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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 "dmacnv50.h"
#include "rootnv50.h"
#include <core/ramht.h>
#include <subdev/timer.h>
int
gf119_disp_dmac_bind(struct nv50_disp_dmac *chan,
struct nvkm_object *object, u32 handle)
{
return nvkm_ramht_insert(chan->base.root->ramht, object,
chan->base.chid, -9, handle,
chan->base.chid << 27 | 0x00000001);
}
static void
gf119_disp_dmac_fini(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;
int chid = chan->base.chid;
/* deactivate channel */
nvkm_mask(device, 0x610490 + (chid * 0x0010), 0x00001010, 0x00001000);
nvkm_mask(device, 0x610490 + (chid * 0x0010), 0x00000003, 0x00000000);
if (nvkm_msec(device, 2000,
if (!(nvkm_rd32(device, 0x610490 + (chid * 0x10)) & 0x001e0000))
break;
) < 0) {
nvkm_error(subdev, "ch %d fini: %08x
", chid,
nvkm_rd32(device, 0x610490 + (chid * 0x10)));
}
/* disable error reporting and completion notification */
nvkm_mask(device, 0x610090, 0x00000001 << chid, 0x00000000);
nvkm_mask(device, 0x6100a0, 0x00000001 << chid, 0x00000000);
}
static int
gf119_disp_dmac_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;
int chid = chan->base.chid;
/* enable error reporting */
nvkm_mask(device, 0x6100a0, 0x00000001 << chid, 0x00000001 << chid);
/* initialise channel for dma command submission */
nvkm_wr32(device, 0x610494 + (chid * 0x0010), chan->push);
nvkm_wr32(device, 0x610498 + (chid * 0x0010), 0x00010000);
nvkm_wr32(device, 0x61049c + (chid * 0x0010), 0x00000001);
nvkm_mask(device, 0x610490 + (chid * 0x0010), 0x00000010, 0x00000010);
nvkm_wr32(device, 0x640000 + (chid * 0x1000), 0x00000000);
nvkm_wr32(device, 0x610490 + (chid * 0x0010), 0x00000013);
/* wait for it to go inactive */
if (nvkm_msec(device, 2000,
if (!(nvkm_rd32(device, 0x610490 + (chid * 0x10)) & 0x80000000))
break;
) < 0) {
nvkm_error(subdev, "ch %d init: %08x
", chid,
nvkm_rd32(device, 0x610490 + (chid * 0x10)));
return -EBUSY;
}
return 0;
}
const struct nv50_disp_dmac_func
gf119_disp_dmac_func = {
.init = gf119_disp_dmac_init,
.fini = gf119_disp_dmac_fini,
.bind = gf119_disp_dmac_bind,
};
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