Merge branch 'master' of /pub/scm/linux/kernel/git/torvalds/linux-2.6

1 files changed, 41 insertions, 11 deletions

diff --git a/drivers/char/drm/i915_drv.c b/drivers/char/drm/i915_drv.c
index 52e51033d32..b2b451dc446 100644
--- a/drivers/char/drm/i915_drv.c
+++ b/drivers/char/drm/i915_drv.c
@@ -160,6 +160,7 @@ static void i915_save_vga(struct drm_device *dev)
 		dev_priv->saveAR[i] = i915_read_ar(st01, i, 0);
 	inb(st01);
 	outb(dev_priv->saveAR_INDEX, VGA_AR_INDEX);
+	inb(st01);
 
 	/* Graphics controller registers */
 	for (i = 0; i < 9; i++)
@@ -221,10 +222,12 @@ static void i915_restore_vga(struct drm_device *dev)
 			   dev_priv->saveGR[0x18]);
 
 	/* Attribute controller registers */
+	inb(st01);
 	for (i = 0; i < 20; i++)
 		i915_write_ar(st01, i, dev_priv->saveAR[i], 0);
 	inb(st01); /* switch back to index mode */
 	outb(dev_priv->saveAR_INDEX | 0x20, VGA_AR_INDEX);
+	inb(st01);
 
 	/* VGA color palette registers */
 	outb(dev_priv->saveDACMASK, VGA_DACMASK);
@@ -236,7 +239,7 @@ static void i915_restore_vga(struct drm_device *dev)
 
 }
 
-static int i915_suspend(struct drm_device *dev)
+static int i915_suspend(struct drm_device *dev, pm_message_t state)
 {
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	int i;
@@ -247,6 +250,9 @@ static int i915_suspend(struct drm_device *dev)
 		return -ENODEV;
 	}
 
+	if (state.event == PM_EVENT_PRETHAW)
+		return 0;
+
 	pci_save_state(dev->pdev);
 	pci_read_config_byte(dev->pdev, LBB, &dev_priv->saveLBB);
 
@@ -276,6 +282,7 @@ 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);
@@ -303,6 +310,7 @@ 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);
@@ -329,12 +337,26 @@ 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);
 	dev_priv->saveVCLK_POST_DIV = I915_READ(VCLK_POST_DIV);
 	dev_priv->saveVGACNTRL = I915_READ(VGACNTRL);
 
+	/* Clock gating state */
+	dev_priv->saveDSPCLK_GATE_D = I915_READ(DSPCLK_GATE_D);
+
+	/* Cache mode state */
+	dev_priv->saveCACHE_MODE_0 = I915_READ(CACHE_MODE_0);
+
+	/* Memory Arbitration state */
+	dev_priv->saveMI_ARB_STATE = I915_READ(MI_ARB_STATE);
+
 	/* Scratch space */
 	for (i = 0; i < 16; i++) {
 		dev_priv->saveSWF0[i] = I915_READ(SWF0 + (i << 2));
@@ -345,9 +367,11 @@ static int i915_suspend(struct drm_device *dev)
 
 	i915_save_vga(dev);
 
-	/* Shut down the device */
-	pci_disable_device(dev->pdev);
-	pci_set_power_state(dev->pdev, PCI_D3hot);
+	if (state.event == PM_EVENT_SUSPEND) {
+		/* Shut down the device */
+		pci_disable_device(dev->pdev);
+		pci_set_power_state(dev->pdev, PCI_D3hot);
+	}
 
 	return 0;
 }
@@ -400,9 +424,7 @@ static int i915_resume(struct drm_device *dev)
 		I915_WRITE(DSPATILEOFF, dev_priv->saveDSPATILEOFF);
 	}
 
-	if ((dev_priv->saveDPLL_A & DPLL_VCO_ENABLE) &&
-	    (dev_priv->saveDPLL_A & DPLL_VGA_MODE_DIS))
-		I915_WRITE(PIPEACONF, dev_priv->savePIPEACONF);
+	I915_WRITE(PIPEACONF, dev_priv->savePIPEACONF);
 
 	i915_restore_palette(dev, PIPE_A);
 	/* Enable the plane */
@@ -444,10 +466,9 @@ static int i915_resume(struct drm_device *dev)
 		I915_WRITE(DSPBTILEOFF, dev_priv->saveDSPBTILEOFF);
 	}
 
-	if ((dev_priv->saveDPLL_B & DPLL_VCO_ENABLE) &&
-	    (dev_priv->saveDPLL_B & DPLL_VGA_MODE_DIS))
-		I915_WRITE(PIPEBCONF, dev_priv->savePIPEBCONF);
-	i915_restore_palette(dev, PIPE_A);
+	I915_WRITE(PIPEBCONF, dev_priv->savePIPEBCONF);
+
+	i915_restore_palette(dev, PIPE_B);
 	/* Enable the plane */
 	I915_WRITE(DSPBCNTR, dev_priv->saveDSPBCNTR);
 	I915_WRITE(DSPBBASE, I915_READ(DSPBBASE));
@@ -485,6 +506,15 @@ static int i915_resume(struct drm_device *dev)
 	I915_WRITE(VCLK_POST_DIV, dev_priv->saveVCLK_POST_DIV);
 	udelay(150);
 
+	/* Clock gating state */
+	I915_WRITE (DSPCLK_GATE_D, dev_priv->saveDSPCLK_GATE_D);
+
+	/* Cache mode state */
+	I915_WRITE (CACHE_MODE_0, dev_priv->saveCACHE_MODE_0 | 0xffff0000);
+
+	/* Memory arbitration state */
+	I915_WRITE (MI_ARB_STATE, dev_priv->saveMI_ARB_STATE | 0xffff0000);
+
 	for (i = 0; i < 16; i++) {
 		I915_WRITE(SWF0 + (i << 2), dev_priv->saveSWF0[i]);
 		I915_WRITE(SWF10 + (i << 2), dev_priv->saveSWF1[i+7]);