Huacai Chen d49ab6857d LoongArch: Fix warnings during S3 suspend ... [ Upstream commit 26c0a2d93af55d30a46d5f45d3e9c42cde730168 ] The enable_gpe_wakeup() function calls acpi_enable_all_wakeup_gpes(), and the later one may call the preempt_schedule_common() function, resulting in a thread switch and causing the CPU to be in an interrupt enabled state after the enable_gpe_wakeup() function returns, leading to the warnings as follow. [ C0] WARNING: ... at kernel/time/timekeeping.c:845 ktime_get+0xbc/0xc8 [ C0] ... [ C0] Call Trace: [ C0] [<90000000002243b4>] show_stack+0x64/0x188 [ C0] [<900000000164673c>] dump_stack_lvl+0x60/0x88 [ C0] [<90000000002687e4>] __warn+0x8c/0x148 [ C0] [<90000000015e9978>] report_bug+0x1c0/0x2b0 [ C0] [<90000000016478e4>] do_bp+0x204/0x3b8 [ C0] [<90000000025b1924>] exception_handlers+0x1924/0x10000 [ C0] [<9000000000343bbc>] ktime_get+0xbc/0xc8 [ C0] [<9000000000354c08>] tick_sched_timer+0x30/0xb0 [ C0] [<90000000003408e0>] __hrtimer_run_queues+0x160/0x378 [ C0] [<9000000000341f14>] hrtimer_interrupt+0x144/0x388 [ C0] [<9000000000228348>] constant_timer_interrupt+0x38/0x48 [ C0] [<90000000002feba4>] __handle_irq_event_percpu+0x64/0x1e8 [ C0] [<90000000002fed48>] handle_irq_event_percpu+0x20/0x80 [ C0] [<9000000000306b9c>] handle_percpu_irq+0x5c/0x98 [ C0] [<90000000002fd4a0>] generic_handle_domain_irq+0x30/0x48 [ C0] [<9000000000d0c7b0>] handle_cpu_irq+0x70/0xa8 [ C0] [<9000000001646b30>] handle_loongarch_irq+0x30/0x48 [ C0] [<9000000001646bc8>] do_vint+0x80/0xe0 [ C0] [<90000000002aea1c>] finish_task_switch.isra.0+0x8c/0x2a8 [ C0] [<900000000164e34c>] __schedule+0x314/0xa48 [ C0] [<900000000164ead8>] schedule+0x58/0xf0 [ C0] [<9000000000294a2c>] worker_thread+0x224/0x498 [ C0] [<900000000029d2f0>] kthread+0xf8/0x108 [ C0] [<9000000000221f28>] ret_from_kernel_thread+0xc/0xa4 [ C0] [ C0] ---[ end trace 0000000000000000 ]--- The root cause is acpi_enable_all_wakeup_gpes() uses a mutex to protect acpi_hw_enable_all_wakeup_gpes(), and acpi_ut_acquire_mutex() may cause a thread switch. Since there is no longer concurrent execution during loongarch_acpi_suspend(), we can call acpi_hw_enable_all_wakeup_gpes() directly in enable_gpe_wakeup(). The solution is similar to commit 22db06337f ("ACPI: sleep: Avoid breaking S3 wakeup due to might_sleep()"). Fixes: 366bb35a8e ("LoongArch: Add suspend (ACPI S3) support") Signed-off-by: Qunqin Zhao <zhaoqunqin@loongson.cn> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn> Signed-off-by: Sasha Levin <sashal@kernel.org>		2025-02-08 09:52:27 +01:00
..
platform	ACPICA: fix for conflict macro definition on zephyr interface	2023-07-10 15:21:04 +02:00
acbuffer.h	ACPICA: Update all copyrights/signons to 2023	2023-04-06 20:29:11 +02:00
acconfig.h	ACPICA: Update all copyrights/signons to 2023	2023-04-06 20:29:11 +02:00
acexcep.h	ACPICA: Update all copyrights/signons to 2023	2023-04-06 20:29:11 +02:00
acnames.h	ACPICA: Detect GED device and keep track of _EVT	2023-07-10 18:33:47 +02:00
acoutput.h	ACPICA: Update all copyrights/signons to 2023	2023-04-06 20:29:11 +02:00
acpi_bus.h	ACPI: x86: Move acpi_quirk_skip_serdev_enumeration() out of CONFIG_X86_ANDROID_TABLETS	2024-04-13 13:07:31 +02:00
acpi_drivers.h	ACPI: platform: Move SMB0001 HID to the header and reuse	2023-07-04 19:28:20 +02:00
acpi_io.h
acpi_lpat.h
acpi_numa.h	ACPI: processor: Replace kernel.h with the necessary inclusions	2021-11-24 17:44:04 +01:00
acpi.h	ACPICA: Update all copyrights/signons to 2023	2023-04-06 20:29:11 +02:00
acpiosxf.h	ACPICA: Update all copyrights/signons to 2023	2023-04-06 20:29:11 +02:00
acpixf.h	LoongArch: Fix warnings during S3 suspend	2025-02-08 09:52:27 +01:00
acrestyp.h	ACPICA: acpi_resource_irq: Replace 1-element arrays with flexible array	2023-04-06 20:29:12 +02:00
actbl.h	ACPI: CPPC: Add definition for undefined FADT preferred PM profile value	2023-06-21 18:44:56 +02:00
actbl1.h	ACPICA: Fix misspelled CDAT DSMAS define	2023-07-10 18:49:16 +02:00
actbl2.h	ACPICA: RHCT: Add flags, CMO and MMU nodes	2023-07-10 18:49:16 +02:00
actbl3.h	ACPICA: Add a define for size of struct acpi_srat_generic_affinity device_handle	2023-07-10 18:49:16 +02:00
actypes.h	ACPI updates for 6.4-rc1	2023-04-25 18:37:41 -07:00
acuuid.h	ACPICA: Update all copyrights/signons to 2023	2023-04-06 20:29:11 +02:00
apei.h	ACPI: APEI: Fix missing ERST record id	2022-04-13 20:29:24 +02:00
battery.h	ACPI: battery: Pass battery hook pointer to hook callbacks	2022-11-16 08:48:18 +01:00
button.h
cppc_acpi.h	ACPI: CPPC: Make rmw_lock a raw_spin_lock	2024-11-08 16:28:20 +01:00
ghes.h	ACPI: APEI: Fix AER info corruption when error status data has multiple sections	2023-11-28 17:19:37 +00:00
hed.h
nfit.h
pcc.h	mailbox: pcc: Check before sending MCTP PCC response ACK	2025-01-09 13:31:45 +01:00
proc_cap_intel.h	ACPI: processor: Introduce acpi_processor_osc()	2023-07-14 17:59:40 +02:00
processor.h	cpu-hotplug: Provide prototypes for arch CPU registration	2023-10-11 14:27:37 +02:00
reboot.h
video.h	ACPI: video: Remove register_backlight_delay module option and code	2023-04-11 20:55:46 +02:00