[PATCH V14 01/15] ACPICA: MADT: Add LoongArch APICs support

Jianmin Lv
2022-07-03T08:45:52Z

From: Huacai Chen <chenhuacai@loongson.cn>

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=2313
Signed-off-by: Jianmin Lv <lvjianmin@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
---
include/acpi/actbl2.h | 127 +++++++++++++++++++++++++++++++++++++++++++++++++-
1 file changed, 125 insertions(+), 2 deletions(-)

diff --git a/include/acpi/actbl2.h b/include/acpi/actbl2.h
index 655102b..323bdd6 100644
--- a/include/acpi/actbl2.h
+++ b/include/acpi/actbl2.h
@@ -865,7 +865,14 @@ enum acpi_madt_type {
ACPI_MADT_TYPE_GENERIC_REDISTRIBUTOR = 14,
ACPI_MADT_TYPE_GENERIC_TRANSLATOR = 15,
ACPI_MADT_TYPE_MULTIPROC_WAKEUP = 16,
- ACPI_MADT_TYPE_RESERVED = 17, /* 17 to 0x7F 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_OEM_RESERVED = 0x80 /* 0x80 to 0xFF are reserved for OEM use */
};

@@ -1096,7 +1103,123 @@ struct acpi_madt_multiproc_wakeup_mailbox {

#define ACPI_MP_WAKE_COMMAND_WAKEUP 1

-/* 17: OEM data */
+/* 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 */

struct acpi_madt_oem_data {
u8 oem_data[0];
--
1.8.3.1