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Subject[PATCH 4.19 024/245] drm/amdgpu/powerplay: fix AVFS handling with custom powerplay table
Date
From: Alex Deucher <alexander.deucher@amd.com>

[ Upstream commit 53dbc27ad5a93932ff1892a8e4ef266827d74a0f ]

When a custom powerplay table is provided, we need to update
the OD VDDC flag to avoid AVFS being enabled when it shouldn't be.

Bug: https://bugzilla.kernel.org/show_bug.cgi?id=205393
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c | 7 +++++++
1 file changed, 7 insertions(+)

diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c
index ce459ea4ec3ad..da9e6923fa659 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c
@@ -3591,6 +3591,13 @@ static int vega10_set_power_state_tasks(struct pp_hwmgr *hwmgr,
PP_ASSERT_WITH_CODE(!result,
"Failed to upload PPtable!", return result);

+ /*
+ * If a custom pp table is loaded, set DPMTABLE_OD_UPDATE_VDDC flag.
+ * That effectively disables AVFS feature.
+ */
+ if(hwmgr->hardcode_pp_table != NULL)
+ data->need_update_dpm_table |= DPMTABLE_OD_UPDATE_VDDC;
+
vega10_update_avfs(hwmgr);

data->need_update_dpm_table &= DPMTABLE_OD_UPDATE_VDDC;
--
2.25.1


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