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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2016-03-24 14:31:47 +0000 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2016-03-30 12:02:21 +0100 |
| commit | b208ba8e49cd2b70a5e8f8f778627e5a2f050fed (patch) | |
| tree | 8719d0331a9041c75a4600daab54e30c8cb73b39 /drivers/gpu/drm/i915/intel_uncore.c | |
| parent | d85489d314f2d273ffb4217b77bc659900b8a3f6 (diff) | |
| download | linux-b208ba8e49cd2b70a5e8f8f778627e5a2f050fed.tar.gz linux-b208ba8e49cd2b70a5e8f8f778627e5a2f050fed.tar.bz2 linux-b208ba8e49cd2b70a5e8f8f778627e5a2f050fed.zip | |
drm/i915: Rename __force_wake_get to __force_wake_auto
__force_wake_get() only acquires a temporary wakeref on forcewake that is
automatically released when a timer expires. When reading the code
again, I confused __intel_uncore_forcewake_get() for __force_wake_get()
and to my shame thought I found a bug in unbalanced wake_count handling.
I claim that if the function had been called __force_wake_auto() instead
I would not have embarrassed myself.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1458829907-26596-1-git-send-email-chris@chris-wilson.co.uk
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_uncore.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_uncore.c | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/drivers/gpu/drm/i915/intel_uncore.c b/drivers/gpu/drm/i915/intel_uncore.c index 512b7faedefd..ac1c545436af 100644 --- a/drivers/gpu/drm/i915/intel_uncore.c +++ b/drivers/gpu/drm/i915/intel_uncore.c @@ -716,8 +716,8 @@ __gen2_read(64) trace_i915_reg_rw(false, reg, val, sizeof(val), trace); \ return val -static inline void __force_wake_get(struct drm_i915_private *dev_priv, - enum forcewake_domains fw_domains) +static inline void __force_wake_auto(struct drm_i915_private *dev_priv, + enum forcewake_domains fw_domains) { struct intel_uncore_forcewake_domain *domain; enum forcewake_domain_id id; @@ -745,7 +745,7 @@ static u##x \ gen6_read##x(struct drm_i915_private *dev_priv, i915_reg_t reg, bool trace) { \ GEN6_READ_HEADER(x); \ if (NEEDS_FORCE_WAKE(offset)) \ - __force_wake_get(dev_priv, FORCEWAKE_RENDER); \ + __force_wake_auto(dev_priv, FORCEWAKE_RENDER); \ val = __raw_i915_read##x(dev_priv, reg); \ GEN6_READ_FOOTER; \ } @@ -762,7 +762,7 @@ vlv_read##x(struct drm_i915_private *dev_priv, i915_reg_t reg, bool trace) { \ else if (FORCEWAKE_VLV_MEDIA_RANGE_OFFSET(offset)) \ fw_engine = FORCEWAKE_MEDIA; \ if (fw_engine) \ - __force_wake_get(dev_priv, fw_engine); \ + __force_wake_auto(dev_priv, fw_engine); \ val = __raw_i915_read##x(dev_priv, reg); \ GEN6_READ_FOOTER; \ } @@ -781,7 +781,7 @@ chv_read##x(struct drm_i915_private *dev_priv, i915_reg_t reg, bool trace) { \ else if (FORCEWAKE_CHV_COMMON_RANGE_OFFSET(offset)) \ fw_engine = FORCEWAKE_RENDER | FORCEWAKE_MEDIA; \ if (fw_engine) \ - __force_wake_get(dev_priv, fw_engine); \ + __force_wake_auto(dev_priv, fw_engine); \ val = __raw_i915_read##x(dev_priv, reg); \ GEN6_READ_FOOTER; \ } @@ -805,7 +805,7 @@ gen9_read##x(struct drm_i915_private *dev_priv, i915_reg_t reg, bool trace) { \ else \ fw_engine = FORCEWAKE_BLITTER; \ if (fw_engine) \ - __force_wake_get(dev_priv, fw_engine); \ + __force_wake_auto(dev_priv, fw_engine); \ val = __raw_i915_read##x(dev_priv, reg); \ GEN6_READ_FOOTER; \ } @@ -969,7 +969,7 @@ static void \ gen8_write##x(struct drm_i915_private *dev_priv, i915_reg_t reg, u##x val, bool trace) { \ GEN6_WRITE_HEADER; \ if (NEEDS_FORCE_WAKE(offset) && !is_gen8_shadowed(dev_priv, reg)) \ - __force_wake_get(dev_priv, FORCEWAKE_RENDER); \ + __force_wake_auto(dev_priv, FORCEWAKE_RENDER); \ __raw_i915_write##x(dev_priv, reg, val); \ GEN6_WRITE_FOOTER; \ } @@ -989,7 +989,7 @@ chv_write##x(struct drm_i915_private *dev_priv, i915_reg_t reg, u##x val, bool t else if (FORCEWAKE_CHV_COMMON_RANGE_OFFSET(offset)) \ fw_engine = FORCEWAKE_RENDER | FORCEWAKE_MEDIA; \ if (fw_engine) \ - __force_wake_get(dev_priv, fw_engine); \ + __force_wake_auto(dev_priv, fw_engine); \ __raw_i915_write##x(dev_priv, reg, val); \ GEN6_WRITE_FOOTER; \ } @@ -1036,7 +1036,7 @@ gen9_write##x(struct drm_i915_private *dev_priv, i915_reg_t reg, u##x val, \ else \ fw_engine = FORCEWAKE_BLITTER; \ if (fw_engine) \ - __force_wake_get(dev_priv, fw_engine); \ + __force_wake_auto(dev_priv, fw_engine); \ __raw_i915_write##x(dev_priv, reg, val); \ GEN6_WRITE_FOOTER; \ } |