[Intel-gfx] [PATCH 27/56] drm/i915: Extract context switch skip logic
Ben Widawsky
benjamin.widawsky at intel.com
Sat May 10 05:59:22 CEST 2014
We have some fanciness coming up. This patch just breaks out the logic.
Signed-off-by: Ben Widawsky <ben at bwidawsk.net>
---
drivers/gpu/drm/i915/i915_gem_context.c | 12 +++++++++++-
1 file changed, 11 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/i915_gem_context.c b/drivers/gpu/drm/i915/i915_gem_context.c
index f2dc17a..7eb4091 100644
--- a/drivers/gpu/drm/i915/i915_gem_context.c
+++ b/drivers/gpu/drm/i915/i915_gem_context.c
@@ -594,6 +594,16 @@ mi_set_context(struct intel_ring_buffer *ring,
return ret;
}
+static inline bool should_skip_switch(struct intel_ring_buffer *ring,
+ struct i915_hw_context *from,
+ struct i915_hw_context *to)
+{
+ if (from == to && from->last_ring == ring && !to->remap_slice)
+ return true;
+
+ return false;
+}
+
static int do_switch(struct intel_ring_buffer *ring,
struct i915_hw_context *to)
{
@@ -608,7 +618,7 @@ static int do_switch(struct intel_ring_buffer *ring,
BUG_ON(!i915_gem_obj_is_pinned(from->obj));
}
- if (from == to && from->last_ring == ring && !to->remap_slice)
+ if (should_skip_switch(ring, from, to))
return 0;
/* Trying to pin first makes error handling easier. */
--
1.9.2
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