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 "priv.h" 27 #include "ram.h" 28 29 void 30 nv20_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 42 static void 43 nv20_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_ENDIAN 54 tile->zcomp |= 0x08000000; 55 #endif 56 } 57 } 58 59 void 60 nv20_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 69 void 70 nv20_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 80 u32 81 nv20_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 87 static const struct nvkm_fb_func 88 nv20_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 98 int 99 nv20_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