cregit-Linux how code gets into the kernel

Release 4.11 drivers/gpu/drm/nouveau/nvkm/engine/disp/coregp102.c

/*
 * Copyright 2016 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 "dmacnv50.h"
#include "rootnv50.h"

#include <subdev/timer.h>

#include <nvif/class.h>


static int gp102_disp_core_init(struct nv50_disp_dmac *chan) { struct nv50_disp *disp = chan->base.root->disp; struct nvkm_subdev *subdev = &disp->base.engine.subdev; struct nvkm_device *device = subdev->device; /* enable error reporting */ nvkm_mask(device, 0x6100a0, 0x00000001, 0x00000001); /* initialise channel for dma command submission */ nvkm_wr32(device, 0x611494, chan->push); nvkm_wr32(device, 0x611498, 0x00010000); nvkm_wr32(device, 0x61149c, 0x00000001); nvkm_mask(device, 0x610490, 0x00000010, 0x00000010); nvkm_wr32(device, 0x640000, 0x00000000); nvkm_wr32(device, 0x610490, 0x01000013); /* wait for it to go inactive */ if (nvkm_msec(device, 2000, if (!(nvkm_rd32(device, 0x610490) & 0x80000000)) break; ) < 0) { nvkm_error(subdev, "core init: %08x\n", nvkm_rd32(device, 0x610490)); return -EBUSY; } return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs159100.00%2100.00%
Total159100.00%2100.00%

static const struct nv50_disp_dmac_func gp102_disp_core_func = { .init = gp102_disp_core_init, .fini = gf119_disp_core_fini, .bind = gf119_disp_dmac_bind, }; const struct nv50_disp_dmac_oclass gp102_disp_core_oclass = { .base.oclass = GP102_DISP_CORE_CHANNEL_DMA, .base.minver = 0, .base.maxver = 0, .ctor = nv50_disp_core_new, .func = &gp102_disp_core_func, .mthd = &gk104_disp_core_chan_mthd, .chid = 0, };

Overall Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs245100.00%3100.00%
Total245100.00%3100.00%
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