[Feature]add MT2731_MP2_MR2_SVN388 baseline version
Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/kernel/linux/v4.14/arch/x86/pci/acpi.c b/src/kernel/linux/v4.14/arch/x86/pci/acpi.c
new file mode 100644
index 0000000..7df49c4
--- /dev/null
+++ b/src/kernel/linux/v4.14/arch/x86/pci/acpi.c
@@ -0,0 +1,427 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/pci.h>
+#include <linux/acpi.h>
+#include <linux/init.h>
+#include <linux/irq.h>
+#include <linux/dmi.h>
+#include <linux/slab.h>
+#include <linux/pci-acpi.h>
+#include <asm/numa.h>
+#include <asm/pci_x86.h>
+
+struct pci_root_info {
+ struct acpi_pci_root_info common;
+ struct pci_sysdata sd;
+#ifdef CONFIG_PCI_MMCONFIG
+ bool mcfg_added;
+ u8 start_bus;
+ u8 end_bus;
+#endif
+};
+
+static bool pci_use_crs = true;
+static bool pci_ignore_seg = false;
+
+static int __init set_use_crs(const struct dmi_system_id *id)
+{
+ pci_use_crs = true;
+ return 0;
+}
+
+static int __init set_nouse_crs(const struct dmi_system_id *id)
+{
+ pci_use_crs = false;
+ return 0;
+}
+
+static int __init set_ignore_seg(const struct dmi_system_id *id)
+{
+ printk(KERN_INFO "PCI: %s detected: ignoring ACPI _SEG\n", id->ident);
+ pci_ignore_seg = true;
+ return 0;
+}
+
+static const struct dmi_system_id pci_crs_quirks[] __initconst = {
+ /* http://bugzilla.kernel.org/show_bug.cgi?id=14183 */
+ {
+ .callback = set_use_crs,
+ .ident = "IBM System x3800",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "IBM"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "x3800"),
+ },
+ },
+ /* https://bugzilla.kernel.org/show_bug.cgi?id=16007 */
+ /* 2006 AMD HT/VIA system with two host bridges */
+ {
+ .callback = set_use_crs,
+ .ident = "ASRock ALiveSATA2-GLAN",
+ .matches = {
+ DMI_MATCH(DMI_PRODUCT_NAME, "ALiveSATA2-GLAN"),
+ },
+ },
+ /* https://bugzilla.kernel.org/show_bug.cgi?id=30552 */
+ /* 2006 AMD HT/VIA system with two host bridges */
+ {
+ .callback = set_use_crs,
+ .ident = "ASUS M2V-MX SE",
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."),
+ DMI_MATCH(DMI_BOARD_NAME, "M2V-MX SE"),
+ DMI_MATCH(DMI_BIOS_VENDOR, "American Megatrends Inc."),
+ },
+ },
+ /* https://bugzilla.kernel.org/show_bug.cgi?id=42619 */
+ {
+ .callback = set_use_crs,
+ .ident = "MSI MS-7253",
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "MICRO-STAR INTERNATIONAL CO., LTD"),
+ DMI_MATCH(DMI_BOARD_NAME, "MS-7253"),
+ DMI_MATCH(DMI_BIOS_VENDOR, "Phoenix Technologies, LTD"),
+ },
+ },
+ /* https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/931368 */
+ /* https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1033299 */
+ {
+ .callback = set_use_crs,
+ .ident = "Foxconn K8M890-8237A",
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "Foxconn"),
+ DMI_MATCH(DMI_BOARD_NAME, "K8M890-8237A"),
+ DMI_MATCH(DMI_BIOS_VENDOR, "Phoenix Technologies, LTD"),
+ },
+ },
+
+ /* Now for the blacklist.. */
+
+ /* https://bugzilla.redhat.com/show_bug.cgi?id=769657 */
+ {
+ .callback = set_nouse_crs,
+ .ident = "Dell Studio 1557",
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Studio 1557"),
+ DMI_MATCH(DMI_BIOS_VERSION, "A09"),
+ },
+ },
+ /* https://bugzilla.redhat.com/show_bug.cgi?id=769657 */
+ {
+ .callback = set_nouse_crs,
+ .ident = "Thinkpad SL510",
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_BOARD_NAME, "2847DFG"),
+ DMI_MATCH(DMI_BIOS_VERSION, "6JET85WW (1.43 )"),
+ },
+ },
+ /* https://bugzilla.kernel.org/show_bug.cgi?id=42606 */
+ {
+ .callback = set_nouse_crs,
+ .ident = "Supermicro X8DTH",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Supermicro"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "X8DTH-i/6/iF/6F"),
+ DMI_MATCH(DMI_BIOS_VERSION, "2.0a"),
+ },
+ },
+
+ /* https://bugzilla.kernel.org/show_bug.cgi?id=15362 */
+ {
+ .callback = set_ignore_seg,
+ .ident = "HP xw9300",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "HP xw9300 Workstation"),
+ },
+ },
+ {}
+};
+
+void __init pci_acpi_crs_quirks(void)
+{
+ int year;
+
+ if (dmi_get_date(DMI_BIOS_DATE, &year, NULL, NULL) && year < 2008) {
+ if (iomem_resource.end <= 0xffffffff)
+ pci_use_crs = false;
+ }
+
+ dmi_check_system(pci_crs_quirks);
+
+ /*
+ * If the user specifies "pci=use_crs" or "pci=nocrs" explicitly, that
+ * takes precedence over anything we figured out above.
+ */
+ if (pci_probe & PCI_ROOT_NO_CRS)
+ pci_use_crs = false;
+ else if (pci_probe & PCI_USE__CRS)
+ pci_use_crs = true;
+
+ printk(KERN_INFO "PCI: %s host bridge windows from ACPI; "
+ "if necessary, use \"pci=%s\" and report a bug\n",
+ pci_use_crs ? "Using" : "Ignoring",
+ pci_use_crs ? "nocrs" : "use_crs");
+}
+
+#ifdef CONFIG_PCI_MMCONFIG
+static int check_segment(u16 seg, struct device *dev, char *estr)
+{
+ if (seg) {
+ dev_err(dev,
+ "%s can't access PCI configuration "
+ "space under this host bridge.\n",
+ estr);
+ return -EIO;
+ }
+
+ /*
+ * Failure in adding MMCFG information is not fatal,
+ * just can't access extended configuration space of
+ * devices under this host bridge.
+ */
+ dev_warn(dev,
+ "%s can't access extended PCI configuration "
+ "space under this bridge.\n",
+ estr);
+
+ return 0;
+}
+
+static int setup_mcfg_map(struct acpi_pci_root_info *ci)
+{
+ int result, seg;
+ struct pci_root_info *info;
+ struct acpi_pci_root *root = ci->root;
+ struct device *dev = &ci->bridge->dev;
+
+ info = container_of(ci, struct pci_root_info, common);
+ info->start_bus = (u8)root->secondary.start;
+ info->end_bus = (u8)root->secondary.end;
+ info->mcfg_added = false;
+ seg = info->sd.domain;
+
+ /* return success if MMCFG is not in use */
+ if (raw_pci_ext_ops && raw_pci_ext_ops != &pci_mmcfg)
+ return 0;
+
+ if (!(pci_probe & PCI_PROBE_MMCONF))
+ return check_segment(seg, dev, "MMCONFIG is disabled,");
+
+ result = pci_mmconfig_insert(dev, seg, info->start_bus, info->end_bus,
+ root->mcfg_addr);
+ if (result == 0) {
+ /* enable MMCFG if it hasn't been enabled yet */
+ if (raw_pci_ext_ops == NULL)
+ raw_pci_ext_ops = &pci_mmcfg;
+ info->mcfg_added = true;
+ } else if (result != -EEXIST)
+ return check_segment(seg, dev,
+ "fail to add MMCONFIG information,");
+
+ return 0;
+}
+
+static void teardown_mcfg_map(struct acpi_pci_root_info *ci)
+{
+ struct pci_root_info *info;
+
+ info = container_of(ci, struct pci_root_info, common);
+ if (info->mcfg_added) {
+ pci_mmconfig_delete(info->sd.domain,
+ info->start_bus, info->end_bus);
+ info->mcfg_added = false;
+ }
+}
+#else
+static int setup_mcfg_map(struct acpi_pci_root_info *ci)
+{
+ return 0;
+}
+
+static void teardown_mcfg_map(struct acpi_pci_root_info *ci)
+{
+}
+#endif
+
+static int pci_acpi_root_get_node(struct acpi_pci_root *root)
+{
+ int busnum = root->secondary.start;
+ struct acpi_device *device = root->device;
+ int node = acpi_get_node(device->handle);
+
+ if (node == NUMA_NO_NODE) {
+ node = x86_pci_root_bus_node(busnum);
+ if (node != 0 && node != NUMA_NO_NODE)
+ dev_info(&device->dev, FW_BUG "no _PXM; falling back to node %d from hardware (may be inconsistent with ACPI node numbers)\n",
+ node);
+ }
+ if (node != NUMA_NO_NODE && !node_online(node))
+ node = NUMA_NO_NODE;
+
+ return node;
+}
+
+static int pci_acpi_root_init_info(struct acpi_pci_root_info *ci)
+{
+ return setup_mcfg_map(ci);
+}
+
+static void pci_acpi_root_release_info(struct acpi_pci_root_info *ci)
+{
+ teardown_mcfg_map(ci);
+ kfree(container_of(ci, struct pci_root_info, common));
+}
+
+/*
+ * An IO port or MMIO resource assigned to a PCI host bridge may be
+ * consumed by the host bridge itself or available to its child
+ * bus/devices. The ACPI specification defines a bit (Producer/Consumer)
+ * to tell whether the resource is consumed by the host bridge itself,
+ * but firmware hasn't used that bit consistently, so we can't rely on it.
+ *
+ * On x86 and IA64 platforms, all IO port and MMIO resources are assumed
+ * to be available to child bus/devices except one special case:
+ * IO port [0xCF8-0xCFF] is consumed by the host bridge itself
+ * to access PCI configuration space.
+ *
+ * So explicitly filter out PCI CFG IO ports[0xCF8-0xCFF].
+ */
+static bool resource_is_pcicfg_ioport(struct resource *res)
+{
+ return (res->flags & IORESOURCE_IO) &&
+ res->start == 0xCF8 && res->end == 0xCFF;
+}
+
+static int pci_acpi_root_prepare_resources(struct acpi_pci_root_info *ci)
+{
+ struct acpi_device *device = ci->bridge;
+ int busnum = ci->root->secondary.start;
+ struct resource_entry *entry, *tmp;
+ int status;
+
+ status = acpi_pci_probe_root_resources(ci);
+ if (pci_use_crs) {
+ resource_list_for_each_entry_safe(entry, tmp, &ci->resources)
+ if (resource_is_pcicfg_ioport(entry->res))
+ resource_list_destroy_entry(entry);
+ return status;
+ }
+
+ resource_list_for_each_entry_safe(entry, tmp, &ci->resources) {
+ dev_printk(KERN_DEBUG, &device->dev,
+ "host bridge window %pR (ignored)\n", entry->res);
+ resource_list_destroy_entry(entry);
+ }
+ x86_pci_root_bus_resources(busnum, &ci->resources);
+
+ return 0;
+}
+
+static struct acpi_pci_root_ops acpi_pci_root_ops = {
+ .pci_ops = &pci_root_ops,
+ .init_info = pci_acpi_root_init_info,
+ .release_info = pci_acpi_root_release_info,
+ .prepare_resources = pci_acpi_root_prepare_resources,
+};
+
+struct pci_bus *pci_acpi_scan_root(struct acpi_pci_root *root)
+{
+ int domain = root->segment;
+ int busnum = root->secondary.start;
+ int node = pci_acpi_root_get_node(root);
+ struct pci_bus *bus;
+
+ if (pci_ignore_seg)
+ root->segment = domain = 0;
+
+ if (domain && !pci_domains_supported) {
+ printk(KERN_WARNING "pci_bus %04x:%02x: "
+ "ignored (multiple domains not supported)\n",
+ domain, busnum);
+ return NULL;
+ }
+
+ bus = pci_find_bus(domain, busnum);
+ if (bus) {
+ /*
+ * If the desired bus has been scanned already, replace
+ * its bus->sysdata.
+ */
+ struct pci_sysdata sd = {
+ .domain = domain,
+ .node = node,
+ .companion = root->device
+ };
+
+ memcpy(bus->sysdata, &sd, sizeof(sd));
+ } else {
+ struct pci_root_info *info;
+
+ info = kzalloc_node(sizeof(*info), GFP_KERNEL, node);
+ if (!info)
+ dev_err(&root->device->dev,
+ "pci_bus %04x:%02x: ignored (out of memory)\n",
+ domain, busnum);
+ else {
+ info->sd.domain = domain;
+ info->sd.node = node;
+ info->sd.companion = root->device;
+ bus = acpi_pci_root_create(root, &acpi_pci_root_ops,
+ &info->common, &info->sd);
+ }
+ }
+
+ /* After the PCI-E bus has been walked and all devices discovered,
+ * configure any settings of the fabric that might be necessary.
+ */
+ if (bus) {
+ struct pci_bus *child;
+ list_for_each_entry(child, &bus->children, node)
+ pcie_bus_configure_settings(child);
+ }
+
+ return bus;
+}
+
+int pcibios_root_bridge_prepare(struct pci_host_bridge *bridge)
+{
+ /*
+ * We pass NULL as parent to pci_create_root_bus(), so if it is not NULL
+ * here, pci_create_root_bus() has been called by someone else and
+ * sysdata is likely to be different from what we expect. Let it go in
+ * that case.
+ */
+ if (!bridge->dev.parent) {
+ struct pci_sysdata *sd = bridge->bus->sysdata;
+ ACPI_COMPANION_SET(&bridge->dev, sd->companion);
+ }
+ return 0;
+}
+
+int __init pci_acpi_init(void)
+{
+ struct pci_dev *dev = NULL;
+
+ if (acpi_noirq)
+ return -ENODEV;
+
+ printk(KERN_INFO "PCI: Using ACPI for IRQ routing\n");
+ acpi_irq_penalty_init();
+ pcibios_enable_irq = acpi_pci_irq_enable;
+ pcibios_disable_irq = acpi_pci_irq_disable;
+ x86_init.pci.init_irq = x86_init_noop;
+
+ if (pci_routeirq) {
+ /*
+ * PCI IRQ routing is set up by pci_enable_device(), but we
+ * also do it here in case there are still broken drivers that
+ * don't use pci_enable_device().
+ */
+ printk(KERN_INFO "PCI: Routing PCI interrupts for all devices because \"pci=routeirq\" specified\n");
+ for_each_pci_dev(dev)
+ acpi_pci_irq_enable(dev);
+ }
+
+ return 0;
+}