1 /* 2 * Copyright (C) 2010 Francisco Jerez. 3 * All Rights Reserved. 4 * 5 * Permission is hereby granted, free of charge, to any person obtaining 6 * a copy of this software and associated documentation files (the 7 * "Software"), to deal in the Software without restriction, including 8 * without limitation the rights to use, copy, modify, merge, publish, 9 * distribute, sublicense, and/or sell copies of the Software, and to 10 * permit persons to whom the Software is furnished to do so, subject to 11 * the following conditions: 12 * 13 * The above copyright notice and this permission notice (including the 14 * next paragraph) shall be included in all copies or substantial 15 * 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 OF 19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 20 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE 21 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 22 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 23 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 24 * 25 */ 26 #include "nv04.h" 27 28 void 29 nv20_fb_tile_init(struct nvkm_fb *fb, int i, u32 addr, u32 size, u32 pitch, 30 u32 flags, struct nvkm_fb_tile *tile) 31 { 32 tile->addr = 0x00000001 | addr; 33 tile->limit = max(1u, addr + size) - 1; 34 tile->pitch = pitch; 35 if (flags & 4) { 36 fb->tile.comp(fb, i, size, flags, tile); 37 tile->addr |= 2; 38 } 39 } 40 41 static void 42 nv20_fb_tile_comp(struct nvkm_fb *fb, int i, u32 size, u32 flags, 43 struct nvkm_fb_tile *tile) 44 { 45 u32 tiles = DIV_ROUND_UP(size, 0x40); 46 u32 tags = round_up(tiles / fb->ram->parts, 0x40); 47 if (!nvkm_mm_head(&fb->tags, 0, 1, tags, tags, 1, &tile->tag)) { 48 if (!(flags & 2)) tile->zcomp = 0x00000000; /* Z16 */ 49 else tile->zcomp = 0x04000000; /* Z24S8 */ 50 tile->zcomp |= tile->tag->offset; 51 tile->zcomp |= 0x80000000; /* enable */ 52 #ifdef __BIG_ENDIAN 53 tile->zcomp |= 0x08000000; 54 #endif 55 } 56 } 57 58 void 59 nv20_fb_tile_fini(struct nvkm_fb *fb, int i, struct nvkm_fb_tile *tile) 60 { 61 tile->addr = 0; 62 tile->limit = 0; 63 tile->pitch = 0; 64 tile->zcomp = 0; 65 nvkm_mm_free(&fb->tags, &tile->tag); 66 } 67 68 void 69 nv20_fb_tile_prog(struct nvkm_fb *fb, int i, struct nvkm_fb_tile *tile) 70 { 71 struct nvkm_device *device = fb->subdev.device; 72 nvkm_wr32(device, 0x100244 + (i * 0x10), tile->limit); 73 nvkm_wr32(device, 0x100248 + (i * 0x10), tile->pitch); 74 nvkm_wr32(device, 0x100240 + (i * 0x10), tile->addr); 75 nvkm_rd32(device, 0x100240 + (i * 0x10)); 76 nvkm_wr32(device, 0x100300 + (i * 0x04), tile->zcomp); 77 } 78 79 struct nvkm_oclass * 80 nv20_fb_oclass = &(struct nv04_fb_impl) { 81 .base.base.handle = NV_SUBDEV(FB, 0x20), 82 .base.base.ofuncs = &(struct nvkm_ofuncs) { 83 .ctor = nv04_fb_ctor, 84 .dtor = _nvkm_fb_dtor, 85 .init = _nvkm_fb_init, 86 .fini = _nvkm_fb_fini, 87 }, 88 .base.memtype = nv04_fb_memtype_valid, 89 .base.ram = &nv20_ram_oclass, 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 }.base.base; 96