diff options
| author |  Tvrtko Ursulin <tvrtko.ursulin@intel.com>
| 2016-04-07 17:04:34 +0100 |
|---|---|---|
| committer | Tvrtko Ursulin <tvrtko.ursulin@intel.com>
| 2016-04-12 14:30:41 +0100 |
| commit | 4e1176dd615f11b7cb6791205dfb21647bf4580a (patch) | |
| tree | fb0813e126faeb35d3489f535c1a792de1ef0dbc /drivers/gpu/drm/i915/intel_uncore.c | |
| parent | drm/i915: Simplify for_each_fw_domain iterators (diff) | |
| download | linux-4e1176dd615f11b7cb6791205dfb21647bf4580a.tar.gz linux-4e1176dd615f11b7cb6791205dfb21647bf4580a.tar.bz2 linux-4e1176dd615f11b7cb6791205dfb21647bf4580a.zip | |
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: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/1460045074-1006-1-git-send-email-tvrtko.ursulin@linux.intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/intel_uncore.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_uncore.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/intel_uncore.c b/drivers/gpu/drm/i915/intel_uncore.c index 963a3875d436..dcf38bb5a097 100644 --- a/drivers/gpu/drm/i915/intel_uncore.c +++ b/drivers/gpu/drm/i915/intel_uncore.c @@ -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 |