[Intel-gfx] [PATCH 01/10] drm/i915: Make semaphore updates more precise

2014-06-30 Thread Rodrigo Vivi
From: 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 instr

[Intel-gfx] [PATCH 01/10] drm/i915: Make semaphore updates more precise

2014-05-07 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