Merge branch 'vmwgfx-fixes-3.13' of git://people.freedesktop.org/~thomash/linux into drm-fixes

Below is a fix for a false lockep warning,
and the vmwgfx prime implementation.

* 'vmwgfx-fixes-3.13' of git://people.freedesktop.org/~thomash/linux:
  drm/vmwgfx: Make vmwgfx dma buffers prime aware
  drm/vmwgfx: Make surfaces prime-aware
  drm/vmwgfx: Hook up the prime ioctls
  drm/ttm: Add a minimal prime implementation for ttm base objects
  drm/vmwgfx: Fix false lockdep warning
  drm/ttm: Allow execbuf util reserves without ticket

10 files changed, 533 insertions, 70 deletions

diff --git a/drivers/gpu/drm/ttm/ttm_execbuf_util.c b/drivers/gpu/drm/ttm/ttm_execbuf_util.c
index 6c911789ae5c..479e9418e3d7 100644
--- a/drivers/gpu/drm/ttm/ttm_execbuf_util.c
+++ b/drivers/gpu/drm/ttm/ttm_execbuf_util.c
@@ -32,8 +32,7 @@
 #include <linux/sched.h>
 #include <linux/module.h>
 
-static void ttm_eu_backoff_reservation_locked(struct list_head *list,
-                                              struct ww_acquire_ctx *ticket)
+static void ttm_eu_backoff_reservation_locked(struct list_head *list)
 {
         struct ttm_validate_buffer *entry;
 
@@ -93,8 +92,9 @@ void ttm_eu_backoff_reservation(struct ww_acquire_ctx *ticket,
         entry = list_first_entry(list, struct ttm_validate_buffer, head);
         glob = entry->bo->glob;
         spin_lock(&glob->lru_lock);
-        ttm_eu_backoff_reservation_locked(list, ticket);
-        ww_acquire_fini(ticket);
+        ttm_eu_backoff_reservation_locked(list);
+        if (ticket)
+                ww_acquire_fini(ticket);
         spin_unlock(&glob->lru_lock);
 }
 EXPORT_SYMBOL(ttm_eu_backoff_reservation);
@@ -130,7 +130,8 @@ int ttm_eu_reserve_buffers(struct ww_acquire_ctx *ticket,
         entry = list_first_entry(list, struct ttm_validate_buffer, head);
         glob = entry->bo->glob;
 
-        ww_acquire_init(ticket, &reservation_ww_class);
+        if (ticket)
+                ww_acquire_init(ticket, &reservation_ww_class);
 retry:
         list_for_each_entry(entry, list, head) {
                 struct ttm_buffer_object *bo = entry->bo;
@@ -139,16 +140,17 @@ retry:
                 if (entry->reserved)
                         continue;
 
-
-                ret = ttm_bo_reserve_nolru(bo, true, false, true, ticket);
+                ret = ttm_bo_reserve_nolru(bo, true, (ticket == NULL), true,
+                                           ticket);
 
                 if (ret == -EDEADLK) {
                         /* uh oh, we lost out, drop every reservation and try
                          * to only reserve this buffer, then start over if
                          * this succeeds.
                          */
+                        BUG_ON(ticket == NULL);
                         spin_lock(&glob->lru_lock);
-                        ttm_eu_backoff_reservation_locked(list, ticket);
+                        ttm_eu_backoff_reservation_locked(list);
                         spin_unlock(&glob->lru_lock);
                         ttm_eu_list_ref_sub(list);
                         ret = ww_mutex_lock_slow_interruptible(&bo->resv->lock,
@@ -175,7 +177,8 @@ retry:
                 }
         }
 
-        ww_acquire_done(ticket);
+        if (ticket)
+                ww_acquire_done(ticket);
         spin_lock(&glob->lru_lock);
         ttm_eu_del_from_lru_locked(list);
         spin_unlock(&glob->lru_lock);
@@ -184,12 +187,14 @@ retry:
 
 err:
         spin_lock(&glob->lru_lock);
-        ttm_eu_backoff_reservation_locked(list, ticket);
+        ttm_eu_backoff_reservation_locked(list);
         spin_unlock(&glob->lru_lock);
         ttm_eu_list_ref_sub(list);
 err_fini:
-        ww_acquire_done(ticket);
-        ww_acquire_fini(ticket);
+        if (ticket) {
+                ww_acquire_done(ticket);
+                ww_acquire_fini(ticket);
+        }
         return ret;
 }
 EXPORT_SYMBOL(ttm_eu_reserve_buffers);
@@ -224,7 +229,8 @@ void ttm_eu_fence_buffer_objects(struct ww_acquire_ctx *ticket,
         }
         spin_unlock(&bdev->fence_lock);
         spin_unlock(&glob->lru_lock);
-        ww_acquire_fini(ticket);
+        if (ticket)
+                ww_acquire_fini(ticket);
 
         list_for_each_entry(entry, list, head) {
                 if (entry->old_sync_obj)
diff --git a/drivers/gpu/drm/ttm/ttm_object.c b/drivers/gpu/drm/ttm/ttm_object.c
index a868176c258a..6fe7b92a82d1 100644
--- a/drivers/gpu/drm/ttm/ttm_object.c
+++ b/drivers/gpu/drm/ttm/ttm_object.c
@@ -1,6 +1,6 @@
 /**************************************************************************
  *
- * Copyright (c) 2009 VMware, Inc., Palo Alto, CA., USA
+ * Copyright (c) 2009-2013 VMware, Inc., Palo Alto, CA., USA
  * All Rights Reserved.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
@@ -26,6 +26,12 @@
  **************************************************************************/
 /*
  * Authors: Thomas Hellstrom <thellstrom-at-vmware-dot-com>
+ *
+ * While no substantial code is shared, the prime code is inspired by
+ * drm_prime.c, with
+ * Authors:
+ *      Dave Airlie <airlied@redhat.com>
+ *      Rob Clark <rob.clark@linaro.org>
  */
 /** @file ttm_ref_object.c
  *
@@ -34,6 +40,7 @@
  * and release on file close.
  */
 
+
 /**
  * struct ttm_object_file
  *
@@ -84,6 +91,9 @@ struct ttm_object_device {
         struct drm_open_hash object_hash;
         atomic_t object_count;
         struct ttm_mem_global *mem_glob;
+        struct dma_buf_ops ops;
+        void (*dmabuf_release)(struct dma_buf *dma_buf);
+        size_t dma_buf_size;
 };
 
 /**
@@ -116,6 +126,8 @@ struct ttm_ref_object {
         struct ttm_object_file *tfile;
 };
 
+static void ttm_prime_dmabuf_release(struct dma_buf *dma_buf);
+
 static inline struct ttm_object_file *