cregit-Linux how code gets into the kernel

Release 4.11 drivers/gpu/drm/nouveau/nvkm/engine/disp/piocnv50.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 "rootnv50.h"

#include <subdev/timer.h>


static void nv50_disp_pioc_fini(struct nv50_disp_chan *chan) { struct nv50_disp *disp = chan->root->disp; struct nvkm_subdev *subdev = &disp->base.engine.subdev; struct nvkm_device *device = subdev->device; int ctrl = chan->chid.ctrl; int user = chan->chid.user; nvkm_mask(device, 0x610200 + (ctrl * 0x10), 0x00000001, 0x00000000); if (nvkm_msec(device, 2000, if (!(nvkm_rd32(device, 0x610200 + (ctrl * 0x10)) & 0x00030000)) break; ) < 0) { nvkm_error(subdev, "ch %d timeout: %08x\n", user, nvkm_rd32(device, 0x610200 + (ctrl * 0x10))); } }

Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs123100.00%3100.00%
Total123100.00%3100.00%


static int nv50_disp_pioc_init(struct nv50_disp_chan *chan) { struct nv50_disp *disp = chan->root->disp; struct nvkm_subdev *subdev = &disp->base.engine.subdev; struct nvkm_device *device = subdev->device; int ctrl = chan->chid.ctrl; int user = chan->chid.user; nvkm_wr32(device, 0x610200 + (ctrl * 0x10), 0x00002000); if (nvkm_msec(device, 2000, if (!(nvkm_rd32(device, 0x610200 + (ctrl * 0x10)) & 0x00030000)) break; ) < 0) { nvkm_error(subdev, "ch %d timeout0: %08x\n", user, nvkm_rd32(device, 0x610200 + (ctrl * 0x10))); return -EBUSY; } nvkm_wr32(device, 0x610200 + (ctrl * 0x10), 0x00000001); if (nvkm_msec(device, 2000, u32 tmp = nvkm_rd32(device, 0x610200 + (ctrl * 0x10)); if ((tmp & 0x00030000) == 0x00010000) break; ) < 0) { nvkm_error(subdev, "ch %d timeout1: %08x\n", user, nvkm_rd32(device, 0x610200 + (ctrl * 0x10))); return -EBUSY; } return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs192100.00%3100.00%
Total192100.00%3100.00%

const struct nv50_disp_chan_func nv50_disp_pioc_func = { .init = nv50_disp_pioc_init, .fini = nv50_disp_pioc_fini, };

Overall Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs342100.00%3100.00%
Total342100.00%3100.00%
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