[Intel-gfx] [PATCH 11/24] drm/i915: Extract context switch skip logic

Michel Thierry michel.thierry at intel.com
Thu Dec 18 09:10:08 PST 2014


From: Ben Widawsky <benjamin.widawsky at intel.com>

We have some fanciness coming up. This patch just breaks out the logic.

Signed-off-by: Ben Widawsky <ben at bwidawsk.net>
Signed-off-by: Michel Thierry <michel.thierry at intel.com>
---
 drivers/gpu/drm/i915/i915_gem_context.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/gpu/drm/i915/i915_gem_context.c b/drivers/gpu/drm/i915/i915_gem_context.c
index b67d269..a8ff03d 100644
--- a/drivers/gpu/drm/i915/i915_gem_context.c
+++ b/drivers/gpu/drm/i915/i915_gem_context.c
@@ -726,6 +726,16 @@ unpin_out:
 	return ret;
 }
 
+static inline bool should_skip_switch(struct intel_engine_cs *ring,
+				      struct intel_context *from,
+				      struct intel_context *to)
+{
+	if (from == to && !to->remap_slice)
+		return true;
+
+	return false;
+}
+
 /**
  * i915_switch_context() - perform a GPU context switch.
  * @ring: ring for which we'll execute the context switch
-- 
2.1.1



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