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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 "priv.h"
#include <core/client.h>
#include <core/gpuobj.h>
#include <subdev/fb.h>
#include <nvif/class.h>
#include <nvif/unpack.h>
struct gf100_dmaobj_priv {
struct nvkm_dmaobj base;
u32 flags0;
u32 flags5;
};
static int
gf100_dmaobj_bind(struct nvkm_dmaobj *dmaobj, struct nvkm_object *parent,
struct nvkm_gpuobj **pgpuobj)
{
struct gf100_dmaobj_priv *priv = (void *)dmaobj;
int ret;
if (!nv_iclass(parent, NV_ENGCTX_CLASS)) {
switch (nv_mclass(parent->parent)) {
case GT214_DISP_CORE_CHANNEL_DMA:
case GT214_DISP_BASE_CHANNEL_DMA:
case GT214_DISP_OVERLAY_CHANNEL_DMA:
break;
default:
return -EINVAL;
}
} else
return 0;
ret = nvkm_gpuobj_new(parent, parent, 24, 32, 0, pgpuobj);
if (ret == 0) {
nv_wo32(*pgpuobj, 0x00, priv->flags0 | nv_mclass(dmaobj));
nv_wo32(*pgpuobj, 0x04, lower_32_bits(priv->base.limit));
nv_wo32(*pgpuobj, 0x08, lower_32_bits(priv->base.start));
nv_wo32(*pgpuobj, 0x0c, upper_32_bits(priv->base.limit) << 24 |
upper_32_bits(priv->base.start));
nv_wo32(*pgpuobj, 0x10, 0x00000000);
nv_wo32(*pgpuobj, 0x14, priv->flags5);
}
return ret;
}
static int
gf100_dmaobj_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
struct nvkm_oclass *oclass, void *data, u32 size,
struct nvkm_object **pobject)
{
struct nvkm_dmaeng *dmaeng = (void *)engine;
union {
struct gf100_dma_v0 v0;
} *args;
struct gf100_dmaobj_priv *priv;
u32 kind, user, unkn;
int ret;
ret = nvkm_dmaobj_create(parent, engine, oclass, &data, &size, &priv);
*pobject = nv_object(priv);
if (ret)
return ret;
args = data;
nv_ioctl(parent, "create gf100 dma size %d\n", size);
if (nvif_unpack(args->v0, 0, 0, false)) {
nv_ioctl(parent, "create gf100 dma vers %d priv %d kind %02x\n",
args->v0.version, args->v0.priv, args->v0.kind);
kind = args->v0.kind;
user = args->v0.priv;
unkn = 0;
} else
if (size == 0) {
if (priv->base.target != NV_MEM_TARGET_VM) {
kind = GF100_DMA_V0_KIND_PITCH;
user = GF100_DMA_V0_PRIV_US;
unkn = 2;
} else {
kind = GF100_DMA_V0_KIND_VM;
user = GF100_DMA_V0_PRIV_VM;
unkn = 0;
}
} else
return ret;
if (user > 2)
return -EINVAL;
priv->flags0 |= (kind << 22) | (user << 20);
priv->flags5 |= (unkn << 16);
switch (priv->base.target) {
case NV_MEM_TARGET_VM:
priv->flags0 |= 0x00000000;
break;
case NV_MEM_TARGET_VRAM:
priv->flags0 |= 0x00010000;
break;
case NV_MEM_TARGET_PCI:
priv->flags0 |= 0x00020000;
break;
case NV_MEM_TARGET_PCI_NOSNOOP:
priv->flags0 |= 0x00030000;
break;
default:
return -EINVAL;
}
switch (priv->base.access) {
case NV_MEM_ACCESS_VM:
break;
case NV_MEM_ACCESS_RO:
priv->flags0 |= 0x00040000;
break;
case NV_MEM_ACCESS_WO:
case NV_MEM_ACCESS_RW:
priv->flags0 |= 0x00080000;
break;
}
return dmaeng->bind(&priv->base, nv_object(priv), (void *)pobject);
}
static struct nvkm_ofuncs
gf100_dmaobj_ofuncs = {
.ctor = gf100_dmaobj_ctor,
.dtor = _nvkm_dmaobj_dtor,
.init = _nvkm_dmaobj_init,
.fini = _nvkm_dmaobj_fini,
};
static struct nvkm_oclass
gf100_dmaeng_sclass[] = {
{ NV_DMA_FROM_MEMORY, &gf100_dmaobj_ofuncs },
{ NV_DMA_TO_MEMORY, &gf100_dmaobj_ofuncs },
{ NV_DMA_IN_MEMORY, &gf100_dmaobj_ofuncs },
{}
};
struct nvkm_oclass *
gf100_dmaeng_oclass = &(struct nvkm_dmaeng_impl) {
.base.handle = NV_ENGINE(DMAOBJ, 0xc0),
.base.ofuncs = &(struct nvkm_ofuncs) {
.ctor = _nvkm_dmaeng_ctor,
.dtor = _nvkm_dmaeng_dtor,
.init = _nvkm_dmaeng_init,
.fini = _nvkm_dmaeng_fini,
},
.sclass = gf100_dmaeng_sclass,
.bind = gf100_dmaobj_bind,
}.base;
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