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Message-Id: <20230228225833.2920879-17-robdclark@gmail.com>
Date: Tue, 28 Feb 2023 14:58:20 -0800
From: Rob Clark <robdclark@...il.com>
To: dri-devel@...ts.freedesktop.org
Cc: freedreno@...ts.freedesktop.org, Daniel Vetter <daniel@...ll.ch>,
Christian König
<ckoenig.leichtzumerken@...il.com>,
Michel Dänzer <michel@...nzer.net>,
Tvrtko Ursulin <tvrtko.ursulin@...el.com>,
Rodrigo Vivi <rodrigo.vivi@...el.com>,
Alex Deucher <alexander.deucher@....com>,
Pekka Paalanen <ppaalanen@...il.com>,
Simon Ser <contact@...rsion.fr>,
Luben Tuikov <luben.tuikov@....com>,
Rob Clark <robdclark@...omium.org>,
Jani Nikula <jani.nikula@...ux.intel.com>,
Joonas Lahtinen <joonas.lahtinen@...ux.intel.com>,
Tvrtko Ursulin <tvrtko.ursulin@...ux.intel.com>,
David Airlie <airlied@...il.com>,
Sumit Semwal <sumit.semwal@...aro.org>,
Christian König <christian.koenig@....com>,
intel-gfx@...ts.freedesktop.org,
linux-kernel@...r.kernel.org (open list),
linux-media@...r.kernel.org (open list:DMA BUFFER SHARING FRAMEWORK),
linaro-mm-sig@...ts.linaro.org (moderated list:DMA BUFFER SHARING
FRAMEWORK)
Subject: [PATCH v8 16/16] drm/i915: Add deadline based boost support
From: Rob Clark <robdclark@...omium.org>
v2: rebase
Signed-off-by: Rob Clark <robdclark@...omium.org>
---
drivers/gpu/drm/i915/i915_request.c | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
diff --git a/drivers/gpu/drm/i915/i915_request.c b/drivers/gpu/drm/i915/i915_request.c
index 7503dcb9043b..44491e7e214c 100644
--- a/drivers/gpu/drm/i915/i915_request.c
+++ b/drivers/gpu/drm/i915/i915_request.c
@@ -97,6 +97,25 @@ static bool i915_fence_enable_signaling(struct dma_fence *fence)
return i915_request_enable_breadcrumb(to_request(fence));
}
+static void i915_fence_set_deadline(struct dma_fence *fence, ktime_t deadline)
+{
+ struct i915_request *rq = to_request(fence);
+
+ if (i915_request_completed(rq))
+ return;
+
+ if (i915_request_started(rq))
+ return;
+
+ /*
+ * TODO something more clever for deadlines that are in the
+ * future. I think probably track the nearest deadline in
+ * rq->timeline and set timer to trigger boost accordingly?
+ */
+
+ intel_rps_boost(rq);
+}
+
static signed long i915_fence_wait(struct dma_fence *fence,
bool interruptible,
signed long timeout)
@@ -182,6 +201,7 @@ const struct dma_fence_ops i915_fence_ops = {
.signaled = i915_fence_signaled,
.wait = i915_fence_wait,
.release = i915_fence_release,
+ .set_deadline = i915_fence_set_deadline,
};
static void irq_execute_cb(struct irq_work *wrk)
--
2.39.1
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