Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit a194b8cb authored by Tvrtko Ursulin's avatar Tvrtko Ursulin
Browse files

drm/i915: Waterproof verification of gen9 forcewake table ranges 



We have to make sure there are no holes in the table in Gen9.

Signed-off-by: default avatarTvrtko Ursulin <tvrtko.ursulin@intel.com>
Suggested-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/1479388435-12062-1-git-send-email-tvrtko.ursulin@linux.intel.com
parent 08c4d7fc

drivers/gpu/drm/i915/intel_uncore.c

+2 −0
Original line number Diff line number Diff line
@@ -647,6 +647,8 @@ intel_fw_table_check(struct drm_i915_private *dev_priv) 
	num_ranges = dev_priv->uncore.fw_domains_table_entries;



	for (i = 0, prev = -1; i < num_ranges; i++, ranges++) {

		WARN_ON_ONCE(IS_GEN9(dev_priv) &&

			     (prev + 1) != (s32)ranges->start);

		WARN_ON_ONCE(prev >= (s32)ranges->start);

		prev = ranges->start;

		WARN_ON_ONCE(prev >= (s32)ranges->end);