✓ CI.checkpatch: success for drm/xe/guc: Resend potentially lost H2G MMIO request (rev2)
Patchwork
patchwork at emeril.freedesktop.org
Wed May 28 18:09:54 UTC 2025
== Series Details ==
Series: drm/xe/guc: Resend potentially lost H2G MMIO request (rev2)
URL : https://patchwork.freedesktop.org/series/149575/
State : success
== Summary ==
+ KERNEL=/kernel
+ git clone https://gitlab.freedesktop.org/drm/maintainer-tools mt
Cloning into 'mt'...
warning: redirecting to https://gitlab.freedesktop.org/drm/maintainer-tools.git/
+ git -C mt rev-list -n1 origin/master
202708c00696422fd217223bb679a353a5936e23
+ cd /kernel
+ git config --global --add safe.directory /kernel
+ git log -n1
commit 9c7f1db52286f2dc67eb003e770fbbcf84cebf05
Author: Michal Wajdeczko <michal.wajdeczko at intel.com>
Date: Wed May 28 11:00:21 2025 +0200
drm/xe/guc: Resend potentially lost H2G MMIO request
There could be a scenario where the VF driver is resuming faster
than the driver PF is able to complete the VF FLR sequence which
includes reset of the VF scratch registers. This may result in
deletion of the ongoing HXG message (it could be either a host
request or a GuC response).
When we detect that HXG message was likey lost (scratch register
with HXG header was zeroed) try to send this request once more
before giving up.
Signed-off-by: Michal Wajdeczko <michal.wajdeczko at intel.com>
Cc: Satyanarayana K V P <satyanarayana.k.v.p at intel.com>
Reviewed-by: Satyanarayana K V P <satyanarayana.k.v.p at intel.com>
+ /mt/dim checkpatch bce15b90200d1d7d4b5ff1a6cac0b43d8bf45319 drm-intel
9c7f1db52286 drm/xe/guc: Resend potentially lost H2G MMIO request
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