cregit-Linux how code gets into the kernel

Release 4.11 drivers/gpu/drm/nouveau/nvkm/engine/mpeg/nv50.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 "priv.h"

#include <core/gpuobj.h>
#include <subdev/timer.h>

#include <nvif/class.h>

/*******************************************************************************
 * PMPEG context
 ******************************************************************************/


static int nv50_mpeg_cclass_bind(struct nvkm_object *object, struct nvkm_gpuobj *parent, int align, struct nvkm_gpuobj **pgpuobj) { int ret = nvkm_gpuobj_new(object->engine->subdev.device, 128 * 4, align, true, parent, pgpuobj); if (ret == 0) { nvkm_kmap(*pgpuobj); nvkm_wo32(*pgpuobj, 0x70, 0x00801ec1); nvkm_wo32(*pgpuobj, 0x7c, 0x0000037c); nvkm_done(*pgpuobj); } return ret; }

Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs94100.00%6100.00%
Total94100.00%6100.00%

const struct nvkm_object_func nv50_mpeg_cclass = { .bind = nv50_mpeg_cclass_bind, }; /******************************************************************************* * PMPEG engine/subdev functions ******************************************************************************/
void nv50_mpeg_intr(struct nvkm_engine *mpeg) { struct nvkm_subdev *subdev = &mpeg->subdev; struct nvkm_device *device = subdev->device; u32 stat = nvkm_rd32(device, 0x00b100); u32 type = nvkm_rd32(device, 0x00b230); u32 mthd = nvkm_rd32(device, 0x00b234); u32 data = nvkm_rd32(device, 0x00b238); u32 show = stat; if (stat & 0x01000000) { /* happens on initial binding of the object */ if (type == 0x00000020 && mthd == 0x0000) { nvkm_wr32(device, 0x00b308, 0x00000100); show &= ~0x01000000; } } if (show) { nvkm_info(subdev, "%08x %08x %08x %08x\n", stat, type, mthd, data); } nvkm_wr32(device, 0x00b100, stat); nvkm_wr32(device, 0x00b230, 0x00000001); }

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PersonTokensPropCommitsCommitProp
Ben Skeggs148100.00%5100.00%
Total148100.00%5100.00%


int nv50_mpeg_init(struct nvkm_engine *mpeg) { struct nvkm_subdev *subdev = &mpeg->subdev; struct nvkm_device *device = subdev->device; nvkm_wr32(device, 0x00b32c, 0x00000000); nvkm_wr32(device, 0x00b314, 0x00000100); nvkm_wr32(device, 0x00b0e0, 0x0000001a); nvkm_wr32(device, 0x00b220, 0x00000044); nvkm_wr32(device, 0x00b300, 0x00801ec1); nvkm_wr32(device, 0x00b390, 0x00000000); nvkm_wr32(device, 0x00b394, 0x00000000); nvkm_wr32(device, 0x00b398, 0x00000000); nvkm_mask(device, 0x00b32c, 0x00000001, 0x00000001); nvkm_wr32(device, 0x00b100, 0xffffffff); nvkm_wr32(device, 0x00b140, 0xffffffff); if (nvkm_msec(device, 2000, if (!(nvkm_rd32(device, 0x00b200) & 0x00000001)) break; ) < 0) { nvkm_error(subdev, "timeout %08x\n", nvkm_rd32(device, 0x00b200)); return -EBUSY; } return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs170100.00%7100.00%
Total170100.00%7100.00%

static const struct nvkm_engine_func nv50_mpeg = { .init = nv50_mpeg_init, .intr = nv50_mpeg_intr, .cclass = &nv50_mpeg_cclass, .sclass = { { -1, -1, NV31_MPEG, &nv31_mpeg_object }, {} } };
int nv50_mpeg_new(struct nvkm_device *device, int index, struct nvkm_engine **pmpeg) { return nvkm_engine_new_(&nv50_mpeg, device, index, true, pmpeg); }

Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs34100.00%1100.00%
Total34100.00%1100.00%


Overall Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs517100.00%10100.00%
Total517100.00%10100.00%
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