1c39f472eSBen Skeggs /* 2c39f472eSBen Skeggs * Copyright 2012 Red Hat Inc. 3c39f472eSBen Skeggs * 4c39f472eSBen Skeggs * Permission is hereby granted, free of charge, to any person obtaining a 5c39f472eSBen Skeggs * copy of this software and associated documentation files (the "Software"), 6c39f472eSBen Skeggs * to deal in the Software without restriction, including without limitation 7c39f472eSBen Skeggs * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8c39f472eSBen Skeggs * and/or sell copies of the Software, and to permit persons to whom the 9c39f472eSBen Skeggs * Software is furnished to do so, subject to the following conditions: 10c39f472eSBen Skeggs * 11c39f472eSBen Skeggs * The above copyright notice and this permission notice shall be included in 12c39f472eSBen Skeggs * all copies or substantial portions of the Software. 13c39f472eSBen Skeggs * 14c39f472eSBen Skeggs * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15c39f472eSBen Skeggs * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16c39f472eSBen Skeggs * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 17c39f472eSBen Skeggs * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 18c39f472eSBen Skeggs * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 19c39f472eSBen Skeggs * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 20c39f472eSBen Skeggs * OTHER DEALINGS IN THE SOFTWARE. 21c39f472eSBen Skeggs * 22c39f472eSBen Skeggs * Authors: Ben Skeggs 23c39f472eSBen Skeggs */ 249a65a38cSBen Skeggs #include "priv.h" 259a65a38cSBen Skeggs #include "chan.h" 26c39f472eSBen Skeggs 2713de7f46SBen Skeggs #include <core/gpuobj.h> 285e721ad1SBen Skeggs #include <subdev/mc.h> 2905c7145dSBen Skeggs 30eb47db4fSBen Skeggs #include <nvif/cl0080.h> 3105c7145dSBen Skeggs #include <nvif/unpack.h> 32c39f472eSBen Skeggs 33344c2d42SBen Skeggs void 3421e6de29SBen Skeggs nvkm_fifo_recover_chan(struct nvkm_fifo *fifo, int chid) 3521e6de29SBen Skeggs { 3621e6de29SBen Skeggs unsigned long flags; 3721e6de29SBen Skeggs if (WARN_ON(!fifo->func->recover_chan)) 3821e6de29SBen Skeggs return; 3921e6de29SBen Skeggs spin_lock_irqsave(&fifo->lock, flags); 4021e6de29SBen Skeggs fifo->func->recover_chan(fifo, chid); 4121e6de29SBen Skeggs spin_unlock_irqrestore(&fifo->lock, flags); 4221e6de29SBen Skeggs } 4321e6de29SBen Skeggs 4421e6de29SBen Skeggs void 4513de7f46SBen Skeggs nvkm_fifo_pause(struct nvkm_fifo *fifo, unsigned long *flags) 4613de7f46SBen Skeggs { 4713de7f46SBen Skeggs return fifo->func->pause(fifo, flags); 4813de7f46SBen Skeggs } 4913de7f46SBen Skeggs 5013de7f46SBen Skeggs void 5113de7f46SBen Skeggs nvkm_fifo_start(struct nvkm_fifo *fifo, unsigned long *flags) 5213de7f46SBen Skeggs { 5313de7f46SBen Skeggs return fifo->func->start(fifo, flags); 5413de7f46SBen Skeggs } 5513de7f46SBen Skeggs 5613de7f46SBen Skeggs void 57ddc669e2SBen Skeggs nvkm_fifo_fault(struct nvkm_fifo *fifo, struct nvkm_fault_data *info) 58ddc669e2SBen Skeggs { 59*9be9c606SBen Skeggs return fifo->func->mmu_fault->recover(fifo, info); 60ddc669e2SBen Skeggs } 61ddc669e2SBen Skeggs 62ddc669e2SBen Skeggs void 63344c2d42SBen Skeggs nvkm_fifo_chan_put(struct nvkm_fifo *fifo, unsigned long flags, 64344c2d42SBen Skeggs struct nvkm_fifo_chan **pchan) 65344c2d42SBen Skeggs { 66344c2d42SBen Skeggs struct nvkm_fifo_chan *chan = *pchan; 67344c2d42SBen Skeggs if (likely(chan)) { 68344c2d42SBen Skeggs *pchan = NULL; 69344c2d42SBen Skeggs spin_unlock_irqrestore(&fifo->lock, flags); 70344c2d42SBen Skeggs } 71344c2d42SBen Skeggs } 72344c2d42SBen Skeggs 73344c2d42SBen Skeggs struct nvkm_fifo_chan * 743534821dSBen Skeggs nvkm_fifo_chan_inst_locked(struct nvkm_fifo *fifo, u64 inst) 753534821dSBen Skeggs { 763534821dSBen Skeggs struct nvkm_fifo_chan *chan; 773534821dSBen Skeggs list_for_each_entry(chan, &fifo->chan, head) { 783534821dSBen Skeggs if (chan->inst->addr == inst) { 793534821dSBen Skeggs list_del(&chan->head); 803534821dSBen Skeggs list_add(&chan->head, &fifo->chan); 813534821dSBen Skeggs return chan; 823534821dSBen Skeggs } 833534821dSBen Skeggs } 843534821dSBen Skeggs return NULL; 853534821dSBen Skeggs } 863534821dSBen Skeggs 873534821dSBen Skeggs struct nvkm_fifo_chan * 88344c2d42SBen Skeggs nvkm_fifo_chan_inst(struct nvkm_fifo *fifo, u64 inst, unsigned long *rflags) 89344c2d42SBen Skeggs { 908f0649b5SBen Skeggs struct nvkm_fifo_chan *chan; 91344c2d42SBen Skeggs unsigned long flags; 92344c2d42SBen Skeggs spin_lock_irqsave(&fifo->lock, flags); 933534821dSBen Skeggs if ((chan = nvkm_fifo_chan_inst_locked(fifo, inst))) { 94344c2d42SBen Skeggs *rflags = flags; 95344c2d42SBen Skeggs return chan; 96344c2d42SBen Skeggs } 97344c2d42SBen Skeggs spin_unlock_irqrestore(&fifo->lock, flags); 98344c2d42SBen Skeggs return NULL; 99344c2d42SBen Skeggs } 100344c2d42SBen Skeggs 101344c2d42SBen Skeggs struct nvkm_fifo_chan * 102344c2d42SBen Skeggs nvkm_fifo_chan_chid(struct nvkm_fifo *fifo, int chid, unsigned long *rflags) 103344c2d42SBen Skeggs { 1048f0649b5SBen Skeggs struct nvkm_fifo_chan *chan; 105344c2d42SBen Skeggs unsigned long flags; 106344c2d42SBen Skeggs spin_lock_irqsave(&fifo->lock, flags); 1078f0649b5SBen Skeggs list_for_each_entry(chan, &fifo->chan, head) { 1088f0649b5SBen Skeggs if (chan->chid == chid) { 1098f0649b5SBen Skeggs list_del(&chan->head); 1108f0649b5SBen Skeggs list_add(&chan->head, &fifo->chan); 111344c2d42SBen Skeggs *rflags = flags; 1128f0649b5SBen Skeggs return chan; 1138f0649b5SBen Skeggs } 114344c2d42SBen Skeggs } 115344c2d42SBen Skeggs spin_unlock_irqrestore(&fifo->lock, flags); 116344c2d42SBen Skeggs return NULL; 117344c2d42SBen Skeggs } 118344c2d42SBen Skeggs 119ff9f29abSBen Skeggs void 120ff9f29abSBen Skeggs nvkm_fifo_kevent(struct nvkm_fifo *fifo, int chid) 121ff9f29abSBen Skeggs { 12299d0701aSBen Skeggs nvkm_event_ntfy(&fifo->kevent, chid, NVKM_FIFO_EVENT_KILLED); 123ff9f29abSBen Skeggs } 124ff9f29abSBen Skeggs 125ff9f29abSBen Skeggs static const struct nvkm_event_func 126ff9f29abSBen Skeggs nvkm_fifo_kevent_func = { 127ff9f29abSBen Skeggs }; 128ff9f29abSBen Skeggs 12913de7f46SBen Skeggs static void 13013de7f46SBen Skeggs nvkm_fifo_uevent_fini(struct nvkm_event *event, int type, int index) 13113de7f46SBen Skeggs { 13213de7f46SBen Skeggs struct nvkm_fifo *fifo = container_of(event, typeof(*fifo), uevent); 13313de7f46SBen Skeggs fifo->func->uevent_fini(fifo); 13413de7f46SBen Skeggs } 13513de7f46SBen Skeggs 13613de7f46SBen Skeggs static void 13713de7f46SBen Skeggs nvkm_fifo_uevent_init(struct nvkm_event *event, int type, int index) 13813de7f46SBen Skeggs { 13913de7f46SBen Skeggs struct nvkm_fifo *fifo = container_of(event, typeof(*fifo), uevent); 14013de7f46SBen Skeggs fifo->func->uevent_init(fifo); 14113de7f46SBen Skeggs } 14213de7f46SBen Skeggs 14313de7f46SBen Skeggs static const struct nvkm_event_func 14413de7f46SBen Skeggs nvkm_fifo_uevent_func = { 14513de7f46SBen Skeggs .init = nvkm_fifo_uevent_init, 14613de7f46SBen Skeggs .fini = nvkm_fifo_uevent_fini, 14713de7f46SBen Skeggs }; 14813de7f46SBen Skeggs 1499a65a38cSBen Skeggs void 1509a65a38cSBen Skeggs nvkm_fifo_uevent(struct nvkm_fifo *fifo) 1519a65a38cSBen Skeggs { 15299d0701aSBen Skeggs nvkm_event_ntfy(&fifo->uevent, 0, NVKM_FIFO_EVENT_NON_STALL_INTR); 1539a65a38cSBen Skeggs } 1549a65a38cSBen Skeggs 1558f0649b5SBen Skeggs static int 156f5e45689SBen Skeggs nvkm_fifo_class_new(struct nvkm_device *device, const struct nvkm_oclass *oclass, 157f5e45689SBen Skeggs void *argv, u32 argc, struct nvkm_object **pobject) 158f9360c3aSBen Skeggs { 159f9360c3aSBen Skeggs struct nvkm_fifo *fifo = nvkm_fifo(oclass->engine); 160f9360c3aSBen Skeggs 161f5e45689SBen Skeggs if (oclass->engn == &fifo->func->chan.user) 162f5e45689SBen Skeggs return nvkm_uchan_new(fifo, NULL, oclass, argv, argc, pobject); 163f9360c3aSBen Skeggs 164f5e45689SBen Skeggs WARN_ON(1); 165f5e45689SBen Skeggs return -ENOSYS; 1668f0649b5SBen Skeggs } 1678f0649b5SBen Skeggs 1688f0649b5SBen Skeggs static const struct nvkm_device_oclass 1698f0649b5SBen Skeggs nvkm_fifo_class = { 1708f0649b5SBen Skeggs .ctor = nvkm_fifo_class_new, 1718f0649b5SBen Skeggs }; 1728f0649b5SBen Skeggs 1738f0649b5SBen Skeggs static int 174f5e45689SBen Skeggs nvkm_fifo_class_get(struct nvkm_oclass *oclass, int index, const struct nvkm_device_oclass **class) 1758f0649b5SBen Skeggs { 1768f0649b5SBen Skeggs struct nvkm_fifo *fifo = nvkm_fifo(oclass->engine); 177f5e45689SBen Skeggs const struct nvkm_fifo_func_chan *chan = &fifo->func->chan; 1788f0649b5SBen Skeggs int c = 0; 1798f0649b5SBen Skeggs 180f5e45689SBen Skeggs /* *_CHANNEL_DMA, *_CHANNEL_GPFIFO_* */ 181f5e45689SBen Skeggs if (chan->user.oclass) { 1828f0649b5SBen Skeggs if (c++ == index) { 183f5e45689SBen Skeggs oclass->base = chan->user; 184f5e45689SBen Skeggs oclass->engn = &fifo->func->chan.user; 1858f0649b5SBen Skeggs *class = &nvkm_fifo_class; 1868f0649b5SBen Skeggs return 0; 1878f0649b5SBen Skeggs } 1888f0649b5SBen Skeggs } 1898f0649b5SBen Skeggs 1908f0649b5SBen Skeggs return c; 1918f0649b5SBen Skeggs } 1928f0649b5SBen Skeggs 19313de7f46SBen Skeggs static void 19413de7f46SBen Skeggs nvkm_fifo_intr(struct nvkm_engine *engine) 195c39f472eSBen Skeggs { 19613de7f46SBen Skeggs struct nvkm_fifo *fifo = nvkm_fifo(engine); 19713de7f46SBen Skeggs fifo->func->intr(fifo); 19813de7f46SBen Skeggs } 19913de7f46SBen Skeggs 20013de7f46SBen Skeggs static int 20113de7f46SBen Skeggs nvkm_fifo_fini(struct nvkm_engine *engine, bool suspend) 20213de7f46SBen Skeggs { 20313de7f46SBen Skeggs struct nvkm_fifo *fifo = nvkm_fifo(engine); 20413de7f46SBen Skeggs if (fifo->func->fini) 20513de7f46SBen Skeggs fifo->func->fini(fifo); 20613de7f46SBen Skeggs return 0; 20713de7f46SBen Skeggs } 20813de7f46SBen Skeggs 20913de7f46SBen Skeggs static int 210fd67738aSBen Skeggs nvkm_fifo_init(struct nvkm_engine *engine) 211fd67738aSBen Skeggs { 212fd67738aSBen Skeggs struct nvkm_fifo *fifo = nvkm_fifo(engine); 213fd67738aSBen Skeggs fifo->func->init(fifo); 214fd67738aSBen Skeggs return 0; 215fd67738aSBen Skeggs } 216fd67738aSBen Skeggs 217fd67738aSBen Skeggs static int 218eb47db4fSBen Skeggs nvkm_fifo_info(struct nvkm_engine *engine, u64 mthd, u64 *data) 219eb47db4fSBen Skeggs { 220eb47db4fSBen Skeggs struct nvkm_fifo *fifo = nvkm_fifo(engine); 221eb47db4fSBen Skeggs switch (mthd) { 222f8fabd31SBen Skeggs case NV_DEVICE_HOST_CHANNELS: *data = fifo->nr; return 0; 223eb47db4fSBen Skeggs default: 224cc362050SBen Skeggs if (fifo->func->info) 225cc362050SBen Skeggs return fifo->func->info(fifo, mthd, data); 226eb47db4fSBen Skeggs break; 227eb47db4fSBen Skeggs } 228eb47db4fSBen Skeggs return -ENOSYS; 229eb47db4fSBen Skeggs } 230eb47db4fSBen Skeggs 231eb47db4fSBen Skeggs static int 23213de7f46SBen Skeggs nvkm_fifo_oneinit(struct nvkm_engine *engine) 23313de7f46SBen Skeggs { 23413de7f46SBen Skeggs struct nvkm_fifo *fifo = nvkm_fifo(engine); 23513de7f46SBen Skeggs if (fifo->func->oneinit) 23613de7f46SBen Skeggs return fifo->func->oneinit(fifo); 23713de7f46SBen Skeggs return 0; 23813de7f46SBen Skeggs } 23913de7f46SBen Skeggs 2405e721ad1SBen Skeggs static void 2415e721ad1SBen Skeggs nvkm_fifo_preinit(struct nvkm_engine *engine) 2425e721ad1SBen Skeggs { 2436997ea13SBen Skeggs nvkm_mc_reset(engine->subdev.device, NVKM_ENGINE_FIFO, 0); 2445e721ad1SBen Skeggs } 2455e721ad1SBen Skeggs 24613de7f46SBen Skeggs static void * 24713de7f46SBen Skeggs nvkm_fifo_dtor(struct nvkm_engine *engine) 24813de7f46SBen Skeggs { 24913de7f46SBen Skeggs struct nvkm_fifo *fifo = nvkm_fifo(engine); 25013de7f46SBen Skeggs void *data = fifo; 25113de7f46SBen Skeggs if (fifo->func->dtor) 25213de7f46SBen Skeggs data = fifo->func->dtor(fifo); 253ff9f29abSBen Skeggs nvkm_event_fini(&fifo->kevent); 25413de7f46SBen Skeggs nvkm_event_fini(&fifo->uevent); 255a6419360SBen Skeggs mutex_destroy(&fifo->mutex); 25613de7f46SBen Skeggs return data; 257c39f472eSBen Skeggs } 258c39f472eSBen Skeggs 2598f0649b5SBen Skeggs static const struct nvkm_engine_func 26013de7f46SBen Skeggs nvkm_fifo = { 26113de7f46SBen Skeggs .dtor = nvkm_fifo_dtor, 2625e721ad1SBen Skeggs .preinit = nvkm_fifo_preinit, 26313de7f46SBen Skeggs .oneinit = nvkm_fifo_oneinit, 264eb47db4fSBen Skeggs .info = nvkm_fifo_info, 26513de7f46SBen Skeggs .init = nvkm_fifo_init, 26613de7f46SBen Skeggs .fini = nvkm_fifo_fini, 26713de7f46SBen Skeggs .intr = nvkm_fifo_intr, 2688f0649b5SBen Skeggs .base.sclass = nvkm_fifo_class_get, 2698f0649b5SBen Skeggs }; 2708f0649b5SBen Skeggs 271c39f472eSBen Skeggs int 27213de7f46SBen Skeggs nvkm_fifo_ctor(const struct nvkm_fifo_func *func, struct nvkm_device *device, 2738c18138cSBen Skeggs enum nvkm_subdev_type type, int inst, struct nvkm_fifo *fifo) 274c39f472eSBen Skeggs { 2758c18138cSBen Skeggs int ret, nr; 276c39f472eSBen Skeggs 27713de7f46SBen Skeggs fifo->func = func; 27813de7f46SBen Skeggs spin_lock_init(&fifo->lock); 279a6419360SBen Skeggs mutex_init(&fifo->mutex); 2808f0649b5SBen Skeggs 2818c18138cSBen Skeggs ret = nvkm_engine_ctor(&nvkm_fifo, device, type, inst, true, &fifo->engine); 2828c18138cSBen Skeggs if (ret) 2838c18138cSBen Skeggs return ret; 2848c18138cSBen Skeggs 2858c18138cSBen Skeggs INIT_LIST_HEAD(&fifo->chan); 2868c18138cSBen Skeggs 287*9be9c606SBen Skeggs nr = func->chid_nr(fifo); 28813de7f46SBen Skeggs if (WARN_ON(fifo->nr > NVKM_FIFO_CHID_NR)) 2898f0649b5SBen Skeggs fifo->nr = NVKM_FIFO_CHID_NR; 29013de7f46SBen Skeggs else 29113de7f46SBen Skeggs fifo->nr = nr; 29213de7f46SBen Skeggs bitmap_clear(fifo->mask, 0, fifo->nr); 293c39f472eSBen Skeggs 29413de7f46SBen Skeggs if (func->uevent_init) { 295f43e47c0SBen Skeggs ret = nvkm_event_init(&nvkm_fifo_uevent_func, &fifo->engine.subdev, 1, 1, 29613de7f46SBen Skeggs &fifo->uevent); 29713de7f46SBen Skeggs if (ret) 29813de7f46SBen Skeggs return ret; 29913de7f46SBen Skeggs } 30013de7f46SBen Skeggs 301f43e47c0SBen Skeggs return nvkm_event_init(&nvkm_fifo_kevent_func, &fifo->engine.subdev, 1, nr, &fifo->kevent); 302c39f472eSBen Skeggs } 303