Re: [PATCH 2/2 v2] drm/amd/pm: check specific index for aldebaran

[Lazar, Lijo]

On 5/14/2024 12:28 PM, Jesse Zhang wrote:
> To avoid warning problems, drop index and
> use PPSMC_MSG_GfxDriverReset instead of index for aldebaran.
> 
> Signed-off-by: Jesse Zhang <jesse.zh...@amd.com>
> Suggested-by: Lijo Lazar <lijo.la...@amd.com>
> ---
>  drivers/gpu/drm/amd/pm/swsmu/smu13/aldebaran_ppt.c | 13 +++++++------
>  1 file changed, 7 insertions(+), 6 deletions(-)
> 
> diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu13/aldebaran_ppt.c 
> b/drivers/gpu/drm/amd/pm/swsmu/smu13/aldebaran_ppt.c
> index a22eb6bbb05e..d671314c46c8 100644
> --- a/drivers/gpu/drm/amd/pm/swsmu/smu13/aldebaran_ppt.c
> +++ b/drivers/gpu/drm/amd/pm/swsmu/smu13/aldebaran_ppt.c
> @@ -1880,17 +1880,18 @@ static int aldebaran_mode1_reset(struct smu_context 
> *smu)
>  
>  static int aldebaran_mode2_reset(struct smu_context *smu)
>  {
> -     int ret = 0, index;
> +     int ret = 0;
>       struct amdgpu_device *adev = smu->adev;
>       int timeout = 10;
>  
> -     index = smu_cmn_to_asic_specific_index(smu, CMN2ASIC_MAPPING_MSG,
> -                                             SMU_MSG_GfxDeviceDriverReset);
> -     if (index < 0 )
> -             return -EINVAL;
>       mutex_lock(&smu->message_lock);
>       if (smu->smc_fw_version >= 0x00441400) {
> -             ret = smu_cmn_send_msg_without_waiting(smu, (uint16_t)index, 
> SMU_RESET_MODE_2);

For clarity, original comment is - retain this as it is, only replace
index with PPSMC_MSG_GfxDriverReset.

Changing this to msg_with_param() breaks the reset sequence.

Thanks,
Lijo

> +             ret = smu_cmn_send_smc_msg_with_param(smu, 
> PPSMC_MSG_GfxDriverReset,
> +                                                             
> SMU_RESET_MODE_2, NULL);
> +             if (ret) {
> +                     dev_err(smu->adev->dev, "Failed to mode2 reset!\n");
> +                     goto out;
> +             }
>               /* This is similar to FLR, wait till max FLR timeout */
>               msleep(100);
>               dev_dbg(smu->adev->dev, "restore config space...\n");