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When the serial console is enabled, we need to disable power delivery
since serial uses the SBU1/2 pins and appears to confuse the TCPCI,
resulting in endless interrupts.
For now, change the DT such that the serial console continues working.
Note1: We can not have both typec-power-opmode and
new-source-frs-typec-current active at the same time, as otherwise DT
binding checks complain.
Note2: When using a downstream DT, the Pixel boot-loader will modify
the DT accordingly before boot, but for this upstream DT it doesn't
know where to find the TCPCI node. The intention is for this commit to
be reverted once an updated Pixel boot-loader becomes available.
Signed-off-by: André Draszik <andre.draszik@linaro.org>
Link: https://lore.kernel.org/r/20241203-gs101-phy-lanes-orientation-dts-v2-5-1412783a6b01@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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On Pixel 6 (and Pro), a max77759 companion PMIC for USB Type-C
applications is used, which contains four functional blocks (at
distinct I2C addresses):
* top (including GPIO)
* charger
* fuel gauge
* TCPCi
While in the same package, TCPCi and Fuel Gauge have separate I2C
addresses, interrupt lines and interrupt status registers and can be
treated independently.
The TCPCi is required to detect and handle connector orientation in
Pixel's USB PHY driver, and to configure the USB controller's role
(host vs device).
This change adds the TCPCi part as it can be independent and doesn't
need a top-level MFD.
Signed-off-by: André Draszik <andre.draszik@linaro.org>
Reviewed-by: Peter Griffin <peter.griffin@linaro.org>
Tested-by: Peter Griffin <peter.griffin@linaro.org>
Link: https://lore.kernel.org/r/20241203-gs101-phy-lanes-orientation-dts-v2-4-1412783a6b01@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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Samsung Galaxy S9 (SM-G960F), codenamed starlte, is a mobile phone
released in 2017. It has 4GB of RAM, 64GB of UFS storage, Exynos9810
SoC and 1440x2960 Super AMOLED display.
This initial device tree enables the framebuffer pre-initialised
by bootloader and physical buttons of the device, with more support
to come in the future.
Co-developed-by: Maksym Holovach <nergzd@nergzd723.xyz>
Signed-off-by: Maksym Holovach <nergzd@nergzd723.xyz>
Signed-off-by: Markuss Broks <markuss.broks@gmail.com>
Link: https://lore.kernel.org/r/20241214-exynos9810-v4-2-4e91fbbc2133@gmail.com
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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Exynos 9810 is an ARMv8 mobile SoC found in various Samsung devices,
such as Samsung Galaxy S9 (starlte), S9 Plus (star2lte),
Note 9 (crownlte) and perhaps others.
Add minimal support for this SoC, including basic stuff like:
- PSCI for bringing up secondary cores
- ARMv8 generic timer
- GPIO and pinctrl.
The firmware coming with the devices based on this SoC is buggy
and doesn't configure CNTFRQ_EL0, as required by spec, so it's
needed to hardcode the frequency in the timer node.
Co-developed-by: Maksym Holovach <nergzd@nergzd723.xyz>
Signed-off-by: Maksym Holovach <nergzd@nergzd723.xyz>
Signed-off-by: Markuss Broks <markuss.broks@gmail.com>
Link: https://lore.kernel.org/r/20241214-exynos9810-v4-1-4e91fbbc2133@gmail.com
[krzysztof: Rename and move PMU nodes to proper sorting position]
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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Instead of carving out the secure area in 'memory' node, let's describe
it in 'reserved-memory'. That makes it easier to understand both RAM
regions and particular secure world memory region. Originally the device
tree was created in a way to make sure it was well aligned with the way
LittleKernel bootloader modified it. But later it was found the
LittleKernel works fine with properly described reserved regions, so
it's possible now to define those in a cleaner way.
Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org>
Link: https://lore.kernel.org/r/20241211033027.12985-1-semen.protsenko@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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Since we have a PMU compatiable for Samsung's Mongoose cores now, drop
the comment that explains the lack of it and define the node.
Signed-off-by: Umer Uddin <umer.uddin@mentallysanemainliners.org>
Link: https://lore.kernel.org/r/20241214115855.49138-2-umer.uddin@mentallysanemainliners.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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ExynosAutov920 SoC has 7 DMA controllers. Two secure DMAC
(SPDMA0 & SPDMA1) and five non-secure DMAC (PDMA0 to PDMA4).
Add the required dt nodes for the same.
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: Faraz Ata <faraz.ata@samsung.com>
Link: https://lore.kernel.org/r/20241212115709.1724-1-faraz.ata@samsung.com
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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Since we have a PMU compatible for Samsung's Mongoose cores now, drop
the comment that explains the lack of it and define the node.
Signed-off-by: Ivaylo Ivanov <ivo.ivanov.ivanov1@gmail.com>
Link: https://lore.kernel.org/r/20241211162942.450525-2-ivo.ivanov.ivanov1@gmail.com
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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Add dt-schema documentation for the Exynos990 SoC CMU.
This clock management unit has a topmost block (CMU_TOP)
that generates top clocks for other blocks. Currently the
only other block implemented is CMU_HSI0, which provides
clocks for the USB part of the SoC.
Also, device-tree binding definitions added for these blocks:
- CMU_TOP
- CMU_HSI0
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Igor Belwon <igor.belwon@mentallysanemainliners.org>
Link: https://lore.kernel.org/r/20241209-exynos990-cmu-v4-1-57f07080f9e4@mentallysanemainliners.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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Adds two watchdog devices for ExynosAutoV920 SoC.
Signed-off-by: Byoungtae Cho <bt.cho@samsung.com>
Signed-off-by: Taewan Kim <trunixs.kim@samsung.com>
Link: https://lore.kernel.org/r/20241206025139.2148833-2-trunixs.kim@samsung.com
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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Add initial support for the Samsung Galaxy S20 (x1slte/SM-G980F)
phone. It was launched in 2020, and it's based on the Exynos 990 SoC. It
has only one configuration with 8GB of RAM and 128GB of UFS 3.0 storage.
This device tree adds support for the following:
- SimpleFB
- 8GB RAM
- Buttons
Signed-off-by: Umer Uddin <umer.uddin@mentallysanemainliners.org>
Link: https://lore.kernel.org/r/20241209080059.11891-5-umer.uddin@mentallysanemainliners.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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Add initial support for the Samsung Galaxy S20 5G (x1s/SM-G981B)
phone. It was launched in 2020, and it's based on the Exynos 990 SoC. It
has only one configuration with 12GB of RAM and 128GB of UFS 3.0 storage.
This device tree adds support for the following:
- SimpleFB
- 12GB RAM
- Buttons
Signed-off-by: Umer Uddin <umer.uddin@mentallysanemainliners.org>
Link: https://lore.kernel.org/r/20241209080059.11891-4-umer.uddin@mentallysanemainliners.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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(x1s-common)
Add initial support for the Samsung Galaxy S20 Series (x1s-common) phones.
They were launched in 2020, and are based on the Exynos 990 SoC.
The devices have multiple RAM configurations,
starting from 8GB going all the way up to 16GB for the S20 Ultra devices.
This device tree adds support for the following:
- SimpleFB
- 8GB RAM (Any more will be mapped in device trees)
- Buttons
Signed-off-by: Umer Uddin <umer.uddin@mentallysanemainliners.org>
Link: https://lore.kernel.org/r/20241209080059.11891-3-umer.uddin@mentallysanemainliners.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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SM-G980F board
Add devicetree bindings for Samsung Galaxy S20 5G
and Samsung Galaxy S20 board.
Signed-off-by: Umer Uddin <umer.uddin@mentallysanemainliners.org>
Link: https://lore.kernel.org/r/20241209080059.11891-2-umer.uddin@mentallysanemainliners.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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For the DWC3 core to reliably detect the connected phy's Vbus state, we
need to disable phy suspend.
Add
snps,dis_u2_susphy_quirk
snps,dis_u3_susphy_quirk
to do that.
While at it, also add
snps,has-lpm-erratum
as this is set downstream which implies that the core was configured
with LPM Erratum. We should do the same here.
Signed-off-by: André Draszik <andre.draszik@linaro.org>
Reviewed-by: Peter Griffin <peter.griffin@linaro.org>
Tested-by: Peter Griffin <peter.griffin@linaro.org>
Link: https://lore.kernel.org/r/20241203-gs101-phy-lanes-orientation-dts-v2-3-1412783a6b01@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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Turns out there are some additional registers in the phy region, update
the DT accordingly.
Signed-off-by: André Draszik <andre.draszik@linaro.org>
Reviewed-by: Peter Griffin <peter.griffin@linaro.org>
Tested-by: Peter Griffin <peter.griffin@linaro.org>
Link: https://lore.kernel.org/r/20241203-gs101-phy-lanes-orientation-dts-v2-2-1412783a6b01@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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Add myself and Tudor as reviewers for the Google Tensor SoC alongside
Peter.
While at it, also add our IRC channel.
Signed-off-by: André Draszik <andre.draszik@linaro.org>
Acked-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Reviewed-by: Peter Griffin <peter.griffin@linaro.org>
Link: https://lore.kernel.org/r/20241203-gs101-maintainers-v1-1-f287036dbde5@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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Add PMU syscon, and syscon-reboot nodes to the Exynos990 dtsi.
Reboot of the Exynos990 SoC is handled by setting bit(SWRESET_TRIGGER[1])
of SWRESET register (PMU + 0x3a00).
Tested using the "reboot" command.
Signed-off-by: Igor Belwon <igor.belwon@mentallysanemainliners.org>
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Link: https://lore.kernel.org/r/20241204145559.524932-3-igor.belwon@mentallysanemainliners.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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Add initial support for the Samsung Galaxy S20 FE (r8s/SM-G780F) device.
Its launch was in 2020 and also based on the Exynos 990 SoC.
It is only configured with 6GB of RAM, although storage options may differ.
This device tree adds support for the following:
- SimpleFB
- 6GB RAM
- Buttons
Signed-off-by: Denzeel Oliva <wachiturroxd150@gmail.com>
Link: https://lore.kernel.org/r/20241114143636.374-3-wachiturroxd150@gmail.com
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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Add binding for the Samsung Galaxy S20 FE (SM-G780F) board, which is
based on the Samsung Exynos990 SoC.
Signed-off-by: Denzeel Oliva <wachiturroxd150@gmail.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/r/20241114143636.374-2-wachiturroxd150@gmail.com
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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Add nodes for serial_0 (UART_DBG) and serial_1 (UART_BT), which
allows using them.
Signed-off-by: Ivaylo Ivanov <ivo.ivanov.ivanov1@gmail.com>
Link: https://lore.kernel.org/r/20241023091734.538682-5-ivo.ivanov.ivanov1@gmail.com
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c component probing support from Wolfram Sang:
"Add OF component probing.
Some devices are designed and manufactured with some components having
multiple drop-in replacement options. These components are often
connected to the mainboard via ribbon cables, having the same signals
and pin assignments across all options. These may include the display
panel and touchscreen on laptops and tablets, and the trackpad on
laptops. Sometimes which component option is used in a particular
device can be detected by some firmware provided identifier, other
times that information is not available, and the kernel has to try to
probe each device.
Instead of a delicate dance between drivers and device tree quirks,
this change introduces a simple I2C component probe function. For a
given class of devices on the same I2C bus, it will go through all of
them, doing a simple I2C read transfer and see which one of them
responds. It will then enable the device that responds"
* tag 'i2c-for-6.13-rc1-part3' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
MAINTAINERS: fix typo in I2C OF COMPONENT PROBER
of: base: Document prefix argument for of_get_next_child_with_prefix()
i2c: Fix whitespace style issue
arm64: dts: mediatek: mt8173-elm-hana: Mark touchscreens and trackpads as fail
platform/chrome: Introduce device tree hardware prober
i2c: of-prober: Add GPIO support to simple helpers
i2c: of-prober: Add simple helpers for regulator support
i2c: Introduce OF component probe function
of: base: Add for_each_child_of_node_with_prefix()
of: dynamic: Add of_changeset_update_prop_string
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git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull bprintf() removal from Steven Rostedt:
- Remove unused bprintf() function, that was added with the rest of the
"bin-printf" functions.
These are functions that are used by trace_printk() that allows to
quickly save the format and arguments into the ring buffer without
the expensive processing of converting numbers to ASCII. Then on
output, at a much later time, the ring buffer is read and the string
processing occurs then. The bprintf() was added for consistency but
was never used. It can be safely removed.
* tag 'trace-printf-v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
printf: Remove unused 'bprintf'
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer fixes from Borislav Petkov:
- Fix a case where posix timers with a thread-group-wide target would
miss signals if some of the group's threads are exiting
- Fix a hang caused by ndelay() calling the wrong delay function
__udelay()
- Fix a wrong offset calculation in adjtimex(2) when using ADJ_MICRO
(microsecond resolution) and a negative offset
* tag 'timers_urgent_for_v6.13_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
posix-timers: Target group sigqueue to current task only if not exiting
delay: Fix ndelay() spuriously treated as udelay()
ntp: Remove invalid cast in time offset math
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fixes from Borislav Petkov:
- Move the ->select callback to the correct ops structure in
irq-mvebu-sei to fix some Marvell Armada platforms
- Add a workaround for Hisilicon ITS erratum 162100801 which can cause
some virtual interrupts to get lost
- More platform_driver::remove() conversion
* tag 'irq_urgent_for_v6.13_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqchip: Switch back to struct platform_driver::remove()
irqchip/gicv3-its: Add workaround for hip09 ITS erratum 162100801
irqchip/irq-mvebu-sei: Move misplaced select() callback to SEI CP domain
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Borislav Petkov:
- Add a terminating zero end-element to the array describing AMD CPUs
affected by erratum 1386 so that the matching loop actually
terminates instead of going off into the weeds
- Update the boot protocol documentation to mention the fact that the
preferred address to load the kernel to is considered in the
relocatable kernel case too
- Flush the memory buffer containing the microcode patch after applying
microcode on AMD Zen1 and Zen2, to avoid unnecessary slowdowns
- Make sure the PPIN CPU feature flag is cleared on all CPUs if PPIN
has been disabled
* tag 'x86_urgent_for_v6.13_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/CPU/AMD: Terminate the erratum_1386_microcode array
x86/Documentation: Update algo in init_size description of boot protocol
x86/microcode/AMD: Flush patch buffer mapping after application
x86/mm: Carve out INVLPG inline asm for use by others
x86/cpu: Fix PPIN initialization
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The point behind strscpy() was to once and for all avoid all the
problems with 'strncpy()' and later broken "fixed" versions like
strlcpy() that just made things worse.
So strscpy not only guarantees NUL-termination (unlike strncpy), it also
doesn't do unnecessary padding at the destination. But at the same time
also avoids byte-at-a-time reads and writes by _allowing_ some extra NUL
writes - within the size, of course - so that the whole copy can be done
with word operations.
It is also stable in the face of a mutable source string: it explicitly
does not read the source buffer multiple times (so an implementation
using "strnlen()+memcpy()" would be wrong), and does not read the source
buffer past the size (like the mis-design that is strlcpy does).
Finally, the return value is designed to be simple and unambiguous: if
the string cannot be copied fully, it returns an actual negative error,
making error handling clearer and simpler (and the caller already knows
the size of the buffer). Otherwise it returns the string length of the
result.
However, there was one final stability issue that can be important to
callers: the stability of the destination buffer.
In particular, the same way we shouldn't read the source buffer more
than once, we should avoid doing multiple writes to the destination
buffer: first writing a potentially non-terminated string, and then
terminating it with NUL at the end does not result in a stable result
buffer.
Yes, it gives the right result in the end, but if the rule for the
destination buffer was that it is _always_ NUL-terminated even when
accessed concurrently with updates, the final byte of the buffer needs
to always _stay_ as a NUL byte.
[ Note that "final byte is NUL" here is literally about the final byte
in the destination array, not the terminating NUL at the end of the
string itself. There is no attempt to try to make concurrent reads and
writes give any kind of consistent string length or contents, but we
do want to guarantee that there is always at least that final
terminating NUL character at the end of the destination array if it
existed before ]
This is relevant in the kernel for the tsk->comm[] array, for example.
Even without locking (for either readers or writers), we want to know
that while the buffer contents may be garbled, it is always a valid C
string and always has a NUL character at 'comm[TASK_COMM_LEN-1]' (and
never has any "out of thin air" data).
So avoid any "copy possibly non-terminated string, and terminate later"
behavior, and write the destination buffer only once.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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bprintf() is unused. Remove it. It was added in the commit 4370aa4aa753
("vsprintf: add binary printf") but as far as I can see was never used,
unlike the other two functions in that patch.
Link: https://lore.kernel.org/20241002173147.210107-1-linux@treblig.org
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Acked-by: Petr Mladek <pmladek@suse.com>
Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux
Pull turbostat updates from Len Brown:
- assorted minor bug fixes
- assorted platform specific tweaks
- initial RAPL PSYS (SysWatt) support
* tag 'turbostat-2024.11.30' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux:
tools/power turbostat: 2024.11.30
tools/power turbostat: Add RAPL psys as a built-in counter
tools/power turbostat: Fix child's argument forwarding
tools/power turbostat: Force --no-perf in --dump mode
tools/power turbostat: Add support for /sys/class/drm/card1
tools/power turbostat: Cache graphics sysfs file descriptors during probe
tools/power turbostat: Consolidate graphics sysfs access
tools/power turbostat: Remove unnecessary fflush() call
tools/power turbostat: Enhance platform divergence description
tools/power turbostat: Add initial support for GraniteRapids-D
tools/power turbostat: Remove PC3 support on Lunarlake
tools/power turbostat: Rename arl_features to lnl_features
tools/power turbostat: Add back PC8 support on Arrowlake
tools/power turbostat: Remove PC7/PC9 support on MTL
tools/power turbostat: Honor --show CPU, even when even when num_cpus=1
tools/power turbostat: Fix trailing '\n' parsing
tools/power turbostat: Allow using cpu device in perf counters on hybrid platforms
tools/power turbostat: Fix column printing for PMT xtal_time counters
tools/power turbostat: fix GCC9 build regression
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git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci
Pull PCI fix from Bjorn Helgaas:
- When removing a PCI device, only look up and remove a platform device
if there is an associated device node for which there could be a
platform device, to fix a merge window regression (Brian Norris)
* tag 'pci-v6.13-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci:
PCI/pwrctrl: Unregister platform device only if one actually exists
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git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/lsm
Pull ima fix from Paul Moore:
"One small patch to fix a function parameter / local variable naming
snafu that went up to you in the current merge window"
* tag 'lsm-pr-20241129' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/lsm:
ima: uncover hidden variable in ima_match_rules()
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Pull more block updates from Jens Axboe:
- NVMe pull request via Keith:
- Use correct srcu list traversal (Breno)
- Scatter-gather support for metadata (Keith)
- Fabrics shutdown race condition fix (Nilay)
- Persistent reservations updates (Guixin)
- Add the required bits for MD atomic write support for raid0/1/10
- Correct return value for unknown opcode in ublk
- Fix deadlock with zone revalidation
- Fix for the io priority request vs bio cleanups
- Use the correct unsigned int type for various limit helpers
- Fix for a race in loop
- Cleanup blk_rq_prep_clone() to prevent uninit-value warning and make
it easier for actual humans to read
- Fix potential UAF when iterating tags
- A few fixes for bfq-iosched UAF issues
- Fix for brd discard not decrementing the allocated page count
- Various little fixes and cleanups
* tag 'block-6.13-20242901' of git://git.kernel.dk/linux: (36 commits)
brd: decrease the number of allocated pages which discarded
block, bfq: fix bfqq uaf in bfq_limit_depth()
block: Don't allow an atomic write be truncated in blkdev_write_iter()
mq-deadline: don't call req_get_ioprio from the I/O completion handler
block: Prevent potential deadlock in blk_revalidate_disk_zones()
block: Remove extra part pointer NULLify in blk_rq_init()
nvme: tuning pr code by using defined structs and macros
nvme: introduce change ptpl and iekey definition
block: return bool from get_disk_ro and bdev_read_only
block: remove a duplicate definition for bdev_read_only
block: return bool from blk_rq_aligned
block: return unsigned int from blk_lim_dma_alignment_and_pad
block: return unsigned int from queue_dma_alignment
block: return unsigned int from bdev_io_opt
block: req->bio is always set in the merge code
block: don't bother checking the data direction for merges
block: blk-mq: fix uninit-value in blk_rq_prep_clone and refactor
Revert "block, bfq: merge bfq_release_process_ref() into bfq_put_cooperator()"
md/raid10: Atomic write support
md/raid1: Atomic write support
...
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Pull more io_uring updates from Jens Axboe:
- Remove a leftover struct from when the cqwait registered waiting was
transitioned to regions.
- Fix for an issue introduced in this merge window, where nop->fd might
be used uninitialized. Ensure it's always set.
- Add capping of the task_work run in local task_work mode, to prevent
bursty and long chains from adding too much latency.
- Work around xa_store() leaving ->head non-NULL if it encounters an
allocation error during storing. Just a debug trigger, and can go
away once xa_store() behaves in a more expected way for this
condition. Not a major thing as it basically requires fault injection
to trigger it.
- Fix a few mapping corner cases
- Fix KCSAN complaint on reading the table size post unlock. Again not
a "real" issue, but it's easy to silence by just keeping the reading
inside the lock that protects it.
* tag 'io_uring-6.13-20242901' of git://git.kernel.dk/linux:
io_uring/tctx: work around xa_store() allocation error issue
io_uring: fix corner case forgetting to vunmap
io_uring: fix task_work cap overshooting
io_uring: check for overflows in io_pin_pages
io_uring/nop: ensure nop->fd is always initialized
io_uring: limit local tw done
io_uring: add io_local_work_pending()
io_uring/region: return negative -E2BIG in io_create_region()
io_uring: protect register tracing
io_uring: remove io_uring_cqwait_reg_arg
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git://git.infradead.org/users/hch/dma-mapping
Pull dma-mapping fix from Christoph Hellwig:
- fix physical address calculation for struct dma_debug_entry (Fedor
Pchelkin)
* tag 'dma-mapping-6.13-2024-11-30' of git://git.infradead.org/users/hch/dma-mapping:
dma-debug: fix physical address calculation for struct dma_debug_entry
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Pull more kvm updates from Paolo Bonzini:
- ARM fixes
- RISC-V Svade and Svadu (accessed and dirty bit) extension support for
host and guest
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: riscv: selftests: Add Svade and Svadu Extension to get-reg-list test
RISC-V: KVM: Add Svade and Svadu Extensions Support for Guest/VM
dt-bindings: riscv: Add Svade and Svadu Entries
RISC-V: Add Svade and Svadu Extensions Support
KVM: arm64: Use MDCR_EL2.HPME to evaluate overflow of hyp counters
KVM: arm64: Ignore PMCNTENSET_EL0 while checking for overflow status
KVM: arm64: Mark set_sysreg_masks() as inline to avoid build failure
KVM: arm64: vgic-its: Add stronger type-checking to the ITS entry sizes
KVM: arm64: vgic: Kill VGIC_MAX_PRIVATE definition
KVM: arm64: vgic: Make vgic_get_irq() more robust
KVM: arm64: vgic-v3: Sanitise guest writes to GICR_INVLPIR
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git://git.kernel.org/pub/scm/linux/kernel/git/glaubitz/sh-linux
Pull sh updates from John Paul Adrian Glaubitz:
"Two small fixes.
The first one by Huacai Chen addresses a runtime warning when
CONFIG_CPUMASK_OFFSTACK and CONFIG_DEBUG_PER_CPU_MAPS are selected
which occurs because the cpuinfo code on sh incorrectly uses NR_CPUS
when iterating CPUs instead of the runtime limit nr_cpu_ids.
A second fix by Dan Carpenter fixes a use-after-free bug in
register_intc_controller() which occurred as a result of improper
error handling in the interrupt controller driver code when
registering an interrupt controller during plat_irq_setup() on sh"
* tag 'sh-for-v6.13-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/glaubitz/sh-linux:
sh: intc: Fix use-after-free bug in register_intc_controller()
sh: cpuinfo: Fix a warning for CONFIG_CPUMASK_OFFSTACK
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git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Catalin Marinas:
- Deselect ARCH_CORRECT_STACKTRACE_ON_KRETPROBE so that tests depending
on it don't run (and fail) on arm64
- Fix lockdep assert in the Arm SMMUv3 PMU driver
- Fix the port and device ID bits setting in the Arm CMN perf driver
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
perf/arm-cmn: Ensure port and device id bits are set properly
perf/arm-smmuv3: Fix lockdep assert in ->event_init()
arm64: disable ARCH_CORRECT_STACKTRACE_ON_KRETPROBE tests
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since 2024.07.26:
assorted minor bug fixes
assorted platform specific tweaks
initial RAPL PSYS (SysWatt) support
Signed-off-by: Len Brown <len.brown@intel.com>
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Introduce the counter as a part of global, platform counters structure.
We open the counter for only one cpu, but otherwise treat it as an
ordinary RAPL counter, allowing for grouped perf read.
The counter is disabled by default, because it's interpretation may
require additional, platform specific information, making it unsuitable
for general use.
Signed-off-by: Patryk Wlazlyn <patryk.wlazlyn@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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Add '+' to optstring when early scanning for --no-msr and --no-perf.
It causes option processing to stop as soon as a nonoption argument is
encountered, effectively skipping child's arguments.
Fixes: 3e4048466c39 ("tools/power turbostat: Add --no-msr option")
Signed-off-by: Patryk Wlazlyn <patryk.wlazlyn@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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Force the --no-perf early to prevent using it as a source. User asks for
raw values, but perf returns them relative to the opening of the file
descriptor.
Signed-off-by: Patryk Wlazlyn <patryk.wlazlyn@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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On some machines, the graphics device is enumerated as
/sys/class/drm/card1 instead of /sys/class/drm/card0. The current
implementation does not handle this scenario, resulting in the loss of
graphics C6 residency and frequency information.
Add support for /sys/class/drm/card1, ensuring that turbostat can
retrieve and display the graphics columns for these platforms.
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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Snapshots of the graphics sysfs knobs are taken based on file
descriptors. To optimize this process, open the files and cache the file
descriptors during the graphics probe phase. As a result, the previously
cached pathnames become redundant and are removed.
This change aims to streamline the code without altering its functionality.
No functional change intended.
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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Currently, there is an inconsistency in how graphics sysfs knobs are
accessed: graphics residency sysfs knobs are opened and closed for each
read, while graphics frequency sysfs knobs are opened once and remain
open until turbostat exits. This inconsistency is confusing and adds
unnecessary code complexity.
Consolidate the access method by opening the sysfs files once and
reusing the file pointers for subsequent accesses. This approach
simplifies the code and ensures a consistent method for accessing
graphics sysfs knobs.
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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The graphics sysfs knobs are read-only, making the use of fflush()
before reading them redundant.
Remove the unnecessary fflush() call.
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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In various generations, platforms often share a majority of features,
diverging only in a few specific aspects. The current approach of using
hardcoded values in 'platform_features' structure fails to effectively
represent these divergences.
To improve the description of platform divergence:
1. Each newly introduced 'platform_features' structure must have a base,
typically derived from the previous generation.
2. Platform feature values should be inherited from the base structure
rather than being hardcoded.
This approach ensures a more accurate and maintainable representation of
platform-specific features across different generations.
Converts `adl_features` and `lnl_features` to follow this new scheme.
No functional change.
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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Add initial support for GraniteRapids-D. It shares the same features
with SapphireRapids.
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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Lunarlake supports CC1/CC6/CC7/PC2/PC6/PC10.
Remove PC3 support on Lunarlake.
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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