drm/nvc0/gr: macro to determine fermi class, will use it in a few places

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

1 files changed, 22 insertions, 0 deletions

diff --git a/drivers/gpu/drm/nouveau/nvc0_graph.h b/drivers/gpu/drm/nouveau/nvc0_graph.h
index f5d184e0689d..2b667d4e88ca 100644
--- a/drivers/gpu/drm/nouveau/nvc0_graph.h
+++ b/drivers/gpu/drm/nouveau/nvc0_graph.h
@@ -72,4 +72,26 @@ struct nvc0_graph_chan {
 
 int nvc0_grctx_generate(struct nouveau_channel *);
 
+/* nvc0_graph.c uses this also to determine supported chipsets */
+static inline u32
+nvc0_graph_class(struct drm_device *dev)
+{
+        struct drm_nouveau_private *dev_priv = dev->dev_private;
+
+        switch (dev_priv->chipset) {
+        case 0xc0:
+        case 0xc3:
+        case 0xc4:
+                return 0x9097;
+#if 0
+        case 0xc1:
+                return 0x9197;
+        case 0xc8:
+                return 0x9297;
+#endif
+        default:
+                return 0;
+        }
+}
+
 #endif