diff options
| -rw-r--r-- | drivers/gpu/drm/i915/i915_drv.h | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/i915_reg.h | 3 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/i915_suspend.c | 9 |
3 files changed, 13 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 572dcd0e3e0d..be56b0ba88c4 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -157,6 +157,7 @@ typedef struct drm_i915_private { u32 saveDSPACNTR; u32 saveDSPBCNTR; u32 saveDSPARB; + u32 saveRENDERSTANDBY; u32 savePIPEACONF; u32 savePIPEBCONF; u32 savePIPEASRC; diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 5c2d9f206d05..0e476eba36e6 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -527,6 +527,9 @@ #define C0DRB3 0x10206 #define C1DRB3 0x10606 +/** GM965 GM45 render standby register */ +#define MCHBAR_RENDER_STANDBY 0x111B8 + /* * Overlay regs */ 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 */ |