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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Smu7 ASICs support memory activity report also by reading register directly.<o:p></o:p></p>
<p class="MsoNormal">But for Vega10, there is not any SMC message and metrics table for that. And there is no information about any register related with that.<o:p></o:p></p>
<p class="MsoNormal">So, we cannot get the memory activity on Vega10. It’s not a regression.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Regards,<o:p></o:p></p>
<p class="MsoNormal">Evan<o:p></o:p></p>
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<p class="MsoNormal"><b>From:</b> Deucher, Alexander <Alexander.Deucher@amd.com> <br>
<b>Sent:</b> Friday, June 21, 2019 10:19 PM<br>
<b>To:</b> Russell, Kent <Kent.Russell@amd.com>; Quan, Evan <Evan.Quan@amd.com>; amd-gfx@lists.freedesktop.org<br>
<b>Subject:</b> Re: [PATCH] drm/amd/powerplay: no memory activity support on Vega10<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">Maybe it's dependent on the SMU firwmare version?<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">Alex<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="color:black">From:</span></b><span style="color:black"> Russell, Kent<br>
<b>Sent:</b> Friday, June 21, 2019 9:54 AM<br>
<b>To:</b> Deucher, Alexander; Quan, Evan; <a href="mailto:amd-gfx@lists.freedesktop.org">
amd-gfx@lists.freedesktop.org</a><br>
<b>Subject:</b> RE: [PATCH] drm/amd/powerplay: no memory activity support on Vega10</span>
<o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="xmsonormal">It works on my Fiji card. Maybe Vega10 functionality is just broken in this regard?<o:p></o:p></p>
<p class="xmsonormal"> <o:p></o:p></p>
<p class="xmsonormal">Kent<o:p></o:p></p>
<p class="xmsonormal"> <o:p></o:p></p>
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<p class="xmsonormal"><b>From:</b> amd-gfx <<a href="mailto:amd-gfx-bounces@lists.freedesktop.org">amd-gfx-bounces@lists.freedesktop.org</a>>
<b>On Behalf Of </b>Deucher, Alexander<br>
<b>Sent:</b> Friday, June 21, 2019 9:42 AM<br>
<b>To:</b> Quan, Evan <<a href="mailto:Evan.Quan@amd.com">Evan.Quan@amd.com</a>>;
<a href="mailto:amd-gfx@lists.freedesktop.org">amd-gfx@lists.freedesktop.org</a><br>
<b>Subject:</b> Re: [PATCH] drm/amd/powerplay: no memory activity support on Vega10<o:p></o:p></p>
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<p class="xmsonormal"> <o:p></o:p></p>
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<p class="xmsonormal"><span style="font-size:12.0pt;color:black">Is this supported on smu7 parts as well? Might be better to just enable it on the specific asics that support it. I think it might just be vega20.</span><o:p></o:p></p>
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<p class="xmsonormal"><span style="font-size:12.0pt;color:black"> </span><o:p></o:p></p>
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<p class="xmsonormal"><span style="font-size:12.0pt;color:black">Alex</span><o:p></o:p></p>
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<p class="xmsonormal"><b><span style="color:black">From:</span></b><span style="color:black"> amd-gfx <<a href="mailto:amd-gfx-bounces@lists.freedesktop.org">amd-gfx-bounces@lists.freedesktop.org</a>> on behalf of Evan Quan <<a href="mailto:evan.quan@amd.com">evan.quan@amd.com</a>><br>
<b>Sent:</b> Thursday, June 20, 2019 10:07 PM<br>
<b>To:</b> <a href="mailto:amd-gfx@lists.freedesktop.org">amd-gfx@lists.freedesktop.org</a><br>
<b>Cc:</b> Quan, Evan<br>
<b>Subject:</b> [PATCH] drm/amd/powerplay: no memory activity support on Vega10</span>
<o:p></o:p></p>
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<p class="xmsonormal"> <o:p></o:p></p>
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<p class="xmsonormal">Make mem_busy_percent sysfs interface invisible on Vega10.<br>
<br>
Change-Id: Ie39c3217b497a110b0b16e1b08033029bdcf2fc8<br>
Signed-off-by: Evan Quan <<a href="mailto:evan.quan@amd.com">evan.quan@amd.com</a>><br>
---<br>
drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c | 6 ++++--<br>
1 file changed, 4 insertions(+), 2 deletions(-)<br>
<br>
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c<br>
index 7ed84736ccc9..bcf6e089dc2e 100644<br>
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c<br>
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c<br>
@@ -2945,7 +2945,8 @@ int amdgpu_pm_sysfs_init(struct amdgpu_device *adev)<br>
return ret;<br>
}<br>
/* APU does not have its own dedicated memory */<br>
- if (!(adev->flags & AMD_IS_APU)) {<br>
+ if (!(adev->flags & AMD_IS_APU) &&<br>
+ (adev->asic_type != CHIP_VEGA10)) {<br>
ret = device_create_file(adev->dev,<br>
&dev_attr_mem_busy_percent);<br>
if (ret) {<br>
@@ -3025,7 +3026,8 @@ void amdgpu_pm_sysfs_fini(struct amdgpu_device *adev)<br>
device_remove_file(adev->dev,<br>
&dev_attr_pp_od_clk_voltage);<br>
device_remove_file(adev->dev, &dev_attr_gpu_busy_percent);<br>
- if (!(adev->flags & AMD_IS_APU))<br>
+ if (!(adev->flags & AMD_IS_APU) &&<br>
+ (adev->asic_type != CHIP_VEGA10))<br>
device_remove_file(adev->dev, &dev_attr_mem_busy_percent);<br>
if (!(adev->flags & AMD_IS_APU))<br>
device_remove_file(adev->dev, &dev_attr_pcie_bw);<br>
-- <br>
2.21.0<br>
<br>
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