RE: [PATCH] drm/amdgpu: remove perf level dpm in one-VF

["Sheng, Wenhui" <Wenhui.Sheng@xxxxxxx>]

[AMD Official Use Only - Internal Distribution Only]

[AMD Official Use Only - Internal Distribution Only]

 

Hi Kevin,

 

At least 3  SMU messages not supported in one-VF mode , which could break the node power_dpm_force_performance_level functionality

 

SMU_MSG_SetSoftMaxByFreq
SMU_MSG_SetSoftMinByFreq

SMU_MSG_TransferTableDram2Smu

 

Brs

Wenhui

From: Wang, Kevin(Yang) <Kevin1.Wang@xxxxxxx>
Sent: Friday, June 12, 2020 7:04 PM
To: Sheng, Wenhui <Wenhui.Sheng@xxxxxxx>; amd-gfx@xxxxxxxxxxxxxxxxxxxxx
Subject: Re: [PATCH] drm/amdgpu: remove perf level dpm in one-VF

 

[AMD Official Use Only - Internal Distribution Only]

 

which smu message will break this node work on navi12 asic?

 

Best Regards,

Kevin

---

From: amd-gfx <amd-gfx-bounces@xxxxxxxxxxxxxxxxxxxxx> on behalf of Wenhui Sheng <Wenhui.Sheng@xxxxxxx>
Sent: Friday, June 12, 2020 5:30 PM
To: amd-gfx@xxxxxxxxxxxxxxxxxxxxx <amd-gfx@xxxxxxxxxxxxxxxxxxxxx>
Cc: Sheng, Wenhui <Wenhui.Sheng@xxxxxxx>
Subject: [PATCH] drm/amdgpu: remove perf level dpm in one-VF

 

On Navi12 platform, node power_dpm_force_performance_level
doesn't work correctly in one-VF mode.

Signed-off-by: Wenhui Sheng <Wenhui.Sheng@xxxxxxx>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
index 395ddbe2461c..4e7b579afe0b 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
@@ -1877,7 +1877,7 @@ static ssize_t amdgpu_set_thermal_throttling_logging(struct device *dev,
 
 static struct amdgpu_device_attr amdgpu_device_attrs[] = {
         AMDGPU_DEVICE_ATTR_RW(power_dpm_state,                          ATTR_FLAG_BASIC|ATTR_FLAG_ONEVF),
-       AMDGPU_DEVICE_ATTR_RW(power_dpm_force_performance_level,        ATTR_FLAG_BASIC|ATTR_FLAG_ONEVF),
+       AMDGPU_DEVICE_ATTR_RW(power_dpm_force_performance_level,        ATTR_FLAG_BASIC),
         AMDGPU_DEVICE_ATTR_RO(pp_num_states,                            ATTR_FLAG_BASIC),
         AMDGPU_DEVICE_ATTR_RO(pp_cur_state,                             ATTR_FLAG_BASIC),
         AMDGPU_DEVICE_ATTR_RW(pp_force_state,                           ATTR_FLAG_BASIC),
--
2.17.1

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