mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-17 07:54:54 +08:00
825f272895
In order to avoid accessing GPU registers while GPU is suspended cancel the hangcheck work before calling intel_suspend_complete which actually puts the GPU to suspend. Otherwise hangcheck might do MMIO reads to a suspended GPU. Placement before intel_guc_suspend is imitated from i915_drm_suspend which cancels the work at i915_gem_suspend, to keep the functions similar. On VLV systems, namely BYT, this was causing an error during runtime suspend cycle: [drm:vlv_check_no_gt_access [i915]] *ERROR* GT register access while GT waking disabled Testcase: igt/pm_rpm/basic-rte Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=93121 Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Imre Deak <imre.deak@intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Link: http://patchwork.freedesktop.org/patch/msgid/1449669373-8588-1-git-send-email-joonas.lahtinen@linux.intel.com Reviewed-by: Imre Deak <imre.deak@intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Imre Deak <imre.deak@intel.com> |
||
|---|---|---|
| .. | ||
| drm | ||
| host1x | ||
| ipu-v3 | ||
| vga | ||
| Makefile | ||