cregit-Linux how code gets into the kernel

Release 4.11 drivers/gpu/drm/nouveau/nvkm/engine/fifo/chang84.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 <subdev/mmu.h>
#include <subdev/timer.h>

#include <nvif/cl826e.h>


static int g84_fifo_chan_ntfy(struct nvkm_fifo_chan *chan, u32 type, struct nvkm_event **pevent) { switch (type) { case NV826E_V0_NTFY_NON_STALL_INTERRUPT: *pevent = &chan->fifo->uevent; return 0; default: break; } return -EINVAL; }

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Ben Skeggs48100.00%4100.00%
Total48100.00%4100.00%


static int g84_fifo_chan_engine(struct nvkm_engine *engine) { switch (engine->subdev.index) { case NVKM_ENGINE_GR : return 0; case NVKM_ENGINE_MPEG : case NVKM_ENGINE_MSPPP : return 1; case NVKM_ENGINE_CE0 : return 2; case NVKM_ENGINE_VP : case NVKM_ENGINE_MSPDEC: return 3; case NVKM_ENGINE_CIPHER: case NVKM_ENGINE_SEC : return 4; case NVKM_ENGINE_BSP : case NVKM_ENGINE_MSVLD : return 5; default: WARN_ON(1); return 0; } }

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Ben Skeggs78100.00%3100.00%
Total78100.00%3100.00%


static int g84_fifo_chan_engine_addr(struct nvkm_engine *engine) { switch (engine->subdev.index) { case NVKM_ENGINE_DMAOBJ: case NVKM_ENGINE_SW : return -1; case NVKM_ENGINE_GR : return 0x0020; case NVKM_ENGINE_VP : case NVKM_ENGINE_MSPDEC: return 0x0040; case NVKM_ENGINE_MPEG : case NVKM_ENGINE_MSPPP : return 0x0060; case NVKM_ENGINE_BSP : case NVKM_ENGINE_MSVLD : return 0x0080; case NVKM_ENGINE_CIPHER: case NVKM_ENGINE_SEC : return 0x00a0; case NVKM_ENGINE_CE0 : return 0x00c0; default: WARN_ON(1); return -1; } }

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Ben Skeggs89100.00%3100.00%
Total89100.00%3100.00%


static int g84_fifo_chan_engine_fini(struct nvkm_fifo_chan *base, struct nvkm_engine *engine, bool suspend) { struct nv50_fifo_chan *chan = nv50_fifo_chan(base); struct nv50_fifo *fifo = chan->fifo; struct nvkm_subdev *subdev = &fifo->base.engine.subdev; struct nvkm_device *device = subdev->device; u32 engn, save; int offset; bool done; offset = g84_fifo_chan_engine_addr(engine); if (offset < 0) return 0; engn = g84_fifo_chan_engine(engine); save = nvkm_mask(device, 0x002520, 0x0000003f, 1 << engn); nvkm_wr32(device, 0x0032fc, chan->base.inst->addr >> 12); done = nvkm_msec(device, 2000, if (nvkm_rd32(device, 0x0032fc) != 0xffffffff) break; ) >= 0; nvkm_wr32(device, 0x002520, save); if (!done) { nvkm_error(subdev, "channel %d [%s] unload timeout\n", chan->base.chid, chan->base.object.client->name); if (suspend) return -EBUSY; } nvkm_kmap(chan->eng); nvkm_wo32(chan->eng, offset + 0x00, 0x00000000); nvkm_wo32(chan->eng, offset + 0x04, 0x00000000); nvkm_wo32(chan->eng, offset + 0x08, 0x00000000); nvkm_wo32(chan->eng, offset + 0x0c, 0x00000000); nvkm_wo32(chan->eng, offset + 0x10, 0x00000000); nvkm_wo32(chan->eng, offset + 0x14, 0x00000000); nvkm_done(chan->eng); return 0; }

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Ben Skeggs286100.00%2100.00%
Total286100.00%2100.00%


static int g84_fifo_chan_engine_init(struct nvkm_fifo_chan *base, struct nvkm_engine *engine) { struct nv50_fifo_chan *chan = nv50_fifo_chan(base); struct nvkm_gpuobj *engn = chan->engn[engine->subdev.index]; u64 limit, start; int offset; offset = g84_fifo_chan_engine_addr(engine); if (offset < 0) return 0; limit = engn->addr + engn->size - 1; start = engn->addr; nvkm_kmap(chan->eng); nvkm_wo32(chan->eng, offset + 0x00, 0x00190000); nvkm_wo32(chan->eng, offset + 0x04, lower_32_bits(limit)); nvkm_wo32(chan->eng, offset + 0x08, lower_32_bits(start)); nvkm_wo32(chan->eng, offset + 0x0c, upper_32_bits(limit) << 24 | upper_32_bits(start)); nvkm_wo32(chan->eng, offset + 0x10, 0x00000000); nvkm_wo32(chan->eng, offset + 0x14, 0x00000000); nvkm_done(chan->eng); return 0; }

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Ben Skeggs19499.49%266.67%
Baoyou Xie10.51%133.33%
Total195100.00%3100.00%


static int g84_fifo_chan_engine_ctor(struct nvkm_fifo_chan *base, struct nvkm_engine *engine, struct nvkm_object *object) { struct nv50_fifo_chan *chan = nv50_fifo_chan(base); int engn = engine->subdev.index; if (g84_fifo_chan_engine_addr(engine) < 0) return 0; return nvkm_object_bind(object, NULL, 0, &chan->engn[engn]); }

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Ben Skeggs70100.00%2100.00%
Total70100.00%2100.00%


static int g84_fifo_chan_object_ctor(struct nvkm_fifo_chan *base, struct nvkm_object *object) { struct nv50_fifo_chan *chan = nv50_fifo_chan(base); u32 handle = object->handle; u32 context; switch (object->engine->subdev.index) { case NVKM_ENGINE_DMAOBJ: case NVKM_ENGINE_SW : context = 0x00000000; break; case NVKM_ENGINE_GR : context = 0x00100000; break; case NVKM_ENGINE_MPEG : case NVKM_ENGINE_MSPPP : context = 0x00200000; break; case NVKM_ENGINE_ME : case NVKM_ENGINE_CE0 : context = 0x00300000; break; case NVKM_ENGINE_VP : case NVKM_ENGINE_MSPDEC: context = 0x00400000; break; case NVKM_ENGINE_CIPHER: case NVKM_ENGINE_SEC : case NVKM_ENGINE_VIC : context = 0x00500000; break; case NVKM_ENGINE_BSP : case NVKM_ENGINE_MSVLD : context = 0x00600000; break; default: WARN_ON(1); return -EINVAL; } return nvkm_ramht_insert(chan->ramht, object, 0, 4, handle, context); }

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Ben Skeggs15299.35%375.00%
Baoyou Xie10.65%125.00%
Total153100.00%4100.00%


static void g84_fifo_chan_init(struct nvkm_fifo_chan *base) { struct nv50_fifo_chan *chan = nv50_fifo_chan(base); struct nv50_fifo *fifo = chan->fifo; struct nvkm_device *device = fifo->base.engine.subdev.device; u64 addr = chan->ramfc->addr >> 8; u32 chid = chan->base.chid; nvkm_wr32(device, 0x002600 + (chid * 4), 0x80000000 | addr); nv50_fifo_runlist_update(fifo); }

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

static const struct nvkm_fifo_chan_func g84_fifo_chan_func = { .dtor = nv50_fifo_chan_dtor, .init = g84_fifo_chan_init, .fini = nv50_fifo_chan_fini, .ntfy = g84_fifo_chan_ntfy, .engine_ctor = g84_fifo_chan_engine_ctor, .engine_dtor = nv50_fifo_chan_engine_dtor, .engine_init = g84_fifo_chan_engine_init, .engine_fini = g84_fifo_chan_engine_fini, .object_ctor = g84_fifo_chan_object_ctor, .object_dtor = nv50_fifo_chan_object_dtor, };
int g84_fifo_chan_ctor(struct nv50_fifo *fifo, u64 vm, u64 push, const struct nvkm_oclass *oclass, struct nv50_fifo_chan *chan) { struct nvkm_device *device = fifo->base.engine.subdev.device; int ret; ret = nvkm_fifo_chan_ctor(&g84_fifo_chan_func, &fifo->base, 0x10000, 0x1000, false, vm, push, (1ULL << NVKM_ENGINE_BSP) | (1ULL << NVKM_ENGINE_CE0) | (1ULL << NVKM_ENGINE_CIPHER) | (1ULL << NVKM_ENGINE_DMAOBJ) | (1ULL << NVKM_ENGINE_GR) | (1ULL << NVKM_ENGINE_ME) | (1ULL << NVKM_ENGINE_MPEG) | (1ULL << NVKM_ENGINE_MSPDEC) | (1ULL << NVKM_ENGINE_MSPPP) | (1ULL << NVKM_ENGINE_MSVLD) | (1ULL << NVKM_ENGINE_SEC) | (1ULL << NVKM_ENGINE_SW) | (1ULL << NVKM_ENGINE_VIC) | (1ULL << NVKM_ENGINE_VP), 0, 0xc00000, 0x2000, oclass, &chan->base); chan->fifo = fifo; if (ret) return ret; ret = nvkm_gpuobj_new(device, 0x0200, 0, true, chan->base.inst, &chan->eng); if (ret) return ret; ret = nvkm_gpuobj_new(device, 0x4000, 0, false, chan->base.inst, &chan->pgd); if (ret) return ret; ret = nvkm_gpuobj_new(device, 0x1000, 0x400, true, chan->base.inst, &chan->cache); if (ret) return ret; ret = nvkm_gpuobj_new(device, 0x100, 0x100, true, chan->base.inst, &chan->ramfc); if (ret) return ret; ret = nvkm_ramht_new(device, 0x8000, 16, chan->base.inst, &chan->ramht); if (ret) return ret; return nvkm_vm_ref(chan->base.vm, &chan->vm, chan->pgd); }

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Ben Skeggs350100.00%3100.00%
Total350100.00%3100.00%


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Ben Skeggs143199.86%685.71%
Baoyou Xie20.14%114.29%
Total1433100.00%7100.00%
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