diff options
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_fbc.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_fbc.c | 20 |
1 files changed, 7 insertions, 13 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_fbc.c b/drivers/gpu/drm/i915/display/intel_fbc.c index 37ebed8d228d..46f62fdf9eee 100644 --- a/drivers/gpu/drm/i915/display/intel_fbc.c +++ b/drivers/gpu/drm/i915/display/intel_fbc.c @@ -164,15 +164,13 @@ static void i8xx_fbc_deactivate(struct drm_i915_private *dev_priv) static void i8xx_fbc_activate(struct drm_i915_private *dev_priv) { - struct intel_fbc_reg_params *params = &dev_priv->fbc.params; + struct intel_fbc *fbc = &dev_priv->fbc; + const struct intel_fbc_reg_params *params = &fbc->params; int cfb_pitch; int i; u32 fbc_ctl; - /* Note: fbc.limit == 1 for i8xx */ - cfb_pitch = params->cfb_size / FBC_LL_SIZE; - if (params->fb.stride < cfb_pitch) - cfb_pitch = params->fb.stride; + cfb_pitch = params->cfb_stride / fbc->limit; /* FBC_CTL wants 32B or 64B units */ if (DISPLAY_VER(dev_priv) == 2) @@ -518,18 +516,14 @@ static int intel_fbc_min_limit(int fb_cpp) static int intel_fbc_max_limit(struct drm_i915_private *dev_priv) { - /* - * FIXME: FBC1 can have arbitrary cfb stride, - * so we could support different compression ratios. - */ - if (DISPLAY_VER(dev_priv) < 5 && !IS_G4X(dev_priv)) - return 1; - /* WaFbcOnly1to1Ratio:ctg */ if (IS_G4X(dev_priv)) return 1; - /* FBC2 can only do 1:1, 1:2, 1:4 */ + /* + * FBC2 can only do 1:1, 1:2, 1:4, we limit + * FBC1 to the same out of convenience. + */ return 4; } |