[PATCH] drm/amd/pp: Fix performance drop on Fiji

[Zhang, Jerry]

Reviewed-by: Junwei Zhang <Jerry.Zhang at amd.com>

Regards,
Jerry(Junwei Zhang)

________________________________________
From: amd-gfx <amd-gfx-bounces at lists.freedesktop.org> 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

_______________________________________________
amd-gfx mailing list
amd-gfx at lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx