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| author | Huacai Chen <chenhuacai@loongson.cn> | 2025-09-12 21:54:53 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-10-19 16:30:56 +0200 |
| commit | f775f821de46e870fda5ff32437a879f5b217ad7 (patch) | |
| tree | 6e861e8eb47317f4ed1511fac943109bbcbf5e35 /drivers/acpi | |
| parent | 720a66fdaa6ce3d68e5ad4a469fd428a8d7ce571 (diff) | |
| download | linux-f775f821de46e870fda5ff32437a879f5b217ad7.tar.gz linux-f775f821de46e870fda5ff32437a879f5b217ad7.tar.bz2 linux-f775f821de46e870fda5ff32437a879f5b217ad7.zip | |
ACPICA: Allow to skip Global Lock initialization
commit feb8ae81b2378b75a99c81d315602ac8918ed382 upstream.
Introduce acpi_gbl_use_global_lock, which allows to skip the Global Lock
initialization. This is useful for systems without Global Lock (such as
loong_arch), so as to avoid error messages during boot phase:
ACPI Error: Could not enable global_lock event (20240827/evxfevnt-182)
ACPI Error: No response from Global Lock hardware, disabling lock (20240827/evglock-59)
Link: https://github.com/acpica/acpica/commit/463cb0fe
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cc: Huacai Chen <chenhuacai@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/acpi')
| -rw-r--r-- | drivers/acpi/acpica/evglock.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/acpi/acpica/evglock.c b/drivers/acpi/acpica/evglock.c index 989dc01af03f..bc205b330904 100644 --- a/drivers/acpi/acpica/evglock.c +++ b/drivers/acpi/acpica/evglock.c @@ -42,6 +42,10 @@ acpi_status acpi_ev_init_global_lock_handler(void) return_ACPI_STATUS(AE_OK); } + if (!acpi_gbl_use_global_lock) { + return_ACPI_STATUS(AE_OK); + } + /* Attempt installation of the global lock handler */ status = acpi_install_fixed_event_handler(ACPI_EVENT_GLOBAL, |