[PATCH v2 1/2] drm/i915: gen9: fix RPS interrupt routing to CPU vs. GT

Imre Deak
2014-12-19T12:51:59Z

GEN8+ HW has the option to route PM interrupts to either the CPU or to
GT. For GEN8 this was already set correctly to routing to CPU, but not
for GEN9, so fix this. Note that when disabling RPS interrupts this was
set already correctly, though in that case it didn't matter much except
for the possibility of spurious interrupts.

Signed-off-by: Imre Deak <imre.deak@intel.com>
---
drivers/gpu/drm/i915/intel_pm.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index a3ebaa8..f1f06d7 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -3751,7 +3751,7 @@ 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))
+ if (INTEL_INFO(dev_priv)->gen >= 8)
mask |= GEN8_PMINTR_REDIRECT_TO_NON_DISP;

return ~mask;
--
1.8.4