drm/nouveau: restructure source tree, split core from drm implementation

Future work will be headed in the way of separating the policy supplied by
the nouveau drm module from the mechanisms provided by the driver core.

There will be a couple of major classes (subdev, engine) of driver modules
that have clearly defined tasks, and the further directory structure change
is to reflect this.

No code changes here whatsoever, aside from fixing up a couple of include
file pathnames.

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

3 files changed, 92 insertions, 0 deletions

diff --git a/drivers/gpu/drm/nouveau/core/subdev/mc/nv04.c b/drivers/gpu/drm/nouveau/core/subdev/mc/nv04.c
new file mode 100644
index 0000000..2af43a1
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/core/subdev/mc/nv04.c
@@ -0,0 +1,24 @@
+#include "drmP.h"
+#include "drm.h"
+#include "nouveau_drv.h"
+#include "nouveau_drm.h"
+
+int
+nv04_mc_init(struct drm_device *dev)
+{
+	/* Power up everything, resetting each individual unit will
+	 * be done later if needed.
+	 */
+
+	nv_wr32(dev, NV03_PMC_ENABLE, 0xFFFFFFFF);
+
+	/* Disable PROM access. */
+	nv_wr32(dev, NV_PBUS_PCI_NV_20, NV_PBUS_PCI_NV_20_ROM_SHADOW_ENABLED);
+
+	return 0;
+}
+
+void
+nv04_mc_takedown(struct drm_device *dev)
+{
+}
diff --git a/drivers/gpu/drm/nouveau/core/subdev/mc/nv40.c b/drivers/gpu/drm/nouveau/core/subdev/mc/nv40.c
new file mode 100644
index 0000000..03c0d4c
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/core/subdev/mc/nv40.c
@@ -0,0 +1,28 @@
+#include "drmP.h"
+#include "drm.h"
+#include "nouveau_drv.h"
+#include "nouveau_drm.h"
+
+int
+nv40_mc_init(struct drm_device *dev)
+{
+	/* Power up everything, resetting each individual unit will
+	 * be done later if needed.
+	 */
+	nv_wr32(dev, NV03_PMC_ENABLE, 0xFFFFFFFF);
+
+	if (nv44_graph_class(dev)) {
+		u32 tmp = nv_rd32(dev, NV04_PFB_FIFO_DATA);
+		nv_wr32(dev, NV40_PMC_1700, tmp);
+		nv_wr32(dev, NV40_PMC_1704, 0);
+		nv_wr32(dev, NV40_PMC_1708, 0);
+		nv_wr32(dev, NV40_PMC_170C, tmp);
+	}
+
+	return 0;
+}
+
+void
+nv40_mc_takedown(struct drm_device *dev)
+{
+}
diff --git a/drivers/gpu/drm/nouveau/core/subdev/mc/nv50.c b/drivers/gpu/drm/nouveau/core/subdev/mc/nv50.c
new file mode 100644
index 0000000..e0a9c3f
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/core/subdev/mc/nv50.c
@@ -0,0 +1,40 @@
+/*
+ * 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"
+
+int
+nv50_mc_init(struct drm_device *dev)
+{
+	nv_wr32(dev, NV03_PMC_ENABLE, 0xFFFFFFFF);
+	return 0;
+}
+
+void nv50_mc_takedown(struct drm_device *dev)
+{
+}