gpfifog84.c (3327B)
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 "channv50.h" 25 26#include <core/client.h> 27#include <core/ramht.h> 28 29#include <nvif/class.h> 30#include <nvif/cl826f.h> 31#include <nvif/unpack.h> 32 33static int 34g84_fifo_gpfifo_new(struct nvkm_fifo *base, const struct nvkm_oclass *oclass, 35 void *data, u32 size, struct nvkm_object **pobject) 36{ 37 struct nvkm_object *parent = oclass->parent; 38 union { 39 struct g82_channel_gpfifo_v0 v0; 40 } *args = data; 41 struct nv50_fifo *fifo = nv50_fifo(base); 42 struct nv50_fifo_chan *chan; 43 u64 ioffset, ilength; 44 int ret = -ENOSYS; 45 46 nvif_ioctl(parent, "create channel gpfifo size %d\n", size); 47 if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, false))) { 48 nvif_ioctl(parent, "create channel gpfifo vers %d vmm %llx " 49 "pushbuf %llx ioffset %016llx " 50 "ilength %08x\n", 51 args->v0.version, args->v0.vmm, args->v0.pushbuf, 52 args->v0.ioffset, args->v0.ilength); 53 if (!args->v0.pushbuf) 54 return -EINVAL; 55 } else 56 return ret; 57 58 if (!(chan = kzalloc(sizeof(*chan), GFP_KERNEL))) 59 return -ENOMEM; 60 *pobject = &chan->base.object; 61 62 ret = g84_fifo_chan_ctor(fifo, args->v0.vmm, args->v0.pushbuf, 63 oclass, chan); 64 if (ret) 65 return ret; 66 67 args->v0.chid = chan->base.chid; 68 ioffset = args->v0.ioffset; 69 ilength = order_base_2(args->v0.ilength / 8); 70 71 nvkm_kmap(chan->ramfc); 72 nvkm_wo32(chan->ramfc, 0x3c, 0x403f6078); 73 nvkm_wo32(chan->ramfc, 0x44, 0x01003fff); 74 nvkm_wo32(chan->ramfc, 0x48, chan->base.push->node->offset >> 4); 75 nvkm_wo32(chan->ramfc, 0x50, lower_32_bits(ioffset)); 76 nvkm_wo32(chan->ramfc, 0x54, upper_32_bits(ioffset) | (ilength << 16)); 77 nvkm_wo32(chan->ramfc, 0x60, 0x7fffffff); 78 nvkm_wo32(chan->ramfc, 0x78, 0x00000000); 79 nvkm_wo32(chan->ramfc, 0x7c, 0x30000001); 80 nvkm_wo32(chan->ramfc, 0x80, ((chan->ramht->bits - 9) << 27) | 81 (4 << 24) /* SEARCH_FULL */ | 82 (chan->ramht->gpuobj->node->offset >> 4)); 83 nvkm_wo32(chan->ramfc, 0x88, chan->cache->addr >> 10); 84 nvkm_wo32(chan->ramfc, 0x98, chan->base.inst->addr >> 12); 85 nvkm_done(chan->ramfc); 86 return 0; 87} 88 89const struct nvkm_fifo_chan_oclass 90g84_fifo_gpfifo_oclass = { 91 .base.oclass = G82_CHANNEL_GPFIFO, 92 .base.minver = 0, 93 .base.maxver = 0, 94 .ctor = g84_fifo_gpfifo_new, 95};