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From e2cb039fb1234388e2c77ef78e353fce4a1df100 Mon Sep 17 00:00:00 2001
From: Rex Zhu <Rex.Zhu@amd.com>
Date: Tue, 22 Mar 2016 14:21:18 +0800
Subject: [PATCH 0954/1110] drm/amd/powerplay: Disable Spread Spectrum on DPM 0
on baffin as SPLL Shut Down feature is enabled.
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Acked-by: Flora Cui <Flora.Cui@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/amd/powerplay/hwmgr/polaris10_hwmgr.c | 6 ++++++
drivers/gpu/drm/amd/powerplay/inc/hardwaremanager.h | 1 +
2 files changed, 7 insertions(+)
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/polaris10_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/polaris10_hwmgr.c
index b77d7aa..715bc3d 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/polaris10_hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/polaris10_hwmgr.c
@@ -1248,6 +1248,9 @@ static int polaris10_populate_all_graphic_levels(struct pp_hwmgr *hwmgr)
if (i > 1)
levels[i].DeepSleepDivId = 0;
}
+ if (phm_cap_enabled(hwmgr->platform_descriptor.platformCaps,
+ PHM_PlatformCaps_SPLLShutdownSupport))
+ data->smc_state_table.GraphicsLevel[0].SclkSetting.SSc_En = 0;
data->smc_state_table.GraphicsLevel[0].EnabledForActivity = 1;
data->smc_state_table.GraphicsDpmLevelCount =
@@ -2602,6 +2605,9 @@ int polaris10_set_features_platform_caps(struct pp_hwmgr *hwmgr)
phm_cap_unset(hwmgr->platform_descriptor.platformCaps,
PHM_PlatformCaps_TCPRamping);
+ if (hwmgr->chip_id == CHIP_POLARIS11)
+ phm_cap_set(hwmgr->platform_descriptor.platformCaps,
+ PHM_PlatformCaps_SPLLShutdownSupport);
return 0;
}
diff --git a/drivers/gpu/drm/amd/powerplay/inc/hardwaremanager.h b/drivers/gpu/drm/amd/powerplay/inc/hardwaremanager.h
index 040d3f7..56f712c 100644
--- a/drivers/gpu/drm/amd/powerplay/inc/hardwaremanager.h
+++ b/drivers/gpu/drm/amd/powerplay/inc/hardwaremanager.h
@@ -211,6 +211,7 @@ enum phm_platform_caps {
PHM_PlatformCaps_ClockStretcher,
PHM_PlatformCaps_TablelessHardwareInterface,
PHM_PlatformCaps_EnableDriverEVV,
+ PHM_PlatformCaps_SPLLShutdownSupport,
PHM_PlatformCaps_Max
};
--
2.7.4
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