From: Xi Ruoyao <xry111@xry111.site>
To: "Icenowy Zheng" <uwu@icenowy.me>,
"Christian König" <christian.koenig@amd.com>,
"Alex Deucher" <alexander.deucher@amd.com>,
"Pan Xinhui" <Xinhui.Pan@amd.com>,
"David Airlie" <airlied@gmail.com>,
"Daniel Vetter" <daniel@ffwll.ch>,
"Pierre-Eric Pelloux-Prayer" <pierre-eric.pelloux-prayer@amd.com>,
"Huacai Chen" <chenhuacai@kernel.org>,
"WANG Xuerui" <kernel@xen0n.name>
Cc: amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org,
linux-kernel@vger.kernel.org, loongarch@lists.linux.dev
Subject: Re: [PATCH 1/2] drm/amdgpu: make duplicated EOP packet for GFX7/8 have real content
Date: Mon, 17 Jun 2024 23:35:33 +0800 [thread overview]
Message-ID: <e27a5acebe5c7d1e09edbc9dc49f52b672d72988.camel@xry111.site> (raw)
In-Reply-To: <1e5f86991635b9045e91fab6397cda87555f85ff.camel@icenowy.me>
On Mon, 2024-06-17 at 22:30 +0800, Icenowy Zheng wrote:
> > Two consecutive writes to the same bus address are perfectly legal
> > from
> > the PCIe specification and can happen all the time, even without this
> > specific hw workaround.
>
> Yes I know it, and I am not from Loongson, just some user trying to
> mess around it.
There are some purposed "workarounds" like reducing the link speed (from
x16 to x8), tweaking the power management setting, etc. Someone even
claims improving the heat sink of the LS7A chip can help to work around
this issue but I'm really skeptical...
--
Xi Ruoyao <xry111@xry111.site>
School of Aerospace Science and Technology, Xidian University
next prev parent reply other threads:[~2024-06-17 15:35 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-06-17 10:58 [PATCH 0/2] Fixes of AMD GFX7/8 hang on Loongson platforms Icenowy Zheng
2024-06-17 10:58 ` [PATCH 1/2] drm/amdgpu: make duplicated EOP packet for GFX7/8 have real content Icenowy Zheng
2024-06-17 12:35 ` Christian König
2024-06-17 13:03 ` Icenowy Zheng
2024-06-17 13:09 ` Christian König
2024-06-17 13:43 ` Icenowy Zheng
2024-06-17 13:59 ` Christian König
2024-06-17 14:30 ` Icenowy Zheng
[not found] ` <e7a814fc-7b1a-4e32-8868-292be004f920@amd.com>
2024-06-17 14:57 ` Icenowy Zheng
2024-06-17 15:35 ` Xi Ruoyao [this message]
2024-06-17 15:53 ` Christian König
2024-06-17 16:09 ` Icenowy Zheng
2024-06-17 10:58 ` [PATCH 2/2] drm/radeon: repeat the same EOP packet for EOP workaround on CIK Icenowy Zheng
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