Initial import

1 files changed, 61 insertions, 0 deletions

diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/fb/nv36.c b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/nv36.c
new file mode 100644
index 000000000..cad75a1ce
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/nv36.c
@@ -0,0 +1,61 @@
+/*
+ * 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 "nv04.h"
+
+static void
+nv36_fb_tile_comp(struct nvkm_fb *pfb, int i, u32 size, u32 flags,
+		  struct nvkm_fb_tile *tile)
+{
+	u32 tiles = DIV_ROUND_UP(size, 0x40);
+	u32 tags  = round_up(tiles / pfb->ram->parts, 0x40);
+	if (!nvkm_mm_head(&pfb->tags, 0, 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
+	}
+}
+
+struct nvkm_oclass *
+nv36_fb_oclass = &(struct nv04_fb_impl) {
+	.base.base.handle = NV_SUBDEV(FB, 0x36),
+	.base.base.ofuncs = &(struct nvkm_ofuncs) {
+		.ctor = nv04_fb_ctor,
+		.dtor = _nvkm_fb_dtor,
+		.init = nv30_fb_init,
+		.fini = _nvkm_fb_fini,
+	},
+	.base.memtype = nv04_fb_memtype_valid,
+	.base.ram = &nv20_ram_oclass,
+	.tile.regions = 8,
+	.tile.init = nv30_fb_tile_init,
+	.tile.comp = nv36_fb_tile_comp,
+	.tile.fini = nv20_fb_tile_fini,
+	.tile.prog = nv20_fb_tile_prog,
+}.base.base;