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[v3] drm/i915: Enable PM Interrupts target via Display Interface.

Message ID 1400081873-2527-1-git-send-email-deepak.s@linux.intel.com (mailing list archive)
State New, archived
Headers show

Commit Message

deepak.s@linux.intel.com May 14, 2014, 3:37 p.m. UTC
From: Deepak S <deepak.s@linux.intel.com>

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)

Signed-off-by: Deepak S <deepak.s@linux.intel.com>
---
 drivers/gpu/drm/i915/i915_reg.h | 1 +
 drivers/gpu/drm/i915/intel_pm.c | 3 +++
 2 files changed, 4 insertions(+)

Comments

Ville Syrjälä May 14, 2014, 3:47 p.m. UTC | #1
On Wed, May 14, 2014 at 09:07:53PM +0530, deepak.s@linux.intel.com wrote:
> From: Deepak S <deepak.s@linux.intel.com>
> 
> 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)
> 
> Signed-off-by: Deepak S <deepak.s@linux.intel.com>

Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>

> ---
>  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 ca4f8b9..c850254 100644
> --- a/drivers/gpu/drm/i915/i915_reg.h
> +++ b/drivers/gpu/drm/i915/i915_reg.h
> @@ -5112,6 +5112,7 @@ enum punit_power_well {
>  #define GEN6_RC6p_THRESHOLD			0xA0BC
>  #define GEN6_RC6pp_THRESHOLD			0xA0C0
>  #define GEN6_PMINTRMSK				0xA168
> +#define GEN8_PMINTR_REDIRECT_TO_NON_DISP	(1<<31)
>  
>  #define GEN6_PMISR				0x44020
>  #define GEN6_PMIMR				0x44024 /* rps_lock */
> diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
> index 0e69c97..270b659 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;
>  }
>  
> -- 
> 1.9.1
> 
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx@lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/intel-gfx
diff mbox

Patch

diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index ca4f8b9..c850254 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -5112,6 +5112,7 @@  enum punit_power_well {
 #define GEN6_RC6p_THRESHOLD			0xA0BC
 #define GEN6_RC6pp_THRESHOLD			0xA0C0
 #define GEN6_PMINTRMSK				0xA168
+#define GEN8_PMINTR_REDIRECT_TO_NON_DISP	(1<<31)
 
 #define GEN6_PMISR				0x44020
 #define GEN6_PMIMR				0x44024 /* rps_lock */
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 0e69c97..270b659 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;
 }