diff options
| author | Huang Yiwei <quic_hyiwei@quicinc.com> | 2025-05-07 12:57:57 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-06-19 15:39:34 +0200 |
| commit | 894eafea66c32a0dff717793b2537387020e213b (patch) | |
| tree | 9c42d5c56a4e0eb8cae5dec6307ad166f27aa806 /include/linux/arm_sdei.h | |
| parent | d2323763148448510c32c1e43eb3843b4215ba43 (diff) | |
firmware: SDEI: Allow sdei initialization without ACPI_APEI_GHES
[ Upstream commit 59529bbe642de4eb2191a541d9b4bae7eb73862e ]
SDEI usually initialize with the ACPI table, but on platforms where
ACPI is not used, the SDEI feature can still be used to handle
specific firmware calls or other customized purposes. Therefore, it
is not necessary for ARM_SDE_INTERFACE to depend on ACPI_APEI_GHES.
In commit dc4e8c07e9e2 ("ACPI: APEI: explicit init of HEST and GHES
in acpi_init()"), to make APEI ready earlier, sdei_init was moved
into acpi_ghes_init instead of being a standalone initcall, adding
ACPI_APEI_GHES dependency to ARM_SDE_INTERFACE. This restricts the
flexibility and usability of SDEI.
This patch corrects the dependency in Kconfig and splits sdei_init()
into two separate functions: sdei_init() and acpi_sdei_init().
sdei_init() will be called by arch_initcall and will only initialize
the platform driver, while acpi_sdei_init() will initialize the
device from acpi_ghes_init() when ACPI is ready. This allows the
initialization of SDEI without ACPI_APEI_GHES enabled.
Fixes: dc4e8c07e9e2 ("ACPI: APEI: explicit init of HEST and GHES in apci_init()")
Cc: Shuai Xue <xueshuai@linux.alibaba.com>
Signed-off-by: Huang Yiwei <quic_hyiwei@quicinc.com>
Reviewed-by: Shuai Xue <xueshuai@linux.alibaba.com>
Reviewed-by: Gavin Shan <gshan@redhat.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Link: https://lore.kernel.org/r/20250507045757.2658795-1-quic_hyiwei@quicinc.com
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'include/linux/arm_sdei.h')
| -rw-r--r-- | include/linux/arm_sdei.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/include/linux/arm_sdei.h b/include/linux/arm_sdei.h index 255701e1251b..f652a5028b59 100644 --- a/include/linux/arm_sdei.h +++ b/include/linux/arm_sdei.h @@ -46,12 +46,12 @@ int sdei_unregister_ghes(struct ghes *ghes); /* For use by arch code when CPU hotplug notifiers are not appropriate. */ int sdei_mask_local_cpu(void); int sdei_unmask_local_cpu(void); -void __init sdei_init(void); +void __init acpi_sdei_init(void); void sdei_handler_abort(void); #else static inline int sdei_mask_local_cpu(void) { return 0; } static inline int sdei_unmask_local_cpu(void) { return 0; } -static inline void sdei_init(void) { } +static inline void acpi_sdei_init(void) { } static inline void sdei_handler_abort(void) { } #endif /* CONFIG_ARM_SDE_INTERFACE */ |