26 files changed, 1245 insertions, 432 deletions
diff --git a/drivers/char/agp/intel-gtt.c b/drivers/char/agp/intel-gtt.c
index 85151019dde1..80a7ed0a7df5 100644
--- a/drivers/char/agp/intel-gtt.c
+++ b/drivers/char/agp/intel-gtt.c
@@ -923,6 +923,9 @@ static int intel_fake_agp_insert_entries(struct agp_memory *mem,
 {
        int ret = -EINVAL;
+        if (intel_private.base.do_idle_maps)
+                return -ENODEV;
        if (intel_private.clear_fake_agp) {
                int start = intel_private.base.stolen_size / PAGE_SIZE;
                int end = intel_private.base.gtt_mappable_entries;
@@ -985,6 +988,9 @@ static int intel_fake_agp_remove_entries(struct agp_memory *mem,
        if (mem->page_count == 0)
                return 0;
+        if (intel_private.base.do_idle_maps)
+                return -ENODEV;
        intel_gtt_clear_range(pg_start, mem->page_count);
        if (intel_private.base.needs_dmar) {
@@ -1177,6 +1183,25 @@ static void gen6_cleanup(void)
 {
 }
+/* Certain Gen5 chipsets require require idling the GPU before
+ * unmapping anything from the GTT when VT-d is enabled.
+ */
+extern int intel_iommu_gfx_mapped;
+static inline int needs_idle_maps(void)
+{
+        const unsigned short gpu_devid = intel_private.pcidev->device;
+        /* Query intel_iommu to see if we need the workaround. Presumably that
+         * was loaded first.
+         */
+        if ((gpu_devid == PCI_DEVICE_ID_INTEL_IRONLAKE_M_HB ||
+             gpu_devid == PCI_DEVICE_ID_INTEL_IRONLAKE_M_IG) &&
+             intel_iommu_gfx_mapped)
+                return 1;
+        return 0;
+}
 static int i9xx_setup(void)
 {
        u32 reg_addr;
@@ -1211,6 +1236,9 @@ static int i9xx_setup(void)
                intel_private.gtt_bus_addr = reg_addr + gtt_offset;
        }
+        if (needs_idle_maps());
+                intel_private.base.do_idle_maps = 1;
        intel_i9xx_setup_flush();
        return 0;
diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c
index d76da389f521..2eac955dee18 100644
--- a/drivers/gpu/drm/i915/i915_dma.c
+++ b/drivers/gpu/drm/i915/i915_dma.c
@@ -2035,7 +2035,9 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags)
        spin_lock_init(&dev_priv->error_lock);
        spin_lock_init(&dev_priv->rps_lock);
-        if (IS_MOBILE(dev) || !IS_GEN2(dev))
+        if (IS_IVYBRIDGE(dev))
+                dev_priv->num_pipe = 3;
+        else if (IS_MOBILE(dev) || !IS_GEN2(dev))
                dev_priv->num_pipe = 2;
        else
                dev_priv->num_pipe = 1;
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index c96b019a3b76..4c8d681c2151 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -79,11 +79,11 @@ MODULE_PARM_DESC(lvds_downclock,
                "Use panel (LVDS/eDP) downclocking for power savings "
                "(default: false)");
-unsigned int i915_panel_use_ssc __read_mostly = 1;
+unsigned int i915_panel_use_ssc __read_mostly = -1;
 module_param_named(lvds_use_ssc, i915_panel_use_ssc, int, 0600);
 MODULE_PARM_DESC(lvds_use_ssc,
                "Use Spread Spectrum Clock with panels [LVDS/eDP] "
-                "(default: true)");
+                "(default: auto from VBT)");
 int i915_vbt_sdvo_panel_type __read_mostly = -1;
 module_param_named(vbt_sdvo_panel_type, i915_vbt_sdvo_panel_type, int, 0600);
@@ -471,6 +471,9 @@ static int i915_drm_thaw(struct drm_device *dev)
                error = i915_gem_init_ringbuffer(dev);
                mutex_unlock(&dev->struct_mutex);
+                if (HAS_PCH_SPLIT(dev))
+                        ironlake_init_pch_refclk(dev);
                drm_mode_config_reset(dev);
                drm_irq_install(dev);
@@ -895,3 +898,43 @@ module_exit(i915_exit);
 MODULE_AUTHOR(DRIVER_AUTHOR);
 MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_LICENSE("GPL and additional rights");
+/* We give fast paths for the really cool registers */
+#define NEEDS_FORCE_WAKE(dev_priv, reg) \
+        (((dev_priv)->info->gen >= 6) && \
+        ((reg) < 0x40000) && \
+        ((reg) != FORCEWAKE))
+#define __i915_read(x, y) \
+u##x i915_read##x(struct drm_i915_private *dev_priv, u32 reg) { \
+        u##x val = 0; \
+        if (NEEDS_FORCE_WAKE((dev_priv), (reg))) { \
+                gen6_gt_force_wake_get(dev_priv); \
+                val = read##y(dev_priv->regs + reg); \
+                gen6_gt_force_wake_put(dev_priv); \
+        } else { \
+                val = read##y(dev_priv->regs + reg); \
+        } \
+        trace_i915_reg_rw(false, reg, val, sizeof(val)); \
+        return val; \
+}
+__i915_read(8, b)
+__i915_read(16, w)
+__i915_read(32, l)
+__i915_read(64, q)
+#undef __i915_read
+#define __i915_write(x, y) \
+void i915_write##x(struct drm_i915_private *dev_priv, u32 reg, u##x val) { \
+        trace_i915_reg_rw(true, reg, val, sizeof(val)); \
+        if (NEEDS_FORCE_WAKE((dev_priv), (reg))) { \
+                __gen6_gt_wait_for_fifo(dev_priv); \
+        } \
+        write##y(val, dev_priv->regs + reg); \
+}
+__i915_write(8, b)
+__i915_write(16, w)
+__i915_write(32, l)
+__i915_write(64, q)
+#undef __i915_write
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 15c0ca58ad8b..06a37f4fd74b 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -139,7 +139,6 @@ struct sdvo_device_mapping {
        u8 slave_addr;
        u8 dvo_wiring;
        u8 i2c_pin;
-        u8 i2c_speed;
        u8 ddc_pin;
 };
@@ -349,7 +348,6 @@ typedef struct drm_i915_private {
        /* LVDS info */
        int backlight_level;  /* restore backlight to this value */
        bool backlight_enabled;
-        struct drm_display_mode *panel_fixed_mode;
        struct drm_display_mode *lfp_lvds_vbt_mode; /* if any */
        struct drm_display_mode *sdvo_lvds_vbt_mode; /* if any */
@@ -359,6 +357,7 @@ typedef struct drm_i915_private {
        unsigned int lvds_vbt:1;
        unsigned int int_crt_support:1;
        unsigned int lvds_use_ssc:1;
+        unsigned int display_clock_mode:1;
        int lvds_ssc_freq;
        struct {
                int rate;
@@ -674,10 +673,9 @@ typedef struct drm_i915_private {
        unsigned int lvds_border_bits;
        /* Panel fitter placement and size for Ironlake+ */
        u32 pch_pf_pos, pch_pf_size;
-        int panel_t3, panel_t12;
-        struct drm_crtc *plane_to_crtc_mapping[2];
+        struct drm_crtc *plane_to_crtc_mapping[3];
-        struct drm_crtc *pipe_to_crtc_mapping[2];
+        struct drm_crtc *pipe_to_crtc_mapping[3];
        wait_queue_head_t pending_flip_queue;
        bool flip_pending_is_done;
@@ -1303,6 +1301,7 @@ extern int intel_modeset_vga_set_state(struct drm_device *dev, bool state);
 extern bool intel_fbc_enabled(struct drm_device *dev);
 extern void intel_disable_fbc(struct drm_device *dev);
 extern bool ironlake_set_drps(struct drm_device *dev, u8 val);
+extern void ironlake_init_pch_refclk(struct drm_device *dev);
 extern void ironlake_enable_rc6(struct drm_device *dev);
 extern void gen6_set_rps(struct drm_device *dev, u8 val);
 extern void intel_detect_pch(struct drm_device *dev);
@@ -1356,18 +1355,7 @@ void __gen6_gt_wait_for_fifo(struct drm_i915_private *dev_priv);
        ((reg) != FORCEWAKE))
 #define __i915_read(x, y) \
-static inline u##x i915_read##x(struct drm_i915_private *dev_priv, u32 reg) { \
+        u##x i915_read##x(struct drm_i915_private *dev_priv, u32 reg);
-        u##x val = 0; \
-        if (NEEDS_FORCE_WAKE((dev_priv), (reg))) { \
-                gen6_gt_force_wake_get(dev_priv); \
-                val = read##y(dev_priv->regs + reg); \
-                gen6_gt_force_wake_put(dev_priv); \
-        } else { \
-                val = read##y(dev_priv->regs + reg); \
-        } \
-        trace_i915_reg_rw(false, reg, val, sizeof(val)); \
-        return val; \
-}
 __i915_read(8, b)
 __i915_read(16, w)
@@ -1376,13 +1364,8 @@ __i915_read(64, q)
 #undef __i915_read
 #define __i915_write(x, y) \
-static inline void i915_write##x(struct drm_i915_private *dev_priv, u32 reg, u##x val) { \
+        void i915_write##x(struct drm_i915_private *dev_priv, u32 reg, u##x val);
-        trace_i915_reg_rw(true, reg, val, sizeof(val)); \
-        if (NEEDS_FORCE_WAKE((dev_priv), (reg))) { \
-                __gen6_gt_wait_for_fifo(dev_priv); \
-        } \
-        write##y(val, dev_priv->regs + reg); \
-}
 __i915_write(8, b)
 __i915_write(16, w)
 __i915_write(32, l)
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index f0f885f44b87..6651c36b6e8a 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -195,6 +195,8 @@ i915_gem_create(struct drm_file *file,
        u32 handle;
        size = roundup(size, PAGE_SIZE);
+        if (size == 0)
+                return -EINVAL;
        /* Allocate the new object */
        obj = i915_gem_alloc_object(dev, size);
@@ -800,11 +802,11 @@ i915_gem_shmem_pwrite_fast(struct drm_device *dev,
                if (IS_ERR(page))
                        return PTR_ERR(page);
-                vaddr = kmap_atomic(page, KM_USER0);
+                vaddr = kmap_atomic(page);
                ret = __copy_from_user_inatomic(vaddr + page_offset,
                                                user_data,
                                                page_length);
-                kunmap_atomic(vaddr, KM_USER0);
+                kunmap_atomic(vaddr);
                set_page_dirty(page);
                mark_page_accessed(page);
@@ -1476,7 +1478,7 @@ i915_gem_object_get_pages_gtt(struct drm_i915_gem_object *obj,
                obj->pages[i] = page;
        }
-        if (obj->tiling_mode != I915_TILING_NONE)
+        if (i915_gem_object_needs_bit17_swizzle(obj))
                i915_gem_object_do_bit_17_swizzle(obj);
        return 0;
@@ -1498,7 +1500,7 @@ i915_gem_object_put_pages_gtt(struct drm_i915_gem_object *obj)
        BUG_ON(obj->madv == __I915_MADV_PURGED);
-        if (obj->tiling_mode != I915_TILING_NONE)
+        if (i915_gem_object_needs_bit17_swizzle(obj))
                i915_gem_object_save_bit_17_swizzle(obj);
        if (obj->madv == I915_MADV_DONTNEED)
@@ -2191,14 +2193,8 @@ int
 i915_gpu_idle(struct drm_device *dev)
 {
        drm_i915_private_t *dev_priv = dev->dev_private;
-        bool lists_empty;
        int ret, i;
-        lists_empty = (list_empty(&dev_priv->mm.flushing_list) &&
-                       list_empty(&dev_priv->mm.active_list));
-        if (lists_empty)
-                return 0;
        /* Flush everything onto the inactive list. */
        for (i = 0; i < I915_NUM_RINGS; i++) {
                ret = i915_ring_idle(&dev_priv->ring[i]);
diff --git a/drivers/gpu/drm/i915/i915_gem_debug.c b/drivers/gpu/drm/i915/i915_gem_debug.c
index ac908757e176..cc93cac242d6 100644
--- a/drivers/gpu/drm/i915/i915_gem_debug.c
+++ b/drivers/gpu/drm/i915/i915_gem_debug.c
@@ -157,7 +157,7 @@ i915_gem_object_check_coherency(struct drm_i915_gem_object *obj, int handle)
        for (page = 0; page < obj->size / PAGE_SIZE; page++) {
                int i;
-                backing_map = kmap_atomic(obj->pages[page], KM_USER0);
+                backing_map = kmap_atomic(obj->pages[page]);
                if (backing_map == NULL) {
                        DRM_ERROR("failed to map backing page\n");
@@ -181,13 +181,13 @@ i915_gem_object_check_coherency(struct drm_i915_gem_object *obj, int handle)
                                }
                        }
                }
-                kunmap_atomic(backing_map, KM_USER0);
+                kunmap_atomic(backing_map);
                backing_map = NULL;
        }
 out:
        if (backing_map != NULL)
-                kunmap_atomic(backing_map, KM_USER0);
+                kunmap_atomic(backing_map);
        iounmap(gtt_mapping);
        /* give syslog time to catch up */
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index 7a709cd8d543..6042c5e6d278 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -49,6 +49,28 @@ static unsigned int cache_level_to_agp_type(struct drm_device *dev,
        }
 }
+static bool do_idling(struct drm_i915_private *dev_priv)
+{
+        bool ret = dev_priv->mm.interruptible;
+        if (unlikely(dev_priv->mm.gtt->do_idle_maps)) {
+                dev_priv->mm.interruptible = false;
+                if (i915_gpu_idle(dev_priv->dev)) {
+                        DRM_ERROR("Couldn't idle GPU\n");
+                        /* Wait a bit, in hopes it avoids the hang */
+                        udelay(10);
+                }
+        }
+        return ret;
+}
+static void undo_idling(struct drm_i915_private *dev_priv, bool interruptible)
+{
+        if (unlikely(dev_priv->mm.gtt->do_idle_maps))
+                dev_priv->mm.interruptible = interruptible;
+}
 void i915_gem_restore_gtt_mappings(struct drm_device *dev)
 {
        struct drm_i915_private *dev_priv = dev->dev_private;
@@ -117,6 +139,12 @@ void i915_gem_gtt_rebind_object(struct drm_i915_gem_object *obj,
 void i915_gem_gtt_unbind_object(struct drm_i915_gem_object *obj)
 {
+        struct drm_device *dev = obj->base.dev;
+        struct drm_i915_private *dev_priv = dev->dev_private;
+        bool interruptible;
+        interruptible = do_idling(dev_priv);
        intel_gtt_clear_range(obj->gtt_space->start >> PAGE_SHIFT,
                              obj->base.size >> PAGE_SHIFT);
@@ -124,4 +152,6 @@ void i915_gem_gtt_unbind_object(struct drm_i915_gem_object *obj)
                intel_gtt_unmap_memory(obj->sg_list, obj->num_sg);
                obj->sg_list = NULL;
        }
+        undo_idling(dev_priv, interruptible);
 }
diff --git a/drivers/gpu/drm/i915/i915_gem_tiling.c b/drivers/gpu/drm/i915/i915_gem_tiling.c
index 99c4faa59d8f..31d334d9d9da 100644
--- a/drivers/gpu/drm/i915/i915_gem_tiling.c
+++ b/drivers/gpu/drm/i915/i915_gem_tiling.c
@@ -92,7 +92,10 @@ i915_gem_detect_bit_6_swizzle(struct drm_device *dev)
        uint32_t swizzle_x = I915_BIT_6_SWIZZLE_UNKNOWN;
        uint32_t swizzle_y = I915_BIT_6_SWIZZLE_UNKNOWN;
-        if (INTEL_INFO(dev)->gen >= 5) {
+        if (INTEL_INFO(dev)->gen >= 6) {
+                swizzle_x = I915_BIT_6_SWIZZLE_NONE;
+                swizzle_y = I915_BIT_6_SWIZZLE_NONE;
+        } else if (IS_GEN5(dev)) {
                /* On Ironlake whatever DRAM config, GPU always do
                 * same swizzling setup.
                 */
@@ -440,14 +443,9 @@ i915_gem_swizzle_page(struct page *page)
 void
 i915_gem_object_do_bit_17_swizzle(struct drm_i915_gem_object *obj)
 {
-        struct drm_device *dev = obj->base.dev;
-        drm_i915_private_t *dev_priv = dev->dev_private;
        int page_count = obj->base.size >> PAGE_SHIFT;
        int i;
-        if (dev_priv->mm.bit_6_swizzle_x != I915_BIT_6_SWIZZLE_9_10_17)
-                return;
        if (obj->bit_17 == NULL)
                return;
@@ -464,14 +462,9 @@ i915_gem_object_do_bit_17_swizzle(struct drm_i915_gem_object *obj)
 void
 i915_gem_object_save_bit_17_swizzle(struct drm_i915_gem_object *obj)
 {
-        struct drm_device *dev = obj->base.dev;
-        drm_i915_private_t *dev_priv = dev->dev_private;
        int page_count = obj->base.size >> PAGE_SHIFT;
        int i;
-        if (dev_priv->mm.bit_6_swizzle_x != I915_BIT_6_SWIZZLE_9_10_17)
-                return;
        if (obj->bit_17 == NULL) {
                obj->bit_17 = kmalloc(BITS_TO_LONGS(page_count) *
                                           sizeof(long), GFP_KERNEL);
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 012732b6ec25..9ee2729fe5c6 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -383,6 +383,7 @@ static void gen6_pm_rps_work(struct work_struct *work)
        pm_iir = dev_priv->pm_iir;
        dev_priv->pm_iir = 0;
        pm_imr = I915_READ(GEN6_PMIMR);
+        I915_WRITE(GEN6_PMIMR, 0);
        spin_unlock_irq(&dev_priv->rps_lock);
        if (!pm_iir)
@@ -420,7 +421,6 @@ static void gen6_pm_rps_work(struct work_struct *work)
         * an *extremely* unlikely race with gen6_rps_enable() that is prevented
         * by holding struct_mutex for the duration of the write.
         */
-        I915_WRITE(GEN6_PMIMR, pm_imr & ~pm_iir);
        mutex_unlock(&dev_priv->dev->struct_mutex);
 }
@@ -536,8 +536,9 @@ static irqreturn_t ivybridge_irq_handler(DRM_IRQ_ARGS)
                unsigned long flags;
                spin_lock_irqsave(&dev_priv->rps_lock, flags);
                WARN(dev_priv->pm_iir & pm_iir, "Missed a PM interrupt\n");
-                I915_WRITE(GEN6_PMIMR, pm_iir);
                dev_priv->pm_iir |= pm_iir;
+                I915_WRITE(GEN6_PMIMR, dev_priv->pm_iir);
+                POSTING_READ(GEN6_PMIMR);
                spin_unlock_irqrestore(&dev_priv->rps_lock, flags);
                queue_work(dev_priv->wq, &dev_priv->rps_work);
        }
@@ -649,8 +650,9 @@ static irqreturn_t ironlake_irq_handler(DRM_IRQ_ARGS)
                unsigned long flags;
                spin_lock_irqsave(&dev_priv->rps_lock, flags);
                WARN(dev_priv->pm_iir & pm_iir, "Missed a PM interrupt\n");
-                I915_WRITE(GEN6_PMIMR, pm_iir);
                dev_priv->pm_iir |= pm_iir;
+                I915_WRITE(GEN6_PMIMR, dev_priv->pm_iir);
+                POSTING_READ(GEN6_PMIMR);
                spin_unlock_irqrestore(&dev_priv->rps_lock, flags);
                queue_work(dev_priv->wq, &dev_priv->rps_work);
        }
@@ -1777,6 +1779,26 @@ static void ironlake_irq_preinstall(struct drm_device *dev)
        POSTING_READ(SDEIER);
 }
+/*
+ * Enable digital hotplug on the PCH, and configure the DP short pulse
+ * duration to 2ms (which is the minimum in the Display Port spec)
+ *
+ * This register is the same on all known PCH chips.
+ */
+static void ironlake_enable_pch_hotplug(struct drm_device *dev)
+{
+        drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
+        u32     hotplug;
+        hotplug = I915_READ(PCH_PORT_HOTPLUG);
+        hotplug &= ~(PORTD_PULSE_DURATION_MASK|PORTC_PULSE_DURATION_MASK|PORTB_PULSE_DURATION_MASK);
+        hotplug |= PORTD_HOTPLUG_ENABLE | PORTD_PULSE_DURATION_2ms;
+        hotplug |= PORTC_HOTPLUG_ENABLE | PORTC_PULSE_DURATION_2ms;
+        hotplug |= PORTB_HOTPLUG_ENABLE | PORTB_PULSE_DURATION_2ms;
+        I915_WRITE(PCH_PORT_HOTPLUG, hotplug);
+}
 static int ironlake_irq_postinstall(struct drm_device *dev)
 {
        drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
@@ -1839,6 +1861,8 @@ static int ironlake_irq_postinstall(struct drm_device *dev)
        I915_WRITE(SDEIER, hotplug_mask);
        POSTING_READ(SDEIER);
+        ironlake_enable_pch_hotplug(dev);
        if (IS_IRONLAKE_M(dev)) {
                /* Clear & enable PCU event interrupts */
                I915_WRITE(DEIIR, DE_PCU_EVENT);
@@ -1896,6 +1920,8 @@ static int ivybridge_irq_postinstall(struct drm_device *dev)
        I915_WRITE(SDEIER, hotplug_mask);
        POSTING_READ(SDEIER);
+        ironlake_enable_pch_hotplug(dev);
        return 0;
 }
@@ -2020,6 +2046,10 @@ static void ironlake_irq_uninstall(struct drm_device *dev)
        I915_WRITE(GTIMR, 0xffffffff);
        I915_WRITE(GTIER, 0x0);
        I915_WRITE(GTIIR, I915_READ(GTIIR));
+        I915_WRITE(SDEIMR, 0xffffffff);
+        I915_WRITE(SDEIER, 0x0);
+        I915_WRITE(SDEIIR, I915_READ(SDEIIR));
 }
 static void i915_driver_irq_uninstall(struct drm_device * dev)
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 138eae15becd..5a09416e611f 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -242,16 +242,22 @@
 #define   ASYNC_FLIP                (1<<22)
 #define   DISPLAY_PLANE_A           (0<<20)
 #define   DISPLAY_PLANE_B           (1<<20)
-#define GFX_OP_PIPE_CONTROL     ((0x3<<29)|(0x3<<27)|(0x2<<24)|2)
+#define GFX_OP_PIPE_CONTROL(len)        ((0x3<<29)|(0x3<<27)|(0x2<<24)|(len-2))
-#define   PIPE_CONTROL_QW_WRITE (1<<14)
+#define   PIPE_CONTROL_CS_STALL                         (1<<20)
-#define   PIPE_CONTROL_DEPTH_STALL (1<<13)
+#define   PIPE_CONTROL_QW_WRITE                         (1<<14)
-#define   PIPE_CONTROL_WC_FLUSH (1<<12)
+#define   PIPE_CONTROL_DEPTH_STALL                      (1<<13)
-#define   PIPE_CONTROL_IS_FLUSH (1<<11) /* MBZ on Ironlake */
+#define   PIPE_CONTROL_WRITE_FLUSH                      (1<<12)
-#define   PIPE_CONTROL_TC_FLUSH (1<<10) /* GM45+ only */
+#define   PIPE_CONTROL_RENDER_TARGET_CACHE_FLUSH        (1<<12) /* gen6+ */
-#define   PIPE_CONTROL_ISP_DIS  (1<<9)
+#define   PIPE_CONTROL_INSTRUCTION_CACHE_INVALIDATE     (1<<11) /* MBZ on Ironlake */
-#define   PIPE_CONTROL_NOTIFY   (1<<8)
+#define   PIPE_CONTROL_TEXTURE_CACHE_INVALIDATE         (1<<10) /* GM45+ only */
+#define   PIPE_CONTROL_INDIRECT_STATE_DISABLE           (1<<9)
+#define   PIPE_CONTROL_NOTIFY                           (1<<8)
+#define   PIPE_CONTROL_VF_CACHE_INVALIDATE              (1<<4)
+#define   PIPE_CONTROL_CONST_CACHE_INVALIDATE           (1<<3)
+#define   PIPE_CONTROL_STATE_CACHE_INVALIDATE           (1<<2)
+#define   PIPE_CONTROL_STALL_AT_SCOREBOARD              (1<<1)
+#define   PIPE_CONTROL_DEPTH_CACHE_FLUSH                (1<<0)
 #define   PIPE_CONTROL_GLOBAL_GTT (1<<2) /* in addr dword */
-#define   PIPE_CONTROL_STALL_EN (1<<1) /* in addr word, Ironlake+ only */
 /*
@@ -2429,6 +2435,7 @@
 #define  WM0_PIPE_CURSOR_MASK   (0x1f)
 #define WM0_PIPEB_ILK           0x45104
+#define WM0_PIPEC_IVB           0x45200
 #define WM1_LP_ILK              0x45108
 #define  WM1_LP_SR_EN           (1<<31)
 #define  WM1_LP_LATENCY_SHIFT   24
@@ -2567,10 +2574,18 @@
 #define _CURBBASE               0x700c4
 #define _CURBPOS                        0x700c8
+#define _CURBCNTR_IVB           0x71080
+#define _CURBBASE_IVB           0x71084
+#define _CURBPOS_IVB            0x71088
 #define CURCNTR(pipe) _PIPE(pipe, _CURACNTR, _CURBCNTR)
 #define CURBASE(pipe) _PIPE(pipe, _CURABASE, _CURBBASE)
 #define CURPOS(pipe) _PIPE(pipe, _CURAPOS, _CURBPOS)
+#define CURCNTR_IVB(pipe) _PIPE(pipe, _CURACNTR, _CURBCNTR_IVB)
+#define CURBASE_IVB(pipe) _PIPE(pipe, _CURABASE, _CURBBASE_IVB)
+#define CURPOS_IVB(pipe) _PIPE(pipe, _CURAPOS, _CURBPOS_IVB)
 /* Display A control */
 #define _DSPACNTR                0x70180
 #define   DISPLAY_PLANE_ENABLE                  (1<<31)
@@ -2916,12 +2931,13 @@
 #define SDEIER  0xc400c
 /* digital port hotplug */
-#define PCH_PORT_HOTPLUG        0xc4030
+#define PCH_PORT_HOTPLUG        0xc4030         /* SHOTPLUG_CTL */
 #define PORTD_HOTPLUG_ENABLE            (1 << 20)
 #define PORTD_PULSE_DURATION_2ms        (0)
 #define PORTD_PULSE_DURATION_4_5ms      (1 << 18)
 #define PORTD_PULSE_DURATION_6ms        (2 << 18)
 #define PORTD_PULSE_DURATION_100ms      (3 << 18)
+#define PORTD_PULSE_DURATION_MASK       (3 << 18)
 #define PORTD_HOTPLUG_NO_DETECT         (0)
 #define PORTD_HOTPLUG_SHORT_DETECT      (1 << 16)
 #define PORTD_HOTPLUG_LONG_DETECT       (1 << 17)
@@ -2930,6 +2946,7 @@
 #define PORTC_PULSE_DURATION_4_5ms      (1 << 10)
 #define PORTC_PULSE_DURATION_6ms        (2 << 10)
 #define PORTC_PULSE_DURATION_100ms      (3 << 10)
+#define PORTC_PULSE_DURATION_MASK       (3 << 10)
 #define PORTC_HOTPLUG_NO_DETECT         (0)
 #define PORTC_HOTPLUG_SHORT_DETECT      (1 << 8)
 #define PORTC_HOTPLUG_LONG_DETECT       (1 << 9)
@@ -2938,6 +2955,7 @@
 #define PORTB_PULSE_DURATION_4_5ms      (1 << 2)
 #define PORTB_PULSE_DURATION_6ms        (2 << 2)
 #define PORTB_PULSE_DURATION_100ms      (3 << 2)
+#define PORTB_PULSE_DURATION_MASK       (3 << 2)
 #define PORTB_HOTPLUG_NO_DETECT         (0)
 #define PORTB_HOTPLUG_SHORT_DETECT      (1 << 0)
 #define PORTB_HOTPLUG_LONG_DETECT       (1 << 1)
@@ -2958,15 +2976,15 @@
 #define _PCH_DPLL_A              0xc6014
 #define _PCH_DPLL_B              0xc6018
-#define PCH_DPLL(pipe) _PIPE(pipe, _PCH_DPLL_A, _PCH_DPLL_B)
+#define PCH_DPLL(pipe) (pipe == 0 ?  _PCH_DPLL_A : _PCH_DPLL_B)
 #define _PCH_FPA0                0xc6040
 #define  FP_CB_TUNE             (0x3<<22)
 #define _PCH_FPA1                0xc6044
 #define _PCH_FPB0                0xc6048
 #define _PCH_FPB1                0xc604c
-#define PCH_FP0(pipe) _PIPE(pipe, _PCH_FPA0, _PCH_FPB0)
+#define PCH_FP0(pipe) (pipe == 0 ? _PCH_FPA0 : _PCH_FPB0)
-#define PCH_FP1(pipe) _PIPE(pipe, _PCH_FPA1, _PCH_FPB1)
+#define PCH_FP1(pipe) (pipe == 0 ? _PCH_FPA1 : _PCH_FPB1)
 #define PCH_DPLL_TEST           0xc606c
@@ -3180,6 +3198,7 @@
 #define  FDI_LINK_TRAIN_NONE_IVB            (3<<8)
 /* both Tx and Rx */
+#define  FDI_COMPOSITE_SYNC             (1<<11)
 #define  FDI_LINK_TRAIN_AUTO            (1<<10)
 #define  FDI_SCRAMBLING_ENABLE          (0<<7)
 #define  FDI_SCRAMBLING_DISABLE         (1<<7)
@@ -3321,15 +3340,35 @@
 #define PCH_PP_STATUS           0xc7200
 #define PCH_PP_CONTROL          0xc7204
 #define  PANEL_UNLOCK_REGS      (0xabcd << 16)
+#define  PANEL_UNLOCK_MASK      (0xffff << 16)
 #define  EDP_FORCE_VDD          (1 << 3)
 #define  EDP_BLC_ENABLE         (1 << 2)
 #define  PANEL_POWER_RESET      (1 << 1)
 #define  PANEL_POWER_OFF        (0 << 0)
 #define  PANEL_POWER_ON         (1 << 0)
 #define PCH_PP_ON_DELAYS        0xc7208
+#define  PANEL_PORT_SELECT_MASK (3 << 30)
+#define  PANEL_PORT_SELECT_LVDS (0 << 30)
+#define  PANEL_PORT_SELECT_DPA  (1 << 30)
 #define  EDP_PANEL              (1 << 30)
+#define  PANEL_PORT_SELECT_DPC  (2 << 30)
+#define  PANEL_PORT_SELECT_DPD  (3 << 30)
+#define  PANEL_POWER_UP_DELAY_MASK      (0x1fff0000)
+#define  PANEL_POWER_UP_DELAY_SHIFT     16
+#define  PANEL_LIGHT_ON_DELAY_MASK      (0x1fff)
+#define  PANEL_LIGHT_ON_DELAY_SHIFT     0
 #define PCH_PP_OFF_DELAYS       0xc720c
+#define  PANEL_POWER_DOWN_DELAY_MASK    (0x1fff0000)
+#define  PANEL_POWER_DOWN_DELAY_SHIFT   16
+#define  PANEL_LIGHT_OFF_DELAY_MASK     (0x1fff)
+#define  PANEL_LIGHT_OFF_DELAY_SHIFT    0
 #define PCH_PP_DIVISOR          0xc7210
+#define  PP_REFERENCE_DIVIDER_MASK      (0xffffff00)
+#define  PP_REFERENCE_DIVIDER_SHIFT     8
+#define  PANEL_POWER_CYCLE_DELAY_MASK   (0x1f)
+#define  PANEL_POWER_CYCLE_DELAY_SHIFT  0
 #define PCH_DP_B                0xe4100
 #define PCH_DPB_AUX_CH_CTL      0xe4110
diff --git a/drivers/gpu/drm/i915/intel_bios.c b/drivers/gpu/drm/i915/intel_bios.c
index 33378da63fdb..63880e2e5cfd 100644
--- a/drivers/gpu/drm/i915/intel_bios.c
+++ b/drivers/gpu/drm/i915/intel_bios.c
@@ -1,5 +1,5 @@
 /*
- * Copyright � 2006 Intel Corporation
+ * Copyright �� 2006 Intel Corporation
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
@@ -309,6 +309,13 @@ parse_general_features(struct drm_i915_private *dev_priv,
                dev_priv->lvds_use_ssc = general->enable_ssc;
                dev_priv->lvds_ssc_freq =
                        intel_bios_ssc_frequency(dev, general->ssc_freq);
+                dev_priv->display_clock_mode = general->display_clock_mode;
+                DRM_DEBUG_KMS("BDB_GENERAL_FEATURES int_tv_support %d int_crt_support %d lvds_use_ssc %d lvds_ssc_freq %d display_clock_mode %d\n",
+                              dev_priv->int_tv_support,
+                              dev_priv->int_crt_support,
+                              dev_priv->lvds_use_ssc,
+                              dev_priv->lvds_ssc_freq,
+                              dev_priv->display_clock_mode);
        }
 }
@@ -396,15 +403,13 @@ parse_sdvo_device_mapping(struct drm_i915_private *dev_priv,
                        p_mapping->dvo_wiring = p_child->dvo_wiring;
                        p_mapping->ddc_pin = p_child->ddc_pin;
                        p_mapping->i2c_pin = p_child->i2c_pin;
-                        p_mapping->i2c_speed = p_child->i2c_speed;
                        p_mapping->initialized = 1;
-                        DRM_DEBUG_KMS("SDVO device: dvo=%x, addr=%x, wiring=%d, ddc_pin=%d, i2c_pin=%d, i2c_speed=%d\n",
+                        DRM_DEBUG_KMS("SDVO device: dvo=%x, addr=%x, wiring=%d, ddc_pin=%d, i2c_pin=%d\n",
                                      p_mapping->dvo_port,
                                      p_mapping->slave_addr,
                                      p_mapping->dvo_wiring,
                                      p_mapping->ddc_pin,
-                                      p_mapping->i2c_pin,
+                                      p_mapping->i2c_pin);
-                                      p_mapping->i2c_speed);
                } else {
                        DRM_DEBUG_KMS("Maybe one SDVO port is shared by "
                                         "two SDVO device.\n");
@@ -610,7 +615,7 @@ init_vbt_defaults(struct drm_i915_private *dev_priv)
        /* Default to using SSC */
        dev_priv->lvds_use_ssc = 1;
        dev_priv->lvds_ssc_freq = intel_bios_ssc_frequency(dev, 1);
-        DRM_DEBUG("Set default to SSC at %dMHz\n", dev_priv->lvds_ssc_freq);
+        DRM_DEBUG_KMS("Set default to SSC at %dMHz\n", dev_priv->lvds_ssc_freq);
        /* eDP data */
        dev_priv->edp.bpp = 18;
@@ -639,7 +644,7 @@ intel_parse_bios(struct drm_device *dev)
        if (dev_priv->opregion.vbt) {
                struct vbt_header *vbt = dev_priv->opregion.vbt;
                if (memcmp(vbt->signature, "$VBT", 4) == 0) {
-                        DRM_DEBUG_DRIVER("Using VBT from OpRegion: %20s\n",
+                        DRM_DEBUG_KMS("Using VBT from OpRegion: %20s\n",
                                         vbt->signature);
                        bdb = (struct bdb_header *)((char *)vbt + vbt->bdb_offset);
                } else
diff --git a/drivers/gpu/drm/i915/intel_bios.h b/drivers/gpu/drm/i915/intel_bios.h
index c2e38feb7899..8af3735e27c6 100644
--- a/drivers/gpu/drm/i915/intel_bios.h
+++ b/drivers/gpu/drm/i915/intel_bios.h
@@ -1,5 +1,5 @@
 /*
- * Copyright � 2006 Intel Corporation
+ * Copyright �� 2006 Intel Corporation
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
@@ -120,7 +120,9 @@ struct bdb_general_features {
        u8 ssc_freq:1;
        u8 enable_lfp_on_override:1;
        u8 disable_ssc_ddt:1;
-        u8 rsvd8:3; /* finish byte */
+        u8 rsvd7:1;
+        u8 display_clock_mode:1;
+        u8 rsvd8:1; /* finish byte */
        /* bits 3 */
        u8 disable_smooth_vision:1;
@@ -133,7 +135,10 @@ struct bdb_general_features {
        /* bits 5 */
        u8 int_crt_support:1;
        u8 int_tv_support:1;
-        u8 rsvd11:6; /* finish byte */
+        u8 int_efp_support:1;
+        u8 dp_ssc_enb:1;        /* PCH attached eDP supports SSC */
+        u8 dp_ssc_freq:1;       /* SSC freq for PCH attached eDP */
+        u8 rsvd11:3; /* finish byte */
 } __attribute__((packed));
 /* pre-915 */
@@ -197,8 +202,7 @@ struct bdb_general_features {
 struct child_device_config {
        u16 handle;
        u16 device_type;
-        u8  i2c_speed;
+        u8  device_id[10]; /* ascii string */
-        u8  rsvd[9];
        u16 addin_offset;
        u8  dvo_port; /* See Device_PORT_* above */
        u8  i2c_pin;
@@ -446,11 +450,11 @@ struct bdb_driver_features {
 #define EDP_VSWING_1_2V         3
 struct edp_power_seq {
-        u16 t3;
+        u16 t1_t3;
-        u16 t7;
+        u16 t8;
        u16 t9;
        u16 t10;
-        u16 t12;
+        u16 t11_t12;
 } __attribute__ ((packed));
 struct edp_link_params {
diff --git a/drivers/gpu/drm/i915/intel_crt.c b/drivers/gpu/drm/i915/intel_crt.c
index 451534cb44de..fee0ad02c6d0 100644
--- a/drivers/gpu/drm/i915/intel_crt.c
+++ b/drivers/gpu/drm/i915/intel_crt.c
@@ -152,17 +152,13 @@ static void intel_crt_mode_set(struct drm_encoder *encoder,
        if (adjusted_mode->flags & DRM_MODE_FLAG_PVSYNC)
                adpa |= ADPA_VSYNC_ACTIVE_HIGH;
-        if (intel_crtc->pipe == 0) {
+        /* For CPT allow 3 pipe config, for others just use A or B */
-                if (HAS_PCH_CPT(dev))
+        if (HAS_PCH_CPT(dev))
-                        adpa |= PORT_TRANS_A_SEL_CPT;
+                adpa |= PORT_TRANS_SEL_CPT(intel_crtc->pipe);
-                else
+        else if (intel_crtc->pipe == 0)
-                        adpa |= ADPA_PIPE_A_SELECT;
+                adpa |= ADPA_PIPE_A_SELECT;
-        } else {
+        else
-                if (HAS_PCH_CPT(dev))
+                adpa |= ADPA_PIPE_B_SELECT;
-                        adpa |= PORT_TRANS_B_SEL_CPT;
-                else
-                        adpa |= ADPA_PIPE_B_SELECT;
-        }
        if (!HAS_PCH_SPLIT(dev))
                I915_WRITE(BCLRPAT(intel_crtc->pipe), 0);
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 8230cf54cc8d..981b1f1c04d8 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -803,6 +803,19 @@ static void assert_pch_pll(struct drm_i915_private *dev_priv,
        u32 val;
        bool cur_state;
+        if (HAS_PCH_CPT(dev_priv->dev)) {
+                u32 pch_dpll;
+                pch_dpll = I915_READ(PCH_DPLL_SEL);
+                /* Make sure the selected PLL is enabled to the transcoder */
+                WARN(!((pch_dpll >> (4 * pipe)) & 8),
+                     "transcoder %d PLL not enabled\n", pipe);
+                /* Convert the transcoder pipe number to a pll pipe number */
+                pipe = (pch_dpll >> (4 * pipe)) & 1;
+        }
        reg = PCH_DPLL(pipe);
        val = I915_READ(reg);
        cur_state = !!(val & DPLL_VCO_ENABLE);
@@ -1172,6 +1185,9 @@ static void intel_enable_pch_pll(struct drm_i915_private *dev_priv,
        int reg;
        u32 val;
+        if (pipe > 1)
+                return;
        /* PCH only available on ILK+ */
        BUG_ON(dev_priv->info->gen < 5);
@@ -1192,6 +1208,9 @@ static void intel_disable_pch_pll(struct drm_i915_private *dev_priv,
        int reg;
        u32 val;
+        if (pipe > 1)
+                return;
        /* PCH only available on ILK+ */
        BUG_ON(dev_priv->info->gen < 5);
@@ -1257,7 +1276,7 @@ static void intel_disable_transcoder(struct drm_i915_private *dev_priv,
        I915_WRITE(reg, val);
        /* wait for PCH transcoder off, transcoder state */
        if (wait_for((I915_READ(reg) & TRANS_STATE_ENABLE) == 0, 50))
-                DRM_ERROR("failed to disable transcoder\n");
+                DRM_ERROR("failed to disable transcoder %d\n", pipe);
 }
 /**
@@ -2086,6 +2105,7 @@ static int ironlake_update_plane(struct drm_crtc *crtc,
        switch (plane) {
        case 0:
        case 1:
+        case 2:
                break;
        default:
                DRM_ERROR("Can't update plane %d in SAREA\n", plane);
@@ -2185,6 +2205,10 @@ intel_pipe_set_base(struct drm_crtc *crtc, int x, int y,
        case 0:
        case 1:
                break;
+        case 2:
+                if (IS_IVYBRIDGE(dev))
+                        break;
+                /* fall through otherwise */
        default:
                DRM_ERROR("no plane for crtc\n");
                return -EINVAL;
@@ -2601,6 +2625,7 @@ static void ivb_manual_fdi_link_train(struct drm_crtc *crtc)
        temp |= FDI_LINK_TRAIN_PATTERN_1_IVB;
        temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
        temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B;
+        temp |= FDI_COMPOSITE_SYNC;
        I915_WRITE(reg, temp | FDI_TX_ENABLE);
        reg = FDI_RX_CTL(pipe);
@@ -2608,6 +2633,7 @@ static void ivb_manual_fdi_link_train(struct drm_crtc *crtc)
        temp &= ~FDI_LINK_TRAIN_AUTO;
        temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
        temp |= FDI_LINK_TRAIN_PATTERN_1_CPT;
+        temp |= FDI_COMPOSITE_SYNC;
        I915_WRITE(reg, temp | FDI_RX_ENABLE);
        POSTING_READ(reg);
@@ -2867,7 +2893,7 @@ static void ironlake_pch_enable(struct drm_crtc *crtc)
        struct drm_i915_private *dev_priv = dev->dev_private;
        struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
        int pipe = intel_crtc->pipe;
-        u32 reg, temp;
+        u32 reg, temp, transc_sel;
        /* For PCH output, training FDI link */
        dev_priv->display.fdi_link_train(crtc);
@@ -2875,12 +2901,21 @@ static void ironlake_pch_enable(struct drm_crtc *crtc)
        intel_enable_pch_pll(dev_priv, pipe);
        if (HAS_PCH_CPT(dev)) {
+                transc_sel = intel_crtc->use_pll_a ? TRANSC_DPLLA_SEL :
+                        TRANSC_DPLLB_SEL;
                /* Be sure PCH DPLL SEL is set */
                temp = I915_READ(PCH_DPLL_SEL);
-                if (pipe == 0 && (temp & TRANSA_DPLL_ENABLE) == 0)
+                if (pipe == 0) {
+                        temp &= ~(TRANSA_DPLLB_SEL);
                        temp |= (TRANSA_DPLL_ENABLE | TRANSA_DPLLA_SEL);
-                else if (pipe == 1 && (temp & TRANSB_DPLL_ENABLE) == 0)
+                } else if (pipe == 1) {
+                        temp &= ~(TRANSB_DPLLB_SEL);
                        temp |= (TRANSB_DPLL_ENABLE | TRANSB_DPLLB_SEL);
+                } else if (pipe == 2) {
+                        temp &= ~(TRANSC_DPLLB_SEL);
+                        temp |= (TRANSC_DPLL_ENABLE | transc_sel);
+                }
                I915_WRITE(PCH_DPLL_SEL, temp);
        }
@@ -2936,6 +2971,24 @@ static void ironlake_pch_enable(struct drm_crtc *crtc)
        intel_enable_transcoder(dev_priv, pipe);
 }
+void intel_cpt_verify_modeset(struct drm_device *dev, int pipe)
+{
+        struct drm_i915_private *dev_priv = dev->dev_private;
+        int dslreg = PIPEDSL(pipe), tc2reg = TRANS_CHICKEN2(pipe);
+        u32 temp;
+        temp = I915_READ(dslreg);
+        udelay(500);
+        if (wait_for(I915_READ(dslreg) != temp, 5)) {
+                /* Without this, mode sets may fail silently on FDI */
+                I915_WRITE(tc2reg, TRANS_AUTOTRAIN_GEN_STALL_DIS);
+                udelay(250);
+                I915_WRITE(tc2reg, 0);
+                if (wait_for(I915_READ(dslreg) != temp, 5))
+                        DRM_ERROR("mode set failed: pipe %d stuck\n", pipe);
+        }
+}
 static void ironlake_crtc_enable(struct drm_crtc *crtc)
 {
        struct drm_device *dev = crtc->dev;
@@ -3046,13 +3099,13 @@ static void ironlake_crtc_disable(struct drm_crtc *crtc)
                temp = I915_READ(PCH_DPLL_SEL);
                switch (pipe) {
                case 0:
-                        temp &= ~(TRANSA_DPLL_ENABLE | TRANSA_DPLLA_SEL);
+                        temp &= ~(TRANSA_DPLL_ENABLE | TRANSA_DPLLB_SEL);
                        break;
                case 1:
                        temp &= ~(TRANSB_DPLL_ENABLE | TRANSB_DPLLB_SEL);
                        break;
                case 2:
-                        /* FIXME: manage transcoder PLLs? */
+                        /* C shares PLL A or B */
                        temp &= ~(TRANSC_DPLL_ENABLE | TRANSC_DPLLB_SEL);
                        break;
                default:
@@ -3062,7 +3115,8 @@ static void ironlake_crtc_disable(struct drm_crtc *crtc)
        }
        /* disable PCH DPLL */
-        intel_disable_pch_pll(dev_priv, pipe);
+        if (!intel_crtc->no_pll)
+                intel_disable_pch_pll(dev_priv, pipe);
        /* Switch from PCDclk to Rawclk */
        reg = FDI_RX_CTL(pipe);
@@ -3304,8 +3358,15 @@ void intel_encoder_prepare(struct drm_encoder *encoder)
 void intel_encoder_commit(struct drm_encoder *encoder)
 {
        struct drm_encoder_helper_funcs *encoder_funcs = encoder->helper_private;
+        struct drm_device *dev = encoder->dev;
+        struct intel_encoder *intel_encoder = to_intel_encoder(encoder);
+        struct intel_crtc *intel_crtc = to_intel_crtc(intel_encoder->base.crtc);
        /* lvds has its own version of commit see intel_lvds_commit */
        encoder_funcs->dpms(encoder, DRM_MODE_DPMS_ON);
+        if (HAS_PCH_CPT(dev))
+                intel_cpt_verify_modeset(dev, intel_crtc->pipe);
 }
 void intel_encoder_destroy(struct drm_encoder *encoder)
@@ -4479,6 +4540,20 @@ static void sandybridge_update_wm(struct drm_device *dev)
                enabled |= 2;
        }
+        /* IVB has 3 pipes */
+        if (IS_IVYBRIDGE(dev) &&
+            g4x_compute_wm0(dev, 2,
+                            &sandybridge_display_wm_info, latency,
+                            &sandybridge_cursor_wm_info, latency,
+                            &plane_wm, &cursor_wm)) {
+                I915_WRITE(WM0_PIPEC_IVB,
+                           (plane_wm << WM0_PIPE_PLANE_SHIFT) | cursor_wm);
+                DRM_DEBUG_KMS("FIFO watermarks For pipe C -"
+                              " plane %d, cursor: %d\n",
+                              plane_wm, cursor_wm);
+                enabled |= 3;
+        }
        /*
         * Calculate and update the self-refresh watermark only when one
         * display plane is used.
@@ -4585,7 +4660,9 @@ static void intel_update_watermarks(struct drm_device *dev)
 static inline bool intel_panel_use_ssc(struct drm_i915_private *dev_priv)
 {
-        return dev_priv->lvds_use_ssc && i915_panel_use_ssc
+        if (i915_panel_use_ssc >= 0)
+                return i915_panel_use_ssc != 0;
+        return dev_priv->lvds_use_ssc
                && !(dev_priv->quirks & QUIRK_LVDS_SSC_DISABLE);
 }
@@ -5108,36 +5185,52 @@ static int i9xx_crtc_mode_set(struct drm_crtc *crtc,
        return ret;
 }
-static void ironlake_update_pch_refclk(struct drm_device *dev)
+/*
+ * Initialize reference clocks when the driver loads
+ */
+void ironlake_init_pch_refclk(struct drm_device *dev)
 {
        struct drm_i915_private *dev_priv = dev->dev_private;
        struct drm_mode_config *mode_config = &dev->mode_config;
-        struct drm_crtc *crtc;
        struct intel_encoder *encoder;
-        struct intel_encoder *has_edp_encoder = NULL;
        u32 temp;
        bool has_lvds = false;
+        bool has_cpu_edp = false;
+        bool has_pch_edp = false;
+        bool has_panel = false;
+        bool has_ck505 = false;
+        bool can_ssc = false;
        /* We need to take the global config into account */
-        list_for_each_entry(crtc, &mode_config->crtc_list, head) {
+        list_for_each_entry(encoder, &mode_config->encoder_list,
-                if (!crtc->enabled)
+                            base.head) {
-                        continue;
+                switch (encoder->type) {
+                case INTEL_OUTPUT_LVDS:
-                list_for_each_entry(encoder, &mode_config->encoder_list,
+                        has_panel = true;
-                                    base.head) {
+                        has_lvds = true;
-                        if (encoder->base.crtc != crtc)
+                        break;
-                                continue;
+                case INTEL_OUTPUT_EDP:
+                        has_panel = true;
-                        switch (encoder->type) {
+                        if (intel_encoder_is_pch_edp(&encoder->base))
-                        case INTEL_OUTPUT_LVDS:
+                                has_pch_edp = true;
-                                has_lvds = true;
+                        else
-                        case INTEL_OUTPUT_EDP:
+                                has_cpu_edp = true;
-                                has_edp_encoder = encoder;
+                        break;
-                                break;
-                        }
                }
        }
+        if (HAS_PCH_IBX(dev)) {
+                has_ck505 = dev_priv->display_clock_mode;
+                can_ssc = has_ck505;
+        } else {
+                has_ck505 = false;
+                can_ssc = true;
+        }
+        DRM_DEBUG_KMS("has_panel %d has_lvds %d has_pch_edp %d has_cpu_edp %d has_ck505 %d\n",
+                      has_panel, has_lvds, has_pch_edp, has_cpu_edp,
+                      has_ck505);
        /* 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
@@ -5146,41 +5239,100 @@ static void ironlake_update_pch_refclk(struct drm_device *dev)
        temp = I915_READ(PCH_DREF_CONTROL);
        /* Always enable nonspread source */
        temp &= ~DREF_NONSPREAD_SOURCE_MASK;
-        temp |= DREF_NONSPREAD_SOURCE_ENABLE;
-        temp &= ~DREF_SSC_SOURCE_MASK;
-        temp |= DREF_SSC_SOURCE_ENABLE;
-        I915_WRITE(PCH_DREF_CONTROL, temp);
-        POSTING_READ(PCH_DREF_CONTROL);
+        if (has_ck505)
-        udelay(200);
+                temp |= DREF_NONSPREAD_CK505_ENABLE;
+        else
+                temp |= DREF_NONSPREAD_SOURCE_ENABLE;
-        if (has_edp_encoder) {
+        if (has_panel) {
-                if (intel_panel_use_ssc(dev_priv)) {
+                temp &= ~DREF_SSC_SOURCE_MASK;
-                        temp |= DREF_SSC1_ENABLE;
+                temp |= DREF_SSC_SOURCE_ENABLE;
-                        I915_WRITE(PCH_DREF_CONTROL, temp);
-                        POSTING_READ(PCH_DREF_CONTROL);
+                /* SSC must be turned on before enabling the CPU output  */
-                        udelay(200);
+                if (intel_panel_use_ssc(dev_priv) && can_ssc) {
+                        DRM_DEBUG_KMS("Using SSC on panel\n");
+                        temp |= DREF_SSC1_ENABLE;
                }
+                /* Get SSC going before enabling the outputs */
+                I915_WRITE(PCH_DREF_CONTROL, temp);
+                POSTING_READ(PCH_DREF_CONTROL);
+                udelay(200);
                temp &= ~DREF_CPU_SOURCE_OUTPUT_MASK;
                /* Enable CPU source on CPU attached eDP */
-                if (!intel_encoder_is_pch_edp(&has_edp_encoder->base)) {
+                if (has_cpu_edp) {
-                        if (intel_panel_use_ssc(dev_priv))
+                        if (intel_panel_use_ssc(dev_priv) && can_ssc) {
+                                DRM_DEBUG_KMS("Using SSC on eDP\n");
                                temp |= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD;
+                        }
                        else
                                temp |= DREF_CPU_SOURCE_OUTPUT_NONSPREAD;
-                } else {
+                } else
-                        /* Enable SSC on PCH eDP if needed */
+                        temp |= DREF_CPU_SOURCE_OUTPUT_DISABLE;
-                        if (intel_panel_use_ssc(dev_priv)) {
-                                DRM_ERROR("enabling SSC on PCH\n");
-                                temp |= DREF_SUPERSPREAD_SOURCE_ENABLE;
-                        }
-                }
                I915_WRITE(PCH_DREF_CONTROL, temp);
                POSTING_READ(PCH_DREF_CONTROL);
                udelay(200);
+        } else {
+                DRM_DEBUG_KMS("Disabling SSC entirely\n");
+                temp &= ~DREF_CPU_SOURCE_OUTPUT_MASK;
+                /* Turn off CPU output */
+                temp |= DREF_CPU_SOURCE_OUTPUT_DISABLE;
+                I915_WRITE(PCH_DREF_CONTROL, temp);
+                POSTING_READ(PCH_DREF_CONTROL);
+                udelay(200);
+                /* Turn off the SSC source */
+                temp &= ~DREF_SSC_SOURCE_MASK;
+                temp |= DREF_SSC_SOURCE_DISABLE;
+                /* Turn off SSC1 */
+                temp &= ~ DREF_SSC1_ENABLE;
+                I915_WRITE(PCH_DREF_CONTROL, temp);
+                POSTING_READ(PCH_DREF_CONTROL);
+                udelay(200);
+        }
+}
+static int ironlake_get_refclk(struct drm_crtc *crtc)
+{
+        struct drm_device *dev = crtc->dev;
+        struct drm_i915_private *dev_priv = dev->dev_private;
+        struct intel_encoder *encoder;
+        struct drm_mode_config *mode_config = &dev->mode_config;
+        struct intel_encoder *edp_encoder = NULL;
+        int num_connectors = 0;
+        bool is_lvds = false;
+        list_for_each_entry(encoder, &mode_config->encoder_list, base.head) {
+                if (encoder->base.crtc != crtc)
+                        continue;
+                switch (encoder->type) {
+                case INTEL_OUTPUT_LVDS:
+                        is_lvds = true;
+                        break;
+                case INTEL_OUTPUT_EDP:
+                        edp_encoder = encoder;
+                        break;
+                }
+                num_connectors++;
        }
+        if (is_lvds && intel_panel_use_ssc(dev_priv) && num_connectors < 2) {
+                DRM_DEBUG_KMS("using SSC reference clock of %d MHz\n",
+                              dev_priv->lvds_ssc_freq);
+                return dev_priv->lvds_ssc_freq * 1000;
+        }
+        return 120000;
 }
 static int ironlake_crtc_mode_set(struct drm_crtc *crtc,
@@ -5242,16 +5394,7 @@ static int ironlake_crtc_mode_set(struct drm_crtc *crtc,
                num_connectors++;
        }
-        if (is_lvds && intel_panel_use_ssc(dev_priv) && num_connectors < 2) {
+        refclk = ironlake_get_refclk(crtc);
-                refclk = dev_priv->lvds_ssc_freq * 1000;
-                DRM_DEBUG_KMS("using SSC reference clock of %d MHz\n",
-                              refclk / 1000);
-        } else {
-                refclk = 96000;
-                if (!has_edp_encoder ||
-                    intel_encoder_is_pch_edp(&has_edp_encoder->base))
-                        refclk = 120000; /* 120Mhz refclk */
-        }
        /*
         * Returns a set of divisors for the desired target clock with the given
@@ -5378,8 +5521,6 @@ static int ironlake_crtc_mode_set(struct drm_crtc *crtc,
        ironlake_compute_m_n(intel_crtc->bpp, lane, target_clock, link_bw,
                             &m_n);
-        ironlake_update_pch_refclk(dev);
        fp = clock.n << 16 | clock.m1 << 8 | clock.m2;
        if (has_reduced_clock)
                fp2 = reduced_clock.n << 16 | reduced_clock.m1 << 8 |
@@ -5451,39 +5592,32 @@ static int ironlake_crtc_mode_set(struct drm_crtc *crtc,
        /* Set up the display plane register */
        dspcntr = DISPPLANE_GAMMA_ENABLE;
-        DRM_DEBUG_KMS("Mode for pipe %c:\n", pipe == 0 ? 'A' : 'B');
+        DRM_DEBUG_KMS("Mode for pipe %d:\n", pipe);
        drm_mode_debug_printmodeline(mode);
        /* PCH eDP needs FDI, but CPU eDP does not */
-        if (!has_edp_encoder || intel_encoder_is_pch_edp(&has_edp_encoder->base)) {
+        if (!intel_crtc->no_pll) {
-                I915_WRITE(PCH_FP0(pipe), fp);
+                if (!has_edp_encoder ||
-                I915_WRITE(PCH_DPLL(pipe), dpll & ~DPLL_VCO_ENABLE);
+                    intel_encoder_is_pch_edp(&has_edp_encoder->base)) {
+                        I915_WRITE(PCH_FP0(pipe), fp);
-                POSTING_READ(PCH_DPLL(pipe));
+                        I915_WRITE(PCH_DPLL(pipe), dpll & ~DPLL_VCO_ENABLE);
-                udelay(150);
-        }
-        /* enable transcoder DPLL */
+                        POSTING_READ(PCH_DPLL(pipe));
-        if (HAS_PCH_CPT(dev)) {
+                        udelay(150);
-                temp = I915_READ(PCH_DPLL_SEL);
+                }
-                switch (pipe) {
+        } else {
-                case 0:
+                if (dpll == (I915_READ(PCH_DPLL(0)) & 0x7fffffff) &&
-                        temp |= TRANSA_DPLL_ENABLE | TRANSA_DPLLA_SEL;
+                    fp == I915_READ(PCH_FP0(0))) {
-                        break;
+                        intel_crtc->use_pll_a = true;
-                case 1:
+                        DRM_DEBUG_KMS("using pipe a dpll\n");
-                        temp |= TRANSB_DPLL_ENABLE | TRANSB_DPLLB_SEL;
+                } else if (dpll == (I915_READ(PCH_DPLL(1)) & 0x7fffffff) &&
-                        break;
+                           fp == I915_READ(PCH_FP0(1))) {
-                case 2:
+                        intel_crtc->use_pll_a = false;
-                        /* FIXME: manage transcoder PLLs? */
+                        DRM_DEBUG_KMS("using pipe b dpll\n");
-                        temp |= TRANSC_DPLL_ENABLE | TRANSC_DPLLB_SEL;
+                } else {
-                        break;
+                        DRM_DEBUG_KMS("no matching PLL configuration for pipe 2\n");
-                default:
+                        return -EINVAL;
-                        BUG();
                }
-                I915_WRITE(PCH_DPLL_SEL, temp);
-                POSTING_READ(PCH_DPLL_SEL);
-                udelay(150);
        }
        /* The LVDS pin pair needs to be on before the DPLLs are enabled.
@@ -5493,17 +5627,13 @@ static int ironlake_crtc_mode_set(struct drm_crtc *crtc,
        if (is_lvds) {
                temp = I915_READ(PCH_LVDS);
                temp |= LVDS_PORT_EN | LVDS_A0A2_CLKA_POWER_UP;
-                if (pipe == 1) {
+                if (HAS_PCH_CPT(dev))
-                        if (HAS_PCH_CPT(dev))
+                        temp |= PORT_TRANS_SEL_CPT(pipe);
-                                temp |= PORT_TRANS_B_SEL_CPT;
+                else if (pipe == 1)
-                        else
+                        temp |= LVDS_PIPEB_SELECT;
-                                temp |= LVDS_PIPEB_SELECT;
+                else
-                } else {
+                        temp &= ~LVDS_PIPEB_SELECT;
-                        if (HAS_PCH_CPT(dev))
-                                temp &= ~PORT_TRANS_SEL_MASK;
-                        else
-                                temp &= ~LVDS_PIPEB_SELECT;
-                }
                /* set the corresponsding LVDS_BORDER bit */
                temp |= dev_priv->lvds_border_bits;
                /* Set the B0-B3 data pairs corresponding to whether we're going to
@@ -5553,8 +5683,9 @@ static int ironlake_crtc_mode_set(struct drm_crtc *crtc,
                I915_WRITE(TRANSDPLINK_N1(pipe), 0);
        }
-        if (!has_edp_encoder ||
+        if (!intel_crtc->no_pll &&
-            intel_encoder_is_pch_edp(&has_edp_encoder->base)) {
+            (!has_edp_encoder ||
+             intel_encoder_is_pch_edp(&has_edp_encoder->base))) {
                I915_WRITE(PCH_DPLL(pipe), dpll);
                /* Wait for the clocks to stabilize. */
@@ -5570,18 +5701,20 @@ static int ironlake_crtc_mode_set(struct drm_crtc *crtc,
        }
        intel_crtc->lowfreq_avail = false;
-        if (is_lvds && has_reduced_clock && i915_powersave) {
+        if (!intel_crtc->no_pll) {
-                I915_WRITE(PCH_FP1(pipe), fp2);
+                if (is_lvds && has_reduced_clock && i915_powersave) {
-                intel_crtc->lowfreq_avail = true;
+                        I915_WRITE(PCH_FP1(pipe), fp2);
-                if (HAS_PIPE_CXSR(dev)) {
+                        intel_crtc->lowfreq_avail = true;
-                        DRM_DEBUG_KMS("enabling CxSR downclocking\n");
+                        if (HAS_PIPE_CXSR(dev)) {
-                        pipeconf |= PIPECONF_CXSR_DOWNCLOCK;
+                                DRM_DEBUG_KMS("enabling CxSR downclocking\n");
-                }
+                                pipeconf |= PIPECONF_CXSR_DOWNCLOCK;
-        } else {
+                        }
-                I915_WRITE(PCH_FP1(pipe), fp);
+                } else {
-                if (HAS_PIPE_CXSR(dev)) {
+                        I915_WRITE(PCH_FP1(pipe), fp);
-                        DRM_DEBUG_KMS("disabling CxSR downclocking\n");
+                        if (HAS_PIPE_CXSR(dev)) {
-                        pipeconf &= ~PIPECONF_CXSR_DOWNCLOCK;
+                                DRM_DEBUG_KMS("disabling CxSR downclocking\n");
+                                pipeconf &= ~PIPECONF_CXSR_DOWNCLOCK;
+                        }
                }
        }
@@ -5884,6 +6017,31 @@ static void i9xx_update_cursor(struct drm_crtc *crtc, u32 base)
        I915_WRITE(CURBASE(pipe), base);
 }
+static void ivb_update_cursor(struct drm_crtc *crtc, u32 base)
+{
+        struct drm_device *dev = crtc->dev;
+        struct drm_i915_private *dev_priv = dev->dev_private;
+        struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+        int pipe = intel_crtc->pipe;
+        bool visible = base != 0;
+        if (intel_crtc->cursor_visible != visible) {
+                uint32_t cntl = I915_READ(CURCNTR_IVB(pipe));
+                if (base) {
+                        cntl &= ~CURSOR_MODE;
+                        cntl |= CURSOR_MODE_64_ARGB_AX | MCURSOR_GAMMA_ENABLE;
+                } else {
+                        cntl &= ~(CURSOR_MODE | MCURSOR_GAMMA_ENABLE);
+                        cntl |= CURSOR_MODE_DISABLE;
+                }
+                I915_WRITE(CURCNTR_IVB(pipe), cntl);
+                intel_crtc->cursor_visible = visible;
+        }
+        /* and commit changes on next vblank */
+        I915_WRITE(CURBASE_IVB(pipe), base);
+}
 /* If no-part of the cursor is visible on the framebuffer, then the GPU may hang... */
 static void intel_crtc_update_cursor(struct drm_crtc *crtc,
                                     bool on)
@@ -5931,11 +6089,16 @@ static void intel_crtc_update_cursor(struct drm_crtc *crtc,
        if (!visible && !intel_crtc->cursor_visible)
                return;
-        I915_WRITE(CURPOS(pipe), pos);
+        if (IS_IVYBRIDGE(dev)) {
-        if (IS_845G(dev) || IS_I865G(dev))
+                I915_WRITE(CURPOS_IVB(pipe), pos);
-                i845_update_cursor(crtc, base);
+                ivb_update_cursor(crtc, base);
-        else
+        } else {
-                i9xx_update_cursor(crtc, base);
+                I915_WRITE(CURPOS(pipe), pos);
+                if (IS_845G(dev) || IS_I865G(dev))
+                        i845_update_cursor(crtc, base);
+                else
+                        i9xx_update_cursor(crtc, base);
+        }
        if (visible)
                intel_mark_busy(dev, to_intel_framebuffer(crtc->fb)->obj);
@@ -7197,6 +7360,8 @@ static void intel_crtc_init(struct drm_device *dev, int pipe)
        intel_crtc->bpp = 24; /* default for pre-Ironlake */
        if (HAS_PCH_SPLIT(dev)) {
+                if (pipe == 2 && IS_IVYBRIDGE(dev))
+                        intel_crtc->no_pll = true;
                intel_helper_funcs.prepare = ironlake_crtc_prepare;
                intel_helper_funcs.commit = ironlake_crtc_commit;
        } else {
@@ -7376,6 +7541,9 @@ static void intel_setup_outputs(struct drm_device *dev)
        /* disable all the possible outputs/crtcs before entering KMS mode */
        drm_helper_disable_unused_functions(dev);
+        if (HAS_PCH_SPLIT(dev))
+                ironlake_init_pch_refclk(dev);
 }
 static void intel_user_framebuffer_destroy(struct drm_framebuffer *fb)
@@ -7620,6 +7788,10 @@ void gen6_disable_rps(struct drm_device *dev)
        I915_WRITE(GEN6_RPNSWREQ, 1 << 31);
        I915_WRITE(GEN6_PMINTRMSK, 0xffffffff);
        I915_WRITE(GEN6_PMIER, 0);
+        /* Complete PM interrupt masking here doesn't race with the rps work
+         * item again unmasking PM interrupts because that is using a different
+         * register (PMIMR) to mask PM interrupts. The only risk is in leaving
+         * stale bits in PMIIR and PMIMR which gen6_enable_rps will clean up. */
        spin_lock_irq(&dev_priv->rps_lock);
        dev_priv->pm_iir = 0;
@@ -8617,6 +8789,7 @@ void intel_modeset_cleanup(struct drm_device *dev)
         * enqueue unpin/hotplug work. */
        drm_irq_uninstall(dev);
        cancel_work_sync(&dev_priv->hotplug_work);
+        cancel_work_sync(&dev_priv->rps_work);
        /* flush any delayed tasks or pending work */
        flush_scheduled_work();
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 6cbde9ff1ec6..fc1a0832af4f 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -36,7 +36,7 @@
 #include "i915_drv.h"
 #include "drm_dp_helper.h"
+#define DP_RECEIVER_CAP_SIZE    0xf
 #define DP_LINK_STATUS_SIZE     6
 #define DP_LINK_CHECK_TIMEOUT   (10 * 1000)
@@ -53,12 +53,21 @@ struct intel_dp {
        int dpms_mode;
        uint8_t link_bw;
        uint8_t lane_count;
-        uint8_t dpcd[8];
+        uint8_t dpcd[DP_RECEIVER_CAP_SIZE];
        struct i2c_adapter adapter;
        struct i2c_algo_dp_aux_data algo;
        bool is_pch_edp;
        uint8_t train_set[4];
        uint8_t link_status[DP_LINK_STATUS_SIZE];
+        int panel_power_up_delay;
+        int panel_power_down_delay;
+        int panel_power_cycle_delay;
+        int backlight_on_delay;
+        int backlight_off_delay;
+        struct drm_display_mode *panel_fixed_mode;  /* for eDP */
+        struct delayed_work panel_vdd_work;
+        bool want_panel_vdd;
+        unsigned long panel_off_jiffies;
 };
 /**
@@ -86,6 +95,17 @@ static bool is_pch_edp(struct intel_dp *intel_dp)
        return intel_dp->is_pch_edp;
 }
+/**
+ * is_cpu_edp - is the port on the CPU and attached to an eDP panel?
+ * @intel_dp: DP struct
+ *
+ * Returns true if the given DP struct corresponds to a CPU eDP port.
+ */
+static bool is_cpu_edp(struct intel_dp *intel_dp)
+{
+        return is_edp(intel_dp) && !is_pch_edp(intel_dp);
+}
 static struct intel_dp *enc_to_intel_dp(struct drm_encoder *encoder)
 {
        return container_of(encoder, struct intel_dp, base.base);
@@ -175,9 +195,25 @@ intel_dp_link_clock(uint8_t link_bw)
                return 162000;
 }
-/* I think this is a fiction */
+/*
+ * The units on the numbers in the next two are... bizarre.  Examples will
+ * make it clearer; this one parallels an example in the eDP spec.
+ *
+ * intel_dp_max_data_rate for one lane of 2.7GHz evaluates as:
+ *
+ *     270000 * 1 * 8 / 10 == 216000
+ *
+ * The actual data capacity of that configuration is 2.16Gbit/s, so the
+ * units are decakilobits.  ->clock in a drm_display_mode is in kilohertz -
+ * or equivalently, kilopixels per second - so for 1680x1050R it'd be
+ * 119000.  At 18bpp that's 2142000 kilobits per second.
+ *
+ * Thus the strange-looking division by 10 in intel_dp_link_required, to
+ * get the result in decakilobits instead of kilobits.
+ */
 static int
-intel_dp_link_required(struct drm_device *dev, struct intel_dp *intel_dp, int pixel_clock)
+intel_dp_link_required(struct intel_dp *intel_dp, int pixel_clock)
 {
        struct drm_crtc *crtc = intel_dp->base.base.crtc;
        struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
@@ -186,7 +222,7 @@ intel_dp_link_required(struct drm_device *dev, struct intel_dp *intel_dp, int pi
        if (intel_crtc)
                bpp = intel_crtc->bpp;
-        return (pixel_clock * bpp + 7) / 8;
+        return (pixel_clock * bpp + 9) / 10;
 }
 static int
@@ -200,24 +236,19 @@ intel_dp_mode_valid(struct drm_connector *connector,
                    struct drm_display_mode *mode)
 {
        struct intel_dp *intel_dp = intel_attached_dp(connector);
-        struct drm_device *dev = connector->dev;
-        struct drm_i915_private *dev_priv = dev->dev_private;
        int max_link_clock = intel_dp_link_clock(intel_dp_max_link_bw(intel_dp));
        int max_lanes = intel_dp_max_lane_count(intel_dp);
-        if (is_edp(intel_dp) && dev_priv->panel_fixed_mode) {
+        if (is_edp(intel_dp) && intel_dp->panel_fixed_mode) {
-                if (mode->hdisplay > dev_priv->panel_fixed_mode->hdisplay)
+                if (mode->hdisplay > intel_dp->panel_fixed_mode->hdisplay)
                        return MODE_PANEL;
-                if (mode->vdisplay > dev_priv->panel_fixed_mode->vdisplay)
+                if (mode->vdisplay > intel_dp->panel_fixed_mode->vdisplay)
                        return MODE_PANEL;
        }
-        /* only refuse the mode on non eDP since we have seen some weird eDP panels
+        if (intel_dp_link_required(intel_dp, mode->clock)
-           which are outside spec tolerances but somehow work by magic */
+            > intel_dp_max_data_rate(max_link_clock, max_lanes))
-        if (!is_edp(intel_dp) &&
-            (intel_dp_link_required(connector->dev, intel_dp, mode->clock)
-             > intel_dp_max_data_rate(max_link_clock, max_lanes)))
                return MODE_CLOCK_HIGH;
        if (mode->clock < 10000)
@@ -279,6 +310,38 @@ intel_hrawclk(struct drm_device *dev)
        }
 }
+static bool ironlake_edp_have_panel_power(struct intel_dp *intel_dp)
+{
+        struct drm_device *dev = intel_dp->base.base.dev;
+        struct drm_i915_private *dev_priv = dev->dev_private;
+        return (I915_READ(PCH_PP_STATUS) & PP_ON) != 0;
+}
+static bool ironlake_edp_have_panel_vdd(struct intel_dp *intel_dp)
+{
+        struct drm_device *dev = intel_dp->base.base.dev;
+        struct drm_i915_private *dev_priv = dev->dev_private;
+        return (I915_READ(PCH_PP_CONTROL) & EDP_FORCE_VDD) != 0;
+}
+static void
+intel_dp_check_edp(struct intel_dp *intel_dp)
+{
+        struct drm_device *dev = intel_dp->base.base.dev;
+        struct drm_i915_private *dev_priv = dev->dev_private;
+        if (!is_edp(intel_dp))
+                return;
+        if (!ironlake_edp_have_panel_power(intel_dp) && !ironlake_edp_have_panel_vdd(intel_dp)) {
+                WARN(1, "eDP powered off while attempting aux channel communication.\n");
+                DRM_DEBUG_KMS("Status 0x%08x Control 0x%08x\n",
+                              I915_READ(PCH_PP_STATUS),
+                              I915_READ(PCH_PP_CONTROL));
+        }
+}
 static int
 intel_dp_aux_ch(struct intel_dp *intel_dp,
                uint8_t *send, int send_bytes,
@@ -295,6 +358,7 @@ intel_dp_aux_ch(struct intel_dp *intel_dp,
        uint32_t aux_clock_divider;
        int try, precharge;
+        intel_dp_check_edp(intel_dp);
        /* The clock divider is based off the hrawclk,
         * and would like to run at 2MHz. So, take the
         * hrawclk value and divide by 2 and use that
@@ -302,7 +366,7 @@ intel_dp_aux_ch(struct intel_dp *intel_dp,
         * Note that PCH attached eDP panels should use a 125MHz input
         * clock divider.
         */
-        if (is_edp(intel_dp) && !is_pch_edp(intel_dp)) {
+        if (is_cpu_edp(intel_dp)) {
                if (IS_GEN6(dev))
                        aux_clock_divider = 200; /* SNB eDP input clock at 400Mhz */
                else
@@ -408,6 +472,7 @@ intel_dp_aux_native_write(struct intel_dp *intel_dp,
        int msg_bytes;
        uint8_t ack;
+        intel_dp_check_edp(intel_dp);
        if (send_bytes > 16)
                return -1;
        msg[0] = AUX_NATIVE_WRITE << 4;
@@ -450,6 +515,7 @@ intel_dp_aux_native_read(struct intel_dp *intel_dp,
        uint8_t ack;
        int ret;
+        intel_dp_check_edp(intel_dp);
        msg[0] = AUX_NATIVE_READ << 4;
        msg[1] = address >> 8;
        msg[2] = address & 0xff;
@@ -493,6 +559,7 @@ intel_dp_i2c_aux_ch(struct i2c_adapter *adapter, int mode,
        int reply_bytes;
        int ret;
+        intel_dp_check_edp(intel_dp);
        /* Set up the command byte */
        if (mode & MODE_I2C_READ)
                msg[0] = AUX_I2C_READ << 4;
@@ -573,10 +640,15 @@ intel_dp_i2c_aux_ch(struct i2c_adapter *adapter, int mode,
        return -EREMOTEIO;
 }
+static void ironlake_edp_panel_vdd_on(struct intel_dp *intel_dp);
+static void ironlake_edp_panel_vdd_off(struct intel_dp *intel_dp, bool sync);
 static int
 intel_dp_i2c_init(struct intel_dp *intel_dp,
                  struct intel_connector *intel_connector, const char *name)
 {
+        int     ret;
        DRM_DEBUG_KMS("i2c_init %s\n", name);
        intel_dp->algo.running = false;
        intel_dp->algo.address = 0;
@@ -590,7 +662,10 @@ intel_dp_i2c_init(struct intel_dp *intel_dp,
        intel_dp->adapter.algo_data = &intel_dp->algo;
        intel_dp->adapter.dev.parent = &intel_connector->base.kdev;
-        return i2c_dp_aux_add_bus(&intel_dp->adapter);
+        ironlake_edp_panel_vdd_on(intel_dp);
+        ret = i2c_dp_aux_add_bus(&intel_dp->adapter);
+        ironlake_edp_panel_vdd_off(intel_dp, false);
+        return ret;
 }
 static bool
@@ -598,29 +673,28 @@ intel_dp_mode_fixup(struct drm_encoder *encoder, struct drm_display_mode *mode,
                    struct drm_display_mode *adjusted_mode)
 {
        struct drm_device *dev = encoder->dev;
-        struct drm_i915_private *dev_priv = dev->dev_private;
        struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
        int lane_count, clock;
        int max_lane_count = intel_dp_max_lane_count(intel_dp);
        int max_clock = intel_dp_max_link_bw(intel_dp) == DP_LINK_BW_2_7 ? 1 : 0;
        static int bws[2] = { DP_LINK_BW_1_62, DP_LINK_BW_2_7 };
-        if (is_edp(intel_dp) && dev_priv->panel_fixed_mode) {
+        if (is_edp(intel_dp) && intel_dp->panel_fixed_mode) {
-                intel_fixed_panel_mode(dev_priv->panel_fixed_mode, adjusted_mode);
+                intel_fixed_panel_mode(intel_dp->panel_fixed_mode, adjusted_mode);
                intel_pch_panel_fitting(dev, DRM_MODE_SCALE_FULLSCREEN,
                                        mode, adjusted_mode);
                /*
                 * the mode->clock is used to calculate the Data&Link M/N
                 * of the pipe. For the eDP the fixed clock should be used.
                 */
-                mode->clock = dev_priv->panel_fixed_mode->clock;
+                mode->clock = intel_dp->panel_fixed_mode->clock;
        }
        for (lane_count = 1; lane_count <= max_lane_count; lane_count <<= 1) {
                for (clock = 0; clock <= max_clock; clock++) {
                        int link_avail = intel_dp_max_data_rate(intel_dp_link_clock(bws[clock]), lane_count);
-                        if (intel_dp_link_required(encoder->dev, intel_dp, mode->clock)
+                        if (intel_dp_link_required(intel_dp, mode->clock)
                                        <= link_avail) {
                                intel_dp->link_bw = bws[clock];
                                intel_dp->lane_count = lane_count;
@@ -634,19 +708,6 @@ intel_dp_mode_fixup(struct drm_encoder *encoder, struct drm_display_mode *mode,
                }
        }
-        if (is_edp(intel_dp)) {
-                /* okay we failed just pick the highest */
-                intel_dp->lane_count = max_lane_count;
-                intel_dp->link_bw = bws[max_clock];
-                adjusted_mode->clock = intel_dp_link_clock(intel_dp->link_bw);
-                DRM_DEBUG_KMS("Force picking display port link bw %02x lane "
-                              "count %d clock %d\n",
-                              intel_dp->link_bw, intel_dp->lane_count,
-                              adjusted_mode->clock);
-                return true;
-        }
        return false;
 }
@@ -740,6 +801,9 @@ intel_dp_set_m_n(struct drm_crtc *crtc, struct drm_display_mode *mode,
        }
 }
+static void ironlake_edp_pll_on(struct drm_encoder *encoder);
+static void ironlake_edp_pll_off(struct drm_encoder *encoder);
 static void
 intel_dp_mode_set(struct drm_encoder *encoder, struct drm_display_mode *mode,
                  struct drm_display_mode *adjusted_mode)
@@ -749,6 +813,14 @@ intel_dp_mode_set(struct drm_encoder *encoder, struct drm_display_mode *mode,
        struct drm_crtc *crtc = intel_dp->base.base.crtc;
        struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+        /* Turn on the eDP PLL if needed */
+        if (is_edp(intel_dp)) {
+                if (!is_pch_edp(intel_dp))
+                        ironlake_edp_pll_on(encoder);
+                else
+                        ironlake_edp_pll_off(encoder);
+        }
        intel_dp->DP = DP_VOLTAGE_0_4 | DP_PRE_EMPHASIS_0;
        intel_dp->DP |= intel_dp->color_range;
@@ -757,7 +829,7 @@ intel_dp_mode_set(struct drm_encoder *encoder, struct drm_display_mode *mode,
        if (adjusted_mode->flags & DRM_MODE_FLAG_PVSYNC)
                intel_dp->DP |= DP_SYNC_VS_HIGH;
-        if (HAS_PCH_CPT(dev) && !is_edp(intel_dp))
+        if (HAS_PCH_CPT(dev) && !is_cpu_edp(intel_dp))
                intel_dp->DP |= DP_LINK_TRAIN_OFF_CPT;
        else
                intel_dp->DP |= DP_LINK_TRAIN_OFF;
@@ -798,7 +870,7 @@ intel_dp_mode_set(struct drm_encoder *encoder, struct drm_display_mode *mode,
        if (intel_crtc->pipe == 1 && !HAS_PCH_CPT(dev))
                intel_dp->DP |= DP_PIPEB_SELECT;
-        if (is_edp(intel_dp) && !is_pch_edp(intel_dp)) {
+        if (is_cpu_edp(intel_dp)) {
                /* don't miss out required setting for eDP */
                intel_dp->DP |= DP_PLL_ENABLE;
                if (adjusted_mode->clock < 200000)
@@ -808,58 +880,150 @@ intel_dp_mode_set(struct drm_encoder *encoder, struct drm_display_mode *mode,
        }
 }
+static void ironlake_wait_panel_off(struct intel_dp *intel_dp)
+{
+        unsigned long   off_time;
+        unsigned long   delay;
+        DRM_DEBUG_KMS("Wait for panel power off time\n");
+        if (ironlake_edp_have_panel_power(intel_dp) ||
+            ironlake_edp_have_panel_vdd(intel_dp))
+        {
+                DRM_DEBUG_KMS("Panel still on, no delay needed\n");
+                return;
+        }
+        off_time = intel_dp->panel_off_jiffies + msecs_to_jiffies(intel_dp->panel_power_down_delay);
+        if (time_after(jiffies, off_time)) {
+                DRM_DEBUG_KMS("Time already passed");
+                return;
+        }
+        delay = jiffies_to_msecs(off_time - jiffies);
+        if (delay > intel_dp->panel_power_down_delay)
+                delay = intel_dp->panel_power_down_delay;
+        DRM_DEBUG_KMS("Waiting an additional %ld ms\n", delay);
+        msleep(delay);
+}
 static void ironlake_edp_panel_vdd_on(struct intel_dp *intel_dp)
 {
        struct drm_device *dev = intel_dp->base.base.dev;
        struct drm_i915_private *dev_priv = dev->dev_private;
        u32 pp;
-        /*
+        if (!is_edp(intel_dp))
-         * If the panel wasn't on, make sure there's not a currently
+                return;
-         * active PP sequence before enabling AUX VDD.
+        DRM_DEBUG_KMS("Turn eDP VDD on\n");
-         */
-        if (!(I915_READ(PCH_PP_STATUS) & PP_ON))
-                msleep(dev_priv->panel_t3);
+        WARN(intel_dp->want_panel_vdd,
+             "eDP VDD already requested on\n");
+        intel_dp->want_panel_vdd = true;
+        if (ironlake_edp_have_panel_vdd(intel_dp)) {
+                DRM_DEBUG_KMS("eDP VDD already on\n");
+                return;
+        }
+        ironlake_wait_panel_off(intel_dp);
        pp = I915_READ(PCH_PP_CONTROL);
+        pp &= ~PANEL_UNLOCK_MASK;
+        pp |= PANEL_UNLOCK_REGS;
        pp |= EDP_FORCE_VDD;
        I915_WRITE(PCH_PP_CONTROL, pp);
        POSTING_READ(PCH_PP_CONTROL);
+        DRM_DEBUG_KMS("PCH_PP_STATUS: 0x%08x PCH_PP_CONTROL: 0x%08x\n",
+                      I915_READ(PCH_PP_STATUS), I915_READ(PCH_PP_CONTROL));
+        /*
+         * If the panel wasn't on, delay before accessing aux channel
+         */
+        if (!ironlake_edp_have_panel_power(intel_dp)) {
+                DRM_DEBUG_KMS("eDP was not running\n");
+                msleep(intel_dp->panel_power_up_delay);
+        }
 }
-static void ironlake_edp_panel_vdd_off(struct intel_dp *intel_dp)
+static void ironlake_panel_vdd_off_sync(struct intel_dp *intel_dp)
 {
        struct drm_device *dev = intel_dp->base.base.dev;
        struct drm_i915_private *dev_priv = dev->dev_private;
        u32 pp;
-        pp = I915_READ(PCH_PP_CONTROL);
+        if (!intel_dp->want_panel_vdd && ironlake_edp_have_panel_vdd(intel_dp)) {
-        pp &= ~EDP_FORCE_VDD;
+                pp = I915_READ(PCH_PP_CONTROL);
-        I915_WRITE(PCH_PP_CONTROL, pp);
+                pp &= ~PANEL_UNLOCK_MASK;
-        POSTING_READ(PCH_PP_CONTROL);
+                pp |= PANEL_UNLOCK_REGS;
+                pp &= ~EDP_FORCE_VDD;
+                I915_WRITE(PCH_PP_CONTROL, pp);
+                POSTING_READ(PCH_PP_CONTROL);
+                /* Make sure sequencer is idle before allowing subsequent activity */
+                DRM_DEBUG_KMS("PCH_PP_STATUS: 0x%08x PCH_PP_CONTROL: 0x%08x\n",
+                              I915_READ(PCH_PP_STATUS), I915_READ(PCH_PP_CONTROL));
+                intel_dp->panel_off_jiffies = jiffies;
+        }
+}
-        /* Make sure sequencer is idle before allowing subsequent activity */
+static void ironlake_panel_vdd_work(struct work_struct *__work)
-        msleep(dev_priv->panel_t12);
+{
+        struct intel_dp *intel_dp = container_of(to_delayed_work(__work),
+                                                 struct intel_dp, panel_vdd_work);
+        struct drm_device *dev = intel_dp->base.base.dev;
+        mutex_lock(&dev->struct_mutex);
+        ironlake_panel_vdd_off_sync(intel_dp);
+        mutex_unlock(&dev->struct_mutex);
+}
+static void ironlake_edp_panel_vdd_off(struct intel_dp *intel_dp, bool sync)
+{
+        if (!is_edp(intel_dp))
+                return;
+        DRM_DEBUG_KMS("Turn eDP VDD off %d\n", intel_dp->want_panel_vdd);
+        WARN(!intel_dp->want_panel_vdd, "eDP VDD not forced on");
+        
+        intel_dp->want_panel_vdd = false;
+        if (sync) {
+                ironlake_panel_vdd_off_sync(intel_dp);
+        } else {
+                /*
+                 * Queue the timer to fire a long
+                 * time from now (relative to the power down delay)
+                 * to keep the panel power up across a sequence of operations
+                 */
+                schedule_delayed_work(&intel_dp->panel_vdd_work,
+                                      msecs_to_jiffies(intel_dp->panel_power_cycle_delay * 5));
+        }
 }
 /* Returns true if the panel was already on when called */
-static bool ironlake_edp_panel_on(struct intel_dp *intel_dp)
+static void ironlake_edp_panel_on(struct intel_dp *intel_dp)
 {
        struct drm_device *dev = intel_dp->base.base.dev;
        struct drm_i915_private *dev_priv = dev->dev_private;
        u32 pp, idle_on_mask = PP_ON | PP_SEQUENCE_STATE_ON_IDLE;
-        if (I915_READ(PCH_PP_STATUS) & PP_ON)
+        if (!is_edp(intel_dp))
-                return true;
+                return;
+        if (ironlake_edp_have_panel_power(intel_dp))
+                return;
+        ironlake_wait_panel_off(intel_dp);
        pp = I915_READ(PCH_PP_CONTROL);
+        pp &= ~PANEL_UNLOCK_MASK;
+        pp |= PANEL_UNLOCK_REGS;
+        if (IS_GEN5(dev)) {
+                /* ILK workaround: disable reset around power sequence */
+                pp &= ~PANEL_POWER_RESET;
+                I915_WRITE(PCH_PP_CONTROL, pp);
+                POSTING_READ(PCH_PP_CONTROL);
+        }
-        /* ILK workaround: disable reset around power sequence */
+        pp |= POWER_TARGET_ON;
-        pp &= ~PANEL_POWER_RESET;
-        I915_WRITE(PCH_PP_CONTROL, pp);
-        POSTING_READ(PCH_PP_CONTROL);
-        pp |= PANEL_UNLOCK_REGS | POWER_TARGET_ON;
        I915_WRITE(PCH_PP_CONTROL, pp);
        POSTING_READ(PCH_PP_CONTROL);
@@ -868,44 +1032,64 @@ static bool ironlake_edp_panel_on(struct intel_dp *intel_dp)
                DRM_ERROR("panel on wait timed out: 0x%08x\n",
                          I915_READ(PCH_PP_STATUS));
-        pp |= PANEL_POWER_RESET; /* restore panel reset bit */
+        if (IS_GEN5(dev)) {
-        I915_WRITE(PCH_PP_CONTROL, pp);
+                pp |= PANEL_POWER_RESET; /* restore panel reset bit */
-        POSTING_READ(PCH_PP_CONTROL);
+                I915_WRITE(PCH_PP_CONTROL, pp);
+                POSTING_READ(PCH_PP_CONTROL);
-        return false;
+        }
 }
-static void ironlake_edp_panel_off(struct drm_device *dev)
+static void ironlake_edp_panel_off(struct drm_encoder *encoder)
 {
+        struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
+        struct drm_device *dev = encoder->dev;
        struct drm_i915_private *dev_priv = dev->dev_private;
        u32 pp, idle_off_mask = PP_ON | PP_SEQUENCE_MASK |
                PP_CYCLE_DELAY_ACTIVE | PP_SEQUENCE_STATE_MASK;
+        if (!is_edp(intel_dp))
+                return;
        pp = I915_READ(PCH_PP_CONTROL);
+        pp &= ~PANEL_UNLOCK_MASK;
+        pp |= PANEL_UNLOCK_REGS;
+        if (IS_GEN5(dev)) {
+                /* ILK workaround: disable reset around power sequence */
+                pp &= ~PANEL_POWER_RESET;
+                I915_WRITE(PCH_PP_CONTROL, pp);
+                POSTING_READ(PCH_PP_CONTROL);
+        }
-        /* ILK workaround: disable reset around power sequence */
+        intel_dp->panel_off_jiffies = jiffies;
-        pp &= ~PANEL_POWER_RESET;
-        I915_WRITE(PCH_PP_CONTROL, pp);
-        POSTING_READ(PCH_PP_CONTROL);
-        pp &= ~POWER_TARGET_ON;
+        if (IS_GEN5(dev)) {
-        I915_WRITE(PCH_PP_CONTROL, pp);
+                pp &= ~POWER_TARGET_ON;
-        POSTING_READ(PCH_PP_CONTROL);
+                I915_WRITE(PCH_PP_CONTROL, pp);
+                POSTING_READ(PCH_PP_CONTROL);
+                pp &= ~POWER_TARGET_ON;
+                I915_WRITE(PCH_PP_CONTROL, pp);
+                POSTING_READ(PCH_PP_CONTROL);
+                msleep(intel_dp->panel_power_cycle_delay);
-        if (wait_for((I915_READ(PCH_PP_STATUS) & idle_off_mask) == 0, 5000))
+                if (wait_for((I915_READ(PCH_PP_STATUS) & idle_off_mask) == 0, 5000))
-                DRM_ERROR("panel off wait timed out: 0x%08x\n",
+                        DRM_ERROR("panel off wait timed out: 0x%08x\n",
-                          I915_READ(PCH_PP_STATUS));
+                                  I915_READ(PCH_PP_STATUS));
-        pp |= PANEL_POWER_RESET; /* restore panel reset bit */
+                pp |= PANEL_POWER_RESET; /* restore panel reset bit */
-        I915_WRITE(PCH_PP_CONTROL, pp);
+                I915_WRITE(PCH_PP_CONTROL, pp);
-        POSTING_READ(PCH_PP_CONTROL);
+                POSTING_READ(PCH_PP_CONTROL);
+        }
 }
-static void ironlake_edp_backlight_on(struct drm_device *dev)
+static void ironlake_edp_backlight_on(struct intel_dp *intel_dp)
 {
+        struct drm_device *dev = intel_dp->base.base.dev;
        struct drm_i915_private *dev_priv = dev->dev_private;
        u32 pp;
+        if (!is_edp(intel_dp))
+                return;
        DRM_DEBUG_KMS("\n");
        /*
         * If we enable the backlight right away following a panel power
@@ -913,21 +1097,32 @@ static void ironlake_edp_backlight_on(struct drm_device *dev)
         * link.  So delay a bit to make sure the image is solid before
         * allowing it to appear.
         */
-        msleep(300);
+        msleep(intel_dp->backlight_on_delay);
        pp = I915_READ(PCH_PP_CONTROL);
+        pp &= ~PANEL_UNLOCK_MASK;
+        pp |= PANEL_UNLOCK_REGS;
        pp |= EDP_BLC_ENABLE;
        I915_WRITE(PCH_PP_CONTROL, pp);
+        POSTING_READ(PCH_PP_CONTROL);
 }
-static void ironlake_edp_backlight_off(struct drm_device *dev)
+static void ironlake_edp_backlight_off(struct intel_dp *intel_dp)
 {
+        struct drm_device *dev = intel_dp->base.base.dev;
        struct drm_i915_private *dev_priv = dev->dev_private;
        u32 pp;
+        if (!is_edp(intel_dp))
+                return;
        DRM_DEBUG_KMS("\n");
        pp = I915_READ(PCH_PP_CONTROL);
+        pp &= ~PANEL_UNLOCK_MASK;
+        pp |= PANEL_UNLOCK_REGS;
        pp &= ~EDP_BLC_ENABLE;
        I915_WRITE(PCH_PP_CONTROL, pp);
+        POSTING_READ(PCH_PP_CONTROL);
+        msleep(intel_dp->backlight_off_delay);
 }
 static void ironlake_edp_pll_on(struct drm_encoder *encoder)
@@ -990,43 +1185,39 @@ static void intel_dp_sink_dpms(struct intel_dp *intel_dp, int mode)
 static void intel_dp_prepare(struct drm_encoder *encoder)
 {
        struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
-        struct drm_device *dev = encoder->dev;
        /* Wake up the sink first */
+        ironlake_edp_panel_vdd_on(intel_dp);
        intel_dp_sink_dpms(intel_dp, DRM_MODE_DPMS_ON);
+        ironlake_edp_panel_vdd_off(intel_dp, false);
-        if (is_edp(intel_dp)) {
+        /* Make sure the panel is off before trying to
-                ironlake_edp_backlight_off(dev);
+         * change the mode
-                ironlake_edp_panel_off(dev);
+         */
-                if (!is_pch_edp(intel_dp))
+        ironlake_edp_backlight_off(intel_dp);
-                        ironlake_edp_pll_on(encoder);
-                else
-                        ironlake_edp_pll_off(encoder);
-        }
        intel_dp_link_down(intel_dp);
+        ironlake_edp_panel_off(encoder);
 }
 static void intel_dp_commit(struct drm_encoder *encoder)
 {
        struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
        struct drm_device *dev = encoder->dev;
+        struct intel_crtc *intel_crtc = to_intel_crtc(intel_dp->base.base.crtc);
-        if (is_edp(intel_dp))
+        ironlake_edp_panel_vdd_on(intel_dp);
-                ironlake_edp_panel_vdd_on(intel_dp);
+        intel_dp_sink_dpms(intel_dp, DRM_MODE_DPMS_ON);
        intel_dp_start_link_train(intel_dp);
+        ironlake_edp_panel_on(intel_dp);
-        if (is_edp(intel_dp)) {
+        ironlake_edp_panel_vdd_off(intel_dp, true);
-                ironlake_edp_panel_on(intel_dp);
-                ironlake_edp_panel_vdd_off(intel_dp);
-        }
        intel_dp_complete_link_train(intel_dp);
+        ironlake_edp_backlight_on(intel_dp);
-        if (is_edp(intel_dp))
-                ironlake_edp_backlight_on(dev);
        intel_dp->dpms_mode = DRM_MODE_DPMS_ON;
+        if (HAS_PCH_CPT(dev))
+                intel_cpt_verify_modeset(dev, intel_crtc->pipe);
 }
 static void
@@ -1038,28 +1229,27 @@ intel_dp_dpms(struct drm_encoder *encoder, int mode)
        uint32_t dp_reg = I915_READ(intel_dp->output_reg);
        if (mode != DRM_MODE_DPMS_ON) {
+                ironlake_edp_panel_vdd_on(intel_dp);
                if (is_edp(intel_dp))
-                        ironlake_edp_backlight_off(dev);
+                        ironlake_edp_backlight_off(intel_dp);
                intel_dp_sink_dpms(intel_dp, mode);
                intel_dp_link_down(intel_dp);
-                if (is_edp(intel_dp))
+                ironlake_edp_panel_off(encoder);
-                        ironlake_edp_panel_off(dev);
                if (is_edp(intel_dp) && !is_pch_edp(intel_dp))
                        ironlake_edp_pll_off(encoder);
+                ironlake_edp_panel_vdd_off(intel_dp, false);
        } else {
-                if (is_edp(intel_dp))
+                ironlake_edp_panel_vdd_on(intel_dp);
-                        ironlake_edp_panel_vdd_on(intel_dp);
                intel_dp_sink_dpms(intel_dp, mode);
                if (!(dp_reg & DP_PORT_EN)) {
                        intel_dp_start_link_train(intel_dp);
-                        if (is_edp(intel_dp)) {
+                        ironlake_edp_panel_on(intel_dp);
-                                ironlake_edp_panel_on(intel_dp);
+                        ironlake_edp_panel_vdd_off(intel_dp, true);
-                                ironlake_edp_panel_vdd_off(intel_dp);
-                        }
                        intel_dp_complete_link_train(intel_dp);
-                }
+                        ironlake_edp_backlight_on(intel_dp);
-                if (is_edp(intel_dp))
+                } else
-                        ironlake_edp_backlight_on(dev);
+                        ironlake_edp_panel_vdd_off(intel_dp, false);
+                ironlake_edp_backlight_on(intel_dp);
        }
        intel_dp->dpms_mode = mode;
 }
@@ -1368,7 +1558,7 @@ intel_dp_start_link_train(struct intel_dp *intel_dp)
                                  DP_LINK_CONFIGURATION_SIZE);
        DP |= DP_PORT_EN;
-        if (HAS_PCH_CPT(dev) && !is_edp(intel_dp))
+        if (HAS_PCH_CPT(dev) && !is_cpu_edp(intel_dp))
                DP &= ~DP_LINK_TRAIN_MASK_CPT;
        else
                DP &= ~DP_LINK_TRAIN_MASK;
@@ -1387,7 +1577,7 @@ intel_dp_start_link_train(struct intel_dp *intel_dp)
                        DP = (DP & ~(DP_VOLTAGE_MASK|DP_PRE_EMPHASIS_MASK)) | signal_levels;
                }
-                if (HAS_PCH_CPT(dev) && !is_edp(intel_dp))
+                if (HAS_PCH_CPT(dev) && !is_cpu_edp(intel_dp))
                        reg = DP | DP_LINK_TRAIN_PAT_1_CPT;
                else
                        reg = DP | DP_LINK_TRAIN_PAT_1;
@@ -1462,7 +1652,7 @@ intel_dp_complete_link_train(struct intel_dp *intel_dp)
                        DP = (DP & ~(DP_VOLTAGE_MASK|DP_PRE_EMPHASIS_MASK)) | signal_levels;
                }
-                if (HAS_PCH_CPT(dev) && !is_edp(intel_dp))
+                if (HAS_PCH_CPT(dev) && !is_cpu_edp(intel_dp))
                        reg = DP | DP_LINK_TRAIN_PAT_2_CPT;
                else
                        reg = DP | DP_LINK_TRAIN_PAT_2;
@@ -1503,7 +1693,7 @@ intel_dp_complete_link_train(struct intel_dp *intel_dp)
                ++tries;
        }
-        if (HAS_PCH_CPT(dev) && !is_edp(intel_dp))
+        if (HAS_PCH_CPT(dev) && !is_cpu_edp(intel_dp))
                reg = DP | DP_LINK_TRAIN_OFF_CPT;
        else
                reg = DP | DP_LINK_TRAIN_OFF;
@@ -1533,7 +1723,7 @@ intel_dp_link_down(struct intel_dp *intel_dp)
                udelay(100);
        }
-        if (HAS_PCH_CPT(dev) && !is_edp(intel_dp)) {
+        if (HAS_PCH_CPT(dev) && !is_cpu_edp(intel_dp)) {
                DP &= ~DP_LINK_TRAIN_MASK_CPT;
                I915_WRITE(intel_dp->output_reg, DP | DP_LINK_TRAIN_PAT_IDLE_CPT);
        } else {
@@ -1582,6 +1772,7 @@ intel_dp_link_down(struct intel_dp *intel_dp)
        I915_WRITE(intel_dp->output_reg, DP & ~DP_PORT_EN);
        POSTING_READ(intel_dp->output_reg);
+        msleep(intel_dp->panel_power_down_delay);
 }
 static bool
@@ -1596,6 +1787,27 @@ intel_dp_get_dpcd(struct intel_dp *intel_dp)
        return false;
 }
+static bool
+intel_dp_get_sink_irq(struct intel_dp *intel_dp, u8 *sink_irq_vector)
+{
+        int ret;
+        ret = intel_dp_aux_native_read_retry(intel_dp,
+                                             DP_DEVICE_SERVICE_IRQ_VECTOR,
+                                             sink_irq_vector, 1);
+        if (!ret)
+                return false;
+        return true;
+}
+static void
+intel_dp_handle_test_request(struct intel_dp *intel_dp)
+{
+        /* NAK by default */
+        intel_dp_aux_native_write_1(intel_dp, DP_TEST_RESPONSE, DP_TEST_ACK);
+}
 /*
 * According to DP spec
 * 5.1.2:
@@ -1608,6 +1820,8 @@ intel_dp_get_dpcd(struct intel_dp *intel_dp)
 static void
 intel_dp_check_link_status(struct intel_dp *intel_dp)
 {
+        u8 sink_irq_vector;
        if (intel_dp->dpms_mode != DRM_MODE_DPMS_ON)
                return;
@@ -1626,6 +1840,20 @@ intel_dp_check_link_status(struct intel_dp *intel_dp)
                return;
        }
+        /* Try to read the source of the interrupt */
+        if (intel_dp->dpcd[DP_DPCD_REV] >= 0x11 &&
+            intel_dp_get_sink_irq(intel_dp, &sink_irq_vector)) {
+                /* Clear interrupt source */
+                intel_dp_aux_native_write_1(intel_dp,
+                                            DP_DEVICE_SERVICE_IRQ_VECTOR,
+                                            sink_irq_vector);
+                if (sink_irq_vector & DP_AUTOMATED_TEST_REQUEST)
+                        intel_dp_handle_test_request(intel_dp);
+                if (sink_irq_vector & (DP_CP_IRQ | DP_SINK_SPECIFIC_IRQ))
+                        DRM_DEBUG_DRIVER("CP or sink specific irq unhandled\n");
+        }
        if (!intel_channel_eq_ok(intel_dp)) {
                DRM_DEBUG_KMS("%s: channel EQ not ok, retraining\n",
                              drm_get_encoder_name(&intel_dp->base.base));
@@ -1687,6 +1915,31 @@ g4x_dp_detect(struct intel_dp *intel_dp)
        return intel_dp_detect_dpcd(intel_dp);
 }
+static struct edid *
+intel_dp_get_edid(struct drm_connector *connector, struct i2c_adapter *adapter)
+{
+        struct intel_dp *intel_dp = intel_attached_dp(connector);
+        struct edid     *edid;
+        ironlake_edp_panel_vdd_on(intel_dp);
+        edid = drm_get_edid(connector, adapter);
+        ironlake_edp_panel_vdd_off(intel_dp, false);
+        return edid;
+}
+static int
+intel_dp_get_edid_modes(struct drm_connector *connector, struct i2c_adapter *adapter)
+{
+        struct intel_dp *intel_dp = intel_attached_dp(connector);
+        int     ret;
+        ironlake_edp_panel_vdd_on(intel_dp);
+        ret = intel_ddc_get_modes(connector, adapter);
+        ironlake_edp_panel_vdd_off(intel_dp, false);
+        return ret;
+}
 /**
 * Uses CRT_HOTPLUG_EN and CRT_HOTPLUG_STAT to detect DP connection.
 *
@@ -1719,7 +1972,7 @@ intel_dp_detect(struct drm_connector *connector, bool force)
        if (intel_dp->force_audio) {
                intel_dp->has_audio = intel_dp->force_audio > 0;
        } else {
-                edid = drm_get_edid(connector, &intel_dp->adapter);
+                edid = intel_dp_get_edid(connector, &intel_dp->adapter);
                if (edid) {
                        intel_dp->has_audio = drm_detect_monitor_audio(edid);
                        connector->display_info.raw_edid = NULL;
@@ -1740,28 +1993,36 @@ static int intel_dp_get_modes(struct drm_connector *connector)
        /* We should parse the EDID data and find out if it has an audio sink
         */
-        ret = intel_ddc_get_modes(connector, &intel_dp->adapter);
+        ret = intel_dp_get_edid_modes(connector, &intel_dp->adapter);
        if (ret) {
-                if (is_edp(intel_dp) && !dev_priv->panel_fixed_mode) {
+                if (is_edp(intel_dp) && !intel_dp->panel_fixed_mode) {
                        struct drm_display_mode *newmode;
                        list_for_each_entry(newmode, &connector->probed_modes,
                                            head) {
-                                if (newmode->type & DRM_MODE_TYPE_PREFERRED) {
+                                if ((newmode->type & DRM_MODE_TYPE_PREFERRED)) {
-                                        dev_priv->panel_fixed_mode =
+                                        intel_dp->panel_fixed_mode =
                                                drm_mode_duplicate(dev, newmode);
                                        break;
                                }
                        }
                }
                return ret;
        }
        /* if eDP has no EDID, try to use fixed panel mode from VBT */
        if (is_edp(intel_dp)) {
-                if (dev_priv->panel_fixed_mode != NULL) {
+                /* initialize panel mode from VBT if available for eDP */
+                if (intel_dp->panel_fixed_mode == NULL && dev_priv->lfp_lvds_vbt_mode != NULL) {
+                        intel_dp->panel_fixed_mode =
+                                drm_mode_duplicate(dev, dev_priv->lfp_lvds_vbt_mode);
+                        if (intel_dp->panel_fixed_mode) {
+                                intel_dp->panel_fixed_mode->type |=
+                                        DRM_MODE_TYPE_PREFERRED;
+                        }
+                }
+                if (intel_dp->panel_fixed_mode) {
                        struct drm_display_mode *mode;
-                        mode = drm_mode_duplicate(dev, dev_priv->panel_fixed_mode);
+                        mode = drm_mode_duplicate(dev, intel_dp->panel_fixed_mode);
                        drm_mode_probed_add(connector, mode);
                        return 1;
                }
@@ -1776,7 +2037,7 @@ intel_dp_detect_audio(struct drm_connector *connector)
        struct edid *edid;
        bool has_audio = false;
-        edid = drm_get_edid(connector, &intel_dp->adapter);
+        edid = intel_dp_get_edid(connector, &intel_dp->adapter);
        if (edid) {
                has_audio = drm_detect_monitor_audio(edid);
@@ -1861,6 +2122,10 @@ static void intel_dp_encoder_destroy(struct drm_encoder *encoder)
        i2c_del_adapter(&intel_dp->adapter);
        drm_encoder_cleanup(encoder);
+        if (is_edp(intel_dp)) {
+                cancel_delayed_work_sync(&intel_dp->panel_vdd_work);
+                ironlake_panel_vdd_off_sync(intel_dp);
+        }
        kfree(intel_dp);
 }
@@ -1997,10 +2262,13 @@ intel_dp_init(struct drm_device *dev, int output_reg)
        else if (output_reg == DP_D || output_reg == PCH_DP_D)
                intel_encoder->clone_mask = (1 << INTEL_DP_D_CLONE_BIT);
-        if (is_edp(intel_dp))
+        if (is_edp(intel_dp)) {
                intel_encoder->clone_mask = (1 << INTEL_EDP_CLONE_BIT);
+                INIT_DELAYED_WORK(&intel_dp->panel_vdd_work,
+                                  ironlake_panel_vdd_work);
+        }
-        intel_encoder->crtc_mask = (1 << 0) | (1 << 1);
+        intel_encoder->crtc_mask = (1 << 0) | (1 << 1) | (1 << 2);
        connector->interlace_allowed = true;
        connector->doublescan_allowed = 0;
@@ -2036,25 +2304,60 @@ intel_dp_init(struct drm_device *dev, int output_reg)
                        break;
        }
-        intel_dp_i2c_init(intel_dp, intel_connector, name);
        /* Cache some DPCD data in the eDP case */
        if (is_edp(intel_dp)) {
                bool ret;
-                u32 pp_on, pp_div;
+                struct edp_power_seq    cur, vbt;
+                u32 pp_on, pp_off, pp_div;
                pp_on = I915_READ(PCH_PP_ON_DELAYS);
+                pp_off = I915_READ(PCH_PP_OFF_DELAYS);
                pp_div = I915_READ(PCH_PP_DIVISOR);
-                /* Get T3 & T12 values (note: VESA not bspec terminology) */
+                /* Pull timing values out of registers */
-                dev_priv->panel_t3 = (pp_on & 0x1fff0000) >> 16;
+                cur.t1_t3 = (pp_on & PANEL_POWER_UP_DELAY_MASK) >>
-                dev_priv->panel_t3 /= 10; /* t3 in 100us units */
+                        PANEL_POWER_UP_DELAY_SHIFT;
-                dev_priv->panel_t12 = pp_div & 0xf;
-                dev_priv->panel_t12 *= 100; /* t12 in 100ms units */
+                cur.t8 = (pp_on & PANEL_LIGHT_ON_DELAY_MASK) >>
+                        PANEL_LIGHT_ON_DELAY_SHIFT;
+                
+                cur.t9 = (pp_off & PANEL_LIGHT_OFF_DELAY_MASK) >>
+                        PANEL_LIGHT_OFF_DELAY_SHIFT;
+                cur.t10 = (pp_off & PANEL_POWER_DOWN_DELAY_MASK) >>
+                        PANEL_POWER_DOWN_DELAY_SHIFT;
+                cur.t11_t12 = ((pp_div & PANEL_POWER_CYCLE_DELAY_MASK) >>
+                               PANEL_POWER_CYCLE_DELAY_SHIFT) * 1000;
+                DRM_DEBUG_KMS("cur t1_t3 %d t8 %d t9 %d t10 %d t11_t12 %d\n",
+                              cur.t1_t3, cur.t8, cur.t9, cur.t10, cur.t11_t12);
+                vbt = dev_priv->edp.pps;
+                DRM_DEBUG_KMS("vbt t1_t3 %d t8 %d t9 %d t10 %d t11_t12 %d\n",
+                              vbt.t1_t3, vbt.t8, vbt.t9, vbt.t10, vbt.t11_t12);
+#define get_delay(field)        ((max(cur.field, vbt.field) + 9) / 10)
+                intel_dp->panel_power_up_delay = get_delay(t1_t3);
+                intel_dp->backlight_on_delay = get_delay(t8);
+                intel_dp->backlight_off_delay = get_delay(t9);
+                intel_dp->panel_power_down_delay = get_delay(t10);
+                intel_dp->panel_power_cycle_delay = get_delay(t11_t12);
+                DRM_DEBUG_KMS("panel power up delay %d, power down delay %d, power cycle delay %d\n",
+                              intel_dp->panel_power_up_delay, intel_dp->panel_power_down_delay,
+                              intel_dp->panel_power_cycle_delay);
+                DRM_DEBUG_KMS("backlight on delay %d, off delay %d\n",
+                              intel_dp->backlight_on_delay, intel_dp->backlight_off_delay);
+                intel_dp->panel_off_jiffies = jiffies - intel_dp->panel_power_down_delay;
                ironlake_edp_panel_vdd_on(intel_dp);
                ret = intel_dp_get_dpcd(intel_dp);
-                ironlake_edp_panel_vdd_off(intel_dp);
+                ironlake_edp_panel_vdd_off(intel_dp, false);
                if (ret) {
                        if (intel_dp->dpcd[DP_DPCD_REV] >= 0x11)
                                dev_priv->no_aux_handshake =
@@ -2069,18 +2372,11 @@ intel_dp_init(struct drm_device *dev, int output_reg)
                }
        }
+        intel_dp_i2c_init(intel_dp, intel_connector, name);
        intel_encoder->hot_plug = intel_dp_hot_plug;
        if (is_edp(intel_dp)) {
-                /* initialize panel mode from VBT if available for eDP */
-                if (dev_priv->lfp_lvds_vbt_mode) {
-                        dev_priv->panel_fixed_mode =
-                                drm_mode_duplicate(dev, dev_priv->lfp_lvds_vbt_mode);
-                        if (dev_priv->panel_fixed_mode) {
-                                dev_priv->panel_fixed_mode->type |=
-                                        DRM_MODE_TYPE_PREFERRED;
-                        }
-                }
                dev_priv->int_edp_connector = connector;
                intel_panel_setup_backlight(dev);
        }
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 98044d626a8d..bd9a604b73da 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -171,6 +171,9 @@ struct intel_crtc {
        int16_t cursor_width, cursor_height;
        bool cursor_visible;
        unsigned int bpp;
+        bool no_pll; /* tertiary pipe for IVB */
+        bool use_pll_a;
 };
 #define to_intel_crtc(x) container_of(x, struct intel_crtc, base)
@@ -184,7 +187,7 @@ struct intel_crtc {
 #define DIP_VERSION_AVI 0x2
 #define DIP_LEN_AVI     13
-#define DIP_TYPE_SPD    0x3
+#define DIP_TYPE_SPD    0x83
 #define DIP_VERSION_SPD 0x1
 #define DIP_LEN_SPD     25
 #define DIP_SPD_UNKNOWN 0
@@ -379,4 +382,6 @@ extern void intel_fb_restore_mode(struct drm_device *dev);
 extern void intel_init_clock_gating(struct drm_device *dev);
 extern void intel_write_eld(struct drm_encoder *encoder,
                            struct drm_display_mode *mode);
+extern void intel_cpt_verify_modeset(struct drm_device *dev, int pipe);
 #endif /* __INTEL_DRV_H__ */
diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c
index 75026ba41a8e..d4f5a0b2120d 100644
--- a/drivers/gpu/drm/i915/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/intel_hdmi.c
@@ -69,8 +69,7 @@ void intel_dip_infoframe_csum(struct dip_infoframe *frame)
        frame->checksum = 0;
        frame->ecc = 0;
-        /* Header isn't part of the checksum */
+        for (i = 0; i < frame->len + DIP_HEADER_SIZE; i++)
-        for (i = 5; i < frame->len; i++)
                sum += data[i];
        frame->checksum = 0x100 - sum;
@@ -104,7 +103,7 @@ static u32 intel_infoframe_flags(struct dip_infoframe *frame)
                flags |= VIDEO_DIP_ENABLE_AVI | VIDEO_DIP_FREQ_VSYNC;
                break;
        case DIP_TYPE_SPD:
-                flags |= VIDEO_DIP_ENABLE_SPD | VIDEO_DIP_FREQ_2VSYNC;
+                flags |= VIDEO_DIP_ENABLE_SPD | VIDEO_DIP_FREQ_VSYNC;
                break;
        default:
                DRM_DEBUG_DRIVER("unknown info frame type %d\n", frame->type);
@@ -165,9 +164,9 @@ static void ironlake_write_infoframe(struct drm_encoder *encoder,
        flags = intel_infoframe_index(frame);
-        val &= ~VIDEO_DIP_SELECT_MASK;
+        val &= ~(VIDEO_DIP_SELECT_MASK | 0xf); /* clear DIP data offset */
-        I915_WRITE(reg, val | flags);
+        I915_WRITE(reg, VIDEO_DIP_ENABLE | val | flags);
        for (i = 0; i < len; i += 4) {
                I915_WRITE(TVIDEO_DIP_DATA(intel_crtc->pipe), *data);
@@ -252,12 +251,10 @@ static void intel_hdmi_mode_set(struct drm_encoder *encoder,
                intel_write_eld(encoder, adjusted_mode);
        }
-        if (intel_crtc->pipe == 1) {
+        if (HAS_PCH_CPT(dev))
-                if (HAS_PCH_CPT(dev))
+                sdvox |= PORT_TRANS_SEL_CPT(intel_crtc->pipe);
-                        sdvox |= PORT_TRANS_B_SEL_CPT;
+        else if (intel_crtc->pipe == 1)
-                else
+                sdvox |= SDVO_PIPE_B_SELECT;
-                        sdvox |= SDVO_PIPE_B_SELECT;
-        }
        I915_WRITE(intel_hdmi->sdvox_reg, sdvox);
        POSTING_READ(intel_hdmi->sdvox_reg);
@@ -489,6 +486,7 @@ void intel_hdmi_init(struct drm_device *dev, int sdvox_reg)
        struct intel_encoder *intel_encoder;
        struct intel_connector *intel_connector;
        struct intel_hdmi *intel_hdmi;
+        int i;
        intel_hdmi = kzalloc(sizeof(struct intel_hdmi), GFP_KERNEL);
        if (!intel_hdmi)
@@ -514,7 +512,7 @@ void intel_hdmi_init(struct drm_device *dev, int sdvox_reg)
        connector->polled = DRM_CONNECTOR_POLL_HPD;
        connector->interlace_allowed = 0;
        connector->doublescan_allowed = 0;
-        intel_encoder->crtc_mask = (1 << 0) | (1 << 1);
+        intel_encoder->crtc_mask = (1 << 0) | (1 << 1) | (1 << 2);
        /* Set up the DDC bus. */
        if (sdvox_reg == SDVOB) {
@@ -541,10 +539,14 @@ void intel_hdmi_init(struct drm_device *dev, int sdvox_reg)
        intel_hdmi->sdvox_reg = sdvox_reg;
-        if (!HAS_PCH_SPLIT(dev))
+        if (!HAS_PCH_SPLIT(dev)) {
                intel_hdmi->write_infoframe = i9xx_write_infoframe;
-        else
+                I915_WRITE(VIDEO_DIP_CTL, 0);
+        } else {
                intel_hdmi->write_infoframe = ironlake_write_infoframe;
+                for_each_pipe(i)
+                        I915_WRITE(TVIDEO_DIP_CTL(i), 0);
+        }
        drm_encoder_helper_add(&intel_encoder->base, &intel_hdmi_helper_funcs);
diff --git a/drivers/gpu/drm/i915/intel_i2c.c b/drivers/gpu/drm/i915/intel_i2c.c
index d98cee60b602..9ed5380e5a53 100644
--- a/drivers/gpu/drm/i915/intel_i2c.c
+++ b/drivers/gpu/drm/i915/intel_i2c.c
@@ -422,13 +422,7 @@ void intel_gmbus_set_speed(struct i2c_adapter *adapter, int speed)
 {
        struct intel_gmbus *bus = to_intel_gmbus(adapter);
-        /* speed:
+        bus->reg0 = (bus->reg0 & ~(0x3 << 8)) | speed;
-         * 0x0 = 100 KHz
-         * 0x1 = 50 KHz
-         * 0x2 = 400 KHz
-         * 0x3 = 1000 Khz
-         */
-        bus->reg0 = (bus->reg0 & ~(0x3 << 8)) | (speed << 8);
 }
 void intel_gmbus_force_bit(struct i2c_adapter *adapter, bool force_bit)
diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c
index 31da77f5c051..42f165a520de 100644
--- a/drivers/gpu/drm/i915/intel_lvds.c
+++ b/drivers/gpu/drm/i915/intel_lvds.c
@@ -888,9 +888,11 @@ bool intel_lvds_init(struct drm_device *dev)
        intel_encoder->type = INTEL_OUTPUT_LVDS;
        intel_encoder->clone_mask = (1 << INTEL_LVDS_CLONE_BIT);
-        intel_encoder->crtc_mask = (1 << 1);
+        if (HAS_PCH_SPLIT(dev))
-        if (INTEL_INFO(dev)->gen >= 5)
+                intel_encoder->crtc_mask = (1 << 0) | (1 << 1) | (1 << 2);
-                intel_encoder->crtc_mask |= (1 << 0);
+        else
+                intel_encoder->crtc_mask = (1 << 1);
        drm_encoder_helper_add(encoder, &intel_lvds_helper_funcs);
        drm_connector_helper_add(connector, &intel_lvds_connector_helper_funcs);
        connector->display_info.subpixel_order = SubPixelHorizontalRGB;
diff --git a/drivers/gpu/drm/i915/intel_panel.c b/drivers/gpu/drm/i915/intel_panel.c
index 03500e94a73f..499d4c0dbeeb 100644
--- a/drivers/gpu/drm/i915/intel_panel.c
+++ b/drivers/gpu/drm/i915/intel_panel.c
@@ -226,7 +226,7 @@ static void intel_pch_panel_set_backlight(struct drm_device *dev, u32 level)
        I915_WRITE(BLC_PWM_CPU_CTL, val | level);
 }
-void intel_panel_set_backlight(struct drm_device *dev, u32 level)
+static void intel_panel_actually_set_backlight(struct drm_device *dev, u32 level)
 {
        struct drm_i915_private *dev_priv = dev->dev_private;
        u32 tmp;
@@ -254,16 +254,21 @@ void intel_panel_set_backlight(struct drm_device *dev, u32 level)
        I915_WRITE(BLC_PWM_CTL, tmp | level);
 }
-void intel_panel_disable_backlight(struct drm_device *dev)
+void intel_panel_set_backlight(struct drm_device *dev, u32 level)
 {
        struct drm_i915_private *dev_priv = dev->dev_private;
-        if (dev_priv->backlight_enabled) {
+        dev_priv->backlight_level = level;
-                dev_priv->backlight_level = intel_panel_get_backlight(dev);
+        if (dev_priv->backlight_enabled)
-                dev_priv->backlight_enabled = false;
+                intel_panel_actually_set_backlight(dev, level);
-        }
+}
+void intel_panel_disable_backlight(struct drm_device *dev)
+{
+        struct drm_i915_private *dev_priv = dev->dev_private;
-        intel_panel_set_backlight(dev, 0);
+        dev_priv->backlight_enabled = false;
+        intel_panel_actually_set_backlight(dev, 0);
 }
 void intel_panel_enable_backlight(struct drm_device *dev)
@@ -273,8 +278,8 @@ void intel_panel_enable_backlight(struct drm_device *dev)
        if (dev_priv->backlight_level == 0)
                dev_priv->backlight_level = intel_panel_get_max_backlight(dev);
-        intel_panel_set_backlight(dev, dev_priv->backlight_level);
        dev_priv->backlight_enabled = true;
+        intel_panel_actually_set_backlight(dev, dev_priv->backlight_level);
 }
 static void intel_panel_init_backlight(struct drm_device *dev)
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index 0e99589b54e0..ca70e2f10445 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -34,6 +34,16 @@
 #include "i915_trace.h"
 #include "intel_drv.h"
+/*
+ * 965+ support PIPE_CONTROL commands, which provide finer grained control
+ * over cache flushing.
+ */
+struct pipe_control {
+        struct drm_i915_gem_object *obj;
+        volatile u32 *cpu_page;
+        u32 gtt_offset;
+};
 static inline int ring_space(struct intel_ring_buffer *ring)
 {
        int space = (ring->head & HEAD_ADDR) - (ring->tail + 8);
@@ -123,6 +133,118 @@ render_ring_flush(struct intel_ring_buffer *ring,
        return 0;
 }
+/**
+ * Emits a PIPE_CONTROL with a non-zero post-sync operation, for
+ * implementing two workarounds on gen6.  From section 1.4.7.1
+ * "PIPE_CONTROL" of the Sandy Bridge PRM volume 2 part 1:
+ *
+ * [DevSNB-C+{W/A}] Before any depth stall flush (including those
+ * produced by non-pipelined state commands), software needs to first
+ * send a PIPE_CONTROL with no bits set except Post-Sync Operation !=
+ * 0.
+ *
+ * [Dev-SNB{W/A}]: Before a PIPE_CONTROL with Write Cache Flush Enable
+ * =1, a PIPE_CONTROL with any non-zero post-sync-op is required.
+ *
+ * And the workaround for these two requires this workaround first:
+ *
+ * [Dev-SNB{W/A}]: Pipe-control with CS-stall bit set must be sent
+ * BEFORE the pipe-control with a post-sync op and no write-cache
+ * flushes.
+ *
+ * And this last workaround is tricky because of the requirements on
+ * that bit.  From section 1.4.7.2.3 "Stall" of the Sandy Bridge PRM
+ * volume 2 part 1:
+ *
+ *     "1 of the following must also be set:
+ *      - Render Target Cache Flush Enable ([12] of DW1)
+ *      - Depth Cache Flush Enable ([0] of DW1)
+ *      - Stall at Pixel Scoreboard ([1] of DW1)
+ *      - Depth Stall ([13] of DW1)
+ *      - Post-Sync Operation ([13] of DW1)
+ *      - Notify Enable ([8] of DW1)"
+ *
+ * The cache flushes require the workaround flush that triggered this
+ * one, so we can't use it.  Depth stall would trigger the same.
+ * Post-sync nonzero is what triggered this second workaround, so we
+ * can't use that one either.  Notify enable is IRQs, which aren't
+ * really our business.  That leaves only stall at scoreboard.
+ */
+static int
+intel_emit_post_sync_nonzero_flush(struct intel_ring_buffer *ring)
+{
+        struct pipe_control *pc = ring->private;
+        u32 scratch_addr = pc->gtt_offset + 128;
+        int ret;
+        ret = intel_ring_begin(ring, 6);
+        if (ret)
+                return ret;
+        intel_ring_emit(ring, GFX_OP_PIPE_CONTROL(5));
+        intel_ring_emit(ring, PIPE_CONTROL_CS_STALL |
+                        PIPE_CONTROL_STALL_AT_SCOREBOARD);
+        intel_ring_emit(ring, scratch_addr | PIPE_CONTROL_GLOBAL_GTT); /* address */
+        intel_ring_emit(ring, 0); /* low dword */
+        intel_ring_emit(ring, 0); /* high dword */
+        intel_ring_emit(ring, MI_NOOP);
+        intel_ring_advance(ring);
+        ret = intel_ring_begin(ring, 6);
+        if (ret)
+                return ret;
+        intel_ring_emit(ring, GFX_OP_PIPE_CONTROL(5));
+        intel_ring_emit(ring, PIPE_CONTROL_QW_WRITE);
+        intel_ring_emit(ring, scratch_addr | PIPE_CONTROL_GLOBAL_GTT); /* address */
+        intel_ring_emit(ring, 0);
+        intel_ring_emit(ring, 0);
+        intel_ring_emit(ring, MI_NOOP);
+        intel_ring_advance(ring);
+        return 0;
+}
+static int
+gen6_render_ring_flush(struct intel_ring_buffer *ring,
+                         u32 invalidate_domains, u32 flush_domains)
+{
+        u32 flags = 0;
+        struct pipe_control *pc = ring->private;
+        u32 scratch_addr = pc->gtt_offset + 128;
+        int ret;
+        /* Force SNB workarounds for PIPE_CONTROL flushes */
+        intel_emit_post_sync_nonzero_flush(ring);
+        /* Just flush everything.  Experiments have shown that reducing the
+         * number of bits based on the write domains has little performance
+         * impact.
+         */
+        flags |= PIPE_CONTROL_RENDER_TARGET_CACHE_FLUSH;
+        flags |= PIPE_CONTROL_INSTRUCTION_CACHE_INVALIDATE;
+        flags |= PIPE_CONTROL_TEXTURE_CACHE_INVALIDATE;
+        flags |= PIPE_CONTROL_DEPTH_CACHE_FLUSH;
+        flags |= PIPE_CONTROL_VF_CACHE_INVALIDATE;
+        flags |= PIPE_CONTROL_CONST_CACHE_INVALIDATE;
+        flags |= PIPE_CONTROL_STATE_CACHE_INVALIDATE;
+        ret = intel_ring_begin(ring, 6);
+        if (ret)
+                return ret;
+        intel_ring_emit(ring, GFX_OP_PIPE_CONTROL(5));
+        intel_ring_emit(ring, flags);
+        intel_ring_emit(ring, scratch_addr | PIPE_CONTROL_GLOBAL_GTT);
+        intel_ring_emit(ring, 0); /* lower dword */
+        intel_ring_emit(ring, 0); /* uppwer dword */
+        intel_ring_emit(ring, MI_NOOP);
+        intel_ring_advance(ring);
+        return 0;
+}
 static void ring_write_tail(struct intel_ring_buffer *ring,
                            u32 value)
 {
@@ -206,16 +328,6 @@ static int init_ring_common(struct intel_ring_buffer *ring)
        return 0;
 }
-/*
- * 965+ support PIPE_CONTROL commands, which provide finer grained control
- * over cache flushing.
- */
-struct pipe_control {
-        struct drm_i915_gem_object *obj;
-        volatile u32 *cpu_page;
-        u32 gtt_offset;
-};
 static int
 init_pipe_control(struct intel_ring_buffer *ring)
 {
@@ -296,8 +408,7 @@ static int init_render_ring(struct intel_ring_buffer *ring)
                                   GFX_MODE_ENABLE(GFX_REPLAY_MODE));
        }
-        if (INTEL_INFO(dev)->gen >= 6) {
+        if (INTEL_INFO(dev)->gen >= 5) {
-        } else if (IS_GEN5(dev)) {
                ret = init_pipe_control(ring);
                if (ret)
                        return ret;
@@ -438,8 +549,8 @@ gen6_blt_ring_sync_to(struct intel_ring_buffer *waiter,
 #define PIPE_CONTROL_FLUSH(ring__, addr__)                                      \
 do {                                                                    \
-        intel_ring_emit(ring__, GFX_OP_PIPE_CONTROL | PIPE_CONTROL_QW_WRITE |           \
+        intel_ring_emit(ring__, GFX_OP_PIPE_CONTROL(4) | PIPE_CONTROL_QW_WRITE |                \
-                 PIPE_CONTROL_DEPTH_STALL | 2);                         \
+                 PIPE_CONTROL_DEPTH_STALL);                             \
        intel_ring_emit(ring__, (addr__) | PIPE_CONTROL_GLOBAL_GTT);                    \
        intel_ring_emit(ring__, 0);                                                     \
        intel_ring_emit(ring__, 0);                                                     \
@@ -467,8 +578,9 @@ pc_render_add_request(struct intel_ring_buffer *ring,
        if (ret)
                return ret;
-        intel_ring_emit(ring, GFX_OP_PIPE_CONTROL | PIPE_CONTROL_QW_WRITE |
+        intel_ring_emit(ring, GFX_OP_PIPE_CONTROL(4) | PIPE_CONTROL_QW_WRITE |
-                        PIPE_CONTROL_WC_FLUSH | PIPE_CONTROL_TC_FLUSH);
+                        PIPE_CONTROL_WRITE_FLUSH |
+                        PIPE_CONTROL_TEXTURE_CACHE_INVALIDATE);
        intel_ring_emit(ring, pc->gtt_offset | PIPE_CONTROL_GLOBAL_GTT);
        intel_ring_emit(ring, seqno);
        intel_ring_emit(ring, 0);
@@ -483,8 +595,9 @@ pc_render_add_request(struct intel_ring_buffer *ring,
        PIPE_CONTROL_FLUSH(ring, scratch_addr);
        scratch_addr += 128;
        PIPE_CONTROL_FLUSH(ring, scratch_addr);
-        intel_ring_emit(ring, GFX_OP_PIPE_CONTROL | PIPE_CONTROL_QW_WRITE |
+        intel_ring_emit(ring, GFX_OP_PIPE_CONTROL(4) | PIPE_CONTROL_QW_WRITE |
-                        PIPE_CONTROL_WC_FLUSH | PIPE_CONTROL_TC_FLUSH |
+                        PIPE_CONTROL_WRITE_FLUSH |
+                        PIPE_CONTROL_TEXTURE_CACHE_INVALIDATE |
                        PIPE_CONTROL_NOTIFY);
        intel_ring_emit(ring, pc->gtt_offset | PIPE_CONTROL_GLOBAL_GTT);
        intel_ring_emit(ring, seqno);
@@ -1358,6 +1471,7 @@ int intel_init_render_ring_buffer(struct drm_device *dev)
        *ring = render_ring;
        if (INTEL_INFO(dev)->gen >= 6) {
                ring->add_request = gen6_add_request;
+                ring->flush = gen6_render_ring_flush;
                ring->irq_get = gen6_render_ring_get_irq;
                ring->irq_put = gen6_render_ring_put_irq;
        } else if (IS_GEN5(dev)) {
diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c
index 731200243219..6db3b1ccb6eb 100644
--- a/drivers/gpu/drm/i915/intel_sdvo.c
+++ b/drivers/gpu/drm/i915/intel_sdvo.c
@@ -1232,8 +1232,7 @@ static bool
 intel_sdvo_multifunc_encoder(struct intel_sdvo *intel_sdvo)
 {
        /* Is there more than one type of output? */
-        int caps = intel_sdvo->caps.output_flags & 0xf;
+        return hweight16(intel_sdvo->caps.output_flags) > 1;
-        return caps & -caps;
 }
 static struct edid *
@@ -1254,7 +1253,7 @@ intel_sdvo_get_analog_edid(struct drm_connector *connector)
 }
 enum drm_connector_status
-intel_sdvo_hdmi_sink_detect(struct drm_connector *connector)
+intel_sdvo_tmds_sink_detect(struct drm_connector *connector)
 {
        struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector);
        enum drm_connector_status status;
@@ -1349,7 +1348,7 @@ intel_sdvo_detect(struct drm_connector *connector, bool force)
        if ((intel_sdvo_connector->output_flag & response) == 0)
                ret = connector_status_disconnected;
        else if (IS_TMDS(intel_sdvo_connector))
-                ret = intel_sdvo_hdmi_sink_detect(connector);
+                ret = intel_sdvo_tmds_sink_detect(connector);
        else {
                struct edid *edid;
@@ -1896,7 +1895,7 @@ intel_sdvo_select_i2c_bus(struct drm_i915_private *dev_priv,
                          struct intel_sdvo *sdvo, u32 reg)
 {
        struct sdvo_device_mapping *mapping;
-        u8 pin, speed;
+        u8 pin;
        if (IS_SDVOB(reg))
                mapping = &dev_priv->sdvo_mappings[0];
@@ -1904,18 +1903,16 @@ intel_sdvo_select_i2c_bus(struct drm_i915_private *dev_priv,
                mapping = &dev_priv->sdvo_mappings[1];
        pin = GMBUS_PORT_DPB;
-        speed = GMBUS_RATE_1MHZ >> 8;
+        if (mapping->initialized)
-        if (mapping->initialized) {
                pin = mapping->i2c_pin;
-                speed = mapping->i2c_speed;
-        }
        if (pin < GMBUS_NUM_PORTS) {
                sdvo->i2c = &dev_priv->gmbus[pin].adapter;
-                intel_gmbus_set_speed(sdvo->i2c, speed);
+                intel_gmbus_set_speed(sdvo->i2c, GMBUS_RATE_1MHZ);
                intel_gmbus_force_bit(sdvo->i2c, true);
-        } else
+        } else {
                sdvo->i2c = &dev_priv->gmbus[GMBUS_PORT_DPB].adapter;
+        }
 }
 static bool
@@ -2206,7 +2203,7 @@ intel_sdvo_output_setup(struct intel_sdvo *intel_sdvo, uint16_t flags)
                              bytes[0], bytes[1]);
                return false;
        }
-        intel_sdvo->base.crtc_mask = (1 << 0) | (1 << 1);
+        intel_sdvo->base.crtc_mask = (1 << 0) | (1 << 1) | (1 << 2);
        return true;
 }
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index c621c98c99da..1e184c12012a 100644
--- a/drivers/iommu/intel-iommu.c
+++ b/drivers/iommu/intel-iommu.c
@@ -404,6 +404,9 @@ static int dmar_forcedac;
 static int intel_iommu_strict;
 static int intel_iommu_superpage = 1;
+int intel_iommu_gfx_mapped;
+EXPORT_SYMBOL_GPL(intel_iommu_gfx_mapped);
 #define DUMMY_DEVICE_DOMAIN_INFO ((struct device_domain_info *)(-1))
 static DEFINE_SPINLOCK(device_domain_lock);
 static LIST_HEAD(device_domain_list);
@@ -3226,9 +3229,6 @@ static void __init init_no_remapping_devices(void)
                }
        }
-        if (dmar_map_gfx)
-                return;
        for_each_drhd_unit(drhd) {
                int i;
                if (drhd->ignored || drhd->include_all)
@@ -3236,18 +3236,23 @@ static void __init init_no_remapping_devices(void)
                for (i = 0; i < drhd->devices_cnt; i++)
                        if (drhd->devices[i] &&
-                                !IS_GFX_DEVICE(drhd->devices[i]))
+                            !IS_GFX_DEVICE(drhd->devices[i]))
                                break;
                if (i < drhd->devices_cnt)
                        continue;
-                /* bypass IOMMU if it is just for gfx devices */
+                /* This IOMMU has *only* gfx devices. Either bypass it or
-                drhd->ignored = 1;
+                   set the gfx_mapped flag, as appropriate */
-                for (i = 0; i < drhd->devices_cnt; i++) {
+                if (dmar_map_gfx) {
-                        if (!drhd->devices[i])
+                        intel_iommu_gfx_mapped = 1;
-                                continue;
+                } else {
-                        drhd->devices[i]->dev.archdata.iommu = DUMMY_DEVICE_DOMAIN_INFO;
+                        drhd->ignored = 1;
+                        for (i = 0; i < drhd->devices_cnt; i++) {
+                                if (!drhd->devices[i])
+                                        continue;
+                                drhd->devices[i]->dev.archdata.iommu = DUMMY_DEVICE_DOMAIN_INFO;
+                        }
                }
        }
 }
@@ -3950,7 +3955,11 @@ static void __devinit quirk_calpella_no_shadow_gtt(struct pci_dev *dev)
        if (!(ggc & GGC_MEMORY_VT_ENABLED)) {
                printk(KERN_INFO "DMAR: BIOS has allocated no shadow GTT; disabling IOMMU for graphics\n");
                dmar_map_gfx = 0;
-        }
+        } else if (dmar_map_gfx) {
+                /* we have to ensure the gfx device is idle before we flush */
+                printk(KERN_INFO "DMAR: Disabling batched IOTLB flush on Ironlake\n");
+                intel_iommu_strict = 1;
+       }
 }
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x0040, quirk_calpella_no_shadow_gtt);
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x0044, quirk_calpella_no_shadow_gtt);
diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h
index 91567bbdb027..0d2f727e96be 100644
--- a/include/drm/drm_dp_helper.h
+++ b/include/drm/drm_dp_helper.h
@@ -74,6 +74,20 @@
 #define DP_TRAINING_AUX_RD_INTERVAL         0x00e
+#define DP_PSR_SUPPORT                      0x070
+# define DP_PSR_IS_SUPPORTED                1
+#define DP_PSR_CAPS                         0x071
+# define DP_PSR_NO_TRAIN_ON_EXIT            1
+# define DP_PSR_SETUP_TIME_330              (0 << 1)
+# define DP_PSR_SETUP_TIME_275              (1 << 1)
+# define DP_PSR_SETUP_TIME_220              (2 << 1)
+# define DP_PSR_SETUP_TIME_165              (3 << 1)
+# define DP_PSR_SETUP_TIME_110              (4 << 1)
+# define DP_PSR_SETUP_TIME_55               (5 << 1)
+# define DP_PSR_SETUP_TIME_0                (6 << 1)
+# define DP_PSR_SETUP_TIME_MASK             (7 << 1)
+# define DP_PSR_SETUP_TIME_SHIFT            1
 /* link configuration */
 #define DP_LINK_BW_SET                      0x100
 # define DP_LINK_BW_1_62                    0x06
@@ -133,6 +147,18 @@
 #define DP_MAIN_LINK_CHANNEL_CODING_SET     0x108
 # define DP_SET_ANSI_8B10B                  (1 << 0)
+#define DP_PSR_EN_CFG                       0x170
+# define DP_PSR_ENABLE                      (1 << 0)
+# define DP_PSR_MAIN_LINK_ACTIVE            (1 << 1)
+# define DP_PSR_CRC_VERIFICATION            (1 << 2)
+# define DP_PSR_FRAME_CAPTURE               (1 << 3)
+#define DP_DEVICE_SERVICE_IRQ_VECTOR        0x201
+# define DP_REMOTE_CONTROL_COMMAND_PENDING  (1 << 0)
+# define DP_AUTOMATED_TEST_REQUEST          (1 << 1)
+# define DP_CP_IRQ                          (1 << 2)
+# define DP_SINK_SPECIFIC_IRQ               (1 << 6)
 #define DP_LANE0_1_STATUS                   0x202
 #define DP_LANE2_3_STATUS                   0x203
 # define DP_LANE_CR_DONE                    (1 << 0)
@@ -165,10 +191,45 @@
 # define DP_ADJUST_PRE_EMPHASIS_LANE1_MASK   0xc0
 # define DP_ADJUST_PRE_EMPHASIS_LANE1_SHIFT  6
+#define DP_TEST_REQUEST                     0x218
+# define DP_TEST_LINK_TRAINING              (1 << 0)
+# define DP_TEST_LINK_PATTERN               (1 << 1)
+# define DP_TEST_LINK_EDID_READ             (1 << 2)
+# define DP_TEST_LINK_PHY_TEST_PATTERN      (1 << 3) /* DPCD >= 1.1 */
+#define DP_TEST_LINK_RATE                   0x219
+# define DP_LINK_RATE_162                   (0x6)
+# define DP_LINK_RATE_27                    (0xa)
+#define DP_TEST_LANE_COUNT                  0x220
+#define DP_TEST_PATTERN                     0x221
+#define DP_TEST_RESPONSE                    0x260
+# define DP_TEST_ACK                        (1 << 0)
+# define DP_TEST_NAK                        (1 << 1)
+# define DP_TEST_EDID_CHECKSUM_WRITE        (1 << 2)
 #define DP_SET_POWER                        0x600
 # define DP_SET_POWER_D0                    0x1
 # define DP_SET_POWER_D3                    0x2
+#define DP_PSR_ERROR_STATUS                 0x2006
+# define DP_PSR_LINK_CRC_ERROR              (1 << 0)
+# define DP_PSR_RFB_STORAGE_ERROR           (1 << 1)
+#define DP_PSR_ESI                          0x2007
+# define DP_PSR_CAPS_CHANGE                 (1 << 0)
+#define DP_PSR_STATUS                       0x2008
+# define DP_PSR_SINK_INACTIVE               0
+# define DP_PSR_SINK_ACTIVE_SRC_SYNCED      1
+# define DP_PSR_SINK_ACTIVE_RFB             2
+# define DP_PSR_SINK_ACTIVE_SINK_SYNCED     3
+# define DP_PSR_SINK_ACTIVE_RESYNC          4
+# define DP_PSR_SINK_INTERNAL_ERROR         7
+# define DP_PSR_SINK_STATE_MASK             0x07
 #define MODE_I2C_START  1
 #define MODE_I2C_WRITE  2
 #define MODE_I2C_READ   4
diff --git a/include/drm/intel-gtt.h b/include/drm/intel-gtt.h
index 9e343c0998b4..b174620cc9b3 100644
--- a/include/drm/intel-gtt.h
+++ b/include/drm/intel-gtt.h
@@ -13,6 +13,8 @@ const struct intel_gtt {
        unsigned int gtt_mappable_entries;
        /* Whether i915 needs to use the dmar apis or not. */
        unsigned int needs_dmar : 1;
+        /* Whether we idle the gpu before mapping/unmapping */
+        unsigned int do_idle_maps : 1;
 } *intel_gtt_get(void);
 void intel_gtt_chipset_flush(void);
diff --git a/include/linux/io-mapping.h b/include/linux/io-mapping.h
index 8cdcc2a199ad..1feeb5263565 100644
--- a/include/linux/io-mapping.h
+++ b/include/linux/io-mapping.h
@@ -117,6 +117,8 @@ io_mapping_unmap(void __iomem *vaddr)
 #else
+#include <linux/uaccess.h>
 /* this struct isn't actually defined anywhere */
 struct io_mapping;
@@ -138,12 +140,14 @@ static inline void __iomem *
 io_mapping_map_atomic_wc(struct io_mapping *mapping,
                         unsigned long offset)
 {
+        pagefault_disable();
        return ((char __force __iomem *) mapping) + offset;
 }
 static inline void
 io_mapping_unmap_atomic(void __iomem *vaddr)
 {
+        pagefault_enable();
 }
 /* Non-atomic map/unmap */