[intel] intel_bufmgr_ttm style sanity

1 files changed, 343 insertions, 308 deletions

diff --git a/src/mesa/drivers/dri/intel/intel_bufmgr_ttm.c b/src/mesa/drivers/dri/intel/intel_bufmgr_ttm.c
index 32d98860916..8cd3374c5de 100644
--- a/src/mesa/drivers/dri/intel/intel_bufmgr_ttm.c
+++ b/src/mesa/drivers/dri/intel/intel_bufmgr_ttm.c
@@ -1,10 +1,10 @@
 /**************************************************************************
- * 
+ *
  * Copyright � 2007 Red Hat Inc.
  * Copyright � 2007 Intel Corporation
  * Copyright 2006 Tungsten Graphics, Inc., Bismarck, ND., USA
  * All Rights Reserved.
- * 
+ *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the
  * "Software"), to deal in the Software without restriction, including
@@ -12,20 +12,20 @@
  * distribute, sub license, and/or sell copies of the Software, and to
  * permit persons to whom the Software is furnished to do so, subject to
  * the following conditions:
- * 
+ *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
- * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR 
- * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE 
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  * USE OR OTHER DEALINGS IN THE SOFTWARE.
  *
  * The above copyright notice and this permission notice (including the
  * next paragraph) shall be included in all copies or substantial portions
  * of the Software.
- * 
- * 
+ *
+ *
  **************************************************************************/
 /*
  * Authors: Thomas Hellstr�m <thomas-at-tungstengraphics-dot-com>
@@ -52,11 +52,11 @@
 
 struct intel_reloc_info
 {
-   GLuint type;
-   GLuint reloc;
-   GLuint delta;                /* not needed? */
-   GLuint index;
-   drm_handle_t handle;
+    GLuint type;
+    GLuint reloc;
+    GLuint delta;                /* not needed? */
+    GLuint index;
+    drm_handle_t handle;
 };
 
 struct intel_bo_node
@@ -92,39 +92,40 @@ struct intel_bo_list {
 };
 
 typedef struct _dri_bufmgr_ttm {
-   dri_bufmgr bufmgr;
+    dri_bufmgr bufmgr;
 
-   int fd;
-   _glthread_Mutex mutex;
-   unsigned int fence_type;
-   unsigned int fence_type_flush;
+    int fd;
+    _glthread_Mutex mutex;
+    unsigned int fence_type;
+    unsigned int fence_type_flush;
 
-   uint32_t max_relocs;
-   /** ttm relocation list */
-   struct intel_bo_list list;
-   struct intel_bo_list reloc_list;
+    uint32_t max_relocs;
+    /** ttm relocation list */
+    struct intel_bo_list list;
+    struct intel_bo_list reloc_list;
 
 } dri_bufmgr_ttm;
 
 typedef struct _dri_bo_ttm {
-   dri_bo bo;
+    dri_bo bo;
 
-   int refcount;		/* Protected by bufmgr->mutex */
-   drmBO drm_bo;
-   const char *name;
+    int refcount;		/* Protected by bufmgr->mutex */
+    drmBO drm_bo;
+    const char *name;
 } dri_bo_ttm;
 
 typedef struct _dri_fence_ttm
 {
-   dri_fence fence;
+    dri_fence fence;
 
-   int refcount;		/* Protected by bufmgr->mutex */
-   const char *name;
-   drmFence drm_fence;
+    int refcount;		/* Protected by bufmgr->mutex */
+    const char *name;
+    drmFence drm_fence;
 } dri_fence_ttm;
 
 
-static void intel_bo_free_list(struct intel_bo_list *list)
+static void
+intel_bo_free_list(struct intel_bo_list *list)
 {
     struct intel_bo_node *node;
     drmMMListHead *l;
@@ -139,12 +140,15 @@ static void intel_bo_free_list(struct intel_bo_list *list)
     }
 }
 
-static void generic_destroy(void *nodep)
+static void
+generic_destroy(void *nodep)
 {
     free(nodep);
 }
 
-static int intel_create_bo_list(int numTarget, struct intel_bo_list *list, void (*destroy)(void *))
+static int
+intel_create_bo_list(int numTarget, struct intel_bo_list *list,
+		     void (*destroy)(void *))
 {
     DRMINITLISTHEAD(&list->list);
     list->numCurrent = 0;
@@ -157,7 +161,8 @@ static int intel_create_bo_list(int numTarget, struct intel_bo_list *list, void
 
 
 static struct drm_i915_op_arg *
-intel_setup_validate_list(int fd, struct intel_bo_list *list, struct intel_bo_list *reloc_list, GLuint *count_p)
+intel_setup_validate_list(int fd, struct intel_bo_list *list,
+			  struct intel_bo_list *reloc_list, GLuint *count_p)
 {
     struct intel_bo_node *node;
     struct intel_bo_reloc_node *rl_node;
@@ -191,7 +196,9 @@ intel_setup_validate_list(int fd, struct intel_bo_list *list, struct intel_bo_li
 	req->bo_req.fence_class = 0; /* Backwards compat. */
 	arg->reloc_handle = 0;
 
-	for (rl = reloc_list->list.next; rl != &reloc_list->list; rl = rl->next) {
+	for (rl = reloc_list->list.next; rl != &reloc_list->list;
+	     rl = rl->next)
+	{
 	    rl_node = DRMLISTENTRY(struct intel_bo_reloc_node, rl, head);
 
 	    if (rl_node->handle == node->buf->handle) {
@@ -208,13 +215,14 @@ intel_setup_validate_list(int fd, struct intel_bo_list *list, struct intel_bo_li
     return first;
 }
 
-static void intel_free_validate_list(int fd, struct intel_bo_list *list)
+static void
+intel_free_validate_list(int fd, struct intel_bo_list *list)
 {
     struct intel_bo_node *node;
     drmMMListHead *l;
 
     for (l = list->list.next; l != &list->list; l = l->next) {
-        node = DRMLISTENTRY(struct intel_bo_node, l, head);    
+        node = DRMLISTENTRY(struct intel_bo_node, l, head);
 
 	if (node->destroy)
 	    (*node->destroy)(node->priv);
@@ -222,18 +230,20 @@ static void intel_free_validate_list(int fd, struct intel_bo_list *list)
     }
 }
 
-static void intel_free_reloc_list(int fd, struct intel_bo_list *reloc_list)
+static void
+intel_free_reloc_list(int fd, struct intel_bo_list *reloc_list)
 {
     struct intel_bo_reloc_node *reloc_node;
     drmMMListHead *rl, *tmp;
 
-    for (rl = reloc_list->list.next, tmp = rl->next; rl != &reloc_list->list; rl = tmp, tmp = rl->next) {
+    for (rl = reloc_list->list.next, tmp = rl->next; rl != &reloc_list->list;
+	 rl = tmp, tmp = rl->next)
+    {
 	reloc_node = DRMLISTENTRY(struct intel_bo_reloc_node, rl, head);
 
 	DRMLISTDEL(rl);
 
 	if (reloc_node->nr_reloc_types > 1) {
-	    
 	    /* TODO */
 	}
 
@@ -243,8 +253,10 @@ static void intel_free_reloc_list(int fd, struct intel_bo_list *reloc_list)
     }
 }
 
-static int intel_add_validate_buffer(struct intel_bo_list *list, dri_bo *buf, unsigned flags,
-				     unsigned mask, int *itemLoc, void (*destroy_cb)(void *))
+static int
+intel_add_validate_buffer(struct intel_bo_list *list, dri_bo *buf,
+			  unsigned flags, unsigned mask,
+			  int *itemLoc, void (*destroy_cb)(void *))
 {
     struct intel_bo_node *node, *cur;
     drmMMListHead *l;
@@ -261,7 +273,7 @@ static int intel_add_validate_buffer(struct intel_bo_list *list, dri_bo *buf, un
 	}
 	count++;
     }
-    
+
     if (!cur) {
 	cur = drmMalloc(sizeof(*cur));
 	if (!cur) {
@@ -275,11 +287,10 @@ static int intel_add_validate_buffer(struct intel_bo_list *list, dri_bo *buf, un
 	ret = 1;
 
 	DRMLISTADDTAIL(&cur->head, &list->list);
-
     } else {
 	unsigned memMask = (cur->arg1 | mask) & DRM_BO_MASK_MEM;
 	unsigned memFlags = cur->arg0 & flags & memMask;
-	
+
 	if (!memFlags) {
 	    return -EINVAL;
 	}
@@ -287,7 +298,7 @@ static int intel_add_validate_buffer(struct intel_bo_list *list, dri_bo *buf, un
 	    return -EINVAL;
 	}
 	cur->arg1 |= mask;
-	cur->arg0 = memFlags | ((cur->arg0 | flags) & 
+	cur->arg0 = memFlags | ((cur->arg0 | flags) &
 				cur->arg1 & ~DRM_BO_MASK_MEM);
     }
     *itemLoc = count;
@@ -295,28 +306,40 @@ static int intel_add_validate_buffer(struct intel_bo_list *list, dri_bo *buf, un
 }
 
 
-#define RELOC_BUF_SIZE(x) ((I915_RELOC_HEADER + x * I915_RELOC0_STRIDE) * sizeof(uint32_t))
+#define RELOC_BUF_SIZE(x) ((I915_RELOC_HEADER + x * I915_RELOC0_STRIDE) * \
+	sizeof(uint32_t))
 
-static int intel_create_new_reloc_type_list(int fd, struct intel_bo_reloc_list *cur_type, int max_relocs)
+static int
+intel_create_new_reloc_type_list(int fd, struct intel_bo_reloc_list *cur_type,
+				 int max_relocs)
 {
     int ret;
-    
+
     /* should allocate a drmBO here */
     ret = drmBOCreate(fd, RELOC_BUF_SIZE(max_relocs), 0,
 		      NULL,
-		      DRM_BO_FLAG_MEM_LOCAL | DRM_BO_FLAG_READ | DRM_BO_FLAG_WRITE | DRM_BO_FLAG_MAPPABLE | DRM_BO_FLAG_CACHED,
+		      DRM_BO_FLAG_MEM_LOCAL |
+		      DRM_BO_FLAG_READ |
+		      DRM_BO_FLAG_WRITE |
+		      DRM_BO_FLAG_MAPPABLE |
+		      DRM_BO_FLAG_CACHED,
 		      0, &cur_type->buf);
     if (ret)
 	return ret;
-    
-    ret = drmBOMap(fd, &cur_type->buf, DRM_BO_FLAG_READ | DRM_BO_FLAG_WRITE, 0, (void **)&cur_type->relocs);
+
+    ret = drmBOMap(fd, &cur_type->buf,
+		   DRM_BO_FLAG_READ | DRM_BO_FLAG_WRITE,
+		   0, (void **)&cur_type->relocs);
     if (ret)
 	return ret;
     return 0;
 }
 
 
-static int intel_add_validate_reloc(int fd, struct intel_bo_list *reloc_list, struct intel_reloc_info *reloc_info, uint32_t max_relocs)
+static int
+intel_add_validate_reloc(int fd, struct intel_bo_list *reloc_list,
+			 struct intel_reloc_info *reloc_info,
+			 uint32_t max_relocs)
 {
     struct intel_bo_reloc_node *rl_node, *cur;
     drmMMListHead *rl, *l;
@@ -361,21 +384,23 @@ static int intel_add_validate_reloc(int fd, struct intel_bo_list *reloc_list, st
 		cur_type = &cur->type_list;
 		found = 1;
 	} else {
-	    for (l = cur->type_list.head.next; l != &cur->type_list.head; l = l->next) {
+	    for (l = cur->type_list.head.next; l != &cur->type_list.head;
+		 l = l->next)
+	    {
 	        cur_type = DRMLISTENTRY(struct intel_bo_reloc_list, l, head);
 	        if (((cur_type->relocs[0] >> 16) & 0xffff) == reloc_info->type)
 	    	    found = 1;
 		break;
 	    }
         }
-	
+
 	/* didn't find the relocation type */
 	if (!found) {
 	    cur_type = malloc(sizeof(*cur_type));
 	    if (!cur_type) {
 		return -ENOMEM;
 	    }
-	    
+
 	    ret = intel_create_new_reloc_type_list(fd, cur_type, max_relocs);
 	    DRMLISTADDTAIL(&cur_type->head, &cur->type_list.head);
 
@@ -390,9 +415,12 @@ static int intel_add_validate_reloc(int fd, struct intel_bo_list *reloc_list, st
 
     num_relocs = (reloc_start[0] & 0xffff);
 
-    reloc_start[num_relocs*I915_RELOC0_STRIDE + I915_RELOC_HEADER] = reloc_info->reloc;
-    reloc_start[num_relocs*I915_RELOC0_STRIDE + I915_RELOC_HEADER+1] = reloc_info->delta;
-    reloc_start[num_relocs*I915_RELOC0_STRIDE + I915_RELOC_HEADER+2] = reloc_info->index;
+    reloc_start[num_relocs * I915_RELOC0_STRIDE + I915_RELOC_HEADER] =
+       reloc_info->reloc;
+    reloc_start[num_relocs * I915_RELOC0_STRIDE + I915_RELOC_HEADER + 1] =
+       reloc_info->delta;
+    reloc_start[num_relocs * I915_RELOC0_STRIDE + I915_RELOC_HEADER + 2] =
+       reloc_info->index;
     reloc_start[0]++;
     if (((reloc_start[0] & 0xffff)) > (max_relocs)) {
 	return -ENOMEM;
@@ -405,17 +433,17 @@ static int intel_add_validate_reloc(int fd, struct intel_bo_list *reloc_list, st
 int
 driFenceSignaled(DriFenceObject * fence, unsigned type)
 {
-   int signaled;
-   int ret;
+    int signaled;
+    int ret;
 
-   if (fence == NULL)
-      return GL_TRUE;
+    if (fence == NULL)
+	return GL_TRUE;
 
-   _glthread_LOCK_MUTEX(fence->mutex);
-   ret = drmFenceSignaled(bufmgr_ttm->fd, &fence->fence, type, &signaled);
-   _glthread_UNLOCK_MUTEX(fence->mutex);
-   BM_CKFATAL(ret);
-   return signaled;
+    _glthread_LOCK_MUTEX(fence->mutex);
+    ret = drmFenceSignaled(bufmgr_ttm->fd, &fence->fence, type, &signaled);
+    _glthread_UNLOCK_MUTEX(fence->mutex);
+    BM_CKFATAL(ret);
+    return signaled;
 }
 #endif
 
@@ -424,45 +452,45 @@ dri_ttm_alloc(dri_bufmgr *bufmgr, const char *name,
 	      unsigned long size, unsigned int alignment,
 	      unsigned int location_mask)
 {
-   dri_bufmgr_ttm *ttm_bufmgr;
-   dri_bo_ttm *ttm_buf;
-   unsigned int pageSize = getpagesize();
-   int ret;
-   unsigned int flags, hint;
-
-   ttm_bufmgr = (dri_bufmgr_ttm *)bufmgr;
-
-   ttm_buf = malloc(sizeof(*ttm_buf));
-   if (!ttm_buf)
-      return NULL;
-
-   /* The mask argument doesn't do anything for us that we want other than
-    * determine which pool (TTM or local) the buffer is allocated into, so just
-    * pass all of the allocation class flags.
-    */
-   flags = location_mask | DRM_BO_FLAG_READ | DRM_BO_FLAG_WRITE |
-      DRM_BO_FLAG_EXE;
-   /* No hints we want to use. */
-   hint = 0;
-
-   ret = drmBOCreate(ttm_bufmgr->fd, size, alignment / pageSize,
-		     NULL, flags, hint, &ttm_buf->drm_bo);
-   if (ret != 0) {
-      free(ttm_buf);
-      return NULL;
-   }
-   ttm_buf->bo.size = ttm_buf->drm_bo.size;
-   ttm_buf->bo.offset = ttm_buf->drm_bo.offset;
-   ttm_buf->bo.virtual = NULL;
-   ttm_buf->bo.bufmgr = bufmgr;
-   ttm_buf->name = name;
-   ttm_buf->refcount = 1;
+    dri_bufmgr_ttm *ttm_bufmgr;
+    dri_bo_ttm *ttm_buf;
+    unsigned int pageSize = getpagesize();
+    int ret;
+    unsigned int flags, hint;
+
+    ttm_bufmgr = (dri_bufmgr_ttm *)bufmgr;
+
+    ttm_buf = malloc(sizeof(*ttm_buf));
+    if (!ttm_buf)
+	return NULL;
+
+    /* The mask argument doesn't do anything for us that we want other than
+     * determine which pool (TTM or local) the buffer is allocated into, so
+     * just pass all of the allocation class flags.
+     */
+    flags = location_mask | DRM_BO_FLAG_READ | DRM_BO_FLAG_WRITE |
+	DRM_BO_FLAG_EXE;
+    /* No hints we want to use. */
+    hint = 0;
+
+    ret = drmBOCreate(ttm_bufmgr->fd, size, alignment / pageSize,
+		      NULL, flags, hint, &ttm_buf->drm_bo);
+    if (ret != 0) {
+	free(ttm_buf);
+	return NULL;
+    }
+    ttm_buf->bo.size = ttm_buf->drm_bo.size;
+    ttm_buf->bo.offset = ttm_buf->drm_bo.offset;
+    ttm_buf->bo.virtual = NULL;
+    ttm_buf->bo.bufmgr = bufmgr;
+    ttm_buf->name = name;
+    ttm_buf->refcount = 1;
 
 #if BUFMGR_DEBUG
-   fprintf(stderr, "bo_create: %p (%s)\n", &ttm_buf->bo, ttm_buf->name);
+    fprintf(stderr, "bo_create: %p (%s)\n", &ttm_buf->bo, ttm_buf->name);
 #endif
 
-   return &ttm_buf->bo;
+    return &ttm_buf->bo;
 }
 
 /* Our TTM backend doesn't allow creation of static buffers, as that requires
@@ -474,10 +502,11 @@ dri_ttm_alloc_static(dri_bufmgr *bufmgr, const char *name,
 		     unsigned long offset, unsigned long size, void *virtual,
 		     unsigned int location_mask)
 {
-   return NULL;
+    return NULL;
 }
 
-/** Returns a dri_bo wrapping the given buffer object handle.
+/**
+ * Returns a dri_bo wrapping the given buffer object handle.
  *
  * This can be used when one application needs to pass a buffer object
  * to another.
@@ -486,121 +515,122 @@ dri_bo *
 intel_ttm_bo_create_from_handle(dri_bufmgr *bufmgr, const char *name,
 			      unsigned int handle)
 {
-   dri_bufmgr_ttm *ttm_bufmgr;
-   dri_bo_ttm *ttm_buf;
-   int ret;
+    dri_bufmgr_ttm *ttm_bufmgr;
+    dri_bo_ttm *ttm_buf;
+    int ret;
 
-   ttm_bufmgr = (dri_bufmgr_ttm *)bufmgr;
+    ttm_bufmgr = (dri_bufmgr_ttm *)bufmgr;
 
-   ttm_buf = malloc(sizeof(*ttm_buf));
-   if (!ttm_buf)
-      return NULL;
+    ttm_buf = malloc(sizeof(*ttm_buf));
+    if (!ttm_buf)
+	return NULL;
 
-   ret = drmBOReference(ttm_bufmgr->fd, handle, &ttm_buf->drm_bo);
-   if (ret != 0) {
-      free(ttm_buf);
-      return NULL;
-   }
-   ttm_buf->bo.size = ttm_buf->drm_bo.size;
-   ttm_buf->bo.offset = ttm_buf->drm_bo.offset;
-   ttm_buf->bo.virtual = NULL;
-   ttm_buf->bo.bufmgr = bufmgr;
-   ttm_buf->name = name;
-   ttm_buf->refcount = 1;
+    ret = drmBOReference(ttm_bufmgr->fd, handle, &ttm_buf->drm_bo);
+    if (ret != 0) {
+	free(ttm_buf);
+	return NULL;
+    }
+    ttm_buf->bo.size = ttm_buf->drm_bo.size;
+    ttm_buf->bo.offset = ttm_buf->drm_bo.offset;
+    ttm_buf->bo.virtual = NULL;
+    ttm_buf->bo.bufmgr = bufmgr;
+    ttm_buf->name = name;
+    ttm_buf->refcount = 1;
 
 #if BUFMGR_DEBUG
-   fprintf(stderr, "bo_create_from_handle: %p %08x (%s)\n", &ttm_buf->bo, handle,
-	   ttm_buf->name);
+    fprintf(stderr, "bo_create_from_handle: %p %08x (%s)\n",
+	    &ttm_buf->bo, handle, ttm_buf->name);
 #endif
 
-   return &ttm_buf->bo;
+    return &ttm_buf->bo;
 }
 
 static void
 dri_ttm_bo_reference(dri_bo *buf)
 {
-   dri_bufmgr_ttm *bufmgr_ttm = (dri_bufmgr_ttm *)buf->bufmgr;
-   dri_bo_ttm *ttm_buf = (dri_bo_ttm *)buf;
+    dri_bufmgr_ttm *bufmgr_ttm = (dri_bufmgr_ttm *)buf->bufmgr;
+    dri_bo_ttm *ttm_buf = (dri_bo_ttm *)buf;
 
-   _glthread_LOCK_MUTEX(bufmgr_ttm->mutex);
-   ttm_buf->refcount++;
-   _glthread_UNLOCK_MUTEX(bufmgr_ttm->mutex);
+    _glthread_LOCK_MUTEX(bufmgr_ttm->mutex);
+    ttm_buf->refcount++;
+    _glthread_UNLOCK_MUTEX(bufmgr_ttm->mutex);
 }
 
 static void
 dri_ttm_bo_unreference(dri_bo *buf)
 {
-   dri_bufmgr_ttm *bufmgr_ttm = (dri_bufmgr_ttm *)buf->bufmgr;
-   dri_bo_ttm *ttm_buf = (dri_bo_ttm *)buf;
+    dri_bufmgr_ttm *bufmgr_ttm = (dri_bufmgr_ttm *)buf->bufmgr;
+    dri_bo_ttm *ttm_buf = (dri_bo_ttm *)buf;
 
-   if (!buf)
-      return;
+    if (!buf)
+	return;
 
-   _glthread_LOCK_MUTEX(bufmgr_ttm->mutex);
-   if (--ttm_buf->refcount == 0) {
-      int ret;
+    _glthread_LOCK_MUTEX(bufmgr_ttm->mutex);
+    if (--ttm_buf->refcount == 0) {
+	int ret;
 
-      ret = drmBOUnreference(bufmgr_ttm->fd, &ttm_buf->drm_bo);
-      if (ret != 0) {
-	 fprintf(stderr, "drmBOUnreference failed (%s): %s\n", ttm_buf->name,
-		 strerror(-ret));
-      }
+	ret = drmBOUnreference(bufmgr_ttm->fd, &ttm_buf->drm_bo);
+	if (ret != 0) {
+	    fprintf(stderr, "drmBOUnreference failed (%s): %s\n",
+		    ttm_buf->name, strerror(-ret));
+	}
 #if BUFMGR_DEBUG
-      fprintf(stderr, "bo_unreference final: %p (%s)\n",
-	      &ttm_buf->bo, ttm_buf->name);
+	fprintf(stderr, "bo_unreference final: %p (%s)\n",
+		&ttm_buf->bo, ttm_buf->name);
 #endif
-      _glthread_UNLOCK_MUTEX(bufmgr_ttm->mutex);
-      free(buf);
-      return;
-   }
-   _glthread_UNLOCK_MUTEX(bufmgr_ttm->mutex);
+	_glthread_UNLOCK_MUTEX(bufmgr_ttm->mutex);
+	free(buf);
+	return;
+    }
+    _glthread_UNLOCK_MUTEX(bufmgr_ttm->mutex);
 }
 
 static int
 dri_ttm_bo_map(dri_bo *buf, GLboolean write_enable)
 {
-   dri_bufmgr_ttm *bufmgr_ttm;
-   dri_bo_ttm *ttm_buf = (dri_bo_ttm *)buf;
-   unsigned int flags;
+    dri_bufmgr_ttm *bufmgr_ttm;
+    dri_bo_ttm *ttm_buf = (dri_bo_ttm *)buf;
+    unsigned int flags;
 
-   bufmgr_ttm = (dri_bufmgr_ttm *)buf->bufmgr;
+    bufmgr_ttm = (dri_bufmgr_ttm *)buf->bufmgr;
 
-   flags = DRM_BO_FLAG_READ;
-   if (write_enable)
-       flags |= DRM_BO_FLAG_WRITE;
+    flags = DRM_BO_FLAG_READ;
+    if (write_enable)
+	flags |= DRM_BO_FLAG_WRITE;
 
-   assert(buf->virtual == NULL);
+    assert(buf->virtual == NULL);
 
 #if BUFMGR_DEBUG
-   fprintf(stderr, "bo_map: %p (%s)\n", &ttm_buf->bo, ttm_buf->name);
+    fprintf(stderr, "bo_map: %p (%s)\n", &ttm_buf->bo, ttm_buf->name);
 #endif
 
-   return drmBOMap(bufmgr_ttm->fd, &ttm_buf->drm_bo, flags, 0, &buf->virtual);
+    return drmBOMap(bufmgr_ttm->fd, &ttm_buf->drm_bo, flags, 0, &buf->virtual);
 }
 
 static int
 dri_ttm_bo_unmap(dri_bo *buf)
 {
-   dri_bufmgr_ttm *bufmgr_ttm;
-   dri_bo_ttm *ttm_buf = (dri_bo_ttm *)buf;
+    dri_bufmgr_ttm *bufmgr_ttm;
+    dri_bo_ttm *ttm_buf = (dri_bo_ttm *)buf;
 
-   if (buf == NULL)
-      return 0;
+    if (buf == NULL)
+	return 0;
 
-   bufmgr_ttm = (dri_bufmgr_ttm *)buf->bufmgr;
+    bufmgr_ttm = (dri_bufmgr_ttm *)buf->bufmgr;
 
-   assert(buf->virtual != NULL);
+    assert(buf->virtual != NULL);
 
-   buf->virtual = NULL;
+    buf->virtual = NULL;
 
 #if BUFMGR_DEBUG
-   fprintf(stderr, "bo_unmap: %p (%s)\n", &ttm_buf->bo, ttm_buf->name);
+    fprintf(stderr, "bo_unmap: %p (%s)\n", &ttm_buf->bo, ttm_buf->name);
 #endif
 
-   return drmBOUnmap(bufmgr_ttm->fd, &ttm_buf->drm_bo);
+    return drmBOUnmap(bufmgr_ttm->fd, &ttm_buf->drm_bo);
 }
 
-/* Returns a dri_bo wrapping the given buffer object handle.
+/**
+ * Returns a dri_bo wrapping the given buffer object handle.
  *
  * This can be used when one application needs to pass a buffer object
  * to another.
@@ -609,183 +639,187 @@ dri_fence *
 intel_ttm_fence_create_from_arg(dri_bufmgr *bufmgr, const char *name,
 				drm_fence_arg_t *arg)
 {
-   dri_bufmgr_ttm *ttm_bufmgr;
-   dri_fence_ttm *ttm_fence;
+    dri_bufmgr_ttm *ttm_bufmgr;
+    dri_fence_ttm *ttm_fence;
 
-   ttm_bufmgr = (dri_bufmgr_ttm *)bufmgr;
+    ttm_bufmgr = (dri_bufmgr_ttm *)bufmgr;
 
-   ttm_fence = malloc(sizeof(*ttm_fence));
-   if (!ttm_fence)
-      return NULL;
+    ttm_fence = malloc(sizeof(*ttm_fence));
+    if (!ttm_fence)
+	return NULL;
 
-   ttm_fence->drm_fence.handle = arg->handle;
-   ttm_fence->drm_fence.fence_class = arg->fence_class;
-   ttm_fence->drm_fence.type = arg->type;
-   ttm_fence->drm_fence.flags = arg->flags;
-   ttm_fence->drm_fence.signaled = 0;
-   ttm_fence->drm_fence.sequence = arg->sequence;
+    ttm_fence->drm_fence.handle = arg->handle;
+    ttm_fence->drm_fence.fence_class = arg->fence_class;
+    ttm_fence->drm_fence.type = arg->type;
+    ttm_fence->drm_fence.flags = arg->flags;
+    ttm_fence->drm_fence.signaled = 0;
+    ttm_fence->drm_fence.sequence = arg->sequence;
 
-   ttm_fence->fence.bufmgr = bufmgr;
-   ttm_fence->name = name;
-   ttm_fence->refcount = 1;
+    ttm_fence->fence.bufmgr = bufmgr;
+    ttm_fence->name = name;
+    ttm_fence->refcount = 1;
 
 #if BUFMGR_DEBUG
-   fprintf(stderr, "fence_create_from_handle: %p (%s)\n", &ttm_fence->fence,
-	   ttm_fence->name);
+    fprintf(stderr, "fence_create_from_handle: %p (%s)\n", &ttm_fence->fence,
+	    ttm_fence->name);
 #endif
 
-   return &ttm_fence->fence;
+    return &ttm_fence->fence;
 }
 
 
 static void
 dri_ttm_fence_reference(dri_fence *fence)
 {
-   dri_fence_ttm *fence_ttm = (dri_fence_ttm *)fence;
-   dri_bufmgr_ttm *bufmgr_ttm = (dri_bufmgr_ttm *)fence->bufmgr;
+    dri_fence_ttm *fence_ttm = (dri_fence_ttm *)fence;
+    dri_bufmgr_ttm *bufmgr_ttm = (dri_bufmgr_ttm *)fence->bufmgr;
 
-   _glthread_LOCK_MUTEX(bufmgr_ttm->mutex);
-   ++fence_ttm->refcount;
-   _glthread_UNLOCK_MUTEX(bufmgr_ttm->mutex);
+    _glthread_LOCK_MUTEX(bufmgr_ttm->mutex);
+    ++fence_ttm->refcount;
+    _glthread_UNLOCK_MUTEX(bufmgr_ttm->mutex);
 #if BUFMGR_DEBUG
-   fprintf(stderr, "fence_reference: %p (%s)\n", &fence_ttm->fence,
-	   fence_ttm->name);
+    fprintf(stderr, "fence_reference: %p (%s)\n", &fence_ttm->fence,
+	    fence_ttm->name);
 #endif
 }
 
 static void
 dri_ttm_fence_unreference(dri_fence *fence)
 {
-   dri_fence_ttm *fence_ttm = (dri_fence_ttm *)fence;
-   dri_bufmgr_ttm *bufmgr_ttm = (dri_bufmgr_ttm *)fence->bufmgr;
+    dri_fence_ttm *fence_ttm = (dri_fence_ttm *)fence;
+    dri_bufmgr_ttm *bufmgr_ttm = (dri_bufmgr_ttm *)fence->bufmgr;
 
-   if (!fence)
-      return;
+    if (!fence)
+	return;
 
 #if BUFMGR_DEBUG
-   fprintf(stderr, "fence_unreference: %p (%s)\n", &fence_ttm->fence,
-	   fence_ttm->name);
+    fprintf(stderr, "fence_unreference: %p (%s)\n", &fence_ttm->fence,
+	    fence_ttm->name);
 #endif
-   _glthread_LOCK_MUTEX(bufmgr_ttm->mutex);
-   if (--fence_ttm->refcount == 0) {
-      int ret;
-
-      ret = drmFenceUnreference(bufmgr_ttm->fd, &fence_ttm->drm_fence);
-      if (ret != 0) {
-	 fprintf(stderr, "drmFenceUnreference failed (%s): %s\n",
-		 fence_ttm->name, strerror(-ret));
-      }
-
-      _glthread_UNLOCK_MUTEX(bufmgr_ttm->mutex);
-      free(fence);
-      return;
-   }
-   _glthread_UNLOCK_MUTEX(bufmgr_ttm->mutex);
+    _glthread_LOCK_MUTEX(bufmgr_ttm->mutex);
+    if (--fence_ttm->refcount == 0) {
+	int ret;
+
+	ret = drmFenceUnreference(bufmgr_ttm->fd, &fence_ttm->drm_fence);
+	if (ret != 0) {
+	    fprintf(stderr, "drmFenceUnreference failed (%s): %s\n",
+		    fence_ttm->name, strerror(-ret));
+	}
+
+	_glthread_UNLOCK_MUTEX(bufmgr_ttm->mutex);
+	free(fence);
+	return;
+    }
+    _glthread_UNLOCK_MUTEX(bufmgr_ttm->mutex);
 }
 
 static void
 dri_ttm_fence_wait(dri_fence *fence)
 {
-   dri_fence_ttm *fence_ttm = (dri_fence_ttm *)fence;
-   dri_bufmgr_ttm *bufmgr_ttm = (dri_bufmgr_ttm *)fence->bufmgr;
-   int ret;
+    dri_fence_ttm *fence_ttm = (dri_fence_ttm *)fence;
+    dri_bufmgr_ttm *bufmgr_ttm = (dri_bufmgr_ttm *)fence->bufmgr;
+    int ret;
 
-   _glthread_LOCK_MUTEX(bufmgr_ttm->mutex);
-   ret = drmFenceWait(bufmgr_ttm->fd, 0, &fence_ttm->drm_fence, 0);
-   _glthread_UNLOCK_MUTEX(bufmgr_ttm->mutex);
-   if (ret != 0) {
-      _mesa_printf("%s:%d: Error %d waiting for fence %s.\n",
-		   __FILE__, __LINE__, ret, fence_ttm->name);
-      abort();
-   }
+    _glthread_LOCK_MUTEX(bufmgr_ttm->mutex);
+    ret = drmFenceWait(bufmgr_ttm->fd, 0, &fence_ttm->drm_fence, 0);
+    _glthread_UNLOCK_MUTEX(bufmgr_ttm->mutex);
+    if (ret != 0) {
+	_mesa_printf("%s:%d: Error %d waiting for fence %s.\n",
+		     __FILE__, __LINE__, ret, fence_ttm->name);
+	abort();
+    }
 
 #if BUFMGR_DEBUG
-   fprintf(stderr, "fence_wait: %p (%s)\n", &fence_ttm->fence,
-	   fence_ttm->name);
+    fprintf(stderr, "fence_wait: %p (%s)\n", &fence_ttm->fence,
+	    fence_ttm->name);
 #endif
 }
 
 static void
 dri_bufmgr_ttm_destroy(dri_bufmgr *bufmgr)
 {
-   dri_bufmgr_ttm *bufmgr_ttm = (dri_bufmgr_ttm *)bufmgr;
+    dri_bufmgr_ttm *bufmgr_ttm = (dri_bufmgr_ttm *)bufmgr;
 
-   intel_bo_free_list(&bufmgr_ttm->list);
-   intel_bo_free_list(&bufmgr_ttm->reloc_list);
+    intel_bo_free_list(&bufmgr_ttm->list);
+    intel_bo_free_list(&bufmgr_ttm->reloc_list);
 
-   _glthread_DESTROY_MUTEX(bufmgr_ttm->mutex);
-   free(bufmgr);
+    _glthread_DESTROY_MUTEX(bufmgr_ttm->mutex);
+    free(bufmgr);
 }
 
 
-static void intel_dribo_destroy_callback(void *priv)
+static void
+intel_dribo_destroy_callback(void *priv)
 {
-   dri_bo *dribo = priv;
-   
-   if (dribo) {
-     dri_bo_unreference(dribo);
-   }
+    dri_bo *dribo = priv;
+
+    if (dribo)
+	dri_bo_unreference(dribo);
 }
 
 static void
-dri_ttm_emit_reloc(dri_bo *batch_buf, GLuint flags, GLuint delta, GLuint offset,
-		    dri_bo *relocatee)
-{
-   dri_bo_ttm *ttm_buf = (dri_bo_ttm *)batch_buf;
-   dri_bufmgr_ttm *bufmgr_ttm = (dri_bufmgr_ttm *)batch_buf->bufmgr;
-   int newItem;
-   struct intel_reloc_info reloc;
-   int mask;
-   int ret;
-
-   mask = DRM_BO_MASK_MEM;
-   mask |= flags & (DRM_BO_FLAG_READ | DRM_BO_FLAG_WRITE | DRM_BO_FLAG_EXE);
-
-   ret = intel_add_validate_buffer(&bufmgr_ttm->list, relocatee, flags, mask, &newItem, intel_dribo_destroy_callback);
-   if (ret < 0)
-     return;
-
-   if (ret == 1) {
-      dri_bo_reference(relocatee);
-   }
-
-   reloc.type = I915_RELOC_TYPE_0;
-   reloc.reloc = offset;
-   reloc.delta = delta;
-   reloc.index = newItem;
-   reloc.handle = ttm_buf->drm_bo.handle;
-
-   intel_add_validate_reloc(bufmgr_ttm->fd, &bufmgr_ttm->reloc_list, &reloc, bufmgr_ttm->max_relocs);
-   return;
+dri_ttm_emit_reloc(dri_bo *reloc_buf, GLuint flags, GLuint delta,
+		   GLuint offset, dri_bo *target_buf)
+{
+    dri_bo_ttm *ttm_buf = (dri_bo_ttm *)reloc_buf;
+    dri_bufmgr_ttm *bufmgr_ttm = (dri_bufmgr_ttm *)reloc_buf->bufmgr;
+    int newItem;
+    struct intel_reloc_info reloc;
+    int mask;
+    int ret;
+
+    mask = DRM_BO_MASK_MEM;
+    mask |= flags & (DRM_BO_FLAG_READ | DRM_BO_FLAG_WRITE | DRM_BO_FLAG_EXE);
+
+    ret = intel_add_validate_buffer(&bufmgr_ttm->list, target_buf, flags, mask,
+				    &newItem, intel_dribo_destroy_callback);
+    if (ret < 0)
+	return;
+
+    if (ret == 1)
+	dri_bo_reference(target_buf);
+
+    reloc.type = I915_RELOC_TYPE_0;
+    reloc.reloc = offset;
+    reloc.delta = delta;
+    reloc.index = newItem;
+    reloc.handle = ttm_buf->drm_bo.handle;
+
+    intel_add_validate_reloc(bufmgr_ttm->fd, &bufmgr_ttm->reloc_list, &reloc,
+			     bufmgr_ttm->max_relocs);
+    return;
 }
 
 
 static void *
 dri_ttm_process_reloc(dri_bo *batch_buf, GLuint *count)
 {
-   dri_bufmgr_ttm *bufmgr_ttm = (dri_bufmgr_ttm *)batch_buf->bufmgr;
-   void *ptr;
-   int itemLoc;
+    dri_bufmgr_ttm *bufmgr_ttm = (dri_bufmgr_ttm *)batch_buf->bufmgr;
+    void *ptr;
+    int itemLoc;
 
-   dri_bo_unmap(batch_buf);
+    dri_bo_unmap(batch_buf);
 
-   intel_add_validate_buffer(&bufmgr_ttm->list, batch_buf, DRM_BO_FLAG_MEM_TT | DRM_BO_FLAG_EXE,
-			     DRM_BO_MASK_MEM | DRM_BO_FLAG_EXE, &itemLoc, NULL);
+    intel_add_validate_buffer(&bufmgr_ttm->list, batch_buf,
+			      DRM_BO_FLAG_MEM_TT | DRM_BO_FLAG_EXE,
+			      DRM_BO_MASK_MEM | DRM_BO_FLAG_EXE,
+			      &itemLoc, NULL);
 
-   ptr = intel_setup_validate_list(bufmgr_ttm->fd, &bufmgr_ttm->list, &bufmgr_ttm->reloc_list, count);
+    ptr = intel_setup_validate_list(bufmgr_ttm->fd, &bufmgr_ttm->list,
+				    &bufmgr_ttm->reloc_list, count);
 
-   return ptr;
+    return ptr;
 }
 
 static void
 dri_ttm_post_submit(dri_bo *batch_buf, dri_fence **last_fence)
 {
-   dri_bufmgr_ttm *bufmgr_ttm = (dri_bufmgr_ttm *)batch_buf->bufmgr;
+    dri_bufmgr_ttm *bufmgr_ttm = (dri_bufmgr_ttm *)batch_buf->bufmgr;
 
-   intel_free_validate_list(bufmgr_ttm->fd, &bufmgr_ttm->list);
-   intel_free_reloc_list(bufmgr_ttm->fd, &bufmgr_ttm->reloc_list);
+    intel_free_validate_list(bufmgr_ttm->fd, &bufmgr_ttm->list);
+    intel_free_reloc_list(bufmgr_ttm->fd, &bufmgr_ttm->reloc_list);
 
-   intel_bo_free_list(&bufmgr_ttm->list);
+    intel_bo_free_list(&bufmgr_ttm->list);
 }
 
 /**
@@ -801,33 +835,34 @@ dri_bufmgr *
 intel_bufmgr_ttm_init(int fd, unsigned int fence_type,
 		      unsigned int fence_type_flush, int batch_size)
 {
-   dri_bufmgr_ttm *bufmgr_ttm;
-
-   bufmgr_ttm = malloc(sizeof(*bufmgr_ttm));
-   bufmgr_ttm->fd = fd;
-   bufmgr_ttm->fence_type = fence_type;
-   bufmgr_ttm->fence_type_flush = fence_type_flush;
-   _glthread_INIT_MUTEX(bufmgr_ttm->mutex);
-
-   /* lets go with one relocation per every four dwords - purely heuristic */
-   bufmgr_ttm->max_relocs = batch_size / sizeof(uint32_t) / 4;
-
-   intel_create_bo_list(10, &bufmgr_ttm->list, NULL);
-   intel_create_bo_list(1, &bufmgr_ttm->reloc_list, NULL);
-
-   bufmgr_ttm->bufmgr.bo_alloc = dri_ttm_alloc;
-   bufmgr_ttm->bufmgr.bo_alloc_static = dri_ttm_alloc_static;
-   bufmgr_ttm->bufmgr.bo_reference = dri_ttm_bo_reference;
-   bufmgr_ttm->bufmgr.bo_unreference = dri_ttm_bo_unreference;
-   bufmgr_ttm->bufmgr.bo_map = dri_ttm_bo_map;
-   bufmgr_ttm->bufmgr.bo_unmap = dri_ttm_bo_unmap;
-   bufmgr_ttm->bufmgr.fence_reference = dri_ttm_fence_reference;
-   bufmgr_ttm->bufmgr.fence_unreference = dri_ttm_fence_unreference;
-   bufmgr_ttm->bufmgr.fence_wait = dri_ttm_fence_wait;
-   bufmgr_ttm->bufmgr.destroy = dri_bufmgr_ttm_destroy;
-   bufmgr_ttm->bufmgr.emit_reloc = dri_ttm_emit_reloc;
-   bufmgr_ttm->bufmgr.process_relocs = dri_ttm_process_reloc;
-   bufmgr_ttm->bufmgr.post_submit = dri_ttm_post_submit;
-   return &bufmgr_ttm->bufmgr;
+    dri_bufmgr_ttm *bufmgr_ttm;
+
+    bufmgr_ttm = malloc(sizeof(*bufmgr_ttm));
+    bufmgr_ttm->fd = fd;
+    bufmgr_ttm->fence_type = fence_type;
+    bufmgr_ttm->fence_type_flush = fence_type_flush;
+    _glthread_INIT_MUTEX(bufmgr_ttm->mutex);
+
+    /* lets go with one relocation per every four dwords - purely heuristic */
+    bufmgr_ttm->max_relocs = batch_size / sizeof(uint32_t) / 4;
+
+    intel_create_bo_list(10, &bufmgr_ttm->list, NULL);
+    intel_create_bo_list(1, &bufmgr_ttm->reloc_list, NULL);
+
+    bufmgr_ttm->bufmgr.bo_alloc = dri_ttm_alloc;
+    bufmgr_ttm->bufmgr.bo_alloc_static = dri_ttm_alloc_static;
+    bufmgr_ttm->bufmgr.bo_reference = dri_ttm_bo_reference;
+    bufmgr_ttm->bufmgr.bo_unreference = dri_ttm_bo_unreference;
+    bufmgr_ttm->bufmgr.bo_map = dri_ttm_bo_map;
+    bufmgr_ttm->bufmgr.bo_unmap = dri_ttm_bo_unmap;
+    bufmgr_ttm->bufmgr.fence_reference = dri_ttm_fence_reference;
+    bufmgr_ttm->bufmgr.fence_unreference = dri_ttm_fence_unreference;
+    bufmgr_ttm->bufmgr.fence_wait = dri_ttm_fence_wait;
+    bufmgr_ttm->bufmgr.destroy = dri_bufmgr_ttm_destroy;
+    bufmgr_ttm->bufmgr.emit_reloc = dri_ttm_emit_reloc;
+    bufmgr_ttm->bufmgr.process_relocs = dri_ttm_process_reloc;
+    bufmgr_ttm->bufmgr.post_submit = dri_ttm_post_submit;
+
+    return &bufmgr_ttm->bufmgr;
 }