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drm/amd/pm: Skip redundant UCLK restore in smu_v13_0_6

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Only reapply UCLK soft limits during PP_OD_RESTORE_DEFAULT when the
current max differs from the DPM table max. This avoids redundant
SMC updates and prevents -EINVAL on restore when no change is needed.

Fixes: b7a9003445 ("drm/amd/pm: Allow setting max UCLK on SMU v13.0.6")
Signed-off-by: Asad Kamal <asad.kamal@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 17f11bbbc7)
This commit is contained in:
Asad Kamal 2026-03-18 13:48:30 +08:00 committed by Alex Deucher
parent 37c2caa167
commit cdbc3b62cf
1 changed files with 11 additions and 8 deletions
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19
drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_6_ppt.c
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@ -2122,6 +2122,7 @@ static int smu_v13_0_6_usr_edit_dpm_table(struct smu_context *smu,
{
struct smu_dpm_context *smu_dpm = &(smu->smu_dpm);
struct smu_13_0_dpm_context *dpm_context = smu_dpm->dpm_context;
struct smu_dpm_table *uclk_table = &dpm_context->dpm_tables.uclk_table;
struct smu_umd_pstate_table *pstate_table = &smu->pstate_table;
uint32_t min_clk;
uint32_t max_clk;
@ -2221,14 +2222,16 @@ static int smu_v13_0_6_usr_edit_dpm_table(struct smu_context *smu,
if (ret)
return ret;
min_clk = SMU_DPM_TABLE_MIN(
&dpm_context->dpm_tables.uclk_table);
max_clk = SMU_DPM_TABLE_MAX(
&dpm_context->dpm_tables.uclk_table);
ret = smu_v13_0_6_set_soft_freq_limited_range(
smu, SMU_UCLK, min_clk, max_clk, false);
if (ret)
return ret;
if (SMU_DPM_TABLE_MAX(uclk_table) !=
pstate_table->uclk_pstate.curr.max) {
min_clk = SMU_DPM_TABLE_MIN(&dpm_context->dpm_tables.uclk_table);
max_clk = SMU_DPM_TABLE_MAX(&dpm_context->dpm_tables.uclk_table);
ret = smu_v13_0_6_set_soft_freq_limited_range(smu,
SMU_UCLK, min_clk,
max_clk, false);
if (ret)
return ret;
}
smu_v13_0_reset_custom_level(smu);
}
break;