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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/client.h>
#include <core/handle.h>
#include <core/ramht.h>
#include <subdev/fb.h>
#include <subdev/timer.h>
#include <engine/dma.h>
void
nv50_disp_dmac_object_detach(struct nvkm_object *parent, int cookie)
{
struct nv50_disp_root *root = (void *)parent->parent;
nvkm_ramht_remove(root->ramht, cookie);
}
int
nv50_disp_dmac_object_attach(struct nvkm_object *parent,
struct nvkm_object *object, u32 name)
{
struct nv50_disp_root *root = (void *)parent->parent;
struct nv50_disp_chan *chan = (void *)parent;
u32 addr = nv_gpuobj(object)->node->offset;
u32 chid = chan->chid;
u32 data = (chid << 28) | (addr << 10) | chid;
return nvkm_ramht_insert(root->ramht, NULL, chid, 0, name, data);
}
int
nv50_disp_dmac_fini(struct nvkm_object *object, bool suspend)
{
struct nv50_disp *disp = (void *)object->engine;
struct nv50_disp_dmac *dmac = (void *)object;
struct nvkm_subdev *subdev = &disp->base.engine.subdev;
struct nvkm_device *device = subdev->device;
int chid = dmac->base.chid;
/* deactivate channel */
nvkm_mask(device, 0x610200 + (chid * 0x0010), 0x00001010, 0x00001000);
nvkm_mask(device, 0x610200 + (chid * 0x0010), 0x00000003, 0x00000000);
if (nvkm_msec(device, 2000,
if (!(nvkm_rd32(device, 0x610200 + (chid * 0x10)) & 0x001e0000))
break;
) < 0) {
nvkm_error(subdev, "ch %d fini timeout, %08x\n", chid,
nvkm_rd32(device, 0x610200 + (chid * 0x10)));
if (suspend)
return -EBUSY;
}
/* disable error reporting and completion notifications */
nvkm_mask(device, 0x610028, 0x00010001 << chid, 0x00000000 << chid);
return nv50_disp_chan_fini(&dmac->base, suspend);
}
int
nv50_disp_dmac_init(struct nvkm_object *object)
{
struct nv50_disp *disp = (void *)object->engine;
struct nv50_disp_dmac *dmac = (void *)object;
struct nvkm_subdev *subdev = &disp->base.engine.subdev;
struct nvkm_device *device = subdev->device;
int chid = dmac->base.chid;
int ret;
ret = nv50_disp_chan_init(&dmac->base);
if (ret)
return ret;
/* enable error reporting */
nvkm_mask(device, 0x610028, 0x00010000 << chid, 0x00010000 << chid);
/* initialise channel for dma command submission */
nvkm_wr32(device, 0x610204 + (chid * 0x0010), dmac->push);
nvkm_wr32(device, 0x610208 + (chid * 0x0010), 0x00010000);
nvkm_wr32(device, 0x61020c + (chid * 0x0010), chid);
nvkm_mask(device, 0x610200 + (chid * 0x0010), 0x00000010, 0x00000010);
nvkm_wr32(device, 0x640000 + (chid * 0x1000), 0x00000000);
nvkm_wr32(device, 0x610200 + (chid * 0x0010), 0x00000013);
/* wait for it to go inactive */
if (nvkm_msec(device, 2000,
if (!(nvkm_rd32(device, 0x610200 + (chid * 0x10)) & 0x80000000))
break;
) < 0) {
nvkm_error(subdev, "ch %d init timeout, %08x\n", chid,
nvkm_rd32(device, 0x610200 + (chid * 0x10)));
return -EBUSY;
}
return 0;
}
void
nv50_disp_dmac_dtor(struct nvkm_object *object)
{
struct nv50_disp_dmac *dmac = (void *)object;
nv50_disp_chan_destroy(&dmac->base);
}
int
nv50_disp_dmac_create_(struct nvkm_object *parent,
struct nvkm_object *engine,
struct nvkm_oclass *oclass, u64 pushbuf, int head,
int length, void **pobject)
{
struct nvkm_device *device = parent->engine->subdev.device;
struct nvkm_client *client = nvkm_client(parent);
struct nvkm_dmaobj *dmaobj;
struct nv50_disp_dmac *dmac;
int ret;
ret = nv50_disp_chan_create_(parent, engine, oclass, head,
length, pobject);
dmac = *pobject;
if (ret)
return ret;
dmaobj = nvkm_dma_search(device->dma, client, pushbuf);
if (!dmaobj)
return -ENOENT;
if (dmaobj->limit - dmaobj->start != 0xfff)
return -EINVAL;
switch (dmaobj->target) {
case NV_MEM_TARGET_VRAM:
dmac->push = 0x00000001 | dmaobj->start >> 8;
break;
case NV_MEM_TARGET_PCI_NOSNOOP:
dmac->push = 0x00000003 | dmaobj->start >> 8;
break;
default:
return -EINVAL;
}
return 0;
}
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