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Mario Limonciello 729aeee990 PCI/PM: Avoid D3cold for HP Pavilion 17 PC/1972 PCIe Ports 
[ Upstream commit 256df20c59 ]

Hewlett-Packard HP Pavilion 17 Notebook PC/1972 is an Intel Ivy Bridge
system with a muxless AMD Radeon dGPU.  Attempting to use the dGPU fails
with the following sequence:

  ACPI Error: Aborting method \AMD3._ON due to previous error (AE_AML_LOOP_TIMEOUT) (20230628/psparse-529)
  radeon 0000:01:00.0: not ready 1023ms after resume; waiting
  radeon 0000:01:00.0: not ready 2047ms after resume; waiting
  radeon 0000:01:00.0: not ready 4095ms after resume; waiting
  radeon 0000:01:00.0: not ready 8191ms after resume; waiting
  radeon 0000:01:00.0: not ready 16383ms after resume; waiting
  radeon 0000:01:00.0: not ready 32767ms after resume; waiting
  radeon 0000:01:00.0: not ready 65535ms after resume; giving up
  radeon 0000:01:00.0: Unable to change power state from D3cold to D0, device inaccessible

The issue is that the Root Port the dGPU is connected to can't handle the
transition from D3cold to D0 so the dGPU can't properly exit runtime PM.

The existing logic in pci_bridge_d3_possible() checks for systems that are
newer than 2015 to decide that D3 is safe.  This would nominally work for
an Ivy Bridge system (which was discontinued in 2015), but this system
appears to have continued to receive BIOS updates until 2017 and so this
existing logic doesn't appropriately capture it.

Add the system to bridge_d3_blacklist to prevent D3cold from being used.

Link: https://lore.kernel.org/r/20240307163709.323-1-mario.limonciello@amd.com
Reported-by: Eric Heintzmann <heintzmann.eric@free.fr>
Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3229
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Tested-by: Eric Heintzmann <heintzmann.eric@free.fr>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-06-27 13:52:18 +02:00
arch kprobe/ftrace: bail out if ftrace was killed 2024-06-27 13:52:17 +02:00
block block/ioctl: prefer different overflow check 2024-06-27 13:52:12 +02:00
certs This update includes the following changes: 2023-11-02 16:15:30 -10:00
crypto crypto: ecrdsa - Fix module auto-load on add_key 2024-06-16 13:51:03 +02:00
Documentation dt-bindings: usb: realtek,rts5411: Add missing "additionalProperties" on child nodes 2024-06-21 14:40:39 +02:00
drivers PCI/PM: Avoid D3cold for HP Pavilion 17 PC/1972 PCIe Ports 2024-06-27 13:52:18 +02:00
fs udf: udftime: prevent overflow in udf_disk_stamp_to_time() 2024-06-27 13:52:18 +02:00
include kprobe/ftrace: bail out if ftrace was killed 2024-06-27 13:52:17 +02:00
init printk: Fix LOG_CPU_MAX_BUF_SHIFT when BASE_SMALL is enabled 2024-06-12 11:39:35 +02:00
io_uring io_uring/sqpoll: work around a potential audit memory leak 2024-06-27 13:52:11 +02:00
ipc sysctl changes for v6.9-rc1 2024-03-18 14:59:13 -07:00
kernel kprobe/ftrace: bail out if ftrace was killed 2024-06-27 13:52:17 +02:00
lib ubsan: Avoid i386 UBSAN handler crashes with Clang 2024-06-27 13:52:12 +02:00
LICENSES LICENSES: Add the copyleft-next-0.3.1 license 2022-11-08 15:44:01 +01:00
mm mm/huge_memory: don't unpoison huge_zero_folio 2024-06-21 14:40:38 +02:00
net netpoll: Fix race condition in netpoll_owner_active 2024-06-27 13:52:14 +02:00
rust rust: remove params from module macro example 2024-04-25 17:34:33 +02:00
samples samples/landlock: Fix incorrect free in populate_ruleset_net 2024-05-30 09:45:01 +02:00
scripts locking/atomic: scripts: fix ${atomic}_sub_and_test() kerneldoc 2024-06-21 14:40:31 +02:00
security ima: Fix use-after-free on a dentry's dname.name 2024-06-21 14:40:38 +02:00
sound ALSA: hda/realtek: Add quirks for Lenovo 13X 2024-06-27 13:52:16 +02:00
tools selftests: net: fix timestamp not arriving in cmsg_time.sh 2024-06-27 13:52:15 +02:00
usr Kbuild updates for v6.8 2024-01-18 17:57:07 -08:00
virt KVM: Drop unused @may_block param from gfn_to_pfn_cache_invalidate_start() 2024-04-11 12:58:53 -07:00
.clang-format clang-format: Update with v6.7-rc4's for_each macro list 2023-12-08 23:54:38 +01:00
.cocciconfig
.editorconfig .editorconfig: remove trim_trailing_whitespace option 2024-06-21 14:40:11 +02:00
.get_maintainer.ignore Add Jeff Kirsher to .get_maintainer.ignore 2024-03-08 11:36:54 +00:00
.gitattributes .gitattributes: set diff driver for Rust source code files 2023-05-31 17:48:25 +02:00
.gitignore kbuild: create a list of all built DTB files 2024-02-19 18:20:39 +09:00
.mailmap 18 hotfixes, 7 of which are cc:stable. 2024-05-10 14:16:03 -07:00
.rustfmt.toml rust: add .rustfmt.toml 2022-09-28 09:02:20 +02:00
COPYING
CREDITS MAINTAINERS: Drop Gustavo Pimentel as PCI DWC Maintainer 2024-03-27 13:41:02 -05:00
Kbuild Kbuild updates for v6.1 2022-10-10 12:00:45 -07:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS cpufreq: amd-pstate: remove global header file 2024-06-21 14:40:00 +02:00
Makefile Linux 6.9.6 2024-06-21 14:40:40 +02:00
README README: Fix spelling 2024-03-18 03:36:32 -06:00

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.