6.6-stable review patch. If anyone has any objections, please let me know.
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From: Peter Ujfalusi peter.ujfalusi@linux.intel.com
[ Upstream commit c447636970e3409ac39f0bb8c2dcff6b726f36b0 ]
Separate the IPC message part as struct sof_ipc4_src_data. This struct describes the message payload passed to the firmware via the mailbox.
It is not wise to be 'clever' and try to use the first part of a struct as IPC message without marking the message section as packed and aligned.
Signed-off-by: Peter Ujfalusi peter.ujfalusi@linux.intel.com Reviewed-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com Reviewed-by: Bard Liao yung-chuan.liao@linux.intel.com Reviewed-by: Ranjani Sridharan ranjani.sridharan@linux.intel.com Link: https://lore.kernel.org/r/20231129131411.27516-2-peter.ujfalusi@linux.intel.... Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- sound/soc/sof/ipc4-topology.c | 21 +++++++++++---------- sound/soc/sof/ipc4-topology.h | 16 ++++++++++++---- 2 files changed, 23 insertions(+), 14 deletions(-)
diff --git a/sound/soc/sof/ipc4-topology.c b/sound/soc/sof/ipc4-topology.c index 05c3b1153a91..42f6a99935d1 100644 --- a/sound/soc/sof/ipc4-topology.c +++ b/sound/soc/sof/ipc4-topology.c @@ -139,7 +139,7 @@ static const struct sof_topology_token gain_tokens[] = { /* SRC */ static const struct sof_topology_token src_tokens[] = { {SOF_TKN_SRC_RATE_OUT, SND_SOC_TPLG_TUPLE_TYPE_WORD, get_token_u32, - offsetof(struct sof_ipc4_src, sink_rate)}, + offsetof(struct sof_ipc4_src_data, sink_rate)}, };
static const struct sof_token_info ipc4_token_list[SOF_TOKEN_COUNT] = { @@ -812,11 +812,12 @@ static int sof_ipc4_widget_setup_comp_src(struct snd_sof_widget *swidget)
swidget->private = src;
- ret = sof_ipc4_get_audio_fmt(scomp, swidget, &src->available_fmt, &src->base_config); + ret = sof_ipc4_get_audio_fmt(scomp, swidget, &src->available_fmt, + &src->data.base_config); if (ret) goto err;
- ret = sof_update_ipc_object(scomp, src, SOF_SRC_TOKENS, swidget->tuples, + ret = sof_update_ipc_object(scomp, &src->data, SOF_SRC_TOKENS, swidget->tuples, swidget->num_tuples, sizeof(*src), 1); if (ret) { dev_err(scomp->dev, "Parsing SRC tokens failed\n"); @@ -825,7 +826,7 @@ static int sof_ipc4_widget_setup_comp_src(struct snd_sof_widget *swidget)
spipe->core_mask |= BIT(swidget->core);
- dev_dbg(scomp->dev, "SRC sink rate %d\n", src->sink_rate); + dev_dbg(scomp->dev, "SRC sink rate %d\n", src->data.sink_rate);
ret = sof_ipc4_widget_setup_msg(swidget, &src->msg); if (ret) @@ -1896,7 +1897,7 @@ static int sof_ipc4_prepare_src_module(struct snd_sof_widget *swidget, u32 out_ref_rate, out_ref_channels, out_ref_valid_bits; int output_format_index, input_format_index;
- input_format_index = sof_ipc4_init_input_audio_fmt(sdev, swidget, &src->base_config, + input_format_index = sof_ipc4_init_input_audio_fmt(sdev, swidget, &src->data.base_config, pipeline_params, available_fmt); if (input_format_index < 0) return input_format_index; @@ -1926,7 +1927,7 @@ static int sof_ipc4_prepare_src_module(struct snd_sof_widget *swidget, */ out_ref_rate = params_rate(fe_params);
- output_format_index = sof_ipc4_init_output_audio_fmt(sdev, &src->base_config, + output_format_index = sof_ipc4_init_output_audio_fmt(sdev, &src->data.base_config, available_fmt, out_ref_rate, out_ref_channels, out_ref_valid_bits); if (output_format_index < 0) { @@ -1936,10 +1937,10 @@ static int sof_ipc4_prepare_src_module(struct snd_sof_widget *swidget, }
/* update pipeline memory usage */ - sof_ipc4_update_resource_usage(sdev, swidget, &src->base_config); + sof_ipc4_update_resource_usage(sdev, swidget, &src->data.base_config);
out_audio_fmt = &available_fmt->output_pin_fmts[output_format_index].audio_fmt; - src->sink_rate = out_audio_fmt->sampling_frequency; + src->data.sink_rate = out_audio_fmt->sampling_frequency;
/* update pipeline_params for sink widgets */ return sof_ipc4_update_hw_params(sdev, pipeline_params, out_audio_fmt); @@ -2297,8 +2298,8 @@ static int sof_ipc4_widget_setup(struct snd_sof_dev *sdev, struct snd_sof_widget { struct sof_ipc4_src *src = swidget->private;
- ipc_size = sizeof(struct sof_ipc4_base_module_cfg) + sizeof(src->sink_rate); - ipc_data = src; + ipc_size = sizeof(src->data); + ipc_data = &src->data;
msg = &src->msg; break; diff --git a/sound/soc/sof/ipc4-topology.h b/sound/soc/sof/ipc4-topology.h index d75f17f4749c..f96536dbaee5 100644 --- a/sound/soc/sof/ipc4-topology.h +++ b/sound/soc/sof/ipc4-topology.h @@ -387,16 +387,24 @@ struct sof_ipc4_mixer { struct sof_ipc4_msg msg; };
-/** - * struct sof_ipc4_src SRC config data +/* + * struct sof_ipc4_src_data - IPC data for SRC * @base_config: IPC base config data * @sink_rate: Output rate for sink module + */ +struct sof_ipc4_src_data { + struct sof_ipc4_base_module_cfg base_config; + uint32_t sink_rate; +} __packed __aligned(4); + +/** + * struct sof_ipc4_src - SRC config data + * @data: IPC base config data * @available_fmt: Available audio format * @msg: IPC4 message struct containing header and data info */ struct sof_ipc4_src { - struct sof_ipc4_base_module_cfg base_config; - uint32_t sink_rate; + struct sof_ipc4_src_data data; struct sof_ipc4_available_audio_format available_fmt; struct sof_ipc4_msg msg; };