return tce_ret;
}
+#ifdef CONFIG_PCI
static void iommu_table_setparms(struct pci_controller *phb,
struct device_node *dn,
struct iommu_table *tbl)
const unsigned long *basep;
const u32 *sizep;
- node = (struct device_node *)phb->arch_data;
+ node = phb->dn;
- basep = get_property(node, "linux,tce-base", NULL);
- sizep = get_property(node, "linux,tce-size", NULL);
+ basep = of_get_property(node, "linux,tce-base", NULL);
+ sizep = of_get_property(node, "linux,tce-size", NULL);
if (basep == NULL || sizep == NULL) {
printk(KERN_ERR "PCI_DMA: iommu_table_setparms: %s has "
"missing tce entries !\n", dn->full_name);
static void iommu_table_setparms_lpar(struct pci_controller *phb,
struct device_node *dn,
struct iommu_table *tbl,
- const void *dma_window)
+ const void *dma_window,
+ int bussubno)
{
unsigned long offset, size;
- tbl->it_busno = PCI_DN(dn)->bussubno;
+ tbl->it_busno = bussubno;
of_parse_dma_window(dn, dma_window, &tbl->it_index, &offset, &size);
tbl->it_base = 0;
/* Find nearest ibm,dma-window, walking up the device tree */
for (pdn = dn; pdn != NULL; pdn = pdn->parent) {
- dma_window = get_property(pdn, "ibm,dma-window", NULL);
+ dma_window = of_get_property(pdn, "ibm,dma-window", NULL);
if (dma_window != NULL)
break;
}
pdn->full_name, ppci->iommu_table);
if (!ppci->iommu_table) {
- /* Bussubno hasn't been copied yet.
- * Do it now because iommu_table_setparms_lpar needs it.
- */
-
- ppci->bussubno = bus->number;
-
tbl = kmalloc_node(sizeof(struct iommu_table), GFP_KERNEL,
ppci->phb->node);
-
- iommu_table_setparms_lpar(ppci->phb, pdn, tbl, dma_window);
-
+ iommu_table_setparms_lpar(ppci->phb, pdn, tbl, dma_window,
+ bus->number);
ppci->iommu_table = iommu_init_table(tbl, ppci->phb->node);
DBG(" created table: %p\n", ppci->iommu_table);
}
pci_name(dev));
}
-static int iommu_reconfig_notifier(struct notifier_block *nb, unsigned long action, void *node)
-{
- int err = NOTIFY_OK;
- struct device_node *np = node;
- struct pci_dn *pci = PCI_DN(np);
-
- switch (action) {
- case PSERIES_RECONFIG_REMOVE:
- if (pci && pci->iommu_table &&
- get_property(np, "ibm,dma-window", NULL))
- iommu_free_table(np);
- break;
- default:
- err = NOTIFY_DONE;
- break;
- }
- return err;
-}
-
-static struct notifier_block iommu_reconfig_nb = {
- .notifier_call = iommu_reconfig_notifier,
-};
-
static void pci_dma_dev_setup_pSeriesLP(struct pci_dev *dev)
{
struct device_node *pdn, *dn;
for (pdn = dn; pdn && PCI_DN(pdn) && !PCI_DN(pdn)->iommu_table;
pdn = pdn->parent) {
- dma_window = get_property(pdn, "ibm,dma-window", NULL);
+ dma_window = of_get_property(pdn, "ibm,dma-window", NULL);
if (dma_window)
break;
}
+ if (!pdn || !PCI_DN(pdn)) {
+ printk(KERN_WARNING "pci_dma_dev_setup_pSeriesLP: "
+ "no DMA window found for pci dev=%s dn=%s\n",
+ pci_name(dev), dn? dn->full_name : "<null>");
+ return;
+ }
DBG(" parent is %s\n", pdn->full_name);
/* Check for parent == NULL so we don't try to setup the empty EADS
dev->dev.archdata.dma_data = PCI_DN(pdn)->iommu_table;
return;
}
- DBG(" found DMA window, table: %p\n", pci->iommu_table);
pci = PCI_DN(pdn);
if (!pci->iommu_table) {
- /* iommu_table_setparms_lpar needs bussubno. */
- pci->bussubno = pci->phb->bus->number;
-
tbl = kmalloc_node(sizeof(struct iommu_table), GFP_KERNEL,
pci->phb->node);
-
- iommu_table_setparms_lpar(pci->phb, pdn, tbl, dma_window);
-
+ iommu_table_setparms_lpar(pci->phb, pdn, tbl, dma_window,
+ pci->phb->bus->number);
pci->iommu_table = iommu_init_table(tbl, pci->phb->node);
DBG(" created table: %p\n", pci->iommu_table);
+ } else {
+ DBG(" found DMA window, table: %p\n", pci->iommu_table);
}
dev->dev.archdata.dma_data = pci->iommu_table;
}
+#else /* CONFIG_PCI */
+#define pci_dma_bus_setup_pSeries NULL
+#define pci_dma_dev_setup_pSeries NULL
+#define pci_dma_bus_setup_pSeriesLP NULL
+#define pci_dma_dev_setup_pSeriesLP NULL
+#endif /* !CONFIG_PCI */
+
+static int iommu_reconfig_notifier(struct notifier_block *nb, unsigned long action, void *node)
+{
+ int err = NOTIFY_OK;
+ struct device_node *np = node;
+ struct pci_dn *pci = PCI_DN(np);
+
+ switch (action) {
+ case PSERIES_RECONFIG_REMOVE:
+ if (pci && pci->iommu_table &&
+ of_get_property(np, "ibm,dma-window", NULL))
+ iommu_free_table(pci->iommu_table, np->full_name);
+ break;
+ default:
+ err = NOTIFY_DONE;
+ break;
+ }
+ return err;
+}
+
+static struct notifier_block iommu_reconfig_nb = {
+ .notifier_call = iommu_reconfig_notifier,
+};
/* These are called very early. */
void iommu_init_early_pSeries(void)
{
- if (of_chosen && get_property(of_chosen, "linux,iommu-off", NULL)) {
+ if (of_chosen && of_get_property(of_chosen, "linux,iommu-off", NULL)) {
/* Direct I/O, IOMMU off */
ppc_md.pci_dma_dev_setup = NULL;
ppc_md.pci_dma_bus_setup = NULL;