86 lines
2.7 KiB
C
86 lines
2.7 KiB
C
/*
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* Copyright 2012 Red Hat Inc.
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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 COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Authors: Ben Skeggs
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*/
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#include "channv50.h"
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#include "rootnv50.h"
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#include <subdev/timer.h>
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static void
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nv50_disp_pioc_fini(struct nv50_disp_chan *chan)
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{
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struct nv50_disp *disp = chan->root->disp;
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struct nvkm_subdev *subdev = &disp->base.engine.subdev;
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struct nvkm_device *device = subdev->device;
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int ctrl = chan->chid.ctrl;
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int user = chan->chid.user;
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nvkm_mask(device, 0x610200 + (ctrl * 0x10), 0x00000001, 0x00000000);
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if (nvkm_msec(device, 2000,
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if (!(nvkm_rd32(device, 0x610200 + (ctrl * 0x10)) & 0x00030000))
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break;
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) < 0) {
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nvkm_error(subdev, "ch %d timeout: %08x\n", user,
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nvkm_rd32(device, 0x610200 + (ctrl * 0x10)));
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}
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}
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static int
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nv50_disp_pioc_init(struct nv50_disp_chan *chan)
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{
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struct nv50_disp *disp = chan->root->disp;
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struct nvkm_subdev *subdev = &disp->base.engine.subdev;
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struct nvkm_device *device = subdev->device;
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int ctrl = chan->chid.ctrl;
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int user = chan->chid.user;
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nvkm_wr32(device, 0x610200 + (ctrl * 0x10), 0x00002000);
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if (nvkm_msec(device, 2000,
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if (!(nvkm_rd32(device, 0x610200 + (ctrl * 0x10)) & 0x00030000))
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break;
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) < 0) {
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nvkm_error(subdev, "ch %d timeout0: %08x\n", user,
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nvkm_rd32(device, 0x610200 + (ctrl * 0x10)));
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return -EBUSY;
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}
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nvkm_wr32(device, 0x610200 + (ctrl * 0x10), 0x00000001);
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if (nvkm_msec(device, 2000,
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u32 tmp = nvkm_rd32(device, 0x610200 + (ctrl * 0x10));
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if ((tmp & 0x00030000) == 0x00010000)
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break;
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) < 0) {
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nvkm_error(subdev, "ch %d timeout1: %08x\n", user,
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nvkm_rd32(device, 0x610200 + (ctrl * 0x10)));
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return -EBUSY;
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}
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return 0;
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}
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const struct nv50_disp_chan_func
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nv50_disp_pioc_func = {
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.init = nv50_disp_pioc_init,
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.fini = nv50_disp_pioc_fini,
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};
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