1 files changed, 91 insertions, 22 deletions

diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index abfc27b0c2ea..5b46623d62d4 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -1583,7 +1583,7 @@ i915_gem_object_move_to_inactive(struct drm_gem_object *obj)
  *
  * Returned sequence numbers are nonzero on success.
  */
-static uint32_t
+uint32_t
 i915_add_request(struct drm_device *dev, struct drm_file *file_priv,
                  uint32_t flush_domains)
 {
@@ -1617,7 +1617,7 @@ i915_add_request(struct drm_device *dev, struct drm_file *file_priv,
         OUT_RING(MI_USER_INTERRUPT);
         ADVANCE_LP_RING();
 
-        DRM_DEBUG("%d\n", seqno);
+        DRM_DEBUG_DRIVER("%d\n", seqno);
 
         request->seqno = seqno;
         request->emitted_jiffies = jiffies;
@@ -1820,12 +1820,8 @@ i915_gem_retire_work_handler(struct work_struct *work)
         mutex_unlock(&dev->struct_mutex);
 }
 
-/**
- * Waits for a sequence number to be signaled, and cleans up the
- * request and object lists appropriately for that event.
- */
-static int
-i915_wait_request(struct drm_device *dev, uint32_t seqno)
+int
+i915_do_wait_request(struct drm_device *dev, uint32_t seqno, int interruptible)
 {
         drm_i915_private_t *dev_priv = dev->dev_private;
         u32 ier;
@@ -1837,7 +1833,7 @@ i915_wait_request(struct drm_device *dev, uint32_t seqno)
                 return -EIO;
 
         if (!i915_seqno_passed(i915_get_gem_seqno(dev), seqno)) {
-                if (IS_IGDNG(dev))
+                if (IS_IRONLAKE(dev))
                         ier = I915_READ(DEIER) | I915_READ(GTIER);
                 else
                         ier = I915_READ(IER);
@@ -1852,10 +1848,15 @@ i915_wait_request(struct drm_device *dev, uint32_t seqno)
 
                 dev_priv->mm.waiting_gem_seqno = seqno;
                 i915_user_irq_get(dev);
-                ret = wait_event_interruptible(dev_priv->irq_queue,
-                                               i915_seqno_passed(i915_get_gem_seqno(dev),
-                                                                 seqno) ||
-                                               atomic_read(&dev_priv->mm.wedged));
+                if (interruptible)
+                        ret = wait_event_interruptible(dev_priv->irq_queue,
+                                i915_seqno_passed(i915_get_gem_seqno(dev), seqno) ||
+                                atomic_read(&dev_priv->mm.wedged));
+                else
+                        wait_event(dev_priv->irq_queue,
+                                i915_seqno_passed(i915_get_gem_seqno(dev), seqno) ||
+                                atomic_read(&dev_priv->mm.wedged));
+
                 i915_user_irq_put(dev);
                 dev_priv->mm.waiting_gem_seqno = 0;
 
@@ -1879,6 +1880,16 @@ i915_wait_request(struct drm_device *dev, uint32_t seqno)
         return ret;
 }
 
+/**
+ * Waits for a sequence number to be signaled, and cleans up the
+ * request and object lists appropriately for that event.
+ */
+static int
+i915_wait_request(struct drm_device *dev, uint32_t seqno)
+{
+        return i915_do_wait_request(dev, seqno, 1);
+}
+
 static void
 i915_gem_flush(struct drm_device *dev,
                uint32_t invalidate_domains,
@@ -1947,7 +1958,7 @@ i915_gem_flush(struct drm_device *dev,
 #endif
                 BEGIN_LP_RING(2);
                 OUT_RING(cmd);
-                OUT_RING(0); /* noop */
+                OUT_RING(MI_NOOP);
                 ADVANCE_LP_RING();
         }
 }
@@ -2760,6 +2771,22 @@ i915_gem_object_flush_cpu_write_domain(struct drm_gem_object *obj)
                                             old_write_domain);
 }
 
+void
+i915_gem_object_flush_write_domain(struct drm_gem_object *obj)
+{
+        switch (obj->write_domain) {
+        case I915_GEM_DOMAIN_GTT:
+                i915_gem_object_flush_gtt_write_domain(obj);
+                break;
+        case I915_GEM_DOMAIN_CPU:
+                i915_gem_object_flush_cpu_write_domain(obj);
+                break;
+        default:
+                i915_gem_object_flush_gpu_write_domain(obj);
+                break;
+        }
+}
+
 /**
  * Moves a single object to the GTT read, and possibly write domain.
  *
@@ -3525,6 +3552,41 @@ i915_gem_check_execbuffer (struct drm_i915_gem_execbuffer *exec,
         return 0;
 }
 
+static int
+i915_gem_wait_for_pending_flip(struct drm_device *dev,
+                               struct drm_gem_object **object_list,
+                               int count)
+{
+        drm_i915_private_t *dev_priv = dev->dev_private;
+        struct drm_i915_gem_object *obj_priv;
+        DEFINE_WAIT(wait);
+        int i, ret = 0;
+
+        for (;;) {
+                prepare_to_wait(&dev_priv->pending_flip_queue,
+                                &wait, TASK_INTERRUPTIBLE);
+                for (i = 0; i < count; i++) {
+                        obj_priv = object_list[i]->driver_private;
+                        if (atomic_read(&obj_priv->pending_flip) > 0)
+                                break;
+                }
+                if (i == count)
+                        break;
+
+                if (!signal_pending(current)) {
+                        mutex_unlock(&dev->struct_mutex);
+                        schedule();
+                        mutex_lock(&dev->struct_mutex);
+                        continue;
+                }
+                ret = -ERESTARTSYS;
+                break;
+        }
+        finish_wait(&dev_priv->pending_flip_queue, &wait);
+
+        return ret;
+}
+
 int
 i915_gem_execbuffer(struct drm_device *dev, void *data,
                     struct drm_file *file_priv)
@@ -3540,7 +3602,7 @@ i915_gem_execbuffer(struct drm_device *dev, void *data,
         int ret, ret2, i, pinned = 0;
         uint64_t exec_offset;
         uint32_t seqno, flush_domains, reloc_index;
-        int pin_tries;
+        int pin_tries, flips;
 
 #if WATCH_EXEC
         DRM_INFO("buffers_ptr %d buffer_count %d len %08x\n",
@@ -3552,8 +3614,8 @@ i915_gem_execbuffer(struct drm_device *dev, void *data,
                 return -EINVAL;
         }
         /* Copy in the exec list from userland */
-        exec_list = drm_calloc_large(sizeof(*exec_list), args->buffer_count);
-        object_list = drm_calloc_large(sizeof(*object_list), args->buffer_count);
+        exec_list = drm_malloc_ab(sizeof(*exec_list), args->buffer_count);
+        object_list = drm_malloc_ab(sizeof(*object_list), args->buffer_count);
         if (exec_list == NULL || object_list == NULL) {
                 DRM_ERROR("Failed to allocate exec or object list "
                           "for %d buffers\n",
@@ -3598,20 +3660,19 @@ i915_gem_execbuffer(struct drm_device *dev, void *data,
         i915_verify_inactive(dev, __FILE__, __LINE__);
 
         if (atomic_read(&dev_priv->mm.wedged)) {
-                DRM_ERROR("Execbuf while wedged\n");
                 mutex_unlock(&dev->struct_mutex);
                 ret = -EIO;
                 goto pre_mutex_err;
         }
 
         if (dev_priv->mm.suspended) {
-                DRM_ERROR("Execbuf while VT-switched.\n");
                 mutex_unlock(&dev->struct_mutex);
                 ret = -EBUSY;
                 goto pre_mutex_err;
         }
 
         /* Look up object handles */
+        flips = 0;
         for (i = 0; i < args->buffer_count; i++) {
                 object_list[i] = drm_gem_object_lookup(dev, file_priv,
                                                        exec_list[i].handle);
@@ -3630,6 +3691,14 @@ i915_gem_execbuffer(struct drm_device *dev, void *data,
                         goto err;
                 }
                 obj_priv->in_execbuffer = true;
+                flips += atomic_read(&obj_priv->pending_flip);
+        }
+
+        if (flips > 0) {
+                ret = i915_gem_wait_for_pending_flip(dev, object_list,
+                                                     args->buffer_count);
+                if (ret)
+                        goto err;
         }
 
         /* Pin and relocate */
@@ -4356,7 +4425,7 @@ i915_gem_init_hws(struct drm_device *dev)
         memset(dev_priv->hw_status_page, 0, PAGE_SIZE);
         I915_WRITE(HWS_PGA, dev_priv->status_gfx_addr);
         I915_READ(HWS_PGA); /* posting read */
-        DRM_DEBUG("hws offset: 0x%08x\n", dev_priv->status_gfx_addr);
+        DRM_DEBUG_DRIVER("hws offset: 0x%08x\n", dev_priv->status_gfx_addr);
 
         return 0;
 }
@@ -4614,8 +4683,8 @@ i915_gem_load(struct drm_device *dev)
                         for (i = 0; i < 8; i++)
                                 I915_WRITE(FENCE_REG_945_8 + (i * 4), 0);
         }
-
         i915_gem_detect_bit_6_swizzle(dev);
+        init_waitqueue_head(&dev_priv->pending_flip_queue);
 }
 
 /*
@@ -4790,7 +4859,7 @@ i915_gem_phys_pwrite(struct drm_device *dev, struct drm_gem_object *obj,
         user_data = (char __user *) (uintptr_t) args->data_ptr;
         obj_addr = obj_priv->phys_obj->handle->vaddr + args->offset;
 
-        DRM_DEBUG("obj_addr %p, %lld\n", obj_addr, args->size);
+        DRM_DEBUG_DRIVER("obj_addr %p, %lld\n", obj_addr, args->size);
         ret = copy_from_user(obj_addr, user_data, args->size);
         if (ret)
                 return -EFAULT;