linux-stable/Documentation
Linus Torvalds 041bc24d86 pci-v6.1-changes
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Merge tag 'pci-v6.1-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull pci updates from Bjorn Helgaas:
 "Resource management:

   - Distribute spare resources to unconfigured hotplug bridges at
     boot-time (not just when hot-adding such a bridge), which makes
     hot-adding devices to docks work better.

   - Revert to a BAR assignment inherited from firmware only when the
     address is actually reachable via any upstream bridges, which fixes
     some cases where firmware doesn't configure all devices.

   - Add a sysfs interface to resize BARs so this can be done before
     assigning devices to a VM through VFIO.

  Power management:

   - Disable Precision Time Management for all devices on suspend to
     enable lower-power PM state. We previously did this just for Root
     Ports, which isn't enough because downstream devices can still
     generate PTM messages, which cause errors if it's disabled in the
     Root Port.

   - Save and restore the ASPM L1 PM Substates configuration for
     suspend/ resume. Previously this configuration was lost, so L1.x
     states likely stopped working after resume.

   - Check whether the L1 PM Substates Capability exists. If it didn't
     exist, we previously read junk and tried to configure L1 Substates
     based on that.

   - Fix the LTR_L1.2_THRESHOLD computation, which previously set a
     threshold for entering L1.2 that was too low in some cases.

   - Reduce the delay after transitions to or from D3cold by using
     usleep_range() rather than msleep(), which often slept for ~19ms
     instead of the 10ms normally required. The spec says 10ms is
     enough, but it's possible we could trip over devices that need a
     little more.

  Error handling:

   - Work around a BIOS bug that caused Intel Root Ports to advertise a
     Root Port Programmed I/O (RP PIO) log size of zero, which caused
     annoying warnings and prevented the kernel from dumping log
     registers for DPC errors.

  Qualcomm PCIe controller driver:

   - Add support for SC8280XP and SA8540P host controllers and SM8450
     endpoint controller.

   - Disable Master AXI clock on endpoint controllers to save power when
     link is idle or in L1.x.

   - Expose link state transition counts via debugfs to help debug
     issues with low-power states.

   - Add auto-loading module support.

  Synopsys DesignWare PCIe controller driver:

   - Remove a dependency on ZONE_DMA32 by allocating the MSI target page
     differently. There's more work to do related to eDMA controllers,
     so it's not completely settled"

* tag 'pci-v6.1-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (71 commits)
  PCI: qcom-ep: Check platform_get_resource_byname() return value
  PCI: qcom-ep: Add support for SM8450 SoC
  dt-bindings: PCI: qcom-ep: Add support for SM8450 SoC
  dt-bindings: PCI: qcom-ep: Define clocks per platform
  PCI: qcom-ep: Make PERST separation optional
  dt-bindings: PCI: qcom-ep: Make PERST separation optional
  PCI: qcom-ep: Disable Master AXI Clock when there is no PCIe traffic
  PCI: Expose PCIe Resizable BAR support via sysfs
  PCI/ASPM: Correct LTR_L1.2_THRESHOLD computation
  PCI/ASPM: Ignore L1 PM Substates if device lacks capability
  PCI/ASPM: Factor out L1 PM Substates configuration
  PCI: qcom-ep: Gate Master AXI clock to MHI bus during L1SS
  PCI: qcom-ep: Expose link transition counts via debugfs
  PCI: qcom-ep: Disable IRQs during driver remove
  PCI/ASPM: Save L1 PM Substates Capability for suspend/resume
  PCI/ASPM: Refactor L1 PM Substates Control Register programming
  PCI: qcom-ep: Make use of the cached dev pointer
  PCI: qcom-ep: Rely on the clocks supplied by devicetree
  PCI: qcom-ep: Add kernel-doc for qcom_pcie_ep structure
  phy: freescale: imx8m-pcie: Fix the wrong order of phy_init() and phy_power_on()
  ...
2022-10-11 11:08:18 -07:00
..
ABI pci-v6.1-changes 2022-10-11 11:08:18 -07:00
accounting filemap: make the accounting of thrashing more consistent 2022-09-26 19:46:06 -07:00
admin-guide - Yu Zhao's Multi-Gen LRU patches are here. They've been under test in 2022-10-10 17:53:04 -07:00
arc
arm EFI updates for v6.1 2022-10-09 08:56:54 -07:00
arm64 Merge branches 'for-next/doc', 'for-next/sve', 'for-next/sysreg', 'for-next/gettimeofday', 'for-next/stacktrace', 'for-next/atomics', 'for-next/el1-exceptions', 'for-next/a510-erratum-2658417', 'for-next/defconfig', 'for-next/tpidr2_el0' and 'for-next/ftrace', remote-tracking branch 'arm64/for-next/perf' into for-next/core 2022-09-30 09:17:57 +01:00
block
bpf Networking changes for 6.1. 2022-10-04 13:38:03 -07:00
cdrom
core-api - Yu Zhao's Multi-Gen LRU patches are here. They've been under test in 2022-10-10 17:53:04 -07:00
cpu-freq
crypto
dev-tools - Yu Zhao's Multi-Gen LRU patches are here. They've been under test in 2022-10-10 17:53:04 -07:00
devicetree pci-v6.1-changes 2022-10-11 11:08:18 -07:00
doc-guide Rust introduction for v6.1-rc1 2022-10-03 16:39:37 -07:00
driver-api Driver core changes for 6.1-rc1 2022-10-07 17:04:10 -07:00
fault-injection
fb Documentation: fb: udlfb: clean up text and formatting 2022-09-27 13:21:44 -06:00
features
filesystems tmpfile API change 2022-10-10 19:45:17 -07:00
firmware-guide Merge branches 'acpi-misc', 'acpi-tools' and 'acpi-docs' 2022-10-03 20:03:49 +02:00
firmware_class
fpga
gpu Immutable backlight-detect-refactor branch between acpi, drm-* and pdx86 2022-09-14 12:27:10 +01:00
hid
hwmon hwmon: (corsair-psu) add USB id of new revision of the HX1000i psu 2022-10-02 14:38:55 -07:00
i2c docs: i2c: slave-interface: return errno when handle I2C_SLAVE_WRITE_REQUESTED 2022-09-28 21:41:59 +02:00
ia64
iio docs: iio: add documentation for BNO055 driver 2022-09-21 18:42:56 +01:00
images
infiniband
input Merge branch 'next' into for-linus 2022-10-09 22:30:23 -07:00
isdn
kbuild Kbuild updates for v6.1 2022-10-10 12:00:45 -07:00
kernel-hacking
leds
litmus-tests
livepatch
locking Remove duplicate words inside documentation 2022-09-27 13:21:43 -06:00
loongarch
m68k
maintainer
mhi
mips
misc-devices
mm - Yu Zhao's Multi-Gen LRU patches are here. They've been under test in 2022-10-10 17:53:04 -07:00
netlabel
networking ethtool: add interface to interact with Ethernet Power Equipment 2022-10-03 17:33:57 -07:00
nios2
nvdimm
openrisc
parisc
PCI
pcmcia
peci
power
powerpc powerpc/64s: update cpu selection options 2022-09-28 19:22:10 +10:00
process Kbuild updates for v6.1 2022-10-10 12:00:45 -07:00
RCU There's not a huge amount of activity in the docs tree this time around, 2022-10-03 10:23:32 -07:00
riscv
rust x86: enable initial Rust support 2022-09-28 09:02:45 +02:00
s390
scheduler docs: scheduler: Update new path for the sysctl knobs 2022-09-27 13:21:42 -06:00
scsi
security landlock: Fix documentation style 2022-09-29 18:43:04 +02:00
sh
sound
sparc
sphinx
sphinx-static
spi
staging docs: put atomic*.txt and memory-barriers.txt into the core-api book 2022-09-29 12:55:06 -06:00
target
timers
tools
trace Tracing updates for 6.1: 2022-10-10 12:20:55 -07:00
translations Driver core changes for 6.1-rc1 2022-10-07 17:04:10 -07:00
usb
userspace-api media updates for v6.1-rc1 2022-10-07 11:04:35 -07:00
virt This update includes the following changes: 2022-10-10 13:04:25 -07:00
w1 Documentation: W1: minor typo corrections 2022-09-27 13:21:44 -06:00
watchdog
x86 - Get rid of a single ksize() usage 2022-10-04 10:12:08 -07:00
xtensa
.gitignore
arch.rst
atomic_bitops.txt
atomic_t.txt
Changes
CodingStyle
conf.py There's not a huge amount of activity in the docs tree this time around, 2022-10-03 10:23:32 -07:00
docutils.conf
dontdiff
index.rst Rust introduction for v6.1-rc1 2022-10-03 16:39:37 -07:00
Kconfig
Makefile
memory-barriers.txt
SubmittingPatches
subsystem-apis.rst docs: Rewrite the front page 2022-09-29 12:55:06 -06:00