From: Rex Zhu <Rex.Zhu@amd.com>
Date: Tue, 18 Sep 2018 10:07:54 +0000 (+0800)
Subject: drm/amd/pp: Honour DC's clock limits on Rv
X-Git-Tag: v5.15~7648^2~20^2~62
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=0fb5da0a9b7b3a256eacf1ace2212ad2342a0728;p=platform%2Fkernel%2Flinux-starfive.git

drm/amd/pp: Honour DC's clock limits on Rv

Honour display's request for min engine clock/memory clock.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---

diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/smu10_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/smu10_hwmgr.c
index 9808bd4..5d1dae2 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/smu10_hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/smu10_hwmgr.c
@@ -552,6 +552,8 @@ static int smu10_dpm_force_dpm_level(struct pp_hwmgr *hwmgr,
 {
 	struct smu10_hwmgr *data = hwmgr->backend;
 	struct amdgpu_device *adev = hwmgr->adev;
+	uint32_t min_sclk = hwmgr->display_config->min_core_set_clock;
+	uint32_t min_mclk = hwmgr->display_config->min_mem_set_clock/100;
 
 	if (hwmgr->smu_version < 0x1E3700) {
 		pr_info("smu firmware version too old, can not set dpm level\n");
@@ -563,6 +565,13 @@ static int smu10_dpm_force_dpm_level(struct pp_hwmgr *hwmgr,
 	    (adev->rev_id >= 8))
 		return 0;
 
+	if (min_sclk < data->gfx_min_freq_limit)
+		min_sclk = data->gfx_min_freq_limit;
+
+	min_sclk /= 100; /* transfer 10KHz to MHz */
+	if (min_mclk < data->clock_table.FClocks[0].Freq)
+		min_mclk = data->clock_table.FClocks[0].Freq;
+
 	switch (level) {
 	case AMD_DPM_FORCED_LEVEL_HIGH:
 	case AMD_DPM_FORCED_LEVEL_PROFILE_PEAK:
@@ -595,18 +604,18 @@ static int smu10_dpm_force_dpm_level(struct pp_hwmgr *hwmgr,
 	case AMD_DPM_FORCED_LEVEL_PROFILE_MIN_SCLK:
 		smum_send_msg_to_smc_with_parameter(hwmgr,
 						PPSMC_MSG_SetHardMinGfxClk,
-						data->gfx_min_freq_limit/100);
+						min_sclk);
 		smum_send_msg_to_smc_with_parameter(hwmgr,
 						PPSMC_MSG_SetSoftMaxGfxClk,
-						data->gfx_min_freq_limit/100);
+						min_sclk);
 		break;
 	case AMD_DPM_FORCED_LEVEL_PROFILE_MIN_MCLK:
 		smum_send_msg_to_smc_with_parameter(hwmgr,
 						PPSMC_MSG_SetHardMinFclkByFreq,
-						SMU10_UMD_PSTATE_MIN_FCLK);
+						min_mclk);
 		smum_send_msg_to_smc_with_parameter(hwmgr,
 						PPSMC_MSG_SetSoftMaxFclkByFreq,
-						SMU10_UMD_PSTATE_MIN_FCLK);
+						min_mclk);
 		break;
 	case AMD_DPM_FORCED_LEVEL_PROFILE_STANDARD:
 		smum_send_msg_to_smc_with_parameter(hwmgr,
@@ -638,12 +647,12 @@ static int smu10_dpm_force_dpm_level(struct pp_hwmgr *hwmgr,
 	case AMD_DPM_FORCED_LEVEL_AUTO:
 		smum_send_msg_to_smc_with_parameter(hwmgr,
 						PPSMC_MSG_SetHardMinGfxClk,
-						data->gfx_min_freq_limit/100);
+						min_sclk);
 		smum_send_msg_to_smc_with_parameter(hwmgr,
 						PPSMC_MSG_SetHardMinFclkByFreq,
 						hwmgr->display_config->num_display > 3 ?
 						SMU10_UMD_PSTATE_PEAK_FCLK :
-						SMU10_UMD_PSTATE_MIN_FCLK);
+						min_mclk);
 
 		smum_send_msg_to_smc_with_parameter(hwmgr,
 						PPSMC_MSG_SetHardMinSocclkByFreq,
@@ -674,10 +683,10 @@ static int smu10_dpm_force_dpm_level(struct pp_hwmgr *hwmgr,
 						data->gfx_min_freq_limit/100);
 		smum_send_msg_to_smc_with_parameter(hwmgr,
 						PPSMC_MSG_SetHardMinFclkByFreq,
-						SMU10_UMD_PSTATE_MIN_FCLK);
+						min_mclk);
 		smum_send_msg_to_smc_with_parameter(hwmgr,
 						PPSMC_MSG_SetSoftMaxFclkByFreq,
-						SMU10_UMD_PSTATE_MIN_FCLK);
+						min_mclk);
 		break;
 	case AMD_DPM_FORCED_LEVEL_MANUAL:
 	case AMD_DPM_FORCED_LEVEL_PROFILE_EXIT: