From: Alex Deucher <alexdeucher@gmail.com>
To: dri-devel@lists.freedesktop.org
Cc: Alex Deucher <alexander.deucher@amd.com>, Rex Zhu <Rex.Zhu@amd.com>
Subject: [PATCH] drm/amd/powerplay: SCLK will have a big drop with low VDDC when PPlib was enabled.
Date: Fri, 13 May 2016 14:36:33 -0400 [thread overview]
Message-ID: <1463164596-4853-1-git-send-email-alexander.deucher@amd.com> (raw)
From: Rex Zhu <Rex.Zhu@amd.com>
SMC uses CurrSclkPllRange structure to keep track of what range of
PLL SCLK is sitting on. Driver overwrites this value to 0 because
it's part of DPM table and driver doesn't program this.
This change will set this field to 0xFF every time there's a
init SMC table call.
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/amd/powerplay/hwmgr/polaris10_hwmgr.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/polaris10_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/polaris10_hwmgr.c
index 93768fa..94b2a73 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/polaris10_hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/polaris10_hwmgr.c
@@ -2091,7 +2091,7 @@ static int polaris10_init_smc_table(struct pp_hwmgr *hwmgr)
"Failed to populate Clock Stretcher Data Table!",
return result);
}
-
+ table->CurrSclkPllRange = 0xff;
table->GraphicsVoltageChangeEnable = 1;
table->GraphicsThermThrottleEnable = 1;
table->GraphicsInterval = 1;
@@ -2184,6 +2184,7 @@ static int polaris10_init_smc_table(struct pp_hwmgr *hwmgr)
CONVERT_FROM_HOST_TO_SMC_UL(table->SmioMask1);
CONVERT_FROM_HOST_TO_SMC_UL(table->SmioMask2);
CONVERT_FROM_HOST_TO_SMC_UL(table->SclkStepSize);
+ CONVERT_FROM_HOST_TO_SMC_UL(table->CurrSclkPllRange);
CONVERT_FROM_HOST_TO_SMC_US(table->TemperatureLimitHigh);
CONVERT_FROM_HOST_TO_SMC_US(table->TemperatureLimitLow);
CONVERT_FROM_HOST_TO_SMC_US(table->VoltageResponseTime);
--
2.5.5
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next reply other threads:[~2016-05-13 18:36 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-13 18:36 Alex Deucher [this message]
2016-05-13 18:36 ` [PATCH] drm/amd/powerplay: fix NULL point check error Alex Deucher
2016-05-13 18:36 ` [PATCH] drm/amd/powerplay: move asic unrelated function to hwmgr.c Alex Deucher
2016-05-13 18:36 ` [PATCH] drm/amdgpu: create fence slab once when amdgpu module init Alex Deucher
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