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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 29static void30nv44_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; /* mode = vram */34 tile->addr |= addr;35 tile->limit = max(1u, addr + size) - 1;36 tile->pitch = pitch;37}38 39void40nv44_fb_tile_prog(struct nvkm_fb *fb, int i, struct nvkm_fb_tile *tile)41{42 struct nvkm_device *device = fb->subdev.device;43 nvkm_wr32(device, 0x100604 + (i * 0x10), tile->limit);44 nvkm_wr32(device, 0x100608 + (i * 0x10), tile->pitch);45 nvkm_wr32(device, 0x100600 + (i * 0x10), tile->addr);46 nvkm_rd32(device, 0x100600 + (i * 0x10));47}48 49void50nv44_fb_init(struct nvkm_fb *fb)51{52 struct nvkm_device *device = fb->subdev.device;53 nvkm_wr32(device, 0x100850, 0x80000000);54 nvkm_wr32(device, 0x100800, 0x00000001);55}56 57static const struct nvkm_fb_func58nv44_fb = {59 .init = nv44_fb_init,60 .tile.regions = 12,61 .tile.init = nv44_fb_tile_init,62 .tile.fini = nv20_fb_tile_fini,63 .tile.prog = nv44_fb_tile_prog,64 .ram_new = nv44_ram_new,65};66 67int68nv44_fb_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, struct nvkm_fb **pfb)69{70 return nvkm_fb_new_(&nv44_fb, device, type, inst, pfb);71}72