History log of /openbmc/linux/drivers/idle/intel_idle.c (Results 1 – 25 of 1518)
Revision (<<< Hide revision tags) (Show revision tags >>>) Date Author Comments
# 0f9b4c3c 11-Mar-2025 Andrew Jeffery <andrew@codeconstruct.com.au>

Merge tag 'v6.6.81' into for/openbmc/dev-6.6

This is the 6.6.81 stable release

# -----BEGIN PGP SIGNATURE-----
#
# iQIzBAABCAAdFiEEZH8oZUiU471FcZm+ONu9yGCSaT4FAmfLFMMACgkQONu9yGCS
# aT6riRAAjyTT+Ia

Merge tag 'v6.6.81' into for/openbmc/dev-6.6

This is the 6.6.81 stable release

# -----BEGIN PGP SIGNATURE-----
#
# iQIzBAABCAAdFiEEZH8oZUiU471FcZm+ONu9yGCSaT4FAmfLFMMACgkQONu9yGCS
# aT6riRAAjyTT+IaZXhdNjx56GXicO4l4Spr9VmgecZWBJceNkDETDMof3dhhIHeV
# u+wKZKyL/ZBfElLqvMbOUKUK5aw4odI5d1Ri8C3ViYYrCsSTJNXUZ27YnF2xHyql
# Aw+otwwNTqDEJENFCLtdXhFBPinBXop5piv/eQeP5qHa1D8OGzl0Ntb1Lan5OIf3
# PIMoX7T5CQUd9cuUiJE9uX8t/VD18hqOrivOUGy7avyIOvaE7GaDt3xEz5Pw+b4l
# D+VOaskhFoLcehDlOmLxbKmdUFYMG/h1eSVE9azd9scFRjU5EEbRtOfkMFb8XE6D
# rgLY39Zol7dqdxBerqNvmbj1CRFIQfxoOSadKjiSRyZ2POttfSs3IADGOTRj/T/k
# +Hj1kFs3wLFoQ5RDRKDrzCq91pC2RcXFe3zQZWxla19Dhx3DwZZa5WlfHzIuFEZX
# mfJ7VR4k/ue9EFyvNGHZuAWfB0OcCCZ2WAlc8mXfvp3cIA5arEGvPGnffr/3/jCs
# gXxt186um11iSNYzVT1Ia6b7xz33EtHjMXUAnixlyuDK9dUPg6m48KIcTta5WPoP
# 7cqPNKDb59sua26TVyf91nb7r+7jp4Zfb9Be/7BxZoLTLxwPeD4gl7Sk7PYDycIk
# xmWetnoFhE8aNHJ5hId2LC7zd6jxn8xYHJQffJJ4yCU2ZmRBKI8=
# =VWtK
# -----END PGP SIGNATURE-----
# gpg: Signature made Sat 08 Mar 2025 02:16:11 ACDT
# gpg: using RSA key 647F28654894E3BD457199BE38DBBDC86092693E
# gpg: Good signature from "Greg Kroah-Hartman <gregkh@kernel.org>" [marginal]
# gpg: gregkh@kernel.org: Verified 10 signatures in the past 6 weeks. Encrypted
# 0 messages.
# gpg: Warning: you have yet to encrypt a message to this key!
# gpg: WARNING: This key is not certified with sufficiently trusted signatures!
# gpg: It is not certain that the signature belongs to the owner.
# Primary key fingerprint: 647F 2865 4894 E3BD 4571 99BE 38DB BDC8 6092 693E

show more ...


Revision tags: v6.6.81, v6.6.80
# 3b7d2d1b 25-Feb-2025 Thomas Gleixner <tglx@linutronix.de>

intel_idle: Handle older CPUs, which stop the TSC in deeper C states, correctly

commit c157d351460bcf202970e97e611cb6b54a3dd4a4 upstream.

The Intel idle driver is preferred over the ACPI processor

intel_idle: Handle older CPUs, which stop the TSC in deeper C states, correctly

commit c157d351460bcf202970e97e611cb6b54a3dd4a4 upstream.

The Intel idle driver is preferred over the ACPI processor idle driver,
but fails to implement the work around for Core2 generation CPUs, where
the TSC stops in C2 and deeper C-states. This causes stalls and boot
delays, when the clocksource watchdog does not catch the unstable TSC
before the CPU goes deep idle for the first time.

The ACPI driver marks the TSC unstable when it detects that the CPU
supports C2 or deeper and the CPU does not have a non-stop TSC.

Add the equivivalent work around to the Intel idle driver to cure that.

Fixes: 18734958e9bf ("intel_idle: Use ACPI _CST for processor models without C-state tables")
Reported-by: Fab Stz <fabstz-it@yahoo.fr>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Fab Stz <fabstz-it@yahoo.fr>
Cc: All applicable <stable@vger.kernel.org>
Closes: https://lore.kernel.org/all/10cf96aa-1276-4bd4-8966-c890377030c3@yahoo.fr
Link: https://patch.msgid.link/87bjupfy7f.ffs@tglx
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

show more ...


Revision tags: v6.6.79, v6.6.78, v6.6.77, v6.6.76, v6.6.75, v6.6.74, v6.6.73, v6.6.72, v6.6.71, v6.12.9, v6.6.70, v6.12.8, v6.6.69, v6.12.7, v6.6.68, v6.12.6, v6.6.67, v6.12.5, v6.6.66, v6.6.65, v6.12.4, v6.6.64, v6.12.3, v6.12.2, v6.6.63, v6.12.1, v6.12, v6.6.62, v6.6.61, v6.6.60, v6.6.59, v6.6.58, v6.6.57, v6.6.56, v6.6.55, v6.6.54, v6.6.53, v6.6.52, v6.6.51, v6.6.50, v6.6.49, v6.6.48, v6.6.47, v6.6.46, v6.6.45, v6.6.44, v6.6.43, v6.6.42, v6.6.41, v6.6.40, v6.6.39, v6.6.38, v6.6.37, v6.6.36, v6.6.35, v6.6.34, v6.6.33, v6.6.32, v6.6.31, v6.6.30, v6.6.29, v6.6.28, v6.6.27, v6.6.26, v6.6.25, v6.6.24, v6.6.23
# 1188f7f1 10-Feb-2024 Andrew Jeffery <andrew@codeconstruct.com.au>

Merge tag 'v6.6.14' into dev-6.6

This is the 6.6.14 stable release


Revision tags: v6.6.16, v6.6.15, v6.6.14, v6.6.13, v6.6.12, v6.6.11, v6.6.10, v6.6.9, v6.6.8, v6.6.7, v6.6.6, v6.6.5, v6.6.4, v6.6.3, v6.6.2
# 08beb0d4 15-Nov-2023 Peter Zijlstra <peterz@infradead.org>

x86: Fix CPUIDLE_FLAG_IRQ_ENABLE leaking timer reprogram

[ Upstream commit edc8fc01f608108b0b7580cb2c29dfb5135e5f0e ]

intel_idle_irq() re-enables IRQs very early. As a result, an interrupt
may fire

x86: Fix CPUIDLE_FLAG_IRQ_ENABLE leaking timer reprogram

[ Upstream commit edc8fc01f608108b0b7580cb2c29dfb5135e5f0e ]

intel_idle_irq() re-enables IRQs very early. As a result, an interrupt
may fire before mwait() is eventually called. If such an interrupt queues
a timer, it may go unnoticed until mwait returns and the idle loop
handles the tick re-evaluation. And monitoring TIF_NEED_RESCHED doesn't
help because a local timer enqueue doesn't set that flag.

The issue is mitigated by the fact that this idle handler is only invoked
for shallow C-states when, presumably, the next tick is supposed to be
close enough. There may still be rare cases though when the next tick
is far away and the selected C-state is shallow, resulting in a timer
getting ignored for a while.

Fix this with using sti_mwait() whose IRQ-reenablement only triggers
upon calling mwait(), dealing with the race while keeping the interrupt
latency within acceptable bounds.

Fixes: c227233ad64c (intel_idle: enable interrupts before C1 on Xeons)
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Frederic Weisbecker <frederic@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Rafael J. Wysocki <rafael@kernel.org>
Link: https://lkml.kernel.org/r/20231115151325.6262-3-frederic@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>

show more ...


Revision tags: v6.5.11, v6.6.1, v6.5.10, v6.6, v6.5.9, v6.5.8, v6.5.7, v6.5.6, v6.5.5, v6.5.4, v6.5.3
# c900529f 12-Sep-2023 Thomas Zimmermann <tzimmermann@suse.de>

Merge drm/drm-fixes into drm-misc-fixes

Forwarding to v6.6-rc1.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>


Revision tags: v6.5.2, v6.1.51, v6.5.1
# 1ac731c5 30-Aug-2023 Dmitry Torokhov <dmitry.torokhov@gmail.com>

Merge branch 'next' into for-linus

Prepare input updates for 6.6 merge window.


Revision tags: v6.1.50
# 1a7c6115 28-Aug-2023 Linus Torvalds <torvalds@linux-foundation.org>

Merge tag 'perf-core-2023-08-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull perf event updates from Ingo Molnar:

- AMD IBS improvements

- Intel PMU driver updates

- Extend c

Merge tag 'perf-core-2023-08-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull perf event updates from Ingo Molnar:

- AMD IBS improvements

- Intel PMU driver updates

- Extend core perf facilities & the ARM PMU driver to better handle ARM big.LITTLE events

- Micro-optimize software events and the ring-buffer code

- Misc cleanups & fixes

* tag 'perf-core-2023-08-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/x86/uncore: Remove unnecessary ?: operator around pcibios_err_to_errno() call
perf/x86/intel: Add Crestmont PMU
x86/cpu: Update Hybrids
x86/cpu: Fix Crestmont uarch
x86/cpu: Fix Gracemont uarch
perf: Remove unused extern declaration arch_perf_get_page_size()
perf: Remove unused PERF_PMU_CAP_HETEROGENEOUS_CPUS capability
arm_pmu: Remove unused PERF_PMU_CAP_HETEROGENEOUS_CPUS capability
perf/x86: Remove unused PERF_PMU_CAP_HETEROGENEOUS_CPUS capability
arm_pmu: Add PERF_PMU_CAP_EXTENDED_HW_TYPE capability
perf/x86/ibs: Set mem_lvl_num, mem_remote and mem_hops for data_src
perf/mem: Add PERF_MEM_LVLNUM_NA to PERF_MEM_NA
perf/mem: Introduce PERF_MEM_LVLNUM_UNC
perf/ring_buffer: Use local_try_cmpxchg in __perf_output_begin
locking/arch: Avoid variable shadowing in local_try_cmpxchg()
perf/core: Use local64_try_cmpxchg in perf_swevent_set_period
perf/x86: Use local64_try_cmpxchg
perf/amd: Prevent grouping of IBS events

show more ...


Revision tags: v6.5, v6.1.49, v6.1.48
# fdebffeb 23-Aug-2023 Dave Airlie <airlied@redhat.com>

BackMerge tag 'v6.5-rc7' into drm-next

Linux 6.5-rc7

This is needed for the CI stuff and the msm pull has fixes in it.

Signed-off-by: Dave Airlie <airlied@redhat.com>


# a3dd14c0 21-Aug-2023 Georgi Djakov <djakov@kernel.org>

Merge tag 'v6.5-rc6' into icc-next

The fixes that got merged into v6.5-rc6 are needed here.

Signed-off-by: Georgi Djakov <djakov@kernel.org>


Revision tags: v6.1.46, v6.1.45, v6.1.44
# 882cdb06 07-Aug-2023 Peter Zijlstra <peterz@infradead.org>

x86/cpu: Fix Gracemont uarch

Alderlake N is an E-core only product using Gracemont
micro-architecture. It fits the pre-existing naming scheme perfectly
fine, adhere to it.

Signed-off-by: Peter Zijl

x86/cpu: Fix Gracemont uarch

Alderlake N is an E-core only product using Gracemont
micro-architecture. It fits the pre-existing naming scheme perfectly
fine, adhere to it.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20230807150405.686834933@infradead.org

show more ...


# 2612e3bb 07-Aug-2023 Rodrigo Vivi <rodrigo.vivi@intel.com>

Merge drm/drm-next into drm-intel-next

Catching-up with drm-next and drm-intel-gt-next.
It will unblock a code refactor around the platform
definitions (names vs acronyms).

Signed-off-by: Rodrigo V

Merge drm/drm-next into drm-intel-next

Catching-up with drm-next and drm-intel-gt-next.
It will unblock a code refactor around the platform
definitions (names vs acronyms).

Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

show more ...


# 9f771739 07-Aug-2023 Joonas Lahtinen <joonas.lahtinen@linux.intel.com>

Merge drm/drm-next into drm-intel-gt-next

Need to pull in b3e4aae612ec ("drm/i915/hdcp: Modify hdcp_gsc_message msg sending mechanism") as
a dependency for https://patchwork.freedesktop.org/series/1

Merge drm/drm-next into drm-intel-gt-next

Need to pull in b3e4aae612ec ("drm/i915/hdcp: Modify hdcp_gsc_message msg sending mechanism") as
a dependency for https://patchwork.freedesktop.org/series/121735/

Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>

show more ...


# bf184299 04-Aug-2023 Arnaldo Carvalho de Melo <acme@redhat.com>

Merge remote-tracking branch 'torvalds/master' into perf-tools-next

To pick up the fixes that were just merged from perf-tools/perf-tools
for v6.5.

Signed-off-by: Arnaldo Carvalho de Melo <acme@red

Merge remote-tracking branch 'torvalds/master' into perf-tools-next

To pick up the fixes that were just merged from perf-tools/perf-tools
for v6.5.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

show more ...


Revision tags: v6.1.43
# 1346e933 31-Jul-2023 Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Merge 6.5-rc4 into char-misc-next

We need the char-misc fixes in here as well for testing.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>


# 014acf26 27-Jul-2023 Jakub Kicinski <kuba@kernel.org>

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Cross-merge networking fixes after downstream PR.

No conflicts or adjacent changes.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>


# 3b9adfbb 27-Jul-2023 Takashi Iwai <tiwai@suse.de>

Merge tag 'asoc-fix-v6.5-rc3' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Fixes for v6.5

A collection of device specific fixes, none particularly remarkabl

Merge tag 'asoc-fix-v6.5-rc3' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Fixes for v6.5

A collection of device specific fixes, none particularly remarkable.
There's a set of repetitive fixes for the RealTek drivers fixing an
issue with suspend that was replicated in multiple drivers.

show more ...


Revision tags: v6.1.42
# a32e0834 25-Jul-2023 Takashi Iwai <tiwai@suse.de>

Merge tag 'asoc-v6.6-early' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-next

ASoC: Updates for v6.6

Here's an initial batch of updates for ASoC for this release cycle.

Merge tag 'asoc-v6.6-early' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-next

ASoC: Updates for v6.6

Here's an initial batch of updates for ASoC for this release cycle.
We've got a bunch of new drivers in here, a bit of core work from
Morimoto-san and quite a lot of janitorial work. There's several
updates that pull in changes from other subsystems in order to build
on them:

- An adaptor to allow use of IIO DACs and ADCs in ASoC which pulls in
some IIO changes.
- Create a library function for intlog10() and use it in the NAU8825
driver.
- Include the ASoC tests, including the topology tests, in the default
KUnit full test coverage. This also involves enabling UML builds of
ALSA since that's the default KUnit test environment which pulls in
the addition of some stubs to the driver.
- More factoring out from Morimoto-san.
- Convert a lot of drivers to use the more modern maple tree register
cache.
- Support for AMD machines with MAX98388 and NAU8821, Cirrus Logic
CS35L36, Intel AVS machines with ES8336 and RT5663 and NXP i.MX93.

show more ...


Revision tags: v6.1.41
# 61b73694 24-Jul-2023 Thomas Zimmermann <tzimmermann@suse.de>

Merge drm/drm-next into drm-misc-next

Backmerging to get v6.5-rc2.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>


# 447281e7 23-Jul-2023 Mark Brown <broonie@kernel.org>

regulator: Merge up fixes from mainline

There's several things here that will really help my CI.


# 9c214af0 23-Jul-2023 Mark Brown <broonie@kernel.org>

regmap: Merge up fixes from mainline

There's several things here that will really help my CI.


# 0b201982 23-Jul-2023 Mark Brown <broonie@kernel.org>

spi: Merge up fixes from mainline

There's several things here that will really help my CI.


# de1b43a5 23-Jul-2023 Mark Brown <broonie@kernel.org>

ASoC: Merge up fixes from mainline

There's several things here that will really help my CI.


# 1477c794 23-Jul-2023 Mark Brown <broonie@kernel.org>

ASoC: Merge up fixes from mainline

There's several things here that will really help my CI.


Revision tags: v6.1.40
# 892d7c1b 21-Jul-2023 Linus Torvalds <torvalds@linux-foundation.org>

Merge tag 'pm-6.5-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management fixes from Rafael Wysocki:
"Revert three recent intel_idle commits that introduced a fu

Merge tag 'pm-6.5-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management fixes from Rafael Wysocki:
"Revert three recent intel_idle commits that introduced a functional
issue, included a coding mistake and have been questioned at the
design level"

* tag 'pm-6.5-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
Revert "intel_idle: Add support for using intel_idle in a VM guest using just hlt"
Revert "intel_idle: Add a "Long HLT" C1 state for the VM guest mode"
Revert "intel_idle: Add __init annotation to matchup_vm_state_with_baremetal()"

show more ...


# 5534f446 19-Jul-2023 Rafael J. Wysocki <rafael.j.wysocki@intel.com>

Revert "intel_idle: Add support for using intel_idle in a VM guest using just hlt"

This reverts commit 2f3d08f074b0 ("intel_idle: Add support for using
intel_idle in a VM guest using just hlt"), bec

Revert "intel_idle: Add support for using intel_idle in a VM guest using just hlt"

This reverts commit 2f3d08f074b0 ("intel_idle: Add support for using
intel_idle in a VM guest using just hlt"), because it causes functional
issues to appear and it is not really useful without a related commit
that got reverted previously.

Link: https://lore.kernel.org/linux-pm/5c7de6d5-7706-c4a5-7c41-146db1269aff@intel.com
Reported-by: Xiaoyao Li <xiaoyao.li@intel.com>
Requested-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

show more ...


12345678910>>...61