| /* |
| * 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, |
| enum nvkm_subdev_type type, int inst, 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, type, inst, 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, |
| sec2->engine.subdev.name, 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; |
| }; |