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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2016-04-27 09:02:01 +0100 |
|---|---|---|
| committer | Jani Nikula <jani.nikula@intel.com> | 2016-05-23 11:17:13 +0300 |
| commit | e32da7adaf3c511e7e6ffa0d5b680e07201630b8 (patch) | |
| tree | 01f4b2e9dce97143311ad00b4189d5781c0f40c9 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | 5fbd0418eef283269f2cc1b90b63d88f20c887bf (diff) | |
drm/i915: Protect gen7 irq_seqno_barrier with uncore lock
Faced with sporadic machine hangs on gen7, that mimic the issue of
concurrent writes to the same cacheline and seem to start with
commit 9b9ed3093613 (drm/i915: Remove forcewake dance from seqno/irq
barrier on legacy gen6+), let us restore the spinlock around the mmio
read.
Fixes: 9b9ed3093613 (drm/i915: Remove forcewake dance from seqno/irq...)
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1461744121-27051-1-git-send-email-chris@chris-wilson.co.uk
Tested-by: Mika Kuoppala <mika.kuoppala@intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
(cherry picked from commit bcbdb6d01150dcc1769ddc9baaaf7f102f27f919)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions