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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 29void30nv30_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 /* for performance, select alternate bank offset for zeta */34 if (!(flags & 4)) {35 tile->addr = (0 << 4);36 } else {37 if (fb->func->tile.comp) /* z compression */38 fb->func->tile.comp(fb, i, size, flags, tile);39 tile->addr = (1 << 4);40 }41 42 tile->addr |= 0x00000001; /* enable */43 tile->addr |= addr;44 tile->limit = max(1u, addr + size) - 1;45 tile->pitch = pitch;46}47 48static void49nv30_fb_tile_comp(struct nvkm_fb *fb, int i, u32 size, u32 flags,50 struct nvkm_fb_tile *tile)51{52 u32 tiles = DIV_ROUND_UP(size, 0x40);53 u32 tags = round_up(tiles / fb->ram->parts, 0x40);54 if (!nvkm_mm_head(&fb->tags.mm, 0, 1, tags, tags, 1, &tile->tag)) {55 if (flags & 2) tile->zcomp |= 0x01000000; /* Z16 */56 else tile->zcomp |= 0x02000000; /* Z24S8 */57 tile->zcomp |= ((tile->tag->offset ) >> 6);58 tile->zcomp |= ((tile->tag->offset + tags - 1) >> 6) << 12;59#ifdef __BIG_ENDIAN60 tile->zcomp |= 0x10000000;61#endif62 }63}64 65static int66calc_bias(struct nvkm_fb *fb, int k, int i, int j)67{68 struct nvkm_device *device = fb->subdev.device;69 int b = (device->chipset > 0x30 ?70 nvkm_rd32(device, 0x122c + 0x10 * k + 0x4 * j) >>71 (4 * (i ^ 1)) :72 0) & 0xf;73 74 return 2 * (b & 0x8 ? b - 0x10 : b);75}76 77static int78calc_ref(struct nvkm_fb *fb, int l, int k, int i)79{80 int j, x = 0;81 82 for (j = 0; j < 4; j++) {83 int m = (l >> (8 * i) & 0xff) + calc_bias(fb, k, i, j);84 85 x |= (0x80 | clamp(m, 0, 0x1f)) << (8 * j);86 }87 88 return x;89}90 91void92nv30_fb_init(struct nvkm_fb *fb)93{94 struct nvkm_device *device = fb->subdev.device;95 int i, j;96 97 /* Init the memory timing regs at 0x10037c/0x1003ac */98 if (device->chipset == 0x30 ||99 device->chipset == 0x31 ||100 device->chipset == 0x35) {101 /* Related to ROP count */102 int n = (device->chipset == 0x31 ? 2 : 4);103 int l = nvkm_rd32(device, 0x1003d0);104 105 for (i = 0; i < n; i++) {106 for (j = 0; j < 3; j++)107 nvkm_wr32(device, 0x10037c + 0xc * i + 0x4 * j,108 calc_ref(fb, l, 0, j));109 110 for (j = 0; j < 2; j++)111 nvkm_wr32(device, 0x1003ac + 0x8 * i + 0x4 * j,112 calc_ref(fb, l, 1, j));113 }114 }115}116 117static const struct nvkm_fb_func118nv30_fb = {119 .tags = nv20_fb_tags,120 .init = nv30_fb_init,121 .tile.regions = 8,122 .tile.init = nv30_fb_tile_init,123 .tile.comp = nv30_fb_tile_comp,124 .tile.fini = nv20_fb_tile_fini,125 .tile.prog = nv20_fb_tile_prog,126 .ram_new = nv20_ram_new,127};128 129int130nv30_fb_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, struct nvkm_fb **pfb)131{132 return nvkm_fb_new_(&nv30_fb, device, type, inst, pfb);133}134