Chris Wilson 9381e2bee8 drm/i915/gt: Invalidate as we write the gen7 breadcrumb ... Still the saga of the hsw live_blt incoherency continues. While it did seem that the invalidate before the breadcrumb had improved the mtbf, nevertheless live_blt still failed. Mika's next idea was to pull the invalidate-stall into the breadcrumb write itself. References: 860afa0868 ("drm/i915/gt: Flush gen7 even harder") References: https://bugs.freedesktop.org/show_bug.cgi?id=112147 Testcase: igt/i915_selftest/live_blt Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com> Acked-by: Mika Kuoppala <mika.kuoppala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191113151956.32242-1-chris@chris-wilson.co.uk		2019-11-13 16:42:10 +00:00
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drm	drm/i915/gt: Invalidate as we write the gen7 breadcrumb	2019-11-13 16:42:10 +00:00
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