- patches.suse/slab-handle-memoryless-nodes-v2a.patch: Refresh.
[linux-flexiantxendom0-3.2.10.git] / drivers / gpu / drm / i915 / i915_irq.c
index 7e056d8..89a071a 100644 (file)
  * 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;
@@ -163,8 +166,8 @@ void intel_enable_asle (struct drm_device *dev)
 {
        drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
 
-       if (IS_IGDNG(dev))
-               igdng_enable_display_irq(dev_priv, DE_GSE);
+       if (IS_IRONLAKE(dev))
+               ironlake_enable_display_irq(dev_priv, DE_GSE);
        else
                i915_enable_pipestat(dev_priv, 1,
                                     I915_LEGACY_BLC_EVENT_ENABLE);
@@ -205,7 +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;
        }
 
@@ -234,7 +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;
        }
 
@@ -264,11 +269,11 @@ 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 de_iir, gt_iir, de_ier, pch_iir;
        struct drm_i915_master_private *master_priv;
 
        /* disable master interrupt before clearing iir  */
@@ -278,8 +283,9 @@ irqreturn_t igdng_irq_handler(struct drm_device *dev)
 
        de_iir = I915_READ(DEIIR);
        gt_iir = I915_READ(GTIIR);
+       pch_iir = I915_READ(SDEIIR);
 
-       if (de_iir == 0 && gt_iir == 0)
+       if (de_iir == 0 && gt_iir == 0 && pch_iir == 0)
                goto done;
 
        ret = IRQ_HANDLED;
@@ -296,11 +302,21 @@ irqreturn_t igdng_irq_handler(struct drm_device *dev)
                dev_priv->mm.irq_gem_seqno = seqno;
                trace_i915_gem_request_complete(dev, seqno);
                DRM_WAKEUP(&dev_priv->irq_queue);
+               dev_priv->hangcheck_count = 0;
+               mod_timer(&dev_priv->hangcheck_timer, jiffies + DRM_I915_HANGCHECK_PERIOD);
        }
 
        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);
+       }
+
+       /* should clear PCH hotplug event before clear CPU irq */
+       I915_WRITE(SDEIIR, pch_iir);
        I915_WRITE(GTIIR, gt_iir);
        I915_WRITE(DEIIR, de_iir);
 
@@ -327,19 +343,19 @@ 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");
                }
        }
 }
@@ -365,7 +381,7 @@ 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;
        }
 
@@ -522,7 +538,6 @@ 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);
        }
 
@@ -545,8 +560,8 @@ 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);
 
@@ -578,14 +593,14 @@ 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;
                }
@@ -601,7 +616,7 @@ 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,
@@ -609,27 +624,6 @@ 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);
@@ -651,14 +645,22 @@ 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) ||
@@ -694,7 +696,7 @@ 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)
@@ -719,8 +721,8 @@ 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);
        }
@@ -735,8 +737,8 @@ 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);
        }
@@ -759,7 +761,7 @@ 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) {
@@ -842,7 +844,7 @@ 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);
@@ -864,7 +866,7 @@ 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);
@@ -878,7 +880,7 @@ 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;
 }
@@ -986,7 +988,7 @@ 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;
 
@@ -1002,14 +1004,21 @@ 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_GSE /*| 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;
@@ -1029,6 +1038,14 @@ 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;
 }
 
@@ -1041,8 +1058,8 @@ 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;
        }
 
@@ -1059,6 +1076,10 @@ void i915_driver_irq_preinstall(struct drm_device * dev)
        (void) I915_READ(IER);
 }
 
+/*
+ * Must be called after intel_modeset_init or hotplug interrupts won't be
+ * enabled correctly.
+ */
 int i915_driver_irq_postinstall(struct drm_device *dev)
 {
        drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
@@ -1069,8 +1090,8 @@ 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;
@@ -1081,19 +1102,23 @@ int i915_driver_irq_postinstall(struct drm_device *dev)
        if (I915_HAS_HOTPLUG(dev)) {
                u32 hotplug_en = I915_READ(PORT_HOTPLUG_EN);
 
-               /* Leave other bits alone */
-               hotplug_en |= HOTPLUG_EN_MASK;
+               /* Note HDMI and DP share bits */
+               if (dev_priv->hotplug_supported_mask & HDMIB_HOTPLUG_INT_STATUS)
+                       hotplug_en |= HDMIB_HOTPLUG_INT_EN;
+               if (dev_priv->hotplug_supported_mask & HDMIC_HOTPLUG_INT_STATUS)
+                       hotplug_en |= HDMIC_HOTPLUG_INT_EN;
+               if (dev_priv->hotplug_supported_mask & HDMID_HOTPLUG_INT_STATUS)
+                       hotplug_en |= HDMID_HOTPLUG_INT_EN;
+               if (dev_priv->hotplug_supported_mask & SDVOC_HOTPLUG_INT_STATUS)
+                       hotplug_en |= SDVOC_HOTPLUG_INT_EN;
+               if (dev_priv->hotplug_supported_mask & SDVOB_HOTPLUG_INT_STATUS)
+                       hotplug_en |= SDVOB_HOTPLUG_INT_EN;
+               if (dev_priv->hotplug_supported_mask & CRT_HOTPLUG_INT_STATUS)
+                       hotplug_en |= CRT_HOTPLUG_INT_EN;
+               /* Ignore TV since it's buggy */
+
                I915_WRITE(PORT_HOTPLUG_EN, hotplug_en);
 
-               dev_priv->hotplug_supported_mask = CRT_HOTPLUG_INT_STATUS |
-                       TV_HOTPLUG_INT_STATUS | SDVOC_HOTPLUG_INT_STATUS |
-                       SDVOB_HOTPLUG_INT_STATUS;
-               if (IS_G4X(dev)) {
-                       dev_priv->hotplug_supported_mask |=
-                               HDMIB_HOTPLUG_INT_STATUS |
-                               HDMIC_HOTPLUG_INT_STATUS |
-                               HDMID_HOTPLUG_INT_STATUS;
-               }
                /* Enable in IER... */
                enable_mask |= I915_DISPLAY_PORT_INTERRUPT;
                /* and unmask in IMR */
@@ -1130,7 +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);
@@ -1153,8 +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;
        }