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: ee53ed6b54
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>
This commit is contained in:
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@ -29,11 +29,7 @@ ACPI_INIT_GLOBAL(u32, acpi_gbl_dsdt_index, ACPI_INVALID_TABLE_INDEX);
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ACPI_INIT_GLOBAL(u32, acpi_gbl_facs_index, ACPI_INVALID_TABLE_INDEX);
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ACPI_INIT_GLOBAL(u32, acpi_gbl_xfacs_index, ACPI_INVALID_TABLE_INDEX);
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ACPI_INIT_GLOBAL(u32, acpi_gbl_fadt_index, ACPI_INVALID_TABLE_INDEX);
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#if (!ACPI_REDUCED_HARDWARE)
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ACPI_GLOBAL(struct acpi_table_facs *, acpi_gbl_FACS);
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#endif /* !ACPI_REDUCED_HARDWARE */
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ACPI_INIT_GLOBAL(struct acpi_table_facs *, acpi_gbl_FACS, NULL);
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/* These addresses are calculated from the FADT Event Block addresses */
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@ -18,7 +18,6 @@ ACPI_MODULE_NAME("tbutils")
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static acpi_physical_address
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acpi_tb_get_root_table_entry(u8 *table_entry, u32 table_entry_size);
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#if (!ACPI_REDUCED_HARDWARE)
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/*******************************************************************************
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*
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* FUNCTION: acpi_tb_initialize_facs
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@ -56,7 +55,6 @@ acpi_status acpi_tb_initialize_facs(void)
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return (AE_OK);
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}
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#endif /* !ACPI_REDUCED_HARDWARE */
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/*******************************************************************************
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*
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@ -120,6 +120,18 @@ acpi_status ACPI_INIT_FUNCTION acpi_enable_subsystem(u32 flags)
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*/
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acpi_gbl_early_initialization = FALSE;
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/*
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* Obtain a permanent mapping for the FACS. This is required for the
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* Global Lock and the Firmware Waking Vector
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*/
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if (!(flags & ACPI_NO_FACS_INIT)) {
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status = acpi_tb_initialize_facs();
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if (ACPI_FAILURE(status)) {
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ACPI_WARNING((AE_INFO, "Could not map the FACS table"));
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return_ACPI_STATUS(status);
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}
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}
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#if (!ACPI_REDUCED_HARDWARE)
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/* Enable ACPI mode */
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@ -137,18 +149,6 @@ acpi_status ACPI_INIT_FUNCTION acpi_enable_subsystem(u32 flags)
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}
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}
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/*
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* Obtain a permanent mapping for the FACS. This is required for the
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* Global Lock and the Firmware Waking Vector
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*/
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if (!(flags & ACPI_NO_FACS_INIT)) {
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status = acpi_tb_initialize_facs();
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if (ACPI_FAILURE(status)) {
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ACPI_WARNING((AE_INFO, "Could not map the FACS table"));
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return_ACPI_STATUS(status);
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}
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}
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/*
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* Initialize ACPI Event handling (Fixed and General Purpose)
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*
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@ -67,7 +67,6 @@
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* General Purpose Events (GPEs)
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* Global Lock
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* ACPI PM timer
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* FACS table (Waking vectors and Global Lock)
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*/
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#ifndef ACPI_REDUCED_HARDWARE
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#define ACPI_REDUCED_HARDWARE FALSE
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