Re: [Intel-gfx] [PATCH 04/13] drm/i915: Make semaphore updates more precise

2014-04-30 Thread Daniel Vetter
On Tue, Apr 29, 2014 at 02:52:31PM -0700, Ben Widawsky wrote: > With the ring mask we now have an easy way to know the number of rings > in the system, and therefore can accurately predict the number of dwords > to emit for semaphore signalling. This was not possible (easily) > previously. > > The

[Intel-gfx] [PATCH 04/13] drm/i915: Make semaphore updates more precise

2014-04-29 Thread Ben Widawsky
With the ring mask we now have an easy way to know the number of rings in the system, and therefore can accurately predict the number of dwords to emit for semaphore signalling. This was not possible (easily) previously. There should be no functional impact, simply fewer instructions emitted. Whi

Re: [Intel-gfx] [PATCH 04/13] drm/i915: Make semaphore updates more precise

2014-02-24 Thread Ville Syrjälä
On Wed, Feb 19, 2014 at 10:19:17PM -0800, Ben Widawsky wrote: > With the ring mask we now have an easy way to know the number of rings > in the system, and therefore can accurately predict the number of dwords > to emit for semaphore signalling. This was not possible (easily) > previously. > > The

[Intel-gfx] [PATCH 04/13] drm/i915: Make semaphore updates more precise

2014-02-19 Thread Ben Widawsky
With the ring mask we now have an easy way to know the number of rings in the system, and therefore can accurately predict the number of dwords to emit for semaphore signalling. This was not possible (easily) previously. There should be no functional impact, simply fewer instructions emitted. Whi

Re: [Intel-gfx] [PATCH 04/13] drm/i915: Make semaphore updates more precise

2014-02-11 Thread Ville Syrjälä
On Tue, Feb 11, 2014 at 08:08:27AM -0800, Ben Widawsky wrote: > On Thu, Jan 30, 2014 at 01:25:42PM +0200, Ville Syrjälä wrote: > > On Wed, Jan 29, 2014 at 11:55:24AM -0800, Ben Widawsky wrote: > diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c > b/drivers/gpu/drm/i915/intel_ringbuffer.c > inde

Re: [Intel-gfx] [PATCH 04/13] drm/i915: Make semaphore updates more precise

2014-02-11 Thread Ben Widawsky
On Thu, Jan 30, 2014 at 01:25:42PM +0200, Ville Syrjälä wrote: > On Wed, Jan 29, 2014 at 11:55:24AM -0800, Ben Widawsky wrote: > > With the ring mask we now have an easy way to know the number of rings > > in the system, and therefore can accurately predict the number of dwords > > to emit for sema

Re: [Intel-gfx] [PATCH 04/13] drm/i915: Make semaphore updates more precise

2014-01-30 Thread Ville Syrjälä
On Wed, Jan 29, 2014 at 11:55:24AM -0800, Ben Widawsky wrote: > With the ring mask we now have an easy way to know the number of rings > in the system, and therefore can accurately predict the number of dwords > to emit for semaphore signalling. This was not possible (easily) > previously. > > The

[Intel-gfx] [PATCH 04/13] drm/i915: Make semaphore updates more precise

2014-01-29 Thread Ben Widawsky
With the ring mask we now have an easy way to know the number of rings in the system, and therefore can accurately predict the number of dwords to emit for semaphore signalling. This was not possible (easily) previously. There should be no functional impact, simply fewer instructions emitted. Whi