cregit-Linux how code gets into the kernel

Release 4.11 drivers/gpu/drm/nouveau/nvkm/engine/fifo/gpfifog84.c

/*
 * Copyright 2012 Red Hat Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 *
 * Authors: Ben Skeggs
 */
#include "channv50.h"

#include <core/client.h>
#include <core/ramht.h>

#include <nvif/class.h>
#include <nvif/cl826f.h>
#include <nvif/unpack.h>


static int g84_fifo_gpfifo_new(struct nvkm_fifo *base, const struct nvkm_oclass *oclass, void *data, u32 size, struct nvkm_object **pobject) { struct nvkm_object *parent = oclass->parent; union { struct g82_channel_gpfifo_v0 v0; } *args = data; struct nv50_fifo *fifo = nv50_fifo(base); struct nv50_fifo_chan *chan; u64 ioffset, ilength; int ret = -ENOSYS; nvif_ioctl(parent, "create channel gpfifo size %d\n", size); if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, false))) { nvif_ioctl(parent, "create channel gpfifo vers %d vm %llx " "pushbuf %llx ioffset %016llx " "ilength %08x\n", args->v0.version, args->v0.vm, args->v0.pushbuf, args->v0.ioffset, args->v0.ilength); if (!args->v0.pushbuf) return -EINVAL; } else return ret; if (!(chan = kzalloc(sizeof(*chan), GFP_KERNEL))) return -ENOMEM; *pobject = &chan->base.object; ret = g84_fifo_chan_ctor(fifo, args->v0.vm, args->v0.pushbuf, oclass, chan); if (ret) return ret; args->v0.chid = chan->base.chid; ioffset = args->v0.ioffset; ilength = order_base_2(args->v0.ilength / 8); nvkm_kmap(chan->ramfc); nvkm_wo32(chan->ramfc, 0x3c, 0x403f6078); nvkm_wo32(chan->ramfc, 0x44, 0x01003fff); nvkm_wo32(chan->ramfc, 0x48, chan->base.push->node->offset >> 4); nvkm_wo32(chan->ramfc, 0x50, lower_32_bits(ioffset)); nvkm_wo32(chan->ramfc, 0x54, upper_32_bits(ioffset) | (ilength << 16)); nvkm_wo32(chan->ramfc, 0x60, 0x7fffffff); nvkm_wo32(chan->ramfc, 0x78, 0x00000000); nvkm_wo32(chan->ramfc, 0x7c, 0x30000001); nvkm_wo32(chan->ramfc, 0x80, ((chan->ramht->bits - 9) << 27) | (4 << 24) /* SEARCH_FULL */ | (chan->ramht->gpuobj->node->offset >> 4)); nvkm_wo32(chan->ramfc, 0x88, chan->cache->addr >> 10); nvkm_wo32(chan->ramfc, 0x98, chan->base.inst->addr >> 12); nvkm_done(chan->ramfc); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs474100.00%4100.00%
Total474100.00%4100.00%

const struct nvkm_fifo_chan_oclass g84_fifo_gpfifo_oclass = { .base.oclass = G82_CHANNEL_GPFIFO, .base.minver = 0, .base.maxver = 0, .ctor = g84_fifo_gpfifo_new, };

Overall Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs526100.00%4100.00%
Total526100.00%4100.00%
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