: Wednesday, December 20, 2023 10:06 PM
To: Xiao, Jack ; Alex Deucher
Cc: Deucher, Alexander ;
amd-gfx@lists.freedesktop.org; Zhang, Hawking
Subject: Re: [PATCH] drm/amdgpu/gfx11: need acquire mutex before access
CP_VMID_RESET
Well not the reset lock, but there should only be a single reset queue
allel.
Regards,
Jack
-Original Message-
From: Alex Deucher
Sent: Wednesday, December 20, 2023 1:04 AM
To: Xiao, Jack
Cc: amd-gfx@lists.freedesktop.org; Deucher, Alexander ;
Zhang, Hawking
Subject: Re: [PATCH] drm/amdgpu/gfx11: need acquire mutex before access
CP_VMID_RESET
On Tue, Dec 19,
p.org; Deucher, Alexander
; Zhang, Hawking
Subject: Re: [PATCH] drm/amdgpu/gfx11: need acquire mutex before access
CP_VMID_RESET
On Tue, Dec 19, 2023 at 4:30 AM Jack Xiao wrote:
>
> It's required to take the gfx mutex before access to CP_VMID_RESET,
> for there is a race condition
On Tue, Dec 19, 2023 at 4:30 AM Jack Xiao wrote:
>
> It's required to take the gfx mutex before access to CP_VMID_RESET,
> for there is a race condition with CP firmware to write the register.
>
> Signed-off-by: Jack Xiao
> ---
> drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c | 20
>
?
Regards,
Hawking
-Original Message-
From: Xiao, Jack
Sent: Tuesday, December 19, 2023 17:24
To: amd-gfx@lists.freedesktop.org; Deucher, Alexander
; Zhang, Hawking
Cc: Xiao, Jack
Subject: [PATCH] drm/amdgpu/gfx11: need acquire mutex before access
CP_VMID_RESET
It's required to take th
It's required to take the gfx mutex before access to CP_VMID_RESET,
for there is a race condition with CP firmware to write the register.
Signed-off-by: Jack Xiao
---
drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c | 20
1 file changed, 20 insertions(+)
diff --git a/drivers/gpu/drm/
