Re: [PATCH 2/4] firmware: xilinx: add new function for do_feature_check_call

Michal Simek
2022-04-29T08:35:43Z

On 4/6/22 12:55, Ronak Jain wrote:
> Add new function for sending feature check request to firmware and
> call it from zynqmp_pm_feature().
>
> Signed-off-by: Ronak Jain <ronak.jain@xilinx.com>
> ---
> drivers/firmware/xilinx/zynqmp.c | 27 ++++++++++++++++++---------
> 1 file changed, 18 insertions(+), 9 deletions(-)
>
> diff --git a/drivers/firmware/xilinx/zynqmp.c b/drivers/firmware/xilinx/zynqmp.c
> index 41ca41697790..d27a3b20227b 100644
> --- a/drivers/firmware/xilinx/zynqmp.c
> +++ b/drivers/firmware/xilinx/zynqmp.c
> @@ -175,6 +175,23 @@ static noinline int do_fw_call_hvc(u64 arg0, u64 arg1, u64 arg2,
> return zynqmp_pm_ret_code((enum pm_ret_status)res.a0);
> }
>
> +static int do_feature_check_call(const u32 api_id, u32 *ret_payload)
> +{
> + int ret;
> + u64 smc_arg[2];
> +
> + smc_arg[0] = PM_SIP_SVC | PM_FEATURE_CHECK;
> + smc_arg[1] = api_id;
> +
> + ret = do_fw_call(smc_arg[0], smc_arg[1], 0, ret_payload);
> + if (ret)
> + ret = -EOPNOTSUPP;
> + else
> + ret = ret_payload[1];
> +
> + return ret;
> +}
> +
> /**
> * zynqmp_pm_feature() - Check whether given feature is supported or not and
> * store supported IOCTL/QUERY ID mask
> @@ -186,7 +203,6 @@ int zynqmp_pm_feature(const u32 api_id)
> {
> int ret;
> u32 ret_payload[PAYLOAD_ARG_CNT];
> - u64 smc_arg[2];
> struct pm_api_feature_data *feature_data;
>
> if (!feature_check_enabled)
> @@ -205,14 +221,7 @@ int zynqmp_pm_feature(const u32 api_id)
> return -ENOMEM;
>
> feature_data->pm_api_id = api_id;
> - smc_arg[0] = PM_SIP_SVC | PM_FEATURE_CHECK;
> - smc_arg[1] = api_id;
> -
> - ret = do_fw_call(smc_arg[0], smc_arg[1], 0, ret_payload);
> - if (ret)
> - ret = -EOPNOTSUPP;
> - else
> - ret = ret_payload[1];
> + ret = do_feature_check_call(api_id, ret_payload);
>
> feature_data->feature_status = ret;
> hash_add(pm_api_features_map, &feature_data->hentry, api_id);

Acked-by: Michal Simek <michal.simek@xilinx.com>

Thanks,
Michal