acpi: Add GTDT structs

Copied from Linux kernel.

Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Change-Id: I09f84e63346a270f1c7b77e8088b114800ff4864
Reviewed-on: https://review.coreboot.org/c/coreboot/+/75923
Reviewed-by: Tim Wawrzynczak <inforichland@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Arthur Heymans 2023-06-20 10:17:23 +02:00 committed by Lean Sheng Tan
parent a9a92ac961
commit 8193eabd8d
1 changed files with 97 additions and 0 deletions

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@ -1337,6 +1337,103 @@ _Static_assert(sizeof(acpi_spcr_t) == 88, "acpi_spcr_t must have an 88 byte size
#define ARMH_GIC_COMPATIBLE_INTERRUPT (1 << 3) #define ARMH_GIC_COMPATIBLE_INTERRUPT (1 << 3)
#define RISCV_PLIC_COMPATIBLE_INTERRUPT (1 << 4) #define RISCV_PLIC_COMPATIBLE_INTERRUPT (1 << 4)
/* GTDT - Generic Timer Description Table (ACPI 5.1) Version 2 */
typedef struct acpi_table_gtdt {
acpi_header_t header; /* Common ACPI table header */
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_el2_interrupt;
u32 non_secure_el2_flags;
u64 counter_read_block_address;
u32 platform_timer_count;
u32 platform_timer_offset;
} __packed acpi_gtdt_t;
/* 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)
struct acpi_gtdt_el2 {
u32 virtual_el2_timer_gsiv;
u32 virtual_el2_timer_flags;
};
/* Common GTDT subtable header */
struct acpi_gtdt_header {
u8 type;
u16 length;
} __packed;
/* Values for GTDT subtable type 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;
} __packed;
/* 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;
} __packed;
/* Flag Definitions: timer_flags and virtual_timer_flags above */
#define ACPI_GTDT_GT_IRQ_MODE (1)
#define ACPI_GTDT_GT_IRQ_POLARITY (1<<1)
/* 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;
} __packed;
/* 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)
uintptr_t get_coreboot_rsdp(void); uintptr_t get_coreboot_rsdp(void);
void acpi_create_einj(acpi_einj_t *einj, uintptr_t addr, u8 actions); void acpi_create_einj(acpi_einj_t *einj, uintptr_t addr, u8 actions);