ACPICA: MADT: Add LoongArch APICs support

LoongArch inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I5OHOB

--------------------------------

LoongArch-specific interrupt controllers (similar to APIC) are added
in the next revision of ACPI Specification (current revision is 6.4),
which including CORE_PIC (CPUINTC), LIO_PIC (LIOINTC), EIO_PIC (EIOINTC),
HT_PIC (HTVECINTC), BIO_PIC (PCHINTC), LPC_PIC (PCHLPC) and MSI_PIC
(PCHMSI). This patch add their definition.

ACPI changes of LoongArch-specific interrupt controllers have already
been approved in the ECRs, and will be public in the next revision of
ACPI Specification.

Reference: https://mantis.uefi.org/mantis/view.php?id=2203
Reference: https://mantis.uefi.org/mantis/view.php?id=2313Signed-off-by: NJianmin Lv <lvjianmin@loongson.cn>
Signed-off-by: NHuacai Chen <chenhuacai@loongson.cn>

include/acpi/actbl2.h

@@ -518,7 +518,14 @@ enum acpi_madt_type {
 	ACPI_MADT_TYPE_GENERIC_MSI_FRAME = 13,
 	ACPI_MADT_TYPE_GENERIC_REDISTRIBUTOR = 14,
 	ACPI_MADT_TYPE_GENERIC_TRANSLATOR = 15,
-	ACPI_MADT_TYPE_RESERVED = 16,	/* 16 and greater are reserved */
+	ACPI_MADT_TYPE_CORE_PIC = 17,
+	ACPI_MADT_TYPE_LIO_PIC = 18,
+	ACPI_MADT_TYPE_HT_PIC = 19,
+	ACPI_MADT_TYPE_EIO_PIC = 20,
+	ACPI_MADT_TYPE_MSI_PIC = 21,
+	ACPI_MADT_TYPE_BIO_PIC = 22,
+	ACPI_MADT_TYPE_LPC_PIC = 23,
+	ACPI_MADT_TYPE_RESERVED = 24,	/* 24 to 0x7F are reserved */
     ACPI_MADT_TYPE_PHYTIUM_2500 = 128
 };
 
@@ -726,6 +733,124 @@ struct acpi_madt_generic_translator {
 	u32 reserved2;
 };
 
+/* Values for Version field above */
+
+enum acpi_madt_core_pic_version {
+	ACPI_MADT_CORE_PIC_VERSION_NONE = 0,
+	ACPI_MADT_CORE_PIC_VERSION_V1 = 1,
+	ACPI_MADT_CORE_PIC_VERSION_RESERVED = 2	/* 2 and greater are reserved */
+};
+
+enum acpi_madt_lio_pic_version {
+	ACPI_MADT_LIO_PIC_VERSION_NONE = 0,
+	ACPI_MADT_LIO_PIC_VERSION_V1 = 1,
+	ACPI_MADT_LIO_PIC_VERSION_RESERVED = 2	/* 2 and greater are reserved */
+};
+
+enum acpi_madt_eio_pic_version {
+	ACPI_MADT_EIO_PIC_VERSION_NONE = 0,
+	ACPI_MADT_EIO_PIC_VERSION_V1 = 1,
+	ACPI_MADT_EIO_PIC_VERSION_RESERVED = 2	/* 2 and greater are reserved */
+};
+
+enum acpi_madt_ht_pic_version {
+	ACPI_MADT_HT_PIC_VERSION_NONE = 0,
+	ACPI_MADT_HT_PIC_VERSION_V1 = 1,
+	ACPI_MADT_HT_PIC_VERSION_RESERVED = 2	/* 2 and greater are reserved */
+};
+
+enum acpi_madt_bio_pic_version {
+	ACPI_MADT_BIO_PIC_VERSION_NONE = 0,
+	ACPI_MADT_BIO_PIC_VERSION_V1 = 1,
+	ACPI_MADT_BIO_PIC_VERSION_RESERVED = 2	/* 2 and greater are reserved */
+};
+
+enum acpi_madt_msi_pic_version {
+	ACPI_MADT_MSI_PIC_VERSION_NONE = 0,
+	ACPI_MADT_MSI_PIC_VERSION_V1 = 1,
+	ACPI_MADT_MSI_PIC_VERSION_RESERVED = 2	/* 2 and greater are reserved */
+};
+
+enum acpi_madt_lpc_pic_version {
+	ACPI_MADT_LPC_PIC_VERSION_NONE = 0,
+	ACPI_MADT_LPC_PIC_VERSION_V1 = 1,
+	ACPI_MADT_LPC_PIC_VERSION_RESERVED = 2	/* 2 and greater are reserved */
+};
+
+/* Core Interrupt Controller */
+
+struct acpi_madt_core_pic {
+	struct acpi_subtable_header header;
+	u8 version;
+	u32 processor_id;
+	u32 core_id;
+	u32 flags;
+};
+
+/* Legacy I/O Interrupt Controller */
+
+struct acpi_madt_lio_pic {
+	struct acpi_subtable_header header;
+	u8 version;
+	u64 address;
+	u16 size;
+	u8 cascade[2];
+	u32 cascade_map[2];
+};
+
+/* Extend I/O Interrupt Controller */
+
+struct acpi_madt_eio_pic {
+	struct acpi_subtable_header header;
+	u8 version;
+	u8 cascade;
+	u8 node;
+	u64 node_map;
+};
+
+/* HT Interrupt Controller */
+
+struct acpi_madt_ht_pic {
+	struct acpi_subtable_header header;
+	u8 version;
+	u64 address;
+	u16 size;
+	u8 cascade[8];
+};
+
+/* Bridge I/O Interrupt Controller */
+
+struct acpi_madt_bio_pic {
+	struct acpi_subtable_header header;
+	u8 version;
+	u64 address;
+	u16 size;
+	u16 id;
+	u16 gsi_base;
+};
+
+/* MSI Interrupt Controller */
+
+struct acpi_madt_msi_pic {
+	struct acpi_subtable_header header;
+	u8 version;
+	u64 msg_address;
+	u32 start;
+	u32 count;
+};
+
+/* LPC Interrupt Controller */
+
+struct acpi_madt_lpc_pic {
+	struct acpi_subtable_header header;
+	u8 version;
+	u64 address;
+	u16 size;
+	u8 cascade;
+};
+
+/* 80: OEM data */
+
 /*
  * Common flags fields for MADT subtables
  */