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drm/amd/pm: Don't clear SI SMC table when setting power limit

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There is no reason to clear the SMC table.
We also don't need to recalculate the power limit then.

Fixes: 841686df9f ("drm/amdgpu: add SI DPM support (v4)")
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Timur Kristóf <timur.kristof@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Timur Kristóf
2026-01-19 21:36:23 +01:00
committed by Alex Deucher
parent bbcad5a889
commit e214d62625
1 changed files with 0 additions and 10 deletions
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10
drivers/gpu/drm/amd/pm/legacy-dpm/si_dpm.c
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@@ -2273,8 +2273,6 @@ static int si_populate_smc_tdp_limits(struct amdgpu_device *adev,
if (scaling_factor == 0)
return -EINVAL;
memset(smc_table, 0, sizeof(SISLANDS_SMC_STATETABLE));
ret = si_calculate_adjusted_tdp_limits(adev,
false, /* ??? */
adev->pm.dpm.tdp_adjustment,
@@ -2328,16 +2326,8 @@ static int si_populate_smc_tdp_limits_2(struct amdgpu_device *adev,
if (ni_pi->enable_power_containment) {
SISLANDS_SMC_STATETABLE *smc_table = &si_pi->smc_statetable;
u32 scaling_factor = si_get_smc_power_scaling_factor(adev);
int ret;
memset(smc_table, 0, sizeof(SISLANDS_SMC_STATETABLE));
smc_table->dpm2Params.NearTDPLimit =
cpu_to_be32(si_scale_power_for_smc(adev->pm.dpm.near_tdp_limit_adjusted, scaling_factor) * 1000);
smc_table->dpm2Params.SafePowerLimit =
cpu_to_be32(si_scale_power_for_smc((adev->pm.dpm.near_tdp_limit_adjusted * SISLANDS_DPM2_TDP_SAFE_LIMIT_PERCENT) / 100, scaling_factor) * 1000);
ret = amdgpu_si_copy_bytes_to_smc(adev,
(si_pi->state_table_start +
offsetof(SISLANDS_SMC_STATETABLE, dpm2Params) +