Re: [PATCH 03/14] media: mediatek: vcodec: send share memory data to optee

[AngeloGioacchino Del Regno]

Il 11/09/23 14:59, Yunfei Dong ha scritto:
> Setting msg and vsi information to shared buffer, then call tee invoke
> function to send it to optee-os.
>
> Signed-off-by: Yunfei Dong <yunfei.dong@xxxxxxxxxxxx>
> ---
>   .../vcodec/decoder/mtk_vcodec_dec_optee.c     | 139 ++++++++++++++++++
>   .../vcodec/decoder/mtk_vcodec_dec_optee.h     |  51 +++++++
>   2 files changed, 190 insertions(+)
>
> diff --git a/drivers/media/platform/mediatek/vcodec/decoder/mtk_vcodec_dec_optee.c b/drivers/media/platform/mediatek/vcodec/decoder/mtk_vcodec_dec_optee.c
> index 806ca87c8de7..d16496003a39 100644
> --- a/drivers/media/platform/mediatek/vcodec/decoder/mtk_vcodec_dec_optee.c
> +++ b/drivers/media/platform/mediatek/vcodec/decoder/mtk_vcodec_dec_optee.c
> @@ -232,3 +232,142 @@ void mtk_vcodec_dec_optee_release(struct mtk_vdec_optee_private *optee_private)
>   	mutex_unlock(&optee_private->tee_mutex);
>   }
>   EXPORT_SYMBOL_GPL(mtk_vcodec_dec_optee_release);
> +
> +static int mtk_vcodec_dec_optee_fill_shm(struct tee_param *command_params,
> +					 struct mtk_vdec_optee_shm_memref *shm_memref,
> +					 struct mtk_vdec_optee_data_to_shm *data,
> +					 int index)
> +{
> +	if (!data->msg_buf_size[index] || !data->msg_buf[index]) {
> +		pr_err(MTK_DBG_VCODEC_STR "tee invalid buf param: %d.\n", index);
> +		return -EINVAL;
> +	}
> +
> +	*command_params = (struct tee_param) {
> +		.attr = shm_memref->param_type,
> +		.u.memref = {
> +			.shm = shm_memref->msg_shm,
> +			.size = data->msg_buf_size[index],
> +			.shm_offs = 0,
> +		},
> +	};
> +
> +	if (!shm_memref->copy_to_ta) {
> +		pr_debug(MTK_DBG_VCODEC_STR "share memref data: 0x%x param_type:%llu.\n",
> +			 *((unsigned int *)shm_memref->msg_shm_ca_buf), shm_memref->param_type);
> +		return 0;
> +	}
> +
> +	memset(shm_memref->msg_shm_ca_buf, 0, shm_memref->msg_shm_size);
> +	memcpy(shm_memref->msg_shm_ca_buf, data->msg_buf[index], data->msg_buf_size[index]);
> +
> +	pr_debug(MTK_DBG_VCODEC_STR "share memref data => msg id:0x%x 0x%x param_type:%llu.\n",
> +		 *((unsigned int *)data->msg_buf[index]),
> +		 *((unsigned int *)shm_memref->msg_shm_ca_buf),
> +		 shm_memref->param_type);

dev_dbg()?

> +
> +	return 0;
> +}
> +
> +void mtk_vcodec_dec_optee_set_data(struct mtk_vdec_optee_data_to_shm *data,
> +				   void *buf, int buf_size,
> +				   enum mtk_vdec_optee_data_index index)
> +{
> +	data->msg_buf[index] = buf;
> +	data->msg_buf_size[index] = buf_size;
> +}
> +EXPORT_SYMBOL_GPL(mtk_vcodec_dec_optee_set_data);
> +
> +int mtk_vcodec_dec_optee_invokd_cmd(struct mtk_vdec_optee_private *optee_private,
> +				    enum mtk_vdec_hw_id hw_id,
> +				    struct mtk_vdec_optee_data_to_shm *data)
> +{
> +	struct tee_ioctl_invoke_arg trans_args;
> +	struct tee_param command_params[MTK_OPTEE_MAX_TEE_PARAMS];
> +	struct mtk_vdec_optee_ca_info *ca_info;
> +	struct mtk_vdec_optee_shm_memref *shm_memref;
> +	int ret = 0, index;

int i, ret;

> +
> +	if (hw_id == MTK_VDEC_LAT0)
> +		ca_info = &optee_private->lat_ca;
> +	else
> +		ca_info = &optee_private->core_ca;
> +
> +	memset(&trans_args, 0, sizeof(trans_args));
> +	memset(command_params, 0, sizeof(command_params));
> +
> +	trans_args = (struct tee_ioctl_invoke_arg) {
> +		.func = ca_info->vdec_session_func,
> +		.session = ca_info->vdec_session_id,
> +		.num_params = MTK_OPTEE_MAX_TEE_PARAMS,
> +	};
> +
> +	/* Fill msg command parameters */
> +	for (index = 0; index < MTK_OPTEE_MAX_TEE_PARAMS; index++) {
> +		shm_memref = &ca_info->shm_memref[index];
> +
> +		if (shm_memref->param_type == TEE_IOCTL_PARAM_ATTR_TYPE_NONE ||
> +		    data->msg_buf_size[index] == 0)
> +			continue;
> +
> +		pr_debug(MTK_DBG_VCODEC_STR "tee share memory data size: %d -> %d.\n",
> +			 data->msg_buf_size[index], shm_memref->msg_shm_size);
> +

dev_dbg()

> +		if (data->msg_buf_size[index] > shm_memref->msg_shm_size) {
> +			pr_err(MTK_DBG_VCODEC_STR "tee buf size big then shm size(%d -> %d).\n",
> +			       data->msg_buf_size[index], shm_memref->msg_shm_size);

dev_err()

> +			return -EINVAL;
> +		}
> +
> +		ret = mtk_vcodec_dec_optee_fill_shm(&command_params[index], shm_memref,
> +						    data, index);
> +		if (ret)
> +			return ret;
> +	}
> +
> +	ret = tee_client_invoke_func(optee_private->tee_vdec_ctx, &trans_args, command_params);
> +	if (ret < 0 || trans_args.ret != 0) {
> +		pr_err(MTK_DBG_VCODEC_STR "tee submit command fail: 0x%x 0x%x.\n",
> +		       trans_args.ret, ret);

dev_err()

> +		return (ret < 0) ? ret : trans_args.ret;
> +	}
> +
> +	/* clear all attrs, set all command param to unused */
> +	for (index = 0; index < MTK_OPTEE_MAX_TEE_PARAMS; index++) {
> +		data->msg_buf[index] = NULL;
> +		data->msg_buf_size[index] = 0;
> +	}
> +
> +	return 0;
> +}
> +EXPORT_SYMBOL_GPL(mtk_vcodec_dec_optee_invokd_cmd);
> +

Regards,
Angelo