<p>Werner Zeh has uploaded this change for <strong>review</strong>.</p><p><a href="https://review.coreboot.org/28671">View Change</a></p><pre style="font-family: monospace,monospace; white-space: pre-wrap;">fsp_broadwell_de: Move DMAR table generation to belonging VT-d device<br><br>The DMAR table generation depends on the VT-d feature which is<br>implemented in its own PCI device (for Broadwell-DE it is PCI:00:05.0).<br>Add a new PCI driver for this device and move DMAR table generation to<br>this device driver.<br><br>Change-Id: I103257c73f5e745e996a441a2535b885270bc204<br>Signed-off-by: Werner Zeh <werner.zeh@siemens.com><br>---<br>M src/soc/intel/fsp_broadwell_de/Makefile.inc<br>M src/soc/intel/fsp_broadwell_de/acpi.c<br>M src/soc/intel/fsp_broadwell_de/include/soc/acpi.h<br>M src/soc/intel/fsp_broadwell_de/northcluster.c<br>A src/soc/intel/fsp_broadwell_de/vtd.c<br>5 files changed, 47 insertions(+), 5 deletions(-)<br><br></pre><pre style="font-family: monospace,monospace; white-space: pre-wrap;">git pull ssh://review.coreboot.org:29418/coreboot refs/changes/71/28671/1</pre><pre style="font-family: monospace,monospace; white-space: pre-wrap;"><span>diff --git a/src/soc/intel/fsp_broadwell_de/Makefile.inc b/src/soc/intel/fsp_broadwell_de/Makefile.inc</span><br><span>index 386adc1..9312663 100644</span><br><span>--- a/src/soc/intel/fsp_broadwell_de/Makefile.inc</span><br><span>+++ b/src/soc/intel/fsp_broadwell_de/Makefile.inc</span><br><span>@@ -34,6 +34,7 @@</span><br><span> ramstage-y += iou_complto.c</span><br><span> ramstage-$(CONFIG_HAVE_SMI_HANDLER) += smmrelocate.c</span><br><span> ramstage-$(CONFIG_HAVE_SMI_HANDLER) += pmutil.c</span><br><span style="color: hsl(120, 100%, 40%);">+ramstage-y += vtd.c</span><br><span> smm-$(CONFIG_HAVE_SMI_HANDLER) += pmutil.c</span><br><span> smm-$(CONFIG_HAVE_SMI_HANDLER) += smihandler.c</span><br><span> smm-$(CONFIG_HAVE_SMI_HANDLER) += tsc_freq.c</span><br><span>diff --git a/src/soc/intel/fsp_broadwell_de/acpi.c b/src/soc/intel/fsp_broadwell_de/acpi.c</span><br><span>index 5d65477..b99cc49 100644</span><br><span>--- a/src/soc/intel/fsp_broadwell_de/acpi.c</span><br><span>+++ b/src/soc/intel/fsp_broadwell_de/acpi.c</span><br><span>@@ -390,15 +390,14 @@</span><br><span> return current;</span><br><span> }</span><br><span> </span><br><span style="color: hsl(0, 100%, 40%);">-unsigned long northcluster_write_acpi_tables(struct device *const dev,</span><br><span style="color: hsl(120, 100%, 40%);">+unsigned long vtd_write_acpi_tables(struct device *const dev,</span><br><span> unsigned long current,</span><br><span> struct acpi_rsdp *const rsdp)</span><br><span> {</span><br><span> acpi_dmar_t *const dmar = (acpi_dmar_t *)current;</span><br><span style="color: hsl(0, 100%, 40%);">- struct device *vtdev = dev_find_slot(0, PCI_DEVFN(5, 0));</span><br><span> </span><br><span> /* Create DMAR table only if virtualization is enabled */</span><br><span style="color: hsl(0, 100%, 40%);">- if (!(pci_read_config32(vtdev, 0x180) & 0x01))</span><br><span style="color: hsl(120, 100%, 40%);">+ if (!(pci_read_config32(dev, VTBAR_OFFSET) & 0x01))</span><br><span> return current;</span><br><span> </span><br><span> printk(BIOS_DEBUG, "ACPI: * DMAR\n");</span><br><span>diff --git a/src/soc/intel/fsp_broadwell_de/include/soc/acpi.h b/src/soc/intel/fsp_broadwell_de/include/soc/acpi.h</span><br><span>index da552cc..dce267a 100644</span><br><span>--- a/src/soc/intel/fsp_broadwell_de/include/soc/acpi.h</span><br><span>+++ b/src/soc/intel/fsp_broadwell_de/include/soc/acpi.h</span><br><span>@@ -24,7 +24,7 @@</span><br><span> void acpi_fill_in_fadt(acpi_fadt_t *fadt, acpi_facs_t *facs, void *dsdt);</span><br><span> unsigned long acpi_madt_irq_overrides(unsigned long current);</span><br><span> uint16_t get_pmbase(void);</span><br><span style="color: hsl(0, 100%, 40%);">-unsigned long northcluster_write_acpi_tables(struct device *const dev,</span><br><span style="color: hsl(120, 100%, 40%);">+unsigned long vtd_write_acpi_tables(struct device *const dev,</span><br><span> unsigned long current,</span><br><span> struct acpi_rsdp *const rsdp);</span><br><span> </span><br><span>diff --git a/src/soc/intel/fsp_broadwell_de/northcluster.c b/src/soc/intel/fsp_broadwell_de/northcluster.c</span><br><span>index 7090370..8da41d4 100644</span><br><span>--- a/src/soc/intel/fsp_broadwell_de/northcluster.c</span><br><span>+++ b/src/soc/intel/fsp_broadwell_de/northcluster.c</span><br><span>@@ -137,7 +137,6 @@</span><br><span> static struct device_operations nc_ops = {</span><br><span> .read_resources = nc_read_resources,</span><br><span> .acpi_fill_ssdt_generator = generate_cpu_entries,</span><br><span style="color: hsl(0, 100%, 40%);">- .write_acpi_tables = northcluster_write_acpi_tables,</span><br><span> .set_resources = pci_dev_set_resources,</span><br><span> .enable_resources = pci_dev_enable_resources,</span><br><span> .init = NULL,</span><br><span>diff --git a/src/soc/intel/fsp_broadwell_de/vtd.c b/src/soc/intel/fsp_broadwell_de/vtd.c</span><br><span>new file mode 100644</span><br><span>index 0000000..eccfdfb</span><br><span>--- /dev/null</span><br><span>+++ b/src/soc/intel/fsp_broadwell_de/vtd.c</span><br><span>@@ -0,0 +1,43 @@</span><br><span style="color: hsl(120, 100%, 40%);">+/*</span><br><span style="color: hsl(120, 100%, 40%);">+ * This file is part of the coreboot project.</span><br><span style="color: hsl(120, 100%, 40%);">+ *</span><br><span style="color: hsl(120, 100%, 40%);">+ * Copyright (C) 2013 Google Inc.</span><br><span style="color: hsl(120, 100%, 40%);">+ * Copyright (C) 2015-2016 Intel Corp.</span><br><span style="color: hsl(120, 100%, 40%);">+ * Copyright (C) 2016 Siemens AG</span><br><span style="color: hsl(120, 100%, 40%);">+ *</span><br><span style="color: hsl(120, 100%, 40%);">+ * This program is free software; you can redistribute it and/or modify</span><br><span style="color: hsl(120, 100%, 40%);">+ * it under the terms of the GNU General Public License as published by</span><br><span style="color: hsl(120, 100%, 40%);">+ * the Free Software Foundation; version 2 of the License.</span><br><span style="color: hsl(120, 100%, 40%);">+ *</span><br><span style="color: hsl(120, 100%, 40%);">+ * This program is distributed in the hope that it will be useful,</span><br><span style="color: hsl(120, 100%, 40%);">+ * but WITHOUT ANY WARRANTY; without even the implied warranty of</span><br><span style="color: hsl(120, 100%, 40%);">+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span><br><span style="color: hsl(120, 100%, 40%);">+ * GNU General Public License for more details.</span><br><span style="color: hsl(120, 100%, 40%);">+ */</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+#include <arch/acpi.h></span><br><span style="color: hsl(120, 100%, 40%);">+#include <device/pci.h></span><br><span style="color: hsl(120, 100%, 40%);">+#include <device/pci_ids.h></span><br><span style="color: hsl(120, 100%, 40%);">+#include <soc/pci_devs.h></span><br><span style="color: hsl(120, 100%, 40%);">+#include <soc/acpi.h></span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+static void vtd_read_resources(struct device *dev)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ /* Call the normal read_resources */</span><br><span style="color: hsl(120, 100%, 40%);">+ pci_dev_read_resources(dev);</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+static struct device_operations vtd_ops = {</span><br><span style="color: hsl(120, 100%, 40%);">+ .read_resources = vtd_read_resources,</span><br><span style="color: hsl(120, 100%, 40%);">+ .write_acpi_tables = vtd_write_acpi_tables,</span><br><span style="color: hsl(120, 100%, 40%);">+ .set_resources = pci_dev_set_resources,</span><br><span style="color: hsl(120, 100%, 40%);">+ .scan_bus = 0,</span><br><span style="color: hsl(120, 100%, 40%);">+ .ops_pci = 0,</span><br><span style="color: hsl(120, 100%, 40%);">+};</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+static const struct pci_driver vtd_driver __pci_driver = {</span><br><span style="color: hsl(120, 100%, 40%);">+ .ops = &vtd_ops,</span><br><span style="color: hsl(120, 100%, 40%);">+ .vendor = PCI_VENDOR_ID_INTEL,</span><br><span style="color: hsl(120, 100%, 40%);">+ .device = VTD_DEVID,</span><br><span style="color: hsl(120, 100%, 40%);">+};</span><br><span></span><br></pre><p>To view, visit <a href="https://review.coreboot.org/28671">change 28671</a>. 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<div style="display:none"> Gerrit-Project: coreboot </div>
<div style="display:none"> Gerrit-Branch: master </div>
<div style="display:none"> Gerrit-MessageType: newchange </div>
<div style="display:none"> Gerrit-Change-Id: I103257c73f5e745e996a441a2535b885270bc204 </div>
<div style="display:none"> Gerrit-Change-Number: 28671 </div>
<div style="display:none"> Gerrit-PatchSet: 1 </div>
<div style="display:none"> Gerrit-Owner: Werner Zeh <werner.zeh@siemens.com> </div>