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authorChris Wilson <chris@chris-wilson.co.uk>2016-07-20 09:21:11 +0100
committerChris Wilson <chris@chris-wilson.co.uk>2016-07-20 09:29:53 +0100
commit04769652c8c7ad4779a4b943dcf889a2020226f4 (patch)
treeaeb6abe430789f85abf9aae0355e5a76b1af5a5c /drivers/gpu/drm/i915/intel_engine_cs.c
parentc4b0930bf418d5fab1d75ab462f0a7ff155f1b33 (diff)
downloadop-kernel-dev-04769652c8c7ad4779a4b943dcf889a2020226f4.zip
op-kernel-dev-04769652c8c7ad4779a4b943dcf889a2020226f4.tar.gz
drm/i915: Derive GEM requests from dma-fence
dma-buf provides a generic fence class for interoperation between drivers. Internally we use the request structure as a fence, and so with only a little bit of interfacing we can rebase those requests on top of dma-buf fences. This will allow us, in the future, to pass those fences back to userspace or between drivers. v2: The fence_context needs to be globally unique, not just unique to this device. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Jesse Barnes <jbarnes@virtuousgeek.org> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1469002875-2335-4-git-send-email-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/intel_engine_cs.c')
-rw-r--r--drivers/gpu/drm/i915/intel_engine_cs.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_engine_cs.c b/drivers/gpu/drm/i915/intel_engine_cs.c
index e3c9f04..f4a35ec 100644
--- a/drivers/gpu/drm/i915/intel_engine_cs.c
+++ b/drivers/gpu/drm/i915/intel_engine_cs.c
@@ -182,6 +182,8 @@ void intel_engine_setup_common(struct intel_engine_cs *engine)
INIT_LIST_HEAD(&engine->execlist_queue);
spin_lock_init(&engine->execlist_lock);
+ engine->fence_context = fence_context_alloc(1);
+
intel_engine_init_hangcheck(engine);
i915_gem_batch_pool_init(&engine->i915->drm, &engine->batch_pool);
}
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