projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 8bded189 FJ |
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 | ||
| 27 | #include "drmP.h" | |
| 28 | #include "drm.h" | |
| 29 | #include "nouveau_drv.h" | |
| 30 | #include "nouveau_drm.h" | |
| 31 | ||
| 32 | static int | |
| 4d1defd7 FJ |
33 | calc_bias(struct drm_device *dev, int k, int i, int j) |
| 34 | { | |
| 35 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
| 36 | int b = (dev_priv->chipset > 0x30 ? | |
| 37 | nv_rd32(dev, 0x122c + 0x10 * k + 0x4 * j) >> (4 * (i ^ 1)) : | |
| 38 | 0) & 0xf; | |
| 39 | ||
| 40 | return 2 * (b & 0x8 ? b - 0x10 : b); | |
| 41 | } | |
| 42 | ||
| 43 | static int | |
| 44 | calc_ref(struct drm_device *dev, int l, int k, int i) | |
| 8bded189 FJ |
45 | { |
| 46 | int j, x = 0; | |
| 47 | ||
| 48 | for (j = 0; j < 4; j++) { | |
| 4d1defd7 | 49 | int m = (l >> (8 * i) & 0xff) + calc_bias(dev, k, i, j); |
| 8bded189 | 50 | |
| 4d1defd7 | 51 | x |= (0x80 | clamp(m, 0, 0x1f)) << (8 * j); |
| 8bded189 FJ |
52 | } |
| 53 | ||
| 54 | return x; | |
| 55 | } | |
| 56 | ||
| 57 | int | |
| 58 | nv30_fb_init(struct drm_device *dev) | |
| 59 | { | |
| 60 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
| 61 | struct nouveau_fb_engine *pfb = &dev_priv->engine.fb; | |
| 62 | int i, j; | |
| 63 | ||
| 64 | pfb->num_tiles = NV10_PFB_TILE__SIZE; | |
| 65 | ||
| 66 | /* Turn all the tiling regions off. */ | |
| 67 | for (i = 0; i < pfb->num_tiles; i++) | |
| 68 | pfb->set_region_tiling(dev, i, 0, 0, 0); | |
| 69 | ||
| 70 | /* Init the memory timing regs at 0x10037c/0x1003ac */ | |
| 71 | if (dev_priv->chipset == 0x30 || | |
| 72 | dev_priv->chipset == 0x31 || | |
| 73 | dev_priv->chipset == 0x35) { | |
| 74 | /* Related to ROP count */ | |
| 75 | int n = (dev_priv->chipset == 0x31 ? 2 : 4); | |
| 8bded189 FJ |
76 | int l = nv_rd32(dev, 0x1003d0); |
| 77 | ||
| 78 | for (i = 0; i < n; i++) { | |
| 79 | for (j = 0; j < 3; j++) | |
| 80 | nv_wr32(dev, 0x10037c + 0xc * i + 0x4 * j, | |
| 4d1defd7 | 81 | calc_ref(dev, l, 0, j)); |
| 8bded189 FJ |
82 | |
| 83 | for (j = 0; j < 2; j++) | |
| 84 | nv_wr32(dev, 0x1003ac + 0x8 * i + 0x4 * j, | |
| 4d1defd7 | 85 | calc_ref(dev, l, 1, j)); |
| 8bded189 FJ |
86 | } |
| 87 | } | |
| 88 | ||
| 89 | return 0; | |
| 90 | } | |
| 91 | ||
| 92 | void | |
| 93 | nv30_fb_takedown(struct drm_device *dev) | |
| 94 | { | |
| 95 | } |