From 8c12672ee2d386924c65c3bbb30bf0da415b2918 Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Thu, 7 Apr 2016 07:29:14 +0100 Subject: [PATCH] drm/i915: Refactor gen8 semaphore offset calculation We reuse the same calculation into two macros, and I want to add a third user. Time to refactor. Signed-off-by: Chris Wilson Reviewed-by: Joonas Lahtinen Link: http://patchwork.freedesktop.org/patch/msgid/1460010558-10705-5-git-send-email-chris@chris-wilson.co.uk --- drivers/gpu/drm/i915/intel_ringbuffer.h | 11 +++++------ 1 file changed, 5 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.h b/drivers/gpu/drm/i915/intel_ringbuffer.h index 18074ab..98eadfa 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.h +++ b/drivers/gpu/drm/i915/intel_ringbuffer.h @@ -52,16 +52,15 @@ struct intel_hw_status_page { /* seqno size is actually only a uint32, but since we plan to use MI_FLUSH_DW to * do the writes, and that must have qw aligned offsets, simply pretend it's 8b. */ -#define i915_semaphore_seqno_size sizeof(uint64_t) +#define gen8_semaphore_seqno_size sizeof(uint64_t) +#define GEN8_SEMAPHORE_OFFSET(__from, __to) \ + (((__from) * I915_NUM_ENGINES + (__to)) * gen8_semaphore_seqno_size) #define GEN8_SIGNAL_OFFSET(__ring, to) \ (i915_gem_obj_ggtt_offset(dev_priv->semaphore_obj) + \ - ((__ring)->id * I915_NUM_ENGINES * i915_semaphore_seqno_size) + \ - (i915_semaphore_seqno_size * (to))) - + GEN8_SEMAPHORE_OFFSET((__ring)->id, (to))) #define GEN8_WAIT_OFFSET(__ring, from) \ (i915_gem_obj_ggtt_offset(dev_priv->semaphore_obj) + \ - ((from) * I915_NUM_ENGINES * i915_semaphore_seqno_size) + \ - (i915_semaphore_seqno_size * (__ring)->id)) + GEN8_SEMAPHORE_OFFSET(from, (__ring)->id)) #define GEN8_RING_SEMAPHORE_INIT(e) do { \ if (!dev_priv->semaphore_obj) { \ -- 2.7.4