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由 Chris Wilson 提交于
At the start of building a request, we would wait for roughly enough space to fit the average request (to reduce the likelihood of having to wait and abort partway through request construction). To achieve we would try to begin a 0-length command packet, this just adds extra confusion so make the wait-for-space explicit, as in the next patch we want to move it from the backend to the i915_gem_request_alloc() so it can ensure that the wait-for-space is the first operation in building a new request. Signed-off-by: NChris Wilson <chris@chris-wilson.co.uk> Reviewed-by: NMika Kuoppala <mika.kuoppala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20171115151204.8105-2-chris@chris-wilson.co.uk
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