC MSI initialization (Rob Herring)
- Move link handling to DWC common code (Rob Herring)
- Move dw_pcie_msi_init() calls to DWC common code (Rob Herring)
- Move dw_pcie_setup_rc() calls to DWC common code (Rob Herring)
- Remove unnecessary wrappers around dw_pcie_host_init() (Rob Herring)
- Revert "keystone: Drop duplicated 'num-viewport'" to prepare for
detecting number of iATU regions without help from DT (Rob Herring)
- Move inbound and outbound windows to common struct (Rob Herring)
- Detect number of DWC iATU windows from device registers (Rob Herring)
- Drop samsung,exynos5440-pcie binding (Marek Szyprowski)
- Add samsung,exynos-pcie and samsung,exynos-pcie-phy bindings for
Exynos5433 variant (Marek Szyprowski)
- Rework phy-exynos-pcie driver to support Exynos5433 PCIe PHY (Jaehoon
Chung)
- Rework pci-exynos.c to support Exynos5433 PCIe host (Jaehoon Chung)
- Move tegra "dbi" accesses to post common DWC initialization (Vidya Sagar)
- Read tegra dbi" base address in application logic (Vidya Sagar)
- Fix tegra ASPM-L1SS advertisement disable code (Vidya Sagar)
- Set Tegra194 DesignWare IP version to 0x490A (Vidya Sagar)
- Continue tegra unconfig sequence even if parts fail (Vidya Sagar)
- Check return value of tegra_pcie_init_controller() (Vidya Sagar)
- Disable tegra LTSSM during L2 entry (Vidya Sagar)
- Add SM8250 SoC PCIe DT bindings and support (Manivannan Sadhasivam)
- Add SM8250 BDF to SID mapping (Manivannan Sadhasivam)
- Set 32-bit DMA mask for DWC MSI target address allocation (Vidya Sagar)
* remotes/lorenzo/pci/dwc:
PCI: dwc: Set 32-bit DMA mask for MSI target address allocation
PCI: qcom: Add support for configuring BDF to SID mapping for SM8250
PCI: qcom: Add SM8250 SoC support
dt-bindings: pci: qcom: Document PCIe bindings for SM8250 SoC
PCI: tegra: Disable LTSSM during L2 entry
PCI: tegra: Check return value of tegra_pcie_init_controller()
PCI: tegra: Continue unconfig sequence even if parts fail
PCI: tegra: Set DesignWare IP version
PCI: tegra: Fix ASPM-L1SS advertisement disable code
PCI: tegra: Read "dbi" base address to program in application logic
PCI: tegra: Move "dbi" accesses to post common DWC initialization
PCI: dwc: exynos: Rework the driver to support Exynos5433 variant
phy: samsung: phy-exynos-pcie: rework driver to support Exynos5433 PCIe PHY
dt-bindings: phy: exynos: add the samsung,exynos-pcie-phy binding
dt-bindings: PCI: exynos: add the samsung,exynos-pcie binding
dt-bindings: PCI: exynos: drop samsung,exynos5440-pcie binding
PCI: dwc: Detect number of iATU windows
PCI: dwc: Move inbound and outbound windows to common struct
Revert "PCI: dwc/keystone: Drop duplicated 'num-viewport'"
PCI: dwc: Remove unnecessary wrappers around dw_pcie_host_init()
PCI: dwc: Move dw_pcie_setup_rc() to DWC common code
PCI: dwc: Move dw_pcie_msi_init() into core
PCI: dwc: Move link handling into common code
PCI: dwc: Rework MSI initialization
PCI: dwc: Move MSI interrupt setup into DWC common code
PCI: dwc: Drop the .set_num_vectors() host op
PCI: dwc/dra7xx: Use the common MSI irq_chip
PCI: dwc: Ensure all outbound ATU windows are reset
PCI: dwc/intel-gw: Remove some unneeded function wrappers
PCI: dwc: Move "dbi", "dbi2", and "addr_space" resource setup into common code
PCI: dwc/intel-gw: Move ATU offset out of driver match data
PCI: dwc: Add support to program ATU for >4GB memory
PCI: of: Warn if non-prefetchable memory aperture size is > 32-bit
PCI: dwc: Support multiple ATU memory regions
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Document the PCIe DT bindings for SM8250 SoC. The PCIe IP is similar to
the one used on SDM845, hence just add the compatible along with the
optional "atu" register region.
Link: https://lore.kernel.org/r/20201208121402.178011-2-mani@kernel.org
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
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Add dt-bindings for the Samsung Exynos PCIe PHY controller (Exynos5433
variant). Based on the text dt-binding posted by Jaehoon Chung.
Link: https://lore.kernel.org/r/20201113170139.29956-4-m.szyprowski@samsung.com
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Rob Herring <robh@kernel.org>
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Add dt-bindings for the Samsung Exynos PCIe controller (Exynos5433
variant). Based on the text dt-binding posted by Jaehoon Chung.
Link: https://lore.kernel.org/r/20201113170139.29956-3-m.szyprowski@samsung.com
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Rob Herring <robh@kernel.org>
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Exynos5440 SoC support has been dropped since commit 8c83315da1cf ("ARM:
dts: exynos: Remove Exynos5440"). Drop the obsolete bindings for
exynos5440-pcie.
Link: https://lore.kernel.org/r/20201113170139.29956-2-m.szyprowski@samsung.com
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Jingoo Han <jingoohan1@gmail.com>
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- Make "cdns,max-outbound-regions" optional (Kishon Vijay Abraham I)
- Fix "ti,syscon-pcie-ctrl" DT property to take argument (Kishon Vijay
Abraham I)
- Add TI J7200 host and endpoint mode DT bindings (Kishon Vijay Abraham I)
* remotes/lorenzo/pci/cadence:
PCI: j721e: Get offset within "syscon" from "ti,syscon-pcie-ctrl" phandle arg
dt-bindings: PCI: Add EP mode dt-bindings for TI's J7200 SoC
dt-bindings: PCI: Add host mode dt-bindings for TI's J7200 SoC
dt-bindings: pci: ti,j721e: Fix "ti,syscon-pcie-ctrl" to take argument
PCI: cadence: Do not error if "cdns,max-outbound-regions" is not found
dt-bindings: PCI: Make "cdns,max-outbound-regions" optional property
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Add PCIe EP mode dt-bindings for TI's J7200 SoC.
Link: https://lore.kernel.org/r/20201210124917.24185-4-kishon@ti.com
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Rob Herring <robh@kernel.org>
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Add host mode dt-bindings for TI's J7200 SoC.
Link: https://lore.kernel.org/r/20201210124917.24185-3-kishon@ti.com
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Rob Herring <robh@kernel.org>
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Fix binding documentation of "ti,syscon-pcie-ctrl" to take phandle with
argument. The argument is the register offset within "syscon" used to
configure PCIe controller. This change is as discussed in [1]
[1] -> http://lore.kernel.org/r/CAL_JsqKiUcO76bo1GoepWM1TusJWoty_BRy2hFSgtEVMqtrvvQ@mail.gmail.com
Link: https://lore.kernel.org/r/20201210124917.24185-2-kishon@ti.com
Fixes: 431b53b81cdc ("dt-bindings: PCI: Add host mode dt-bindings for TI's J721E SoC")
Fixes: 45b39e928966 ("dt-bindings: PCI: Add EP mode dt-bindings for TI's J721E SoC")
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Rob Herring <robh@kernel.org>
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Make "cdns,max-outbound-regions" optional property with the default
being 32.
Link: http://lore.kernel.org/r/20201105165331.GA55814@bogus
Link: https://lore.kernel.org/r/20201106151107.3987-2-kishon@ti.com
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Rob Herring <robh@kernel.org>
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While PCI power states D0-D3hot can be queried from user-space via lspci,
D3cold cannot. lspci cannot provide an accurate value when the device is
in D3cold as it has to restore the device to D0 before it can access its
power state via the configuration space, leading to it reporting D0 or
another on-state. Thus lspci cannot be used to diagnose power consumption
issues for devices that can enter D3cold or to ensure that devices properly
enter D3cold at all.
Add a new sysfs device attribute for the PCI power state, showing the
current power state as seen by the kernel.
[bhelgaas: drop READ_ONCE(), see discussion at the link]
Link: https://lore.kernel.org/r/20201102141520.831630-1-luzmaximilian@gmail.com
Signed-off-by: Maximilian Luz <luzmaximilian@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI updates from Rafael Wysocki:
"These update the ACPICA code in the kernel to upstream revision
20201113, fix and clean up some resources manipulation code, extend
the enumeration and gpio-line-names property documentation, clean up
the handling of _DEP during device enumeration, add a new backlight
DMI quirk, clean up transaction handling in the EC driver and make
some assorted janitorial changes.
Specifics:
- Update ACPICA code in the kernel to upstream revision 20201113 with
changes as follows:
* Add 5 new UUIDs to the known UUID table (Bob Moore)
* Remove extreaneous "the" in comments (Colin Ian King)
* Add function trace macros to improve debugging (Erik Kaneda)
* Fix interpreter memory leak (Erik Kaneda)
* Handle "orphan" _REG for GPIO OpRegions (Hans de Goede)
- Introduce resource_union() and resource_intersection() helpers and
clean up some resource-manipulation code with the help of them
(Andy Shevchenko)
- Revert problematic commit related to the handling of resources in
the ACPI core (Daniel Scally)
- Extend the ACPI device enumeration documentation and the
gpio-line-names _DSD property documentation, clean up the latter
(Flavio Suligoi)
- Clean up _DEP handling during device enumeration, modify the list
of _DEP exceptions and the handling of it and fix up terminology
related to _DEP (Hans de Goede, Rafael Wysocki)
- Eliminate in_interrupt() usage from the ACPI EC driver (Sebastian
Andrzej Siewior)
- Clean up the advance_transaction() routine and related code in the
ACPI EC driver (Rafael Wysocki)
- Add new backlight quirk for GIGABYTE GB-BXBT-2807 (Jasper St
Pierre)
- Make assorted janitorial changes in several ACPI-related pieces of
code (Hanjun Guo, Jason Yan, Punit Agrawal)"
* tag 'acpi-5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (40 commits)
ACPI: scan: Fix up _DEP-related terminology with supplier/consumer
ACPI: scan: Drop INT3396 from acpi_ignore_dep_ids[]
ACPI: video: Add DMI quirk for GIGABYTE GB-BXBT-2807
Revert "ACPI / resources: Use AE_CTRL_TERMINATE to terminate resources walks"
ACPI: scan: Add PNP0D80 to the _DEP exceptions list
ACPI: scan: Call acpi_get_object_info() from acpi_add_single_object()
ACPI: scan: Add acpi_info_matches_hids() helper
ACPICA: Update version to 20201113
ACPICA: Interpreter: fix memory leak by using existing buffer
ACPICA: Add function trace macros to improve debugging
ACPICA: Also handle "orphan" _REG methods for GPIO OpRegions
ACPICA: Remove extreaneous "the" in comments
ACPICA: Add 5 new UUIDs to the known UUID table
resource: provide meaningful MODULE_LICENSE() in test suite
ASoC: Intel: catpt: Replace open coded variant of resource_intersection()
ACPI: processor: Drop duplicate setting of shared_cpu_map
ACPI: EC: Clean up status flags checks in advance_transaction()
ACPI: EC: Untangle error handling in advance_transaction()
ACPI: EC: Simplify error handling in advance_transaction()
ACPI: EC: Rename acpi_ec_is_gpe_raised()
...
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* acpi-resources:
Revert "ACPI / resources: Use AE_CTRL_TERMINATE to terminate resources walks"
resource: provide meaningful MODULE_LICENSE() in test suite
ASoC: Intel: catpt: Replace open coded variant of resource_intersection()
ACPI: watchdog: Replace open coded variant of resource_union()
PCI/ACPI: Replace open coded variant of resource_union()
resource: Add test cases for new resource API
resource: Introduce resource_intersection() for overlapping resources
resource: Introduce resource_union() for overlapping resources
resource: Group resource_overlaps() with other inline helpers
resource: Simplify region_intersects() by reducing conditionals
* acpi-docs:
Documentation: ACPI: enumeration: add PCI hierarchy representation
Documentation: ACPI: _DSD: enable hyperlink in final references
Documentation: ACPI: explain how to use gpio-line-names
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For "fixed" PCI devices, such as chips directly soldered
on the main board (ethernet, Wi-Fi, serial ports, etc.),
it is possible to find an ACPI enumeration.
This allows to add useful properties to these devices.
Just for an example: the property "gpio-line-names" can be
added to the pins of a GPIO expander on the PCI bus.
In order to find the ACPI name of a PCI device, it's necessary
to disassemble the BIOS ACPI tables (in particular the DSDT)
and also to analyze the PCI bus topology of the board.
This patch, with a practical example, show how to do this.
Signed-off-by: Flavio Suligoi <f.suligoi@asem.it>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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For inline web links, no special markup is needed.
Signed-off-by: Flavio Suligoi <f.suligoi@asem.it>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
[ rjw: Subject edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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The "gpio-line-names" declaration is not fully
documented, so can be useful to add some important
information and one more example.
Signed-off-by: Flavio Suligoi <f.suligoi@asem.it>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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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
...
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* pm-devfreq:
PM / devfreq: tegra30: Separate configurations per-SoC generation
PM / devfreq: tegra30: Support interconnect and OPPs from device-tree
PM / devfreq: tegra20: Deprecate in a favor of emc-stat based driver
PM / devfreq: exynos-bus: Add registration of interconnect child device
dt-bindings: devfreq: Add documentation for the interconnect properties
soc/tegra: fuse: Add stub for tegra_sku_info
soc/tegra: fuse: Export tegra_read_ram_code()
clk: tegra: Export Tegra20 EMC kernel symbols
PM / devfreq: tegra30: Silence deferred probe error
PM / devfreq: tegra20: Relax Kconfig dependency
PM / devfreq: tegra20: Silence deferred probe error
PM / devfreq: Remove redundant governor_name from struct devfreq
PM / devfreq: Add governor attribute flag for specifc sysfs nodes
PM / devfreq: Add governor feature flag
PM / devfreq: Add tracepoint for frequency changes
PM / devfreq: Unify frequency change to devfreq_update_target func
trace: events: devfreq: Use fixed indentation size to improve readability
* pm-tools:
pm-graph v5.8
cpupower: Provide online and offline CPU information
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git://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/linux
Pull devfreq updates for 5.11 from Chanwoo Choi:
1. Update devfreq core
- Add new devfreq_frequency tracepoint to show the frequency change
information.
- Add governor feature flag. The devfreq governor is able to set the
specific flag in order to support a non-common feature. For
example, if the governor supports the 'immutable' feature, don't
allow user space to change the governor via sysfs.
- Add governor sysfs attribute flag for each sysfs file. Prior to that
the devfreq subsystem allowed all of the sysfs files to be accessed
regardless of the governor type. But some sysfs fils are not
supported by specific devfreq governors. In order to only allow the
sysfs files supported by the governor to be accessed, clarify the
access permissions of sysfs attributes according to the governor.
When adding the devfreq governor, specify the available attribute
information by using DEVFREQ_GOV_ATTR_* symbols. The user can read
or write the sysfs attributes in accordance to the specified
access permissions.
- Clean-up the code to reduce duplication for the devfreq tracepoint
and to remove redundant governor_name field from struct devfreq.
2. Update exynos-bus.c devfreq driver
- Add interconnect API support to the Samsung Exynos Bus Frequency
driver, exynos-bus.c. Complementing the devfreq driver with
interconnect functionality allows to ensure that the QoS
requirements regarding devices accessing the system memory (e.g.
video processing devices) will be met and allows to avoid issues
like DMA underrun.
3. Update tegra devfreq driver
- Add interconnect support and OPP interface to tegra30-devfreq.c.
Also, it is to guarantee the QoS requirement of some devices like
the display controller.
- Move tegra20-devfreq.c from drivers/devfreq/ into drivers/memory/tegra/
in order to use the more proper monitoring feature such as EMC_STAT
which is located in drivers/memory/tegra/.
- Separate the configuration information for different SoCs in
tegra30-devfrqe.c. The tegra30-devfreq.c had been supporting both
tegra30-actmon and tegra124-actmon devices. In order to use the
more correct configuration data, separate them.
- Use dev_err_probe() to handle the deferred probe error in
tegra30-devfreq.c.
4. Pull the request of 'Tegra SoC and clock controller changes for
v5.11' sent by Krzysztof Kozlowski <krzk@kernel.org> in order to
avoid a build error."
* tag 'devfreq-next-for-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/linux:
PM / devfreq: tegra30: Separate configurations per-SoC generation
PM / devfreq: tegra30: Support interconnect and OPPs from device-tree
PM / devfreq: tegra20: Deprecate in a favor of emc-stat based driver
PM / devfreq: exynos-bus: Add registration of interconnect child device
dt-bindings: devfreq: Add documentation for the interconnect properties
soc/tegra: fuse: Add stub for tegra_sku_info
soc/tegra: fuse: Export tegra_read_ram_code()
clk: tegra: Export Tegra20 EMC kernel symbols
PM / devfreq: tegra30: Silence deferred probe error
PM / devfreq: tegra20: Relax Kconfig dependency
PM / devfreq: tegra20: Silence deferred probe error
PM / devfreq: Remove redundant governor_name from struct devfreq
PM / devfreq: Add governor attribute flag for specifc sysfs nodes
PM / devfreq: Add governor feature flag
PM / devfreq: Add tracepoint for frequency changes
PM / devfreq: Unify frequency change to devfreq_update_target func
trace: events: devfreq: Use fixed indentation size to improve readability
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Add documentation for new optional properties in the exynos bus nodes:
interconnects, #interconnect-cells, samsung,data-clock-ratio.
These properties allow to specify the SoC interconnect structure which
then allows the interconnect consumer devices to request specific
bandwidth requirements.
Acked-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Tested-by: Chanwoo Choi <cw00.choi@samsung.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Artur Świgoń <a.swigon@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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DEVFREQ supports the default governors like performance, simple_ondemand and
also allows the devfreq driver to add their own governor like tegra30-devfreq.c
according to their requirement. In result, some sysfs attributes are useful
or not useful. Prior to that the user can access all sysfs attributes
regardless of the available attributes.
So, clarify the access permission of sysfs attributes according to governor.
When adding the devfreq governor, can specify the available attribute
information by using DEVFREQ_GOV_ATTR_* constant variable. The user can
read or write the sysfs attributes in accordance to the specified attributes.
When adding the governor, can add the following attributes
according to the governor feature.
[Definition for speific sysfs attributes]
- DEVFREQ_GOV_ATTR_POLLING_INTERVAL to update polling interval for timer.
: /sys/class/devfreq/[devfreq dev name]/polling_interval
- DEVFREQ_GOV_ATTR_TIMER to change the type of timer on either deferrable
or dealyed timer.
: /sys/class/devfreq/[devfreq dev name]/timer
And all devfreq governors have to support the following common attributes.
The common attributes are added to devfreq class by default.
- governor
- available_governors
- available_frequencies
- cur_freq
- target_freq
- min_freq
- max_freq
- trans_stat
[Table of governor attribute flags for devfreq governors]
------------------------------------------------------------------------------
| simple | perfor | power | user | passive | tegra30
| ondemand | mance | save | space| |
------------------------------------------------------------------------------
governor | O | O | O | O | O | O
available_governors | O | O | O | O | O | O
available_frequencies | O | O | O | O | O | O
cur_freq | O | O | O | O | O | O
target_freq | O | O | O | O | O | O
min_freq | O | O | O | O | O | O
max_freq | O | O | O | O | O | O
trans_stat | O | O | O | O | O | O
--------------------------------------------------------
polling_interval | O | X | X | X | X | O
timer | O | X | X | X | X | X
------------------------------------------------------------------------------
Reviewed-by: Dmitry Osipenko <digetx@gmail.com>
Tested-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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* pm-cpuidle:
cpuidle: Select polling interval based on a c-state with a longer target residency
cpuidle: psci: Enable suspend-to-idle for PSCI OSI mode
PM: domains: Enable dev_pm_genpd_suspend|resume() for suspend-to-idle
PM: domains: Rename pm_genpd_syscore_poweroff|poweron()
* pm-em:
PM / EM: Micro optimization in em_cpu_energy
PM: EM: Update Energy Model with new flag indicating power scale
PM: EM: update the comments related to power scale
PM: EM: Clarify abstract scale usage for power values in Energy Model
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Update description and meaning of a new flag, which indicates the type of
power scale used for a registered Energy Model (EM) device.
Reviewed-by: Quentin Perret <qperret@google.com>
Signed-off-by: Lukasz Luba <lukasz.luba@arm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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The Energy Model (EM) can store power values in milli-Watts or in abstract
scale. This might cause issues in the subsystems which use the EM for
estimating the device power, such as:
- mixing of different scales in a subsystem which uses multiple
(cooling) devices (e.g. thermal Intelligent Power Allocation (IPA))
- assuming that energy [milli-Joules] can be derived from the EM power
values which might not be possible since the power scale doesn't have
to be in milli-Watts
To avoid misconfiguration add the requisite documentation to the EM and
related subsystems: EAS and IPA.
Signed-off-by: Lukasz Luba <lukasz.luba@arm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm
Pull OPP (Operating Performance Points) updates for 5.11-rc1 from
Viresh Kumar:
"This contains the following updates:
- Allow empty (node-less) OPP tables in DT for passing just the
dependency related information (Nicola Mazzucato).
- Fix a potential lockdep in OPP core and other OPP core cleanups
(Viresh Kumar).
- Don't abuse dev_pm_opp_get_opp_table() to create an OPP table, fix
cpufreq-dt driver for the same (Viresh Kumar).
- dev_pm_opp_put_regulators() accepts a NULL argument now, updates to
all the users as well (Viresh Kumar)."
* 'opp/linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm:
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()
opp: Don't return opp_dev from _find_opp_dev()
opp: Allocate the OPP table outside of opp_table_lock
opp: Always add entries in dev_list with opp_table->lock held
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Currently the optional property opp-shared is used within an opp table
to tell that a set of devices share their clock/voltage lines (and the
OPP points).
It is therefore possible to use an empty OPP table to convey only that
information, useful in situations where the opp points are provided via
other means (hardware. firmware, etc).
Update the documentation to remark this additional case and provide an
example.
Signed-off-by: Nicola Mazzucato <nicola.mazzucato@arm.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux
Pull thermal updates from Daniel Lezcano:
- Add upper and lower limits clamps for the cooling device state in the
power allocator governor (Michael Kao)
- Add upper and lower limits support for the power allocator governor
(Lukasz Luba)
- Optimize conditions testing for the trip points (Bernard Zhao)
- Replace spin_lock_irqsave by spin_lock in hard IRQ on the rcar driver
(Tian Tao)
- Add MT8516 dt-bindings and device reset optional support (Fabien
Parent)
- Add a quiescent period to cool down the PCH when entering S0iX
(Sumeet Pawnikar)
- Use bitmap API instead of re-inventing the wheel on sun8i (Yangtao
Li)
- Remove useless NULL check in the hwmon driver (Bernard Zhao)
- Update the current state in the cpufreq cooling device only if the
frequency change is effective (Zhuguangqing)
- Improve the schema validation for the rcar DT bindings (Geert
Uytterhoeven)
- Fix the user time unit in the documentation (Viresh Kumar)
- Add PCI ids for Lewisburg PCH (Andres Freund)
- Add hwmon support on amlogic (Martin Blumenstingl)
- Fix build failure for PCH entering on in S0iX (Randy Dunlap)
- Improve the k_* coefficient for the power allocator governor (Lukasz
Luba)
- Fix missing const on a sysfs attribute (Rikard Falkeborn)
- Remove broken interrupt support on rcar to be replaced by a new one
(Niklas Söderlund)
- Improve the error code handling at init time on imx8mm (Fabio
Estevam)
- Compute interval validity once instead at each temperature reading
iteration on acerhdf (Daniel Lezcano)
- Add r8a779a0 support (Niklas Söderlund)
- Add PCI ids for AlderLake PCH and mmio refactoring (Srinivas
Pandruvada)
- Add RFIM and mailbox support on int340x (Srinivas Pandruvada)
- Use macro for temperature calculation on PCH (Sumeet Pawnikar)
- Simplify return conditions at probe time on Broadcom (Zheng Yongjun)
- Fix workload name on PCH (Srinivas Pandruvada)
- Migrate the devfreq cooling device code to the energy model API
(Lukasz Luba)
- Emit a warning if the thermal_zone_device_update is called without
the .get_temp() ops (Daniel Lezcano)
- Add critical and hot ops for the thermal zone (Daniel Lezcano)
- Remove notification usage when critical is reached on rcar (Daniel
Lezcano)
- Fix devfreq build when ENERGY_MODEL is not set (Lukasz Luba)
* tag 'thermal-v5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux: (45 commits)
thermal/drivers/devfreq_cooling: Fix the build when !ENERGY_MODEL
thermal/drivers/rcar: Remove notification usage
thermal/core: Add critical and hot ops
thermal/core: Emit a warning if the thermal zone is updated without ops
drm/panfrost: Register devfreq cooling and attempt to add Energy Model
thermal: devfreq_cooling: remove old power model and use EM
thermal: devfreq_cooling: add new registration functions with Energy Model
thermal: devfreq_cooling: use a copy of device status
thermal: devfreq_cooling: change tracing function and arguments
thermal: int340x: processor_thermal: Correct workload type name
thermal: broadcom: simplify the return expression of bcm2711_thermal_probe()
thermal: intel: pch: use macro for temperature calculation
thermal: int340x: processor_thermal: Add mailbox driver
thermal: int340x: processor_thermal: Add RFIM driver
thermal: int340x: processor_thermal: Add AlderLake PCI device id
thermal: int340x: processor_thermal: Refactor MMIO interface
thermal: rcar_gen3_thermal: Add r8a779a0 support
dt-bindings: thermal: rcar-gen3-thermal: Add r8a779a0 support
platform/x86/drivers/acerhdf: Check the interval value when it is set
platform/x86/drivers/acerhdf: Use module_param_cb to set/get polling interval
...
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Add support for R-Car V3U. The V3U IP differs a bit from its siblings in
such way that it have 4 TSC nodes and the interrupts are not routed to
the INTC-AP but to the ECM.
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20201126223028.3119044-2-niklas.soderlund+renesas@ragnatech.se
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The sysfs stats for cooling devices shows the time_in_state in msec,
remove the unwanted usertime comment.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/d5461bdf9ab6b6fee7f28f538582edbb426aa077.1605004905.git.viresh.kumar@linaro.org
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- Factor out common required properties,
- "interrupts", "clocks", and "power-domains" are required on R-Mobile
APE6, too,
- Invert logic to simplify descriptions.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Amit Kucheria <amit.kucheria@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20201028153541.1736279-1-geert+renesas@glider.be
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Add binding documentation for the MediaTek MT8516 SoC.
The SoC thermal IP is similar to MT2701.
Signed-off-by: Fabien Parent <fparent@baylibre.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20201021164231.3029956-2-fparent@baylibre.com
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MT8516 Thermal IP does not support reset. Make the resets property
optional in order to be able to support MT8516 SoC.
Signed-off-by: Fabien Parent <fparent@baylibre.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20201021164231.3029956-1-fparent@baylibre.com
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git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov:
- support for inhibiting input devices at request from userspace. If a
device implements open/close methods, it can also put device into low
power state. This is needed, for example, to disable keyboard and
touchpad on convertibles when they are transitioned into tablet mode
- now that ordinary input devices can be configured for polling mode,
dedicated input polling device implementation has been removed
- GTCO tablet driver has been removed, as it used problematic custom
HID parser, devices are EOL, and there is no interest from the
manufacturer
- a new driver for Dialog DA7280 haptic chips has been introduced
- a new driver for power button on Dell Wyse 3020
- support for eKTF2132 in ektf2127 driver
- support for SC2721 and SC2730 in sc27xx-vibra driver
- enhancements for Atmel touchscreens, AD7846 touchscreens, Elan
touchpads, ADP5589, ST1232 touchscreen, TM2 touchkey drivers
- fixes and cleanups to allow clean builds with W=1
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (86 commits)
Input: da7280 - fix spelling mistake "sequemce" -> "sequence"
Input: cyapa_gen6 - fix out-of-bounds stack access
Input: sc27xx - add support for sc2730 and sc2721
dt-bindings: input: Add compatible string for SC2721 and SC2730
dt-bindings: input: Convert sc27xx-vibra.txt to json-schema
Input: stmpe - add axis inversion and swapping capability
Input: adp5589-keys - do not explicitly control IRQ for wakeup
Input: adp5589-keys - do not unconditionally configure as wakeup source
Input: ipx4xx-beeper - convert comma to semicolon
Input: parkbd - convert comma to semicolon
Input: new da7280 haptic driver
dt-bindings: input: Add document bindings for DA7280
MAINTAINERS: da7280 updates to the Dialog Semiconductor search terms
Input: elantech - fix protocol errors for some trackpoints in SMBus mode
Input: elan_i2c - add new trackpoint report type 0x5F
Input: elants - document some registers and values
Input: atmel_mxt_ts - simplify the return expression of mxt_send_bootloader_cmd()
Input: imx_keypad - add COMPILE_TEST support
Input: applespi - use new structure for SPI transfer delays
Input: synaptics-rmi4 - use new structure for SPI transfer delays
...
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Add new compatible strings to support sc2730 and sc2721 which are
two varieties of SC27XX family.
Signed-off-by: Chunyan Zhang <chunyan.zhang@unisoc.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20201117034949.47877-4-zhang.lyra@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Convert the sprd sc27xx vibrator binding to DT schema using json-schema.
Signed-off-by: Chunyan Zhang <chunyan.zhang@unisoc.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20201117034949.47877-3-zhang.lyra@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Add device tree binding information for DA7280 haptic driver.
Example bindings for DA7280 are added.
Signed-off-by: Roy Im <roy.im.opensource@diasemi.com>
Reviewed-by: Rob Herring <robh@kernel.org>.
Link: https://lore.kernel.org/r/2bc9a4a9d083ea8f360ec75f6281b6de6c4ef284.1606320459.git.Roy.Im@diasemi.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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The Samsung touchkey controllers are often used with external pull-up
for the interrupt line and the I2C lines, so we might need to enable
a regulator to bring the lines into usable state. Otherwise, this might
cause spurious interrupts and reading from I2C will fail.
Document support for a "vddio-supply" that is enabled by the tm2-touchkey
driver so that the regulator gets enabled when needed.
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20201203131242.44397-2-stephan@gerhold.net
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Convert the device tree bindings for tm2-touchkey to the YAML format.
While we're at it, clarify the descriptions a bit to make it clear that
this driver can be used for many different MCUs that all implement
a similar I2C protocol. Depending on the MCU the voltage requirements
may be different, on some devices the controller uses 2.2V, 2.8V or
even 3.3V for vcc-supply instead of 1.8V.
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20201203131242.44397-1-stephan@gerhold.net
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Add binding document for the Dell Wyse 3020 a.k.a. "Ariel" Power Button.
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20201201083533.1724287-2-lkundrak@v3.sk
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Document inhibiting input devices and its relation to being
a wakeup source.
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@collabora.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://lore.kernel.org/r/20200617101822.8558-1-andrzej.p@collabora.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Now that normal input devices support polling mode, and all users of
input_polled_dev API have been converted, we can remove it.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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This converts the Armel MXT touchscreen bindings to YAML format and
extends them with the following two properties:
- vdda-supply: the optional analog supply voltage
- vdd-supply: the optional digital supply voltage
Tested the schema with all in-tree users and they verify fine.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20201104153032.1387747-2-linus.walleij@linaro.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Sync up with mainline to bring in the latest DTS files.
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The eKTF2132 is a touchscreen controller found, for example, in the Kobo
Aura ebook reader. It is similar to the ektf2127, but it uses a different
packet type to report touch events.
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Link: https://lore.kernel.org/r/20201106112412.390724-2-j.neuschaefer@gmx.net
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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