ACPI 5.0: Basic support for FADT version 5 (2355e10f) · Commits · 戴 / test

drivers/acpi/acpica/tbfadt.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -277,12 +277,12 @@ void acpi_tb_create_local_fadt(struct acpi_table_header *table, u32 length)
		{
		/*
		* Check if the FADT is larger than the largest table that we expect
		* (the ACPI 2.0/3.0 version). If so, truncate the table, and issue
		* (the ACPI 5.0 version). If so, truncate the table, and issue
		* a warning.
		*/
		if (length > sizeof(struct acpi_table_fadt)) {
		ACPI_WARNING((AE_INFO,
		"FADT (revision %u) is longer than ACPI 2.0 version, "
		"FADT (revision %u) is longer than ACPI 5.0 version, "
		"truncating length %u to %u",
		table->revision, length,
		(u32)sizeof(struct acpi_table_fadt)));

include/acpi/actbl.h

+16 −6

Original line number	Diff line number	Diff line
		@@ -255,6 +255,8 @@ struct acpi_table_fadt {
		struct acpi_generic_address xpm_timer_block; /* 64-bit Extended Power Mgt Timer Ctrl Reg Blk address */
		struct acpi_generic_address xgpe0_block; /* 64-bit Extended General Purpose Event 0 Reg Blk address */
		struct acpi_generic_address xgpe1_block; /* 64-bit Extended General Purpose Event 1 Reg Blk address */
		struct acpi_generic_address sleep_control; /* 64-bit Sleep Control register */
		struct acpi_generic_address sleep_status; /* 64-bit Sleep Status register */
		};

		/* Masks for FADT Boot Architecture Flags (boot_flags) */
		@@ -264,6 +266,7 @@ struct acpi_table_fadt {
		#define ACPI_FADT_NO_VGA (1<<2) /* 02: [V4] It is not safe to probe for VGA hardware */
		#define ACPI_FADT_NO_MSI (1<<3) /* 03: [V4] Message Signaled Interrupts (MSI) must not be enabled */
		#define ACPI_FADT_NO_ASPM (1<<4) /* 04: [V4] PCIe ASPM control must not be enabled */
		#define ACPI_FADT_NO_CMOS_RTC (1<<5) /* 05: [V5] No CMOS real-time clock present */

		#define FADT2_REVISION_ID 3

		@@ -289,6 +292,8 @@ struct acpi_table_fadt {
		#define ACPI_FADT_REMOTE_POWER_ON (1<<17) /* 17: [V4] System is compatible with remote power on (ACPI 3.0) */
		#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) */
		#define ACPI_FADT_HW_REDUCED (1<<20) /* 20: [V5] ACPI hardware is not implemented (ACPI 5.0) */
		#define ACPI_FADT_LOW_POWER_S0 (1<<21) /* 21: [V5] S0 power savings are equal or better than S3 (ACPI 5.0) */

		/* Values for preferred_profile (Preferred Power Management Profiles) */

		@@ -299,14 +304,16 @@ enum acpi_prefered_pm_profiles {
		PM_WORKSTATION = 3,
		PM_ENTERPRISE_SERVER = 4,
		PM_SOHO_SERVER = 5,
		PM_APPLIANCE_PC = 6
		PM_APPLIANCE_PC = 6,
		PM_PERFORMANCE_SERVER = 7,
		PM_TABLET = 8
		};

		/* Reset to default packing */

		#pragma pack()

		#define ACPI_FADT_OFFSET(f) (u8) ACPI_OFFSET (struct acpi_table_fadt, f)
		#define ACPI_FADT_OFFSET(f) (u16) ACPI_OFFSET (struct acpi_table_fadt, f)

		/*
		* Internal table-related structures
		@@ -351,12 +358,15 @@ struct acpi_table_desc {
		* 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
		* FADT V1 size: 0x074
		* FADT V2 size: 0x084
		* FADT V3 size: 0x0F4
		* FADT V4 size: 0x0F4
		* FADT V5 size: 0x10C
		*/
		#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))
		#define ACPI_FADT_V3_SIZE (u32) (ACPI_FADT_OFFSET (sleep_control))
		#define ACPI_FADT_V5_SIZE (u32) (sizeof (struct acpi_table_fadt))

		#endif /* __ACTBL_H__ */

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