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>
diff --git a/src/soc/intel/common/block/systemagent/systemagent.c b/src/soc/intel/common/block/systemagent/systemagent.c
index a85bcab..299cc5f 100644
--- a/src/soc/intel/common/block/systemagent/systemagent.c
+++ b/src/soc/intel/common/block/systemagent/systemagent.c
@@ -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 @@
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 @@
.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[] = {