ACPICA/ARM: ACPI 5.1: Update for FADT changes

Adds ARM flags and FADT minor revision. Graeme Gregory.

Signed-off-by: Graeme Gregory <graeme.gregory@linaro.org>
Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
[Linux commit 9eb1105babb8948c402ff785f5b43e35f79c0a0c]
Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org>
Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>

xen/include/acpi/actbl.h

@@ -244,7 +244,8 @@ struct acpi_table_fadt {
 	u32 flags;		/* Miscellaneous flag bits (see below for individual flags) */
 	struct acpi_generic_address reset_register;	/* 64-bit address of the Reset register */
 	u8 reset_value;		/* Value to write to the reset_register port to reset the system */
-	u8 reserved4[3];	/* Reserved, must be zero */
+	u16 arm_boot_flags;     /* ARM-Specific Boot Flags (see below for individual flags) (ACPI 5.1) */
+	u8 minor_revision;      /* FADT Minor Revision (ACPI 5.1) */
 	u64 Xfacs;		/* 64-bit physical address of FACS */
 	u64 Xdsdt;		/* 64-bit physical address of DSDT */
 	struct acpi_generic_address xpm1a_event_block;	/* 64-bit Extended Power Mgt 1a Event Reg Blk address */
@@ -260,7 +261,7 @@ struct acpi_table_fadt {
 	u64 hypervisor_id;      /* Hypervisor Vendor ID (ACPI 6.0) */
 };
 
-/* Masks for FADT Boot Architecture Flags (boot_flags) */
+/* Masks for FADT IA-PC Boot Architecture Flags (boot_flags) */
 
 #define ACPI_FADT_LEGACY_DEVICES    (1)  	/* 00: [V2] System has LPC or ISA bus devices */
 #define ACPI_FADT_8042              (1<<1)	/* 01: [V3] System has an 8042 controller on port 60/64 */
@@ -271,6 +272,11 @@ struct acpi_table_fadt {
 
 #define FADT2_REVISION_ID               3
 
+/* Masks for FADT ARM Boot Architecture Flags (arm_boot_flags) ACPI 5.1 */
+
+#define ACPI_FADT_PSCI_COMPLIANT    (1)        /* 00:  [V5+] PSCI 0.2+ is implemented */
+#define ACPI_FADT_PSCI_USE_HVC      (1<<1)     /* 01:  [V5+] HVC must be used instead of SMC as the PSCI conduit */
+
 /* Masks for FADT flags */
 
 #define ACPI_FADT_WBINVD            (1)	/* 00: [V1] The wbinvd instruction works properly */
@@ -347,7 +353,7 @@ enum acpi_prefered_pm_profiles {
  *     FADT V6 size: 0x114
  */
 #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_V2_SIZE       (u32) (ACPI_FADT_OFFSET (minor_revision) + 1)
 #define ACPI_FADT_V3_SIZE       (u32) (ACPI_FADT_OFFSET (sleep_control))
 #define ACPI_FADT_V5_SIZE       (u32) (ACPI_FADT_OFFSET (hypervisor_id))
 #define ACPI_FADT_V6_SIZE       (u32) (sizeof (struct acpi_table_fadt))