[PATCH] drm/amd/powerplay: no memory activity support on Vega10

[Russell, Kent]

It works on my Fiji card. Maybe Vega10 functionality is just broken in this regard?

Kent

From: amd-gfx <amd-gfx-bounces at lists.freedesktop.org> On Behalf Of Deucher, Alexander
Sent: Friday, June 21, 2019 9:42 AM
To: Quan, Evan <Evan.Quan at amd.com>; amd-gfx at lists.freedesktop.org
Subject: Re: [PATCH] drm/amd/powerplay: no memory activity support on Vega10

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.

Alex
________________________________
From: amd-gfx <amd-gfx-bounces at lists.freedesktop.org<mailto:amd-gfx-bounces at lists.freedesktop.org>> on behalf of Evan Quan <evan.quan at amd.com<mailto:evan.quan at amd.com>>
Sent: Thursday, June 20, 2019 10:07 PM
To: amd-gfx at lists.freedesktop.org<mailto:amd-gfx at lists.freedesktop.org>
Cc: Quan, Evan
Subject: [PATCH] drm/amd/powerplay: no memory activity support on Vega10

Make mem_busy_percent sysfs interface invisible on Vega10.

Change-Id: Ie39c3217b497a110b0b16e1b08033029bdcf2fc8
Signed-off-by: Evan Quan <evan.quan at amd.com<mailto:evan.quan at amd.com>>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
index 7ed84736ccc9..bcf6e089dc2e 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
@@ -2945,7 +2945,8 @@ int amdgpu_pm_sysfs_init(struct amdgpu_device *adev)
                 return ret;
         }
         /* APU does not have its own dedicated memory */
-       if (!(adev->flags & AMD_IS_APU)) {
+       if (!(adev->flags & AMD_IS_APU) &&
+            (adev->asic_type != CHIP_VEGA10)) {
                 ret = device_create_file(adev->dev,
                                 &dev_attr_mem_busy_percent);
                 if (ret) {
@@ -3025,7 +3026,8 @@ void amdgpu_pm_sysfs_fini(struct amdgpu_device *adev)
                 device_remove_file(adev->dev,
                                 &dev_attr_pp_od_clk_voltage);
         device_remove_file(adev->dev, &dev_attr_gpu_busy_percent);
-       if (!(adev->flags & AMD_IS_APU))
+       if (!(adev->flags & AMD_IS_APU) &&
+            (adev->asic_type != CHIP_VEGA10))
                 device_remove_file(adev->dev, &dev_attr_mem_busy_percent);
         if (!(adev->flags & AMD_IS_APU))
                 device_remove_file(adev->dev, &dev_attr_pcie_bw);
--
2.21.0

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