From: Rex Zhu <Rex.Zhu@amd.com>
Date: Thu, 10 May 2018 19:51:09 +0800
Subject: drm/amd/pp: Fix performance drop on Fiji
Git-commit: 7fc6311b174091e3283c28381e58bed3d12b6591
Patch-mainline: v4.17-rc5
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166
The performance drop if the default TDP more than 256 Watt
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
drivers/gpu/drm/amd/powerplay/hwmgr/smu7_powertune.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_powertune.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_powertune.c
@@ -852,12 +852,10 @@ int smu7_set_power_limit(struct pp_hwmgr
{
struct smu7_hwmgr *data = (struct smu7_hwmgr *)(hwmgr->backend);
- n = (n & 0xff) << 8;
-
if (data->power_containment_features &
POWERCONTAINMENT_FEATURE_PkgPwrLimit)
return smum_send_msg_to_smc_with_parameter(hwmgr,
- PPSMC_MSG_PkgPwrSetLimit, n);
+ PPSMC_MSG_PkgPwrSetLimit, n<<8);
return 0;
}