[PATCH V2 2/2] drm/amd/pm: restore user customized OD settings properly for Sienna Cichlid

[Evan Quan]

Properly restore those committed and non-committed user customized OD
settings.

Change-Id: I25396df0b3ecdd7a0d9fc77ed220b0abf1fde020
Signed-off-by: Evan Quan <evan.quan at amd.com>
---
 .../amd/pm/swsmu/smu11/sienna_cichlid_ppt.c   | 37 ++++++++++++++-----
 1 file changed, 28 insertions(+), 9 deletions(-)

diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c
index e0638dc3f617..7efbdca2d3b1 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c
@@ -1954,18 +1954,29 @@ static int sienna_cichlid_set_default_od_settings(struct smu_context *smu)
 		(OverDriveTable_t *)smu->smu_table.overdrive_table;
 	OverDriveTable_t *boot_od_table =
 		(OverDriveTable_t *)smu->smu_table.boot_overdrive_table;
+	OverDriveTable_t *user_od_table =
+		(OverDriveTable_t *)smu->smu_table.user_overdrive_table;
 	int ret = 0;
 
+	/*
+	 * For S3/S4/Runpm resume, no need to setup those overdrive tables again as
+	 *   - either they already have the default OD settings got during cold bootup
+	 *   - or they have some user customized OD settings which cannot be overwritten
+	 */
+	if (smu->adev->in_suspend)
+		return 0;
+
 	ret = smu_cmn_update_table(smu, SMU_TABLE_OVERDRIVE,
-				   0, (void *)od_table, false);
+				   0, (void *)boot_od_table, false);
 	if (ret) {
 		dev_err(smu->adev->dev, "Failed to get overdrive table!\n");
 		return ret;
 	}
 
-	memcpy(boot_od_table, od_table, sizeof(OverDriveTable_t));
+	sienna_cichlid_dump_od_table(smu, boot_od_table);
 
-	sienna_cichlid_dump_od_table(smu, od_table);
+	memcpy(od_table, boot_od_table, sizeof(OverDriveTable_t));
+	memcpy(user_od_table, boot_od_table, sizeof(OverDriveTable_t));
 
 	return 0;
 }
@@ -2128,13 +2139,20 @@ static int sienna_cichlid_od_edit_dpm_table(struct smu_context *smu,
 		fallthrough;
 
 	case PP_OD_COMMIT_DPM_TABLE:
-		sienna_cichlid_dump_od_table(smu, od_table);
+		if (memcmp(od_table, table_context->user_overdrive_table, sizeof(OverDriveTable_t))) {
+			sienna_cichlid_dump_od_table(smu, od_table);
+			ret = smu_cmn_update_table(smu, SMU_TABLE_OVERDRIVE, 0, (void *)od_table, true);
+			if (ret) {
+				dev_err(smu->adev->dev, "Failed to import overdrive table!\n");
+				return ret;
+			}
+			memcpy(table_context->user_overdrive_table, od_table, sizeof(OverDriveTable_t));
+			smu->user_dpm_profile.user_od = true;
 
-		ret = smu_cmn_update_table(smu, SMU_TABLE_OVERDRIVE,
-					   0, (void *)od_table, true);
-		if (ret) {
-			dev_err(smu->adev->dev, "Failed to import overdrive table!\n");
-			return ret;
+			if (!memcmp(table_context->user_overdrive_table,
+				    table_context->boot_overdrive_table,
+				    sizeof(OverDriveTable_t)))
+				smu->user_dpm_profile.user_od = false;
 		}
 		break;
 
@@ -3902,6 +3920,7 @@ static const struct pptable_funcs sienna_cichlid_ppt_funcs = {
 	.set_soft_freq_limited_range = smu_v11_0_set_soft_freq_limited_range,
 	.set_default_od_settings = sienna_cichlid_set_default_od_settings,
 	.od_edit_dpm_table = sienna_cichlid_od_edit_dpm_table,
+	.restore_user_od_settings = smu_v11_0_restore_user_od_settings,
 	.run_btc = sienna_cichlid_run_btc,
 	.set_power_source = smu_v11_0_set_power_source,
 	.get_pp_feature_mask = smu_cmn_get_pp_feature_mask,
-- 
2.29.0