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arch/x86/acpi: Add IVRS table generation routines

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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
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@@ -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;