[PATCH v2 2/2] drm/amdgpu: clean up the suspend_complete

[Liang, Prike]

[AMD Official Use Only - AMD Internal Distribution Only]

Ping on this series.

Thanks,
Prike

> -----Original Message-----
> From: Liang, Prike <Prike.Liang at amd.com>
> Sent: Monday, October 14, 2024 3:49 PM
> To: amd-gfx at lists.freedesktop.org
> Cc: Deucher, Alexander <Alexander.Deucher at amd.com>; Lazar, Lijo
> <Lijo.Lazar at amd.com>; Liang, Prike <Prike.Liang at amd.com>
> Subject: [PATCH v2 2/2] drm/amdgpu: clean up the suspend_complete
>
> To check the status of S3 suspend completion, use the PM core
> pm_suspend_global_flags bit(1) to detect S3 abort events. Therefore, clean up the
> AMDGPU driver's private flag suspend_complete.
>
> Signed-off-by: Prike Liang <Prike.Liang at amd.com>
> ---
>  drivers/gpu/drm/amd/amdgpu/amdgpu.h     | 2 --
>  drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 2 --
>  drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c   | 4 ++--
>  drivers/gpu/drm/amd/amdgpu/soc15.c      | 7 ++-----
>  drivers/gpu/drm/amd/amdgpu/soc21.c      | 2 +-
>  5 files changed, 5 insertions(+), 12 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
> b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
> index 48c9b9b06905..9b35763ae0a7 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
> @@ -1111,8 +1111,6 @@ struct amdgpu_device {
>       bool                            in_s3;
>       bool                            in_s4;
>       bool                            in_s0ix;
> -     /* indicate amdgpu suspension status */
> -     bool                            suspend_complete;
>
>       enum pp_mp1_state               mp1_state;
>       struct amdgpu_doorbell_index doorbell_index; diff --git
> a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
> b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
> index 680e44fdee6e..78972151b970 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
> @@ -2501,7 +2501,6 @@ static int amdgpu_pmops_suspend(struct device *dev)
>       struct drm_device *drm_dev = dev_get_drvdata(dev);
>       struct amdgpu_device *adev = drm_to_adev(drm_dev);
>
> -     adev->suspend_complete = false;
>       if (amdgpu_acpi_is_s0ix_active(adev))
>               adev->in_s0ix = true;
>       else if (amdgpu_acpi_is_s3_active(adev)) @@ -2516,7 +2515,6 @@ static
> int amdgpu_pmops_suspend_noirq(struct device *dev)
>       struct drm_device *drm_dev = dev_get_drvdata(dev);
>       struct amdgpu_device *adev = drm_to_adev(drm_dev);
>
> -     adev->suspend_complete = true;
>       if (amdgpu_acpi_should_gpu_reset(adev))
>               return amdgpu_asic_reset(adev);
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
> b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
> index be320d753507..ba8e66744376 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
> @@ -3276,8 +3276,8 @@ static int gfx_v9_0_cp_gfx_start(struct amdgpu_device
> *adev)
>        * confirmed that the APU gfx10/gfx11 needn't such update.
>        */
>       if (adev->flags & AMD_IS_APU &&
> -                     adev->in_s3 && !adev->suspend_complete) {
> -             DRM_INFO(" Will skip the CSB packet resubmit\n");
> +                     adev->in_s3 && !pm_resume_via_firmware()) {
> +             DRM_INFO("Will skip the CSB packet resubmit\n");
>               return 0;
>       }
>       r = amdgpu_ring_alloc(ring, gfx_v9_0_get_csb_size(adev) + 4 + 3); diff --git
> a/drivers/gpu/drm/amd/amdgpu/soc15.c b/drivers/gpu/drm/amd/amdgpu/soc15.c
> index 12ff6cf568dc..d9d11131a744 100644
> --- a/drivers/gpu/drm/amd/amdgpu/soc15.c
> +++ b/drivers/gpu/drm/amd/amdgpu/soc15.c
> @@ -584,13 +584,10 @@ static bool soc15_need_reset_on_resume(struct
> amdgpu_device *adev)
>        *    performing pm core test.
>        */
>       if (adev->flags & AMD_IS_APU && adev->in_s3 &&
> -                     !pm_resume_via_firmware()) {
> -             adev->suspend_complete = false;
> +                     !pm_resume_via_firmware())
>               return true;
> -     } else {
> -             adev->suspend_complete = true;
> +     else
>               return false;
> -     }
>  }
>
>  static int soc15_asic_reset(struct amdgpu_device *adev) diff --git
> a/drivers/gpu/drm/amd/amdgpu/soc21.c b/drivers/gpu/drm/amd/amdgpu/soc21.c
> index c4b950e75133..7a47a21ef00f 100644
> --- a/drivers/gpu/drm/amd/amdgpu/soc21.c
> +++ b/drivers/gpu/drm/amd/amdgpu/soc21.c
> @@ -904,7 +904,7 @@ static bool soc21_need_reset_on_resume(struct
> amdgpu_device *adev)
>        * 2) S3 suspend got aborted and TOS is active.
>        */
>       if (!(adev->flags & AMD_IS_APU) && adev->in_s3 &&
> -         !adev->suspend_complete) {
> +         !pm_resume_via_firmware()) {
>               sol_reg1 = RREG32_SOC15(MP0, 0, regMP0_SMN_C2PMSG_81);
>               msleep(100);
>               sol_reg2 = RREG32_SOC15(MP0, 0, regMP0_SMN_C2PMSG_81);
> --
> 2.34.1