diff options
Diffstat (limited to 'include/acpi/actbl.h')
| -rw-r--r-- | include/acpi/actbl.h | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/include/acpi/actbl.h b/include/acpi/actbl.h index 7e42bfee0e29..f1380287ed4d 100644 --- a/include/acpi/actbl.h +++ b/include/acpi/actbl.h @@ -290,7 +290,7 @@ struct acpi_table_fadt { #define ACPI_FADT_APIC_CLUSTER (1<<18) /* 18: [V4] All local APICs must use cluster model (ACPI 3.0) */ #define ACPI_FADT_APIC_PHYSICAL (1<<19) /* 19: [V4] All local x_aPICs must use physical dest mode (ACPI 3.0) */ -/* Values for preferred_profile (Prefered Power Management Profiles) */ +/* Values for preferred_profile (Preferred Power Management Profiles) */ enum acpi_prefered_pm_profiles { PM_UNSPECIFIED = 0, @@ -343,4 +343,20 @@ struct acpi_table_desc { #include <acpi/actbl1.h> #include <acpi/actbl2.h> +/* + * Sizes of the various flavors of FADT. We need to look closely + * at the FADT length because the version number essentially tells + * us nothing because of many BIOS bugs where the version does not + * match the expected length. In other words, the length of the + * FADT is the bottom line as to what the version really is. + * + * For reference, the values below are as follows: + * FADT V1 size: 0x74 + * FADT V2 size: 0x84 + * FADT V3+ size: 0xF4 + */ +#define ACPI_FADT_V1_SIZE (u32) (ACPI_FADT_OFFSET (flags) + 4) +#define ACPI_FADT_V2_SIZE (u32) (ACPI_FADT_OFFSET (reserved4[0]) + 3) +#define ACPI_FADT_V3_SIZE (u32) (sizeof (struct acpi_table_fadt)) + #endif /* __ACTBL_H__ */ |