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 <subdev/bar.h> 28 #include <engine/disp.h> 29 #include <engine/fifo.h> 30 31 #include <nvif/class.h> 32 #include <nvif/event.h> 33 34 /******************************************************************************* 35 * software context 36 ******************************************************************************/ 37 38 static int 39 gf100_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 u32 inst = chan->base.fifo->inst->addr >> 12; 46 47 nvkm_wr32(device, 0x001718, 0x80000000 | inst); 48 nvkm_bar_flush(device->bar); 49 nvkm_wr32(device, 0x06000c, upper_32_bits(chan->vblank.offset)); 50 nvkm_wr32(device, 0x060010, lower_32_bits(chan->vblank.offset)); 51 nvkm_wr32(device, 0x060014, chan->vblank.value); 52 53 return NVKM_NOTIFY_DROP; 54 } 55 56 static bool 57 gf100_sw_chan_mthd(struct nvkm_sw_chan *base, int subc, u32 mthd, u32 data) 58 { 59 struct nv50_sw_chan *chan = nv50_sw_chan(base); 60 struct nvkm_engine *engine = chan->base.object.engine; 61 struct nvkm_device *device = engine->subdev.device; 62 switch (mthd) { 63 case 0x0400: 64 chan->vblank.offset &= 0x00ffffffffULL; 65 chan->vblank.offset |= (u64)data << 32; 66 return true; 67 case 0x0404: 68 chan->vblank.offset &= 0xff00000000ULL; 69 chan->vblank.offset |= data; 70 return true; 71 case 0x0408: 72 chan->vblank.value = data; 73 return true; 74 case 0x040c: 75 if (data < device->disp->vblank.index_nr) { 76 nvkm_notify_get(&chan->vblank.notify[data]); 77 return true; 78 } 79 break; 80 case 0x600: /* MP.PM_UNK000 */ 81 nvkm_wr32(device, 0x419e00, data); 82 return true; 83 case 0x644: /* MP.TRAP_WARP_ERROR_EN */ 84 if (!(data & ~0x001ffffe)) { 85 nvkm_wr32(device, 0x419e44, data); 86 return true; 87 } 88 break; 89 case 0x6ac: /* MP.PM_UNK0AC */ 90 nvkm_wr32(device, 0x419eac, data); 91 return true; 92 default: 93 break; 94 } 95 return false; 96 } 97 98 static const struct nvkm_sw_chan_func 99 gf100_sw_chan = { 100 .dtor = nv50_sw_chan_dtor, 101 .mthd = gf100_sw_chan_mthd, 102 }; 103 104 static int 105 gf100_sw_chan_new(struct nvkm_sw *sw, struct nvkm_fifo_chan *fifoch, 106 const struct nvkm_oclass *oclass, 107 struct nvkm_object **pobject) 108 { 109 struct nvkm_disp *disp = sw->engine.subdev.device->disp; 110 struct nv50_sw_chan *chan; 111 int ret, i; 112 113 if (!(chan = kzalloc(sizeof(*chan), GFP_KERNEL))) 114 return -ENOMEM; 115 *pobject = &chan->base.object; 116 117 ret = nvkm_sw_chan_ctor(&gf100_sw_chan, sw, fifoch, oclass, 118 &chan->base); 119 if (ret) 120 return ret; 121 122 for (i = 0; disp && i < disp->vblank.index_nr; i++) { 123 ret = nvkm_notify_init(NULL, &disp->vblank, 124 gf100_sw_chan_vblsem_release, false, 125 &(struct nvif_notify_head_req_v0) { 126 .head = i, 127 }, 128 sizeof(struct nvif_notify_head_req_v0), 129 sizeof(struct nvif_notify_head_rep_v0), 130 &chan->vblank.notify[i]); 131 if (ret) 132 return ret; 133 } 134 135 return 0; 136 } 137 138 /******************************************************************************* 139 * software engine/subdev functions 140 ******************************************************************************/ 141 142 static const struct nvkm_sw_func 143 gf100_sw = { 144 .chan_new = gf100_sw_chan_new, 145 .sclass = { 146 { nvkm_nvsw_new, { -1, -1, NVIF_CLASS_SW_GF100 } }, 147 {} 148 } 149 }; 150 151 int 152 gf100_sw_new(struct nvkm_device *device, int index, struct nvkm_sw **psw) 153 { 154 return nvkm_sw_new_(&gf100_sw, device, index, psw); 155 } 156