diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_fbc.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_fbc.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_fbc.c b/drivers/gpu/drm/i915/intel_fbc.c index 3fca9fa39a8e..55ed6bb2f6c7 100644 --- a/drivers/gpu/drm/i915/intel_fbc.c +++ b/drivers/gpu/drm/i915/intel_fbc.c @@ -291,6 +291,19 @@ static void gen7_fbc_activate(struct drm_i915_private *dev_priv) u32 dpfc_ctl; int threshold = dev_priv->fbc.threshold; + /* Display WA #0529: skl, kbl, bxt. */ + if (IS_GEN9(dev_priv) && !IS_GEMINILAKE(dev_priv)) { + u32 val = I915_READ(CHICKEN_MISC_4); + + val &= ~(FBC_STRIDE_OVERRIDE | FBC_STRIDE_MASK); + + if (i915_gem_object_get_tiling(params->vma->obj) != + I915_TILING_X) + val |= FBC_STRIDE_OVERRIDE | params->gen9_wa_cfb_stride; + + I915_WRITE(CHICKEN_MISC_4, val); + } + dpfc_ctl = 0; if (IS_IVYBRIDGE(dev_priv)) dpfc_ctl |= IVB_DPFC_CTL_PLANE(params->crtc.plane); @@ -883,6 +896,10 @@ static void intel_fbc_get_reg_params(struct intel_crtc *crtc, params->fb.stride = cache->fb.stride; params->cfb_size = intel_fbc_calculate_cfb_size(dev_priv, cache); + + if (IS_GEN9(dev_priv) && !IS_GEMINILAKE(dev_priv)) + params->gen9_wa_cfb_stride = DIV_ROUND_UP(cache->plane.src_w, + 32 * fbc->threshold) * 8; } static bool intel_fbc_reg_params_equal(struct intel_fbc_reg_params *params1, |