1 files changed, 102 insertions, 16 deletions

diff --git a/include/acpi/actbl3.h b/include/acpi/actbl3.h
index c2295cc4a5c0..787bcc814463 100644
--- a/include/acpi/actbl3.h
+++ b/include/acpi/actbl3.h
@@ -241,33 +241,96 @@ struct acpi_s3pt_suspend {
 
 /*******************************************************************************
  *
- * GTDT - Generic Timer Description Table (ACPI 5.0)
- *        Version 1
+ * GTDT - Generic Timer Description Table (ACPI 5.1)
+ *        Version 2
  *
  ******************************************************************************/
 
 struct acpi_table_gtdt {
         struct acpi_table_header header;        /* Common ACPI table header */
-        u64 address;
-        u32 flags;
-        u32 secure_pl1_interrupt;
-        u32 secure_pl1_flags;
-        u32 non_secure_pl1_interrupt;
-        u32 non_secure_pl1_flags;
+        u64 counter_block_addresss;
+        u32 reserved;
+        u32 secure_el1_interrupt;
+        u32 secure_el1_flags;
+        u32 non_secure_el1_interrupt;
+        u32 non_secure_el1_flags;
         u32 virtual_timer_interrupt;
         u32 virtual_timer_flags;
-        u32 non_secure_pl2_interrupt;
-        u32 non_secure_pl2_flags;
+        u32 non_secure_el2_interrupt;
+        u32 non_secure_el2_flags;
+        u64 counter_read_block_address;
+        u32 platform_timer_count;
+        u32 platform_timer_offset;
 };
 
-/* Values for Flags field above */
+/* Flag Definitions: Timer Block Physical Timers and Virtual timers */
+
+#define ACPI_GTDT_INTERRUPT_MODE        (1)
+#define ACPI_GTDT_INTERRUPT_POLARITY    (1<<1)
+#define ACPI_GTDT_ALWAYS_ON             (1<<2)
+
+/* Common GTDT subtable header */
+
+struct acpi_gtdt_header {
+        u8 type;
+        u16 length;
+};
 
-#define ACPI_GTDT_MAPPED_BLOCK_PRESENT      1
+/* Values for GTDT subtable type above */
 
-/* Values for all "TimerFlags" fields above */
+enum acpi_gtdt_type {
+        ACPI_GTDT_TYPE_TIMER_BLOCK = 0,
+        ACPI_GTDT_TYPE_WATCHDOG = 1,
+        ACPI_GTDT_TYPE_RESERVED = 2     /* 2 and greater are reserved */
+};
+
+/* GTDT Subtables, correspond to Type in struct acpi_gtdt_header */
+
+/* 0: Generic Timer Block */
+
+struct acpi_gtdt_timer_block {
+        struct acpi_gtdt_header header;
+        u8 reserved;
+        u64 block_address;
+        u32 timer_count;
+        u32 timer_offset;
+};
+
+/* Timer Sub-Structure, one per timer */
+
+struct acpi_gtdt_timer_entry {
+        u8 frame_number;
+        u8 reserved[3];
+        u64 base_address;
+        u64 el0_base_address;
+        u32 timer_interrupt;
+        u32 timer_flags;
+        u32 virtual_timer_interrupt;
+        u32 virtual_timer_flags;
+        u32 common_flags;
+};
 
-#define ACPI_GTDT_INTERRUPT_MODE            1
-#define ACPI_GTDT_INTERRUPT_POLARITY        2
+/* Flag Definitions: common_flags above */
+
+#define ACPI_GTDT_GT_IS_SECURE_TIMER    (1)
+#define ACPI_GTDT_GT_ALWAYS_ON          (1<<1)
+
+/* 1: SBSA Generic Watchdog Structure */
+
+struct acpi_gtdt_watchdog {
+        struct acpi_gtdt_header header;
+        u8 reserved;
+        u64 refresh_frame_address;
+        u64 control_frame_address;
+        u32 timer_interrupt;
+        u32 timer_flags;
+};
+
+/* Flag Definitions: timer_flags above */
+
+#define ACPI_GTDT_WATCHDOG_IRQ_MODE         (1)
+#define ACPI_GTDT_WATCHDOG_IRQ_POLARITY     (1<<1)
+#define ACPI_GTDT_WATCHDOG_SECURE           (1<<2)
 
 /*******************************************************************************
  *
@@ -385,7 +448,8 @@ struct acpi_table_pcct {
 
 enum acpi_pcct_type {
         ACPI_PCCT_TYPE_GENERIC_SUBSPACE = 0,
-        ACPI_PCCT_TYPE_RESERVED = 1     /* 1 and greater are reserved */
+        ACPI_PCCT_TYPE_HW_REDUCED_SUBSPACE = 1,
+        ACPI_PCCT_TYPE_RESERVED = 2     /* 2 and greater are reserved */
 };
 
 /*
@@ -407,6 +471,28 @@ struct acpi_pcct_subspace {
         u16 min_turnaround_time;
 };
 
+/* 1: HW-reduced Communications Subspace (ACPI 5.1) */
+
+struct acpi_pcct_hw_reduced {
+        struct acpi_subtable_header header;
+        u32 doorbell_interrupt;
+        u8 flags;
+        u8 reserved;
+        u64 base_address;
+        u64 length;
+        struct acpi_generic_address doorbell_register;
+        u64 preserve_mask;
+        u64 write_mask;
+        u32 latency;
+        u32 max_access_rate;
+        u16 min_turnaround_time;
+};
+
+/* Values for doorbell flags above */
+
+#define ACPI_PCCT_INTERRUPT_POLARITY    (1)
+#define ACPI_PCCT_INTERRUPT_MODE        (1<<1)
+
 /*
  * PCC memory structures (not part of the ACPI table)
  */