]> git.karo-electronics.de Git - linux-beck.git/commit
drm/i915: Just clear the mmiodebug before a register access
authorChris Wilson <chris@chris-wilson.co.uk>
Mon, 3 Oct 2016 12:45:14 +0000 (13:45 +0100)
committerChris Wilson <chris@chris-wilson.co.uk>
Mon, 3 Oct 2016 19:59:54 +0000 (20:59 +0100)
commitdda960335e020835f7f1c12760e7f0b525b451e2
tree7386d2cb09b4280f719e50059cad6a76ecbfdddb
parent7f60e200e254cd53ad1bd74a56bdd23e813ac4b7
drm/i915: Just clear the mmiodebug before a register access

When we enable the per-register access mmiodebug, it is to detect which
access is illegal. Reporting on earlier untraced access outside of the
mmiodebug does not help debugging (as the suspicion is immediately put
upon the current register which is not at fault)!

References: https://bugs.freedesktop.org/show_bug.cgi?id=97985
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
Cc: stable@vger.kernel.org
Link: http://patchwork.freedesktop.org/patch/msgid/20161003124516.12388-1-chris@chris-wilson.co.uk
drivers/gpu/drm/i915/intel_uncore.c