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drm/amd/pm: fix possible power mode mismatch between driver and PMFW

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commit bf4823267a817f7c155876a125b94336d7113e77 upstream.

PMFW may boots the ASIC with a different power mode from the system's
real one. Notify PMFW explicitly the power mode the system in. This
is needed only when ACDC switch via gpio is not supported.

Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Kenneth Feng <kenneth.feng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Evan Quan 2023-05-11 15:41:27 +08:00 committed by Greg Kroah-Hartman
parent 595824a450
commit 903e942500
3 changed files with 20 additions and 19 deletions
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18
drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
View File

@ -723,6 +723,24 @@ static int smu_late_init(void *handle)
return ret;
}
/*
* Explicitly notify PMFW the power mode the system in. Since
* the PMFW may boot the ASIC with a different mode.
* For those supporting ACDC switch via gpio, PMFW will
* handle the switch automatically. Driver involvement
* is unnecessary.
*/
if (!smu->dc_controlled_by_gpio) {
ret = smu_set_power_source(smu,
adev->pm.ac_power ? SMU_POWER_SOURCE_AC :
SMU_POWER_SOURCE_DC);
if (ret) {
dev_err(adev->dev, "Failed to switch to %s mode!\n",
adev->pm.ac_power ? "AC" : "DC");
return ret;
}
}
if ((adev->ip_versions[MP1_HWIP][0] == IP_VERSION(13, 0, 1)) ||
(adev->ip_versions[MP1_HWIP][0] == IP_VERSION(13, 0, 3)))
return 0;

20
drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c
View File

@ -3406,26 +3406,8 @@ static int navi10_post_smu_init(struct smu_context *smu)
return 0;
ret = navi10_run_umc_cdr_workaround(smu);
if (ret) {
if (ret)
dev_err(adev->dev, "Failed to apply umc cdr workaround!\n");
return ret;
}
if (!smu->dc_controlled_by_gpio) {
/*
* For Navi1X, manually switch it to AC mode as PMFW
* may boot it with DC mode.
*/
ret = smu_v11_0_set_power_source(smu,
adev->pm.ac_power ?
SMU_POWER_SOURCE_AC :
SMU_POWER_SOURCE_DC);
if (ret) {
dev_err(adev->dev, "Failed to switch to %s mode!\n",
adev->pm.ac_power ? "AC" : "DC");
return ret;
}
}
return ret;
}

1
drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_7_ppt.c
View File

@ -1767,6 +1767,7 @@ static const struct pptable_funcs smu_v13_0_7_ppt_funcs = {
.enable_mgpu_fan_boost = smu_v13_0_7_enable_mgpu_fan_boost,
.get_power_limit = smu_v13_0_7_get_power_limit,
.set_power_limit = smu_v13_0_set_power_limit,
.set_power_source = smu_v13_0_set_power_source,
.get_power_profile_mode = smu_v13_0_7_get_power_profile_mode,
.set_power_profile_mode = smu_v13_0_7_set_power_profile_mode,
.set_tool_table_location = smu_v13_0_set_tool_table_location,