From cfd1c48805208b1f1d5f4df153a15fa4a280eb54 Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Mon, 20 Feb 2017 09:47:07 +0000 Subject: [PATCH] drm/i915: Move the common RPS warnings to intel_set_rps() Instead of having each back-end provide identical guards, just have a singular set in intel_set_rps() to verify that the caller is obeying the rules. Signed-off-by: Chris Wilson Reviewed-by: Radoslaw Szwichtenberg Link: http://patchwork.freedesktop.org/patch/msgid/20170220094713.22874-1-chris@chris-wilson.co.uk --- drivers/gpu/drm/i915/intel_pm.c | 12 ++++-------- 1 file changed, 4 insertions(+), 8 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index fe243c65de1a..e1878cb5d569 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -4914,10 +4914,6 @@ static u32 gen6_rps_pm_mask(struct drm_i915_private *dev_priv, u8 val) * update the GEN6_RP_INTERRUPT_LIMITS register accordingly. */ static int gen6_set_rps(struct drm_i915_private *dev_priv, u8 val) { - WARN_ON(!mutex_is_locked(&dev_priv->rps.hw_lock)); - WARN_ON(val > dev_priv->rps.max_freq); - WARN_ON(val < dev_priv->rps.min_freq); - /* min/max delay may still have been modified so be sure to * write the limits value. */ @@ -4955,10 +4951,6 @@ static int valleyview_set_rps(struct drm_i915_private *dev_priv, u8 val) { int err; - WARN_ON(!mutex_is_locked(&dev_priv->rps.hw_lock)); - WARN_ON(val > dev_priv->rps.max_freq); - WARN_ON(val < dev_priv->rps.min_freq); - if (WARN_ONCE(IS_CHERRYVIEW(dev_priv) && (val & 1), "Odd GPU freq value\n")) val &= ~1; @@ -5109,6 +5101,10 @@ int intel_set_rps(struct drm_i915_private *dev_priv, u8 val) { int err; + lockdep_assert_held(&dev_priv->rps.hw_lock); + GEM_BUG_ON(val > dev_priv->rps.max_freq); + GEM_BUG_ON(val < dev_priv->rps.min_freq); + if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) err = valleyview_set_rps(dev_priv, val); else -- 2.30.2