cregit-Linux how code gets into the kernel

Release 4.11 drivers/gpu/drm/nouveau/nvkm/engine/sw/base.c

/*
 * Copyright 2015 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 <bskeggs@redhat.com>
 */
#include "priv.h"
#include "chan.h"

#include <engine/fifo.h>


bool nvkm_sw_mthd(struct nvkm_sw *sw, int chid, int subc, u32 mthd, u32 data) { struct nvkm_sw_chan *chan; bool handled = false; unsigned long flags; spin_lock_irqsave(&sw->engine.lock, flags); list_for_each_entry(chan, &sw->chan, head) { if (chan->fifo->chid == chid) { handled = nvkm_sw_chan_mthd(chan, subc, mthd, data); list_del(&chan->head); list_add(&chan->head, &sw->chan); break; } } spin_unlock_irqrestore(&sw->engine.lock, flags); return handled; }

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Ben Skeggs120100.00%1100.00%
Total120100.00%1100.00%


static int nvkm_sw_oclass_new(const struct nvkm_oclass *oclass, void *data, u32 size, struct nvkm_object **pobject) { struct nvkm_sw_chan *chan = nvkm_sw_chan(oclass->parent); const struct nvkm_sw_chan_sclass *sclass = oclass->engn; return sclass->ctor(chan, oclass, data, size, pobject); }

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Ben Skeggs63100.00%1100.00%
Total63100.00%1100.00%


static int nvkm_sw_oclass_get(struct nvkm_oclass *oclass, int index) { struct nvkm_sw *sw = nvkm_sw(oclass->engine); int c = 0; while (sw->func->sclass[c].ctor) { if (c++ == index) { oclass->engn = &sw->func->sclass[index]; oclass->base = sw->func->sclass[index].base; oclass->base.ctor = nvkm_sw_oclass_new; return index; } } return c; }

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PersonTokensPropCommitsCommitProp
Ben Skeggs98100.00%1100.00%
Total98100.00%1100.00%


static int nvkm_sw_cclass_get(struct nvkm_fifo_chan *fifoch, const struct nvkm_oclass *oclass, struct nvkm_object **pobject) { struct nvkm_sw *sw = nvkm_sw(oclass->engine); return sw->func->chan_new(sw, fifoch, oclass, pobject); }

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Ben Skeggs51100.00%1100.00%
Total51100.00%1100.00%


static void * nvkm_sw_dtor(struct nvkm_engine *engine) { return nvkm_sw(engine); }

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Ben Skeggs18100.00%1100.00%
Total18100.00%1100.00%

static const struct nvkm_engine_func nvkm_sw = { .dtor = nvkm_sw_dtor, .fifo.cclass = nvkm_sw_cclass_get, .fifo.sclass = nvkm_sw_oclass_get, };
int nvkm_sw_new_(const struct nvkm_sw_func *func, struct nvkm_device *device, int index, struct nvkm_sw **psw) { struct nvkm_sw *sw; if (!(sw = *psw = kzalloc(sizeof(*sw), GFP_KERNEL))) return -ENOMEM; INIT_LIST_HEAD(&sw->chan); sw->func = func; return nvkm_engine_ctor(&nvkm_sw, device, index, true, &sw->engine); }

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PersonTokensPropCommitsCommitProp
Ben Skeggs87100.00%2100.00%
Total87100.00%2100.00%


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Ben Skeggs474100.00%3100.00%
Total474100.00%3100.00%
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