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/*
* 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 chid = chan->chid;
nvkm_mask(device, 0x610200 + (chid * 0x10), 0x00000001, 0x00000000);
if (nvkm_msec(device, 2000,
if (!(nvkm_rd32(device, 0x610200 + (chid * 0x10)) & 0x00030000))
break;
) < 0) {
nvkm_error(subdev, "ch %d timeout: %08x\n", chid,
nvkm_rd32(device, 0x610200 + (chid * 0x10)));
}
}
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 chid = chan->chid;
nvkm_wr32(device, 0x610200 + (chid * 0x10), 0x00002000);
if (nvkm_msec(device, 2000,
if (!(nvkm_rd32(device, 0x610200 + (chid * 0x10)) & 0x00030000))
break;
) < 0) {
nvkm_error(subdev, "ch %d timeout0: %08x\n", chid,
nvkm_rd32(device, 0x610200 + (chid * 0x10)));
return -EBUSY;
}
nvkm_wr32(device, 0x610200 + (chid * 0x10), 0x00000001);
if (nvkm_msec(device, 2000,
u32 tmp = nvkm_rd32(device, 0x610200 + (chid * 0x10));
if ((tmp & 0x00030000) == 0x00010000)
break;
) < 0) {
nvkm_error(subdev, "ch %d timeout1: %08x\n", chid,
nvkm_rd32(device, 0x610200 + (chid * 0x10)));
return -EBUSY;
}
return 0;
}
const struct nv50_disp_chan_func
nv50_disp_pioc_func = {
.init = nv50_disp_pioc_init,
.fini = nv50_disp_pioc_fini,
};
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