diff options
| author | Zhao Yakui <yakui.zhao@intel.com> | 2010-06-12 14:32:27 +0800 |
|---|---|---|
| committer | Eric Anholt <eric@anholt.net> | 2010-08-01 19:03:44 -0700 |
| commit | b52eb4dcab23fe0c52a437276258e0afcf913ef5 (patch) | |
| tree | 72391fa2b4cf33155e078ab6467245403fbd3d18 /drivers/gpu/drm/i915/i915_suspend.c | |
| parent | c936f44d1b2daea2fd1d52300cab792abe01e28c (diff) | |
drm/i915: Add frame buffer compression support on Ironlake mobile
About 0.2W power can be saved on one HP laptop.
Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_suspend.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_suspend.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/i915_suspend.c b/drivers/gpu/drm/i915/i915_suspend.c index 60a5800fba6..6e2025274db 100644 --- a/drivers/gpu/drm/i915/i915_suspend.c +++ b/drivers/gpu/drm/i915/i915_suspend.c @@ -602,7 +602,9 @@ void i915_save_display(struct drm_device *dev) /* Only save FBC state on the platform that supports FBC */ if (I915_HAS_FBC(dev)) { - if (IS_GM45(dev)) { + if (IS_IRONLAKE_M(dev)) { + dev_priv->saveDPFC_CB_BASE = I915_READ(ILK_DPFC_CB_BASE); + } else if (IS_GM45(dev)) { dev_priv->saveDPFC_CB_BASE = I915_READ(DPFC_CB_BASE); } else { dev_priv->saveFBC_CFB_BASE = I915_READ(FBC_CFB_BASE); @@ -706,7 +708,10 @@ void i915_restore_display(struct drm_device *dev) /* only restore FBC info on the platform that supports FBC*/ if (I915_HAS_FBC(dev)) { - if (IS_GM45(dev)) { + if (IS_IRONLAKE_M(dev)) { + ironlake_disable_fbc(dev); + I915_WRITE(ILK_DPFC_CB_BASE, dev_priv->saveDPFC_CB_BASE); + } else if (IS_GM45(dev)) { g4x_disable_fbc(dev); I915_WRITE(DPFC_CB_BASE, dev_priv->saveDPFC_CB_BASE); } else { |