drm: lots of small cleanups and whitespace issues fixed up

remove a mach64 warning, align a lot of things from linux kernel

15 files changed, 82 insertions, 91 deletions

diff --git a/linux-core/drmP.h b/linux-core/drmP.h
index 642ab4b0..6046dde6 100644
--- a/linux-core/drmP.h
+++ b/linux-core/drmP.h
@@ -298,8 +298,8 @@ typedef struct drm_devstate {
 } drm_devstate_t;
 
 typedef struct drm_magic_entry {
-        drm_hash_item_t hash_item;
-        struct list_head head;
+	drm_hash_item_t hash_item;
+	struct list_head head;
 	struct drm_file *priv;
 } drm_magic_entry_t;
 
@@ -506,7 +506,7 @@ typedef struct drm_sigdata {
  */
 typedef struct drm_map_list {
 	struct list_head head;		/**< list head */
-        drm_hash_item_t hash;
+	drm_hash_item_t hash;
 	drm_map_t *map;			/**< mapping */
 	unsigned int user_token;
 } drm_map_list_t;
@@ -676,15 +676,15 @@ typedef struct drm_device {
 	/*@{ */
 	drm_file_t *file_first;		/**< file list head */
 	drm_file_t *file_last;		/**< file list tail */
-        drm_open_hash_t magiclist;
-        struct list_head magicfree;
+	drm_open_hash_t magiclist;
+	struct list_head magicfree;
 	/*@} */
 
 	/** \name Memory management */
 	/*@{ */
 	drm_map_list_t *maplist;	/**< Linked list of regions */
 	int map_count;			/**< Number of mappable regions */
-        drm_open_hash_t map_hash;       /**< User token hash table for maps */
+	drm_open_hash_t map_hash;       /**< User token hash table for maps */
 
 	/** \name Context handle management */
 	/*@{ */
diff --git a/linux-core/drm_bufs.c b/linux-core/drm_bufs.c
index eaec611e..7d3121d3 100644
--- a/linux-core/drm_bufs.c
+++ b/linux-core/drm_bufs.c
@@ -290,13 +290,13 @@ static int drm_addmap_core(drm_device_t * dev, unsigned int offset,
 
 	user_token = (map->type == _DRM_SHM) ? (unsigned long) map->handle : 
 		map->offset;
-        ret = drm_map_handle(dev, &list->hash, user_token, 0); 
+	ret = drm_map_handle(dev, &list->hash, user_token, 0); 
 
 	if (ret) {
-                drm_free(map, sizeof(*map), DRM_MEM_MAPS);
-                drm_free(list, sizeof(*list), DRM_MEM_MAPS);
-                mutex_unlock(&dev->struct_mutex);
-                return ret;
+		drm_free(map, sizeof(*map), DRM_MEM_MAPS);
+		drm_free(list, sizeof(*list), DRM_MEM_MAPS);
+		mutex_unlock(&dev->struct_mutex);
+		return ret;
 	}
 
 	list->user_token = list->hash.key;
@@ -384,7 +384,7 @@ int drm_rmmap_locked(drm_device_t *dev, drm_local_map_t *map)
 
 		if (r_list->map == map) {
 			list_del(list);
-                        drm_ht_remove_key(&dev->map_hash, r_list->user_token);
+			drm_ht_remove_key(&dev->map_hash, r_list->user_token);
 			drm_free(list, sizeof(*list), DRM_MEM_MAPS);
 			break;
 		}
diff --git a/linux-core/drm_fops.c b/linux-core/drm_fops.c
index 377007c6..48c77545 100644
--- a/linux-core/drm_fops.c
+++ b/linux-core/drm_fops.c
@@ -74,8 +74,8 @@ static int drm_setup(drm_device_t * dev)
 	for (i = 0; i < ARRAY_SIZE(dev->counts); i++)
 		atomic_set(&dev->counts[i], 0);
 
-        drm_ht_create(&dev->magiclist, DRM_MAGIC_HASH_ORDER);
-        INIT_LIST_HEAD(&dev->magicfree);
+	drm_ht_create(&dev->magiclist, DRM_MAGIC_HASH_ORDER);
+	INIT_LIST_HEAD(&dev->magicfree);
 
 	dev->ctxlist = drm_alloc(sizeof(*dev->ctxlist), DRM_MEM_CTXLIST);
 	if (dev->ctxlist == NULL)
diff --git a/linux-core/drm_ioctl.c b/linux-core/drm_ioctl.c
index 2ea6af08..776f462e 100644
--- a/linux-core/drm_ioctl.c
+++ b/linux-core/drm_ioctl.c
@@ -242,7 +242,7 @@ int drm_getclient(struct inode *inode, struct file *filp,
 {
 	drm_file_t *priv = filp->private_data;
 	drm_device_t *dev = priv->head->dev;
-	drm_client_t __user *argp = (void __user *)arg;
+	drm_client_t __user *argp = (drm_client_t __user *)arg;
 	drm_client_t client;
 	drm_file_t *pt;
 	int idx;
@@ -329,21 +329,23 @@ int drm_setversion(DRM_IOCTL_ARGS)
 	int if_version;
 	drm_set_version_t __user *argp = (void __user *)data;
  
-	DRM_COPY_FROM_USER_IOCTL(sv, argp, sizeof(sv));
+	if (copy_from_user(&sv, argp, sizeof(sv)))
+		return -EFAULT;
 
 	retv.drm_di_major = DRM_IF_MAJOR;
 	retv.drm_di_minor = DRM_IF_MINOR;
 	retv.drm_dd_major = dev->driver->major;
 	retv.drm_dd_minor = dev->driver->minor;
 
-	DRM_COPY_TO_USER_IOCTL(argp, retv, sizeof(sv));
+	if (copy_to_user(argp, &retv, sizeof(sv)))
+		return -EFAULT;
 
 	if (sv.drm_di_major != -1) {
 		if (sv.drm_di_major != DRM_IF_MAJOR ||
 		    sv.drm_di_minor < 0 || sv.drm_di_minor > DRM_IF_MINOR)
 			return EINVAL;
 		if_version = DRM_IF_VERSION(sv.drm_di_major, sv.drm_di_minor);
-		dev->if_version = DRM_MAX(if_version, dev->if_version);
+		dev->if_version = max(if_version, dev->if_version);
 		if (sv.drm_di_minor >= 1) {
 			/*
 			 * Version 1.1 includes tying of DRM to specific device
diff --git a/linux-core/drm_irq.c b/linux-core/drm_irq.c
index 21a649bc..c2a9e3d6 100644
--- a/linux-core/drm_irq.c
+++ b/linux-core/drm_irq.c
@@ -222,12 +222,12 @@ int drm_control(struct inode *inode, struct file *filp,
  * Wait for VBLANK.
  *
  * \param inode device inode.
- * \param filp file pointer.rm.
+ * \param filp file pointer.
  * \param cmd command.
  * \param data user argument, pointing to a drm_wait_vblank structure.
  * \return zero on success or a negative number on failure.
  *
- * Verifies the IRQ is installed
+ * Verifies the IRQ is installed.
  *
  * If a signal is requested checks if this task has already scheduled the same signal
  * for the same vblank sequence number - nothing to be done in
@@ -253,7 +253,8 @@ int drm_wait_vblank(DRM_IOCTL_ARGS)
 	if ((!dev->irq) || (!dev->irq_enabled))
 		return -EINVAL;
 
-	DRM_COPY_FROM_USER_IOCTL(vblwait, argp, sizeof(vblwait));
+	if (copy_from_user(&vblwait, argp, sizeof(vblwait)))
+		return -EFAULT;
 
 	switch (vblwait.request.type & ~_DRM_VBLANK_FLAGS_MASK) {
 	case _DRM_VBLANK_RELATIVE:
@@ -327,7 +328,8 @@ int drm_wait_vblank(DRM_IOCTL_ARGS)
 	}
 
       done:
-	DRM_COPY_TO_USER_IOCTL(argp, vblwait, sizeof(vblwait));
+	if (copy_to_user(argp, &vblwait, sizeof(vblwait)))
+		return -EFAULT;
 
 	return ret;
 }
diff --git a/linux-core/drm_lock.c b/linux-core/drm_lock.c
index a268d8ee..7aa00bc2 100644
--- a/linux-core/drm_lock.c
+++ b/linux-core/drm_lock.c
@@ -104,7 +104,7 @@ int drm_lock(struct inode *inode, struct file *filp,
 	__set_current_state(TASK_RUNNING);
 	remove_wait_queue(&dev->lock.lock_queue, &entry);
 
-        DRM_DEBUG( "%d %s\n", lock.context, ret ? "interrupted" : "has lock" );
+	DRM_DEBUG( "%d %s\n", lock.context, ret ? "interrupted" : "has lock" );
 	if (ret) return ret;
 
 	sigemptyset(&dev->sigmask);
diff --git a/linux-core/drm_pci.c b/linux-core/drm_pci.c
index b69dda22..40a65f3e 100644
--- a/linux-core/drm_pci.c
+++ b/linux-core/drm_pci.c
@@ -37,6 +37,7 @@
  */
 
 #include <linux/pci.h>
+#include <linux/dma-mapping.h>
 #include "drmP.h"
 
 /**********************************************************************/
@@ -83,11 +84,7 @@ drm_dma_handle_t *drm_pci_alloc(drm_device_t * dev, size_t size, size_t align,
 		return NULL;
 
 	dmah->size = size;
-#if 0
-	dmah->vaddr = pci_alloc_consistent(dev->pdev, size, &dmah->busaddr);
-#else
 	dmah->vaddr = dma_alloc_coherent(&dev->pdev->dev, size, &dmah->busaddr, GFP_KERNEL | __GFP_COMP);
-#endif
 
 #ifdef DRM_DEBUG_MEMORY
 	if (dmah->vaddr == NULL) {
@@ -112,14 +109,12 @@ drm_dma_handle_t *drm_pci_alloc(drm_device_t * dev, size_t size, size_t align,
 
 	memset(dmah->vaddr, 0, size);
 
-#if 1
 	/* XXX - Is virt_to_page() legal for consistent mem? */
 	/* Reserve */
 	for (addr = (unsigned long)dmah->vaddr, sz = size;
 	     sz > 0; addr += PAGE_SIZE, sz -= PAGE_SIZE) {
 		SetPageReserved(virt_to_page(addr));
 	}
-#endif
 
 	return dmah;
 }
@@ -132,10 +127,8 @@ EXPORT_SYMBOL(drm_pci_alloc);
  */
 void __drm_pci_free(drm_device_t * dev, drm_dma_handle_t *dmah)
 {
-#if 1
 	unsigned long addr;
 	size_t sz;
-#endif
 #ifdef DRM_DEBUG_MEMORY
 	int area = DRM_MEM_DMA;
 	int alloc_count;
@@ -147,21 +140,14 @@ void __drm_pci_free(drm_device_t * dev, drm_dma_handle_t *dmah)
 		DRM_MEM_ERROR(area, "Attempt to free address 0\n");
 #endif
 	} else {
-#if 1
 		/* XXX - Is virt_to_page() legal for consistent mem? */
 		/* Unreserve */
 		for (addr = (unsigned long)dmah->vaddr, sz = dmah->size;
 		     sz > 0; addr += PAGE_SIZE, sz -= PAGE_SIZE) {
 			ClearPageReserved(virt_to_page(addr));
 		}
-#endif
-#if 0
-		pci_free_consistent(dev->pdev, dmah->size, dmah->vaddr,
-				    dmah->busaddr);
-#else
 		dma_free_coherent(&dev->pdev->dev, dmah->size, dmah->vaddr,
 				  dmah->busaddr);
-#endif
 	}
 
 #ifdef DRM_DEBUG_MEMORY
@@ -181,7 +167,7 @@ void __drm_pci_free(drm_device_t * dev, drm_dma_handle_t *dmah)
 }
 
 /**
- * \brief Free a PCI consistent memory block.
+ * \brief Free a PCI consistent memory block
  */
 void drm_pci_free(drm_device_t * dev, drm_dma_handle_t *dmah)
 {
diff --git a/linux-core/drm_proc.c b/linux-core/drm_proc.c
index 014486c1..512a8f75 100644
--- a/linux-core/drm_proc.c
+++ b/linux-core/drm_proc.c
@@ -258,7 +258,7 @@ static int drm__vm_info(char *buf, char **start, off_t offset, int request,
 }
 
 /**
- * Simply calls _vm_info() while holding the drm_device::struct_sem lock.
+ * Simply calls _vm_info() while holding the drm_device::struct_mutex lock.
  */
 static int drm_vm_info(char *buf, char **start, off_t offset, int request,
 		       int *eof, void *data)
@@ -331,7 +331,7 @@ static int drm__queues_info(char *buf, char **start, off_t offset,
 }
 
 /**
- * Simply calls _queues_info() while holding the drm_device::struct_sem lock.
+ * Simply calls _queues_info() while holding the drm_device::struct_mutex lock.
  */
 static int drm_queues_info(char *buf, char **start, off_t offset, int request,
 			   int *eof, void *data)
@@ -403,7 +403,7 @@ static int drm__bufs_info(char *buf, char **start, off_t offset, int request,
 }
 
 /**
- * Simply calls _bufs_info() while holding the drm_device::struct_sem lock.
+ * Simply calls _bufs_info() while holding the drm_device::struct_mutex lock.
  */
 static int drm_bufs_info(char *buf, char **start, off_t offset, int request,
 			 int *eof, void *data)
@@ -459,7 +459,7 @@ static int drm__clients_info(char *buf, char **start, off_t offset,
 }
 
 /**
- * Simply calls _clients_info() while holding the drm_device::struct_sem lock.
+ * Simply calls _clients_info() while holding the drm_device::struct_mutex lock.
  */
 static int drm_clients_info(char *buf, char **start, off_t offset,
 			    int request, int *eof, void *data)
diff --git a/linux-core/drm_sman.c b/linux-core/drm_sman.c
index b92f0ee7..425c8233 100644
--- a/linux-core/drm_sman.c
+++ b/linux-core/drm_sman.c
@@ -114,7 +114,7 @@ static void drm_sman_mm_destroy(void *private)
 	drm_free(mm, sizeof(*mm), DRM_MEM_MM);
 }
 
-unsigned long drm_sman_mm_offset(void *private, void *ref)
+static unsigned long drm_sman_mm_offset(void *private, void *ref)
 {
 	drm_mm_node_t *node = (drm_mm_node_t *) ref;
 	return node->start;
diff --git a/linux-core/drm_stub.c b/linux-core/drm_stub.c
index e4d61dcf..bdc36552 100644
--- a/linux-core/drm_stub.c
+++ b/linux-core/drm_stub.c
@@ -76,10 +76,10 @@ static int drm_fill_in_dev(drm_device_t * dev, struct pci_dev *pdev,
 	if (dev->maplist == NULL)
 		return -ENOMEM;
 	INIT_LIST_HEAD(&dev->maplist->head);
-        if (drm_ht_create(&dev->map_hash, 12)) {
-                drm_free(dev->maplist, sizeof(*dev->maplist), DRM_MEM_MAPS);
-                return -ENOMEM;
-        }
+	if (drm_ht_create(&dev->map_hash, 12)) {
+		drm_free(dev->maplist, sizeof(*dev->maplist), DRM_MEM_MAPS);
+		return -ENOMEM;
+	}
 
 	/* the DRM has 6 counters */
 	dev->counters = 6;
diff --git a/linux-core/drm_vm.c b/linux-core/drm_vm.c
index cf3bc3cf..0391395d 100644
--- a/linux-core/drm_vm.c
+++ b/linux-core/drm_vm.c
@@ -59,7 +59,7 @@ static __inline__ struct page *drm_do_vm_nopage(struct vm_area_struct *vma,
 	drm_device_t *dev = priv->head->dev;
 	drm_map_t *map = NULL;
 	drm_map_list_t *r_list;
-        drm_hash_item_t *hash;
+	drm_hash_item_t *hash;
 
 	/*
 	 * Find the right map
@@ -70,10 +70,10 @@ static __inline__ struct page *drm_do_vm_nopage(struct vm_area_struct *vma,
 	if (!dev->agp || !dev->agp->cant_use_aperture)
 		goto vm_nopage_error;
 
-        if (drm_ht_find_item(&dev->map_hash, VM_OFFSET(vma), &hash)) 
-                goto vm_nopage_error;
+	if (drm_ht_find_item(&dev->map_hash, VM_OFFSET(vma), &hash)) 
+		goto vm_nopage_error;
 
-        r_list = drm_hash_entry(hash, drm_map_list_t, hash);
+	r_list = drm_hash_entry(hash, drm_map_list_t, hash);
 	map = r_list->map;
 
 	if (map && map->type == _DRM_AGP) {
@@ -554,7 +554,7 @@ int drm_mmap(struct file *filp, struct vm_area_struct *vma)
 	drm_device_t *dev = priv->head->dev;
 	drm_map_t *map = NULL;
 	unsigned long offset = 0;
-        drm_hash_item_t *hash;
+	drm_hash_item_t *hash;
 
 	DRM_DEBUG("start = 0x%lx, end = 0x%lx, offset = 0x%lx\n",
 		  vma->vm_start, vma->vm_end, VM_OFFSET(vma));
@@ -574,11 +574,11 @@ int drm_mmap(struct file *filp, struct vm_area_struct *vma)
 	    )
 		return drm_mmap_dma(filp, vma);
 
-        if (drm_ht_find_item(&dev->map_hash, VM_OFFSET(vma), &hash)) {
-                DRM_ERROR("Could not find map\n");
+	if (drm_ht_find_item(&dev->map_hash, VM_OFFSET(vma), &hash)) {
+		DRM_ERROR("Could not find map\n");
 		return -EINVAL;
-        }
-        
+	}
+
 	map = drm_hash_entry(hash,drm_map_list_t, hash)->map;
 
 	if (!map || ((map->flags & _DRM_RESTRICTED) && !capable(CAP_SYS_ADMIN)))
diff --git a/linux-core/i810_drv.h b/linux-core/i810_drv.h
index e8cf3ff6..bb7358d2 100644
--- a/linux-core/i810_drv.h
+++ b/linux-core/i810_drv.h
@@ -141,8 +141,8 @@ extern int i810_max_ioctl;
                         volatile char *virt;
 
 #define BEGIN_LP_RING(n) do {						\
-	if (I810_VERBOSE)                                               \
-           DRM_DEBUG("BEGIN_LP_RING(%d) in %s\n", n, __FUNCTION__);	\
+	if (I810_VERBOSE)						\
+		DRM_DEBUG("BEGIN_LP_RING(%d) in %s\n", n, __FUNCTION__);\
 	if (dev_priv->ring.space < n*4)					\
 		i810_wait_ring(dev, n*4);				\
 	dev_priv->ring.space -= n*4;					\
@@ -151,17 +151,17 @@ extern int i810_max_ioctl;
 	virt = dev_priv->ring.virtual_start;				\
 } while (0)
 
-#define ADVANCE_LP_RING() do {				        \
+#define ADVANCE_LP_RING() do {					\
 	if (I810_VERBOSE) DRM_DEBUG("ADVANCE_LP_RING\n");    	\
-	dev_priv->ring.tail = outring;		        	\
-	I810_WRITE(LP_RING + RING_TAIL, outring);	        \
+	dev_priv->ring.tail = outring;				\
+	I810_WRITE(LP_RING + RING_TAIL, outring);		\
 } while(0)
 
-#define OUT_RING(n) do {  				                \
+#define OUT_RING(n) do {  						\
 	if (I810_VERBOSE) DRM_DEBUG("   OUT_RING %x\n", (int)(n));	\
-	*(volatile unsigned int *)(virt + outring) = n;	                \
-	outring += 4;					                \
-	outring &= ringmask;			                        \
+	*(volatile unsigned int *)(virt + outring) = n;			\
+	outring += 4;							\
+	outring &= ringmask;						\
 } while (0)
 
 #define GFX_OP_USER_INTERRUPT 		((0<<29)|(2<<23))
@@ -193,7 +193,7 @@ extern int i810_max_ioctl;
 #define HEAD_WRAP_ONE       	0x00200000
 #define HEAD_ADDR           	0x001FFFFC
 #define RING_START     		0x08
-#define START_ADDR          	0x00FFFFF8
+#define START_ADDR        	0x00FFFFF8
 #define RING_LEN       		0x0C
 #define RING_NR_PAGES       	0x000FF000
 #define RING_REPORT_MASK    	0x00000006
diff --git a/linux-core/sis_drv.c b/linux-core/sis_drv.c
index 3fdbd88e..36a525dc 100644
--- a/linux-core/sis_drv.c
+++ b/linux-core/sis_drv.c
@@ -40,15 +40,15 @@ static struct pci_device_id pciidlist[] = {
 static int sis_driver_load(drm_device_t *dev, unsigned long chipset)
 {
 	drm_sis_private_t *dev_priv;
-        int ret;
+	int ret;
 
 	dev_priv = drm_calloc(1, sizeof(drm_sis_private_t), DRM_MEM_DRIVER);
 	if (dev_priv == NULL)
 		return DRM_ERR(ENOMEM);
 
 	dev->dev_private = (void *)dev_priv;
-        dev_priv->chipset = chipset;
-        ret = drm_sman_init(&dev_priv->sman, 2, 12, 8);
+	dev_priv->chipset = chipset;
+	ret = drm_sman_init(&dev_priv->sman, 2, 12, 8);
 	if (ret) {
 		drm_free(dev_priv, sizeof(dev_priv), DRM_MEM_DRIVER);
 	}
@@ -60,7 +60,7 @@ static int sis_driver_unload(drm_device_t *dev)
 {
 	drm_sis_private_t *dev_priv = dev->dev_private;
 
-        drm_sman_takedown(&dev_priv->sman);
+	drm_sman_takedown(&dev_priv->sman);
 	drm_free(dev_priv, sizeof(*dev_priv), DRM_MEM_DRIVER);
 
 	return 0;
@@ -70,10 +70,10 @@ static int sis_driver_unload(drm_device_t *dev)
 static int probe(struct pci_dev *pdev, const struct pci_device_id *ent);
 static struct drm_driver driver = {
 	.driver_features = DRIVER_USE_AGP | DRIVER_USE_MTRR,
-        .load = sis_driver_load,
-        .unload = sis_driver_unload,
+	.load = sis_driver_load,
+	.unload = sis_driver_unload,
 	.context_dtor = NULL,
-        .dma_quiescent = sis_idle,
+	.dma_quiescent = sis_idle,
 	.reclaim_buffers = NULL,
 	.reclaim_buffers_locked = sis_reclaim_buffers_locked,
 	.lastclose = sis_lastclose,
diff --git a/linux-core/via_dmablit.c b/linux-core/via_dmablit.c
index 4a3a7524..61e6a102 100644
--- a/linux-core/via_dmablit.c
+++ b/linux-core/via_dmablit.c
@@ -121,19 +121,18 @@ via_map_blit_for_device(struct pci_dev *pdev,
 		
 		while (line_len > 0) {
 
-                        remaining_len = min(PAGE_SIZE-VIA_PGOFF(cur_mem), line_len);
+			remaining_len = min(PAGE_SIZE-VIA_PGOFF(cur_mem), line_len);
 			line_len -= remaining_len;
 
 			if (mode == 1) {
-                                desc_ptr->mem_addr = 
-					dma_map_page(&pdev->dev, 
-						     vsg->pages[VIA_PFN(cur_mem) - 
-								VIA_PFN(first_addr)],
-						     VIA_PGOFF(cur_mem), remaining_len, 
-						     vsg->direction);
-                                desc_ptr->dev_addr = cur_fb;
+				desc_ptr->mem_addr = dma_map_page(&pdev->dev, 
+					vsg->pages[VIA_PFN(cur_mem) - 
+					VIA_PFN(first_addr)],
+					VIA_PGOFF(cur_mem), remaining_len, 
+					vsg->direction);
+				desc_ptr->dev_addr = cur_fb;
 				
-                                desc_ptr->size = remaining_len;
+				desc_ptr->size = remaining_len;
 				desc_ptr->next = (uint32_t) next;
 				next = dma_map_single(&pdev->dev, desc_ptr, sizeof(*desc_ptr), 
 						      DMA_TO_DEVICE);
@@ -167,7 +166,7 @@ via_map_blit_for_device(struct pci_dev *pdev,
  */
 
 
-void
+static void
 via_free_sg_info(struct pci_dev *pdev, drm_via_sg_info_t *vsg) 
 {
 	struct page *page;
@@ -648,13 +647,13 @@ via_build_sg_info(drm_device_t *dev, drm_via_sg_info_t *vsg, drm_via_dmablit_t *
 	if ((((unsigned long)xfer->mem_addr & 3) != ((unsigned long)xfer->fb_addr & 3)) ||
 	    ((xfer->num_lines > 1) && ((xfer->mem_stride & 3) != (xfer->fb_stride & 3)))) {
 		DRM_ERROR("Invalid DRM bitblt alignment.\n");
-	        return DRM_ERR(EINVAL);
+		return DRM_ERR(EINVAL);
 	}
 #else
 	if ((((unsigned long)xfer->mem_addr & 15) || ((unsigned long)xfer->fb_addr & 3)) ||
 	    ((xfer->num_lines > 1) && ((xfer->mem_stride & 15) || (xfer->fb_stride & 3)))) {
 		DRM_ERROR("Invalid DRM bitblt alignment.\n");
-	        return DRM_ERR(EINVAL);
+		return DRM_ERR(EINVAL);
 	}	
 #endif
 
@@ -732,7 +731,7 @@ via_dmablit(drm_device_t *dev, drm_via_dmablit_t *xfer)
 	drm_via_private_t *dev_priv = (drm_via_private_t *)dev->dev_private;
 	drm_via_sg_info_t *vsg;
 	drm_via_blitq_t *blitq;
-        int ret;
+	int ret;
 	int engine;
 	unsigned long irqsave;
 
diff --git a/linux-core/via_dmablit.h b/linux-core/via_dmablit.h
index 64863917..f6ae03ec 100644
--- a/linux-core/via_dmablit.h
+++ b/linux-core/via_dmablit.h
@@ -30,6 +30,8 @@
 #ifndef _VIA_DMABLIT_H
 #define _VIA_DMABLIT_H
 
+#include <linux/dma-mapping.h>
+
 #define VIA_NUM_BLIT_ENGINES 2
 #define VIA_NUM_BLIT_SLOTS 8
 
@@ -43,12 +45,12 @@ typedef struct _drm_via_sg_info {
 	int num_desc;
 	enum dma_data_direction direction;
 	unsigned char *bounce_buffer;
-        dma_addr_t chain_start;
+	dma_addr_t chain_start;
 	uint32_t free_on_sequence;
-        unsigned int descriptors_per_page;
+	unsigned int descriptors_per_page;
 	int aborted;
 	enum {
-	        dr_via_device_mapped,
+		dr_via_device_mapped,
 		dr_via_desc_pages_alloc,
 		dr_via_pages_locked,
 		dr_via_pages_alloc,
@@ -66,7 +68,7 @@ typedef struct _drm_via_blitq {
 	unsigned num_free;
 	unsigned num_outstanding;
 	unsigned long end;  
-        int aborting;
+	int aborting;
 	int is_active;
 	drm_via_sg_info_t *blits[VIA_NUM_BLIT_SLOTS];
 	spinlock_t blit_lock;