From baccd4586ed948569207de83f28772376d5c3772 Mon Sep 17 00:00:00 2001 From: Deepak S Date: Thu, 15 May 2014 20:58:09 +0300 Subject: [PATCH] drm/i915: Enable PM Interrupts target via Display Interface. MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit In BDW, Apart from unmasking up/down threshold interrupts. we need to umask bit 32 of PM_INTRMASK to route interrupts to target via Display Interface. v2: Add (1<<31) mask (Ville) v3: Add Gen check for the mask (ville) Reviewed-by: Ville Syrjälä Signed-off-by: Deepak S Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/i915_reg.h | 1 + drivers/gpu/drm/i915/intel_pm.c | 3 +++ 2 files changed, 4 insertions(+) diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 76fdfc2fb835..ac90786dbb25 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -5311,6 +5311,7 @@ enum punit_power_well { #define VLV_RCEDATA 0xA0BC #define GEN6_RC6pp_THRESHOLD 0xA0C0 #define GEN6_PMINTRMSK 0xA168 +#define GEN8_PMINTR_REDIRECT_TO_NON_DISP (1<<31) #define VLV_PWRDWNUPCTL 0xA294 #define GEN6_PMISR 0x44020 diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index c72cd421deed..bc23ab949124 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -3114,6 +3114,9 @@ static u32 gen6_rps_pm_mask(struct drm_i915_private *dev_priv, u8 val) if (INTEL_INFO(dev_priv->dev)->gen <= 7 && !IS_HASWELL(dev_priv->dev)) mask |= GEN6_PM_RP_UP_EI_EXPIRED; + if (IS_GEN8(dev_priv->dev)) + mask |= GEN8_PMINTR_REDIRECT_TO_NON_DISP; + return ~mask; } -- 2.20.1