8 files changed, 486 insertions, 95 deletions

diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c
index 92aeb918e0c0..e5b138be45fa 100644
--- a/drivers/gpu/drm/i915/i915_dma.c
+++ b/drivers/gpu/drm/i915/i915_dma.c
@@ -1227,8 +1227,7 @@ static int i915_load_modeset_init(struct drm_device *dev,
                 goto out;
 
         /* Try to set up FBC with a reasonable compressed buffer size */
-        if (IS_MOBILE(dev) && (IS_I9XX(dev) || IS_I965G(dev) || IS_GM45(dev)) &&
-            i915_powersave) {
+        if (I915_HAS_FBC(dev) && i915_powersave) {
                 int cfb_size;
 
                 /* Try to get an 8M buffer... */
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index c5df2234418d..57204e298975 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -296,6 +296,12 @@ typedef struct drm_i915_private {
         u32 saveVBLANK_A;
         u32 saveVSYNC_A;
         u32 saveBCLRPAT_A;
+        u32 saveTRANS_HTOTAL_A;
+        u32 saveTRANS_HBLANK_A;
+        u32 saveTRANS_HSYNC_A;
+        u32 saveTRANS_VTOTAL_A;
+        u32 saveTRANS_VBLANK_A;
+        u32 saveTRANS_VSYNC_A;
         u32 savePIPEASTAT;
         u32 saveDSPASTRIDE;
         u32 saveDSPASIZE;
@@ -304,8 +310,11 @@ typedef struct drm_i915_private {
         u32 saveDSPASURF;
         u32 saveDSPATILEOFF;
         u32 savePFIT_PGM_RATIOS;
+        u32 saveBLC_HIST_CTL;
         u32 saveBLC_PWM_CTL;
         u32 saveBLC_PWM_CTL2;
+        u32 saveBLC_CPU_PWM_CTL;
+        u32 saveBLC_CPU_PWM_CTL2;
         u32 saveFPB0;
         u32 saveFPB1;
         u32 saveDPLL_B;
@@ -317,6 +326,12 @@ typedef struct drm_i915_private {
         u32 saveVBLANK_B;
         u32 saveVSYNC_B;
         u32 saveBCLRPAT_B;
+        u32 saveTRANS_HTOTAL_B;
+        u32 saveTRANS_HBLANK_B;
+        u32 saveTRANS_HSYNC_B;
+        u32 saveTRANS_VTOTAL_B;
+        u32 saveTRANS_VBLANK_B;
+        u32 saveTRANS_VSYNC_B;
         u32 savePIPEBSTAT;
         u32 saveDSPBSTRIDE;
         u32 saveDSPBSIZE;
@@ -342,6 +357,7 @@ typedef struct drm_i915_private {
         u32 savePFIT_CONTROL;
         u32 save_palette_a[256];
         u32 save_palette_b[256];
+        u32 saveDPFC_CB_BASE;
         u32 saveFBC_CFB_BASE;
         u32 saveFBC_LL_BASE;
         u32 saveFBC_CONTROL;
@@ -349,6 +365,12 @@ typedef struct drm_i915_private {
         u32 saveIER;
         u32 saveIIR;
         u32 saveIMR;
+        u32 saveDEIER;
+        u32 saveDEIMR;
+        u32 saveGTIER;
+        u32 saveGTIMR;
+        u32 saveFDI_RXA_IMR;
+        u32 saveFDI_RXB_IMR;
         u32 saveCACHE_MODE_0;
         u32 saveD_STATE;
         u32 saveDSPCLK_GATE_D;
@@ -382,6 +404,16 @@ typedef struct drm_i915_private {
         u32 savePIPEB_DP_LINK_M;
         u32 savePIPEA_DP_LINK_N;
         u32 savePIPEB_DP_LINK_N;
+        u32 saveFDI_RXA_CTL;
+        u32 saveFDI_TXA_CTL;
+        u32 saveFDI_RXB_CTL;
+        u32 saveFDI_TXB_CTL;
+        u32 savePFA_CTL_1;
+        u32 savePFB_CTL_1;
+        u32 savePFA_WIN_SZ;
+        u32 savePFB_WIN_SZ;
+        u32 savePFA_WIN_POS;
+        u32 savePFB_WIN_POS;
 
         struct {
                 struct drm_mm gtt_space;
@@ -492,6 +524,8 @@ typedef struct drm_i915_private {
                 struct drm_i915_gem_phys_object *phys_objs[I915_MAX_PHYS_OBJECT];
         } mm;
         struct sdvo_device_mapping sdvo_mappings[2];
+        /* indicate whether the LVDS_BORDER should be enabled or not */
+        unsigned int lvds_border_bits;
 
         /* Reclocking support */
         bool render_reclock_avail;
@@ -981,7 +1015,10 @@ extern int i915_wait_ring(struct drm_device * dev, int n, const char *caller);
 
 #define HAS_FW_BLC(dev) (IS_I9XX(dev) || IS_G4X(dev) || IS_IGDNG(dev))
 #define HAS_PIPE_CXSR(dev) (IS_G4X(dev) || IS_IGDNG(dev))
-#define I915_HAS_FBC(dev) (IS_MOBILE(dev) && (IS_I9XX(dev) || IS_I965G(dev)))
+#define I915_HAS_FBC(dev) (IS_MOBILE(dev) && \
+                           (IS_I9XX(dev) || IS_GM45(dev)) && \
+                           !IS_IGD(dev) && \
+                           !IS_IGDNG(dev))
 
 #define PRIMARY_RINGBUFFER_SIZE         (128*1024)
 
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 0466ddbeba32..1687edf68795 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -968,6 +968,8 @@
 #define   LVDS_PORT_EN                  (1 << 31)
 /* Selects pipe B for LVDS data.  Must be set on pre-965. */
 #define   LVDS_PIPEB_SELECT             (1 << 30)
+/* Enable border for unscaled (or aspect-scaled) display */
+#define   LVDS_BORDER_ENABLE            (1 << 15)
 /*
  * Enables the A0-A2 data pairs and CLKA, containing 18 bits of color data per
  * pixel.
@@ -1078,6 +1080,8 @@
 #define   BACKLIGHT_DUTY_CYCLE_SHIFT            (0)
 #define   BACKLIGHT_DUTY_CYCLE_MASK             (0xffff)
 
+#define BLC_HIST_CTL            0x61260
+
 /* TV port control */
 #define TV_CTL                  0x68000
 /** Enables the TV encoder */
@@ -1780,6 +1784,11 @@
 #define   PIPE_START_VBLANK_INTERRUPT_STATUS    (1UL<<2) /* 965 or later */
 #define   PIPE_VBLANK_INTERRUPT_STATUS          (1UL<<1)
 #define   PIPE_OVERLAY_UPDATED_STATUS           (1UL<<0)
+#define   PIPE_BPC_MASK                         (7 << 5) /* Ironlake */
+#define   PIPE_8BPC                             (0 << 5)
+#define   PIPE_10BPC                            (1 << 5)
+#define   PIPE_6BPC                             (2 << 5)
+#define   PIPE_12BPC                            (3 << 5)
 
 #define DSPARB                  0x70030
 #define   DSPARB_CSTART_MASK    (0x7f << 7)
@@ -1790,17 +1799,29 @@
 #define   DSPARB_AEND_SHIFT     0
 
 #define DSPFW1                  0x70034
+#define   DSPFW_SR_SHIFT        23
+#define   DSPFW_CURSORB_SHIFT   16
+#define   DSPFW_PLANEB_SHIFT    8
 #define DSPFW2                  0x70038
+#define   DSPFW_CURSORA_MASK    0x00003f00
+#define   DSPFW_CURSORA_SHIFT   16
 #define DSPFW3                  0x7003c
+#define   DSPFW_HPLL_SR_EN      (1<<31)
+#define   DSPFW_CURSOR_SR_SHIFT 24
 #define   IGD_SELF_REFRESH_EN   (1<<30)
 
 /* FIFO watermark sizes etc */
+#define G4X_FIFO_LINE_SIZE      64
 #define I915_FIFO_LINE_SIZE     64
 #define I830_FIFO_LINE_SIZE     32
+
+#define G4X_FIFO_SIZE           127
 #define I945_FIFO_SIZE          127 /* 945 & 965 */
 #define I915_FIFO_SIZE          95
 #define I855GM_FIFO_SIZE        127 /* In cachelines */
 #define I830_FIFO_SIZE          95
+
+#define G4X_MAX_WM              0x3f
 #define I915_MAX_WM             0x3f
 
 #define IGD_DISPLAY_FIFO        512 /* in 64byte unit */
@@ -2030,6 +2051,11 @@
 #define PFA_CTL_1               0x68080
 #define PFB_CTL_1               0x68880
 #define  PF_ENABLE              (1<<31)
+#define  PF_FILTER_MASK         (3<<23)
+#define  PF_FILTER_PROGRAMMED   (0<<23)
+#define  PF_FILTER_MED_3x3      (1<<23)
+#define  PF_FILTER_EDGE_ENHANCE (2<<23)
+#define  PF_FILTER_EDGE_SOFTEN  (3<<23)
 #define PFA_WIN_SZ              0x68074
 #define PFB_WIN_SZ              0x68874
 #define PFA_WIN_POS             0x68070
@@ -2149,11 +2175,11 @@
 #define  DREF_CPU_SOURCE_OUTPUT_MASK            (3<<13)
 #define  DREF_SSC_SOURCE_DISABLE                (0<<11)
 #define  DREF_SSC_SOURCE_ENABLE                 (2<<11)
-#define  DREF_SSC_SOURCE_MASK                   (2<<11)
+#define  DREF_SSC_SOURCE_MASK                   (3<<11)
 #define  DREF_NONSPREAD_SOURCE_DISABLE          (0<<9)
 #define  DREF_NONSPREAD_CK505_ENABLE            (1<<9)
 #define  DREF_NONSPREAD_SOURCE_ENABLE           (2<<9)
-#define  DREF_NONSPREAD_SOURCE_MASK             (2<<9)
+#define  DREF_NONSPREAD_SOURCE_MASK             (3<<9)
 #define  DREF_SUPERSPREAD_SOURCE_DISABLE        (0<<7)
 #define  DREF_SUPERSPREAD_SOURCE_ENABLE         (2<<7)
 #define  DREF_SSC4_DOWNSPREAD                   (0<<6)
diff --git a/drivers/gpu/drm/i915/i915_suspend.c b/drivers/gpu/drm/i915/i915_suspend.c
index bd6d8d91ca9f..992d5617e798 100644
--- a/drivers/gpu/drm/i915/i915_suspend.c
+++ b/drivers/gpu/drm/i915/i915_suspend.c
@@ -32,11 +32,15 @@
 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_IGDNG(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_IGDNG(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_IGDNG(dev))
+                reg = (pipe == PIPE_A) ? LGC_PALETTE_A : LGC_PALETTE_B;
+
         if (pipe == PIPE_A)
                 array = dev_priv->save_palette_a;
         else
@@ -232,10 +242,16 @@ static void i915_save_modeset_reg(struct drm_device *dev)
         /* 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_IGDNG(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_IGDNG(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);
@@ -243,7 +259,24 @@ static void i915_save_modeset_reg(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_IGDNG(dev))
+                dev_priv->saveBCLRPAT_A = I915_READ(BCLRPAT_A);
+
+        if (IS_IGDNG(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);
@@ -260,10 +293,16 @@ static void i915_save_modeset_reg(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_IGDNG(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_IGDNG(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);
@@ -271,7 +310,24 @@ static void i915_save_modeset_reg(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_IGDNG(dev))
+                dev_priv->saveBCLRPAT_B = I915_READ(BCLRPAT_B);
+
+        if (IS_IGDNG(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);
@@ -290,23 +346,41 @@ static void i915_save_modeset_reg(struct drm_device *dev)
 static void i915_restore_modeset_reg(struct drm_device *dev)
 {
         struct drm_i915_private *dev_priv = dev->dev_private;
+        int dpll_a_reg, fpa0_reg, fpa1_reg;
+        int dpll_b_reg, fpb0_reg, fpb1_reg;
 
         if (drm_core_check_feature(dev, DRIVER_MODESET))
                 return;
 
+        if (IS_IGDNG(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 {
+                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_IGDNG(dev))
                 I915_WRITE(DPLL_A_MD, dev_priv->saveDPLL_A_MD);
         DRM_UDELAY(150);
 
@@ -317,7 +391,24 @@ static void i915_restore_modeset_reg(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_IGDNG(dev))
+                I915_WRITE(BCLRPAT_A, dev_priv->saveBCLRPAT_A);
+
+        if (IS_IGDNG(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);
@@ -339,14 +430,14 @@ static void i915_restore_modeset_reg(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);
@@ -359,7 +450,24 @@ static void i915_restore_modeset_reg(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_IGDNG(dev))
+                I915_WRITE(BCLRPAT_B, dev_priv->saveBCLRPAT_B);
+
+        if (IS_IGDNG(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);
@@ -404,21 +512,43 @@ void i915_save_display(struct drm_device *dev)
                 dev_priv->saveCURSIZE = I915_READ(CURSIZE);
 
         /* CRT state */
-        dev_priv->saveADPA = I915_READ(ADPA);
+        if (IS_IGDNG(dev)) {
+                dev_priv->saveADPA = I915_READ(PCH_ADPA);
+        } else {
+                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))
+        if (IS_IGDNG(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_IGDNG(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);
+
+        if (IS_IGDNG(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)) {
@@ -437,16 +567,23 @@ void i915_save_display(struct drm_device *dev)
         /* 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);
+        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);
-        dev_priv->saveVGACNTRL = I915_READ(VGACNTRL);
+        if (IS_IGDNG(dev))
+                dev_priv->saveVGACNTRL = I915_READ(CPU_VGACNTRL);
+        else
+                dev_priv->saveVGACNTRL = I915_READ(VGACNTRL);
 
         i915_save_vga(dev);
 }
@@ -485,22 +622,41 @@ void i915_restore_display(struct drm_device *dev)
                 I915_WRITE(CURSIZE, dev_priv->saveCURSIZE);
 
         /* CRT state */
-        I915_WRITE(ADPA, dev_priv->saveADPA);
+        if (IS_IGDNG(dev))
+                I915_WRITE(PCH_ADPA, dev_priv->saveADPA);
+        else
+                I915_WRITE(ADPA, dev_priv->saveADPA);
 
         /* LVDS state */
-        if (IS_I965G(dev))
+        if (IS_I965G(dev) && !IS_IGDNG(dev))
                 I915_WRITE(BLC_PWM_CTL2, dev_priv->saveBLC_PWM_CTL2);
-        if (IS_MOBILE(dev) && !IS_I830(dev))
+
+        if (IS_IGDNG(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_IGDNG(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_IGDNG(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)) {
@@ -511,13 +667,22 @@ void i915_restore_display(struct drm_device *dev)
         /* 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_IGDNG(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);
@@ -543,8 +708,17 @@ int i915_save_state(struct drm_device *dev)
         i915_save_display(dev);
 
         /* Interrupt state */
-        dev_priv->saveIER = I915_READ(IER);
-        dev_priv->saveIMR = I915_READ(IMR);
+        if (IS_IGDNG(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);
@@ -609,8 +783,17 @@ int i915_restore_state(struct drm_device *dev)
         i915_restore_display(dev);
 
         /* Interrupt state */
-        I915_WRITE (IER, dev_priv->saveIER);
-        I915_WRITE (IMR,  dev_priv->saveIMR);
+        if (IS_IGDNG(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);
diff --git a/drivers/gpu/drm/i915/intel_bios.c b/drivers/gpu/drm/i915/intel_bios.c
index 4337414846b6..96cd256e60e6 100644
--- a/drivers/gpu/drm/i915/intel_bios.c
+++ b/drivers/gpu/drm/i915/intel_bios.c
@@ -351,20 +351,18 @@ parse_driver_features(struct drm_i915_private *dev_priv,
         struct drm_device *dev = dev_priv->dev;
         struct bdb_driver_features *driver;
 
-        /* set default for chips without eDP */
-        if (!SUPPORTS_EDP(dev)) {
-                dev_priv->edp_support = 0;
-                return;
-        }
-
         driver = find_section(bdb, BDB_DRIVER_FEATURES);
         if (!driver)
                 return;
 
-        if (driver->lvds_config == BDB_DRIVER_FEATURE_EDP)
+        if (driver && SUPPORTS_EDP(dev) &&
+            driver->lvds_config == BDB_DRIVER_FEATURE_EDP) {
                 dev_priv->edp_support = 1;
+        } else {
+                dev_priv->edp_support = 0;
+        }
 
-        if (driver->dual_frequency)
+        if (driver && driver->dual_frequency)
                 dev_priv->render_reclock_avail = true;
 }
 
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 3c14240cc002..3ba6546b7c7f 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -943,6 +943,7 @@ intel_find_pll_g4x_dp(const intel_limit_t *limit, struct drm_crtc *crtc,
     clock.m = 5 * (clock.m1 + 2) + (clock.m2 + 2);
     clock.p = (clock.p1 * clock.p2);
     clock.dot = 96000 * clock.m / (clock.n + 2) / clock.p;
+    clock.vco = 0;
     memcpy(best_clock, &clock, sizeof(intel_clock_t));
     return true;
 }
@@ -1260,9 +1261,11 @@ intel_pipe_set_base(struct drm_crtc *crtc, int x, int y,
                 return ret;
         }
 
-        /* Pre-i965 needs to install a fence for tiled scan-out */
-        if (!IS_I965G(dev) &&
-            obj_priv->fence_reg == I915_FENCE_REG_NONE &&
+        /* Install a fence for tiled scan-out. Pre-i965 always needs a fence,
+         * whereas 965+ only requires a fence if using framebuffer compression.
+         * For simplicity, we always install a fence as the cost is not that onerous.
+         */
+        if (obj_priv->fence_reg == I915_FENCE_REG_NONE &&
             obj_priv->tiling_mode != I915_TILING_NONE) {
                 ret = i915_gem_object_get_fence_reg(obj);
                 if (ret != 0) {
@@ -1513,7 +1516,7 @@ static void igdng_crtc_dpms(struct drm_crtc *crtc, int mode)
                 /* Enable panel fitting for LVDS */
                 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) {
                         temp = I915_READ(pf_ctl_reg);
-                        I915_WRITE(pf_ctl_reg, temp | PF_ENABLE);
+                        I915_WRITE(pf_ctl_reg, temp | PF_ENABLE | PF_FILTER_MED_3x3);
 
                         /* currently full aspect */
                         I915_WRITE(pf_win_pos, 0);
@@ -1801,6 +1804,8 @@ static void i9xx_crtc_dpms(struct drm_crtc *crtc, int mode)
         case DRM_MODE_DPMS_ON:
         case DRM_MODE_DPMS_STANDBY:
         case DRM_MODE_DPMS_SUSPEND:
+                intel_update_watermarks(dev);
+
                 /* Enable the DPLL */
                 temp = I915_READ(dpll_reg);
                 if ((temp & DPLL_VCO_ENABLE) == 0) {
@@ -1838,7 +1843,6 @@ static void i9xx_crtc_dpms(struct drm_crtc *crtc, int mode)
 
                 /* Give the overlay scaler a chance to enable if it's on this pipe */
                 //intel_crtc_dpms_video(crtc, true); TODO
-                intel_update_watermarks(dev);
         break;
         case DRM_MODE_DPMS_OFF:
                 intel_update_watermarks(dev);
@@ -2082,7 +2086,7 @@ fdi_reduce_ratio(u32 *num, u32 *den)
 #define LINK_N 0x80000
 
 static void
-igdng_compute_m_n(int bytes_per_pixel, int nlanes,
+igdng_compute_m_n(int bits_per_pixel, int nlanes,
                 int pixel_clock, int link_clock,
                 struct fdi_m_n *m_n)
 {
@@ -2092,7 +2096,8 @@ igdng_compute_m_n(int bytes_per_pixel, int nlanes,
 
         temp = (u64) DATA_N * pixel_clock;
         temp = div_u64(temp, link_clock);
-        m_n->gmch_m = div_u64(temp * bytes_per_pixel, nlanes);
+        m_n->gmch_m = div_u64(temp * bits_per_pixel, nlanes);
+        m_n->gmch_m >>= 3; /* convert to bytes_per_pixel */
         m_n->gmch_n = DATA_N;
         fdi_reduce_ratio(&m_n->gmch_m, &m_n->gmch_n);
 
@@ -2140,6 +2145,13 @@ static struct intel_watermark_params igd_cursor_hplloff_wm = {
         IGD_CURSOR_GUARD_WM,
         IGD_FIFO_LINE_SIZE
 };
+static struct intel_watermark_params g4x_wm_info = {
+        G4X_FIFO_SIZE,
+        G4X_MAX_WM,
+        G4X_MAX_WM,
+        2,
+        G4X_FIFO_LINE_SIZE,
+};
 static struct intel_watermark_params i945_wm_info = {
         I945_FIFO_SIZE,
         I915_MAX_WM,
@@ -2430,17 +2442,74 @@ static int i830_get_fifo_size(struct drm_device *dev, int plane)
         return size;
 }
 
-static void g4x_update_wm(struct drm_device *dev, int unused, int unused2,
-                          int unused3, int unused4)
+static void g4x_update_wm(struct drm_device *dev,  int planea_clock,
+                          int planeb_clock, int sr_hdisplay, int pixel_size)
 {
         struct drm_i915_private *dev_priv = dev->dev_private;
-        u32 fw_blc_self = I915_READ(FW_BLC_SELF);
+        int total_size, cacheline_size;
+        int planea_wm, planeb_wm, cursora_wm, cursorb_wm, cursor_sr;
+        struct intel_watermark_params planea_params, planeb_params;
+        unsigned long line_time_us;
+        int sr_clock, sr_entries = 0, entries_required;
 
-        if (i915_powersave)
-                fw_blc_self |= FW_BLC_SELF_EN;
-        else
-                fw_blc_self &= ~FW_BLC_SELF_EN;
-        I915_WRITE(FW_BLC_SELF, fw_blc_self);
+        /* Create copies of the base settings for each pipe */
+        planea_params = planeb_params = g4x_wm_info;
+
+        /* Grab a couple of global values before we overwrite them */
+        total_size = planea_params.fifo_size;
+        cacheline_size = planea_params.cacheline_size;
+
+        /*
+         * Note: we need to make sure we don't overflow for various clock &
+         * latency values.
+         * clocks go from a few thousand to several hundred thousand.
+         * latency is usually a few thousand
+         */
+        entries_required = ((planea_clock / 1000) * pixel_size * latency_ns) /
+                1000;
+        entries_required /= G4X_FIFO_LINE_SIZE;
+        planea_wm = entries_required + planea_params.guard_size;
+
+        entries_required = ((planeb_clock / 1000) * pixel_size * latency_ns) /
+                1000;
+        entries_required /= G4X_FIFO_LINE_SIZE;
+        planeb_wm = entries_required + planeb_params.guard_size;
+
+        cursora_wm = cursorb_wm = 16;
+        cursor_sr = 32;
+
+        DRM_DEBUG("FIFO watermarks - A: %d, B: %d\n", planea_wm, planeb_wm);
+
+        /* Calc sr entries for one plane configs */
+        if (sr_hdisplay && (!planea_clock || !planeb_clock)) {
+                /* self-refresh has much higher latency */
+                const static int sr_latency_ns = 12000;
+
+                sr_clock = planea_clock ? planea_clock : planeb_clock;
+                line_time_us = ((sr_hdisplay * 1000) / sr_clock);
+
+                /* Use ns/us then divide to preserve precision */
+                sr_entries = (((sr_latency_ns / line_time_us) + 1) *
+                              pixel_size * sr_hdisplay) / 1000;
+                sr_entries = roundup(sr_entries / cacheline_size, 1);
+                DRM_DEBUG("self-refresh entries: %d\n", sr_entries);
+                I915_WRITE(FW_BLC_SELF, FW_BLC_SELF_EN);
+        }
+
+        DRM_DEBUG("Setting FIFO watermarks - A: %d, B: %d, SR %d\n",
+                  planea_wm, planeb_wm, sr_entries);
+
+        planea_wm &= 0x3f;
+        planeb_wm &= 0x3f;
+
+        I915_WRITE(DSPFW1, (sr_entries << DSPFW_SR_SHIFT) |
+                   (cursorb_wm << DSPFW_CURSORB_SHIFT) |
+                   (planeb_wm << DSPFW_PLANEB_SHIFT) | planea_wm);
+        I915_WRITE(DSPFW2, (I915_READ(DSPFW2) & DSPFW_CURSORA_MASK) |
+                   (cursora_wm << DSPFW_CURSORA_SHIFT));
+        /* HPLL off in SR has some issues on G4x... disable it */
+        I915_WRITE(DSPFW3, (I915_READ(DSPFW3) & ~DSPFW_HPLL_SR_EN) |
+                   (cursor_sr << DSPFW_CURSOR_SR_SHIFT));
 }
 
 static void i965_update_wm(struct drm_device *dev, int unused, int unused2,
@@ -2586,6 +2655,9 @@ static void intel_update_watermarks(struct drm_device *dev)
         unsigned long planea_clock = 0, planeb_clock = 0, sr_clock = 0;
         int enabled = 0, pixel_size = 0;
 
+        if (!dev_priv->display.update_wm)
+                return;
+
         /* Get the clock config from both planes */
         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
                 intel_crtc = to_intel_crtc(crtc);
@@ -2763,7 +2835,7 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc,
 
         /* FDI link */
         if (IS_IGDNG(dev)) {
-                int lane, link_bw;
+                int lane, link_bw, bpp;
                 /* eDP doesn't require FDI link, so just set DP M/N
                    according to current link config */
                 if (is_edp) {
@@ -2782,10 +2854,72 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc,
                         lane = 4;
                         link_bw = 270000;
                 }
-                igdng_compute_m_n(3, lane, target_clock,
+
+                /* determine panel color depth */
+                temp = I915_READ(pipeconf_reg);
+
+                switch (temp & PIPE_BPC_MASK) {
+                case PIPE_8BPC:
+                        bpp = 24;
+                        break;
+                case PIPE_10BPC:
+                        bpp = 30;
+                        break;
+                case PIPE_6BPC:
+                        bpp = 18;
+                        break;
+                case PIPE_12BPC:
+                        bpp = 36;
+                        break;
+                default:
+                        DRM_ERROR("unknown pipe bpc value\n");
+                        bpp = 24;
+                }
+
+                igdng_compute_m_n(bpp, lane, target_clock,
                                   link_bw, &m_n);
         }
 
+        /* Ironlake: try to setup display ref clock before DPLL
+         * enabling. This is only under driver's control after
+         * PCH B stepping, previous chipset stepping should be
+         * ignoring this setting.
+         */
+        if (IS_IGDNG(dev)) {
+                temp = I915_READ(PCH_DREF_CONTROL);
+                /* Always enable nonspread source */
+                temp &= ~DREF_NONSPREAD_SOURCE_MASK;
+                temp |= DREF_NONSPREAD_SOURCE_ENABLE;
+                I915_WRITE(PCH_DREF_CONTROL, temp);
+                POSTING_READ(PCH_DREF_CONTROL);
+
+                temp &= ~DREF_SSC_SOURCE_MASK;
+                temp |= DREF_SSC_SOURCE_ENABLE;
+                I915_WRITE(PCH_DREF_CONTROL, temp);
+                POSTING_READ(PCH_DREF_CONTROL);
+
+                udelay(200);
+
+                if (is_edp) {
+                        if (dev_priv->lvds_use_ssc) {
+                                temp |= DREF_SSC1_ENABLE;
+                                I915_WRITE(PCH_DREF_CONTROL, temp);
+                                POSTING_READ(PCH_DREF_CONTROL);
+
+                                udelay(200);
+
+                                temp &= ~DREF_CPU_SOURCE_OUTPUT_MASK;
+                                temp |= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD;
+                                I915_WRITE(PCH_DREF_CONTROL, temp);
+                                POSTING_READ(PCH_DREF_CONTROL);
+                        } else {
+                                temp |= DREF_CPU_SOURCE_OUTPUT_NONSPREAD;
+                                I915_WRITE(PCH_DREF_CONTROL, temp);
+                                POSTING_READ(PCH_DREF_CONTROL);
+                        }
+                }
+        }
+
         if (IS_IGD(dev)) {
                 fp = (1 << clock.n) << 16 | clock.m1 << 8 | clock.m2;
                 if (has_reduced_clock)
@@ -2936,6 +3070,8 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc,
 
                 lvds = I915_READ(lvds_reg);
                 lvds |= LVDS_PORT_EN | LVDS_A0A2_CLKA_POWER_UP | LVDS_PIPEB_SELECT;
+                /* set the corresponsding LVDS_BORDER bit */
+                lvds |= dev_priv->lvds_border_bits;
                 /* Set the B0-B3 data pairs corresponding to whether we're going to
                  * set the DPLLs for dual-channel mode or not.
                  */
@@ -4124,7 +4260,9 @@ void intel_init_clock_gating(struct drm_device *dev)
          * Disable clock gating reported to work incorrectly according to the
          * specs, but enable as much else as we can.
          */
-        if (IS_G4X(dev)) {
+        if (IS_IGDNG(dev)) {
+                return;
+        } else if (IS_G4X(dev)) {
                 uint32_t dspclk_gate;
                 I915_WRITE(RENCLK_GATE_D1, 0);
                 I915_WRITE(RENCLK_GATE_D2, VF_UNIT_CLOCK_GATE_DISABLE |
@@ -4212,7 +4350,9 @@ static void intel_init_display(struct drm_device *dev)
                         i830_get_display_clock_speed;
 
         /* For FIFO watermark updates */
-        if (IS_G4X(dev))
+        if (IS_IGDNG(dev))
+                dev_priv->display.update_wm = NULL;
+        else if (IS_G4X(dev))
                 dev_priv->display.update_wm = g4x_update_wm;
         else if (IS_I965G(dev))
                 dev_priv->display.update_wm = i965_update_wm;
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index f4856a510476..d83447557f9b 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -400,7 +400,7 @@ intel_dp_i2c_init(struct intel_output *intel_output, const char *name)
 {
         struct intel_dp_priv   *dp_priv = intel_output->dev_priv;
 
-        DRM_ERROR("i2c_init %s\n", name);
+        DRM_DEBUG_KMS("i2c_init %s\n", name);
         dp_priv->algo.running = false;
         dp_priv->algo.address = 0;
         dp_priv->algo.aux_ch = intel_dp_i2c_aux_ch;
diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c
index 808bbe412ba8..05598ae10c4b 100644
--- a/drivers/gpu/drm/i915/intel_lvds.c
+++ b/drivers/gpu/drm/i915/intel_lvds.c
@@ -380,7 +380,7 @@ static bool intel_lvds_mode_fixup(struct drm_encoder *encoder,
                                 adjusted_mode->crtc_vblank_start + vsync_pos;
                 /* keep the vsync width constant */
                 adjusted_mode->crtc_vsync_end =
-                                adjusted_mode->crtc_vblank_start + vsync_width;
+                                adjusted_mode->crtc_vsync_start + vsync_width;
                 border = 1;
                 break;
         case DRM_MODE_SCALE_ASPECT:
@@ -526,6 +526,14 @@ out:
         lvds_priv->pfit_control = pfit_control;
         lvds_priv->pfit_pgm_ratios = pfit_pgm_ratios;
         /*
+         * When there exists the border, it means that the LVDS_BORDR
+         * should be enabled.
+         */
+        if (border)
+                dev_priv->lvds_border_bits |= LVDS_BORDER_ENABLE;
+        else
+                dev_priv->lvds_border_bits &= ~(LVDS_BORDER_ENABLE);
+        /*
          * XXX: It would be nice to support lower refresh rates on the
          * panels to reduce power consumption, and perhaps match the
          * user's requested refresh rate.