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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 <core/client.h>
#include <core/os.h>
#include <core/enum.h>
#include <core/engctx.h>
#include <core/gpuobj.h>
#include <subdev/fb.h>
#include <engine/fifo.h>
#include <engine/cipher.h>
struct nv84_cipher_priv {
struct nouveau_engine base;
};
/*******************************************************************************
* Crypt object classes
******************************************************************************/
static int
nv84_cipher_object_ctor(struct nouveau_object *parent,
struct nouveau_object *engine,
struct nouveau_oclass *oclass, void *data, u32 size,
struct nouveau_object **pobject)
{
struct nouveau_gpuobj *obj;
int ret;
ret = nouveau_gpuobj_create(parent, engine, oclass, 0, parent,
16, 16, 0, &obj);
*pobject = nv_object(obj);
if (ret)
return ret;
nv_wo32(obj, 0x00, nv_mclass(obj));
nv_wo32(obj, 0x04, 0x00000000);
nv_wo32(obj, 0x08, 0x00000000);
nv_wo32(obj, 0x0c, 0x00000000);
return 0;
}
static struct nouveau_ofuncs
nv84_cipher_ofuncs = {
.ctor = nv84_cipher_object_ctor,
.dtor = _nouveau_gpuobj_dtor,
.init = _nouveau_gpuobj_init,
.fini = _nouveau_gpuobj_fini,
.rd32 = _nouveau_gpuobj_rd32,
.wr32 = _nouveau_gpuobj_wr32,
};
static struct nouveau_oclass
nv84_cipher_sclass[] = {
{ 0x74c1, &nv84_cipher_ofuncs },
{}
};
/*******************************************************************************
* PCIPHER context
******************************************************************************/
static struct nouveau_oclass
nv84_cipher_cclass = {
.handle = NV_ENGCTX(CIPHER, 0x84),
.ofuncs = &(struct nouveau_ofuncs) {
.ctor = _nouveau_engctx_ctor,
.dtor = _nouveau_engctx_dtor,
.init = _nouveau_engctx_init,
.fini = _nouveau_engctx_fini,
.rd32 = _nouveau_engctx_rd32,
.wr32 = _nouveau_engctx_wr32,
},
};
/*******************************************************************************
* PCIPHER engine/subdev functions
******************************************************************************/
static const struct nouveau_bitfield nv84_cipher_intr_mask[] = {
{ 0x00000001, "INVALID_STATE" },
{ 0x00000002, "ILLEGAL_MTHD" },
{ 0x00000004, "ILLEGAL_CLASS" },
{ 0x00000080, "QUERY" },
{ 0x00000100, "FAULT" },
{}
};
static void
nv84_cipher_intr(struct nouveau_subdev *subdev)
{
struct nouveau_fifo *pfifo = nouveau_fifo(subdev);
struct nouveau_engine *engine = nv_engine(subdev);
struct nouveau_object *engctx;
struct nv84_cipher_priv *priv = (void *)subdev;
u32 stat = nv_rd32(priv, 0x102130);
u32 mthd = nv_rd32(priv, 0x102190);
u32 data = nv_rd32(priv, 0x102194);
u32 inst = nv_rd32(priv, 0x102188) & 0x7fffffff;
int chid;
engctx = nouveau_engctx_get(engine, inst);
chid = pfifo->chid(pfifo, engctx);
if (stat) {
nv_error(priv, "%s", "");
nouveau_bitfield_print(nv84_cipher_intr_mask, stat);
pr_cont(" ch %d [0x%010llx %s] mthd 0x%04x data 0x%08x\n",
chid, (u64)inst << 12, nouveau_client_name(engctx),
mthd, data);
}
nv_wr32(priv, 0x102130, stat);
nv_wr32(priv, 0x10200c, 0x10);
nouveau_engctx_put(engctx);
}
static int
nv84_cipher_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
struct nouveau_oclass *oclass, void *data, u32 size,
struct nouveau_object **pobject)
{
struct nv84_cipher_priv *priv;
int ret;
ret = nouveau_engine_create(parent, engine, oclass, true,
"PCIPHER", "cipher", &priv);
*pobject = nv_object(priv);
if (ret)
return ret;
nv_subdev(priv)->unit = 0x00004000;
nv_subdev(priv)->intr = nv84_cipher_intr;
nv_engine(priv)->cclass = &nv84_cipher_cclass;
nv_engine(priv)->sclass = nv84_cipher_sclass;
return 0;
}
static int
nv84_cipher_init(struct nouveau_object *object)
{
struct nv84_cipher_priv *priv = (void *)object;
int ret;
ret = nouveau_engine_init(&priv->base);
if (ret)
return ret;
nv_wr32(priv, 0x102130, 0xffffffff);
nv_wr32(priv, 0x102140, 0xffffffbf);
nv_wr32(priv, 0x10200c, 0x00000010);
return 0;
}
struct nouveau_oclass
nv84_cipher_oclass = {
.handle = NV_ENGINE(CIPHER, 0x84),
.ofuncs = &(struct nouveau_ofuncs) {
.ctor = nv84_cipher_ctor,
.dtor = _nouveau_engine_dtor,
.init = nv84_cipher_init,
.fini = _nouveau_engine_fini,
},
};
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