[AMD Official Use Only - Internal Distribution Only]

Reviewed-by: Kevin Wang <[email protected]>
But it's better to optimize the flow of control in is_support_sw_smu()

Best Regards,
Kevin


________________________________
From: amd-gfx <[email protected]> on behalf of Jack Zhang 
<[email protected]>
Sent: Monday, December 2, 2019 7:05 PM
To: [email protected] <[email protected]>
Cc: Zhang, Jack (Jian) <[email protected]>
Subject: [PATCH] amd/amdgpu/sriov swSMU disable for sriov

For boards greater than ARCTURUS, and under sriov platform,
swSMU is not supported because smu ip block is commented at
guest driver.

Generally for sriov, initialization of smu is moved to host driver.
Thus, smu sw_init and hw_init will not be executed at guest driver.

Without sw structure being initialized in guest driver, swSMU cannot
declare to be supported.

Signed-off-by: Jack Zhang <[email protected]>
---
 drivers/gpu/drm/amd/powerplay/amdgpu_smu.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c 
b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
index 36001a4..0b8a53b 100644
--- a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
+++ b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
@@ -531,7 +531,10 @@ bool is_support_sw_smu(struct amdgpu_device *adev)
         if (adev->asic_type == CHIP_VEGA20)
                 return (amdgpu_dpm == 2) ? true : false;
         else if (adev->asic_type >= CHIP_ARCTURUS)
-               return true;
+               if (amdgpu_sriov_vf(adev))
+                       return false;
+               else
+                       return true;
         else
                 return false;
 }
--
2.7.4

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