Ben Skeggs | ebb945a | 2012-07-20 08:17:34 +1000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2012 Red Hat Inc. |
| 3 | * |
| 4 | * Permission is hereby granted, free of charge, to any person obtaining a |
| 5 | * copy of this software and associated documentation files (the "Software"), |
| 6 | * to deal in the Software without restriction, including without limitation |
| 7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| 8 | * and/or sell copies of the Software, and to permit persons to whom the |
| 9 | * Software is furnished to do so, subject to the following conditions: |
| 10 | * |
| 11 | * The above copyright notice and this permission notice shall be included in |
| 12 | * all copies or substantial portions of the Software. |
| 13 | * |
| 14 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 15 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 16 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 17 | * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR |
| 18 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
| 19 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
| 20 | * OTHER DEALINGS IN THE SOFTWARE. |
| 21 | * |
| 22 | * Authors: Ben Skeggs |
| 23 | */ |
| 24 | |
| 25 | #include <subdev/bar.h> |
| 26 | |
| 27 | #include <engine/software.h> |
| 28 | #include <engine/disp.h> |
| 29 | |
| 30 | struct nvd0_disp_priv { |
| 31 | struct nouveau_disp base; |
| 32 | }; |
| 33 | |
| 34 | static struct nouveau_oclass |
| 35 | nvd0_disp_sclass[] = { |
| 36 | {}, |
| 37 | }; |
| 38 | |
| 39 | static void |
| 40 | nvd0_disp_intr_vblank(struct nvd0_disp_priv *priv, int crtc) |
| 41 | { |
| 42 | struct nouveau_bar *bar = nouveau_bar(priv); |
| 43 | struct nouveau_disp *disp = &priv->base; |
| 44 | struct nouveau_software_chan *chan, *temp; |
| 45 | unsigned long flags; |
| 46 | |
| 47 | spin_lock_irqsave(&disp->vblank.lock, flags); |
| 48 | list_for_each_entry_safe(chan, temp, &disp->vblank.list, vblank.head) { |
| 49 | if (chan->vblank.crtc != crtc) |
| 50 | continue; |
| 51 | |
| 52 | nv_wr32(priv, 0x001718, 0x80000000 | chan->vblank.channel); |
| 53 | bar->flush(bar); |
| 54 | nv_wr32(priv, 0x06000c, upper_32_bits(chan->vblank.offset)); |
| 55 | nv_wr32(priv, 0x060010, lower_32_bits(chan->vblank.offset)); |
| 56 | nv_wr32(priv, 0x060014, chan->vblank.value); |
| 57 | |
| 58 | list_del(&chan->vblank.head); |
| 59 | if (disp->vblank.put) |
| 60 | disp->vblank.put(disp->vblank.data, crtc); |
| 61 | } |
| 62 | spin_unlock_irqrestore(&disp->vblank.lock, flags); |
| 63 | |
| 64 | if (disp->vblank.notify) |
| 65 | disp->vblank.notify(disp->vblank.data, crtc); |
| 66 | } |
| 67 | |
| 68 | static void |
| 69 | nvd0_disp_intr(struct nouveau_subdev *subdev) |
| 70 | { |
| 71 | struct nvd0_disp_priv *priv = (void *)subdev; |
| 72 | u32 intr = nv_rd32(priv, 0x610088); |
| 73 | int i; |
| 74 | |
| 75 | for (i = 0; i < 4; i++) { |
| 76 | u32 mask = 0x01000000 << i; |
| 77 | if (mask & intr) { |
| 78 | u32 stat = nv_rd32(priv, 0x6100bc + (i * 0x800)); |
| 79 | if (stat & 0x00000001) |
| 80 | nvd0_disp_intr_vblank(priv, i); |
| 81 | nv_mask(priv, 0x6100bc + (i * 0x800), 0, 0); |
| 82 | nv_rd32(priv, 0x6100c0 + (i * 0x800)); |
| 83 | } |
| 84 | } |
| 85 | } |
| 86 | |
| 87 | static int |
| 88 | nvd0_disp_ctor(struct nouveau_object *parent, struct nouveau_object *engine, |
| 89 | struct nouveau_oclass *oclass, void *data, u32 size, |
| 90 | struct nouveau_object **pobject) |
| 91 | { |
| 92 | struct nvd0_disp_priv *priv; |
| 93 | int ret; |
| 94 | |
| 95 | ret = nouveau_disp_create(parent, engine, oclass, "PDISP", |
| 96 | "display", &priv); |
| 97 | *pobject = nv_object(priv); |
| 98 | if (ret) |
| 99 | return ret; |
| 100 | |
| 101 | nv_engine(priv)->sclass = nvd0_disp_sclass; |
| 102 | nv_subdev(priv)->intr = nvd0_disp_intr; |
| 103 | |
| 104 | INIT_LIST_HEAD(&priv->base.vblank.list); |
| 105 | spin_lock_init(&priv->base.vblank.lock); |
| 106 | return 0; |
| 107 | } |
| 108 | |
| 109 | struct nouveau_oclass |
| 110 | nvd0_disp_oclass = { |
| 111 | .handle = NV_ENGINE(DISP, 0xd0), |
| 112 | .ofuncs = &(struct nouveau_ofuncs) { |
| 113 | .ctor = nvd0_disp_ctor, |
| 114 | .dtor = _nouveau_disp_dtor, |
| 115 | .init = _nouveau_disp_init, |
| 116 | .fini = _nouveau_disp_fini, |
| 117 | }, |
| 118 | }; |