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arch/x86/acpi: Add IVRS table generation routines 

Change-Id: Ia5d97d01dc9ddc45f81d998d126d592a915b4a75
Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
Reviewed-on: http://review.coreboot.org/12043
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
This commit is contained in:
Timothy Pearson 2015-08-11 17:48:32 -05:00 committed by Martin Roth
parent a52d5d1269
commit ff8ccf05b0
2 changed files with 56 additions and 0 deletions
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25
src/arch/x86/acpi.c
View File

@ -6,6 +6,7 @@
*
* Copyright (C) 2004 SUSE LINUX AG
* Copyright (C) 2005-2009 coresystems GmbH
* Copyright (C) 2015 Timothy Pearson <tpearson@raptorengineeringinc.com>, Raptor Engineering
*
* ACPI FADT, FACS, and DSDT table support added by
* Nick Barker <nick.barker9@btinternet.com>, and those portions
@ -531,6 +532,30 @@ void acpi_create_hpet(acpi_hpet_t *hpet)
header->checksum = acpi_checksum((void *)hpet, sizeof(acpi_hpet_t));
}
void acpi_create_ivrs(acpi_ivrs_t *ivrs,
unsigned long (*acpi_fill_ivrs)(acpi_ivrs_t* ivrs_struct, unsigned long current))
{
acpi_header_t *header = &(ivrs->header);
unsigned long current = (unsigned long)ivrs + sizeof(acpi_ivrs_t);
memset((void *)ivrs, 0, sizeof(acpi_ivrs_t));
/* Fill out header fields. */
memcpy(header->signature, "IVRS", 4);
memcpy(header->oem_id, OEM_ID, 6);
memcpy(header->oem_table_id, ACPI_TABLE_CREATOR, 8);
memcpy(header->asl_compiler_id, ASLC, 4);
header->length = sizeof(acpi_ivrs_t);
header->revision = 1; /* ACPI 1.0: N/A, ACPI 2.0/3.0/4.0: 1 */
current = acpi_fill_ivrs(ivrs, current);
/* (Re)calculate length and checksum. */
header->length = current - (unsigned long)ivrs;
header->checksum = acpi_checksum((void *)ivrs, header->length);
}
unsigned long acpi_write_hpet(device_t device, unsigned long current, acpi_rsdp_t *rsdp)
{
acpi_hpet_t *hpet;

31
src/arch/x86/include/arch/acpi.h
View File

@ -4,6 +4,7 @@
* Copyright (C) 2004 SUSE LINUX AG
* Copyright (C) 2004 Nick Barker
* Copyright (C) 2008-2009 coresystems GmbH
* Copyright (C) 2015 Timothy Pearson <tpearson@raptorengineeringinc.com>, Raptor Engineering
* (Written by Stefan Reinauer <stepan@coresystems.de>)
*
* This program is free software; you can redistribute it and/or modify
@ -190,6 +191,32 @@ typedef struct acpi_madt {
u32 flags; /* Multiple APIC flags */
} __attribute__ ((packed)) acpi_madt_t;
typedef struct acpi_ivrs_info {
} __attribute__ ((packed)) acpi_ivrs_info_t;
/* IVRS IVHD (I/O Virtualization Hardware Definition Block) */
typedef struct acpi_ivrs_ivhd {
uint8_t type;
uint8_t flags;
uint16_t length;
uint16_t device_id;
uint16_t capability_offset;
uint32_t iommu_base_low;
uint32_t iommu_base_high;
uint16_t pci_segment_group;
uint16_t iommu_info;
uint32_t efr;
uint8_t entry[0];
} __attribute__ ((packed)) acpi_ivrs_ivhd_t;
/* IVRS (I/O Virtualization Reporting Structure) */
typedef struct acpi_ivrs {
struct acpi_table_header header;
uint32_t iv_info;
uint32_t reserved[2];
struct acpi_ivrs_ivhd ivhd;
} __attribute__ ((packed)) acpi_ivrs_t;
enum dev_scope_type {
SCOPE_PCI_ENDPOINT = 1,
SCOPE_PCI_SUB = 2,
@ -498,6 +525,7 @@ unsigned long fw_cfg_acpi_tables(unsigned long start);
unsigned long write_acpi_tables(unsigned long addr);
unsigned long acpi_fill_madt(unsigned long current);
unsigned long acpi_fill_mcfg(unsigned long current);
unsigned long acpi_fill_ivrs_ioapic(acpi_ivrs_t* ivrs, unsigned long current);
void acpi_create_ssdt_generator(acpi_header_t *ssdt, const char *oem_table_id);
void acpi_create_fadt(acpi_fadt_t *fadt,acpi_facs_t *facs, void *dsdt);
#if IS_ENABLED(CONFIG_COMMON_FADT)
@ -536,6 +564,9 @@ void acpi_create_srat(acpi_srat_t *srat,
void acpi_create_slit(acpi_slit_t *slit,
unsigned long (*acpi_fill_slit)(unsigned long current));
void acpi_create_ivrs(acpi_ivrs_t *ivrs,
unsigned long (*acpi_fill_ivrs)(acpi_ivrs_t* ivrs_struct, unsigned long current));
#if ENV_RAMSTAGE
void acpi_create_hpet(acpi_hpet_t *hpet);
unsigned long acpi_write_hpet(device_t device, unsigned long start, acpi_rsdp_t *rsdp);