nouveau/nv50: skeletal backend

1 files changed, 84 insertions, 0 deletions

diff --git a/shared-core/nv50_graph.c b/shared-core/nv50_graph.c
new file mode 100644
index 00000000..8c3e2b9b
--- /dev/null
+++ b/shared-core/nv50_graph.c
@@ -0,0 +1,84 @@
+/*
+ * Copyright (C) 2007 Ben Skeggs.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial
+ * portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ */
+
+#include "drmP.h"
+#include "drm.h"
+#include "nouveau_drv.h"
+
+static void
+nv50_graph_init_reset(drm_device_t *dev)
+{
+	drm_nouveau_private_t *dev_priv = dev->dev_private;
+	uint32_t pmc_e;
+
+	pmc_e = NV_READ(NV03_PMC_ENABLE);
+	NV_WRITE(NV03_PMC_ENABLE, pmc_e & ~NV_PMC_ENABLE_PGRAPH);
+	pmc_e = NV_READ(NV03_PMC_ENABLE);
+	NV_WRITE(NV03_PMC_ENABLE, pmc_e |  NV_PMC_ENABLE_PGRAPH);
+}
+
+int 
+nv50_graph_init(drm_device_t *dev)
+{
+	nv50_graph_init_reset(dev);
+
+	DRM_ERROR("stub!\n");
+	return 0;
+}
+
+void
+nv50_graph_takedown(drm_device_t *dev)
+{
+	DRM_ERROR("stub!\n");
+}
+
+int
+nv50_graph_create_context(drm_device_t *dev, int channel)
+{
+	DRM_ERROR("stub!\n");
+	return 0;
+}
+
+void
+nv50_graph_destroy_context(drm_device_t *dev, int channel)
+{
+	DRM_ERROR("stub!\n");
+}
+
+int
+nv50_graph_load_context(drm_device_t *dev, int channel)
+{
+	DRM_ERROR("stub!\n");
+	return 0;
+}
+
+int
+nv50_graph_save_context(drm_device_t *dev, int channel)
+{
+	DRM_ERROR("stub!\n");
+	return 0;
+}
+