> -Original Message-
> From: amd-gfx [mailto:amd-gfx-boun...@lists.freedesktop.org] On Behalf
> Of Trigger Huang
> Sent: Thursday, November 17, 2016 12:59 AM
> To: amd-gfx@lists.freedesktop.org
> Cc: Huang, Trigger
> Subject: [PATCH v2] drm/amdgpu: Disable DPM in virtualization
>
> This patch is used for virtualization support. In virtualization,
> only SMU manager is needed, DPM should be disabled. This is a
> use case for commit 2f9346b6f984
> ("drm/amdgpu/powerplay: pp module only enable smu when dpm
> disabled.")
>
> Change in V2, according to Christian's suggestion,
> This patch will not mess with module parameters amdgpu_dpm, but make
> that a dependency for when amdgpu_dpm is evaluated.
>
> Signed-off-by: Trigger Huang
Reviewed-by: Alex Deucher
> ---
> drivers/gpu/drm/amd/amdgpu/amdgpu_powerplay.c | 2 +-
> drivers/gpu/drm/amd/powerplay/amd_powerplay.c | 9 ++---
> 2 files changed, 7 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_powerplay.c
> b/drivers/gpu/drm/amd/amdgpu/amdgpu_powerplay.c
> index e2f0507..fc592c2 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_powerplay.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_powerplay.c
> @@ -184,7 +184,7 @@ static int amdgpu_pp_hw_init(void *handle)
> ret = adev->powerplay.ip_funcs->hw_init(
> adev->powerplay.pp_handle);
>
> - if (amdgpu_dpm != 0)
> + if ((amdgpu_dpm != 0) && !amdgpu_sriov_vf(adev))
> adev->pm.dpm_enabled = true;
>
> return ret;
> diff --git a/drivers/gpu/drm/amd/powerplay/amd_powerplay.c
> b/drivers/gpu/drm/amd/powerplay/amd_powerplay.c
> index 4a4f97b..51a3607 100644
> --- a/drivers/gpu/drm/amd/powerplay/amd_powerplay.c
> +++ b/drivers/gpu/drm/amd/powerplay/amd_powerplay.c
> @@ -911,7 +911,8 @@ static int amd_pp_instance_init(struct amd_pp_init
> *pp_init,
>
> amd_pp->pp_handle = handle;
>
> - if (amdgpu_dpm == 0)
> + if ((amdgpu_dpm == 0)
> + || cgs_is_virtualization_enabled(pp_init->device))
> return 0;
>
> ret = hwmgr_init(pp_init, handle);
> @@ -940,7 +941,8 @@ static int amd_pp_instance_fini(void *handle)
> if (instance == NULL)
> return -EINVAL;
>
> - if (amdgpu_dpm != 0) {
> + if ((amdgpu_dpm != 0)
> + && !cgs_is_virtualization_enabled(instance->smu_mgr-
> >device)) {
> eventmgr_fini(instance->eventmgr);
> hwmgr_fini(instance->hwmgr);
> }
> @@ -1004,7 +1006,8 @@ int amd_powerplay_reset(void *handle)
>
> hw_init_power_state_table(instance->hwmgr);
>
> - if (amdgpu_dpm == 0)
> + if ((amdgpu_dpm == 0)
> + || cgs_is_virtualization_enabled(instance->smu_mgr-
> >device))
> return 0;
>
> if (eventmgr == NULL || eventmgr->pp_eventmgr_init == NULL)
> --
> 2.7.4
>
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