Chris Wilson cf66b8a0ba drm/i915/execlists: Apply a full mb before execution for Braswell ... Braswell is really picky about having our writes posted to memory before we execute or else the GPU may see stale values. A wmb() is insufficient as it only ensures the writes are visible to other cores, we need a full mb() to ensure the writes are in memory and visible to the GPU. The most frequent failure in flushing before execution is that we see stale PTE values and execute the wrong pages. References: 987abd5c62 ("drm/i915/execlists: Force write serialisation into context image vs execution") Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: stable@vger.kernel.org Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20181206084431.9805-3-chris@chris-wilson.co.uk (cherry picked from commit 490b8c65b9) Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>		2018-12-12 09:06:14 +02:00
..
drm	drm/i915/execlists: Apply a full mb before execution for Braswell	2018-12-12 09:06:14 +02:00
host1x	gpu: host1x: Detach Host1x from IOMMU DMA domain on arm32	2018-09-26 17:11:14 +02:00
ipu-v3	media: v4l: mediabus: Recognise CSI-2 D-PHY and C-PHY	2018-10-04 16:06:15 -04:00
vga	vga_switcheroo: Fix missing gpu_bound call at audio client registration	2018-11-05 14:56:21 +01:00
Makefile