drm: Fix support for PCI domains

Commit Message

Benjamin Herrenschmidt Aug. 6, 2010, 3:55 a.m. UTC

None

Patch

diff --git a/drivers/gpu/drm/drm_ioctl.c b/drivers/gpu/drm/drm_ioctl.c
index 9b9ff46..d7b2bd6 100644
--- a/drivers/gpu/drm/drm_ioctl.c
+++ b/drivers/gpu/drm/drm_ioctl.c
@@ -322,6 +322,7 @@  int drm_setversion(struct drm_device *dev, void *data, struct drm_file *file_pri
 		if (sv->drm_di_minor >= 1) {
 			/*
 			 * Version 1.1 includes tying of DRM to specific device
+			 * Version 1.4 has proper PCI domain support
 			 */
 			drm_set_busid(dev, file_priv);
 		}
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index c1b9871..6d4bad5 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -1071,11 +1071,19 @@  static __inline__ int drm_core_check_feature(struct drm_device *dev,
 	return ((dev->driver->driver_features & feature) ? 1 : 0);
 }
 
-#ifdef __alpha__
-#define drm_get_pci_domain(dev) dev->hose->index
-#else
-#define drm_get_pci_domain(dev) 0
-#endif
+static inline int drm_get_pci_domain(struct drm_device *dev)
+{
+#ifndef __alpha__
+	/* For historical reasons, drm_get_pci_domain() is busticated
+	 * on most archs and has to remain so for userspace interface
+	 * < 1.4, except on alpha which was right from the beginning
+	 */
+	if (dev->if_version < 0x10004)
+		return 0;
+#endif /* __alpha__ */
+
+	return pci_domain_nr(dev->pdev->bus);
+}
 
 #if __OS_HAS_AGP
 static inline int drm_core_has_AGP(struct drm_device *dev)
diff --git a/include/drm/drm_core.h b/include/drm/drm_core.h
index 3167390..4e75238 100644
--- a/include/drm/drm_core.h
+++ b/include/drm/drm_core.h
@@ -27,7 +27,7 @@ 
 #define CORE_DATE		"20060810"
 
 #define DRM_IF_MAJOR	1
-#define DRM_IF_MINOR	3
+#define DRM_IF_MINOR	4
 
 #define CORE_MAJOR	1
 #define CORE_MINOR	1