Commit 4e1176dd authored by Tvrtko Ursulin's avatar Tvrtko Ursulin

drm/i915: Do not serialize forcewake acquire across domains

On platforms with multiple forcewake domains it seems more efficient
to request all desired ones and then to wait for acks to avoid
needlessly serializing on each domain.

v2: Rebase.
Signed-off-by: default avatarTvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/1460045074-1006-1-git-send-email-tvrtko.ursulin@linux.intel.com
parent 33c582c1
......@@ -115,8 +115,10 @@ fw_domains_get(struct drm_i915_private *dev_priv, enum forcewake_domains fw_doma
for_each_fw_domain_masked(d, fw_domains, dev_priv) {
fw_domain_wait_ack_clear(d);
fw_domain_get(d);
fw_domain_wait_ack(d);
}
for_each_fw_domain_masked(d, fw_domains, dev_priv)
fw_domain_wait_ack(d);
}
static void
......
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