[PATCH 27/27] semprio

Chris Wilson chris at chris-wilson.co.uk
Sun Jan 20 14:36:19 UTC 2019


---
 drivers/gpu/drm/i915/i915_request.c   | 3 +++
 drivers/gpu/drm/i915/i915_scheduler.h | 7 ++++---
 2 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_request.c b/drivers/gpu/drm/i915/i915_request.c
index 96b1cf56c76a..93403eee56af 100644
--- a/drivers/gpu/drm/i915/i915_request.c
+++ b/drivers/gpu/drm/i915/i915_request.c
@@ -1096,6 +1096,9 @@ void i915_request_add(struct i915_request *request)
 	if (engine->schedule) {
 		struct i915_sched_attr attr = request->gem_context->sched;
 
+		if (!request->sched.semaphore)
+			attr.priority |= I915_PRIORITY_NO_SEMAPHORE;
+
 		/*
 		 * Boost priorities to new clients (new request flows).
 		 *
diff --git a/drivers/gpu/drm/i915/i915_scheduler.h b/drivers/gpu/drm/i915/i915_scheduler.h
index d764cf10536f..af6cee4c58fb 100644
--- a/drivers/gpu/drm/i915/i915_scheduler.h
+++ b/drivers/gpu/drm/i915/i915_scheduler.h
@@ -24,14 +24,15 @@ enum {
 	I915_PRIORITY_INVALID = INT_MIN
 };
 
-#define I915_USER_PRIORITY_SHIFT 2
+#define I915_USER_PRIORITY_SHIFT 3
 #define I915_USER_PRIORITY(x) ((x) << I915_USER_PRIORITY_SHIFT)
 
 #define I915_PRIORITY_COUNT BIT(I915_USER_PRIORITY_SHIFT)
 #define I915_PRIORITY_MASK (I915_PRIORITY_COUNT - 1)
 
-#define I915_PRIORITY_WAIT	((u8)BIT(0))
-#define I915_PRIORITY_NEWCLIENT	((u8)BIT(1))
+#define I915_PRIORITY_NO_SEMAPHORE	((u8)BIT(0))
+#define I915_PRIORITY_WAIT		((u8)BIT(1))
+#define I915_PRIORITY_NEWCLIENT		((u8)BIT(2))
 
 struct i915_sched_attr {
 	/**
-- 
2.20.1



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