drm/i915: Fix product names and #defines
[safe/jmp/linux-2.6] / drivers / gpu / drm / i915 / i915_suspend.c
index ce8a213..402a7eb 100644 (file)
 #include "drmP.h"
 #include "drm.h"
 #include "i915_drm.h"
-#include "i915_drv.h"
+#include "intel_drv.h"
 
 static bool i915_pipe_enabled(struct drm_device *dev, enum pipe pipe)
 {
        struct drm_i915_private *dev_priv = dev->dev_private;
+       u32     dpll_reg;
 
-       if (pipe == PIPE_A)
-               return (I915_READ(DPLL_A) & DPLL_VCO_ENABLE);
-       else
-               return (I915_READ(DPLL_B) & DPLL_VCO_ENABLE);
+       if (IS_IRONLAKE(dev)) {
+               dpll_reg = (pipe == PIPE_A) ? PCH_DPLL_A: PCH_DPLL_B;
+       } else {
+               dpll_reg = (pipe == PIPE_A) ? DPLL_A: DPLL_B;
+       }
+
+       return (I915_READ(dpll_reg) & DPLL_VCO_ENABLE);
 }
 
 static void i915_save_palette(struct drm_device *dev, enum pipe pipe)
@@ -49,6 +53,9 @@ static void i915_save_palette(struct drm_device *dev, enum pipe pipe)
        if (!i915_pipe_enabled(dev, pipe))
                return;
 
+       if (IS_IRONLAKE(dev))
+               reg = (pipe == PIPE_A) ? LGC_PALETTE_A : LGC_PALETTE_B;
+
        if (pipe == PIPE_A)
                array = dev_priv->save_palette_a;
        else
@@ -68,6 +75,9 @@ static void i915_restore_palette(struct drm_device *dev, enum pipe pipe)
        if (!i915_pipe_enabled(dev, pipe))
                return;
 
+       if (IS_IRONLAKE(dev))
+               reg = (pipe == PIPE_A) ? LGC_PALETTE_A : LGC_PALETTE_B;
+
        if (pipe == PIPE_A)
                array = dev_priv->save_palette_a;
        else
@@ -222,30 +232,26 @@ static void i915_restore_vga(struct drm_device *dev)
        I915_WRITE8(VGA_DACMASK, dev_priv->saveDACMASK);
 }
 
-int i915_save_state(struct drm_device *dev)
+static void i915_save_modeset_reg(struct drm_device *dev)
 {
        struct drm_i915_private *dev_priv = dev->dev_private;
-       int i;
-
-       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);
-
-       /* Hardware status page */
-       dev_priv->saveHWS = I915_READ(HWS_PGA);
 
-       /* Display arbitration control */
-       dev_priv->saveDSPARB = I915_READ(DSPARB);
+       if (drm_core_check_feature(dev, DRIVER_MODESET))
+               return;
 
        /* Pipe & plane A info */
        dev_priv->savePIPEACONF = I915_READ(PIPEACONF);
        dev_priv->savePIPEASRC = I915_READ(PIPEASRC);
-       dev_priv->saveFPA0 = I915_READ(FPA0);
-       dev_priv->saveFPA1 = I915_READ(FPA1);
-       dev_priv->saveDPLL_A = I915_READ(DPLL_A);
-       if (IS_I965G(dev))
+       if (IS_IRONLAKE(dev)) {
+               dev_priv->saveFPA0 = I915_READ(PCH_FPA0);
+               dev_priv->saveFPA1 = I915_READ(PCH_FPA1);
+               dev_priv->saveDPLL_A = I915_READ(PCH_DPLL_A);
+       } else {
+               dev_priv->saveFPA0 = I915_READ(FPA0);
+               dev_priv->saveFPA1 = I915_READ(FPA1);
+               dev_priv->saveDPLL_A = I915_READ(DPLL_A);
+       }
+       if (IS_I965G(dev) && !IS_IRONLAKE(dev))
                dev_priv->saveDPLL_A_MD = I915_READ(DPLL_A_MD);
        dev_priv->saveHTOTAL_A = I915_READ(HTOTAL_A);
        dev_priv->saveHBLANK_A = I915_READ(HBLANK_A);
@@ -253,7 +259,24 @@ int i915_save_state(struct drm_device *dev)
        dev_priv->saveVTOTAL_A = I915_READ(VTOTAL_A);
        dev_priv->saveVBLANK_A = I915_READ(VBLANK_A);
        dev_priv->saveVSYNC_A = I915_READ(VSYNC_A);
-       dev_priv->saveBCLRPAT_A = I915_READ(BCLRPAT_A);
+       if (!IS_IRONLAKE(dev))
+               dev_priv->saveBCLRPAT_A = I915_READ(BCLRPAT_A);
+
+       if (IS_IRONLAKE(dev)) {
+               dev_priv->saveFDI_TXA_CTL = I915_READ(FDI_TXA_CTL);
+               dev_priv->saveFDI_RXA_CTL = I915_READ(FDI_RXA_CTL);
+
+               dev_priv->savePFA_CTL_1 = I915_READ(PFA_CTL_1);
+               dev_priv->savePFA_WIN_SZ = I915_READ(PFA_WIN_SZ);
+               dev_priv->savePFA_WIN_POS = I915_READ(PFA_WIN_POS);
+
+               dev_priv->saveTRANS_HTOTAL_A = I915_READ(TRANS_HTOTAL_A);
+               dev_priv->saveTRANS_HBLANK_A = I915_READ(TRANS_HBLANK_A);
+               dev_priv->saveTRANS_HSYNC_A = I915_READ(TRANS_HSYNC_A);
+               dev_priv->saveTRANS_VTOTAL_A = I915_READ(TRANS_VTOTAL_A);
+               dev_priv->saveTRANS_VBLANK_A = I915_READ(TRANS_VBLANK_A);
+               dev_priv->saveTRANS_VSYNC_A = I915_READ(TRANS_VSYNC_A);
+       }
 
        dev_priv->saveDSPACNTR = I915_READ(DSPACNTR);
        dev_priv->saveDSPASTRIDE = I915_READ(DSPASTRIDE);
@@ -270,10 +293,16 @@ int i915_save_state(struct drm_device *dev)
        /* Pipe & plane B info */
        dev_priv->savePIPEBCONF = I915_READ(PIPEBCONF);
        dev_priv->savePIPEBSRC = I915_READ(PIPEBSRC);
-       dev_priv->saveFPB0 = I915_READ(FPB0);
-       dev_priv->saveFPB1 = I915_READ(FPB1);
-       dev_priv->saveDPLL_B = I915_READ(DPLL_B);
-       if (IS_I965G(dev))
+       if (IS_IRONLAKE(dev)) {
+               dev_priv->saveFPB0 = I915_READ(PCH_FPB0);
+               dev_priv->saveFPB1 = I915_READ(PCH_FPB1);
+               dev_priv->saveDPLL_B = I915_READ(PCH_DPLL_B);
+       } else {
+               dev_priv->saveFPB0 = I915_READ(FPB0);
+               dev_priv->saveFPB1 = I915_READ(FPB1);
+               dev_priv->saveDPLL_B = I915_READ(DPLL_B);
+       }
+       if (IS_I965G(dev) && !IS_IRONLAKE(dev))
                dev_priv->saveDPLL_B_MD = I915_READ(DPLL_B_MD);
        dev_priv->saveHTOTAL_B = I915_READ(HTOTAL_B);
        dev_priv->saveHBLANK_B = I915_READ(HBLANK_B);
@@ -281,7 +310,24 @@ int i915_save_state(struct drm_device *dev)
        dev_priv->saveVTOTAL_B = I915_READ(VTOTAL_B);
        dev_priv->saveVBLANK_B = I915_READ(VBLANK_B);
        dev_priv->saveVSYNC_B = I915_READ(VSYNC_B);
-       dev_priv->saveBCLRPAT_A = I915_READ(BCLRPAT_A);
+       if (!IS_IRONLAKE(dev))
+               dev_priv->saveBCLRPAT_B = I915_READ(BCLRPAT_B);
+
+       if (IS_IRONLAKE(dev)) {
+               dev_priv->saveFDI_TXB_CTL = I915_READ(FDI_TXB_CTL);
+               dev_priv->saveFDI_RXB_CTL = I915_READ(FDI_RXB_CTL);
+
+               dev_priv->savePFB_CTL_1 = I915_READ(PFB_CTL_1);
+               dev_priv->savePFB_WIN_SZ = I915_READ(PFB_WIN_SZ);
+               dev_priv->savePFB_WIN_POS = I915_READ(PFB_WIN_POS);
+
+               dev_priv->saveTRANS_HTOTAL_B = I915_READ(TRANS_HTOTAL_B);
+               dev_priv->saveTRANS_HBLANK_B = I915_READ(TRANS_HBLANK_B);
+               dev_priv->saveTRANS_HSYNC_B = I915_READ(TRANS_HSYNC_B);
+               dev_priv->saveTRANS_VTOTAL_B = I915_READ(TRANS_VTOTAL_B);
+               dev_priv->saveTRANS_VBLANK_B = I915_READ(TRANS_VBLANK_B);
+               dev_priv->saveTRANS_VSYNC_B = I915_READ(TRANS_VSYNC_B);
+       }
 
        dev_priv->saveDSPBCNTR = I915_READ(DSPBCNTR);
        dev_priv->saveDSPBSTRIDE = I915_READ(DSPBSTRIDE);
@@ -294,120 +340,47 @@ int i915_save_state(struct drm_device *dev)
        }
        i915_save_palette(dev, PIPE_B);
        dev_priv->savePIPEBSTAT = I915_READ(PIPEBSTAT);
-
-       /* CRT state */
-       dev_priv->saveADPA = I915_READ(ADPA);
-
-       /* LVDS state */
-       dev_priv->savePP_CONTROL = I915_READ(PP_CONTROL);
-       dev_priv->savePFIT_PGM_RATIOS = I915_READ(PFIT_PGM_RATIOS);
-       dev_priv->saveBLC_PWM_CTL = I915_READ(BLC_PWM_CTL);
-       if (IS_I965G(dev))
-               dev_priv->saveBLC_PWM_CTL2 = I915_READ(BLC_PWM_CTL2);
-       if (IS_MOBILE(dev) && !IS_I830(dev))
-               dev_priv->saveLVDS = I915_READ(LVDS);
-       if (!IS_I830(dev) && !IS_845G(dev))
-               dev_priv->savePFIT_CONTROL = I915_READ(PFIT_CONTROL);
-       dev_priv->savePP_ON_DELAYS = I915_READ(PP_ON_DELAYS);
-       dev_priv->savePP_OFF_DELAYS = I915_READ(PP_OFF_DELAYS);
-       dev_priv->savePP_DIVISOR = I915_READ(PP_DIVISOR);
-
-       /* FIXME: save TV & SDVO state */
-
-       /* FBC state */
-       dev_priv->saveFBC_CFB_BASE = I915_READ(FBC_CFB_BASE);
-       dev_priv->saveFBC_LL_BASE = I915_READ(FBC_LL_BASE);
-       dev_priv->saveFBC_CONTROL2 = I915_READ(FBC_CONTROL2);
-       dev_priv->saveFBC_CONTROL = I915_READ(FBC_CONTROL);
-
-       /* Interrupt state */
-       dev_priv->saveIIR = I915_READ(IIR);
-       dev_priv->saveIER = I915_READ(IER);
-       dev_priv->saveIMR = I915_READ(IMR);
-
-       /* VGA state */
-       dev_priv->saveVGA0 = I915_READ(VGA0);
-       dev_priv->saveVGA1 = I915_READ(VGA1);
-       dev_priv->saveVGA_PD = I915_READ(VGA_PD);
-       dev_priv->saveVGACNTRL = I915_READ(VGACNTRL);
-
-       /* Clock gating state */
-       dev_priv->saveD_STATE = I915_READ(D_STATE);
-       dev_priv->saveCG_2D_DIS = I915_READ(CG_2D_DIS);
-
-       /* 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(SWF00 + (i << 2));
-               dev_priv->saveSWF1[i] = I915_READ(SWF10 + (i << 2));
-       }
-       for (i = 0; i < 3; i++)
-               dev_priv->saveSWF2[i] = I915_READ(SWF30 + (i << 2));
-
-       /* Fences */
-       if (IS_I965G(dev)) {
-               for (i = 0; i < 16; i++)
-                       dev_priv->saveFENCE[i] = I915_READ64(FENCE_REG_965_0 + (i * 8));
-       } else {
-               for (i = 0; i < 8; i++)
-                       dev_priv->saveFENCE[i] = I915_READ(FENCE_REG_830_0 + (i * 4));
-
-               if (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev))
-                       for (i = 0; i < 8; i++)
-                               dev_priv->saveFENCE[i+8] = I915_READ(FENCE_REG_945_8 + (i * 4));
-       }
-       i915_save_vga(dev);
-
-       return 0;
+       return;
 }
 
-int i915_restore_state(struct drm_device *dev)
+static void i915_restore_modeset_reg(struct drm_device *dev)
 {
        struct drm_i915_private *dev_priv = dev->dev_private;
-       int i;
-
-       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);
+       int dpll_a_reg, fpa0_reg, fpa1_reg;
+       int dpll_b_reg, fpb0_reg, fpb1_reg;
 
-       /* Hardware status page */
-       I915_WRITE(HWS_PGA, dev_priv->saveHWS);
-
-       /* Display arbitration */
-       I915_WRITE(DSPARB, dev_priv->saveDSPARB);
+       if (drm_core_check_feature(dev, DRIVER_MODESET))
+               return;
 
-       /* Fences */
-       if (IS_I965G(dev)) {
-               for (i = 0; i < 16; i++)
-                       I915_WRITE64(FENCE_REG_965_0 + (i * 8), dev_priv->saveFENCE[i]);
+       if (IS_IRONLAKE(dev)) {
+               dpll_a_reg = PCH_DPLL_A;
+               dpll_b_reg = PCH_DPLL_B;
+               fpa0_reg = PCH_FPA0;
+               fpb0_reg = PCH_FPB0;
+               fpa1_reg = PCH_FPA1;
+               fpb1_reg = PCH_FPB1;
        } else {
-               for (i = 0; i < 8; i++)
-                       I915_WRITE(FENCE_REG_830_0 + (i * 4), dev_priv->saveFENCE[i]);
-               if (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev))
-                       for (i = 0; i < 8; i++)
-                               I915_WRITE(FENCE_REG_945_8 + (i * 4), dev_priv->saveFENCE[i+8]);
+               dpll_a_reg = DPLL_A;
+               dpll_b_reg = DPLL_B;
+               fpa0_reg = FPA0;
+               fpb0_reg = FPB0;
+               fpa1_reg = FPA1;
+               fpb1_reg = FPB1;
        }
 
        /* Pipe & plane A info */
        /* Prime the clock */
        if (dev_priv->saveDPLL_A & DPLL_VCO_ENABLE) {
-               I915_WRITE(DPLL_A, dev_priv->saveDPLL_A &
+               I915_WRITE(dpll_a_reg, dev_priv->saveDPLL_A &
                           ~DPLL_VCO_ENABLE);
                DRM_UDELAY(150);
        }
-       I915_WRITE(FPA0, dev_priv->saveFPA0);
-       I915_WRITE(FPA1, dev_priv->saveFPA1);
+       I915_WRITE(fpa0_reg, dev_priv->saveFPA0);
+       I915_WRITE(fpa1_reg, dev_priv->saveFPA1);
        /* Actually enable it */
-       I915_WRITE(DPLL_A, dev_priv->saveDPLL_A);
+       I915_WRITE(dpll_a_reg, dev_priv->saveDPLL_A);
        DRM_UDELAY(150);
-       if (IS_I965G(dev))
+       if (IS_I965G(dev) && !IS_IRONLAKE(dev))
                I915_WRITE(DPLL_A_MD, dev_priv->saveDPLL_A_MD);
        DRM_UDELAY(150);
 
@@ -418,7 +391,24 @@ int i915_restore_state(struct drm_device *dev)
        I915_WRITE(VTOTAL_A, dev_priv->saveVTOTAL_A);
        I915_WRITE(VBLANK_A, dev_priv->saveVBLANK_A);
        I915_WRITE(VSYNC_A, dev_priv->saveVSYNC_A);
-       I915_WRITE(BCLRPAT_A, dev_priv->saveBCLRPAT_A);
+       if (!IS_IRONLAKE(dev))
+               I915_WRITE(BCLRPAT_A, dev_priv->saveBCLRPAT_A);
+
+       if (IS_IRONLAKE(dev)) {
+               I915_WRITE(FDI_RXA_CTL, dev_priv->saveFDI_RXA_CTL);
+               I915_WRITE(FDI_TXA_CTL, dev_priv->saveFDI_TXA_CTL);
+
+               I915_WRITE(PFA_CTL_1, dev_priv->savePFA_CTL_1);
+               I915_WRITE(PFA_WIN_SZ, dev_priv->savePFA_WIN_SZ);
+               I915_WRITE(PFA_WIN_POS, dev_priv->savePFA_WIN_POS);
+
+               I915_WRITE(TRANS_HTOTAL_A, dev_priv->saveTRANS_HTOTAL_A);
+               I915_WRITE(TRANS_HBLANK_A, dev_priv->saveTRANS_HBLANK_A);
+               I915_WRITE(TRANS_HSYNC_A, dev_priv->saveTRANS_HSYNC_A);
+               I915_WRITE(TRANS_VTOTAL_A, dev_priv->saveTRANS_VTOTAL_A);
+               I915_WRITE(TRANS_VBLANK_A, dev_priv->saveTRANS_VBLANK_A);
+               I915_WRITE(TRANS_VSYNC_A, dev_priv->saveTRANS_VSYNC_A);
+       }
 
        /* Restore plane info */
        I915_WRITE(DSPASIZE, dev_priv->saveDSPASIZE);
@@ -440,14 +430,14 @@ int i915_restore_state(struct drm_device *dev)
 
        /* Pipe & plane B info */
        if (dev_priv->saveDPLL_B & DPLL_VCO_ENABLE) {
-               I915_WRITE(DPLL_B, dev_priv->saveDPLL_B &
+               I915_WRITE(dpll_b_reg, dev_priv->saveDPLL_B &
                           ~DPLL_VCO_ENABLE);
                DRM_UDELAY(150);
        }
-       I915_WRITE(FPB0, dev_priv->saveFPB0);
-       I915_WRITE(FPB1, dev_priv->saveFPB1);
+       I915_WRITE(fpb0_reg, dev_priv->saveFPB0);
+       I915_WRITE(fpb1_reg, dev_priv->saveFPB1);
        /* Actually enable it */
-       I915_WRITE(DPLL_B, dev_priv->saveDPLL_B);
+       I915_WRITE(dpll_b_reg, dev_priv->saveDPLL_B);
        DRM_UDELAY(150);
        if (IS_I965G(dev))
                I915_WRITE(DPLL_B_MD, dev_priv->saveDPLL_B_MD);
@@ -460,7 +450,24 @@ int i915_restore_state(struct drm_device *dev)
        I915_WRITE(VTOTAL_B, dev_priv->saveVTOTAL_B);
        I915_WRITE(VBLANK_B, dev_priv->saveVBLANK_B);
        I915_WRITE(VSYNC_B, dev_priv->saveVSYNC_B);
-       I915_WRITE(BCLRPAT_B, dev_priv->saveBCLRPAT_B);
+       if (!IS_IRONLAKE(dev))
+               I915_WRITE(BCLRPAT_B, dev_priv->saveBCLRPAT_B);
+
+       if (IS_IRONLAKE(dev)) {
+               I915_WRITE(FDI_RXB_CTL, dev_priv->saveFDI_RXB_CTL);
+               I915_WRITE(FDI_TXB_CTL, dev_priv->saveFDI_TXB_CTL);
+
+               I915_WRITE(PFB_CTL_1, dev_priv->savePFB_CTL_1);
+               I915_WRITE(PFB_WIN_SZ, dev_priv->savePFB_WIN_SZ);
+               I915_WRITE(PFB_WIN_POS, dev_priv->savePFB_WIN_POS);
+
+               I915_WRITE(TRANS_HTOTAL_B, dev_priv->saveTRANS_HTOTAL_B);
+               I915_WRITE(TRANS_HBLANK_B, dev_priv->saveTRANS_HBLANK_B);
+               I915_WRITE(TRANS_HSYNC_B, dev_priv->saveTRANS_HSYNC_B);
+               I915_WRITE(TRANS_VTOTAL_B, dev_priv->saveTRANS_VTOTAL_B);
+               I915_WRITE(TRANS_VBLANK_B, dev_priv->saveTRANS_VBLANK_B);
+               I915_WRITE(TRANS_VSYNC_B, dev_priv->saveTRANS_VSYNC_B);
+       }
 
        /* Restore plane info */
        I915_WRITE(DSPBSIZE, dev_priv->saveDSPBSIZE);
@@ -480,42 +487,321 @@ int i915_restore_state(struct drm_device *dev)
        I915_WRITE(DSPBCNTR, dev_priv->saveDSPBCNTR);
        I915_WRITE(DSPBADDR, I915_READ(DSPBADDR));
 
+       return;
+}
+
+void i915_save_display(struct drm_device *dev)
+{
+       struct drm_i915_private *dev_priv = dev->dev_private;
+
+       /* Display arbitration control */
+       dev_priv->saveDSPARB = I915_READ(DSPARB);
+
+       /* This is only meaningful in non-KMS mode */
+       /* Don't save them in KMS mode */
+       i915_save_modeset_reg(dev);
+
+       /* Cursor state */
+       dev_priv->saveCURACNTR = I915_READ(CURACNTR);
+       dev_priv->saveCURAPOS = I915_READ(CURAPOS);
+       dev_priv->saveCURABASE = I915_READ(CURABASE);
+       dev_priv->saveCURBCNTR = I915_READ(CURBCNTR);
+       dev_priv->saveCURBPOS = I915_READ(CURBPOS);
+       dev_priv->saveCURBBASE = I915_READ(CURBBASE);
+       if (!IS_I9XX(dev))
+               dev_priv->saveCURSIZE = I915_READ(CURSIZE);
+
        /* CRT state */
-       I915_WRITE(ADPA, dev_priv->saveADPA);
+       if (IS_IRONLAKE(dev)) {
+               dev_priv->saveADPA = I915_READ(PCH_ADPA);
+       } else {
+               dev_priv->saveADPA = I915_READ(ADPA);
+       }
 
        /* LVDS state */
-       if (IS_I965G(dev))
+       if (IS_IRONLAKE(dev)) {
+               dev_priv->savePP_CONTROL = I915_READ(PCH_PP_CONTROL);
+               dev_priv->saveBLC_PWM_CTL = I915_READ(BLC_PWM_PCH_CTL1);
+               dev_priv->saveBLC_PWM_CTL2 = I915_READ(BLC_PWM_PCH_CTL2);
+               dev_priv->saveBLC_CPU_PWM_CTL = I915_READ(BLC_PWM_CPU_CTL);
+               dev_priv->saveBLC_CPU_PWM_CTL2 = I915_READ(BLC_PWM_CPU_CTL2);
+               dev_priv->saveLVDS = I915_READ(PCH_LVDS);
+       } else {
+               dev_priv->savePP_CONTROL = I915_READ(PP_CONTROL);
+               dev_priv->savePFIT_PGM_RATIOS = I915_READ(PFIT_PGM_RATIOS);
+               dev_priv->saveBLC_PWM_CTL = I915_READ(BLC_PWM_CTL);
+               dev_priv->saveBLC_HIST_CTL = I915_READ(BLC_HIST_CTL);
+               if (IS_I965G(dev))
+                       dev_priv->saveBLC_PWM_CTL2 = I915_READ(BLC_PWM_CTL2);
+               if (IS_MOBILE(dev) && !IS_I830(dev))
+                       dev_priv->saveLVDS = I915_READ(LVDS);
+       }
+
+       if (!IS_I830(dev) && !IS_845G(dev) && !IS_IRONLAKE(dev))
+               dev_priv->savePFIT_CONTROL = I915_READ(PFIT_CONTROL);
+
+       if (IS_IRONLAKE(dev)) {
+               dev_priv->savePP_ON_DELAYS = I915_READ(PCH_PP_ON_DELAYS);
+               dev_priv->savePP_OFF_DELAYS = I915_READ(PCH_PP_OFF_DELAYS);
+               dev_priv->savePP_DIVISOR = I915_READ(PCH_PP_DIVISOR);
+       } else {
+               dev_priv->savePP_ON_DELAYS = I915_READ(PP_ON_DELAYS);
+               dev_priv->savePP_OFF_DELAYS = I915_READ(PP_OFF_DELAYS);
+               dev_priv->savePP_DIVISOR = I915_READ(PP_DIVISOR);
+       }
+
+       /* Display Port state */
+       if (SUPPORTS_INTEGRATED_DP(dev)) {
+               dev_priv->saveDP_B = I915_READ(DP_B);
+               dev_priv->saveDP_C = I915_READ(DP_C);
+               dev_priv->saveDP_D = I915_READ(DP_D);
+               dev_priv->savePIPEA_GMCH_DATA_M = I915_READ(PIPEA_GMCH_DATA_M);
+               dev_priv->savePIPEB_GMCH_DATA_M = I915_READ(PIPEB_GMCH_DATA_M);
+               dev_priv->savePIPEA_GMCH_DATA_N = I915_READ(PIPEA_GMCH_DATA_N);
+               dev_priv->savePIPEB_GMCH_DATA_N = I915_READ(PIPEB_GMCH_DATA_N);
+               dev_priv->savePIPEA_DP_LINK_M = I915_READ(PIPEA_DP_LINK_M);
+               dev_priv->savePIPEB_DP_LINK_M = I915_READ(PIPEB_DP_LINK_M);
+               dev_priv->savePIPEA_DP_LINK_N = I915_READ(PIPEA_DP_LINK_N);
+               dev_priv->savePIPEB_DP_LINK_N = I915_READ(PIPEB_DP_LINK_N);
+       }
+       /* FIXME: save TV & SDVO state */
+
+       /* FBC state */
+       if (IS_GM45(dev)) {
+               dev_priv->saveDPFC_CB_BASE = I915_READ(DPFC_CB_BASE);
+       } else {
+               dev_priv->saveFBC_CFB_BASE = I915_READ(FBC_CFB_BASE);
+               dev_priv->saveFBC_LL_BASE = I915_READ(FBC_LL_BASE);
+               dev_priv->saveFBC_CONTROL2 = I915_READ(FBC_CONTROL2);
+               dev_priv->saveFBC_CONTROL = I915_READ(FBC_CONTROL);
+       }
+
+       /* VGA state */
+       dev_priv->saveVGA0 = I915_READ(VGA0);
+       dev_priv->saveVGA1 = I915_READ(VGA1);
+       dev_priv->saveVGA_PD = I915_READ(VGA_PD);
+       if (IS_IRONLAKE(dev))
+               dev_priv->saveVGACNTRL = I915_READ(CPU_VGACNTRL);
+       else
+               dev_priv->saveVGACNTRL = I915_READ(VGACNTRL);
+
+       i915_save_vga(dev);
+}
+
+void i915_restore_display(struct drm_device *dev)
+{
+       struct drm_i915_private *dev_priv = dev->dev_private;
+
+       /* Display arbitration */
+       I915_WRITE(DSPARB, dev_priv->saveDSPARB);
+
+       /* Display port ratios (must be done before clock is set) */
+       if (SUPPORTS_INTEGRATED_DP(dev)) {
+               I915_WRITE(PIPEA_GMCH_DATA_M, dev_priv->savePIPEA_GMCH_DATA_M);
+               I915_WRITE(PIPEB_GMCH_DATA_M, dev_priv->savePIPEB_GMCH_DATA_M);
+               I915_WRITE(PIPEA_GMCH_DATA_N, dev_priv->savePIPEA_GMCH_DATA_N);
+               I915_WRITE(PIPEB_GMCH_DATA_N, dev_priv->savePIPEB_GMCH_DATA_N);
+               I915_WRITE(PIPEA_DP_LINK_M, dev_priv->savePIPEA_DP_LINK_M);
+               I915_WRITE(PIPEB_DP_LINK_M, dev_priv->savePIPEB_DP_LINK_M);
+               I915_WRITE(PIPEA_DP_LINK_N, dev_priv->savePIPEA_DP_LINK_N);
+               I915_WRITE(PIPEB_DP_LINK_N, dev_priv->savePIPEB_DP_LINK_N);
+       }
+
+       /* This is only meaningful in non-KMS mode */
+       /* Don't restore them in KMS mode */
+       i915_restore_modeset_reg(dev);
+
+       /* Cursor state */
+       I915_WRITE(CURAPOS, dev_priv->saveCURAPOS);
+       I915_WRITE(CURACNTR, dev_priv->saveCURACNTR);
+       I915_WRITE(CURABASE, dev_priv->saveCURABASE);
+       I915_WRITE(CURBPOS, dev_priv->saveCURBPOS);
+       I915_WRITE(CURBCNTR, dev_priv->saveCURBCNTR);
+       I915_WRITE(CURBBASE, dev_priv->saveCURBBASE);
+       if (!IS_I9XX(dev))
+               I915_WRITE(CURSIZE, dev_priv->saveCURSIZE);
+
+       /* CRT state */
+       if (IS_IRONLAKE(dev))
+               I915_WRITE(PCH_ADPA, dev_priv->saveADPA);
+       else
+               I915_WRITE(ADPA, dev_priv->saveADPA);
+
+       /* LVDS state */
+       if (IS_I965G(dev) && !IS_IRONLAKE(dev))
                I915_WRITE(BLC_PWM_CTL2, dev_priv->saveBLC_PWM_CTL2);
-       if (IS_MOBILE(dev) && !IS_I830(dev))
+
+       if (IS_IRONLAKE(dev)) {
+               I915_WRITE(PCH_LVDS, dev_priv->saveLVDS);
+       } else if (IS_MOBILE(dev) && !IS_I830(dev))
                I915_WRITE(LVDS, dev_priv->saveLVDS);
-       if (!IS_I830(dev) && !IS_845G(dev))
+
+       if (!IS_I830(dev) && !IS_845G(dev) && !IS_IRONLAKE(dev))
                I915_WRITE(PFIT_CONTROL, dev_priv->savePFIT_CONTROL);
 
-       I915_WRITE(PFIT_PGM_RATIOS, dev_priv->savePFIT_PGM_RATIOS);
-       I915_WRITE(BLC_PWM_CTL, dev_priv->saveBLC_PWM_CTL);
-       I915_WRITE(PP_ON_DELAYS, dev_priv->savePP_ON_DELAYS);
-       I915_WRITE(PP_OFF_DELAYS, dev_priv->savePP_OFF_DELAYS);
-       I915_WRITE(PP_DIVISOR, dev_priv->savePP_DIVISOR);
-       I915_WRITE(PP_CONTROL, dev_priv->savePP_CONTROL);
+       if (IS_IRONLAKE(dev)) {
+               I915_WRITE(BLC_PWM_PCH_CTL1, dev_priv->saveBLC_PWM_CTL);
+               I915_WRITE(BLC_PWM_PCH_CTL2, dev_priv->saveBLC_PWM_CTL2);
+               I915_WRITE(BLC_PWM_CPU_CTL, dev_priv->saveBLC_CPU_PWM_CTL);
+               I915_WRITE(BLC_PWM_CPU_CTL2, dev_priv->saveBLC_CPU_PWM_CTL2);
+               I915_WRITE(PCH_PP_ON_DELAYS, dev_priv->savePP_ON_DELAYS);
+               I915_WRITE(PCH_PP_OFF_DELAYS, dev_priv->savePP_OFF_DELAYS);
+               I915_WRITE(PCH_PP_DIVISOR, dev_priv->savePP_DIVISOR);
+               I915_WRITE(PCH_PP_CONTROL, dev_priv->savePP_CONTROL);
+       } else {
+               I915_WRITE(PFIT_PGM_RATIOS, dev_priv->savePFIT_PGM_RATIOS);
+               I915_WRITE(BLC_PWM_CTL, dev_priv->saveBLC_PWM_CTL);
+               I915_WRITE(BLC_HIST_CTL, dev_priv->saveBLC_HIST_CTL);
+               I915_WRITE(PP_ON_DELAYS, dev_priv->savePP_ON_DELAYS);
+               I915_WRITE(PP_OFF_DELAYS, dev_priv->savePP_OFF_DELAYS);
+               I915_WRITE(PP_DIVISOR, dev_priv->savePP_DIVISOR);
+               I915_WRITE(PP_CONTROL, dev_priv->savePP_CONTROL);
+       }
 
+       /* Display Port state */
+       if (SUPPORTS_INTEGRATED_DP(dev)) {
+               I915_WRITE(DP_B, dev_priv->saveDP_B);
+               I915_WRITE(DP_C, dev_priv->saveDP_C);
+               I915_WRITE(DP_D, dev_priv->saveDP_D);
+       }
        /* FIXME: restore TV & SDVO state */
 
        /* FBC info */
-       I915_WRITE(FBC_CFB_BASE, dev_priv->saveFBC_CFB_BASE);
-       I915_WRITE(FBC_LL_BASE, dev_priv->saveFBC_LL_BASE);
-       I915_WRITE(FBC_CONTROL2, dev_priv->saveFBC_CONTROL2);
-       I915_WRITE(FBC_CONTROL, dev_priv->saveFBC_CONTROL);
+       if (IS_GM45(dev)) {
+               g4x_disable_fbc(dev);
+               I915_WRITE(DPFC_CB_BASE, dev_priv->saveDPFC_CB_BASE);
+       } else {
+               i8xx_disable_fbc(dev);
+               I915_WRITE(FBC_CFB_BASE, dev_priv->saveFBC_CFB_BASE);
+               I915_WRITE(FBC_LL_BASE, dev_priv->saveFBC_LL_BASE);
+               I915_WRITE(FBC_CONTROL2, dev_priv->saveFBC_CONTROL2);
+               I915_WRITE(FBC_CONTROL, dev_priv->saveFBC_CONTROL);
+       }
 
        /* VGA state */
-       I915_WRITE(VGACNTRL, dev_priv->saveVGACNTRL);
+       if (IS_IRONLAKE(dev))
+               I915_WRITE(CPU_VGACNTRL, dev_priv->saveVGACNTRL);
+       else
+               I915_WRITE(VGACNTRL, dev_priv->saveVGACNTRL);
        I915_WRITE(VGA0, dev_priv->saveVGA0);
        I915_WRITE(VGA1, dev_priv->saveVGA1);
        I915_WRITE(VGA_PD, dev_priv->saveVGA_PD);
        DRM_UDELAY(150);
 
+       i915_restore_vga(dev);
+}
+
+int i915_save_state(struct drm_device *dev)
+{
+       struct drm_i915_private *dev_priv = dev->dev_private;
+       int i;
+
+       pci_read_config_byte(dev->pdev, LBB, &dev_priv->saveLBB);
+
+       /* Render Standby */
+       if (I915_HAS_RC6(dev)) {
+               dev_priv->saveRENDERSTANDBY = I915_READ(MCHBAR_RENDER_STANDBY);
+               dev_priv->savePWRCTXA = I915_READ(PWRCTXA);
+       }
+
+       /* Hardware status page */
+       dev_priv->saveHWS = I915_READ(HWS_PGA);
+
+       i915_save_display(dev);
+
+       /* Interrupt state */
+       if (IS_IRONLAKE(dev)) {
+               dev_priv->saveDEIER = I915_READ(DEIER);
+               dev_priv->saveDEIMR = I915_READ(DEIMR);
+               dev_priv->saveGTIER = I915_READ(GTIER);
+               dev_priv->saveGTIMR = I915_READ(GTIMR);
+               dev_priv->saveFDI_RXA_IMR = I915_READ(FDI_RXA_IMR);
+               dev_priv->saveFDI_RXB_IMR = I915_READ(FDI_RXB_IMR);
+       } else {
+               dev_priv->saveIER = I915_READ(IER);
+               dev_priv->saveIMR = I915_READ(IMR);
+       }
+
+       /* Clock gating state */
+       dev_priv->saveD_STATE = I915_READ(D_STATE);
+       dev_priv->saveDSPCLK_GATE_D = I915_READ(DSPCLK_GATE_D); /* Not sure about this */
+
+       /* 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(SWF00 + (i << 2));
+               dev_priv->saveSWF1[i] = I915_READ(SWF10 + (i << 2));
+       }
+       for (i = 0; i < 3; i++)
+               dev_priv->saveSWF2[i] = I915_READ(SWF30 + (i << 2));
+
+       /* Fences */
+       if (IS_I965G(dev)) {
+               for (i = 0; i < 16; i++)
+                       dev_priv->saveFENCE[i] = I915_READ64(FENCE_REG_965_0 + (i * 8));
+       } else {
+               for (i = 0; i < 8; i++)
+                       dev_priv->saveFENCE[i] = I915_READ(FENCE_REG_830_0 + (i * 4));
+
+               if (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev))
+                       for (i = 0; i < 8; i++)
+                               dev_priv->saveFENCE[i+8] = I915_READ(FENCE_REG_945_8 + (i * 4));
+       }
+
+       return 0;
+}
+
+int i915_restore_state(struct drm_device *dev)
+{
+       struct drm_i915_private *dev_priv = dev->dev_private;
+       int i;
+
+       pci_write_config_byte(dev->pdev, LBB, dev_priv->saveLBB);
+
+       /* Render Standby */
+       if (I915_HAS_RC6(dev)) {
+               I915_WRITE(MCHBAR_RENDER_STANDBY, dev_priv->saveRENDERSTANDBY);
+               I915_WRITE(PWRCTXA, dev_priv->savePWRCTXA);
+       }
+
+       /* Hardware status page */
+       I915_WRITE(HWS_PGA, dev_priv->saveHWS);
+
+       /* Fences */
+       if (IS_I965G(dev)) {
+               for (i = 0; i < 16; i++)
+                       I915_WRITE64(FENCE_REG_965_0 + (i * 8), dev_priv->saveFENCE[i]);
+       } else {
+               for (i = 0; i < 8; i++)
+                       I915_WRITE(FENCE_REG_830_0 + (i * 4), dev_priv->saveFENCE[i]);
+               if (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev))
+                       for (i = 0; i < 8; i++)
+                               I915_WRITE(FENCE_REG_945_8 + (i * 4), dev_priv->saveFENCE[i+8]);
+       }
+
+       i915_restore_display(dev);
+
+       /* Interrupt state */
+       if (IS_IRONLAKE(dev)) {
+               I915_WRITE(DEIER, dev_priv->saveDEIER);
+               I915_WRITE(DEIMR, dev_priv->saveDEIMR);
+               I915_WRITE(GTIER, dev_priv->saveGTIER);
+               I915_WRITE(GTIMR, dev_priv->saveGTIMR);
+               I915_WRITE(FDI_RXA_IMR, dev_priv->saveFDI_RXA_IMR);
+               I915_WRITE(FDI_RXB_IMR, dev_priv->saveFDI_RXB_IMR);
+       } else {
+               I915_WRITE (IER, dev_priv->saveIER);
+               I915_WRITE (IMR,  dev_priv->saveIMR);
+       }
+
        /* Clock gating state */
        I915_WRITE (D_STATE, dev_priv->saveD_STATE);
-       I915_WRITE (CG_2D_DIS, dev_priv->saveCG_2D_DIS);
+       I915_WRITE (DSPCLK_GATE_D, dev_priv->saveDSPCLK_GATE_D);
 
        /* Cache mode state */
        I915_WRITE (CACHE_MODE_0, dev_priv->saveCACHE_MODE_0 | 0xffff0000);
@@ -525,12 +811,13 @@ int i915_restore_state(struct drm_device *dev)
 
        for (i = 0; i < 16; i++) {
                I915_WRITE(SWF00 + (i << 2), dev_priv->saveSWF0[i]);
-               I915_WRITE(SWF10 + (i << 2), dev_priv->saveSWF1[i+7]);
+               I915_WRITE(SWF10 + (i << 2), dev_priv->saveSWF1[i]);
        }
        for (i = 0; i < 3; i++)
                I915_WRITE(SWF30 + (i << 2), dev_priv->saveSWF2[i]);
 
-       i915_restore_vga(dev);
+       /* I2C state */
+       intel_i2c_reset_gmbus(dev);
 
        return 0;
 }