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drm/i915/guc: Tidy ELSP port assignment

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Since we know that the port is empty, we do not need to extract the
count from the old request it and copy it over to the new request, or
attempt to unref the NULL old request pointer.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Cc: Michał Winiarski <michal.winiarski@intel.com>
Reviewed-by: Michał Winiarski <michal.winiarski@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171124130031.20761-1-chris@chris-wilson.co.uk
This commit is contained in:
Chris Wilson
2017-11-24 13:00:29 +00:00
parent aa34a6fc27
commit 8c5da3bbcf
1 changed files with 2 additions and 5 deletions
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7
drivers/gpu/drm/i915/intel_guc_submission.c
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@@ -718,12 +718,9 @@ static void guc_submit(struct intel_engine_cs *engine)
static void port_assign(struct execlist_port *port,
struct drm_i915_gem_request *rq)
{
GEM_BUG_ON(rq == port_request(port));
GEM_BUG_ON(port_isset(port));
if (port_isset(port))
i915_gem_request_put(port_request(port));
port_set(port, port_pack(i915_gem_request_get(rq), port_count(port)));
port_set(port, i915_gem_request_get(rq));
}
static void guc_dequeue(struct intel_engine_cs *engine)