1 files changed, 28 insertions, 106 deletions

diff --git a/drivers/gpu/drm/drm_ioctl.c b/drivers/gpu/drm/drm_ioctl.c
index 47db4df37a69..7f6912a16761 100644
--- a/drivers/gpu/drm/drm_ioctl.c
+++ b/drivers/gpu/drm/drm_ioctl.c
@@ -96,7 +96,7 @@ int drm_setunique(struct drm_device *dev, void *data,
 {
         struct drm_unique *u = data;
         struct drm_master *master = file_priv->master;
-        int domain, bus, slot, func, ret;
+        int ret;
 
         if (master->unique_len || master->unique)
                 return -EBUSY;
@@ -104,50 +104,12 @@ int drm_setunique(struct drm_device *dev, void *data,
         if (!u->unique_len || u->unique_len > 1024)
                 return -EINVAL;
 
-        master->unique_len = u->unique_len;
-        master->unique_size = u->unique_len + 1;
-        master->unique = kmalloc(master->unique_size, GFP_KERNEL);
-        if (!master->unique) {
-                ret = -ENOMEM;
-                goto err;
-        }
-
-        if (copy_from_user(master->unique, u->unique, master->unique_len)) {
-                ret = -EFAULT;
-                goto err;
-        }
-
-        master->unique[master->unique_len] = '\0';
-
-        dev->devname = kmalloc(strlen(dev->driver->pci_driver.name) +
-                               strlen(master->unique) + 2, GFP_KERNEL);
-        if (!dev->devname) {
-                ret = -ENOMEM;
-                goto err;
-        }
-
-        sprintf(dev->devname, "%s@%s", dev->driver->pci_driver.name,
-                master->unique);
+        if (!dev->driver->bus->set_unique)
+                return -EINVAL;
 
-        /* Return error if the busid submitted doesn't match the device's actual
-         * busid.
-         */
-        ret = sscanf(master->unique, "PCI:%d:%d:%d", &bus, &slot, &func);
-        if (ret != 3) {
-                ret = -EINVAL;
+        ret = dev->driver->bus->set_unique(dev, master, u);
+        if (ret)
                 goto err;
-        }
-
-        domain = bus >> 8;
-        bus &= 0xff;
-
-        if ((domain != drm_get_pci_domain(dev)) ||
-            (bus != dev->pdev->bus->number) ||
-            (slot != PCI_SLOT(dev->pdev->devfn)) ||
-            (func != PCI_FUNC(dev->pdev->devfn))) {
-                ret = -EINVAL;
-                goto err;
-        }
 
         return 0;
 
@@ -159,74 +121,15 @@ err:
 static int drm_set_busid(struct drm_device *dev, struct drm_file *file_priv)
 {
         struct drm_master *master = file_priv->master;
-        int len, ret;
+        int ret;
 
         if (master->unique != NULL)
                 drm_unset_busid(dev, master);
 
-        if (drm_core_check_feature(dev, DRIVER_USE_PLATFORM_DEVICE)) {
-                master->unique_len = 10 + strlen(dev->platformdev->name);
-                master->unique = kmalloc(master->unique_len + 1, GFP_KERNEL);
-
-                if (master->unique == NULL)
-                        return -ENOMEM;
-
-                len = snprintf(master->unique, master->unique_len,
-                        "platform:%s", dev->platformdev->name);
-
-                if (len > master->unique_len) {
-                        DRM_ERROR("Unique buffer overflowed\n");
-                        ret = -EINVAL;
-                        goto err;
-                }
-
-                dev->devname =
-                        kmalloc(strlen(dev->platformdev->name) +
-                                master->unique_len + 2, GFP_KERNEL);
-
-                if (dev->devname == NULL) {
-                        ret = -ENOMEM;
-                        goto err;
-                }
-
-                sprintf(dev->devname, "%s@%s", dev->platformdev->name,
-                        master->unique);
-
-        } else {
-                master->unique_len = 40;
-                master->unique_size = master->unique_len;
-                master->unique = kmalloc(master->unique_size, GFP_KERNEL);
-                if (master->unique == NULL)
-                        return -ENOMEM;
-
-                len = snprintf(master->unique, master->unique_len,
-                        "pci:%04x:%02x:%02x.%d",
-                        drm_get_pci_domain(dev),
-                        dev->pdev->bus->number,
-                        PCI_SLOT(dev->pdev->devfn),
-                        PCI_FUNC(dev->pdev->devfn));
-                if (len >= master->unique_len) {
-                        DRM_ERROR("buffer overflow");
-                        ret = -EINVAL;
-                        goto err;
-                } else
-                        master->unique_len = len;
-
-                dev->devname =
-                        kmalloc(strlen(dev->driver->pci_driver.name) +
-                                master->unique_len + 2, GFP_KERNEL);
-
-                if (dev->devname == NULL) {
-                        ret = -ENOMEM;
-                        goto err;
-                }
-
-                sprintf(dev->devname, "%s@%s", dev->driver->pci_driver.name,
-                        master->unique);
-        }
-
+        ret = dev->driver->bus->set_busid(dev, master);
+        if (ret)
+                goto err;
         return 0;
-
 err:
         drm_unset_busid(dev, master);
         return ret;
@@ -365,6 +268,25 @@ int drm_getstats(struct drm_device *dev, void *data,
 }
 
 /**
+ * Get device/driver capabilities
+ */
+int drm_getcap(struct drm_device *dev, void *data, struct drm_file *file_priv)
+{
+        struct drm_get_cap *req = data;
+
+        req->value = 0;
+        switch (req->capability) {
+        case DRM_CAP_DUMB_BUFFER:
+                if (dev->driver->dumb_create)
+                        req->value = 1;
+                break;
+        default:
+                return -EINVAL;
+        }
+        return 0;
+}
+
+/**
  * Setversion ioctl.
  *
  * \param inode device inode.