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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2010-08-06 13:55:10 +1000
committerDave Airlie <airlied@redhat.com>2010-08-10 08:20:20 +1000
commitc17c2f892e23a3c70281a4e79bd7c2c226b1a561 (patch)
tree73e048ae853103479e3ba747809fc8c38f6b7de8
parentc3b6ef8633e75bdcde8e845548e3b95e9a21cdf6 (diff)
downloadlinux-c17c2f892e23a3c70281a4e79bd7c2c226b1a561.tar.bz2
drm: Fix support for PCI domains
(For some reason I thought that went in ages ago ...) This fixes support for PCI domains in what should hopefully be a backward compatible way along with a change to libdrm. When the interface version is set to 1.4, we assume userspace understands domains and the world is at peace. We thus pass proper domain numbers instead of 0 to userspace. The newer libdrm will then try 1.4 first, and fallback to 1.1, along with ignoring domains in the later case (well, except on alpha of course) Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Dave Airlie <airlied@redhat.com>
-rw-r--r--drivers/gpu/drm/drm_ioctl.c1
-rw-r--r--include/drm/drmP.h22
-rw-r--r--include/drm/drm_core.h2
3 files changed, 18 insertions, 7 deletions
diff --git a/drivers/gpu/drm/drm_ioctl.c b/drivers/gpu/drm/drm_ioctl.c
index 7b03b197fc00..47db4df37a69 100644
--- a/drivers/gpu/drm/drm_ioctl.c
+++ b/drivers/gpu/drm/drm_ioctl.c
@@ -392,6 +392,7 @@ 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
*/
retcode = drm_set_busid(dev, file_priv);
if (retcode)
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index e2a4da7d7fab..2a512bc0d4ab 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -1075,7 +1075,6 @@ static __inline__ int drm_core_check_feature(struct drm_device *dev,
return ((dev->driver->driver_features & feature) ? 1 : 0);
}
-
static inline int drm_dev_to_irq(struct drm_device *dev)
{
if (drm_core_check_feature(dev, DRIVER_USE_PLATFORM_DEVICE))
@@ -1084,11 +1083,22 @@ static inline int drm_dev_to_irq(struct drm_device *dev)
return dev->pdev->irq;
}
-#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)
+{
+ if (drm_core_check_feature(dev, DRIVER_USE_PLATFORM_DEVICE))
+ return 0;
+
+#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 316739036079..4e7523863a4b 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