126 lines
3.3 KiB
C
126 lines
3.3 KiB
C
/*
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* Copyright 2021 Red Hat Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*/
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#define nvkm_ucgrp(p) container_of((p), struct nvkm_ucgrp, object)
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#include "priv.h"
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#include "cgrp.h"
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#include "runl.h"
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#include <subdev/mmu.h>
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#include <nvif/if0021.h>
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struct nvkm_ucgrp {
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struct nvkm_object object;
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struct nvkm_cgrp *cgrp;
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};
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static int
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nvkm_ucgrp_chan_new(const struct nvkm_oclass *oclass, void *argv, u32 argc,
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struct nvkm_object **pobject)
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{
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struct nvkm_cgrp *cgrp = nvkm_ucgrp(oclass->parent)->cgrp;
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return nvkm_uchan_new(cgrp->runl->fifo, cgrp, oclass, argv, argc, pobject);
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}
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static int
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nvkm_ucgrp_sclass(struct nvkm_object *object, int index, struct nvkm_oclass *oclass)
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{
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struct nvkm_cgrp *cgrp = nvkm_ucgrp(object)->cgrp;
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struct nvkm_fifo *fifo = cgrp->runl->fifo;
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const struct nvkm_fifo_func_chan *chan = &fifo->func->chan;
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int c = 0;
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/* *_CHANNEL_GPFIFO_* */
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if (chan->user.oclass) {
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if (c++ == index) {
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oclass->base = chan->user;
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oclass->ctor = nvkm_ucgrp_chan_new;
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return 0;
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}
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}
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return -EINVAL;
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}
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static void *
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nvkm_ucgrp_dtor(struct nvkm_object *object)
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{
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struct nvkm_ucgrp *ucgrp = nvkm_ucgrp(object);
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nvkm_cgrp_unref(&ucgrp->cgrp);
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return ucgrp;
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}
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static const struct nvkm_object_func
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nvkm_ucgrp = {
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.dtor = nvkm_ucgrp_dtor,
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.sclass = nvkm_ucgrp_sclass,
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};
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int
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nvkm_ucgrp_new(struct nvkm_fifo *fifo, const struct nvkm_oclass *oclass, void *argv, u32 argc,
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struct nvkm_object **pobject)
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{
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union nvif_cgrp_args *args = argv;
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struct nvkm_runl *runl;
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struct nvkm_vmm *vmm;
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struct nvkm_ucgrp *ucgrp;
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int ret;
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if (argc < sizeof(args->v0) || args->v0.version != 0)
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return -ENOSYS;
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argc -= sizeof(args->v0);
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if (args->v0.namelen != argc)
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return -EINVAL;
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/* Lookup objects referenced in args. */
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runl = nvkm_runl_get(fifo, args->v0.runlist, 0);
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if (!runl)
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return -EINVAL;
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vmm = nvkm_uvmm_search(oclass->client, args->v0.vmm);
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if (IS_ERR(vmm))
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return PTR_ERR(vmm);
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/* Allocate channel group. */
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if (!(ucgrp = kzalloc(sizeof(*ucgrp), GFP_KERNEL))) {
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ret = -ENOMEM;
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goto done;
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}
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nvkm_object_ctor(&nvkm_ucgrp, oclass, &ucgrp->object);
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*pobject = &ucgrp->object;
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ret = nvkm_cgrp_new(runl, args->v0.name, vmm, true, &ucgrp->cgrp);
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if (ret)
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goto done;
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/* Return channel group info to caller. */
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args->v0.cgid = ucgrp->cgrp->id;
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done:
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nvkm_vmm_unref(&vmm);
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return ret;
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}
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