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 #include "nv50.h" 25 26 #include <core/gpuobj.h> 27 #include <engine/disp.h> 28 #include <engine/fifo/chan.h> 29 #include <subdev/bar.h> 30 31 #include <nvif/class.h> 32 #include <nvif/event.h> 33 34 /******************************************************************************* 35 * software context 36 ******************************************************************************/ 37 38 static int 39 nv50_sw_chan_vblsem_release(struct nvkm_notify *notify) 40 { 41 struct nv50_sw_chan *chan = 42 container_of(notify, typeof(*chan), vblank.notify[notify->index]); 43 struct nvkm_sw *sw = chan->base.sw; 44 struct nvkm_device *device = sw->engine.subdev.device; 45 46 nvkm_wr32(device, 0x001704, chan->base.fifo->inst->addr >> 12); 47 nvkm_wr32(device, 0x001710, 0x80000000 | chan->vblank.ctxdma); 48 nvkm_bar_flush(device->bar); 49 50 if (device->chipset == 0x50) { 51 nvkm_wr32(device, 0x001570, chan->vblank.offset); 52 nvkm_wr32(device, 0x001574, chan->vblank.value); 53 } else { 54 nvkm_wr32(device, 0x060010, chan->vblank.offset); 55 nvkm_wr32(device, 0x060014, chan->vblank.value); 56 } 57 58 return NVKM_NOTIFY_DROP; 59 } 60 61 static bool 62 nv50_sw_chan_mthd(struct nvkm_sw_chan *base, int subc, u32 mthd, u32 data) 63 { 64 struct nv50_sw_chan *chan = nv50_sw_chan(base); 65 struct nvkm_engine *engine = chan->base.object.engine; 66 struct nvkm_device *device = engine->subdev.device; 67 switch (mthd) { 68 case 0x018c: chan->vblank.ctxdma = data; return true; 69 case 0x0400: chan->vblank.offset = data; return true; 70 case 0x0404: chan->vblank.value = data; return true; 71 case 0x0408: 72 if (data < device->disp->vblank.index_nr) { 73 nvkm_notify_get(&chan->vblank.notify[data]); 74 return true; 75 } 76 break; 77 default: 78 break; 79 } 80 return false; 81 } 82 83 void * 84 nv50_sw_chan_dtor(struct nvkm_sw_chan *base) 85 { 86 struct nv50_sw_chan *chan = nv50_sw_chan(base); 87 int i; 88 for (i = 0; i < ARRAY_SIZE(chan->vblank.notify); i++) 89 nvkm_notify_fini(&chan->vblank.notify[i]); 90 return chan; 91 } 92 93 static const struct nvkm_sw_chan_func 94 nv50_sw_chan = { 95 .dtor = nv50_sw_chan_dtor, 96 .mthd = nv50_sw_chan_mthd, 97 }; 98 99 static int 100 nv50_sw_chan_new(struct nvkm_sw *sw, struct nvkm_fifo_chan *fifoch, 101 const struct nvkm_oclass *oclass, struct nvkm_object **pobject) 102 { 103 struct nvkm_disp *disp = sw->engine.subdev.device->disp; 104 struct nv50_sw_chan *chan; 105 int ret, i; 106 107 if (!(chan = kzalloc(sizeof(*chan), GFP_KERNEL))) 108 return -ENOMEM; 109 *pobject = &chan->base.object; 110 111 ret = nvkm_sw_chan_ctor(&nv50_sw_chan, sw, fifoch, oclass, &chan->base); 112 if (ret) 113 return ret; 114 115 for (i = 0; disp && i < disp->vblank.index_nr; i++) { 116 ret = nvkm_notify_init(NULL, &disp->vblank, 117 nv50_sw_chan_vblsem_release, false, 118 &(struct nvif_notify_head_req_v0) { 119 .head = i, 120 }, 121 sizeof(struct nvif_notify_head_req_v0), 122 sizeof(struct nvif_notify_head_rep_v0), 123 &chan->vblank.notify[i]); 124 if (ret) 125 return ret; 126 } 127 128 return 0; 129 } 130 131 /******************************************************************************* 132 * software engine/subdev functions 133 ******************************************************************************/ 134 135 static const struct nvkm_sw_func 136 nv50_sw = { 137 .chan_new = nv50_sw_chan_new, 138 .sclass = { 139 { nvkm_nvsw_new, { -1, -1, NVIF_CLASS_SW_NV50 } }, 140 {} 141 } 142 }; 143 144 int 145 nv50_sw_new(struct nvkm_device *device, int index, struct nvkm_sw **psw) 146 { 147 return nvkm_sw_new_(&nv50_sw, device, index, psw); 148 } 149