diff options
| author | Tvrtko Ursulin <tvrtko.ursulin@intel.com> | 2016-10-04 11:29:18 +0300 |
|---|---|---|
| committer | Tvrtko Ursulin <tvrtko.ursulin@intel.com> | 2016-10-04 13:09:59 +0300 |
| commit | c521b0c898b0339d4d5fc091849211c5f469f1bd (patch) | |
| tree | 08f358185e4f132769dc0dacf7d330cd2dea3434 /drivers/gpu | |
| parent | 003342a50021132603180d98e49bd17d63e38ccf (diff) | |
| download | linux-c521b0c898b0339d4d5fc091849211c5f469f1bd.tar.xz | |
drm/i915: Do not inline forcewake taking in mmio accessors
Once we know we need to take new forcewakes, that being
a slow operation, it does not make sense to inline that
code into every mmio accessor.
Move it to a separate function and save some code.
v2: Be explicit with noinline and remove stale comment.
(Chris Wilson)
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_uncore.c | 24 |
1 files changed, 14 insertions, 10 deletions
diff --git a/drivers/gpu/drm/i915/intel_uncore.c b/drivers/gpu/drm/i915/intel_uncore.c index ef40121afbaa..7ae38165f1bb 100644 --- a/drivers/gpu/drm/i915/intel_uncore.c +++ b/drivers/gpu/drm/i915/intel_uncore.c @@ -861,11 +861,21 @@ __gen2_read(64) trace_i915_reg_rw(false, reg, val, sizeof(val), trace); \ return val -static inline void __force_wake_auto(struct drm_i915_private *dev_priv, - enum forcewake_domains fw_domains) +static noinline void ___force_wake_auto(struct drm_i915_private *dev_priv, + enum forcewake_domains fw_domains) { struct intel_uncore_forcewake_domain *domain; + for_each_fw_domain_masked(domain, fw_domains, dev_priv) + fw_domain_arm_timer(domain); + + dev_priv->uncore.funcs.force_wake_get(dev_priv, fw_domains); + dev_priv->uncore.fw_domains_active |= fw_domains; +} + +static inline void __force_wake_auto(struct drm_i915_private *dev_priv, + enum forcewake_domains fw_domains) +{ if (WARN_ON(!fw_domains)) return; @@ -873,14 +883,8 @@ static inline void __force_wake_auto(struct drm_i915_private *dev_priv, fw_domains &= dev_priv->uncore.fw_domains; fw_domains &= ~dev_priv->uncore.fw_domains_active; - if (fw_domains) { - /* Ideally GCC would be constant-fold and eliminate this loop */ - for_each_fw_domain_masked(domain, fw_domains, dev_priv) - fw_domain_arm_timer(domain); - - dev_priv->uncore.funcs.force_wake_get(dev_priv, fw_domains); - dev_priv->uncore.fw_domains_active |= fw_domains; - } + if (fw_domains) + ___force_wake_auto(dev_priv, fw_domains); } #define __gen6_read(x) \ |