On 2024-10-22 15:50, Alex Deucher wrote:
> Some devices do not support fullscreen 3D.
>
> v2: Make the check generic.
>
> Fixes: 336568de918e ("drm/amdgpu/swsmu: default to fullscreen 3D profile for
> dGPUs")
> Signed-off-by: Alex Deucher <[email protected]>
> Cc: Kenneth Feng <[email protected]>
> Cc: Lijo Lazar <[email protected]>
> ---
> drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c | 11 ++++++++++-
> 1 file changed, 10 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
> b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
> index accc96a03bd9..8d4aee4e2287 100644
> --- a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
> +++ b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
> @@ -1236,6 +1236,14 @@ static void smu_init_xgmi_plpd_mode(struct smu_context
> *smu)
> }
> }
>
> +static bool smu_is_workload_profile_available(struct smu_context *smu,
> + u32 profile)
> +{
> + if (profile >= PP_SMC_POWER_PROFILE_COUNT)
> + return false;
> + return smu->workload_map && smu->workload_map[profile].valid_mapping;
> +}
> +
> static int smu_sw_init(struct amdgpu_ip_block *ip_block)
> {
> struct amdgpu_device *adev = ip_block->adev;
> @@ -1267,7 +1275,8 @@ static int smu_sw_init(struct amdgpu_ip_block *ip_block)
> smu->workload_prority[PP_SMC_POWER_PROFILE_COMPUTE] = 5;
> smu->workload_prority[PP_SMC_POWER_PROFILE_CUSTOM] = 6;
>
> - if (smu->is_apu)
> + if (smu->is_apu ||
> + !smu_is_workload_profile_available(smu,
> PP_SMC_POWER_PROFILE_FULLSCREEN3D))
> smu->workload_mask = 1 <<
> smu->workload_prority[PP_SMC_POWER_PROFILE_BOOTUP_DEFAULT];
> else
> smu->workload_mask = 1 <<
> smu->workload_prority[PP_SMC_POWER_PROFILE_FULLSCREEN3D];
FWIW, PP_SMC_POWER_PROFILE_BOOTUP_DEFAULT isn't really suitable for compositing
with an APU either (certainly not while the machine is connected to AC, though
I'm getting good battery life even forcing the compute profile).
--
Earthling Michel Dänzer \ GNOME / Xwayland / Mesa developer
https://redhat.com \ Libre software enthusiast
