Commit dd590f68 authored by Lionel Landwerlin's avatar Lionel Landwerlin Committed by Chris Wilson
Browse files

drm/i915/perf: Add preemption check while waiting for OA 



While we're waiting for the OA configuration to apply, let's give a
chance to other contexts that might need to run other workloads.

Signed-off-by: default avatarLionel Landwerlin <lionel.g.landwerlin@intel.com>
Suggested-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20191114140224.21818-1-lionel.g.landwerlin@intel.com
parent dea397e8

drivers/gpu/drm/i915/i915_perf.c

+2 −0
Original line number Diff line number Diff line
@@ -1777,6 +1777,8 @@ static int alloc_noa_wait(struct i915_perf_stream *stream) 
	*cs++ = MI_MATH_ADD;

	*cs++ = MI_MATH_STOREINV(MI_MATH_REG(JUMP_PREDICATE), MI_MATH_REG_CF);



	*cs++ = MI_ARB_CHECK;



	/*

	 * Transfer the result into the predicate register to be used for the

	 * predicated jump.

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