Tested Device passthrough with polaris(rx 570), the patch had no effect.
With or without the patch I could only do passthrough 3 times before the
host throws
IOMMU error.
[ 210.762150] vfio-pci 0000:01:00.1: can't change power state from D0 to
D3hot (config space inaccessible)
[ 210.762732] vfio-pci 0000:01:00.0: can't change power state from D0 to
D3hot (config space inaccessible)
[ 210.899735] AMD-Vi: Completion-Wait loop timed out
[ 211.022824] AMD-Vi: Completion-Wait loop timed out
[ 211.145434] AMD-Vi: Completion-Wait loop timed out
[ 211.268250] AMD-Vi: Completion-Wait loop timed out
[ 211.778593] iommu ivhd0: AMD-Vi: Event logged [IOTLB_INV_TIMEOUT
device=01:00.0 address=0x107d5fb50]
[ 212.780494] iommu ivhd0: AMD-Vi: Event logged [IOTLB_INV_TIMEOUT
device=01:00.0 address=0x107d5fb90]
[ 212.781060] iommu ivhd0: AMD-Vi: Event logged [IOTLB_INV_TIMEOUT
device=01:00.0 address=0x107d5fbb0]
Regards,
Nirmoy
On 7/23/20 4:22 PM, Nirmoy wrote:
Hi Alex,
On 7/23/20 3:59 PM, Alex Deucher wrote:
Can you check and make sure this doesn't break polaris or some other
generation?
Do you mean breaking device passthrough or normal operation ? I have a
rx 570,
I can test on that.
Regards,
Nirmoy
Alex
On Wed, Jul 15, 2020 at 1:12 AM Quan, Evan <Evan.Quan@xxxxxxx> wrote:
[AMD Official Use Only - Internal Distribution Only]
Acked-by: Evan Quan <evan.quan@xxxxxxx>
-----Original Message-----
From: Nirmoy Das <nirmoy.aiemd@xxxxxxxxx>
Sent: Friday, July 10, 2020 10:51 PM
To: amd-gfx@xxxxxxxxxxxxxxxxxxxxx
Cc: Deucher, Alexander <Alexander.Deucher@xxxxxxx>; Quan, Evan
<Evan.Quan@xxxxxxx>; Das, Nirmoy <Nirmoy.Das@xxxxxxx>
Subject: [PATCH] drm/amdgpu: do not disable SMU on vm reboot
For passthrough device, we do baco reset after 1st vm boot so
if we disable SMU on 1st VM shutdown baco reset will fail for
2nd vm boot.
Signed-off-by: Nirmoy Das <nirmoy.das@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
index d1adbc45d37b..07be61ce969a 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
@@ -1178,7 +1178,8 @@ amdgpu_pci_shutdown(struct pci_dev *pdev)
* unfortunately we can't detect certain
* hypervisors so just do this all the time.
*/
-adev->mp1_state = PP_MP1_STATE_UNLOAD;
+if (!amdgpu_passthrough(adev))
+adev->mp1_state = PP_MP1_STATE_UNLOAD;
amdgpu_device_ip_suspend(adev);
adev->mp1_state = PP_MP1_STATE_NONE;
}
--
2.27.0
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