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b3a66c2476
Adds functionality to calculate adsp cpu usage Inits, loads, starts and resume adsp_lpthread app Bug 1727014 Change-Id: Icaf7a1ba9e91bff19d7fbc894bfdd0f884971d6c Signed-off-by: Hariharan Sivaraman <hariharans@nvidia.com> Reviewed-on: http://git-master/r/1134173 (cherry picked from commit 256bd7180cefa523a9e480be315fbf47b9c8de4f) Signed-off-by: Hariharan Sivaraman <hariharans@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1564162 Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com> GVS: Gerrit_Virtual_Submit Reviewed-by: Ajay Nandakumar M <anandakumarm@nvidia.com> Reviewed-by: Nitin Pai <npai@nvidia.com> Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
121 lines
3.0 KiB
C
121 lines
3.0 KiB
C
/*
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* Copyright (c) 2016-2017, NVIDIA CORPORATION. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*/
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#include <linux/fs.h>
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#include <asm/segment.h>
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#include <asm/uaccess.h>
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#include <linux/slab.h>
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#include <linux/workqueue.h>
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#include <linux/tegra_nvadsp.h>
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#include "dev.h"
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/* #define VERBOSE_OUTPUT_LPTHREAD */
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struct adsp_lpthread_shared_state_t {
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uint16_t mbox_id;
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};
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enum adsp_lpthread_mbx_cmd {
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adsp_lpthread_cmd_resume = 0,
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adsp_lpthread_cmd_pause,
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adsp_lpthread_cmd_close,
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};
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static struct nvadsp_mbox mbox;
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static struct adsp_lpthread_shared_state_t *adsp_lpthread;
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int adsp_lpthread_init(bool is_adsp_suspended)
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{
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nvadsp_app_handle_t handle;
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nvadsp_app_info_t *app_info;
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int ret;
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#ifdef VERBOSE_OUTPUT_LPTHREAD
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pr_info("ADSP_LPTHREAD_INIT(): %d\n", (int)is_adsp_suspended);
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#endif
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handle = nvadsp_app_load("adsp_lpthread", "adsp_lpthread.elf");
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if (!handle)
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return -1;
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app_info = nvadsp_app_init(handle, NULL);
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if (!app_info) {
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pr_info("unable to init app adsp_lpthread\n");
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return -2;
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}
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ret = nvadsp_app_start(app_info);
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if (ret) {
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pr_info("unable to start app adsp_lpthread\n");
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return -3;
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}
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adsp_lpthread = (struct adsp_lpthread_shared_state_t *)app_info->mem.shared;
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ret = nvadsp_mbox_open(&mbox, &adsp_lpthread->mbox_id, "adsp_lpthread", NULL, NULL);
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if (ret) {
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pr_info("Failed to open mbox %d", adsp_lpthread->mbox_id);
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return -4;
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}
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/* Start timer is adsp is not in suspended state */
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if (!is_adsp_suspended) {
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#ifdef VERBOSE_OUTPUT_LPTHREAD
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pr_info("Attempting resume() from init()\n");
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#endif
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ret = adsp_lpthread_resume();
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return ret;
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}
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return 0;
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}
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int adsp_lpthread_resume(void)
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{
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int ret;
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#ifdef VERBOSE_OUTPUT_LPTHREAD
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pr_info("ADSP_LPTHREAD_RESUME()\n");
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#endif
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ret = nvadsp_mbox_send(&mbox, adsp_lpthread_cmd_resume, NVADSP_MBOX_SMSG, 0, 0);
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if (ret)
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pr_info("nvadsp_mbox_send() in adsp_lpthread_resume() failed: %d, ret = %d\n", adsp_lpthread->mbox_id, ret);
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return ret;
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}
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int adsp_lpthread_pause(void)
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{
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int ret;
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#ifdef VERBOSE_OUTPUT_LPTHREAD
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pr_info("ADSP_LPTHREAD_PAUSE()\n");
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#endif
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ret = nvadsp_mbox_send(&mbox, adsp_lpthread_cmd_pause, NVADSP_MBOX_SMSG, 0, 0);
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if (ret)
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pr_info("nvadsp_mbox_send() in adsp_lpthread_pause() failed: %d, ret = %d\n", adsp_lpthread->mbox_id, ret);
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return ret;
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}
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int adsp_lpthread_exit(void)
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{
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int ret;
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#ifdef VERBOSE_OUTPUT_LPTHREAD
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pr_info("ADSP_LPTHREAD_EXIT()\n");
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#endif
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ret = nvadsp_mbox_send(&mbox, adsp_lpthread_cmd_close, NVADSP_MBOX_SMSG, 0, 0);
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if (ret)
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pr_info("nvadsp_mbox_send() in adsp_lpthread_exit() failed: %d, ret = %d\n", adsp_lpthread->mbox_id, ret);
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nvadsp_mbox_close(&mbox);
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return ret;
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}
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