Chris Wilson a7980a640c drm/i915: Apply a cond_resched() to the saturated signaler ... If the engine is continually completing nops, we can saturate the signaler and keep it working indefinitely. This angers the NMI watchdog! A good example is to disable semaphores on snb and run igt/gem_exec_nop - the parallel, multi-engine workloads are more than sufficient to hog the CPU, preventing the system from even processing ICMP echo replies. v2: Tvrtko dug into cond_resched() on x86 and found that it only depended upon preempt_count and not tif_need_resched() - which means that we would always call schedule() at that point. Fixes: c81d46138d ("drm/i915: Convert trace-irq to the breadcrumb waiter") Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Mika Kuoppala <mika.kuoppala@intel.com> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170404120531.10737-1-chris@chris-wilson.co.uk Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>		2017-04-04 13:48:21 +01:00
..
drm	drm/i915: Apply a cond_resched() to the saturated signaler	2017-04-04 13:48:21 +01:00
host1x	gpu: host1x: Set OF node for new host1x devices	2017-01-30 11:47:44 +01:00
ipu-v3	gpu: ipu-v3: only set non-zero AXI ID for IC when PRG is absent	2017-03-16 10:14:49 +01:00
vga	Pointer for Markus's image conversion work.	2017-03-14 15:07:33 +01:00
Makefile