[alsa-devel] Applied "ASoC: Intel: Skylake: large_config_get overhaul" to the asoc tree

[Mark Brown]

The patch

   ASoC: Intel: Skylake: large_config_get overhaul

has been applied to the asoc tree at

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-5.4

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.  

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark

>From 36004c42c761a6d95b867a4fbb9a955034e53351 Mon Sep 17 00:00:00 2001
From: Cezary Rojewski <cezary.rojewski at intel.com>
Date: Thu, 8 Aug 2019 20:15:49 +0200
Subject: [PATCH] ASoC: Intel: Skylake: large_config_get overhaul

LARGE_CONFIG_GET is mainly used to retrieve requested module parameters
but it may also carry TX payload with them. Update its implementation to
account for both TX and RX data.
First reply.header carries total payload size within data_off_sizefield.
Make use of reply.header to realloc returned buffer with correct size.

Failure of IPC request is permissive - error-payload may be returned, an
informative data why GET for given param failed - and thus function
should not collapse before entire processing is finished. Caller is
responsible for checking returned payload and bytes parameters.

Signed-off-by: Cezary Rojewski <cezary.rojewski at intel.com>
Link: https://lore.kernel.org/r/20190808181549.12521-3-cezary.rojewski@intel.com
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart at linux.intel.com>
Signed-off-by: Mark Brown <broonie at kernel.org>
---
 sound/soc/intel/skylake/skl-messages.c |  3 ++-
 sound/soc/intel/skylake/skl-sst-ipc.c  | 25 ++++++++++++++++++++-----
 sound/soc/intel/skylake/skl-sst-ipc.h  |  3 ++-
 3 files changed, 24 insertions(+), 7 deletions(-)

diff --git a/sound/soc/intel/skylake/skl-messages.c b/sound/soc/intel/skylake/skl-messages.c
index e8cc710f092b..84f0e6f58eb5 100644
--- a/sound/soc/intel/skylake/skl-messages.c
+++ b/sound/soc/intel/skylake/skl-messages.c
@@ -1379,11 +1379,12 @@ int skl_get_module_params(struct skl_dev *skl, u32 *params, int size,
 			  u32 param_id, struct skl_module_cfg *mcfg)
 {
 	struct skl_ipc_large_config_msg msg;
+	size_t bytes = size;
 
 	msg.module_id = mcfg->id.module_id;
 	msg.instance_id = mcfg->id.pvt_id;
 	msg.param_data_size = size;
 	msg.large_param_id = param_id;
 
-	return skl_ipc_get_large_config(&skl->ipc, &msg, params);
+	return skl_ipc_get_large_config(&skl->ipc, &msg, &params, &bytes);
 }
diff --git a/sound/soc/intel/skylake/skl-sst-ipc.c b/sound/soc/intel/skylake/skl-sst-ipc.c
index 196c80dadb1f..667cdddc289f 100644
--- a/sound/soc/intel/skylake/skl-sst-ipc.c
+++ b/sound/soc/intel/skylake/skl-sst-ipc.c
@@ -969,12 +969,18 @@ int skl_ipc_set_large_config(struct sst_generic_ipc *ipc,
 EXPORT_SYMBOL_GPL(skl_ipc_set_large_config);
 
 int skl_ipc_get_large_config(struct sst_generic_ipc *ipc,
-		struct skl_ipc_large_config_msg *msg, u32 *param)
+		struct skl_ipc_large_config_msg *msg,
+		u32 **payload, size_t *bytes)
 {
 	struct skl_ipc_header header = {0};
-	struct sst_ipc_message request = {0}, reply = {0};
+	struct sst_ipc_message request, reply = {0};
+	unsigned int *buf;
 	int ret;
 
+	reply.data = kzalloc(SKL_ADSP_W1_SZ, GFP_KERNEL);
+	if (!reply.data)
+		return -ENOMEM;
+
 	header.primary = IPC_MSG_TARGET(IPC_MOD_MSG);
 	header.primary |= IPC_MSG_DIR(IPC_MSG_REQUEST);
 	header.primary |= IPC_GLB_TYPE(IPC_MOD_LARGE_CONFIG_GET);
@@ -986,13 +992,22 @@ int skl_ipc_get_large_config(struct sst_generic_ipc *ipc,
 	header.extension |= IPC_FINAL_BLOCK(1);
 	header.extension |= IPC_INITIAL_BLOCK(1);
 
-	request.header = *(u64 *)(&header);
-	reply.data = param;
-	reply.size = msg->param_data_size;
+	request.header = *(u64 *)&header;
+	request.data = *payload;
+	request.size = *bytes;
+	reply.size = SKL_ADSP_W1_SZ;
+
 	ret = sst_ipc_tx_message_wait(ipc, request, &reply);
 	if (ret < 0)
 		dev_err(ipc->dev, "ipc: get large config fail, err: %d\n", ret);
 
+	reply.size = (reply.header >> 32) & IPC_DATA_OFFSET_SZ_MASK;
+	buf = krealloc(reply.data, reply.size, GFP_KERNEL);
+	if (!buf)
+		return -ENOMEM;
+	*payload = buf;
+	*bytes = reply.size;
+
 	return ret;
 }
 EXPORT_SYMBOL_GPL(skl_ipc_get_large_config);
diff --git a/sound/soc/intel/skylake/skl-sst-ipc.h b/sound/soc/intel/skylake/skl-sst-ipc.h
index 93af08cf41d2..08ac31778325 100644
--- a/sound/soc/intel/skylake/skl-sst-ipc.h
+++ b/sound/soc/intel/skylake/skl-sst-ipc.h
@@ -139,7 +139,8 @@ int skl_ipc_set_large_config(struct sst_generic_ipc *ipc,
 		struct skl_ipc_large_config_msg *msg, u32 *param);
 
 int skl_ipc_get_large_config(struct sst_generic_ipc *ipc,
-		struct skl_ipc_large_config_msg *msg, u32 *param);
+		struct skl_ipc_large_config_msg *msg,
+		u32 **payload, size_t *bytes);
 
 int skl_sst_ipc_load_library(struct sst_generic_ipc *ipc,
 			u8 dma_id, u8 table_id, bool wait);
-- 
2.20.1