diff options
| author |   Keith Packard <keithp@keithp.com> | 2008-11-02 23:08:44 -0800 |
|---|---|---|
| committer |   Dave Airlie <airlied@linux.ie> | 2008-11-11 17:42:19 +1000 |
| commit | 881ee9889c8b98671c5491e43666bf5d4f78a180 (patch) | |
| tree | c6b851fbea5d4cf485263f16e998a647ea37d5ba /drivers/gpu/drm/i915/i915_suspend.c | |
| parent | Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6 (diff) | |
| download | linux-dev-881ee9889c8b98671c5491e43666bf5d4f78a180.tar.xz linux-dev-881ee9889c8b98671c5491e43666bf5d4f78a180.zip | |
i915: Save/restore MCHBAR_RENDER_STANDBY on GM965/GM45
This register is set by the 2D driver to prevent lockups, and so it needs to
be preserved across suspend/resume too. This makes my X200s work.
Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@linux.ie>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_suspend.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_suspend.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_suspend.c b/drivers/gpu/drm/i915/i915_suspend.c index 603fe742ccd4..5ddc6e595c0c 100644 --- a/drivers/gpu/drm/i915/i915_suspend.c +++ b/drivers/gpu/drm/i915/i915_suspend.c @@ -240,6 +240,10 @@ int i915_save_state(struct drm_device *dev) pci_read_config_byte(dev->pdev, LBB, &dev_priv->saveLBB); + /* Render Standby */ + if (IS_I965G(dev) && IS_MOBILE(dev)) + dev_priv->saveRENDERSTANDBY = I915_READ(MCHBAR_RENDER_STANDBY); + /* Display arbitration control */ dev_priv->saveDSPARB = I915_READ(DSPARB); @@ -365,6 +369,11 @@ int i915_restore_state(struct drm_device *dev) pci_write_config_byte(dev->pdev, LBB, dev_priv->saveLBB); + /* Render Standby */ + if (IS_I965G(dev) && IS_MOBILE(dev)) + I915_WRITE(MCHBAR_RENDER_STANDBY, dev_priv->saveRENDERSTANDBY); + + /* Display arbitration */ I915_WRITE(DSPARB, dev_priv->saveDSPARB); /* Pipe & plane A info */ |