From: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Date: Wed, 30 Mar 2022 20:19:18 +0000 (-0700)
Subject: ASoC: SOF: ipc: Add max_payload_size field in struct snd_sof_ipc
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=a3e6b3691b35c6312cff32127ffc01e81d6e6d41;p=linux.git

ASoC: SOF: ipc: Add max_payload_size field in struct snd_sof_ipc

The max_payload_size is an IPC level constraint. Add a new field,
max_payload_size to struct snd_sof_ipc and set it during IPC init.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Daniel Baluta <daniel.baluta@nxp.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://lore.kernel.org/r/20220330201926.1330402-4-ranjani.sridharan@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
---

diff --git a/sound/soc/sof/ipc.c b/sound/soc/sof/ipc.c
index 5f5753608c793..af2efc1c8436e 100644
--- a/sound/soc/sof/ipc.c
+++ b/sound/soc/sof/ipc.c
@@ -1005,6 +1005,8 @@ int sof_ipc_init_msg_memory(struct snd_sof_dev *sdev)
 	if (!msg->reply_data)
 		return -ENOMEM;
 
+	sdev->ipc->max_payload_size = SOF_IPC_MSG_MAX_SIZE;
+
 	return 0;
 }
 
diff --git a/sound/soc/sof/sof-priv.h b/sound/soc/sof/sof-priv.h
index 93de5547b9522..f75c6f76297e7 100644
--- a/sound/soc/sof/sof-priv.h
+++ b/sound/soc/sof/sof-priv.h
@@ -394,6 +394,9 @@ struct snd_sof_ipc {
 	/* disables further sending of ipc's */
 	bool disable_ipc_tx;
 
+	/* Maximum allowed size of a single IPC message/reply */
+	size_t max_payload_size;
+
 	struct snd_sof_ipc_msg msg;
 
 	/* IPC ops based on version */