diff options
| author | Jesse Barnes <jbarnes@nietzche.virtuousgeek.org> | 2008-02-07 10:48:08 -0800 |
|---|---|---|
| committer | Jesse Barnes <jbarnes@nietzche.virtuousgeek.org> | 2008-02-07 10:48:08 -0800 |
| commit | 8b6c96dedd4ba5dfbfec6a7c831d566e31d28781 (patch) | |
| tree | fa3baf867f1e2a4a3b7d16c5a719db34ef02c0ca | |
| parent | 79d69285202b55f269aa88a6bcda257257c9dee3 (diff) | |
i915: save/restore interrupt state
On resume, if the interrupt state isn't restored correctly, we may end
up with a flood of unexpected or ill-timed interrupts, which could cause
the kernel to disable the interrupt or vblank events to happen at the
wrong time. So save/restore them properly.
| -rw-r--r-- | linux-core/i915_drv.c | 7 | ||||
| -rw-r--r-- | shared-core/i915_drv.h | 5 |
2 files changed, 12 insertions, 0 deletions
diff --git a/linux-core/i915_drv.c b/linux-core/i915_drv.c index ccc061d3..c771ab3e 100644 --- a/linux-core/i915_drv.c +++ b/linux-core/i915_drv.c @@ -303,6 +303,7 @@ static int i915_suspend(struct drm_device *dev) dev_priv->saveDSPATILEOFF = I915_READ(DSPATILEOFF); } i915_save_palette(dev, PIPE_A); + dev_priv->savePIPEASTAT = I915_READ(I915REG_PIPEASTAT); /* Pipe & plane B info */ dev_priv->savePIPEBCONF = I915_READ(PIPEBCONF); @@ -330,6 +331,7 @@ static int i915_suspend(struct drm_device *dev) dev_priv->saveDSPBTILEOFF = I915_READ(DSPBTILEOFF); } i915_save_palette(dev, PIPE_B); + dev_priv->savePIPEBSTAT = I915_READ(I915REG_PIPEBSTAT); /* CRT state */ dev_priv->saveADPA = I915_READ(ADPA); @@ -356,6 +358,11 @@ static int i915_suspend(struct drm_device *dev) dev_priv->saveFBC_CONTROL2 = I915_READ(FBC_CONTROL2); dev_priv->saveFBC_CONTROL = I915_READ(FBC_CONTROL); + /* Interrupt state */ + dev_priv->saveIIR = I915_READ(I915REG_INT_IDENTITY_R); + dev_priv->saveIER = I915_READ(I915REG_INT_ENABLE_R); + dev_priv->saveIMR = I915_READ(I915REG_INT_MASK_R); + /* VGA state */ dev_priv->saveVCLK_DIVISOR_VGA0 = I915_READ(VCLK_DIVISOR_VGA0); dev_priv->saveVCLK_DIVISOR_VGA1 = I915_READ(VCLK_DIVISOR_VGA1); diff --git a/shared-core/i915_drv.h b/shared-core/i915_drv.h index 87594670..d2faee29 100644 --- a/shared-core/i915_drv.h +++ b/shared-core/i915_drv.h @@ -166,6 +166,7 @@ typedef struct drm_i915_private { u32 saveVBLANK_A; u32 saveVSYNC_A; u32 saveBCLRPAT_A; + u32 savePIPEASTAT; u32 saveDSPASTRIDE; u32 saveDSPASIZE; u32 saveDSPAPOS; @@ -186,6 +187,7 @@ typedef struct drm_i915_private { u32 saveVBLANK_B; u32 saveVSYNC_B; u32 saveBCLRPAT_B; + u32 savePIPEBSTAT; u32 saveDSPBSTRIDE; u32 saveDSPBSIZE; u32 saveDSPBPOS; @@ -214,6 +216,9 @@ typedef struct drm_i915_private { u32 saveFBC_LL_BASE; u32 saveFBC_CONTROL; u32 saveFBC_CONTROL2; + u32 saveIER; + u32 saveIIR; + u32 saveIMR; u32 saveSWF0[16]; u32 saveSWF1[16]; u32 saveSWF2[3]; |