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 #define nv44_mpeg(p) container_of((p), struct nv44_mpeg, engine) 25 #include "priv.h" 26 27 #include <core/client.h> 28 #include <core/gpuobj.h> 29 #include <engine/fifo.h> 30 31 #include <nvif/class.h> 32 33 struct nv44_mpeg { 34 struct nvkm_engine engine; 35 struct list_head chan; 36 }; 37 38 /******************************************************************************* 39 * PMPEG context 40 ******************************************************************************/ 41 #define nv44_mpeg_chan(p) container_of((p), struct nv44_mpeg_chan, object) 42 43 struct nv44_mpeg_chan { 44 struct nvkm_object object; 45 struct nv44_mpeg *mpeg; 46 struct nvkm_fifo_chan *fifo; 47 struct list_head head; 48 u32 inst; 49 }; 50 51 static int 52 nv44_mpeg_chan_bind(struct nvkm_object *object, struct nvkm_gpuobj *parent, 53 int align, struct nvkm_gpuobj **pgpuobj) 54 { 55 struct nv44_mpeg_chan *chan = nv44_mpeg_chan(object); 56 int ret = nvkm_gpuobj_new(chan->object.engine->subdev.device, 264 * 4, 57 align, true, parent, pgpuobj); 58 if (ret == 0) { 59 chan->inst = (*pgpuobj)->addr; 60 nvkm_kmap(*pgpuobj); 61 nvkm_wo32(*pgpuobj, 0x78, 0x02001ec1); 62 nvkm_done(*pgpuobj); 63 } 64 return ret; 65 } 66 67 static int 68 nv44_mpeg_chan_fini(struct nvkm_object *object, bool suspend) 69 { 70 71 struct nv44_mpeg_chan *chan = nv44_mpeg_chan(object); 72 struct nv44_mpeg *mpeg = chan->mpeg; 73 struct nvkm_device *device = mpeg->engine.subdev.device; 74 u32 inst = 0x80000000 | (chan->inst >> 4); 75 76 nvkm_mask(device, 0x00b32c, 0x00000001, 0x00000000); 77 if (nvkm_rd32(device, 0x00b318) == inst) 78 nvkm_mask(device, 0x00b318, 0x80000000, 0x00000000); 79 nvkm_mask(device, 0x00b32c, 0x00000001, 0x00000001); 80 return 0; 81 } 82 83 static void * 84 nv44_mpeg_chan_dtor(struct nvkm_object *object) 85 { 86 struct nv44_mpeg_chan *chan = nv44_mpeg_chan(object); 87 struct nv44_mpeg *mpeg = chan->mpeg; 88 unsigned long flags; 89 spin_lock_irqsave(&mpeg->engine.lock, flags); 90 list_del(&chan->head); 91 spin_unlock_irqrestore(&mpeg->engine.lock, flags); 92 return chan; 93 } 94 95 static const struct nvkm_object_func 96 nv44_mpeg_chan = { 97 .dtor = nv44_mpeg_chan_dtor, 98 .fini = nv44_mpeg_chan_fini, 99 .bind = nv44_mpeg_chan_bind, 100 }; 101 102 static int 103 nv44_mpeg_chan_new(struct nvkm_fifo_chan *fifoch, 104 const struct nvkm_oclass *oclass, 105 struct nvkm_object **pobject) 106 { 107 struct nv44_mpeg *mpeg = nv44_mpeg(oclass->engine); 108 struct nv44_mpeg_chan *chan; 109 unsigned long flags; 110 111 if (!(chan = kzalloc(sizeof(*chan), GFP_KERNEL))) 112 return -ENOMEM; 113 nvkm_object_ctor(&nv44_mpeg_chan, oclass, &chan->object); 114 chan->mpeg = mpeg; 115 chan->fifo = fifoch; 116 *pobject = &chan->object; 117 118 spin_lock_irqsave(&mpeg->engine.lock, flags); 119 list_add(&chan->head, &mpeg->chan); 120 spin_unlock_irqrestore(&mpeg->engine.lock, flags); 121 return 0; 122 } 123 124 /******************************************************************************* 125 * PMPEG engine/subdev functions 126 ******************************************************************************/ 127 128 static bool 129 nv44_mpeg_mthd(struct nvkm_device *device, u32 mthd, u32 data) 130 { 131 switch (mthd) { 132 case 0x190: 133 case 0x1a0: 134 case 0x1b0: 135 return nv40_mpeg_mthd_dma(device, mthd, data); 136 default: 137 break; 138 } 139 return false; 140 } 141 142 static void 143 nv44_mpeg_intr(struct nvkm_engine *engine) 144 { 145 struct nv44_mpeg *mpeg = nv44_mpeg(engine); 146 struct nvkm_subdev *subdev = &mpeg->engine.subdev; 147 struct nvkm_device *device = subdev->device; 148 struct nv44_mpeg_chan *temp, *chan = NULL; 149 unsigned long flags; 150 u32 inst = nvkm_rd32(device, 0x00b318) & 0x000fffff; 151 u32 stat = nvkm_rd32(device, 0x00b100); 152 u32 type = nvkm_rd32(device, 0x00b230); 153 u32 mthd = nvkm_rd32(device, 0x00b234); 154 u32 data = nvkm_rd32(device, 0x00b238); 155 u32 show = stat; 156 157 spin_lock_irqsave(&mpeg->engine.lock, flags); 158 list_for_each_entry(temp, &mpeg->chan, head) { 159 if (temp->inst >> 4 == inst) { 160 chan = temp; 161 list_del(&chan->head); 162 list_add(&chan->head, &mpeg->chan); 163 break; 164 } 165 } 166 167 if (stat & 0x01000000) { 168 /* happens on initial binding of the object */ 169 if (type == 0x00000020 && mthd == 0x0000) { 170 nvkm_mask(device, 0x00b308, 0x00000000, 0x00000000); 171 show &= ~0x01000000; 172 } 173 174 if (type == 0x00000010) { 175 if (nv44_mpeg_mthd(subdev->device, mthd, data)) 176 show &= ~0x01000000; 177 } 178 } 179 180 nvkm_wr32(device, 0x00b100, stat); 181 nvkm_wr32(device, 0x00b230, 0x00000001); 182 183 if (show) { 184 nvkm_error(subdev, "ch %d [%08x %s] %08x %08x %08x %08x\n", 185 chan ? chan->fifo->id : -1, inst << 4, 186 chan ? chan->fifo->name : "unknown", 187 stat, type, mthd, data); 188 } 189 190 spin_unlock_irqrestore(&mpeg->engine.lock, flags); 191 } 192 193 static const struct nvkm_engine_func 194 nv44_mpeg = { 195 .init = nv31_mpeg_init, 196 .intr = nv44_mpeg_intr, 197 .tile = nv31_mpeg_tile, 198 .fifo.cclass = nv44_mpeg_chan_new, 199 .sclass = { 200 { -1, -1, NV31_MPEG, &nv31_mpeg_object }, 201 {} 202 } 203 }; 204 205 int 206 nv44_mpeg_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, 207 struct nvkm_engine **pmpeg) 208 { 209 struct nv44_mpeg *mpeg; 210 211 if (!(mpeg = kzalloc(sizeof(*mpeg), GFP_KERNEL))) 212 return -ENOMEM; 213 INIT_LIST_HEAD(&mpeg->chan); 214 *pmpeg = &mpeg->engine; 215 216 return nvkm_engine_ctor(&nv44_mpeg, device, type, inst, true, &mpeg->engine); 217 } 218