Merge branch 'drm-patches' of master.kernel.org:/pub/scm/linux/kernel/git/airlied/drm-2.6

* 'drm-patches' of master.kernel.org:/pub/scm/linux/kernel/git/airlied/drm-2.6:
  drm/i915: Add 965GM pci id update
  drm: just use io_remap_pfn_range on all archs..
  drm: fix DRM_CONSISTENT mapping
  drm: fix up mmap locking in preparation for ttm changes
  drm: fix driver deadlock with AIGLX and reclaim_buffers_locked
  drm: fix warning in drm_fops.c
  drm: allow for more generic drm ioctls
  drm: fix alpha domain handling
  via: fix CX700 pci id
  drm: make drm_io_prot static.
  drm: remove via_mm.h
  drm: add missing NULL assignment
  drm/radeon: Fix u32 overflows when determining AGP base address in card space.
  drm: port over use_vmalloc code from git hashtab
  drm: fix crash with fops lock and fixup sarea/page size locking
  drm: bring bufs code from git tree.
  drm: move protection stuff into separate function
  drm: Use ARRAY_SIZE macro when appropriate
  drm: update README.drm (bugzilla #7933)
  drm: remove unused exports

20 files changed, 349 insertions, 196 deletions

diff --git a/drivers/char/drm/README.drm b/drivers/char/drm/README.drm
index 6441e01e58..af74cd79a2 100644
--- a/drivers/char/drm/README.drm
+++ b/drivers/char/drm/README.drm
@@ -1,6 +1,6 @@
 ************************************************************
 * For the very latest on DRI development, please see:      *
-*     http://dri.sourceforge.net/                          *
+*     http://dri.freedesktop.org/                          *
 ************************************************************
 
 The Direct Rendering Manager (drm) is a device-independent kernel-level
@@ -26,21 +26,19 @@ ways:
 
 
 Documentation on the DRI is available from:
-    http://precisioninsight.com/piinsights.html
+    http://dri.freedesktop.org/wiki/Documentation
+    http://sourceforge.net/project/showfiles.php?group_id=387
+    http://dri.sourceforge.net/doc/
 
 For specific information about kernel-level support, see:
 
     The Direct Rendering Manager, Kernel Support for the Direct Rendering
     Infrastructure
-    http://precisioninsight.com/dr/drm.html
+    http://dri.sourceforge.net/doc/drm_low_level.html
 
     Hardware Locking for the Direct Rendering Infrastructure
-    http://precisioninsight.com/dr/locking.html
+    http://dri.sourceforge.net/doc/hardware_locking_low_level.html
 
     A Security Analysis of the Direct Rendering Infrastructure
-    http://precisioninsight.com/dr/security.html
+    http://dri.sourceforge.net/doc/security_low_level.html
 
-************************************************************
-* For the very latest on DRI development, please see:      *
-*     http://dri.sourceforge.net/                          *
-************************************************************
diff --git a/drivers/char/drm/drm.h b/drivers/char/drm/drm.h
index 8db9041e30..089198491f 100644
--- a/drivers/char/drm/drm.h
+++ b/drivers/char/drm/drm.h
@@ -654,11 +654,13 @@ typedef struct drm_set_version {
 
 /**
  * Device specific ioctls should only be in their respective headers
- * The device specific ioctl range is from 0x40 to 0x79.
+ * The device specific ioctl range is from 0x40 to 0x99.
+ * Generic IOCTLS restart at 0xA0.
  *
  * \sa drmCommandNone(), drmCommandRead(), drmCommandWrite(), and
  * drmCommandReadWrite().
  */
 #define DRM_COMMAND_BASE                0x40
+#define DRM_COMMAND_END                 0xA0
 
 #endif
diff --git a/drivers/char/drm/drmP.h b/drivers/char/drm/drmP.h
index 85d99e21e1..80041d5b79 100644
--- a/drivers/char/drm/drmP.h
+++ b/drivers/char/drm/drmP.h
@@ -414,6 +414,10 @@ typedef struct drm_lock_data {
         struct file *filp;              /**< File descr of lock holder (0=kernel) */
         wait_queue_head_t lock_queue;   /**< Queue of blocked processes */
         unsigned long lock_time;        /**< Time of last lock in jiffies */
+        spinlock_t spinlock;
+        uint32_t kernel_waiters;
+        uint32_t user_waiters;
+        int idle_has_lock;
 } drm_lock_data_t;
 
 /**
@@ -590,6 +594,8 @@ struct drm_driver {
         void (*reclaim_buffers) (struct drm_device * dev, struct file * filp);
         void (*reclaim_buffers_locked) (struct drm_device *dev,
                                         struct file *filp);
+        void (*reclaim_buffers_idlelocked) (struct drm_device *dev,
+                                        struct file * filp);
         unsigned long (*get_map_ofs) (drm_map_t * map);
         unsigned long (*get_reg_ofs) (struct drm_device * dev);
         void (*set_version) (struct drm_device * dev, drm_set_version_t * sv);
@@ -764,7 +770,7 @@ static __inline__ int drm_core_check_feature(struct drm_device *dev,
 }
 
 #ifdef __alpha__
-#define drm_get_pci_domain(dev) dev->hose->bus->number
+#define drm_get_pci_domain(dev) dev->hose->index
 #else
 #define drm_get_pci_domain(dev) 0
 #endif
@@ -915,9 +921,18 @@ extern int drm_lock(struct inode *inode, struct file *filp,
                     unsigned int cmd, unsigned long arg);
 extern int drm_unlock(struct inode *inode, struct file *filp,
                       unsigned int cmd, unsigned long arg);
-extern int drm_lock_take(__volatile__ unsigned int *lock, unsigned int context);
-extern int drm_lock_free(drm_device_t * dev,
-                         __volatile__ unsigned int *lock, unsigned int context);
+extern int drm_lock_take(drm_lock_data_t *lock_data, unsigned int context);
+extern int drm_lock_free(drm_lock_data_t *lock_data, unsigned int context);
+extern void drm_idlelock_take(drm_lock_data_t *lock_data);
+extern void drm_idlelock_release(drm_lock_data_t *lock_data);
+
+/*
+ * These are exported to drivers so that they can implement fencing using
+ * DMA quiscent + idle. DMA quiescent usually requires the hardware lock.
+ */
+
+extern int drm_i_have_hw_lock(struct file *filp);
+extern int drm_kernel_take_hw_lock(struct file *filp);
 
                                 /* Buffer management support (drm_bufs.h) */
 extern int drm_addbufs_agp(drm_device_t * dev, drm_buf_desc_t * request);
diff --git a/drivers/char/drm/drm_bufs.c b/drivers/char/drm/drm_bufs.c
index a6828cc14e..c11345856f 100644
--- a/drivers/char/drm/drm_bufs.c
+++ b/drivers/char/drm/drm_bufs.c
@@ -57,7 +57,8 @@ static drm_map_list_t *drm_find_matching_map(drm_device_t *dev,
         list_for_each(list, &dev->maplist->head) {
                 drm_map_list_t *entry = list_entry(list, drm_map_list_t, head);
                 if (entry->map && map->type == entry->map->type &&
-                    entry->map->offset == map->offset) {
+                    ((entry->map->offset == map->offset) ||
+                     (map->type == _DRM_SHM && map->flags==_DRM_CONTAINS_LOCK))) {
                         return entry;
                 }
         }
@@ -180,8 +181,20 @@ static int drm_addmap_core(drm_device_t * dev, unsigned int offset,
                 if (map->type == _DRM_REGISTERS)
                         map->handle = ioremap(map->offset, map->size);
                 break;
-
         case _DRM_SHM:
+                list = drm_find_matching_map(dev, map);
+                if (list != NULL) {
+                        if(list->map->size != map->size) {
+                                DRM_DEBUG("Matching maps of type %d with "
+                                          "mismatched sizes, (%ld vs %ld)\n",
+                                          map->type, map->size, list->map->size);
+                                list->map->size = map->size;
+                        }
+
+                        drm_free(map, sizeof(*map), DRM_MEM_MAPS);
+                        *maplist = list;
+                        return 0;
+                }
                 map->handle = vmalloc_user(map->size);
                 DRM_DEBUG("%lu %d %p\n",
                           map->size, drm_order(map->size), map->handle);
@@ -200,15 +213,45 @@ static int drm_addmap_core(drm_device_t * dev, unsigned int offset,
                         dev->sigdata.lock = dev->lock.hw_lock = map->handle;    /* Pointer to lock */
                 }