Reviewed-by: Junwei Zhang <Jerry.Zhang at amd.com>
Regards,
Jerry(Junwei Zhang)
________________________________________
From: amd-gfx <amd-gfx-bounces@xxxxxxxxxxxxxxxxxxxxx> on behalf of Rex Zhu <Rex.Zhu at amd.com>
Sent: Thursday, May 10, 2018 7:59:10 PM
To: amd-gfx at lists.freedesktop.org
Cc: Zhu, Rex
Subject: [PATCH] drm/amd/pp: Fix performance drop on Fiji
the performance drop happened on default TDP more than 256 Watt
Signed-off-by: Rex Zhu <Rex.Zhu at amd.com>
---
drivers/gpu/drm/amd/powerplay/hwmgr/smu7_powertune.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_powertune.c b/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_powertune.c
index a264e0c..99b29ff 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_powertune.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_powertune.c
@@ -1042,12 +1042,10 @@ int smu7_set_power_limit(struct pp_hwmgr *hwmgr, uint32_t n)
{
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;
}
--
1.9.1
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