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intelblocks/systemagent: Add ACPI table generation hook 

In preparation of generating DMAR tables, provide the hook in SoC scope
for the systemagent to write ACPI tables. The complete functionality is
SoC-specific. Therefore the entry hook is defined as a weak function which
can be overridden by SoC code. If the SoC does not have support for
generating DMAR tables this hook will do no harm.

Change-Id: I1333ae2b79f1a855e6f3bb39bf534da170ddc9e1
Signed-off-by: Werner Zeh <werner.zeh@siemens.com>
Reviewed-on: https://review.coreboot.org/c/30989
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
This commit is contained in:
Werner Zeh 2018-12-14 13:09:12 +01:00 committed by Patrick Georgi
parent 251514d986
commit d12530cb83
2 changed files with 17 additions and 0 deletions
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5
src/soc/intel/common/block/include/intelblocks/acpi.h
View File

@ -81,6 +81,11 @@ uint32_t acpi_fill_soc_wake(uint32_t generic_pm1_en,
/* Chipset specific settings for filling up fadt table */
void soc_fill_fadt(acpi_fadt_t *fadt);
/* Chipset specific settings for filling up dmar table */
unsigned long sa_write_acpi_tables(struct device *dev,
unsigned long current,
struct acpi_rsdp *rsdp);
/* Return the polarity flag for SCI IRQ */
int soc_madt_sci_irq_polarity(int sci);

12
src/soc/intel/common/block/systemagent/systemagent.c
View File

@ -2,6 +2,7 @@
* This file is part of the coreboot project.
*
* Copyright (C) 2017-2018 Intel Corporation.
* Copyright (C) 2019 Siemens AG
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@ -18,6 +19,7 @@
#include <device/device.h>
#include <device/pci.h>
#include <device/pci_ids.h>
#include <intelblocks/acpi.h>
#include <intelblocks/systemagent.h>
#include <soc/iomap.h>
#include <soc/pci_devs.h>
@ -48,6 +50,13 @@ __weak size_t soc_reserved_mmio_size(void)
return 0;
}
__weak unsigned long sa_write_acpi_tables(struct device *dev,
unsigned long current,
struct acpi_rsdp *rsdp)
{
return current;
}
/*
* Add all known fixed MMIO ranges that hang off the host bridge/memory
* controller device.
@ -283,6 +292,9 @@ static struct device_operations systemagent_ops = {
.enable_resources = pci_dev_enable_resources,
.init = soc_systemagent_init,
.ops_pci = &pci_dev_ops_pci,
#if IS_ENABLED(CONFIG_HAVE_ACPI_TABLES)
.write_acpi_tables = sa_write_acpi_tables,
#endif
};
static const unsigned short systemagent_ids[] = {