acp-trace.c (1694B)
1// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) 2// 3// This file is provided under a dual BSD/GPLv2 license. When using or 4// redistributing this file, you may do so under either license. 5// 6// Copyright(c) 2021 Advanced Micro Devices, Inc. All rights reserved. 7// 8// Authors: Vishnuvardhanrao Ravuapati <vishnuvardhanrao.ravulapati@amd.com> 9// V Sujith Kumar Reddy <Vsujithkumar.Reddy@amd.com> 10 11/*This file support Host TRACE Logger driver callback for SOF FW */ 12 13#include "acp.h" 14 15#define ACP_LOGGER_STREAM 8 16#define NUM_PAGES 16 17 18int acp_sof_trace_release(struct snd_sof_dev *sdev) 19{ 20 struct acp_dsp_stream *stream; 21 struct acp_dev_data *adata; 22 int ret; 23 24 adata = sdev->pdata->hw_pdata; 25 stream = adata->dtrace_stream; 26 ret = acp_dsp_stream_put(sdev, stream); 27 if (ret < 0) { 28 dev_err(sdev->dev, "Failed to release trace stream\n"); 29 return ret; 30 } 31 32 adata->dtrace_stream = NULL; 33 return 0; 34} 35EXPORT_SYMBOL_NS(acp_sof_trace_release, SND_SOC_SOF_AMD_COMMON); 36 37int acp_sof_trace_init(struct snd_sof_dev *sdev, struct snd_dma_buffer *dmab, 38 struct sof_ipc_dma_trace_params_ext *dtrace_params) 39{ 40 struct acp_dsp_stream *stream; 41 struct acp_dev_data *adata; 42 int ret; 43 44 adata = sdev->pdata->hw_pdata; 45 stream = acp_dsp_stream_get(sdev, ACP_LOGGER_STREAM); 46 if (!stream) 47 return -ENODEV; 48 49 stream->dmab = dmab; 50 stream->num_pages = NUM_PAGES; 51 52 ret = acp_dsp_stream_config(sdev, stream); 53 if (ret < 0) { 54 acp_dsp_stream_put(sdev, stream); 55 return ret; 56 } 57 58 adata->dtrace_stream = stream; 59 dtrace_params->stream_tag = stream->stream_tag; 60 dtrace_params->buffer.phy_addr = stream->reg_offset; 61 62 return 0; 63} 64EXPORT_SYMBOL_NS(acp_sof_trace_init, SND_SOC_SOF_AMD_COMMON);