On Mon, Aug 31, 2015 at 07:42:34PM +0100, Chris Wilson wrote:
> On Mon, Aug 31, 2015 at 06:59:40PM +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
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
On Mon, Aug 31, 2015 at 06:59:40PM +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
