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-rw-r--r--linux-core/drmP.h8
-rw-r--r--linux-core/drm_stub.c68
2 files changed, 73 insertions, 3 deletions
diff --git a/linux-core/drmP.h b/linux-core/drmP.h
index 23c6854c..dfa56d90 100644
--- a/linux-core/drmP.h
+++ b/linux-core/drmP.h
@@ -696,11 +696,13 @@ typedef struct drm_device {
struct pci_controller *hose;
#endif
#endif
- drm_sg_mem_t *sg; /**< Scatter gather memory */
+ drm_sg_mem_t *sg; /**< Scatter gather memory */
unsigned long *ctx_bitmap; /**< context bitmap */
- void *dev_private; /**< device private data */
- drm_sigdata_t sigdata; /**< For block_all_signals */
+ void *dev_private; /**< device private data */
+ drm_sigdata_t sigdata; /**< For block_all_signals */
sigset_t sigmask;
+
+ int need_reset; /**< secondary device needing reset */
} drm_device_t;
diff --git a/linux-core/drm_stub.c b/linux-core/drm_stub.c
index 7ab5e427..a1b45a92 100644
--- a/linux-core/drm_stub.c
+++ b/linux-core/drm_stub.c
@@ -78,6 +78,73 @@ static struct file_operations DRM(stub_fops) = {
.open = DRM(stub_open)
};
+static int drm_hotplug (struct class_device *dev, char **envp, int num_envp,
+ char *buffer, int buffer_size)
+{
+ drm_device_t *ddev;
+ struct pci_dev *pdev;
+ char *scratch;
+ int i = 0;
+ int length = 0;
+
+ DRM_DEBUG("\n");
+ if (!dev)
+ return -ENODEV;
+
+ pdev = to_pci_dev(dev->dev);
+ if (!pdev)
+ return -ENODEV;
+
+ scratch = buffer;
+
+ /* stuff we want to pass to /sbin/hotplug */
+ envp[i++] = scratch;
+ length += snprintf (scratch, buffer_size - length, "PCI_CLASS=%04X",
+ pdev->class);
+ if ((buffer_size - length <= 0) || (i >= num_envp))
+ return -ENOMEM;
+ ++length;
+ scratch += length;
+
+ envp[i++] = scratch;
+ length += snprintf (scratch, buffer_size - length, "PCI_ID=%04X:%04X",
+ pdev->vendor, pdev->device);
+ if ((buffer_size - length <= 0) || (i >= num_envp))
+ return -ENOMEM;
+ ++length;
+ scratch += length;
+
+ envp[i++] = scratch;
+ length += snprintf (scratch, buffer_size - length,
+ "PCI_SUBSYS_ID=%04X:%04X", pdev->subsystem_vendor,
+ pdev->subsystem_device);
+ if ((buffer_size - length <= 0) || (i >= num_envp))
+ return -ENOMEM;
+ ++length;
+ scratch += length;
+
+ envp[i++] = scratch;
+ length += snprintf (scratch, buffer_size - length, "PCI_SLOT_NAME=%s",
+ pci_name(pdev));
+ if ((buffer_size - length <= 0) || (i >= num_envp))
+ return -ENOMEM;
+ ++length;
+ scratch += length;
+
+ ddev = pci_get_drvdata(pdev);
+ if (ddev) {
+ envp[i++] = scratch;
+ length += snprintf (scratch, buffer_size - length,
+ "RESET=%s", (ddev->need_reset ? "true" : "false"));
+ if ((buffer_size - length <= 0) || (i >= num_envp))
+ return -ENOMEM;
+ }
+ envp[i] = 0;
+ DRM_DEBUG(" - ok\n");
+
+ return 0;
+}
+
/**
* Get a device minor number.
*
@@ -202,6 +269,7 @@ int DRM(stub_register)(const char *name, struct file_operations *fops,
}
DRM(stub_info).drm_class = class_simple_create(THIS_MODULE, "drm");
+ class_simple_set_hotplug(DRM(stub_info).drm_class, drm_hotplug);
if (IS_ERR(DRM(stub_info).drm_class)) {
printk (KERN_ERR "Error creating drm class.\n");
unregister_chrdev(DRM_MAJOR, "drm");