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/*
* Copyright (c) 2017, NVIDIA CORPORATION. All rights reserved.
*
* 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 AUTHORS OR COPYRIGHT HOLDERS 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.
*/
#include "priv.h"
#include <core/firmware.h>
#include <subdev/top.h>
static void
nvkm_sec2_recv(struct work_struct *work)
{
struct nvkm_sec2 *sec2 = container_of(work, typeof(*sec2), work);
if (!sec2->initmsg_received) {
int ret = sec2->func->initmsg(sec2);
if (ret) {
nvkm_error(&sec2->engine.subdev,
"error parsing init message: %d\n", ret);
return;
}
sec2->initmsg_received = true;
}
nvkm_falcon_msgq_recv(sec2->msgq);
}
static void
nvkm_sec2_intr(struct nvkm_engine *engine)
{
struct nvkm_sec2 *sec2 = nvkm_sec2(engine);
sec2->func->intr(sec2);
}
static int
nvkm_sec2_fini(struct nvkm_engine *engine, bool suspend)
{
struct nvkm_sec2 *sec2 = nvkm_sec2(engine);
flush_work(&sec2->work);
if (suspend) {
nvkm_falcon_cmdq_fini(sec2->cmdq);
sec2->initmsg_received = false;
}
return 0;
}
static void *
nvkm_sec2_dtor(struct nvkm_engine *engine)
{
struct nvkm_sec2 *sec2 = nvkm_sec2(engine);
nvkm_falcon_msgq_del(&sec2->msgq);
nvkm_falcon_cmdq_del(&sec2->cmdq);
nvkm_falcon_qmgr_del(&sec2->qmgr);
nvkm_falcon_dtor(&sec2->falcon);
return sec2;
}
static const struct nvkm_engine_func
nvkm_sec2 = {
.dtor = nvkm_sec2_dtor,
.fini = nvkm_sec2_fini,
.intr = nvkm_sec2_intr,
};
int
nvkm_sec2_new_(const struct nvkm_sec2_fwif *fwif, struct nvkm_device *device,
int index, u32 addr, struct nvkm_sec2 **psec2)
{
struct nvkm_sec2 *sec2;
int ret;
if (!(sec2 = *psec2 = kzalloc(sizeof(*sec2), GFP_KERNEL)))
return -ENOMEM;
ret = nvkm_engine_ctor(&nvkm_sec2, device, index, true, &sec2->engine);
if (ret)
return ret;
fwif = nvkm_firmware_load(&sec2->engine.subdev, fwif, "Sec2", sec2);
if (IS_ERR(fwif))
return PTR_ERR(fwif);
sec2->func = fwif->func;
ret = nvkm_falcon_ctor(sec2->func->flcn, &sec2->engine.subdev,
nvkm_subdev_name[index], addr, &sec2->falcon);
if (ret)
return ret;
if ((ret = nvkm_falcon_qmgr_new(&sec2->falcon, &sec2->qmgr)) ||
(ret = nvkm_falcon_cmdq_new(sec2->qmgr, "cmdq", &sec2->cmdq)) ||
(ret = nvkm_falcon_msgq_new(sec2->qmgr, "msgq", &sec2->msgq)))
return ret;
INIT_WORK(&sec2->work, nvkm_sec2_recv);
return 0;
};
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