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1/*2 * Copyright (C) 2010 Francisco Jerez.3 * All Rights Reserved.4 *5 * Permission is hereby granted, free of charge, to any person obtaining6 * a copy of this software and associated documentation files (the7 * "Software"), to deal in the Software without restriction, including8 * without limitation the rights to use, copy, modify, merge, publish,9 * distribute, sublicense, and/or sell copies of the Software, and to10 * permit persons to whom the Software is furnished to do so, subject to11 * the following conditions:12 *13 * The above copyright notice and this permission notice (including the14 * next paragraph) shall be included in all copies or substantial15 * portions of the Software.16 *17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,18 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.20 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE21 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION22 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION23 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.24 *25 */26#include "priv.h"27#include "ram.h"28 29void30nv20_fb_tile_init(struct nvkm_fb *fb, int i, u32 addr, u32 size, u32 pitch,31 u32 flags, struct nvkm_fb_tile *tile)32{33 tile->addr = 0x00000001 | addr;34 tile->limit = max(1u, addr + size) - 1;35 tile->pitch = pitch;36 if (flags & 4) {37 fb->func->tile.comp(fb, i, size, flags, tile);38 tile->addr |= 2;39 }40}41 42static void43nv20_fb_tile_comp(struct nvkm_fb *fb, int i, u32 size, u32 flags,44 struct nvkm_fb_tile *tile)45{46 u32 tiles = DIV_ROUND_UP(size, 0x40);47 u32 tags = round_up(tiles / fb->ram->parts, 0x40);48 if (!nvkm_mm_head(&fb->tags.mm, 0, 1, tags, tags, 1, &tile->tag)) {49 if (!(flags & 2)) tile->zcomp = 0x00000000; /* Z16 */50 else tile->zcomp = 0x04000000; /* Z24S8 */51 tile->zcomp |= tile->tag->offset;52 tile->zcomp |= 0x80000000; /* enable */53#ifdef __BIG_ENDIAN54 tile->zcomp |= 0x08000000;55#endif56 }57}58 59void60nv20_fb_tile_fini(struct nvkm_fb *fb, int i, struct nvkm_fb_tile *tile)61{62 tile->addr = 0;63 tile->limit = 0;64 tile->pitch = 0;65 tile->zcomp = 0;66 nvkm_mm_free(&fb->tags.mm, &tile->tag);67}68 69void70nv20_fb_tile_prog(struct nvkm_fb *fb, int i, struct nvkm_fb_tile *tile)71{72 struct nvkm_device *device = fb->subdev.device;73 nvkm_wr32(device, 0x100244 + (i * 0x10), tile->limit);74 nvkm_wr32(device, 0x100248 + (i * 0x10), tile->pitch);75 nvkm_wr32(device, 0x100240 + (i * 0x10), tile->addr);76 nvkm_rd32(device, 0x100240 + (i * 0x10));77 nvkm_wr32(device, 0x100300 + (i * 0x04), tile->zcomp);78}79 80u3281nv20_fb_tags(struct nvkm_fb *fb)82{83 const u32 tags = nvkm_rd32(fb->subdev.device, 0x100320);84 return tags ? tags + 1 : 0;85}86 87static const struct nvkm_fb_func88nv20_fb = {89 .tags = nv20_fb_tags,90 .tile.regions = 8,91 .tile.init = nv20_fb_tile_init,92 .tile.comp = nv20_fb_tile_comp,93 .tile.fini = nv20_fb_tile_fini,94 .tile.prog = nv20_fb_tile_prog,95 .ram_new = nv20_ram_new,96};97 98int99nv20_fb_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, struct nvkm_fb **pfb)100{101 return nvkm_fb_new_(&nv20_fb, device, type, inst, pfb);102}103