u64 *tcep;
u64 rpn;
- index <<= TCE_PAGE_FACTOR;
- npages <<= TCE_PAGE_FACTOR;
-
proto_tce = TCE_PCI_READ; // Read allowed
if (direction != DMA_TO_DEVICE)
{
u64 *tcep;
- npages <<= TCE_PAGE_FACTOR;
- index <<= TCE_PAGE_FACTOR;
-
tcep = ((u64 *)tbl->it_base) + index;
while (npages--)
{
u64 *tcep;
- index <<= TCE_PAGE_FACTOR;
tcep = ((u64 *)tbl->it_base) + index;
return *tcep;
u64 proto_tce, tce;
u64 rpn;
- tcenum <<= TCE_PAGE_FACTOR;
- npages <<= TCE_PAGE_FACTOR;
-
rpn = (virt_to_abs(uaddr)) >> TCE_SHIFT;
proto_tce = TCE_PCI_READ;
if (direction != DMA_TO_DEVICE)
u64 rpn;
long l, limit;
- if (TCE_PAGE_FACTOR == 0 && npages == 1)
+ if (npages == 1)
return tce_build_pSeriesLP(tbl, tcenum, npages, uaddr,
direction);
__get_cpu_var(tce_page) = tcep;
}
- tcenum <<= TCE_PAGE_FACTOR;
- npages <<= TCE_PAGE_FACTOR;
-
rpn = (virt_to_abs(uaddr)) >> TCE_SHIFT;
proto_tce = TCE_PCI_READ;
if (direction != DMA_TO_DEVICE)
{
u64 rc;
- tcenum <<= TCE_PAGE_FACTOR;
- npages <<= TCE_PAGE_FACTOR;
-
while (npages--) {
rc = plpar_tce_put((u64)tbl->it_index, (u64)tcenum << 12, 0);
{
u64 rc;
- tcenum <<= TCE_PAGE_FACTOR;
- npages <<= TCE_PAGE_FACTOR;
-
rc = plpar_tce_stuff((u64)tbl->it_index, (u64)tcenum << 12, 0, npages);
if (rc && printk_ratelimit()) {
u64 rc;
unsigned long tce_ret;
- tcenum <<= TCE_PAGE_FACTOR;
rc = plpar_tce_get((u64)tbl->it_index, (u64)tcenum << 12, &tce_ret);
if (rc && printk_ratelimit()) {
tbl->it_busno = phb->bus->number;
/* Units of tce entries */
- tbl->it_offset = phb->dma_window_base_cur >> PAGE_SHIFT;
+ tbl->it_offset = phb->dma_window_base_cur >> IOMMU_PAGE_SHIFT;
/* Test if we are going over 2GB of DMA space */
if (phb->dma_window_base_cur + phb->dma_window_size > 0x80000000ul) {
phb->dma_window_base_cur += phb->dma_window_size;
/* Set the tce table size - measured in entries */
- tbl->it_size = phb->dma_window_size >> PAGE_SHIFT;
+ tbl->it_size = phb->dma_window_size >> IOMMU_PAGE_SHIFT;
tbl->it_index = 0;
tbl->it_blocksize = 16;
tbl->it_base = 0;
tbl->it_blocksize = 16;
tbl->it_type = TCE_PCI;
- tbl->it_offset = offset >> PAGE_SHIFT;
- tbl->it_size = size >> PAGE_SHIFT;
+ tbl->it_offset = offset >> IOMMU_PAGE_SHIFT;
+ tbl->it_size = size >> IOMMU_PAGE_SHIFT;
}
-static void iommu_bus_setup_pSeries(struct pci_bus *bus)
+static void pci_dma_bus_setup_pSeries(struct pci_bus *bus)
{
struct device_node *dn;
struct iommu_table *tbl;
struct pci_dn *pci;
int children;
- DBG("iommu_bus_setup_pSeries, bus %p, bus->self %p\n", bus, bus->self);
-
dn = pci_bus_to_OF_node(bus);
- pci = PCI_DN(dn);
+
+ DBG("pci_dma_bus_setup_pSeries: setting up bus %s\n", dn->full_name);
if (bus->self) {
/* This is not a root bus, any setup will be done for the
*/
return;
}
+ pci = PCI_DN(dn);
/* Check if the ISA bus on the system is under
* this PHB.
}
-static void iommu_bus_setup_pSeriesLP(struct pci_bus *bus)
+static void pci_dma_bus_setup_pSeriesLP(struct pci_bus *bus)
{
struct iommu_table *tbl;
struct device_node *dn, *pdn;
struct pci_dn *ppci;
const void *dma_window = NULL;
- DBG("iommu_bus_setup_pSeriesLP, bus %p, bus->self %p\n", bus, bus->self);
-
dn = pci_bus_to_OF_node(bus);
+ DBG("pci_dma_bus_setup_pSeriesLP: setting up bus %s\n", dn->full_name);
+
/* 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);
}
if (dma_window == NULL) {
- DBG("iommu_bus_setup_pSeriesLP: bus %s seems to have no ibm,dma-window property\n", dn->full_name);
+ DBG(" no ibm,dma-window property !\n");
return;
}
ppci = PCI_DN(pdn);
+
+ DBG(" parent is %s, iommu_table: 0x%p\n",
+ 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.
iommu_table_setparms_lpar(ppci->phb, pdn, tbl, dma_window);
ppci->iommu_table = iommu_init_table(tbl, ppci->phb->node);
+ DBG(" created table: %p\n", ppci->iommu_table);
}
if (pdn != dn)
}
-static void iommu_dev_setup_pSeries(struct pci_dev *dev)
+static void pci_dma_dev_setup_pSeries(struct pci_dev *dev)
{
- struct device_node *dn, *mydn;
+ struct device_node *dn;
struct iommu_table *tbl;
- DBG("iommu_dev_setup_pSeries, dev %p (%s)\n", dev, pci_name(dev));
+ DBG("pci_dma_dev_setup_pSeries: %s\n", pci_name(dev));
- mydn = dn = pci_device_to_OF_node(dev);
+ dn = dev->dev.archdata.of_node;
/* If we're the direct child of a root bus, then we need to allocate
* an iommu table ourselves. The bus setup code should have setup
* the window sizes already.
*/
if (!dev->bus->self) {
+ struct pci_controller *phb = PCI_DN(dn)->phb;
+
DBG(" --> first child, no bridge. Allocating iommu table.\n");
tbl = kmalloc_node(sizeof(struct iommu_table), GFP_KERNEL,
- PCI_DN(dn)->phb->node);
- iommu_table_setparms(PCI_DN(dn)->phb, dn, tbl);
- PCI_DN(dn)->iommu_table = iommu_init_table(tbl,
- PCI_DN(dn)->phb->node);
-
+ phb->node);
+ iommu_table_setparms(phb, dn, tbl);
+ dev->dev.archdata.dma_data = iommu_init_table(tbl, phb->node);
return;
}
while (dn && PCI_DN(dn) && PCI_DN(dn)->iommu_table == NULL)
dn = dn->parent;
- if (dn && PCI_DN(dn)) {
- PCI_DN(mydn)->iommu_table = PCI_DN(dn)->iommu_table;
- } else {
- DBG("iommu_dev_setup_pSeries, dev %p (%s) has no iommu table\n", dev, pci_name(dev));
- }
+ if (dn && PCI_DN(dn))
+ dev->dev.archdata.dma_data = PCI_DN(dn)->iommu_table;
+ else
+ printk(KERN_WARNING "iommu: Device %s has no iommu table\n",
+ pci_name(dev));
}
static int iommu_reconfig_notifier(struct notifier_block *nb, unsigned long action, void *node)
.notifier_call = iommu_reconfig_notifier,
};
-static void iommu_dev_setup_pSeriesLP(struct pci_dev *dev)
+static void pci_dma_dev_setup_pSeriesLP(struct pci_dev *dev)
{
struct device_node *pdn, *dn;
struct iommu_table *tbl;
const void *dma_window = NULL;
struct pci_dn *pci;
- DBG("iommu_dev_setup_pSeriesLP, dev %p (%s)\n", dev, pci_name(dev));
+ DBG("pci_dma_dev_setup_pSeriesLP: %s\n", pci_name(dev));
/* dev setup for LPAR is a little tricky, since the device tree might
* contain the dma-window properties per-device and not neccesarily
* already allocated.
*/
dn = pci_device_to_OF_node(dev);
+ DBG(" node is %s\n", dn->full_name);
for (pdn = dn; pdn && PCI_DN(pdn) && !PCI_DN(pdn)->iommu_table;
pdn = pdn->parent) {
break;
}
+ DBG(" parent is %s\n", pdn->full_name);
+
/* Check for parent == NULL so we don't try to setup the empty EADS
* slots on POWER4 machines.
*/
if (dma_window == NULL || pdn->parent == NULL) {
- DBG("No dma window for device, linking to parent\n");
- PCI_DN(dn)->iommu_table = PCI_DN(pdn)->iommu_table;
+ DBG(" no dma window for device, linking to parent\n");
+ dev->dev.archdata.dma_data = PCI_DN(pdn)->iommu_table;
return;
- } else {
- DBG("Found DMA window, allocating table\n");
}
+ DBG(" found DMA window, table: %p\n", pci->iommu_table);
pci = PCI_DN(pdn);
if (!pci->iommu_table) {
iommu_table_setparms_lpar(pci->phb, pdn, tbl, dma_window);
pci->iommu_table = iommu_init_table(tbl, pci->phb->node);
+ DBG(" created table: %p\n", pci->iommu_table);
}
- if (pdn != dn)
- PCI_DN(dn)->iommu_table = pci->iommu_table;
+ dev->dev.archdata.dma_data = pci->iommu_table;
}
-static void iommu_bus_setup_null(struct pci_bus *b) { }
-static void iommu_dev_setup_null(struct pci_dev *d) { }
-
/* These are called very early. */
void iommu_init_early_pSeries(void)
{
if (of_chosen && get_property(of_chosen, "linux,iommu-off", NULL)) {
/* Direct I/O, IOMMU off */
- ppc_md.iommu_dev_setup = iommu_dev_setup_null;
- ppc_md.iommu_bus_setup = iommu_bus_setup_null;
- pci_direct_iommu_init();
-
+ ppc_md.pci_dma_dev_setup = NULL;
+ ppc_md.pci_dma_bus_setup = NULL;
+ pci_dma_ops = &dma_direct_ops;
return;
}
ppc_md.tce_free = tce_free_pSeriesLP;
}
ppc_md.tce_get = tce_get_pSeriesLP;
- ppc_md.iommu_bus_setup = iommu_bus_setup_pSeriesLP;
- ppc_md.iommu_dev_setup = iommu_dev_setup_pSeriesLP;
+ ppc_md.pci_dma_bus_setup = pci_dma_bus_setup_pSeriesLP;
+ ppc_md.pci_dma_dev_setup = pci_dma_dev_setup_pSeriesLP;
} else {
ppc_md.tce_build = tce_build_pSeries;
ppc_md.tce_free = tce_free_pSeries;
ppc_md.tce_get = tce_get_pseries;
- ppc_md.iommu_bus_setup = iommu_bus_setup_pSeries;
- ppc_md.iommu_dev_setup = iommu_dev_setup_pSeries;
+ ppc_md.pci_dma_bus_setup = pci_dma_bus_setup_pSeries;
+ ppc_md.pci_dma_dev_setup = pci_dma_dev_setup_pSeries;
}
pSeries_reconfig_notifier_register(&iommu_reconfig_nb);
- pci_iommu_init();
+ pci_dma_ops = &dma_iommu_ops;
}
projects / linux-drm-fsl-dcu.git / blobdiff