From: Mario Limonciello <mario.limonciello@amd.com>
Date: Thu, 9 Oct 2025 20:59:06 +0000 (-0500)
Subject: drm/amd: Save and restore all limit types
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=3cd7ceee9a17a0db7f8e3bf260a3762bd4586ac1;p=thirdparty%2Fkernel%2Flinux.git

drm/amd: Save and restore all limit types

Vangogh has separate limits for default PPT and fast PPT. Add
infrastructure to save both of these limits and restore both of them.

Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---

diff --git a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
index a55f94b91bc92..ea27c087ecf18 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
@@ -508,11 +508,14 @@ static void smu_restore_dpm_user_profile(struct smu_context *smu)
 	/* Enable restore flag */
 	smu->user_dpm_profile.flags |= SMU_DPM_USER_PROFILE_RESTORE;
 
-	/* set the user dpm power limit */
-	if (smu->user_dpm_profile.power_limit) {
-		ret = smu_set_power_limit(smu, SMU_DEFAULT_PPT_LIMIT, smu->current_power_limit);
+	/* set the user dpm power limits */
+	for (int i = SMU_DEFAULT_PPT_LIMIT; i < SMU_LIMIT_TYPE_COUNT; i++) {
+		if (!smu->user_dpm_profile.power_limits[i])
+			continue;
+		ret = smu_set_power_limit(smu, i,
+					  smu->user_dpm_profile.power_limits[i]);
 		if (ret)
-			dev_err(smu->adev->dev, "Failed to set power limit value\n");
+			dev_err(smu->adev->dev, "Failed to set %d power limit value\n", i);
 	}
 
 	/* set the user dpm clock configurations */
@@ -2979,11 +2982,13 @@ static int smu_set_power_limit(void *handle, uint32_t limit_type, uint32_t limit
 
 	if (smu->ppt_funcs->set_power_limit) {
 		ret = smu->ppt_funcs->set_power_limit(smu, limit_type, limit);
-		if (!ret && !(smu->user_dpm_profile.flags & SMU_DPM_USER_PROFILE_RESTORE))
-			smu->user_dpm_profile.power_limit = limit;
+		if (ret)
+			return ret;
+		if (!(smu->user_dpm_profile.flags & SMU_DPM_USER_PROFILE_RESTORE))
+			smu->user_dpm_profile.power_limits[limit_type] = limit;
 	}
 
-	return ret;
+	return 0;
 }
 
 static int smu_print_smuclk_levels(struct smu_context *smu, enum smu_clk_type clk_type, char *buf)
diff --git a/drivers/gpu/drm/amd/pm/swsmu/inc/amdgpu_smu.h b/drivers/gpu/drm/amd/pm/swsmu/inc/amdgpu_smu.h
index 582c186d8b623..32387e8c138b9 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/inc/amdgpu_smu.h
+++ b/drivers/gpu/drm/amd/pm/swsmu/inc/amdgpu_smu.h
@@ -212,6 +212,7 @@ enum smu_power_src_type {
 enum smu_ppt_limit_type {
 	SMU_DEFAULT_PPT_LIMIT = 0,
 	SMU_FAST_PPT_LIMIT,
+	SMU_LIMIT_TYPE_COUNT,
 };
 
 enum smu_ppt_limit_level {
@@ -231,7 +232,7 @@ enum smu_memory_pool_size {
 
 struct smu_user_dpm_profile {
 	uint32_t fan_mode;
-	uint32_t power_limit;
+	uint32_t power_limits[SMU_LIMIT_TYPE_COUNT];
 	uint32_t fan_speed_pwm;
 	uint32_t fan_speed_rpm;
 	uint32_t flags;