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| author | Matthew Auld <matthew.auld@intel.com> | 2023-08-24 17:04:45 +0100 |
|---|---|---|
| committer | Rodrigo Vivi <rodrigo.vivi@intel.com> | 2023-12-21 11:40:28 -0500 |
| commit | 1da0702c1701c2e1441d86facd9fbb5e73fa374b (patch) | |
| tree | 9565b84cfc62ba9a928e683770de2b20b19aa158 /drivers/gpu/drm/xe/xe_uc.h | |
| parent | 9c0d779fc67bd1810f74c22e219f4af24a4e1e29 (diff) | |
| download | lwn-1da0702c1701c2e1441d86facd9fbb5e73fa374b.tar.gz lwn-1da0702c1701c2e1441d86facd9fbb5e73fa374b.zip | |
drm/xe: nuke GuC on unload
On PVC unloading followed by reloading the module often results in a
completely dead machine (seems to be plaguing CI). Resetting the GuC
like we do at load seems to cure it at least when locally testing this.
v2:
- Move pc_fini into guc_fini. We want to do the GuC reset just after
calling pc_fini, otherwise we encounter communication failures. It
also seems like a good idea to do the reset before we start releasing
the various other GuC resources. In the case of pc_fini there is an
explicit stop, but for other stuff like logs, ads, ctb there is not.
References: https://gitlab.freedesktop.org/drm/xe/kernel/-/issues/542
References: https://gitlab.freedesktop.org/drm/xe/kernel/-/issues/597
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Diffstat (limited to 'drivers/gpu/drm/xe/xe_uc.h')
| -rw-r--r-- | drivers/gpu/drm/xe/xe_uc.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/xe/xe_uc.h b/drivers/gpu/drm/xe/xe_uc.h index 42219b361df5..4109ae7028af 100644 --- a/drivers/gpu/drm/xe/xe_uc.h +++ b/drivers/gpu/drm/xe/xe_uc.h @@ -12,6 +12,7 @@ int xe_uc_init(struct xe_uc *uc); int xe_uc_init_hwconfig(struct xe_uc *uc); int xe_uc_init_post_hwconfig(struct xe_uc *uc); int xe_uc_init_hw(struct xe_uc *uc); +int xe_uc_fini_hw(struct xe_uc *uc); void xe_uc_gucrc_disable(struct xe_uc *uc); int xe_uc_reset_prepare(struct xe_uc *uc); void xe_uc_stop_prepare(struct xe_uc *uc); |