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Subject[PATCH 4.19 027/245] drm/amdgpu/powerplay/smu7: fix AVFS handling with custom powerplay table
Date
From: Alex Deucher <alexander.deucher@amd.com>

[ Upstream commit 901245624c7812b6c95d67177bae850e783b5212 ]

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/smu7_hwmgr.c | 7 +++++++
1 file changed, 7 insertions(+)

diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c
index 72c0a2ae2dd4f..058898b321b8a 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c
@@ -3970,6 +3970,13 @@ static int smu7_set_power_state_tasks(struct pp_hwmgr *hwmgr, const void *input)
"Failed to populate and upload SCLK MCLK DPM levels!",
result = tmp_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_smu7_dpm_table |= DPMTABLE_OD_UPDATE_VDDC;
+
tmp_result = smu7_update_avfs(hwmgr);
PP_ASSERT_WITH_CODE((0 == tmp_result),
"Failed to update avfs voltages!",
--
2.25.1


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