1 files changed, 82 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/core/subdev/fb/nv36.c b/drivers/gpu/drm/nouveau/core/subdev/fb/nv36.c
new file mode 100644
index 000000000000..797ab3b821b9
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/core/subdev/fb/nv36.c
@@ -0,0 +1,82 @@
+/*
+ * Copyright (C) 2010 Francisco Jerez.
+ * 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 <subdev/fb.h>
+
+struct nv36_fb_priv {
+	struct nouveau_fb base;
+};
+
+static void
+nv36_fb_tile_comp(struct nouveau_fb *pfb, int i, u32 size, u32 flags,
+		  struct nouveau_fb_tile *tile)
+{
+	u32 tiles = DIV_ROUND_UP(size, 0x40);
+	u32 tags  = round_up(tiles / pfb->ram.parts, 0x40);
+	if (!nouveau_mm_head(&pfb->tags, 1, tags, tags, 1, &tile->tag)) {
+		if (flags & 2) tile->zcomp |= 0x10000000; /* Z16 */
+		else           tile->zcomp |= 0x20000000; /* Z24S8 */
+		tile->zcomp |= ((tile->tag->offset           ) >> 6);
+		tile->zcomp |= ((tile->tag->offset + tags - 1) >> 6) << 14;
+#ifdef __BIG_ENDIAN
+		tile->zcomp |= 0x80000000;
+#endif
+	}
+}
+
+static int
+nv36_fb_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
+	     struct nouveau_oclass *oclass, void *data, u32 size,
+	     struct nouveau_object **pobject)
+{
+	struct nv36_fb_priv *priv;
+	int ret;
+
+	ret = nouveau_fb_create(parent, engine, oclass, &priv);
+	*pobject = nv_object(priv);
+	if (ret)
+		return ret;
+
+	priv->base.memtype_valid = nv04_fb_memtype_valid;
+	priv->base.ram.init = nv20_fb_vram_init;
+	priv->base.tile.regions = 8;
+	priv->base.tile.init = nv30_fb_tile_init;
+	priv->base.tile.comp = nv36_fb_tile_comp;
+	priv->base.tile.fini = nv20_fb_tile_fini;
+	priv->base.tile.prog = nv20_fb_tile_prog;
+	return nouveau_fb_preinit(&priv->base);
+}
+
+struct nouveau_oclass
+nv36_fb_oclass = {
+	.handle = NV_SUBDEV(FB, 0x36),
+	.ofuncs = &(struct nouveau_ofuncs) {
+		.ctor = nv36_fb_ctor,
+		.dtor = _nouveau_fb_dtor,
+		.init = nv30_fb_init,
+		.fini = _nouveau_fb_fini,
+	},
+};