For legal reasons, we can't pre-release any upcoming ACPI spec changes in ACPICA. -----Original Message----- From: Huacai Chen <chenhuacai@xxxxxxxxxxx> Sent: Monday, July 05, 2021 5:42 AM To: Rafael J . Wysocki <rjw@xxxxxxxxxxxxx>; Len Brown <lenb@xxxxxxxxxx>; Moore, Robert <robert.moore@xxxxxxxxx>; Erik Kaneda <erik.kaneda@xxxxxxxxx> Cc: linux-acpi@xxxxxxxxxxxxxxx; devel@xxxxxxxxxx; Xuefeng Li <lixuefeng@xxxxxxxxxxx>; Jiaxun Yang <jiaxun.yang@xxxxxxxxxxx>; Huacai Chen <chenhuacai@xxxxxxxxxxx>; Jianmin Lv <lvjianmin@xxxxxxxxxxx> Subject: [PATCH 2/3] ACPICA: MADT: Add LoongArch APICs support 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 and handlings. Reference: https://mantis.uefi.org/mantis/view.php?id=2203 Signed-off-by: Jianmin Lv <lvjianmin@xxxxxxxxxxx> Signed-off-by: Huacai Chen <chenhuacai@xxxxxxxxxxx> --- drivers/acpi/tables.c | 10 ++++ include/acpi/actbl2.h | 123 +++++++++++++++++++++++++++++++++++++++++- 2 files changed, 132 insertions(+), 1 deletion(-) diff --git a/drivers/acpi/tables.c b/drivers/acpi/tables.c index a37a1532a575..5943ae4f76bb 100644 --- a/drivers/acpi/tables.c +++ b/drivers/acpi/tables.c @@ -208,6 +208,16 @@ void acpi_table_print_madt_entry(struct acpi_subtable_header *header) } break; + case ACPI_MADT_TYPE_CORE_PIC: + { + struct acpi_madt_core_pic *p = + (struct acpi_madt_core_pic *)header; + pr_debug("CORE PIC (processor_id[0x%02x] core_id[0x%02x] %s)\n", + p->processor_id, p->core_id, + (p->flags & ACPI_MADT_ENABLED) ? "enabled" : "disabled"); + } + break; + default: pr_warn("Found unsupported MADT entry (type = 0x%x)\n", header->type); diff --git a/include/acpi/actbl2.h b/include/acpi/actbl2.h index 2069ac38a4e2..fd6d0b440c4b 100644 --- a/include/acpi/actbl2.h +++ b/include/acpi/actbl2.h @@ -571,7 +571,14 @@ 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 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 and greater are reserved */ }; /* @@ -801,6 +808,120 @@ struct acpi_madt_multiproc_wakeup_mailbox { #define ACPI_MP_WAKE_COMMAND_WAKEUP 1 +/* 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; + u32 processor_id; + u32 core_id; + u32 flags; + u8 version; +}; + +/* Legacy I/O Interrupt Controller */ + +struct acpi_madt_lio_pic { + struct acpi_subtable_header header; + u64 address; + u16 size; + u8 cascade[2]; + u32 cascade_map[2]; + u8 version; +}; + +/* Extend I/O Interrupt Controller */ + +struct acpi_madt_eio_pic { + struct acpi_subtable_header header; + u8 cascade; + u8 version; +}; + +/* HT Interrupt Controller */ + +struct acpi_madt_ht_pic { + struct acpi_subtable_header header; + u64 address; + u16 size; + u8 cascade[8]; + u8 version; +}; + +/* Bridge I/O Interrupt Controller */ + +struct acpi_madt_bio_pic { + struct acpi_subtable_header header; + u64 address; + u16 size; + u16 id; + u16 gsi_base; + u8 version; +}; + +/* MSI Interrupt Controller */ + +struct acpi_madt_msi_pic { + struct acpi_subtable_header header; + u64 msg_address; + u32 start; + u32 count; + u8 version; +}; + +/* LPC Interrupt Controller */ + +struct acpi_madt_lpc_pic { + struct acpi_subtable_header header; + u64 address; + u16 size; + u8 cascade; + u8 version; +}; + /* * Common flags fields for MADT subtables */ -- 2.27.0
