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| author | Jesse Barnes <jbarnes@virtuousgeek.org> | 2011-01-05 12:01:24 -0800 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2011-01-11 20:43:58 +0000 |
| commit | 88271da3f3da75d6eaef5e768c82a1627edf7088 (patch) | |
| tree | be417b97f6252786dd0366592d05d1fc0cb8a939 /drivers/gpu/drm/i915/i915_suspend.c | |
| parent | 0dc79fb2a36efcadbb39bd8b28933d8aa40408b1 (diff) | |
| download | linux-88271da3f3da75d6eaef5e768c82a1627edf7088.tar.gz linux-88271da3f3da75d6eaef5e768c82a1627edf7088.tar.bz2 linux-88271da3f3da75d6eaef5e768c82a1627edf7088.zip | |
drm/i915: re-enable rc6 support for Ironlake+
Re-enable rc6 support on Ironlake for power savings. Adds a debugfs
file to check current RC state, adds a missing workaround for Ironlake
MI_SET_CONTEXT instructions, and renames MCHBAR_RENDER_STANDBY to
RSTDBYCTL to match the docs.
Keep RC6 and the power context disabled on pre-ILK. It only seems to
hang and doesn't save any power.
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_suspend.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_suspend.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/i915_suspend.c b/drivers/gpu/drm/i915/i915_suspend.c index 410772466fa7..af530637777a 100644 --- a/drivers/gpu/drm/i915/i915_suspend.c +++ b/drivers/gpu/drm/i915/i915_suspend.c @@ -740,7 +740,7 @@ void i915_restore_display(struct drm_device *dev) I915_WRITE(PCH_PP_OFF_DELAYS, dev_priv->savePP_OFF_DELAYS); I915_WRITE(PCH_PP_DIVISOR, dev_priv->savePP_DIVISOR); I915_WRITE(PCH_PP_CONTROL, dev_priv->savePP_CONTROL); - I915_WRITE(MCHBAR_RENDER_STANDBY, + I915_WRITE(RSTDBYCTL, dev_priv->saveMCHBAR_RENDER_STANDBY); } else { I915_WRITE(PFIT_PGM_RATIOS, dev_priv->savePFIT_PGM_RATIOS); @@ -811,7 +811,7 @@ int i915_save_state(struct drm_device *dev) dev_priv->saveFDI_RXA_IMR = I915_READ(FDI_RXA_IMR); dev_priv->saveFDI_RXB_IMR = I915_READ(FDI_RXB_IMR); dev_priv->saveMCHBAR_RENDER_STANDBY = - I915_READ(MCHBAR_RENDER_STANDBY); + I915_READ(RSTDBYCTL); } else { dev_priv->saveIER = I915_READ(IER); dev_priv->saveIMR = I915_READ(IMR); |