Caleb Connolly [Wed, 20 Mar 2024 12:25:11 +0000 (12:25 +0000)]
arm64: dts: qcom: sdm845-db845c: make pcie0_3p3v_dual always-on
This regulator is responsible not just for the PCIe 3.3v rail, but also
for 5v VBUS on the left USB port. There is currently no way to correctly
model this dependency on the USB controller, as a result when the PCIe
driver is not available (for example when in the initramfs) USB is
non-functional.
Until support is added for modelling this property (likely by
referencing it as a supply under a usb-connector node), let's just make
it always on. We don't target any power constrained usecases and this
regulator is required for USB to function correctly.
Konrad Dybcio [Tue, 19 Mar 2024 15:23:33 +0000 (16:23 +0100)]
arm64: dts: qcom: sc8280xp: Fill in EAS properties
Replace the bogus capacity-dmips-mhz values and add the measured
dynamic-power-coefficient values.
The power numbers were measured by matters much more precise than the
laggy and cache-y pmic_glink battery data, though the reported values
were only accurate to 10mA. But that shouldn't be an issue, especially
for the fat and power-hungry X1Cs and given that *each SoC unit* has
somewhat different frequency-voltage maps.
Jianhua Lu [Sat, 23 Mar 2024 10:04:43 +0000 (18:04 +0800)]
arm64: dts: qcom: sm8250-xiaomi-elish: set pm8150b_vbus regulator-min-microamp and regulator-max-microamp
Fix the dtb check warnings:
sm8250-xiaomi-elish-boe.dtb: usb-vbus-regulator@1100: 'regulator-min-microamp' is a required property
sm8250-xiaomi-elish-boe.dtb: usb-vbus-regulator@1100: 'regulator-max-microamp' is a required property
Fixes: 69652787279d ("arm64: dts: qcom: sm8250-xiaomi-elish: Add pm8150b type-c node and enable usb otg") Signed-off-by: Jianhua Lu <lujianhua000@gmail.com> Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org> Link: https://lore.kernel.org/r/20240323100443.2478-1-lujianhua000@gmail.com Signed-off-by: Bjorn Andersson <andersson@kernel.org>
The orientation GPIOs are not limited to sm8450/sm8550/x1e8000
platforms. Allow corresponding property to be used on all Qualcom
platforms.
Fixes: 65682407f8f4 ("dt-bindings: soc: qcom: qcom,pmic-glink: add a gpio used to determine the Type-C port plug orientation") Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Acked-by: Krzysztof Kozlowski <krzk@kernel.org> Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org> Link: https://lore.kernel.org/r/20240409-hdk-orientation-gpios-v2-1-658efd993987@linaro.org Signed-off-by: Bjorn Andersson <andersson@kernel.org>
arm64: dts: qcom: qcm6490-idp: Name the regulators
Without explicitly specifying names for the regulators they are named
based on the DeviceTree node name. This results in multiple regulators
with the same name, making it impossible to reason debug prints and
regulator_summary.
arm64: dts: qcom: sa8155p-adp: lower min volt for L13C regulator
Voltage regulator L13C is used by SD card IO interface. In order to
support UHS modes, IO interface voltage needs to be set to 1.8V. This
patch extends minimum voltage range of L13C regulator to allow this.
Signed-off-by: Volodymyr Babchuk <volodymyr_babchuk@epam.com> Fixes: 0deb2624e2d0 ("arm64: dts: qcom: sa8155p-adp: Add support for uSD card") Suggested-by: Stephan Gerhold <stephan@gerhold.net> Link: https://lore.kernel.org/r/20240412190310.1647893-2-volodymyr_babchuk@epam.com Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Abel Vesa [Fri, 19 Apr 2024 16:13:58 +0000 (19:13 +0300)]
arm64: dts: qcom: x1e80100-qcp: Add data-lanes and link-frequencies to DP3
The data-lanes are a property of the out remote endpoint, so move them
from mdss_dp3 to the mdss_dp3_out. Also add the link-frequencies to
mdss_dp3_out and make sure to include all frequencies.
Fixes: f9a9c11471da ("arm64: dts: qcom: x1e80100-qcp: Enable more support") Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org> Signed-off-by: Abel Vesa <abel.vesa@linaro.org> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Link: https://lore.kernel.org/r/20240419-x1e80100-dts-fix-mdss-dp3-v2-3-10f4ed7a09b4@linaro.org Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Abel Vesa [Fri, 19 Apr 2024 16:13:57 +0000 (19:13 +0300)]
arm64: dts: qcom: x1e80100-crd: Add data-lanes and link-frequencies to DP3
The data-lanes are a property of the out remote endpoint, so move them
from mdss_dp3 to the mdss_dp3_out. Also add the link-frequencies to
mdss_dp3_out and make sure to include all frequencies.
Fixes: d7e03cce0400 ("arm64: dts: qcom: x1e80100-crd: Enable more support") Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org> Signed-off-by: Abel Vesa <abel.vesa@linaro.org> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Link: https://lore.kernel.org/r/20240419-x1e80100-dts-fix-mdss-dp3-v2-2-10f4ed7a09b4@linaro.org Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Konrad Dybcio [Mon, 12 Feb 2024 13:10:15 +0000 (14:10 +0100)]
arm64: dts: qcom: Add SM8550 Xperia 1 V
Add support for Sony Xperia 1 V, a.k.a PDX234. This device is a part
of the SoMC SM8550 Yodo platform.
This commit brings support for:
* Remoteprocs (sans modem for now)
* Flash LED (the notification LED is gone :((((()
* SD Card
* USB (*including SuperSpeed*) + PMIC_GLINK (it's funky, requires a replug
with an cable flip sometimes..)
* Most regulators
* Part of I2C-connected peripherals (notably no touch due to a
driver bug)
* PCIe0 (PCIe1 is unused)
Do note display via simplefb is not supported, as the display is blanked
upon exiting XBL.
To create a working boot image, you need to run:
cat arch/arm64/boot/Image.gz arch/arm64/boot/dts/qcom/sm8550-sony-xperia-\
yodo-pdx234.dtb > .Image.gz-dtb
Then, you need to flash it on the device and get rid of all the
vendor_boot/dtbo mess:
// You have to either pull vbmeta{"","_system"} from
// /dev/block/bootdevice/by-name/ or build one as a part of AOSP build process
fastboot --disable-verity --disable-verification flash vbmeta vbmeta.img
fastboot --disable-verity --disable-verification flash vbmeta_system \
vbmeta_system.img
Where emptydtbo.img is a tiny file that consists of 2 bytes (all zeroes), doing
a "fastboot erase" won't cut it, the bootloader will go crazy and things will
fall apart when it tries to overlay random bytes from an empty partition onto a
perfectly good appended DTB.
Enable modem DSP and WiFI devices on the SM8150 HDK device. The HDK is
manufactured by Lantronix, but it attributed to Qualcomm, so the
calibration string uses Qualcomm as manufacturer.
For reference:
ath10k_snoc 18800000.wifi: qmi chip_id 0x30224 chip_family 0x4001 board_id 0x55 soc_id 0x40060000
ath10k_snoc 18800000.wifi: qmi fw_version 0x32040163 fw_build_timestamp 2019-10-08 05:42 fw_build_id QC_IMAGE_VERSION_STRING=WLAN.HL.3.2.0-00355-QCAHLSWMTPLZ-1
ath10k_snoc 18800000.wifi: wcn3990 hw1.0 target 0x00000008 chip_id 0x00000000 sub 0000:0000
ath10k_snoc 18800000.wifi: kconfig debug 1 debugfs 0 tracing 0 dfs 0 testmode 0
ath10k_snoc 18800000.wifi: firmware ver api 5 features wowlan,mgmt-tx-by-reference,non-bmi crc32 b3d4b790
ath10k_snoc 18800000.wifi: htt-ver 3.73 wmi-op 4 htt-op 3 cal file max-sta 32 raw 0 hwcrypto 1
ath10k_snoc 18800000.wifi: invalid MAC address; choosing random
Most of the Galaxy Grand Prime use backlight drivers controlled with PWM
signal.
To simplify the description, add the backlight with the necessary clk-pwm
to the common dtsi.
Signed-off-by: Siddharth Manthan <siddharth.manthan@gmail.com>
[Stephan: Move to fortuna-common and disable on rossa-common] Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
[Raymond: Add the commit message] Signed-off-by: Raymond Hackley <raymondhackley@protonmail.com> Link: https://lore.kernel.org/r/20240404121703.17086-3-raymondhackley@protonmail.com Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Like msm8916-samsung-a3u-eur, the Grand Prime uses a Zinitix BT541
touchscreen. Add it together with the necessary fixed-regulator to the
device tree.
Signed-off-by: Joe Mason <buddyjojo06@outlook.com>
[Raymond: Move to fortuna-common. Use interrupts-extended] Signed-off-by: Raymond Hackley <raymondhackley@protonmail.com> Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org> Link: https://lore.kernel.org/r/20240404121703.17086-2-raymondhackley@protonmail.com Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Bjorn Andersson [Wed, 27 Mar 2024 02:04:22 +0000 (19:04 -0700)]
arm64: dts: qcom: qcs6490-rb3gen2: Enable USB Type-C display
With the ADSP remoteproc loaded pmic_glink can be introduced and
together with the redriver wired up to provide role and orientation
switching signals as well as USB Type-C display on the RB3gen2.
Bjorn Andersson [Wed, 27 Mar 2024 02:04:21 +0000 (19:04 -0700)]
arm64: dts: qcom: qcs6490-rb3gen2: Introduce USB redriver
The RB3gen2 has a USB redriver on APPS_I2C, enable the bus and introduce
the redriver. The plumbing with other components is kept separate for
clarity.
Neil Armstrong [Thu, 14 Mar 2024 08:53:06 +0000 (09:53 +0100)]
arm64: dts: qcom: sm8650: fix usb interrupts properties
Update the usb interrupts properties to fix the following
bindings check errors:
usb@a6f8800: interrupt-names:0: 'pwr_event' was expected
from schema $id: http://devicetree.org/schemas/usb/qcom,dwc3.yaml#
usb@a6f8800: interrupt-names:1: 'hs_phy_irq' was expected
from schema $id: http://devicetree.org/schemas/usb/qcom,dwc3.yaml#
usb@a6f8800: interrupt-names:2: 'dp_hs_phy_irq' was expected
from schema $id: http://devicetree.org/schemas/usb/qcom,dwc3.yaml#
usb@a6f8800: interrupt-names:3: 'dm_hs_phy_irq' was expected
from schema $id: http://devicetree.org/schemas/usb/qcom,dwc3.yaml#
usb@a6f8800: interrupt-names: ['hs_phy_irq', 'ss_phy_irq', 'dm_hs_phy_irq', 'dp_hs_phy_irq'] is too short
from schema $id: http://devicetree.org/schemas/usb/qcom,dwc3.yaml#
Dmitry Baryshkov [Thu, 14 Mar 2024 01:42:49 +0000 (03:42 +0200)]
arm64: dts: qcom: msm8916: drop dtbTool-specific compatibles
Drop two board compatibles that were used by the skales dtbTool to index
device tree blobs. It was required to boot those devices with the
original bootloader, however all users should have switched to the
lk2nd bootloader by now.
Dmitry Baryshkov [Thu, 14 Mar 2024 01:42:48 +0000 (03:42 +0200)]
dt-bindings: arm: qcom: drop dtbTool-specific compatibles
Drop two board compatibles that were used by the skales dtbTool to index
device tree blobs. It was required to boot those devices with the
original bootloader, however all users should have switched to the
lk2nd bootloader by now.
Paweł Owoc [Wed, 13 Mar 2024 10:27:06 +0000 (11:27 +0100)]
arm64: dts: qcom: ipq8074: Remove unused gpio from QPIC pins
gpio16 will only be used for LCD support, as its NAND/LCDC data[8]
so its bit 9 of the parallel QPIC interface, and ONFI NAND is only 8
or 16-bit with only 8-bit one being supported in our case so that pin
is unused.
It should be dropped from the default NAND pinctrl configuration
as its unused and only needed for LCD.
Stephen Boyd [Thu, 29 Feb 2024 01:35:01 +0000 (17:35 -0800)]
arm64: dts: qcom: sc7180: Disable DCC node by default
We don't use this device on Trogdor boards. If we did, it would be
enabled in the sc7180-trogdor.dtsi file. Let's disable this here so that
boards with t he sc7180 SoC can decide to enable or disable this device.
Cc: Souradeep Chowdhury <quic_schowdhu@quicinc.com> Fixes: add74cad7c9d ("arm64: dts: qcom: sc7180: Add Data Capture and Compare(DCC) support node") Signed-off-by: Stephen Boyd <swboyd@chromium.org> Reviewed-by: Douglas Anderson <dianders@chromium.org> Link: https://lore.kernel.org/r/20240229013503.483651-1-swboyd@chromium.org Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Stephen Boyd [Thu, 29 Feb 2024 01:28:26 +0000 (17:28 -0800)]
arm64: dts: qcom: sc7180: Disable pmic pinctrl node on Trogdor
We don't use this pmic pinctrl node on any Trogdor devices. The
AP_SUSPEND pin is here, but this pinctrl device isn't a supplier to
anything in the devicetrees that include this file. Disable this device
node in the DTS so that we don't waste time or memory on this device.
arm64: dts: qcom: sc8180x: Drop flags for mdss irqs
The number of interrupt cells for the mdss interrupt controller is 1,
meaning there should only be one cell for the interrupt number, not two.
Drop the second cell containing (unused) irq flags.
The first part of the compatible of Type-C node misses ending quote,
thus we have one long compatible consisting of two compatible strings
leading to dtbs_check warnings:
sc7180-idp.dtb: usb-vbus-regulator@1100: compatible:0: 'qcom,pm6150-vbus-reg,\n qcom,pm8150b-vbus-reg' does not match '^[a-zA-Z0-9][a-zA-Z0-9,+\\-._/]+$'
sc7180-idp.dtb: /soc@0/spmi@c440000/pmic@0/usb-vbus-regulator@1100: failed to match any schema with compatible: ['qcom,pm6150-vbus-reg,\n qcom,pm8150b-vbus-reg']
Reported-by: Rob Herring <robh@kernel.org> Fixes: f81c2f01cad6 ("arm64: dts: qcom: pm6150: define USB-C related blocks") Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20240328074544.5076-1-krzysztof.kozlowski@linaro.org Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Linus Torvalds [Sun, 24 Mar 2024 20:54:06 +0000 (13:54 -0700)]
Merge tag 'efi-fixes-for-v6.9-2' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi
Pull EFI fixes from Ard Biesheuvel:
- Fix logic that is supposed to prevent placement of the kernel image
below LOAD_PHYSICAL_ADDR
- Use the firmware stack in the EFI stub when running in mixed mode
- Clear BSS only once when using mixed mode
- Check efi.get_variable() function pointer for NULL before trying to
call it
* tag 'efi-fixes-for-v6.9-2' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi:
efi: fix panic in kdump kernel
x86/efistub: Don't clear BSS twice in mixed mode
x86/efistub: Call mixed mode boot services on the firmware's stack
efi/libstub: fix efi_random_alloc() to allocate memory at alloc_min or higher address
Linus Torvalds [Sun, 24 Mar 2024 18:13:56 +0000 (11:13 -0700)]
Merge tag 'x86-urgent-2024-03-24' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Thomas Gleixner:
- Ensure that the encryption mask at boot is properly propagated on
5-level page tables, otherwise the PGD entry is incorrectly set to
non-encrypted, which causes system crashes during boot.
- Undo the deferred 5-level page table setup as it cannot work with
memory encryption enabled.
- Prevent inconsistent XFD state on CPU hotplug, where the MSR is reset
to the default value but the cached variable is not, so subsequent
comparisons might yield the wrong result and as a consequence the
result prevents updating the MSR.
- Register the local APIC address only once in the MPPARSE enumeration
to prevent triggering the related WARN_ONs() in the APIC and topology
code.
- Handle the case where no APIC is found gracefully by registering a
fake APIC in the topology code. That makes all related topology
functions work correctly and does not affect the actual APIC driver
code at all.
- Don't evaluate logical IDs during early boot as the local APIC IDs
are not yet enumerated and the invoked function returns an error
code. Nothing requires the logical IDs before the final CPUID
enumeration takes place, which happens after the enumeration.
- Cure the fallout of the per CPU rework on UP which misplaced the
copying of boot_cpu_data to per CPU data so that the final update to
boot_cpu_data got lost which caused inconsistent state and boot
crashes.
- Use copy_from_kernel_nofault() in the kprobes setup as there is no
guarantee that the address can be safely accessed.
- Reorder struct members in struct saved_context to work around another
kmemleak false positive
- Remove the buggy code which tries to update the E820 kexec table for
setup_data as that is never passed to the kexec kernel.
- Update the resource control documentation to use the proper units.
- Fix a Kconfig warning observed with tinyconfig
* tag 'x86-urgent-2024-03-24' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/boot/64: Move 5-level paging global variable assignments back
x86/boot/64: Apply encryption mask to 5-level pagetable update
x86/cpu: Add model number for another Intel Arrow Lake mobile processor
x86/fpu: Keep xfd_state in sync with MSR_IA32_XFD
Documentation/x86: Document that resctrl bandwidth control units are MiB
x86/mpparse: Register APIC address only once
x86/topology: Handle the !APIC case gracefully
x86/topology: Don't evaluate logical IDs during early boot
x86/cpu: Ensure that CPU info updates are propagated on UP
kprobes/x86: Use copy_from_kernel_nofault() to read from unsafe address
x86/pm: Work around false positive kmemleak report in msr_build_context()
x86/kexec: Do not update E820 kexec table for setup_data
x86/config: Fix warning for 'make ARCH=x86_64 tinyconfig'
Linus Torvalds [Sun, 24 Mar 2024 18:11:05 +0000 (11:11 -0700)]
Merge tag 'sched-urgent-2024-03-24' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler doc clarification from Thomas Gleixner:
"A single update for the documentation of the base_slice_ns tunable to
clarify that any value which is less than the tick slice has no effect
because the scheduler tick is not guaranteed to happen within the set
time slice"
* tag 'sched-urgent-2024-03-24' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/doc: Update documentation for base_slice_ns and CONFIG_HZ relation
Linus Torvalds [Sun, 24 Mar 2024 17:45:31 +0000 (10:45 -0700)]
Merge tag 'dma-mapping-6.9-2024-03-24' of git://git.infradead.org/users/hch/dma-mapping
Pull dma-mapping fixes from Christoph Hellwig:
"This has a set of swiotlb alignment fixes for sometimes very long
standing bugs from Will. We've been discussion them for a while and
they should be solid now"
* tag 'dma-mapping-6.9-2024-03-24' of git://git.infradead.org/users/hch/dma-mapping:
swiotlb: Reinstate page-alignment for mappings >= PAGE_SIZE
iommu/dma: Force swiotlb_max_mapping_size on an untrusted device
swiotlb: Fix alignment checks when both allocation and DMA masks are present
swiotlb: Honour dma_alloc_coherent() alignment in swiotlb_alloc()
swiotlb: Enforce page alignment in swiotlb_alloc()
swiotlb: Fix double-allocation of slots due to broken alignment handling
Check if get_next_variable() is actually valid pointer before
calling it. In kdump kernel this method is set to NULL that causes
panic during the kexec-ed kernel boot.
Tested with QEMU and OVMF firmware.
Fixes: bad267f9e18f ("efi: verify that variable services are supported") Signed-off-by: Oleksandr Tymoshenko <ovt@google.com> Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Ard Biesheuvel [Fri, 22 Mar 2024 16:01:45 +0000 (17:01 +0100)]
x86/efistub: Don't clear BSS twice in mixed mode
Clearing BSS should only be done once, at the very beginning.
efi_pe_entry() is the entrypoint from the firmware, which may not clear
BSS and so it is done explicitly. However, efi_pe_entry() is also used
as an entrypoint by the mixed mode startup code, in which case BSS will
already have been cleared, and doing it again at this point will corrupt
global variables holding the firmware's GDT/IDT and segment selectors.
So make the memset() conditional on whether the EFI stub is running in
native mode.
Ard Biesheuvel [Fri, 22 Mar 2024 15:03:58 +0000 (17:03 +0200)]
x86/efistub: Call mixed mode boot services on the firmware's stack
Normally, the EFI stub calls into the EFI boot services using the stack
that was live when the stub was entered. According to the UEFI spec,
this stack needs to be at least 128k in size - this might seem large but
all asynchronous processing and event handling in EFI runs from the same
stack and so quite a lot of space may be used in practice.
In mixed mode, the situation is a bit different: the bootloader calls
the 32-bit EFI stub entry point, which calls the decompressor's 32-bit
entry point, where the boot stack is set up, using a fixed allocation
of 16k. This stack is still in use when the EFI stub is started in
64-bit mode, and so all calls back into the EFI firmware will be using
the decompressor's limited boot stack.
Due to the placement of the boot stack right after the boot heap, any
stack overruns have gone unnoticed. However, commit
5c4feadb0011983b ("x86/decompressor: Move global symbol references to C code")
moved the definition of the boot heap into C code, and now the boot
stack is placed right at the base of BSS, where any overruns will
corrupt the end of the .data section.
While it would be possible to work around this by increasing the size of
the boot stack, doing so would affect all x86 systems, and mixed mode
systems are a tiny (and shrinking) fraction of the x86 installed base.
So instead, record the firmware stack pointer value when entering from
the 32-bit firmware, and switch to this stack every time a EFI boot
service call is made.
Tom Lendacky [Fri, 22 Mar 2024 15:41:07 +0000 (10:41 -0500)]
x86/boot/64: Move 5-level paging global variable assignments back
Commit 63bed9660420 ("x86/startup_64: Defer assignment of 5-level paging
global variables") moved assignment of 5-level global variables to later
in the boot in order to avoid having to use RIP relative addressing in
order to set them. However, when running with 5-level paging and SME
active (mem_encrypt=on), the variables are needed as part of the page
table setup needed to encrypt the kernel (using pgd_none(), p4d_offset(),
etc.). Since the variables haven't been set, the page table manipulation
is done as if 4-level paging is active, causing the system to crash on
boot.
While only a subset of the assignments that were moved need to be set
early, move all of the assignments back into check_la57_support() so that
these assignments aren't spread between two locations. Instead of just
reverting the fix, this uses the new RIP_REL_REF() macro when assigning
the variables.
Tom Lendacky [Fri, 22 Mar 2024 15:41:06 +0000 (10:41 -0500)]
x86/boot/64: Apply encryption mask to 5-level pagetable update
When running with 5-level page tables, the kernel mapping PGD entry is
updated to point to the P4D table. The assignment uses _PAGE_TABLE_NOENC,
which, when SME is active (mem_encrypt=on), results in a page table
entry without the encryption mask set, causing the system to crash on
boot.
Change the assignment to use _PAGE_TABLE instead of _PAGE_TABLE_NOENC so
that the encryption mask is set for the PGD entry.
Adamos Ttofari [Fri, 22 Mar 2024 23:04:39 +0000 (16:04 -0700)]
x86/fpu: Keep xfd_state in sync with MSR_IA32_XFD
Commit 672365477ae8 ("x86/fpu: Update XFD state where required") and
commit 8bf26758ca96 ("x86/fpu: Add XFD state to fpstate") introduced a
per CPU variable xfd_state to keep the MSR_IA32_XFD value cached, in
order to avoid unnecessary writes to the MSR.
On CPU hotplug MSR_IA32_XFD is reset to the init_fpstate.xfd, which
wipes out any stale state. But the per CPU cached xfd value is not
reset, which brings them out of sync.
As a consequence a subsequent xfd_update_state() might fail to update
the MSR which in turn can result in XRSTOR raising a #NM in kernel
space, which crashes the kernel.
To fix this, introduce xfd_set_state() to write xfd_state together
with MSR_IA32_XFD, and use it in all places that set MSR_IA32_XFD.
Fixes: 672365477ae8 ("x86/fpu: Update XFD state where required") Signed-off-by: Adamos Ttofari <attofari@amazon.de> Signed-off-by: Chang S. Bae <chang.seok.bae@intel.com> Signed-off-by: Ingo Molnar <mingo@kernel.org> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/20240322230439.456571-1-chang.seok.bae@intel.com Closes: https://lore.kernel.org/lkml/20230511152818.13839-1-attofari@amazon.de
Tony Luck [Fri, 22 Mar 2024 18:20:15 +0000 (11:20 -0700)]
Documentation/x86: Document that resctrl bandwidth control units are MiB
The memory bandwidth software controller uses 2^20 units rather than
10^6. See mbm_bw_count() which computes bandwidth using the "SZ_1M"
Linux define for 0x00100000.
Update the documentation to use MiB when describing this feature.
It's too late to fix the mount option "mba_MBps" as that is now an
established user interface.
Linus Torvalds [Sat, 23 Mar 2024 21:49:25 +0000 (14:49 -0700)]
Merge tag 'timers-urgent-2024-03-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer fixes from Thomas Gleixner:
"Two regression fixes for the timer and timer migration code:
- Prevent endless timer requeuing which is caused by two CPUs racing
out of idle. This happens when the last CPU goes idle and therefore
has to ensure to expire the pending global timers and some other
CPU come out of idle at the same time and the other CPU wins the
race and expires the global queue. This causes the last CPU to
chase ghost timers forever and reprogramming it's clockevent device
endlessly.
Cure this by re-evaluating the wakeup time unconditionally.
- The split into local (pinned) and global timers in the timer wheel
caused a regression for NOHZ full as it broke the idle tracking of
global timers. On NOHZ full this prevents an self IPI being sent
which in turn causes the timer to be not programmed and not being
expired on time.
Restore the idle tracking for the global timer base so that the
self IPI condition for NOHZ full is working correctly again"
* tag 'timers-urgent-2024-03-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
timers: Fix removed self-IPI on global timer's enqueue in nohz_full
timers/migration: Fix endless timer requeue after idle interrupts
Linus Torvalds [Sat, 23 Mar 2024 21:42:45 +0000 (14:42 -0700)]
Merge tag 'timers-core-2024-03-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull more clocksource updates from Thomas Gleixner:
"A set of updates for clocksource and clockevent drivers:
- A fix for the prescaler of the ARM global timer where the prescaler
mask define only covered 4 bits while it is actully 8 bits wide.
This obviously restricted the possible range of prescaler
adjustments
- A fix for the RISC-V timer which prevents a timer interrupt being
raised while the timer is initialized
- A set of device tree updates to support new system on chips in
various drivers
- Kernel-doc and other cleanups all over the place"
* tag 'timers-core-2024-03-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
clocksource/drivers/timer-riscv: Clear timer interrupt on timer initialization
dt-bindings: timer: Add support for cadence TTC PWM
clocksource/drivers/arm_global_timer: Simplify prescaler register access
clocksource/drivers/arm_global_timer: Guard against division by zero
clocksource/drivers/arm_global_timer: Make gt_target_rate unsigned long
dt-bindings: timer: add Ralink SoCs system tick counter
clocksource: arm_global_timer: fix non-kernel-doc comment
clocksource/drivers/arm_global_timer: Remove stray tab
clocksource/drivers/arm_global_timer: Fix maximum prescaler value
clocksource/drivers/imx-sysctr: Add i.MX95 support
clocksource/drivers/imx-sysctr: Drop use global variables
dt-bindings: timer: nxp,sysctr-timer: support i.MX95
dt-bindings: timer: renesas: ostm: Document RZ/Five SoC
dt-bindings: timer: renesas,tmu: Document input capture interrupt
clocksource/drivers/ti-32K: Fix misuse of "/**" comment
clocksource/drivers/stm32: Fix all kernel-doc warnings
dt-bindings: timer: exynos4210-mct: Add google,gs101-mct compatible
clocksource/drivers/imx: Fix -Wunused-but-set-variable warning
Linus Torvalds [Sat, 23 Mar 2024 21:30:38 +0000 (14:30 -0700)]
Merge tag 'irq-urgent-2024-03-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fixes from Thomas Gleixner:
"A series of fixes for the Renesas RZG21 interrupt chip driver to
prevent spurious and misrouted interrupts.
- Ensure that posted writes are flushed in the eoi() callback
- Ensure that interrupts are masked at the chip level when the
trigger type is changed
- Clear the interrupt status register when setting up edge type
trigger modes
- Ensure that the trigger type and routing information is set before
the interrupt is enabled"
* tag 'irq-urgent-2024-03-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqchip/renesas-rzg2l: Do not set TIEN and TINT source at the same time
irqchip/renesas-rzg2l: Prevent spurious interrupts when setting trigger type
irqchip/renesas-rzg2l: Rename rzg2l_irq_eoi()
irqchip/renesas-rzg2l: Rename rzg2l_tint_eoi()
irqchip/renesas-rzg2l: Flush posted write in irq_eoi()
Linus Torvalds [Sat, 23 Mar 2024 21:17:37 +0000 (14:17 -0700)]
Merge tag 'core-entry-2024-03-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull core entry fix from Thomas Gleixner:
"A single fix for the generic entry code:
The trace_sys_enter() tracepoint can modify the syscall number via
kprobes or BPF in pt_regs, but that requires that the syscall number
is re-evaluted from pt_regs after the tracepoint.
A seccomp fix in that area removed the re-evaluation so the change
does not take effect as the code just uses the locally cached number.
Restore the original behaviour by re-evaluating the syscall number
after the tracepoint"
* tag 'core-entry-2024-03-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
entry: Respect changes to system call number by trace_sys_enter()
Linus Torvalds [Sat, 23 Mar 2024 16:21:26 +0000 (09:21 -0700)]
Merge tag 'powerpc-6.9-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull more powerpc updates from Michael Ellerman:
- Handle errors in mark_rodata_ro() and mark_initmem_nx()
- Make struct crash_mem available without CONFIG_CRASH_DUMP
Thanks to Christophe Leroy and Hari Bathini.
* tag 'powerpc-6.9-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/kdump: Split KEXEC_CORE and CRASH_DUMP dependency
powerpc/kexec: split CONFIG_KEXEC_FILE and CONFIG_CRASH_DUMP
kexec/kdump: make struct crash_mem available without CONFIG_CRASH_DUMP
powerpc: Handle error in mark_rodata_ro() and mark_initmem_nx()
Linus Torvalds [Sat, 23 Mar 2024 16:17:03 +0000 (09:17 -0700)]
Merge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm
Pull ARM updates from Russell King:
- remove a misuse of kernel-doc comment
- use "Call trace:" for backtraces like other architectures
- implement copy_from_kernel_nofault_allowed() to fix a LKDTM test
- add a "cut here" line for prefetch aborts
- remove unnecessary Kconfing entry for FRAME_POINTER
- remove iwmmxy support for PJ4/PJ4B cores
- use bitfield helpers in ptrace to improve readabililty
- check if folio is reserved before flushing
* tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm:
ARM: 9359/1: flush: check if the folio is reserved for no-mapping addresses
ARM: 9354/1: ptrace: Use bitfield helpers
ARM: 9352/1: iwmmxt: Remove support for PJ4/PJ4B cores
ARM: 9353/1: remove unneeded entry for CONFIG_FRAME_POINTER
ARM: 9351/1: fault: Add "cut here" line for prefetch aborts
ARM: 9350/1: fault: Implement copy_from_kernel_nofault_allowed()
ARM: 9349/1: unwind: Add missing "Call trace:" line
ARM: 9334/1: mm: init: remove misuse of kernel-doc comment
Linus Torvalds [Sat, 23 Mar 2024 15:43:21 +0000 (08:43 -0700)]
Merge tag 'hardening-v6.9-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull more hardening updates from Kees Cook:
- CONFIG_MEMCPY_SLOW_KUNIT_TEST is no longer needed (Guenter Roeck)
- Fix needless UTF-8 character in arch/Kconfig (Liu Song)
- Improve __counted_by warning message in LKDTM (Nathan Chancellor)
- Refactor DEFINE_FLEX() for default use of __counted_by
- Disable signed integer overflow sanitizer on GCC < 8
* tag 'hardening-v6.9-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
lkdtm/bugs: Improve warning message for compilers without counted_by support
overflow: Change DEFINE_FLEX to take __counted_by member
Revert "kunit: memcpy: Split slow memcpy tests into MEMCPY_SLOW_KUNIT_TEST"
arch/Kconfig: eliminate needless UTF-8 character in Kconfig help
ubsan: Disable signed integer overflow sanitizer on GCC < 8
Thomas Gleixner [Fri, 22 Mar 2024 18:56:39 +0000 (19:56 +0100)]
x86/mpparse: Register APIC address only once
The APIC address is registered twice. First during the early detection and
afterwards when actually scanning the table for APIC IDs. The APIC and
topology core warn about the second attempt.
Thomas Gleixner [Fri, 22 Mar 2024 18:56:38 +0000 (19:56 +0100)]
x86/topology: Handle the !APIC case gracefully
If there is no local APIC enumerated and registered then the topology
bitmaps are empty. Therefore, topology_init_possible_cpus() will die with
a division by zero exception.
Prevent this by registering a fake APIC id to populate the topology
bitmap. This also allows to use all topology query interfaces
unconditionally. It does not affect the actual APIC code because either
the local APIC address was not registered or no local APIC could be
detected.
Fixes: f1f758a80516 ("x86/topology: Add a mechanism to track topology via APIC IDs") Reported-by: Guenter Roeck <linux@roeck-us.net> Reported-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de> Tested-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20240322185305.242709302@linutronix.de
Thomas Gleixner [Fri, 22 Mar 2024 18:56:35 +0000 (19:56 +0100)]
x86/cpu: Ensure that CPU info updates are propagated on UP
The boot sequence evaluates CPUID information twice:
1) During early boot
2) When finalizing the early setup right before
mitigations are selected and alternatives are patched.
In both cases the evaluation is stored in boot_cpu_data, but on UP the
copying of boot_cpu_data to the per CPU info of the boot CPU happens
between #1 and #2. So any update which happens in #2 is never propagated to
the per CPU info instance.
Consolidate the whole logic and copy boot_cpu_data right before applying
alternatives as that's the point where boot_cpu_data is in it's final
state and not supposed to change anymore.
This also removes the voodoo mb() from smp_prepare_cpus_common() which
had absolutely no purpose.
Fixes: 71eb4893cfaf ("x86/percpu: Cure per CPU madness on UP") Reported-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de> Tested-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20240322185305.127642785@linutronix.de
lkdtm/bugs: Improve warning message for compilers without counted_by support
The current message for telling the user that their compiler does not
support the counted_by attribute in the FAM_BOUNDS test does not make
much sense either grammatically or semantically. Fix it to make it
correct in both aspects.
Kees Cook [Wed, 6 Mar 2024 23:51:36 +0000 (15:51 -0800)]
overflow: Change DEFINE_FLEX to take __counted_by member
The norm should be flexible array structures with __counted_by
annotations, so DEFINE_FLEX() is updated to expect that. Rename
the non-annotated version to DEFINE_RAW_FLEX(), and update the
few existing users. Additionally add selftests for the macros.
Linus Torvalds [Fri, 22 Mar 2024 20:31:07 +0000 (13:31 -0700)]
Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull more SCSI updates from James Bottomley:
"The vfs has long had a write lifetime hint mechanism that gives the
expected longevity on storage of the data being written. f2fs was the
original consumer of this and used the hint for flash data placement
(mostly to avoid write amplification by placing objects with similar
lifetimes in the same erase block).
More recently the SCSI based UFS (Universal Flash Storage) drivers
have wanted to take advantage of this as well, for the same reasons as
f2fs, necessitating plumbing the write hints through the block layer
and then adding it to the SCSI core.
The vfs write_hints already taken plumbs this as far as block and this
completes the SCSI core enabling based on a recently agreed reuse of
the old write command group number. The additions to the scsi_debug
driver are for emulating this property so we can run tests on it in
the absence of an actual UFS device"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: scsi_debug: Maintain write statistics per group number
scsi: scsi_debug: Implement GET STREAM STATUS
scsi: scsi_debug: Implement the IO Advice Hints Grouping mode page
scsi: scsi_debug: Allocate the MODE SENSE response from the heap
scsi: scsi_debug: Rework subpage code error handling
scsi: scsi_debug: Rework page code error handling
scsi: scsi_debug: Support the block limits extension VPD page
scsi: scsi_debug: Reduce code duplication
scsi: sd: Translate data lifetime information
scsi: scsi_proto: Add structures and constants related to I/O groups and streams
scsi: core: Query the Block Limits Extension VPD page
projects / thirdparty / linux.git / log
