subdev/fb/nv35.c

0001 /*
0002  * Copyright (C) 2010 Francisco Jerez.
0003  * All Rights Reserved.
0004  *
0005  * Permission is hereby granted, free of charge, to any person obtaining
0006  * a copy of this software and associated documentation files (the
0007  * "Software"), to deal in the Software without restriction, including
0008  * without limitation the rights to use, copy, modify, merge, publish,
0009  * distribute, sublicense, and/or sell copies of the Software, and to
0010  * permit persons to whom the Software is furnished to do so, subject to
0011  * the following conditions:
0012  *
0013  * The above copyright notice and this permission notice (including the
0014  * next paragraph) shall be included in all copies or substantial
0015  * portions of the Software.
0016  *
0017  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
0018  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
0019  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
0020  * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
0021  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
0022  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
0023  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
0024  *
0025  */
0026 #include "priv.h"
0027 #include "ram.h"
0028
0029 static void
0030 nv35_fb_tile_comp(struct nvkm_fb *fb, int i, u32 size, u32 flags,
0031           struct nvkm_fb_tile *tile)
0032 {
0033     u32 tiles = DIV_ROUND_UP(size, 0x40);
0034     u32 tags  = round_up(tiles / fb->ram->parts, 0x40);
0035     if (!nvkm_mm_head(&fb->tags.mm, 0, 1, tags, tags, 1, &tile->tag)) {
0036         if (flags & 2) tile->zcomp |= 0x04000000; /* Z16 */
0037         else           tile->zcomp |= 0x08000000; /* Z24S8 */
0038         tile->zcomp |= ((tile->tag->offset           ) >> 6);
0039         tile->zcomp |= ((tile->tag->offset + tags - 1) >> 6) << 13;
0040 #ifdef __BIG_ENDIAN
0041         tile->zcomp |= 0x40000000;
0042 #endif
0043     }
0044 }
0045
0046 static const struct nvkm_fb_func
0047 nv35_fb = {
0048     .tags = nv20_fb_tags,
0049     .init = nv30_fb_init,
0050     .tile.regions = 8,
0051     .tile.init = nv30_fb_tile_init,
0052     .tile.comp = nv35_fb_tile_comp,
0053     .tile.fini = nv20_fb_tile_fini,
0054     .tile.prog = nv20_fb_tile_prog,
0055     .ram_new = nv20_ram_new,
0056 };
0057
0058 int
0059 nv35_fb_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, struct nvkm_fb **pfb)
0060 {
0061     return nvkm_fb_new_(&nv35_fb, device, type, inst, pfb);
0062 }