1 files changed, 99 insertions, 64 deletions

diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index aa7fd82aa6eb..85f4c5de97e2 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -43,10 +43,13 @@
  * we leave them always unmasked in IMR and then control enabling them through
  * PIPESTAT alone.
  */
-#define I915_INTERRUPT_ENABLE_FIX (I915_ASLE_INTERRUPT |                 \
-                                   I915_DISPLAY_PIPE_A_EVENT_INTERRUPT | \
-                                   I915_DISPLAY_PIPE_B_EVENT_INTERRUPT | \
-                                   I915_RENDER_COMMAND_PARSER_ERROR_INTERRUPT)
+#define I915_INTERRUPT_ENABLE_FIX                       \
+        (I915_ASLE_INTERRUPT |                          \
+         I915_DISPLAY_PIPE_A_EVENT_INTERRUPT |          \
+         I915_DISPLAY_PIPE_B_EVENT_INTERRUPT |          \
+         I915_DISPLAY_PLANE_A_FLIP_PENDING_INTERRUPT |  \
+         I915_DISPLAY_PLANE_B_FLIP_PENDING_INTERRUPT |  \
+         I915_RENDER_COMMAND_PARSER_ERROR_INTERRUPT)
 
 /** Interrupts that we mask and unmask at runtime. */
 #define I915_INTERRUPT_ENABLE_VAR (I915_USER_INTERRUPT)
@@ -61,7 +64,7 @@
                                          DRM_I915_VBLANK_PIPE_B)
 
 void
-igdng_enable_graphics_irq(drm_i915_private_t *dev_priv, u32 mask)
+ironlake_enable_graphics_irq(drm_i915_private_t *dev_priv, u32 mask)
 {
         if ((dev_priv->gt_irq_mask_reg & mask) != 0) {
                 dev_priv->gt_irq_mask_reg &= ~mask;
@@ -71,7 +74,7 @@ igdng_enable_graphics_irq(drm_i915_private_t *dev_priv, u32 mask)
 }
 
 static inline void
-igdng_disable_graphics_irq(drm_i915_private_t *dev_priv, u32 mask)
+ironlake_disable_graphics_irq(drm_i915_private_t *dev_priv, u32 mask)
 {
         if ((dev_priv->gt_irq_mask_reg & mask) != mask) {
                 dev_priv->gt_irq_mask_reg |= mask;
@@ -82,7 +85,7 @@ igdng_disable_graphics_irq(drm_i915_private_t *dev_priv, u32 mask)
 
 /* For display hotplug interrupt */
 void
-igdng_enable_display_irq(drm_i915_private_t *dev_priv, u32 mask)
+ironlake_enable_display_irq(drm_i915_private_t *dev_priv, u32 mask)
 {
         if ((dev_priv->irq_mask_reg & mask) != 0) {
                 dev_priv->irq_mask_reg &= ~mask;
@@ -92,7 +95,7 @@ igdng_enable_display_irq(drm_i915_private_t *dev_priv, u32 mask)
 }
 
 static inline void
-igdng_disable_display_irq(drm_i915_private_t *dev_priv, u32 mask)
+ironlake_disable_display_irq(drm_i915_private_t *dev_priv, u32 mask)
 {
         if ((dev_priv->irq_mask_reg & mask) != mask) {
                 dev_priv->irq_mask_reg |= mask;
@@ -157,6 +160,20 @@ i915_disable_pipestat(drm_i915_private_t *dev_priv, int pipe, u32 mask)
 }
 
 /**
+ * intel_enable_asle - enable ASLE interrupt for OpRegion
+ */
+void intel_enable_asle (struct drm_device *dev)
+{
+        drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
+
+        if (IS_IRONLAKE(dev))
+                ironlake_enable_display_irq(dev_priv, DE_GSE);
+        else
+                i915_enable_pipestat(dev_priv, 1,
+                                     I915_LEGACY_BLC_EVENT_ENABLE);
+}
+
+/**
  * i915_pipe_enabled - check if a pipe is enabled
  * @dev: DRM device
  * @pipe: pipe to check
@@ -191,7 +208,8 @@ u32 i915_get_vblank_counter(struct drm_device *dev, int pipe)
         low_frame = pipe ? PIPEBFRAMEPIXEL : PIPEAFRAMEPIXEL;
 
         if (!i915_pipe_enabled(dev, pipe)) {
-                DRM_DEBUG("trying to get vblank count for disabled pipe %d\n", pipe);
+                DRM_DEBUG_DRIVER("trying to get vblank count for disabled "
+                                "pipe %d\n", pipe);
                 return 0;
         }
 
@@ -220,7 +238,8 @@ u32 gm45_get_vblank_counter(struct drm_device *dev, int pipe)
         int reg = pipe ? PIPEB_FRMCOUNT_GM45 : PIPEA_FRMCOUNT_GM45;
 
         if (!i915_pipe_enabled(dev, pipe)) {
-                DRM_DEBUG("trying to get vblank count for disabled pipe %d\n", pipe);
+                DRM_DEBUG_DRIVER("trying to get vblank count for disabled "
+                                        "pipe %d\n", pipe);
                 return 0;
         }
 
@@ -250,12 +269,12 @@ static void i915_hotplug_work_func(struct work_struct *work)
         drm_sysfs_hotplug_event(dev);
 }
 
-irqreturn_t igdng_irq_handler(struct drm_device *dev)
+irqreturn_t ironlake_irq_handler(struct drm_device *dev)
 {
         drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
         int ret = IRQ_NONE;
-        u32 de_iir, gt_iir, de_ier;
-        u32 new_de_iir, new_gt_iir;
+        u32 de_iir, gt_iir, de_ier, pch_iir;
+        u32 new_de_iir, new_gt_iir, new_pch_iir;
         struct drm_i915_master_private *master_priv;
 
         /* disable master interrupt before clearing iir  */
@@ -265,13 +284,18 @@ irqreturn_t igdng_irq_handler(struct drm_device *dev)
 
         de_iir = I915_READ(DEIIR);
         gt_iir = I915_READ(GTIIR);
+        pch_iir = I915_READ(SDEIIR);
 
         for (;;) {
-                if (de_iir == 0 && gt_iir == 0)
+                if (de_iir == 0 && gt_iir == 0 && pch_iir == 0)
                         break;
 
                 ret = IRQ_HANDLED;
 
+                /* should clear PCH hotplug event before clear CPU irq */
+                I915_WRITE(SDEIIR, pch_iir);
+                new_pch_iir = I915_READ(SDEIIR);
+
                 I915_WRITE(DEIIR, de_iir);
                 new_de_iir = I915_READ(DEIIR);
                 I915_WRITE(GTIIR, gt_iir);
@@ -291,8 +315,18 @@ irqreturn_t igdng_irq_handler(struct drm_device *dev)
                         DRM_WAKEUP(&dev_priv->irq_queue);
                 }
 
+                if (de_iir & DE_GSE)
+                        ironlake_opregion_gse_intr(dev);
+
+                /* check event from PCH */
+                if ((de_iir & DE_PCH_EVENT) &&
+                        (pch_iir & SDE_HOTPLUG_MASK)) {
+                        queue_work(dev_priv->wq, &dev_priv->hotplug_work);
+                }
+
                 de_iir = new_de_iir;
                 gt_iir = new_gt_iir;
+                pch_iir = new_pch_iir;
         }
 
         I915_WRITE(DEIER, de_ier);
@@ -317,19 +351,19 @@ static void i915_error_work_func(struct work_struct *work)
         char *reset_event[] = { "RESET=1", NULL };
         char *reset_done_event[] = { "ERROR=0", NULL };
 
-        DRM_DEBUG("generating error event\n");
+        DRM_DEBUG_DRIVER("generating error event\n");
         kobject_uevent_env(&dev->primary->kdev.kobj, KOBJ_CHANGE, error_event);
 
         if (atomic_read(&dev_priv->mm.wedged)) {
                 if (IS_I965G(dev)) {
-                        DRM_DEBUG("resetting chip\n");
+                        DRM_DEBUG_DRIVER("resetting chip\n");
                         kobject_uevent_env(&dev->primary->kdev.kobj, KOBJ_CHANGE, reset_event);
                         if (!i965_reset(dev, GDRST_RENDER)) {
                                 atomic_set(&dev_priv->mm.wedged, 0);
                                 kobject_uevent_env(&dev->primary->kdev.kobj, KOBJ_CHANGE, reset_done_event);
                         }
                 } else {
-                        printk("reboot required\n");
+                        DRM_DEBUG_DRIVER("reboot required\n");
                 }
         }
 }
@@ -355,7 +389,7 @@ static void i915_capture_error_state(struct drm_device *dev)
 
         error = kmalloc(sizeof(*error), GFP_ATOMIC);
         if (!error) {
-                DRM_DEBUG("out ot memory, not capturing error state\n");
+                DRM_DEBUG_DRIVER("out ot memory, not capturing error state\n");
                 goto out;
         }
 
@@ -512,7 +546,6 @@ static void i915_handle_error(struct drm_device *dev, bool wedged)
                 /*
                  * Wakeup waiting processes so they don't hang
                  */
-                printk("i915: Waking up sleeping processes\n");
                 DRM_WAKEUP(&dev_priv->irq_queue);
         }
 
@@ -535,8 +568,8 @@ irqreturn_t i915_driver_irq_handler(DRM_IRQ_ARGS)
 
         atomic_inc(&dev_priv->irq_received);
 
-        if (IS_IGDNG(dev))
-                return igdng_irq_handler(dev);
+        if (IS_IRONLAKE(dev))
+                return ironlake_irq_handler(dev);
 
         iir = I915_READ(IIR);
 
@@ -568,14 +601,14 @@ irqreturn_t i915_driver_irq_handler(DRM_IRQ_ARGS)
                  */
                 if (pipea_stats & 0x8000ffff) {
                         if (pipea_stats &  PIPE_FIFO_UNDERRUN_STATUS)
-                                DRM_DEBUG("pipe a underrun\n");
+                                DRM_DEBUG_DRIVER("pipe a underrun\n");
                         I915_WRITE(PIPEASTAT, pipea_stats);
                         irq_received = 1;
                 }
 
                 if (pipeb_stats & 0x8000ffff) {
                         if (pipeb_stats &  PIPE_FIFO_UNDERRUN_STATUS)
-                                DRM_DEBUG("pipe b underrun\n");
+                                DRM_DEBUG_DRIVER("pipe b underrun\n");
                         I915_WRITE(PIPEBSTAT, pipeb_stats);
                         irq_received = 1;
                 }
@@ -591,7 +624,7 @@ irqreturn_t i915_driver_irq_handler(DRM_IRQ_ARGS)
                     (iir & I915_DISPLAY_PORT_INTERRUPT)) {
                         u32 hotplug_status = I915_READ(PORT_HOTPLUG_STAT);
 
-                        DRM_DEBUG("hotplug event received, stat 0x%08x\n",
+                        DRM_DEBUG_DRIVER("hotplug event received, stat 0x%08x\n",
                                   hotplug_status);
                         if (hotplug_status & dev_priv->hotplug_supported_mask)
                                 queue_work(dev_priv->wq,
@@ -599,27 +632,6 @@ irqreturn_t i915_driver_irq_handler(DRM_IRQ_ARGS)
 
                         I915_WRITE(PORT_HOTPLUG_STAT, hotplug_status);
                         I915_READ(PORT_HOTPLUG_STAT);
-
-                        /* EOS interrupts occurs */
-                        if (IS_IGD(dev) &&
-                                (hotplug_status & CRT_EOS_INT_STATUS)) {
-                                u32 temp;
-
-                                DRM_DEBUG("EOS interrupt occurs\n");
-                                /* status is already cleared */
-                                temp = I915_READ(ADPA);
-                                temp &= ~ADPA_DAC_ENABLE;
-                                I915_WRITE(ADPA, temp);
-
-                                temp = I915_READ(PORT_HOTPLUG_EN);
-                                temp &= ~CRT_EOS_INT_EN;
-                                I915_WRITE(PORT_HOTPLUG_EN, temp);
-
-                                temp = I915_READ(PORT_HOTPLUG_STAT);
-                                if (temp & CRT_EOS_INT_STATUS)
-                                        I915_WRITE(PORT_HOTPLUG_STAT,
-                                                CRT_EOS_INT_STATUS);
-                        }
                 }
 
                 I915_WRITE(IIR, iir);
@@ -641,14 +653,22 @@ irqreturn_t i915_driver_irq_handler(DRM_IRQ_ARGS)
                         mod_timer(&dev_priv->hangcheck_timer, jiffies + DRM_I915_HANGCHECK_PERIOD);
                 }
 
+                if (iir & I915_DISPLAY_PLANE_A_FLIP_PENDING_INTERRUPT)
+                        intel_prepare_page_flip(dev, 0);
+
+                if (iir & I915_DISPLAY_PLANE_B_FLIP_PENDING_INTERRUPT)
+                        intel_prepare_page_flip(dev, 1);
+
                 if (pipea_stats & vblank_status) {
                         vblank++;
                         drm_handle_vblank(dev, 0);
+                        intel_finish_page_flip(dev, 0);
                 }
 
                 if (pipeb_stats & vblank_status) {
                         vblank++;
                         drm_handle_vblank(dev, 1);
+                        intel_finish_page_flip(dev, 1);
                 }
 
                 if ((pipeb_stats & I915_LEGACY_BLC_EVENT_STATUS) ||
@@ -684,7 +704,7 @@ static int i915_emit_irq(struct drm_device * dev)
 
         i915_kernel_lost_context(dev);
 
-        DRM_DEBUG("\n");
+        DRM_DEBUG_DRIVER("\n");
 
         dev_priv->counter++;
         if (dev_priv->counter > 0x7FFFFFFFUL)
@@ -709,8 +729,8 @@ void i915_user_irq_get(struct drm_device *dev)
 
         spin_lock_irqsave(&dev_priv->user_irq_lock, irqflags);
         if (dev->irq_enabled && (++dev_priv->user_irq_refcount == 1)) {
-                if (IS_IGDNG(dev))
-                        igdng_enable_graphics_irq(dev_priv, GT_USER_INTERRUPT);
+                if (IS_IRONLAKE(dev))
+                        ironlake_enable_graphics_irq(dev_priv, GT_USER_INTERRUPT);
                 else
                         i915_enable_irq(dev_priv, I915_USER_INTERRUPT);
         }
@@ -725,8 +745,8 @@ void i915_user_irq_put(struct drm_device *dev)
         spin_lock_irqsave(&dev_priv->user_irq_lock, irqflags);
         BUG_ON(dev->irq_enabled && dev_priv->user_irq_refcount <= 0);
         if (dev->irq_enabled && (--dev_priv->user_irq_refcount == 0)) {
-                if (IS_IGDNG(dev))
-                        igdng_disable_graphics_irq(dev_priv, GT_USER_INTERRUPT);
+                if (IS_IRONLAKE(dev))
+                        ironlake_disable_graphics_irq(dev_priv, GT_USER_INTERRUPT);
                 else
                         i915_disable_irq(dev_priv, I915_USER_INTERRUPT);
         }
@@ -749,7 +769,7 @@ static int i915_wait_irq(struct drm_device * dev, int irq_nr)
         struct drm_i915_master_private *master_priv = dev->primary->master->driver_priv;
         int ret = 0;
 
-        DRM_DEBUG("irq_nr=%d breadcrumb=%d\n", irq_nr,
+        DRM_DEBUG_DRIVER("irq_nr=%d breadcrumb=%d\n", irq_nr,
                   READ_BREADCRUMB(dev_priv));
 
         if (READ_BREADCRUMB(dev_priv) >= irq_nr) {
@@ -832,7 +852,7 @@ int i915_enable_vblank(struct drm_device *dev, int pipe)
         if (!(pipeconf & PIPEACONF_ENABLE))
                 return -EINVAL;
 
-        if (IS_IGDNG(dev))
+        if (IS_IRONLAKE(dev))
                 return 0;
 
         spin_lock_irqsave(&dev_priv->user_irq_lock, irqflags);
@@ -854,7 +874,7 @@ void i915_disable_vblank(struct drm_device *dev, int pipe)
         drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
         unsigned long irqflags;
 
-        if (IS_IGDNG(dev))
+        if (IS_IRONLAKE(dev))
                 return;
 
         spin_lock_irqsave(&dev_priv->user_irq_lock, irqflags);
@@ -868,7 +888,7 @@ void i915_enable_interrupt (struct drm_device *dev)
 {
         struct drm_i915_private *dev_priv = dev->dev_private;
 
-        if (!IS_IGDNG(dev))
+        if (!IS_IRONLAKE(dev))
                 opregion_enable_asle(dev);
         dev_priv->irq_enabled = 1;
 }
@@ -976,7 +996,7 @@ void i915_hangcheck_elapsed(unsigned long data)
 
 /* drm_dma.h hooks
 */
-static void igdng_irq_preinstall(struct drm_device *dev)
+static void ironlake_irq_preinstall(struct drm_device *dev)
 {
         drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
 
@@ -992,14 +1012,21 @@ static void igdng_irq_preinstall(struct drm_device *dev)
         I915_WRITE(GTIMR, 0xffffffff);
         I915_WRITE(GTIER, 0x0);
         (void) I915_READ(GTIER);
+
+        /* south display irq */
+        I915_WRITE(SDEIMR, 0xffffffff);
+        I915_WRITE(SDEIER, 0x0);
+        (void) I915_READ(SDEIER);
 }
 
-static int igdng_irq_postinstall(struct drm_device *dev)
+static int ironlake_irq_postinstall(struct drm_device *dev)
 {
         drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
         /* enable kind of interrupts always enabled */
-        u32 display_mask = DE_MASTER_IRQ_CONTROL /*| DE_PCH_EVENT */;
+        u32 display_mask = DE_MASTER_IRQ_CONTROL | DE_GSE | DE_PCH_EVENT;
         u32 render_mask = GT_USER_INTERRUPT;
+        u32 hotplug_mask = SDE_CRT_HOTPLUG | SDE_PORTB_HOTPLUG |
+                           SDE_PORTC_HOTPLUG | SDE_PORTD_HOTPLUG;
 
         dev_priv->irq_mask_reg = ~display_mask;
         dev_priv->de_irq_enable_reg = display_mask;
@@ -1019,6 +1046,14 @@ static int igdng_irq_postinstall(struct drm_device *dev)
         I915_WRITE(GTIER, dev_priv->gt_irq_enable_reg);
         (void) I915_READ(GTIER);
 
+        dev_priv->pch_irq_mask_reg = ~hotplug_mask;
+        dev_priv->pch_irq_enable_reg = hotplug_mask;
+
+        I915_WRITE(SDEIIR, I915_READ(SDEIIR));
+        I915_WRITE(SDEIMR, dev_priv->pch_irq_mask_reg);
+        I915_WRITE(SDEIER, dev_priv->pch_irq_enable_reg);
+        (void) I915_READ(SDEIER);
+
         return 0;
 }
 
@@ -1031,8 +1066,8 @@ void i915_driver_irq_preinstall(struct drm_device * dev)
         INIT_WORK(&dev_priv->hotplug_work, i915_hotplug_work_func);
         INIT_WORK(&dev_priv->error_work, i915_error_work_func);
 
-        if (IS_IGDNG(dev)) {
-                igdng_irq_preinstall(dev);
+        if (IS_IRONLAKE(dev)) {
+                ironlake_irq_preinstall(dev);
                 return;
         }
 
@@ -1059,8 +1094,8 @@ int i915_driver_irq_postinstall(struct drm_device *dev)
 
         dev_priv->vblank_pipe = DRM_I915_VBLANK_PIPE_A | DRM_I915_VBLANK_PIPE_B;
 
-        if (IS_IGDNG(dev))
-                return igdng_irq_postinstall(dev);
+        if (IS_IRONLAKE(dev))
+                return ironlake_irq_postinstall(dev);
 
         /* Unmask the interrupts that we always want on. */
         dev_priv->irq_mask_reg = ~I915_INTERRUPT_ENABLE_FIX;
@@ -1120,7 +1155,7 @@ int i915_driver_irq_postinstall(struct drm_device *dev)
         return 0;
 }
 
-static void igdng_irq_uninstall(struct drm_device *dev)
+static void ironlake_irq_uninstall(struct drm_device *dev)
 {
         drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
         I915_WRITE(HWSTAM, 0xffffffff);
@@ -1143,8 +1178,8 @@ void i915_driver_irq_uninstall(struct drm_device * dev)
 
         dev_priv->vblank_pipe = 0;
 
-        if (IS_IGDNG(dev)) {
-                igdng_irq_uninstall(dev);
+        if (IS_IRONLAKE(dev)) {
+                ironlake_irq_uninstall(dev);
                 return;
         }