Re: [Intel-gfx] [PATCH v2] drm/i915: Optimise VMA lookup slightly

2016-12-15 Thread Chris Wilson
On Thu, Dec 15, 2016 at 04:49:49PM +, Tvrtko Ursulin wrote: > > On 13/12/2016 14:47, Chris Wilson wrote: > >On Tue, Dec 13, 2016 at 02:37:27PM +, Tvrtko Ursulin wrote: > >>From: Tvrtko Ursulin > >> > >>Cast VM pointers before substraction to save the compiler > >>doing a smart one which i

Re: [Intel-gfx] [PATCH v2] drm/i915: Optimise VMA lookup slightly

2016-12-15 Thread Tvrtko Ursulin
On 13/12/2016 14:47, Chris Wilson wrote: On Tue, Dec 13, 2016 at 02:37:27PM +, Tvrtko Ursulin wrote: From: Tvrtko Ursulin Cast VM pointers before substraction to save the compiler doing a smart one which includes multiplication. v2: Only keep the first optimisation and prettify it. (Chri

Re: [Intel-gfx] [PATCH v2] drm/i915: Optimise VMA lookup slightly

2016-12-13 Thread Chris Wilson
On Tue, Dec 13, 2016 at 02:37:27PM +, Tvrtko Ursulin wrote: > From: Tvrtko Ursulin > > Cast VM pointers before substraction to save the compiler > doing a smart one which includes multiplication. > > v2: Only keep the first optimisation and prettify it. (Chris Wilson) > > Signed-off-by: Tvr

[Intel-gfx] [PATCH v2] drm/i915: Optimise VMA lookup slightly

2016-12-13 Thread Tvrtko Ursulin
From: Tvrtko Ursulin Cast VM pointers before substraction to save the compiler doing a smart one which includes multiplication. v2: Only keep the first optimisation and prettify it. (Chris Wilson) Signed-off-by: Tvrtko Ursulin Cc: Chris Wilson --- drivers/gpu/drm/i915/i915_vma.h | 12 +++