Release 4.18 drivers/gpu/drm/nouveau/nvkm/engine/disp/dmacnv50.c
/*
* 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 <core/client.h>
#include <core/ramht.h>
#include <subdev/fb.h>
#include <subdev/mmu.h>
#include <subdev/timer.h>
#include <engine/dma.h>
int
nv50_disp_dmac_new_(const struct nv50_disp_chan_func *func,
const struct nv50_disp_chan_mthd *mthd,
struct nv50_disp *disp, int chid, int head, u64 push,
const struct nvkm_oclass *oclass,
struct nvkm_object **pobject)
{
struct nvkm_client *client = oclass->client;
struct nv50_disp_chan *chan;
int ret;
ret = nv50_disp_chan_new_(func, mthd, disp, chid, chid, head, oclass,
pobject);
chan = nv50_disp_chan(*pobject);
if (ret)
return ret;
chan->memory = nvkm_umem_search(client, push);
if (IS_ERR(chan->memory))
return PTR_ERR(chan->memory);
if (nvkm_memory_size(chan->memory) < 0x1000)
return -EINVAL;
switch (nvkm_memory_target(chan->memory)) {
case NVKM_MEM_TARGET_VRAM: chan->push = 0x00000001; break;
case NVKM_MEM_TARGET_NCOH: chan->push = 0x00000002; break;
case NVKM_MEM_TARGET_HOST: chan->push = 0x00000003; break;
default:
return -EINVAL;
}
chan->push |= nvkm_memory_addr(chan->memory) >> 8;
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Ben Skeggs | 201 | 100.00% | 7 | 100.00% |
| Total | 201 | 100.00% | 7 | 100.00% |
int
nv50_disp_dmac_bind(struct nv50_disp_chan *chan,
struct nvkm_object *object, u32 handle)
{
return nvkm_ramht_insert(chan->disp->ramht, object,
chan->chid.user, -10, handle,
chan->chid.user << 28 |
chan->chid.user);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Ben Skeggs | 55 | 100.00% | 5 | 100.00% |
| Total | 55 | 100.00% | 5 | 100.00% |
static void
nv50_disp_dmac_fini(struct nv50_disp_chan *chan)
{
struct nvkm_subdev *subdev = &chan->disp->base.engine.subdev;
struct nvkm_device *device = subdev->device;
int ctrl = chan->chid.ctrl;
int user = chan->chid.user;
/* deactivate channel */
nvkm_mask(device, 0x610200 + (ctrl * 0x0010), 0x00001010, 0x00001000);
nvkm_mask(device, 0x610200 + (ctrl * 0x0010), 0x00000003, 0x00000000);
if (nvkm_msec(device, 2000,
if (!(nvkm_rd32(device, 0x610200 + (ctrl * 0x10)) & 0x001e0000))
break;
) < 0) {
nvkm_error(subdev, "ch %d fini timeout, %08x\n", user,
nvkm_rd32(device, 0x610200 + (ctrl * 0x10)));
}
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Ben Skeggs | 132 | 100.00% | 4 | 100.00% |
| Total | 132 | 100.00% | 4 | 100.00% |
static int
nv50_disp_dmac_init(struct nv50_disp_chan *chan)
{
struct nvkm_subdev *subdev = &chan->disp->base.engine.subdev;
struct nvkm_device *device = subdev->device;
int ctrl = chan->chid.ctrl;
int user = chan->chid.user;
/* initialise channel for dma command submission */
nvkm_wr32(device, 0x610204 + (ctrl * 0x0010), chan->push);
nvkm_wr32(device, 0x610208 + (ctrl * 0x0010), 0x00010000);
nvkm_wr32(device, 0x61020c + (ctrl * 0x0010), ctrl);
nvkm_mask(device, 0x610200 + (ctrl * 0x0010), 0x00000010, 0x00000010);
nvkm_wr32(device, 0x640000 + (ctrl * 0x1000), 0x00000000);
nvkm_wr32(device, 0x610200 + (ctrl * 0x0010), 0x00000013);
/* wait for it to go inactive */
if (nvkm_msec(device, 2000,
if (!(nvkm_rd32(device, 0x610200 + (ctrl * 0x10)) & 0x80000000))
break;
) < 0) {
nvkm_error(subdev, "ch %d init timeout, %08x\n", user,
nvkm_rd32(device, 0x610200 + (ctrl * 0x10)));
return -EBUSY;
}
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Ben Skeggs | 200 | 100.00% | 4 | 100.00% |
| Total | 200 | 100.00% | 4 | 100.00% |
const struct nv50_disp_chan_func
nv50_disp_dmac_func = {
.init = nv50_disp_dmac_init,
.fini = nv50_disp_dmac_fini,
.intr = nv50_disp_chan_intr,
.user = nv50_disp_chan_user,
.bind = nv50_disp_dmac_bind,
};
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Ben Skeggs | 642 | 100.00% | 11 | 100.00% |
| Total | 642 | 100.00% | 11 | 100.00% |
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