Linux Kernel https://git.stealer.net/cgit.cgi/user/sven/linux.git/atom?h=v6.12.10 2024-12-27T13:02:15Z 2024-12-27T13:02:15Z Naman Jain namjain@linux.microsoft.com 2024-09-17T05:39:17Z urn:sha1:bacd0498dea04be58804f428d9f8695777fde4c9 commit bcc80dec91ee745b3d66f3e48f0ec2efdea97149 upstream. read_hv_sched_clock_tsc() assumes that the Hyper-V clock counter is bigger than the variable hv_sched_clock_offset, which is cached during early boot, but depending on the timing this assumption may be false when a hibernated VM starts again (the clock counter starts from 0 again) and is resuming back (Note: hv_init_tsc_clocksource() is not called during hibernation/resume); consequently, read_hv_sched_clock_tsc() may return a negative integer (which is interpreted as a huge positive integer since the return type is u64) and new kernel messages are prefixed with huge timestamps before read_hv_sched_clock_tsc() grows big enough (which typically takes several seconds). Fix the issue by saving the Hyper-V clock counter just before the suspend, and using it to correct the hv_sched_clock_offset in resume. This makes hv tsc page based sched_clock continuous and ensures that post resume, it starts from where it left off during suspend. Override x86_platform.save_sched_clock_state and x86_platform.restore_sched_clock_state routines to correct this as soon as possible. Note: if Invariant TSC is available, the issue doesn't happen because 1) we don't register read_hv_sched_clock_tsc() for sched clock: See commit e5313f1c5404 ("clocksource/drivers/hyper-v: Rework clocksource and sched clock setup"); 2) the common x86 code adjusts TSC similarly: see __restore_processor_state() -> tsc_verify_tsc_adjust(true) and x86_platform.restore_sched_clock_state(). Cc: stable@vger.kernel.org Fixes: 1349401ff1aa ("clocksource/drivers/hyper-v: Suspend/resume Hyper-V clocksource for hibernation") Co-developed-by: Dexuan Cui <decui@microsoft.com> Signed-off-by: Dexuan Cui <decui@microsoft.com> Signed-off-by: Naman Jain <namjain@linux.microsoft.com> Reviewed-by: Michael Kelley <mhklinux@outlook.com> Link: https://lore.kernel.org/r/20240917053917.76787-1-namjain@linux.microsoft.com Signed-off-by: Wei Liu <wei.liu@kernel.org> Message-ID: <20240917053917.76787-1-namjain@linux.microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 2024-12-05T13:01:23Z Javier Carrasco javier.carrasco.cruz@gmail.com 2024-10-31T12:54:23Z urn:sha1:3fc6fc23d07dec0395b917d9d2ba364e60d988df [ Upstream commit e5cfc0989d9a2849c51c720a16b90b2c061a1aeb ] of_find_compatible_node() increments the node's refcount, and it must be decremented again with a call to of_node_put() when the pointer is no longer required to avoid leaking the resource. Instead of adding the missing calls to of_node_put() in all execution paths, use the cleanup attribute for 'arm_timer' by means of the __free() macro, which automatically calls of_node_put() when the variable goes out of scope. Fixes: 25de4ce5ed02 ("clocksource/drivers/timer-ti-dm: Handle dra7 timer wrap errata i940") Signed-off-by: Javier Carrasco <javier.carrasco.cruz@gmail.com> Link: https://lore.kernel.org/r/20241031-timer-ti-dm-systimer-of_node_put-v3-1-063ee822b73a@gmail.com Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Sasha Levin <sashal@kernel.org> 2024-12-05T13:01:23Z Mark Brown broonie@kernel.org 2024-10-01T11:23:56Z urn:sha1:bcede8bb508d2dd33cc7b1b54b8704d1bfa741af [ Upstream commit 0309f714a0908e947af1c902cf6a330cb593e75e ] The sp804 is currently only user selectable if COMPILE_TEST, this was done by commit dfc82faad725 ("clocksource/drivers/sp804: Add COMPILE_TEST to CONFIG_ARM_TIMER_SP804") in order to avoid it being spuriously offered on platforms that won't have the hardware since it's generally only seen on Arm based platforms. This config is overly restrictive, while platforms that rely on the SP804 do select it in their Kconfig there are others such as the Arm fast models which have a SP804 available but currently unused by Linux. Relax the dependency to allow it to be user selectable on arm and arm64 to avoid surprises and in case someone comes up with a use for extra timer hardware. Fixes: dfc82faad725 ("clocksource/drivers/sp804: Add COMPILE_TEST to CONFIG_ARM_TIMER_SP804") Reported-by: Ross Burton <ross.burton@arm.com> Reviewed-by: Sudeep Holla <sudeep.holla@arm.com> Acked-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20241001-arm64-vexpress-sp804-v3-1-0a2d3f7883e4@kernel.org Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Sasha Levin <sashal@kernel.org> 2024-09-17T13:27:01Z Linus Torvalds torvalds@linux-foundation.org 2024-09-17T13:27:01Z urn:sha1:fc1dc0d50780a9b215322bcc315f07ad8e4c6c13 Pull x86 timer updates from Thomas Gleixner: - Use the topology information of number of packages for making the decision about TSC trust instead of using the number of online nodes which is not reflecting the real topology. - Stop the PIT timer 0 when its not in use as to stop pointless emulation in the VMM. - Fix the PIT timer stop sequence for timer 0 so it truly stops both real hardware and buggy VMM emulations. * tag 'x86-timers-2024-09-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/tsc: Check for sockets instead of CPUs to make code match comment clockevents/drivers/i8253: Fix stop sequence for timer 0 x86/i8253: Disable PIT timer 0 when not in use x86/tsc: Use topology_max_packages() to get package number 2024-09-17T05:25:37Z Linus Torvalds torvalds@linux-foundation.org 2024-09-17T05:25:37Z urn:sha1:9ea925c806dbb8fee6797f59148daaf7f648832e Pull timer updates from Thomas Gleixner: "Core: - Overhaul of posix-timers in preparation of removing the workaround for periodic timers which have signal delivery ignored. - Remove the historical extra jiffie in msleep() msleep() adds an extra jiffie to the timeout value to ensure minimal sleep time. The timer wheel ensures minimal sleep time since the large rewrite to a non-cascading wheel, but the extra jiffie in msleep() remained unnoticed. Remove it. - Make the timer slack handling correct for realtime tasks. The procfs interface is inconsistent and does neither reflect reality nor conforms to the man page. Show the correct 0 slack for real time tasks and enforce it at the core level instead of having inconsistent individual checks in various timer setup functions. - The usual set of updates and enhancements all over the place. Drivers: - Allow the ACPI PM timer to be turned off during suspend - No new drivers - The usual updates and enhancements in various drivers" * tag 'timers-core-2024-09-16' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (43 commits) ntp: Make sure RTC is synchronized when time goes backwards treewide: Fix wrong singular form of jiffies in comments cpu: Use already existing usleep_range() timers: Rename next_expiry_recalc() to be unique platform/x86:intel/pmc: Fix comment for the pmc_core_acpi_pm_timer_suspend_resume function clocksource/drivers/jcore: Use request_percpu_irq() clocksource/drivers/cadence-ttc: Add missing clk_disable_unprepare in ttc_setup_clockevent clocksource/drivers/asm9260: Add missing clk_disable_unprepare in asm9260_timer_init clocksource/drivers/qcom: Add missing iounmap() on errors in msm_dt_timer_init() clocksource/drivers/ingenic: Use devm_clk_get_enabled() helpers platform/x86:intel/pmc: Enable the ACPI PM Timer to be turned off when suspended clocksource: acpi_pm: Add external callback for suspend/resume clocksource/drivers/arm_arch_timer: Using for_each_available_child_of_node_scoped() dt-bindings: timer: rockchip: Add rk3576 compatible timers: Annotate possible non critical data race of next_expiry timers: Remove historical extra jiffie for timeout in msleep() hrtimer: Use and report correct timerslack values for realtime tasks hrtimer: Annotate hrtimer_cpu_base_.*_expiry() for sparse. timers: Add sparse annotation for timer_sync_wait_running(). signal: Replace BUG_ON()s ... 2024-09-10T11:49:53Z Thomas Gleixner tglx@linutronix.de 2024-09-10T11:49:53Z urn:sha1:2f7eedca6cecbfad52d5b52c1550066d9252c947 To update with the latest fixes. 2024-09-09T16:31:55Z Linus Torvalds torvalds@linux-foundation.org 2024-09-09T16:31:55Z urn:sha1:fb92a1ffc121e65ffed13c6bfe01c190487d791e Pull hyperv fixes from Wei Liu: - Add a documentation overview of Confidential Computing VM support (Michael Kelley) - Use lapic timer in a TDX VM without paravisor (Dexuan Cui) - Set X86_FEATURE_TSC_KNOWN_FREQ when Hyper-V provides frequency (Michael Kelley) - Fix a kexec crash due to VP assist page corruption (Anirudh Rayabharam) - Python3 compatibility fix for lsvmbus (Anthony Nandaa) - Misc fixes (Rachel Menge, Roman Kisel, zhang jiao, Hongbo Li) * tag 'hyperv-fixes-signed-20240908' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux: hv: vmbus: Constify struct kobj_type and struct attribute_group tools: hv: rm .*.cmd when make clean x86/hyperv: fix kexec crash due to VP assist page corruption Drivers: hv: vmbus: Fix the misplaced function description tools: hv: lsvmbus: change shebang to use python3 x86/hyperv: Set X86_FEATURE_TSC_KNOWN_FREQ when Hyper-V provides frequency Documentation: hyperv: Add overview of Confidential Computing VM support clocksource: hyper-v: Use lapic timer in a TDX VM without paravisor Drivers: hv: Remove deprecated hv_fcopy declarations 2024-09-06T12:49:21Z Uros Bizjak ubizjak@gmail.com 2024-09-02T10:48:04Z urn:sha1:69a9dcbd2d65217cf52f55dc57b50845dc9d8d3f Use request_percpu_irq() instead of request_irq() to solve the following sparse warning: jcore-pit.c:173:40: warning: incorrect type in argument 5 (different address spaces) jcore-pit.c:173:40: expected void *dev jcore-pit.c:173:40: got struct jcore_pit [noderef] __percpu *static [assigned] [toplevel] jcore_pit_percpu Compile tested only. Signed-off-by: Uros Bizjak <ubizjak@gmail.com> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Rich Felker <dalias@libc.org> Link: https://lore.kernel.org/r/20240902104810.21080-1-ubizjak@gmail.com Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> 2024-09-06T12:49:21Z Gaosheng Cui cuigaosheng1@huawei.com 2024-08-03T06:42:53Z urn:sha1:2e02da1d86c97dfaa8ee083d98df1d069b28a526 Add the missing clk_disable_unprepare() before return in ttc_setup_clockevent(). Signed-off-by: Gaosheng Cui <cuigaosheng1@huawei.com> Reviewed-by: Michal Simek <michal.simek@amd.com> Link: https://lore.kernel.org/r/20240803064253.331946-3-cuigaosheng1@huawei.com Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> 2024-09-06T12:49:21Z Gaosheng Cui cuigaosheng1@huawei.com 2024-08-03T06:42:52Z urn:sha1:6cc11b65e5e0a6f1487274d1ad91088f7ac01d18 Add the missing clk_disable_unprepare() before return in asm9260_timer_init(). Signed-off-by: Gaosheng Cui <cuigaosheng1@huawei.com> Link: https://lore.kernel.org/r/20240803064253.331946-2-cuigaosheng1@huawei.com Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>