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Diffstat (limited to 'linux-core/drm_ioctl.c')
-rw-r--r--linux-core/drm_ioctl.c45
1 files changed, 44 insertions, 1 deletions
diff --git a/linux-core/drm_ioctl.c b/linux-core/drm_ioctl.c
index 01604e75..d753cce0 100644
--- a/linux-core/drm_ioctl.c
+++ b/linux-core/drm_ioctl.c
@@ -41,6 +41,28 @@ int DRM(irq_busid)(struct inode *inode, struct file *filp,
if (copy_from_user(&p, (drm_irq_busid_t *)arg, sizeof(p)))
return -EFAULT;
+#ifdef __alpha__
+ {
+ int domain = p.busnum >> 8;
+ p.busnum &= 0xff;
+
+ /*
+ * Find the hose the device is on (the domain number is the
+ * hose index) and offset the bus by the root bus of that
+ * hose.
+ */
+ for(dev = pci_find_device(PCI_ANY_ID,PCI_ANY_ID,NULL);
+ dev;
+ dev = pci_find_device(PCI_ANY_ID,PCI_ANY_ID,dev)) {
+ struct pci_controller *hose = dev->sysdata;
+
+ if (hose->index == domain) {
+ p.busnum += hose->bus->number;
+ break;
+ }
+ }
+ }
+#endif
dev = pci_find_slot(p.busnum, PCI_DEVFN(p.devnum, p.funcnum));
if (!dev) {
DRM_ERROR("pci_find_slot failed for %d:%d:%d\n",
@@ -113,7 +135,7 @@ int DRM(setunique)(struct inode *inode, struct file *filp,
do {
struct pci_dev *pci_dev;
- int b, d, f;
+ int domain, b, d, f;
char *p;
for(p = dev->unique; p && *p && *p != ':'; p++);
@@ -125,6 +147,27 @@ int DRM(setunique)(struct inode *inode, struct file *filp,
f = (int)simple_strtoul(p+1, &p, 10);
if (*p) break;
+ domain = b >> 8;
+ b &= 0xff;
+
+#ifdef __alpha__
+ /*
+ * Find the hose the device is on (the domain number is the
+ * hose index) and offset the bus by the root bus of that
+ * hose.
+ */
+ for(pci_dev = pci_find_device(PCI_ANY_ID,PCI_ANY_ID,NULL);
+ pci_dev;
+ pci_dev = pci_find_device(PCI_ANY_ID,PCI_ANY_ID,pci_dev)) {
+ struct pci_controller *hose = pci_dev->sysdata;
+
+ if (hose->index == domain) {
+ b += hose->bus->number;
+ break;
+ }
+ }
+#endif
+
pci_dev = pci_find_slot(b, PCI_DEVFN(d,f));
if (pci_dev) {
dev->pdev = pci_dev;