Cmnt: [SRU][J:linux-bluefield][PATCH v1 1/1] UBUNTU: SAUCE: mlxbf-ptm: add thermal envelope debugfs node

[Bartlomiej Zolnierkiewicz]

Hi Jitendra,

On Wed, Sep 6, 2023 at 5:19 PM Jitendra Lanka <jlanka at nvidia.com> wrote:
>
> BugLink: https://bugs.launchpad.net/bugs/2034594
>
> Add a new read-only debugfs node called temp_envelope
> that gets the current temperature envelope.

Please add your Signed-off-by: line to the commit description.

--
Best regards,
Bartlomiej

> ---
>  drivers/platform/mellanox/mlxbf-ptm.c | 12 ++++++++++++
>  1 file changed, 12 insertions(+)
>
> diff --git a/drivers/platform/mellanox/mlxbf-ptm.c b/drivers/platform/mellanox/mlxbf-ptm.c
> index 59ac99695825..26f883bf71f3 100644
> --- a/drivers/platform/mellanox/mlxbf-ptm.c
> +++ b/drivers/platform/mellanox/mlxbf-ptm.c
> @@ -28,6 +28,7 @@
>  #define MLNX_PTM_GET_CUR_PPROFILE       0x8200010D
>  #define MLNX_PTM_GET_DDR_TTHROTTLE      0x8200010E
>  #define MLNX_PTM_GET_DDR_TEMP_EVT_CTR   0x8200010F
> +#define MLNX_PTM_GET_TEMP_ENVELOPE     0x82000110
>
>  #define MLNX_POWER_ERROR               300
>
> @@ -156,6 +157,15 @@ static int power_envelope_show(void *data, u64 *val)
>  DEFINE_SIMPLE_ATTRIBUTE(power_envelope_fops,
>                         power_envelope_show, NULL, "%llu\n");
>
> +static int temp_envelope_show(void *data, u64 *val)
> +{
> +       *val = smc_call0(MLNX_PTM_GET_TEMP_ENVELOPE);
> +
> +       return 0;
> +}
> +DEFINE_SIMPLE_ATTRIBUTE(temp_envelope_fops,
> +                       temp_envelope_show, NULL, "%llu\n");
> +
>  static int atx_status_show(void *data, u64 *val)
>  {
>         *val = smc_call0(MLNX_PTM_GET_ATX_PWR_STATE);
> @@ -227,6 +237,8 @@ static int __init mlxbf_ptm_init(void)
>                             NULL, &error_status_fops);
>         debugfs_create_file("power_envelope", 0444, status,
>                             NULL, &power_envelope_fops);
> +       debugfs_create_file("temp_envelope", 0444, status,
> +                           NULL, &temp_envelope_fops);
>         debugfs_create_file("atx_power_available", 0444, status,
>                             NULL, &atx_status_fops);
>         debugfs_create_file("active_power_profile", 0444, status,
> --
> 2.30.1