From: Chris Wilson <chris@chris-wilson.co.uk>
To: Lionel Landwerlin <lionel.g.landwerlin@intel.com>,
intel-gfx@lists.freedesktop.org
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Subject: Re: [Intel-gfx] [PATCH 3/3] drm/i915: peel dma-fence-chains wait fences
Date: Mon, 03 Aug 2020 15:08:40 +0100 [thread overview]
Message-ID: <159646372073.571.1645434502827672775@build.alporthouse.com> (raw)
In-Reply-To: <20200803140147.316523-4-lionel.g.landwerlin@intel.com>
Quoting Lionel Landwerlin (2020-08-03 15:01:47)
> To allow faster engine to engine synchronization, peel the layer of
> dma-fence-chain to expose potential i915 fences so that the
> i915-request code can emit HW semaphore wait/signal operations in the
> ring which is faster than waking up the host to submit unblocked
> workloads after interrupt notification.
>
> v2: Also deal with chains where the last node is not a dma-fence-chain
This is already done by i915_request_await_dma_fence.
-Chris
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next prev parent reply other threads:[~2020-08-03 14:08 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-03 14:01 [Intel-gfx] [PATCH 0/3] drm/i915: timeline semaphore support Lionel Landwerlin
2020-08-03 14:01 ` [Intel-gfx] [PATCH 1/3] drm/i915: introduce a mechanism to extend execbuf2 Lionel Landwerlin
2020-08-03 14:01 ` [Intel-gfx] [PATCH 2/3] drm/i915: add syncobj timeline support Lionel Landwerlin
2020-08-03 14:23 ` [Intel-gfx] [PATCH] " Chris Wilson
2020-08-03 19:26 ` Lionel Landwerlin
2020-08-03 14:01 ` [Intel-gfx] [PATCH 3/3] drm/i915: peel dma-fence-chains wait fences Lionel Landwerlin
2020-08-03 14:08 ` Chris Wilson [this message]
2020-08-03 14:11 ` Lionel Landwerlin
2020-08-03 15:00 ` [Intel-gfx] ✗ Fi.CI.BUILD: failure for drm/i915: timeline semaphore support (rev2) Patchwork
-- strict thread matches above, loose matches on Subject: below --
2020-08-03 9:05 [Intel-gfx] [PATCH 0/3] drm/i915: timeline semaphore support Lionel Landwerlin
2020-08-03 9:05 ` [Intel-gfx] [PATCH 3/3] drm/i915: peel dma-fence-chains wait fences Lionel Landwerlin
2020-07-31 13:45 [Intel-gfx] [PATCH 0/3] drm/i915: timeline semaphore support Lionel Landwerlin
2020-07-31 13:45 ` [Intel-gfx] [PATCH 3/3] drm/i915: peel dma-fence-chains wait fences Lionel Landwerlin
2020-04-06 20:07 [Intel-gfx] [PATCH 1/3] drm/i915: introduce a mechanism to extend execbuf2 Venkata Sandeep Dhanalakota
2020-04-06 20:07 ` [Intel-gfx] [PATCH 3/3] drm/i915: peel dma-fence-chains wait fences Venkata Sandeep Dhanalakota
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