diff options
| author | Jiaqing Zhao <jiaqing.zhao@linux.intel.com> | 2024-08-27 04:58:20 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2024-08-29 14:40:28 +0200 |
| commit | 36b531aace379f45e4ca763f7efb8d0295216e83 (patch) | |
| tree | 94524c17233eb05bf4b8c2f626b00d7b9c746ec2 /drivers/acpi/acpica/utxfinit.c | |
| parent | ACPICA: check null return of ACPI_ALLOCATE_ZEROED() in acpi_db_convert_to_pac... (diff) | |
| download | linux-36b531aace379f45e4ca763f7efb8d0295216e83.tar.xz linux-36b531aace379f45e4ca763f7efb8d0295216e83.zip | |
ACPICA: Detect FACS in reduced hardware build
According to Section 5.2.10 of ACPI Specification, FACS is optional
in reduced hardware model. Enable the detection for "Hardware-reduced
ACPI support only" build (CONFIG_ACPI_REDUCED_HARDWARE_ONLY=y) also.
Link: https://github.com/acpica/acpica/commit/ee53ed6b5452612bb44af542b68d605f8b2b1104
Signed-off-by: Jiaqing Zhao <jiaqing.zhao@linux.intel.com>
Link: https://patch.msgid.link/20240827025821.2099068-2-jiaqing.zhao@linux.intel.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/acpi/acpica/utxfinit.c')
| -rw-r--r-- | drivers/acpi/acpica/utxfinit.c | 24 |
1 files changed, 12 insertions, 12 deletions
diff --git a/drivers/acpi/acpica/utxfinit.c b/drivers/acpi/acpica/utxfinit.c index 1915bec2b279..70ae0afa7939 100644 --- a/drivers/acpi/acpica/utxfinit.c +++ b/drivers/acpi/acpica/utxfinit.c @@ -120,6 +120,18 @@ acpi_status ACPI_INIT_FUNCTION acpi_enable_subsystem(u32 flags) */ acpi_gbl_early_initialization = FALSE; + /* + * Obtain a permanent mapping for the FACS. This is required for the + * Global Lock and the Firmware Waking Vector + */ + if (!(flags & ACPI_NO_FACS_INIT)) { + status = acpi_tb_initialize_facs(); + if (ACPI_FAILURE(status)) { + ACPI_WARNING((AE_INFO, "Could not map the FACS table")); + return_ACPI_STATUS(status); + } + } + #if (!ACPI_REDUCED_HARDWARE) /* Enable ACPI mode */ @@ -138,18 +150,6 @@ acpi_status ACPI_INIT_FUNCTION acpi_enable_subsystem(u32 flags) } /* - * Obtain a permanent mapping for the FACS. This is required for the - * Global Lock and the Firmware Waking Vector - */ - if (!(flags & ACPI_NO_FACS_INIT)) { - status = acpi_tb_initialize_facs(); - if (ACPI_FAILURE(status)) { - ACPI_WARNING((AE_INFO, "Could not map the FACS table")); - return_ACPI_STATUS(status); - } - } - - /* * Initialize ACPI Event handling (Fixed and General Purpose) * * Note1: We must have the hardware and events initialized before we can |