60 lines
1.9 KiB
C
60 lines
1.9 KiB
C
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/*
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* Copyright (c) 2017, NVIDIA CORPORATION. All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#include <subdev/ibus.h>
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#include "priv.h"
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static int
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gp10b_ibus_init(struct nvkm_subdev *ibus)
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{
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struct nvkm_device *device = ibus->device;
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nvkm_wr32(device, 0x1200a8, 0x0);
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/* init ring */
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nvkm_wr32(device, 0x12004c, 0x4);
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nvkm_wr32(device, 0x122204, 0x2);
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nvkm_rd32(device, 0x122204);
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/* timeout configuration */
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nvkm_wr32(device, 0x009080, 0x800186a0);
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return 0;
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}
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static const struct nvkm_subdev_func
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gp10b_ibus = {
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.init = gp10b_ibus_init,
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.intr = gk104_ibus_intr,
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};
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int
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gp10b_ibus_new(struct nvkm_device *device, int index,
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struct nvkm_subdev **pibus)
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{
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struct nvkm_subdev *ibus;
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if (!(ibus = *pibus = kzalloc(sizeof(*ibus), GFP_KERNEL)))
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return -ENOMEM;
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nvkm_subdev_ctor(&gp10b_ibus, device, index, ibus);
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return 0;
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}
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