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authorChris Wilson <chris@chris-wilson.co.uk>2019-02-28 11:20:33 +0100
committerChris Wilson <chris@chris-wilson.co.uk>2019-02-28 12:07:56 +0100
commit32eb6bcfdda9dad240cf6a22fda2b3418b1a1b8e (patch)
treeb8d37fcf09299b0f0edd9317479336e04a921156 /kernel/time/tick-broadcast-hrtimer.c
parentdrm/i915: Report engines are idle if already parked (diff)
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drm/i915: Make request allocation caches global
As kmem_caches share the same properties (size, allocation/free behaviour) for all potential devices, we can use global caches. While this potential has worse fragmentation behaviour (one can argue that different devices would have different activity lifetimes, but you can also argue that activity is temporal across the system) it is the default behaviour of the system at large to amalgamate matching caches. The benefit for us is much reduced pointer dancing along the frequent allocation paths. v2: Defer shrinking until after a global grace period for futureproofing multiple consumers of the slab caches, similar to the current strategy for avoiding shrinking too early. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190228102035.5857-1-chris@chris-wilson.co.uk
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