From: Ville Syrjälä <[email protected]> We have two identical copies of the snb+ system agent CPU fence programming code. Extract into a helper.
Also there's no real point in insisting that we program 0 into DPFC_CPU_FENCE_OFFSET when the fence is disabled. So just always stick the computed Y offset there whether or not the fence is actually used or not. Signed-off-by: Ville Syrjälä <[email protected]> --- drivers/gpu/drm/i915/display/intel_fbc.c | 39 ++++++++++++------------ 1 file changed, 19 insertions(+), 20 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_fbc.c b/drivers/gpu/drm/i915/display/intel_fbc.c index 834eb4cc7c10..6bd952a37901 100644 --- a/drivers/gpu/drm/i915/display/intel_fbc.c +++ b/drivers/gpu/drm/i915/display/intel_fbc.c @@ -307,6 +307,18 @@ static void intel_fbc_recompress(struct drm_i915_private *dev_priv) i8xx_fbc_recompress(dev_priv); } +static void snb_fbc_program_fence(struct drm_i915_private *i915) +{ + const struct intel_fbc_reg_params *params = &i915->fbc.params; + u32 ctl = 0; + + if (params->fence_id >= 0) + ctl = SNB_CPU_FENCE_ENABLE | params->fence_id; + + intel_de_write(i915, SNB_DPFC_CTL_SA, ctl); + intel_de_write(i915, DPFC_CPU_FENCE_OFFSET, params->fence_y_offset); +} + static void ilk_fbc_activate(struct drm_i915_private *dev_priv) { struct intel_fbc_reg_params *params = &dev_priv->fbc.params; @@ -320,19 +332,11 @@ static void ilk_fbc_activate(struct drm_i915_private *dev_priv) dpfc_ctl |= DPFC_CTL_FENCE_EN; if (IS_IRONLAKE(dev_priv)) dpfc_ctl |= params->fence_id; - if (IS_SANDYBRIDGE(dev_priv)) { - intel_de_write(dev_priv, SNB_DPFC_CTL_SA, - SNB_CPU_FENCE_ENABLE | params->fence_id); - intel_de_write(dev_priv, DPFC_CPU_FENCE_OFFSET, - params->fence_y_offset); - } - } else { - if (IS_SANDYBRIDGE(dev_priv)) { - intel_de_write(dev_priv, SNB_DPFC_CTL_SA, 0); - intel_de_write(dev_priv, DPFC_CPU_FENCE_OFFSET, 0); - } } + if (IS_SANDYBRIDGE(dev_priv)) + snb_fbc_program_fence(dev_priv); + intel_de_write(dev_priv, ILK_DPFC_FENCE_YOFF, params->fence_y_offset); /* enable it... */ @@ -389,20 +393,15 @@ static void gen7_fbc_activate(struct drm_i915_private *dev_priv) dpfc_ctl |= g4x_dpfc_ctl_limit(dev_priv); - if (params->fence_id >= 0) { + if (params->fence_id >= 0) dpfc_ctl |= IVB_DPFC_CTL_FENCE_EN; - intel_de_write(dev_priv, SNB_DPFC_CTL_SA, - SNB_CPU_FENCE_ENABLE | params->fence_id); - intel_de_write(dev_priv, DPFC_CPU_FENCE_OFFSET, - params->fence_y_offset); - } else if (dev_priv->ggtt.num_fences) { - intel_de_write(dev_priv, SNB_DPFC_CTL_SA, 0); - intel_de_write(dev_priv, DPFC_CPU_FENCE_OFFSET, 0); - } if (dev_priv->fbc.false_color) dpfc_ctl |= FBC_CTL_FALSE_COLOR; + if (dev_priv->ggtt.num_fences) + snb_fbc_program_fence(dev_priv); + intel_de_write(dev_priv, ILK_DPFC_CONTROL, dpfc_ctl | DPFC_CTL_EN); } -- 2.32.0
