2 * Copyright (C) 2010 Francisco Jerez.
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:
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.
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.
29 #include "nouveau_drv.h"
30 #include "nouveau_drm.h"
33 calc_ref(int b, int l, int i)
37 for (j = 0; j < 4; j++) {
38 int n = (b >> (8 * j) & 0xf);
39 int m = (l >> (8 * i) & 0xff) + 2 * (n & 0x8 ? n - 0x10 : n);
41 x |= (0x80 | (m & 0x1f)) << (8 * j);
48 nv30_fb_init(struct drm_device *dev)
50 struct drm_nouveau_private *dev_priv = dev->dev_private;
51 struct nouveau_fb_engine *pfb = &dev_priv->engine.fb;
54 pfb->num_tiles = NV10_PFB_TILE__SIZE;
56 /* Turn all the tiling regions off. */
57 for (i = 0; i < pfb->num_tiles; i++)
58 pfb->set_region_tiling(dev, i, 0, 0, 0);
60 /* Init the memory timing regs at 0x10037c/0x1003ac */
61 if (dev_priv->chipset == 0x30 ||
62 dev_priv->chipset == 0x31 ||
63 dev_priv->chipset == 0x35) {
64 /* Related to ROP count */
65 int n = (dev_priv->chipset == 0x31 ? 2 : 4);
66 int b = (dev_priv->chipset > 0x30 ?
67 nv_rd32(dev, 0x122c) & 0xf : 0);
68 int l = nv_rd32(dev, 0x1003d0);
70 for (i = 0; i < n; i++) {
71 for (j = 0; j < 3; j++)
72 nv_wr32(dev, 0x10037c + 0xc * i + 0x4 * j,
75 for (j = 0; j < 2; j++)
76 nv_wr32(dev, 0x1003ac + 0x8 * i + 0x4 * j,
85 nv30_fb_takedown(struct drm_device *dev)