On Mon, Aug 31, 2015 at 06:27:40PM +0200, Michał Winiarski wrote: > On each call to gen8_alloc_va_range_3lvl we're allocating temporary > bitmaps needed for error handling. Unfortunately, when we increase > address space size (48b ppgtt) we do additional (512 - 4) calls to > kcalloc, increasing latency between exec and actual start of execution > on the GPU. Let's just do a single kcalloc and setup proper offsets in > an array, we can also drop the size from free_gen8_temp_bitmaps since > it's no longer needed. > > Cc: Mika Kuoppala <mika.kuoppala@xxxxxxxxxxxxxxx> > Cc: Michel Thierry <michel.thierry@xxxxxxxxx> > Signed-off-by: Michał Winiarski <michal.winiarski@xxxxxxxxx> Whilst you are here, mind using GFP_TEMPORARY as well? -Chris -- Chris Wilson, Intel Open Source Technology Centre _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
