drm/nv40: make detection of 0x4097-ful chipsets available everywhere

[firefly-linux-kernel-4.4.55.git] / drivers / gpu / drm / nouveau / nouveau_drv.h

diff --git a/drivers/gpu/drm/nouveau/nouveau_drv.h b/drivers/gpu/drm/nouveau/nouveau_drv.h
index 6d749b7920883fe10f78a92de398c7c9b3387d7b..07a7e6ad5e3bfb7bd7e5f6cb3f38c2a76a350f95 100644 (file)
--- a/drivers/gpu/drm/nouveau/nouveau_drv.h
+++ b/drivers/gpu/drm/nouveau/nouveau_drv.h
@@ -1574,6 +1574,20 @@ nv_match_device(struct drm_device *dev, unsigned device,
                dev->pdev->subsystem_device == sub_device;
 }
 
+/* returns 1 if device is one of the nv4x using the 0x4497 object class,
+ * helpful to determine a number of other hardware features
+ */
+static inline int
+nv44_graph_class(struct drm_device *dev)
+{
+       struct drm_nouveau_private *dev_priv = dev->dev_private;
+
+       if ((dev_priv->chipset & 0xf0) == 0x60)
+               return 1;
+
+       return !(0x0baf & (1 << (dev_priv->chipset & 0x0f)));
+}
+
 /* memory type/access flags, do not match hardware values */
 #define NV_MEM_ACCESS_RO  1
 #define NV_MEM_ACCESS_WO  2