subdev/fb/nv10.c

0001 /*
0002  * Copyright (C) 2010 Francisco Jerez.
0003  * All Rights Reserved.
0004  *
0005  * Permission is hereby granted, free of charge, to any person obtaining
0006  * a copy of this software and associated documentation files (the
0007  * "Software"), to deal in the Software without restriction, including
0008  * without limitation the rights to use, copy, modify, merge, publish,
0009  * distribute, sublicense, and/or sell copies of the Software, and to
0010  * permit persons to whom the Software is furnished to do so, subject to
0011  * the following conditions:
0012  *
0013  * The above copyright notice and this permission notice (including the
0014  * next paragraph) shall be included in all copies or substantial
0015  * portions of the Software.
0016  *
0017  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
0018  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
0019  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
0020  * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
0021  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
0022  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
0023  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
0024  *
0025  */
0026 #include "priv.h"
0027 #include "ram.h"
0028
0029 void
0030 nv10_fb_tile_init(struct nvkm_fb *fb, int i, u32 addr, u32 size, u32 pitch,
0031           u32 flags, struct nvkm_fb_tile *tile)
0032 {
0033     tile->addr  = 0x80000000 | addr;
0034     tile->limit = max(1u, addr + size) - 1;
0035     tile->pitch = pitch;
0036 }
0037
0038 void
0039 nv10_fb_tile_fini(struct nvkm_fb *fb, int i, struct nvkm_fb_tile *tile)
0040 {
0041     tile->addr  = 0;
0042     tile->limit = 0;
0043     tile->pitch = 0;
0044     tile->zcomp = 0;
0045 }
0046
0047 void
0048 nv10_fb_tile_prog(struct nvkm_fb *fb, int i, struct nvkm_fb_tile *tile)
0049 {
0050     struct nvkm_device *device = fb->subdev.device;
0051     nvkm_wr32(device, 0x100244 + (i * 0x10), tile->limit);
0052     nvkm_wr32(device, 0x100248 + (i * 0x10), tile->pitch);
0053     nvkm_wr32(device, 0x100240 + (i * 0x10), tile->addr);
0054     nvkm_rd32(device, 0x100240 + (i * 0x10));
0055 }
0056
0057 static const struct nvkm_fb_func
0058 nv10_fb = {
0059     .tile.regions = 8,
0060     .tile.init = nv10_fb_tile_init,
0061     .tile.fini = nv10_fb_tile_fini,
0062     .tile.prog = nv10_fb_tile_prog,
0063     .ram_new = nv10_ram_new,
0064 };
0065
0066 int
0067 nv10_fb_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, struct nvkm_fb **pfb)
0068 {
0069     return nvkm_fb_new_(&nv10_fb, device, type, inst, pfb);
0070 }