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 <subdev/bar.h> 27 #include <engine/disp.h> 28 #include <engine/fifo.h> 29 30 #include <nvif/event.h> 31 #include <nvif/ioctl.h> 32 33 /******************************************************************************* 34 * software context 35 ******************************************************************************/ 36 37 static int 38 gf100_sw_chan_vblsem_release(struct nvkm_notify *notify) 39 { 40 struct nv50_sw_chan *chan = 41 container_of(notify, typeof(*chan), vblank.notify[notify->index]); 42 struct nvkm_sw *sw = chan->base.sw; 43 struct nvkm_device *device = sw->engine.subdev.device; 44 u32 inst = chan->base.fifo->inst->addr >> 12; 45 46 nvkm_wr32(device, 0x001718, 0x80000000 | inst); 47 nvkm_bar_flush(device->bar); 48 nvkm_wr32(device, 0x06000c, upper_32_bits(chan->vblank.offset)); 49 nvkm_wr32(device, 0x060010, lower_32_bits(chan->vblank.offset)); 50 nvkm_wr32(device, 0x060014, chan->vblank.value); 51 52 return NVKM_NOTIFY_DROP; 53 } 54 55 static bool 56 gf100_sw_chan_mthd(struct nvkm_sw_chan *base, int subc, u32 mthd, u32 data) 57 { 58 struct nv50_sw_chan *chan = nv50_sw_chan(base); 59 struct nvkm_engine *engine = chan->base.object.engine; 60 struct nvkm_device *device = engine->subdev.device; 61 switch (mthd) { 62 case 0x0400: 63 chan->vblank.offset &= 0x00ffffffffULL; 64 chan->vblank.offset |= (u64)data << 32; 65 return true; 66 case 0x0404: 67 chan->vblank.offset &= 0xff00000000ULL; 68 chan->vblank.offset |= data; 69 return true; 70 case 0x0408: 71 chan->vblank.value = data; 72 return true; 73 case 0x040c: 74 if (data < device->disp->vblank.index_nr) { 75 nvkm_notify_get(&chan->vblank.notify[data]); 76 return true; 77 } 78 break; 79 case 0x600: /* MP.PM_UNK000 */ 80 nvkm_wr32(device, 0x419e00, data); 81 return true; 82 case 0x644: /* MP.TRAP_WARP_ERROR_EN */ 83 if (!(data & ~0x001ffffe)) { 84 nvkm_wr32(device, 0x419e44, data); 85 return true; 86 } 87 break; 88 case 0x6ac: /* MP.PM_UNK0AC */ 89 nvkm_wr32(device, 0x419eac, data); 90 return true; 91 default: 92 break; 93 } 94 return false; 95 } 96 97 static const struct nvkm_sw_chan_func 98 gf100_sw_chan = { 99 .dtor = nv50_sw_chan_dtor, 100 .mthd = gf100_sw_chan_mthd, 101 }; 102 103 static int 104 gf100_sw_chan_new(struct nvkm_sw *sw, struct nvkm_fifo_chan *fifoch, 105 const struct nvkm_oclass *oclass, 106 struct nvkm_object **pobject) 107 { 108 struct nvkm_disp *disp = sw->engine.subdev.device->disp; 109 struct nv50_sw_chan *chan; 110 int ret, i; 111 112 if (!(chan = kzalloc(sizeof(*chan), GFP_KERNEL))) 113 return -ENOMEM; 114 *pobject = &chan->base.object; 115 116 ret = nvkm_sw_chan_ctor(&gf100_sw_chan, sw, fifoch, oclass, 117 &chan->base); 118 if (ret) 119 return ret; 120 121 for (i = 0; disp && i < disp->vblank.index_nr; i++) { 122 ret = nvkm_notify_init(NULL, &disp->vblank, 123 gf100_sw_chan_vblsem_release, false, 124 &(struct nvif_notify_head_req_v0) { 125 .head = i, 126 }, 127 sizeof(struct nvif_notify_head_req_v0), 128 sizeof(struct nvif_notify_head_rep_v0), 129 &chan->vblank.notify[i]); 130 if (ret) 131 return ret; 132 } 133 134 return 0; 135 } 136 137 /******************************************************************************* 138 * software engine/subdev functions 139 ******************************************************************************/ 140 141 static const struct nvkm_sw_func 142 gf100_sw_func = { 143 .chan_new = gf100_sw_chan_new, 144 .sclass = { 145 { nvkm_nvsw_new, { -1, -1, NVIF_IOCTL_NEW_V0_SW_GF100 } }, 146 {} 147 } 148 }; 149 150 struct nvkm_oclass * 151 gf100_sw_oclass = &(struct nv50_sw_oclass) { 152 .base.handle = NV_ENGINE(SW, 0xc0), 153 .base.ofuncs = &(struct nvkm_ofuncs) { 154 .ctor = nv50_sw_ctor, 155 .dtor = _nvkm_sw_dtor, 156 .init = _nvkm_sw_init, 157 .fini = _nvkm_sw_fini, 158 }, 159 .func = &gf100_sw_func, 160 }.base; 161