-gfx list
Subject: RE: [PATCH] drm/amdgpu: restrict debugfs register access under SR-IOV
Hi Yintian
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
index c0f9a651dc06..4f9780aabf5a 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
+++ b
al Message-
From: amd-gfx On Behalf Of Tao, Yintian
Sent: Thursday, April 9, 2020 11:23 PM
To: Alex Deucher
Cc: Deucher, Alexander ; Koenig, Christian
; amd-gfx list
Subject: RE: [PATCH] drm/amdgpu: restrict debugfs register access under SR-IOV
Hi Alex
Many thanks for your review.
Hi Alex
Many thanks for your review.
-Original Message-
From: Alex Deucher
Sent: 2020年4月9日 23:21
To: Tao, Yintian
Cc: Koenig, Christian ; Deucher, Alexander
; amd-gfx list
Subject: Re: [PATCH] drm/amdgpu: restrict debugfs register access under SR-IOV
On Thu, Apr 9, 2020 at 10:54
On Thu, Apr 9, 2020 at 10:54 AM Yintian Tao wrote:
>
> Under bare metal, there is no more else to take
> care of the GPU register access through MMIO.
> Under Virtualization, to access GPU register is
> implemented through KIQ during run-time due to
> world-switch.
>
> Therefore, under SR-IOV user
Under bare metal, there is no more else to take
care of the GPU register access through MMIO.
Under Virtualization, to access GPU register is
implemented through KIQ during run-time due to
world-switch.
Therefore, under SR-IOV user can only access
debugfs to r/w GPU registers when meets all
three
Subject: Re: [PATCH] drm/amdgpu: restrict debugfs register access under SR-IOV
Am 09.04.20 um 08:01 schrieb Yintian Tao:
> Under bare metal, there is no more else to take care of the GPU
> register access through MMIO.
> Under Virtualization, to access GPU register is implemented through
>
Am 09.04.20 um 08:01 schrieb Yintian Tao:
Under bare metal, there is no more else to take
care of the GPU register access through MMIO.
Under Virtualization, to access GPU register is
implemented through KIQ during run-time due to
world-switch.
Therefore, under SR-IOV user can only access
debugf
Under bare metal, there is no more else to take
care of the GPU register access through MMIO.
Under Virtualization, to access GPU register is
implemented through KIQ during run-time due to
world-switch.
Therefore, under SR-IOV user can only access
debugfs to r/w GPU registers when meets all
three
