drm/i915/i915_suspend.c

36 static void intel_save_swf(struct drm_i915_private *dev_priv)
41 	if (GRAPHICS_VER(dev_priv) == 2 && IS_MOBILE(dev_priv)) {
43 			dev_priv->regfile.saveSWF0[i] = intel_de_read(dev_priv, SWF0(i));
44 			dev_priv->regfile.saveSWF1[i] = intel_de_read(dev_priv, SWF1(i));
47 			dev_priv->regfile.saveSWF3[i] = intel_de_read(dev_priv, SWF3(i));
48 	} else if (GRAPHICS_VER(dev_priv) == 2) {
50 			dev_priv->regfile.saveSWF1[i] = intel_de_read(dev_priv, SWF1(i));
51 	} else if (HAS_GMCH(dev_priv)) {
53 			dev_priv->regfile.saveSWF0[i] = intel_de_read(dev_priv, SWF0(i));
54 			dev_priv->regfile.saveSWF1[i] = intel_de_read(dev_priv, SWF1(i));
57 			dev_priv->regfile.saveSWF3[i] = intel_de_read(dev_priv, SWF3(i));
61 static void intel_restore_swf(struct drm_i915_private *dev_priv)
66 	if (GRAPHICS_VER(dev_priv) == 2 && IS_MOBILE(dev_priv)) {
68 			intel_de_write(dev_priv, SWF0(i), dev_priv->regfile.saveSWF0[i]);
69 			intel_de_write(dev_priv, SWF1(i), dev_priv->regfile.saveSWF1[i]);
72 			intel_de_write(dev_priv, SWF3(i), dev_priv->regfile.saveSWF3[i]);
73 	} else if (GRAPHICS_VER(dev_priv) == 2) {
75 			intel_de_write(dev_priv, SWF1(i), dev_priv->regfile.saveSWF1[i]);
76 	} else if (HAS_GMCH(dev_priv)) {
78 			intel_de_write(dev_priv, SWF0(i), dev_priv->regfile.saveSWF0[i]);
79 			intel_de_write(dev_priv, SWF1(i), dev_priv->regfile.saveSWF1[i]);
82 			intel_de_write(dev_priv, SWF3(i), dev_priv->regfile.saveSWF3[i]);
86 void i915_save_display(struct drm_i915_private *dev_priv)
88 	struct pci_dev *pdev = to_pci_dev(dev_priv->drm.dev);
90 	if (!HAS_DISPLAY(dev_priv))
94 	if (GRAPHICS_VER(dev_priv) <= 4)
95 		dev_priv->regfile.saveDSPARB = intel_de_read(dev_priv, DSPARB);
97 	if (GRAPHICS_VER(dev_priv) == 4)
99 				     &dev_priv->regfile.saveGCDGMBUS);
101 	intel_save_swf(dev_priv);
104 void i915_restore_display(struct drm_i915_private *dev_priv)
106 	struct pci_dev *pdev = to_pci_dev(dev_priv->drm.dev);
108 	if (!HAS_DISPLAY(dev_priv))
111 	intel_restore_swf(dev_priv);
113 	if (GRAPHICS_VER(dev_priv) == 4)
115 				      dev_priv->regfile.saveGCDGMBUS);
118 	if (GRAPHICS_VER(dev_priv) <= 4)
119 		intel_de_write(dev_priv, DSPARB, dev_priv->regfile.saveDSPARB);
121 	intel_vga_redisable(dev_priv);
123 	intel_gmbus_reset(dev_priv);