drm: lindent the drm directory.

I've been threatening this for a while, so no point hanging around.
This lindents the DRM code which was always really bad in tabbing department.
I've also fixed some misnamed files in comments and removed some trailing
whitespace.
Signed-off-by: NDave Airlie <airlied@linux.ie>

drivers/char/drm/ati_pcigart.c

 /**
- * \file ati_pcigart.h 
+ * \file ati_pcigart.c
  * ATI PCI GART support
  *
  * \author Gareth Hughes <gareth@valinux.com>
@@ -52,87 +52,91 @@
 # define ATI_MAX_PCIGART_PAGES		8192	/**< 32 MB aperture, 4K pages */
 # define ATI_PCIGART_PAGE_SIZE		4096	/**< PCI GART page size */
 
-static unsigned long drm_ati_alloc_pcigart_table( void )
+static unsigned long drm_ati_alloc_pcigart_table(void)
 {
 	unsigned long address;
 	struct page *page;
 	int i;
-	DRM_DEBUG( "%s\n", __FUNCTION__ );
+	DRM_DEBUG("%s\n", __FUNCTION__);
 
-	address = __get_free_pages( GFP_KERNEL, ATI_PCIGART_TABLE_ORDER );
-	if ( address == 0UL ) {
+	address = __get_free_pages(GFP_KERNEL, ATI_PCIGART_TABLE_ORDER);
+	if (address == 0UL) {
 		return 0;
 	}
 
-	page = virt_to_page( address );
+	page = virt_to_page(address);
 
-	for ( i = 0 ; i < ATI_PCIGART_TABLE_PAGES ; i++, page++ ) {
+	for (i = 0; i < ATI_PCIGART_TABLE_PAGES; i++, page++) {
 		get_page(page);
-		SetPageReserved( page );
+		SetPageReserved(page);
 	}
 
-	DRM_DEBUG( "%s: returning 0x%08lx\n", __FUNCTION__, address );
+	DRM_DEBUG("%s: returning 0x%08lx\n", __FUNCTION__, address);
 	return address;
 }
 
-static void drm_ati_free_pcigart_table( unsigned long address )
+static void drm_ati_free_pcigart_table(unsigned long address)
 {
 	struct page *page;
 	int i;
-	DRM_DEBUG( "%s\n", __FUNCTION__ );
+	DRM_DEBUG("%s\n", __FUNCTION__);
 
-	page = virt_to_page( address );
+	page = virt_to_page(address);
 
-	for ( i = 0 ; i < ATI_PCIGART_TABLE_PAGES ; i++, page++ ) {
+	for (i = 0; i < ATI_PCIGART_TABLE_PAGES; i++, page++) {
 		__put_page(page);
-		ClearPageReserved( page );
+		ClearPageReserved(page);
 	}
 
-	free_pages( address, ATI_PCIGART_TABLE_ORDER );
+	free_pages(address, ATI_PCIGART_TABLE_ORDER);
 }
 
-int drm_ati_pcigart_cleanup(drm_device_t *dev, drm_ati_pcigart_info *gart_info)
+int drm_ati_pcigart_cleanup(drm_device_t * dev,
+			    drm_ati_pcigart_info * gart_info)
 {
 	drm_sg_mem_t *entry = dev->sg;
 	unsigned long pages;
 	int i;
 
 	/* we need to support large memory configurations */
-	if ( !entry ) {
-		DRM_ERROR( "no scatter/gather memory!\n" );
+	if (!entry) {
+		DRM_ERROR("no scatter/gather memory!\n");
 		return 0;
 	}
 
 	if (gart_info->bus_addr) {
-		if (gart_info->gart_table_location==DRM_ATI_GART_MAIN) {
+		if (gart_info->gart_table_location == DRM_ATI_GART_MAIN) {
 			pci_unmap_single(dev->pdev, gart_info->bus_addr,
 					 ATI_PCIGART_TABLE_PAGES * PAGE_SIZE,
 					 PCI_DMA_TODEVICE);
 		}
 
-		pages = ( entry->pages <= ATI_MAX_PCIGART_PAGES )
-		        ? entry->pages : ATI_MAX_PCIGART_PAGES;
+		pages = (entry->pages <= ATI_MAX_PCIGART_PAGES)
+		    ? entry->pages : ATI_MAX_PCIGART_PAGES;
 
-		for ( i = 0 ; i < pages ; i++ ) {
-			if ( !entry->busaddr[i] ) break;
+		for (i = 0; i < pages; i++) {
+			if (!entry->busaddr[i])
+				break;
 			pci_unmap_single(dev->pdev, entry->busaddr[i],
 					 PAGE_SIZE, PCI_DMA_TODEVICE);
 		}
-		
- 		if (gart_info->gart_table_location==DRM_ATI_GART_MAIN)
-			gart_info->bus_addr=0;
+
+		if (gart_info->gart_table_location == DRM_ATI_GART_MAIN)
+			gart_info->bus_addr = 0;
 	}
 
- 	if (gart_info->gart_table_location==DRM_ATI_GART_MAIN && gart_info->addr) {
+	if (gart_info->gart_table_location == DRM_ATI_GART_MAIN
+	    && gart_info->addr) {
 		drm_ati_free_pcigart_table(gart_info->addr);
-		gart_info->addr=0;
+		gart_info->addr = 0;
 	}
 
 	return 1;
 }
+
 EXPORT_SYMBOL(drm_ati_pcigart_cleanup);
 
-int drm_ati_pcigart_init(drm_device_t *dev, drm_ati_pcigart_info *gart_info)
+int drm_ati_pcigart_init(drm_device_t * dev, drm_ati_pcigart_info * gart_info)
 {
 	drm_sg_mem_t *entry = dev->sg;
 	unsigned long address = 0;
@@ -140,58 +144,56 @@ int drm_ati_pcigart_init(drm_device_t *dev, drm_ati_pcigart_info *gart_info)
 	u32 *pci_gart, page_base, bus_address = 0;
 	int i, j, ret = 0;
 
-	if ( !entry ) {
-		DRM_ERROR( "no scatter/gather memory!\n" );
+	if (!entry) {
+		DRM_ERROR("no scatter/gather memory!\n");
 		goto done;
 	}
 
-	if (gart_info->gart_table_location == DRM_ATI_GART_MAIN)
-	{
+	if (gart_info->gart_table_location == DRM_ATI_GART_MAIN) {
 		DRM_DEBUG("PCI: no table in VRAM: using normal RAM\n");
-		
+
 		address = drm_ati_alloc_pcigart_table();
-		if ( !address ) {
-			DRM_ERROR( "cannot allocate PCI GART page!\n" );
+		if (!address) {
+			DRM_ERROR("cannot allocate PCI GART page!\n");
 			goto done;
 		}
-		
-		if ( !dev->pdev ) {
-			DRM_ERROR( "PCI device unknown!\n" );
+
+		if (!dev->pdev) {
+			DRM_ERROR("PCI device unknown!\n");
 			goto done;
 		}
 
 		bus_address = pci_map_single(dev->pdev, (void *)address,
-					     ATI_PCIGART_TABLE_PAGES * PAGE_SIZE,
-					     PCI_DMA_TODEVICE);
+					     ATI_PCIGART_TABLE_PAGES *
+					     PAGE_SIZE, PCI_DMA_TODEVICE);
 		if (bus_address == 0) {
-			DRM_ERROR( "unable to map PCIGART pages!\n" );
-			drm_ati_free_pcigart_table( address );
+			DRM_ERROR("unable to map PCIGART pages!\n");
+			drm_ati_free_pcigart_table(address);
 			address = 0;
 			goto done;
 		}
-	}
-	else
-	{
+	} else {
 		address = gart_info->addr;
 		bus_address = gart_info->bus_addr;
- 		DRM_DEBUG("PCI: Gart Table: VRAM %08X mapped at %08lX\n", bus_address, address);
+		DRM_DEBUG("PCI: Gart Table: VRAM %08X mapped at %08lX\n",
+			  bus_address, address);
 	}
 
-	pci_gart = (u32 *)address;
+	pci_gart = (u32 *) address;
 
-	pages = ( entry->pages <= ATI_MAX_PCIGART_PAGES )
-		? entry->pages : ATI_MAX_PCIGART_PAGES;
+	pages = (entry->pages <= ATI_MAX_PCIGART_PAGES)
+	    ? entry->pages : ATI_MAX_PCIGART_PAGES;
 
-	memset( pci_gart, 0, ATI_MAX_PCIGART_PAGES * sizeof(u32) );
+	memset(pci_gart, 0, ATI_MAX_PCIGART_PAGES * sizeof(u32));
 
-	for ( i = 0 ; i < pages ; i++ ) {
+	for (i = 0; i < pages; i++) {
 		/* we need to support large memory configurations */
 		entry->busaddr[i] = pci_map_single(dev->pdev,
-					   page_address( entry->pagelist[i] ),
-					   PAGE_SIZE,
-					   PCI_DMA_TODEVICE);
+						   page_address(entry->
+								pagelist[i]),
+						   PAGE_SIZE, PCI_DMA_TODEVICE);
 		if (entry->busaddr[i] == 0) {
-			DRM_ERROR( "unable to map PCIGART pages!\n" );
+			DRM_ERROR("unable to map PCIGART pages!\n");
 			drm_ati_pcigart_cleanup(dev, gart_info);
 			address = 0;
 			bus_address = 0;
@@ -201,9 +203,9 @@ int drm_ati_pcigart_init(drm_device_t *dev, drm_ati_pcigart_info *gart_info)
 
 		for (j = 0; j < (PAGE_SIZE / ATI_PCIGART_PAGE_SIZE); j++) {
 			if (gart_info->is_pcie)
-				*pci_gart = (cpu_to_le32(page_base)>>8) | 0xc;
+				*pci_gart = (cpu_to_le32(page_base) >> 8) | 0xc;
 			else
-				*pci_gart++ = cpu_to_le32( page_base );
+				*pci_gart++ = cpu_to_le32(page_base);
 			page_base += ATI_PCIGART_PAGE_SIZE;
 		}
 	}
@@ -216,9 +218,10 @@ int drm_ati_pcigart_init(drm_device_t *dev, drm_ati_pcigart_info *gart_info)
 	mb();
 #endif
 
-done:
+      done:
 	gart_info->addr = address;
- 	gart_info->bus_addr = bus_address;
+	gart_info->bus_addr = bus_address;
 	return ret;
 }
+
 EXPORT_SYMBOL(drm_ati_pcigart_init);

drivers/char/drm/drm.h

 /**
- * \file drm.h 
+ * \file drm.h
  * Header for the Direct Rendering Manager
- * 
+ *
  * \author Rickard E. (Rik) Faith <faith@valinux.com>
  *
  * \par Acknowledgments:
@@ -33,7 +33,6 @@
  * OTHER DEALINGS IN THE SOFTWARE.
  */
 
-
 #ifndef _DRM_H_
 #define _DRM_H_
 
@@ -56,7 +55,7 @@
 #define ioctl(a,b,c)		xf86ioctl(a,b,c)
 #else
 #include <sys/ioccom.h>
-#endif /* __FreeBSD__ && xf86ioctl */
+#endif				/* __FreeBSD__ && xf86ioctl */
 #define DRM_IOCTL_NR(n)		((n) & 0xff)
 #define DRM_IOC_VOID		IOC_VOID
 #define DRM_IOC_READ		IOC_OUT
@@ -97,16 +96,14 @@
 #define _DRM_LOCK_IS_CONT(lock)	   ((lock) & _DRM_LOCK_CONT)
 #define _DRM_LOCKING_CONTEXT(lock) ((lock) & ~(_DRM_LOCK_HELD|_DRM_LOCK_CONT))
 
-
-typedef unsigned int  drm_handle_t;
-typedef unsigned int  drm_context_t;
-typedef unsigned int  drm_drawable_t;
-typedef unsigned int  drm_magic_t;
-
+typedef unsigned int drm_handle_t;
+typedef unsigned int drm_context_t;
+typedef unsigned int drm_drawable_t;
+typedef unsigned int drm_magic_t;
 
 /**
  * Cliprect.
- * 
+ *
  * \warning: If you change this structure, make sure you change
  * XF86DRIClipRectRec in the server as well
  *
@@ -114,22 +111,21 @@ typedef unsigned int  drm_magic_t;
  * backwards-compatibility reasons.
  */
 typedef struct drm_clip_rect {
-	unsigned short	x1;
-	unsigned short	y1;
-	unsigned short	x2;
-	unsigned short	y2;
+	unsigned short x1;
+	unsigned short y1;
+	unsigned short x2;
+	unsigned short y2;
 } drm_clip_rect_t;
 
-
 /**
  * Texture region,
  */
 typedef struct drm_tex_region {
-	unsigned char	next;
-	unsigned char	prev;
-	unsigned char	in_use;
-	unsigned char	padding;
-	unsigned int	age;
+	unsigned char next;
+	unsigned char prev;
+	unsigned char in_use;
+	unsigned char padding;
+	unsigned int age;
 } drm_tex_region_t;
 
 /**
@@ -141,28 +137,26 @@ typedef struct drm_tex_region {
  */
 typedef struct drm_hw_lock {
 	__volatile__ unsigned int lock;		/**< lock variable */
-	char			  padding[60];	/**< Pad to cache line */
+	char padding[60];			/**< Pad to cache line */
 } drm_hw_lock_t;
 
-
 /**
  * DRM_IOCTL_VERSION ioctl argument type.
- * 
+ *
  * \sa drmGetVersion().
  */
 typedef struct drm_version {
-	int    version_major;	  /**< Major version */
-	int    version_minor;	  /**< Minor version */
-	int    version_patchlevel;/**< Patch level */
+	int version_major;	  /**< Major version */
+	int version_minor;	  /**< Minor version */
+	int version_patchlevel;	  /**< Patch level */
 	size_t name_len;	  /**< Length of name buffer */
-	char   __user *name;	  /**< Name of driver */
+	char __user *name;	  /**< Name of driver */
 	size_t date_len;	  /**< Length of date buffer */
-	char   __user *date;	  /**< User-space buffer to hold date */
+	char __user *date;	  /**< User-space buffer to hold date */
 	size_t desc_len;	  /**< Length of desc buffer */
-	char   __user *desc;	  /**< User-space buffer to hold desc */
+	char __user *desc;	  /**< User-space buffer to hold desc */
 } drm_version_t;
 
-
 /**
  * DRM_IOCTL_GET_UNIQUE ioctl argument type.
  *
@@ -170,21 +164,18 @@ typedef struct drm_version {
  */
 typedef struct drm_unique {
 	size_t unique_len;	  /**< Length of unique */
-	char   __user *unique;	  /**< Unique name for driver instantiation */
+	char __user *unique;	  /**< Unique name for driver instantiation */
 } drm_unique_t;
 
-
 typedef struct drm_list {
-	int		 count;	  /**< Length of user-space structures */
-	drm_version_t	 __user *version;
+	int count;		  /**< Length of user-space structures */
+	drm_version_t __user *version;
 } drm_list_t;
 
-
 typedef struct drm_block {
-	int		 unused;
+	int unused;
 } drm_block_t;
 
-
 /**
  * DRM_IOCTL_CONTROL ioctl argument type.
  *
@@ -196,44 +187,40 @@ typedef struct drm_control {
 		DRM_RM_COMMAND,
 		DRM_INST_HANDLER,
 		DRM_UNINST_HANDLER
-	}		 func;
-	int		 irq;
+	} func;
+	int irq;
 } drm_control_t;
 
-
 /**
  * Type of memory to map.
  */
 typedef enum drm_map_type {
-	_DRM_FRAME_BUFFER   = 0,  /**< WC (no caching), no core dump */
-	_DRM_REGISTERS	    = 1,  /**< no caching, no core dump */
-	_DRM_SHM	    = 2,  /**< shared, cached */
-	_DRM_AGP            = 3,  /**< AGP/GART */
+	_DRM_FRAME_BUFFER = 0,	  /**< WC (no caching), no core dump */
+	_DRM_REGISTERS = 1,	  /**< no caching, no core dump */
+	_DRM_SHM = 2,		  /**< shared, cached */
+	_DRM_AGP = 3,		  /**< AGP/GART */
 	_DRM_SCATTER_GATHER = 4,  /**< Scatter/gather memory for PCI DMA */
-	_DRM_CONSISTENT     = 5,  /**< Consistent memory for PCI DMA */
+	_DRM_CONSISTENT = 5,	  /**< Consistent memory for PCI DMA */
 } drm_map_type_t;
 
-
 /**
  * Memory mapping flags.
  */
 typedef enum drm_map_flags {
-	_DRM_RESTRICTED	     = 0x01, /**< Cannot be mapped to user-virtual */
-	_DRM_READ_ONLY	     = 0x02,
-	_DRM_LOCKED	     = 0x04, /**< shared, cached, locked */
-	_DRM_KERNEL	     = 0x08, /**< kernel requires access */
+	_DRM_RESTRICTED = 0x01,	     /**< Cannot be mapped to user-virtual */
+	_DRM_READ_ONLY = 0x02,
+	_DRM_LOCKED = 0x04,	     /**< shared, cached, locked */
+	_DRM_KERNEL = 0x08,	     /**< kernel requires access */
 	_DRM_WRITE_COMBINING = 0x10, /**< use write-combining if available */
-	_DRM_CONTAINS_LOCK   = 0x20, /**< SHM page that contains lock */
-	_DRM_REMOVABLE	     = 0x40  /**< Removable mapping */
+	_DRM_CONTAINS_LOCK = 0x20,   /**< SHM page that contains lock */
+	_DRM_REMOVABLE = 0x40	     /**< Removable mapping */
 } drm_map_flags_t;
 
-
 typedef struct drm_ctx_priv_map {
-	unsigned int	ctx_id;  /**< Context requesting private mapping */
-	void		*handle; /**< Handle of map */
+	unsigned int ctx_id;	 /**< Context requesting private mapping */
+	void *handle;		 /**< Handle of map */
 } drm_ctx_priv_map_t;
 
-
 /**
  * DRM_IOCTL_GET_MAP, DRM_IOCTL_ADD_MAP and DRM_IOCTL_RM_MAP ioctls
  * argument type.
@@ -241,30 +228,28 @@ typedef struct drm_ctx_priv_map {
  * \sa drmAddMap().
  */
 typedef struct drm_map {
-	unsigned long	offset;	 /**< Requested physical address (0 for SAREA)*/
-	unsigned long	size;	 /**< Requested physical size (bytes) */
-	drm_map_type_t	type;	 /**< Type of memory to map */
+	unsigned long offset;	 /**< Requested physical address (0 for SAREA)*/
+	unsigned long size;	 /**< Requested physical size (bytes) */
+	drm_map_type_t type;	 /**< Type of memory to map */
 	drm_map_flags_t flags;	 /**< Flags */
-	void		*handle; /**< User-space: "Handle" to pass to mmap() */
+	void *handle;		 /**< User-space: "Handle" to pass to mmap() */
 				 /**< Kernel-space: kernel-virtual address */
-	int		mtrr;	 /**< MTRR slot used */
-				 /*   Private data */
+	int mtrr;		 /**< MTRR slot used */
+	/*   Private data */
 } drm_map_t;
 
-
 /**
  * DRM_IOCTL_GET_CLIENT ioctl argument type.
  */
 typedef struct drm_client {
-	int		idx;	/**< Which client desired? */
-	int		auth;	/**< Is client authenticated? */
-	unsigned long	pid;	/**< Process ID */
-	unsigned long	uid;	/**< User ID */
-	unsigned long	magic;	/**< Magic */
-	unsigned long	iocs;	/**< Ioctl count */
+	int idx;		/**< Which client desired? */
+	int auth;		/**< Is client authenticated? */
+	unsigned long pid;	/**< Process ID */
+	unsigned long uid;	/**< User ID */
+	unsigned long magic;	/**< Magic */
+	unsigned long iocs;	/**< Ioctl count */
 } drm_client_t;
 
-
 typedef enum {
 	_DRM_STAT_LOCK,
 	_DRM_STAT_OPENS,
@@ -282,63 +267,58 @@ typedef enum {
 	_DRM_STAT_DMA,		/**< DMA */
 	_DRM_STAT_SPECIAL,	/**< Special DMA (e.g., priority or polled) */
 	_DRM_STAT_MISSED	/**< Missed DMA opportunity */
-
-				/* Add to the *END* of the list */
+	    /* Add to the *END* of the list */
 } drm_stat_type_t;
 
-
 /**
  * DRM_IOCTL_GET_STATS ioctl argument type.
  */
 typedef struct drm_stats {
 	unsigned long count;
 	struct {
-		unsigned long   value;
+		unsigned long value;
 		drm_stat_type_t type;
 	} data[15];
 } drm_stats_t;
 
-
 /**
  * Hardware locking flags.
  */
 typedef enum drm_lock_flags {
-	_DRM_LOCK_READY	     = 0x01, /**< Wait until hardware is ready for DMA */
-	_DRM_LOCK_QUIESCENT  = 0x02, /**< Wait until hardware quiescent */
-	_DRM_LOCK_FLUSH	     = 0x04, /**< Flush this context's DMA queue first */
-	_DRM_LOCK_FLUSH_ALL  = 0x08, /**< Flush all DMA queues first */
-				/* These *HALT* flags aren't supported yet
-				   -- they will be used to support the
-				   full-screen DGA-like mode. */
+	_DRM_LOCK_READY = 0x01,	     /**< Wait until hardware is ready for DMA */
+	_DRM_LOCK_QUIESCENT = 0x02,  /**< Wait until hardware quiescent */
+	_DRM_LOCK_FLUSH = 0x04,	     /**< Flush this context's DMA queue first */
+	_DRM_LOCK_FLUSH_ALL = 0x08,  /**< Flush all DMA queues first */
+	/* These *HALT* flags aren't supported yet
+	   -- they will be used to support the
+	   full-screen DGA-like mode. */
 	_DRM_HALT_ALL_QUEUES = 0x10, /**< Halt all current and future queues */
 	_DRM_HALT_CUR_QUEUES = 0x20  /**< Halt all current queues */
 } drm_lock_flags_t;
 
-
 /**
  * DRM_IOCTL_LOCK, DRM_IOCTL_UNLOCK and DRM_IOCTL_FINISH ioctl argument type.
- * 
+ *
  * \sa drmGetLock() and drmUnlock().
  */
 typedef struct drm_lock {
-	int		 context;
+	int context;
 	drm_lock_flags_t flags;
 } drm_lock_t;
 
-
 /**
  * DMA flags
  *
- * \warning 
+ * \warning
  * These values \e must match xf86drm.h.
  *
  * \sa drm_dma.
  */
-typedef enum drm_dma_flags {	      
-				      /* Flags for DMA buffer dispatch */
-	_DRM_DMA_BLOCK	      = 0x01, /**<
+typedef enum drm_dma_flags {
+	/* Flags for DMA buffer dispatch */
+	_DRM_DMA_BLOCK = 0x01,	      /**<
 				       * Block until buffer dispatched.
-				       * 
+				       *
 				       * \note The buffer may not yet have
 				       * been processed by the hardware --
 				       * getting a hardware lock with the
@@ -347,79 +327,73 @@ typedef enum drm_dma_flags {
 				       * processed.
 				       */
 	_DRM_DMA_WHILE_LOCKED = 0x02, /**< Dispatch while lock held */
-	_DRM_DMA_PRIORITY     = 0x04, /**< High priority dispatch */
+	_DRM_DMA_PRIORITY = 0x04,     /**< High priority dispatch */
 
-				      /* Flags for DMA buffer request */
-	_DRM_DMA_WAIT	      = 0x10, /**< Wait for free buffers */
-	_DRM_DMA_SMALLER_OK   = 0x20, /**< Smaller-than-requested buffers OK */
-	_DRM_DMA_LARGER_OK    = 0x40  /**< Larger-than-requested buffers OK */
+	/* Flags for DMA buffer request */
+	_DRM_DMA_WAIT = 0x10,	      /**< Wait for free buffers */
+	_DRM_DMA_SMALLER_OK = 0x20,   /**< Smaller-than-requested buffers OK */
+	_DRM_DMA_LARGER_OK = 0x40     /**< Larger-than-requested buffers OK */
 } drm_dma_flags_t;
 
-
 /**
  * DRM_IOCTL_ADD_BUFS and DRM_IOCTL_MARK_BUFS ioctl argument type.
  *
  * \sa drmAddBufs().
  */
 typedef struct drm_buf_desc {
-	int	      count;	 /**< Number of buffers of this size */
-	int	      size;	 /**< Size in bytes */
-	int	      low_mark;	 /**< Low water mark */
-	int	      high_mark; /**< High water mark */
+	int count;		 /**< Number of buffers of this size */
+	int size;		 /**< Size in bytes */
+	int low_mark;		 /**< Low water mark */
+	int high_mark;		 /**< High water mark */
 	enum {
-		_DRM_PAGE_ALIGN = 0x01, /**< Align on page boundaries for DMA */
-		_DRM_AGP_BUFFER = 0x02, /**< Buffer is in AGP space */
-		_DRM_SG_BUFFER  = 0x04, /**< Scatter/gather memory buffer */
-		_DRM_FB_BUFFER  = 0x08  /**< Buffer is in frame buffer */
-	}	      flags;
-	unsigned long agp_start; /**< 
+		_DRM_PAGE_ALIGN = 0x01,	/**< Align on page boundaries for DMA */
+		_DRM_AGP_BUFFER = 0x02,	/**< Buffer is in AGP space */
+		_DRM_SG_BUFFER = 0x04,	/**< Scatter/gather memory buffer */
+		_DRM_FB_BUFFER = 0x08	/**< Buffer is in frame buffer */
+	} flags;
+	unsigned long agp_start; /**<
 				  * Start address of where the AGP buffers are
 				  * in the AGP aperture
 				  */
 } drm_buf_desc_t;
 
-
 /**
  * DRM_IOCTL_INFO_BUFS ioctl argument type.
  */
 typedef struct drm_buf_info {
-	int	       count;	/**< Entries in list */
+	int count;		/**< Entries in list */
 	drm_buf_desc_t __user *list;
 } drm_buf_info_t;
 
-
 /**
  * DRM_IOCTL_FREE_BUFS ioctl argument type.
  */
 typedef struct drm_buf_free {
-	int	       count;
-	int	       __user *list;
+	int count;
+	int __user *list;
 } drm_buf_free_t;
 
-
 /**
  * Buffer information
  *
  * \sa drm_buf_map.
  */
 typedef struct drm_buf_pub {
-	int		  idx;	       /**< Index into the master buffer list */
-	int		  total;       /**< Buffer size */
-	int		  used;	       /**< Amount of buffer in use (for DMA) */
-	void	  __user *address;     /**< Address of buffer */
+	int idx;		       /**< Index into the master buffer list */
+	int total;		       /**< Buffer size */
+	int used;		       /**< Amount of buffer in use (for DMA) */
+	void __user *address;	       /**< Address of buffer */
 } drm_buf_pub_t;
 
-
 /**
  * DRM_IOCTL_MAP_BUFS ioctl argument type.
  */
 typedef struct drm_buf_map {
-	int	      count;	/**< Length of the buffer list */
-	void	      __user *virtual;	/**< Mmap'd area in user-virtual */
+	int count;		/**< Length of the buffer list */
+	void __user *virtual;		/**< Mmap'd area in user-virtual */
 	drm_buf_pub_t __user *list;	/**< Buffer information */
 } drm_buf_map_t;
 
-
 /**
  * DRM_IOCTL_DMA ioctl argument type.
  *
@@ -428,61 +402,55 @@ typedef struct drm_buf_map {
  * \sa drmDMA().
  */
 typedef struct drm_dma {
-	int		context;	  /**< Context handle */
-	int		send_count;	  /**< Number of buffers to send */
-	int	__user *send_indices;	  /**< List of handles to buffers */
-	int	__user *send_sizes;	  /**< Lengths of data to send */
+	int context;			  /**< Context handle */
+	int send_count;			  /**< Number of buffers to send */
+	int __user *send_indices;	  /**< List of handles to buffers */
+	int __user *send_sizes;		  /**< Lengths of data to send */
 	drm_dma_flags_t flags;		  /**< Flags */
-	int		request_count;	  /**< Number of buffers requested */
-	int		request_size;	  /**< Desired size for buffers */
-	int	__user *request_indices;  /**< Buffer information */
-	int	__user *request_sizes;
-	int		granted_count;	  /**< Number of buffers granted */
+	int request_count;		  /**< Number of buffers requested */
+	int request_size;		  /**< Desired size for buffers */
+	int __user *request_indices;	  /**< Buffer information */
+	int __user *request_sizes;
+	int granted_count;		  /**< Number of buffers granted */
 } drm_dma_t;
 
-
 typedef enum {
 	_DRM_CONTEXT_PRESERVED = 0x01,
-	_DRM_CONTEXT_2DONLY    = 0x02
+	_DRM_CONTEXT_2DONLY = 0x02
 } drm_ctx_flags_t;
 
-
 /**
  * DRM_IOCTL_ADD_CTX ioctl argument type.
  *
  * \sa drmCreateContext() and drmDestroyContext().
  */
 typedef struct drm_ctx {
-	drm_context_t	handle;
+	drm_context_t handle;
 	drm_ctx_flags_t flags;
 } drm_ctx_t;
 
-
 /**
  * DRM_IOCTL_RES_CTX ioctl argument type.
  */
 typedef struct drm_ctx_res {
-	int		count;
-	drm_ctx_t	__user *contexts;
+	int count;
+	drm_ctx_t __user *contexts;
 } drm_ctx_res_t;
 
-
 /**
  * DRM_IOCTL_ADD_DRAW and DRM_IOCTL_RM_DRAW ioctl argument type.
  */
 typedef struct drm_draw {
-	drm_drawable_t	handle;
+	drm_drawable_t handle;
 } drm_draw_t;
 
-
 /**
  * DRM_IOCTL_GET_MAGIC and DRM_IOCTL_AUTH_MAGIC ioctl argument type.
  */
 typedef struct drm_auth {
-	drm_magic_t	magic;
+	drm_magic_t magic;
 } drm_auth_t;
 
-
 /**
  * DRM_IOCTL_IRQ_BUSID ioctl argument type.
  *
@@ -495,24 +463,20 @@ typedef struct drm_irq_busid {
 	int funcnum;	/**< function number */
 } drm_irq_busid_t;
 
-
 typedef enum {
-    _DRM_VBLANK_ABSOLUTE = 0x0,		/**< Wait for specific vblank sequence number */
-    _DRM_VBLANK_RELATIVE = 0x1,		/**< Wait for given number of vblanks */
-    _DRM_VBLANK_SIGNAL   = 0x40000000	/**< Send signal instead of blocking */
+	_DRM_VBLANK_ABSOLUTE = 0x0,	/**< Wait for specific vblank sequence number */
+	_DRM_VBLANK_RELATIVE = 0x1,	/**< Wait for given number of vblanks */
+	_DRM_VBLANK_SIGNAL = 0x40000000	/**< Send signal instead of blocking */
 } drm_vblank_seq_type_t;
 
-
 #define _DRM_VBLANK_FLAGS_MASK _DRM_VBLANK_SIGNAL
 
-
 struct drm_wait_vblank_request {
 	drm_vblank_seq_type_t type;
 	unsigned int sequence;
 	unsigned long signal;
 };
 
-
 struct drm_wait_vblank_reply {
 	drm_vblank_seq_type_t type;
 	unsigned int sequence;
@@ -520,7 +484,6 @@ struct drm_wait_vblank_reply {
 	long tval_usec;
 };
 
-
 /**
  * DRM_IOCTL_WAIT_VBLANK ioctl argument type.
  *
@@ -531,7 +494,6 @@ typedef union drm_wait_vblank {
 	struct drm_wait_vblank_reply reply;
 } drm_wait_vblank_t;
 
-
 /**
  * DRM_IOCTL_AGP_ENABLE ioctl argument type.
  *
@@ -541,7 +503,6 @@ typedef struct drm_agp_mode {
 	unsigned long mode;	/**< AGP mode */
 } drm_agp_mode_t;
 
-
 /**
  * DRM_IOCTL_AGP_ALLOC and DRM_IOCTL_AGP_FREE ioctls argument type.
  *
@@ -550,22 +511,20 @@ typedef struct drm_agp_mode {
 typedef struct drm_agp_buffer {
 	unsigned long size;	/**< In bytes -- will round to page boundary */
 	unsigned long handle;	/**< Used for binding / unbinding */
-	unsigned long type;     /**< Type of memory to allocate */
-        unsigned long physical; /**< Physical used by i810 */
+	unsigned long type;	/**< Type of memory to allocate */
+	unsigned long physical;	/**< Physical used by i810 */
 } drm_agp_buffer_t;
 
-
 /**
  * DRM_IOCTL_AGP_BIND and DRM_IOCTL_AGP_UNBIND ioctls argument type.
  *
  * \sa drmAgpBind() and drmAgpUnbind().
  */
 typedef struct drm_agp_binding {
-	unsigned long handle;   /**< From drm_agp_buffer */
+	unsigned long handle;	/**< From drm_agp_buffer */
 	unsigned long offset;	/**< In bytes -- will round to page boundary */
 } drm_agp_binding_t;
 
-
 /**
  * DRM_IOCTL_AGP_INFO ioctl argument type.
  *
@@ -574,20 +533,19 @@ typedef struct drm_agp_binding {
  * drmAgpVendorId() and drmAgpDeviceId().
  */
 typedef struct drm_agp_info {
-	int            agp_version_major;
-	int            agp_version_minor;
-	unsigned long  mode;
-	unsigned long  aperture_base;  /* physical address */
-	unsigned long  aperture_size;  /* bytes */
-	unsigned long  memory_allowed; /* bytes */
-	unsigned long  memory_used;
-
-				/* PCI information */
+	int agp_version_major;
+	int agp_version_minor;
+	unsigned long mode;
+	unsigned long aperture_base;	/* physical address */
+	unsigned long aperture_size;	/* bytes */
+	unsigned long memory_allowed;	/* bytes */
+	unsigned long memory_used;
+
+	/* PCI information */
 	unsigned short id_vendor;
 	unsigned short id_device;
 } drm_agp_info_t;
 
-
 /**
  * DRM_IOCTL_SG_ALLOC ioctl argument type.
  */
@@ -606,7 +564,6 @@ typedef struct drm_set_version {
 	int drm_dd_minor;
 } drm_set_version_t;
 
-
 #define DRM_IOCTL_BASE			'd'
 #define DRM_IO(nr)			_IO(DRM_IOCTL_BASE,nr)
 #define DRM_IOR(nr,type)		_IOR(DRM_IOCTL_BASE,nr,type)

drivers/char/drm/drm_agpsupport.c

 /**
- * \file drm_agpsupport.h 
+ * \file drm_agpsupport.h
  * DRM support for AGP/GART backend
- *    
+ *
  * \author Rickard E. (Rik) Faith <faith@valinux.com>
  * \author Gareth Hughes <gareth@valinux.com>
  */
@@ -48,30 +48,31 @@
  * Verifies the AGP device has been initialized and acquired and fills in the
  * drm_agp_info structure with the information in drm_agp_head::agp_info.
  */
-int drm_agp_info(drm_device_t *dev, drm_agp_info_t *info)
+int drm_agp_info(drm_device_t * dev, drm_agp_info_t * info)
 {
-	DRM_AGP_KERN     *kern;
+	DRM_AGP_KERN *kern;
 
 	if (!dev->agp || !dev->agp->acquired)
 		return -EINVAL;
 
-	kern                   = &dev->agp->agp_info;
+	kern = &dev->agp->agp_info;
 	info->agp_version_major = kern->version.major;
 	info->agp_version_minor = kern->version.minor;
-	info->mode              = kern->mode;
-	info->aperture_base     = kern->aper_base;
-	info->aperture_size     = kern->aper_size * 1024 * 1024;
-	info->memory_allowed    = kern->max_memory << PAGE_SHIFT;
-	info->memory_used       = kern->current_memory << PAGE_SHIFT;
-	info->id_vendor         = kern->device->vendor;
-	info->id_device         = kern->device->device;
+	info->mode = kern->mode;
+	info->aperture_base = kern->aper_base;
+	info->aperture_size = kern->aper_size * 1024 * 1024;
+	info->memory_allowed = kern->max_memory << PAGE_SHIFT;
+	info->memory_used = kern->current_memory << PAGE_SHIFT;
+	info->id_vendor = kern->device->vendor;
+	info->id_device = kern->device->device;
 
 	return 0;
 }
+
 EXPORT_SYMBOL(drm_agp_info);
 
 int drm_agp_info_ioctl(struct inode *inode, struct file *filp,
-		 unsigned int cmd, unsigned long arg)
+		       unsigned int cmd, unsigned long arg)
 {
 	drm_file_t *priv = filp->private_data;
 	drm_device_t *dev = priv->head->dev;
@@ -81,7 +82,7 @@ int drm_agp_info_ioctl(struct inode *inode, struct file *filp,
 	err = drm_agp_info(dev, &info);
 	if (err)
 		return err;
-	
+
 	if (copy_to_user((drm_agp_info_t __user *) arg, &info, sizeof(info)))
 		return -EFAULT;
 	return 0;
@@ -91,12 +92,12 @@ int drm_agp_info_ioctl(struct inode *inode, struct file *filp,
  * Acquire the AGP device.
  *
  * \param dev DRM device that is to acquire AGP
- * \return zero on success or a negative number on failure. 
+ * \return zero on success or a negative number on failure.
  *
  * Verifies the AGP device hasn't been acquired before and calls
  * \c agp_backend_acquire.
  */
-int drm_agp_acquire(drm_device_t *dev)
+int drm_agp_acquire(drm_device_t * dev)
 {
 	if (!dev->agp)
 		return -ENODEV;
@@ -107,6 +108,7 @@ int drm_agp_acquire(drm_device_t *dev)
 	dev->agp->acquired = 1;
 	return 0;
 }
+
 EXPORT_SYMBOL(drm_agp_acquire);
 
 /**
@@ -125,8 +127,8 @@ int drm_agp_acquire_ioctl(struct inode *inode, struct file *filp,
 			  unsigned int cmd, unsigned long arg)
 {
 	drm_file_t *priv = filp->private_data;
-	
-	return drm_agp_acquire( (drm_device_t *) priv->head->dev );
+
+	return drm_agp_acquire((drm_device_t *) priv->head->dev);
 }
 
 /**
@@ -137,7 +139,7 @@ int drm_agp_acquire_ioctl(struct inode *inode, struct file *filp,
  *
  * Verifies the AGP device has been acquired and calls \c agp_backend_release.
  */
-int drm_agp_release(drm_device_t *dev)
+int drm_agp_release(drm_device_t * dev)
 {
 	if (!dev->agp || !dev->agp->acquired)
 		return -EINVAL;
@@ -145,6 +147,7 @@ int drm_agp_release(drm_device_t *dev)
 	dev->agp->acquired = 0;
 	return 0;
 }
+
 EXPORT_SYMBOL(drm_agp_release);
 
 int drm_agp_release_ioctl(struct inode *inode, struct file *filp,
@@ -152,13 +155,13 @@ int drm_agp_release_ioctl(struct inode *inode, struct file *filp,
 {
 	drm_file_t *priv = filp->private_data;
 	drm_device_t *dev = priv->head->dev;
-	
+
 	return drm_agp_release(dev);
 }
 
 /**
  * Enable the AGP bus.
- * 
+ *
  * \param dev DRM device that has previously acquired AGP.
  * \param mode Requested AGP mode.
  * \return zero on success or a negative number on failure.
@@ -166,27 +169,27 @@ int drm_agp_release_ioctl(struct inode *inode, struct file *filp,
  * Verifies the AGP device has been acquired but not enabled, and calls
  * \c agp_enable.
  */
-int drm_agp_enable(drm_device_t *dev, drm_agp_mode_t mode)
+int drm_agp_enable(drm_device_t * dev, drm_agp_mode_t mode)
 {
 	if (!dev->agp || !dev->agp->acquired)
 		return -EINVAL;
 
-	dev->agp->mode    = mode.mode;
+	dev->agp->mode = mode.mode;
 	agp_enable(dev->agp->bridge, mode.mode);
-	dev->agp->base    = dev->agp->agp_info.aper_base;
+	dev->agp->base = dev->agp->agp_info.aper_base;
 	dev->agp->enabled = 1;
 	return 0;
 }
+
 EXPORT_SYMBOL(drm_agp_enable);
 
 int drm_agp_enable_ioctl(struct inode *inode, struct file *filp,
-		   unsigned int cmd, unsigned long arg)
+			 unsigned int cmd, unsigned long arg)
 {
 	drm_file_t *priv = filp->private_data;
 	drm_device_t *dev = priv->head->dev;
 	drm_agp_mode_t mode;
 
-
 	if (copy_from_user(&mode, (drm_agp_mode_t __user *) arg, sizeof(mode)))
 		return -EFAULT;
 
@@ -201,20 +204,20 @@ int drm_agp_enable_ioctl(struct inode *inode, struct file *filp,
  * \param cmd command.
  * \param arg pointer to a drm_agp_buffer structure.
  * \return zero on success or a negative number on failure.
- * 
+ *
  * Verifies the AGP device is present and has been acquired, allocates the
  * memory via alloc_agp() and creates a drm_agp_mem entry for it.
  */
 int drm_agp_alloc(struct inode *inode, struct file *filp,
-		   unsigned int cmd, unsigned long arg)
+		  unsigned int cmd, unsigned long arg)
 {
-	drm_file_t	 *priv	 = filp->private_data;
-	drm_device_t	 *dev	 = priv->head->dev;
+	drm_file_t *priv = filp->private_data;
+	drm_device_t *dev = priv->head->dev;
 	drm_agp_buffer_t request;
-	drm_agp_mem_t    *entry;
-	DRM_AGP_MEM      *memory;
-	unsigned long    pages;
-	u32 		 type;
+	drm_agp_mem_t *entry;
+	DRM_AGP_MEM *memory;
+	unsigned long pages;
+	u32 type;
 	drm_agp_buffer_t __user *argp = (void __user *)arg;
 
 	if (!dev->agp || !dev->agp->acquired)
@@ -224,7 +227,7 @@ int drm_agp_alloc(struct inode *inode, struct file *filp,
 	if (!(entry = drm_alloc(sizeof(*entry), DRM_MEM_AGPLISTS)))
 		return -ENOMEM;
 
-   	memset(entry, 0, sizeof(*entry));
+	memset(entry, 0, sizeof(*entry));
 
 	pages = (request.size + PAGE_SIZE - 1) / PAGE_SIZE;
 	type = (u32) request.type;
@@ -234,21 +237,21 @@ int drm_agp_alloc(struct inode *inode, struct file *filp,
 		return -ENOMEM;
 	}
 
-	entry->handle    = (unsigned long)memory->key + 1;
-	entry->memory    = memory;
-	entry->bound     = 0;
-	entry->pages     = pages;
-	entry->prev      = NULL;
-	entry->next      = dev->agp->memory;
+	entry->handle = (unsigned long)memory->key + 1;
+	entry->memory = memory;
+	entry->bound = 0;
+	entry->pages = pages;
+	entry->prev = NULL;
+	entry->next = dev->agp->memory;
 	if (dev->agp->memory)
 		dev->agp->memory->prev = entry;
 	dev->agp->memory = entry;
 
-	request.handle   = entry->handle;
+	request.handle = entry->handle;
 	request.physical = memory->physical;
 
 	if (copy_to_user(argp, &request, sizeof(request))) {
-		dev->agp->memory       = entry->next;
+		dev->agp->memory = entry->next;
 		dev->agp->memory->prev = NULL;
 		drm_free_agp(memory, pages);
 		drm_free(entry, sizeof(*entry), DRM_MEM_AGPLISTS);
@@ -263,11 +266,11 @@ int drm_agp_alloc(struct inode *inode, struct file *filp,
  * \param dev DRM device structure.
  * \param handle AGP memory handle.
  * \return pointer to the drm_agp_mem structure associated with \p handle.
- * 
+ *
  * Walks through drm_agp_head::memory until finding a matching handle.
  */
-static drm_agp_mem_t *drm_agp_lookup_entry(drm_device_t *dev,
-					    unsigned long handle)
+static drm_agp_mem_t *drm_agp_lookup_entry(drm_device_t * dev,
+					   unsigned long handle)
 {
 	drm_agp_mem_t *entry;
 
@@ -291,17 +294,18 @@ static drm_agp_mem_t *drm_agp_lookup_entry(drm_device_t *dev,
  * entry and passes it to the unbind_agp() function.
  */
 int drm_agp_unbind(struct inode *inode, struct file *filp,
-		    unsigned int cmd, unsigned long arg)
+		   unsigned int cmd, unsigned long arg)
 {
-	drm_file_t	  *priv	 = filp->private_data;
-	drm_device_t	  *dev	 = priv->head->dev;
+	drm_file_t *priv = filp->private_data;
+	drm_device_t *dev = priv->head->dev;
 	drm_agp_binding_t request;
-	drm_agp_mem_t     *entry;
+	drm_agp_mem_t *entry;
 	int ret;
 
 	if (!dev->agp || !dev->agp->acquired)
 		return -EINVAL;
-	if (copy_from_user(&request, (drm_agp_binding_t __user *)arg, sizeof(request)))
+	if (copy_from_user
+	    (&request, (drm_agp_binding_t __user *) arg, sizeof(request)))
 		return -EFAULT;
 	if (!(entry = drm_agp_lookup_entry(dev, request.handle)))
 		return -EINVAL;
@@ -309,7 +313,7 @@ int drm_agp_unbind(struct inode *inode, struct file *filp,
 		return -EINVAL;
 	ret = drm_unbind_agp(entry->memory);
 	if (ret == 0)
-	    entry->bound = 0;
+		entry->bound = 0;
 	return ret;
 }
 
@@ -327,18 +331,19 @@ int drm_agp_unbind(struct inode *inode, struct file *filp,
  * it to bind_agp() function.
  */
 int drm_agp_bind(struct inode *inode, struct file *filp,
-		  unsigned int cmd, unsigned long arg)
+		 unsigned int cmd, unsigned long arg)
 {
-	drm_file_t	  *priv	 = filp->private_data;
-	drm_device_t	  *dev	 = priv->head->dev;
+	drm_file_t *priv = filp->private_data;
+	drm_device_t *dev = priv->head->dev;
 	drm_agp_binding_t request;
-	drm_agp_mem_t     *entry;
-	int               retcode;
-	int               page;
+	drm_agp_mem_t *entry;
+	int retcode;
+	int page;
 
 	if (!dev->agp || !dev->agp->acquired)
 		return -EINVAL;
-	if (copy_from_user(&request, (drm_agp_binding_t __user *)arg, sizeof(request)))
+	if (copy_from_user
+	    (&request, (drm_agp_binding_t __user *) arg, sizeof(request)))
 		return -EFAULT;
 	if (!(entry = drm_agp_lookup_entry(dev, request.handle)))
 		return -EINVAL;
@@ -368,16 +373,17 @@ int drm_agp_bind(struct inode *inode, struct file *filp,
  * and unlinks from the doubly linked list it's inserted in.
  */
 int drm_agp_free(struct inode *inode, struct file *filp,
-		  unsigned int cmd, unsigned long arg)
+		 unsigned int cmd, unsigned long arg)
 {
-	drm_file_t	 *priv	 = filp->private_data;
-	drm_device_t	 *dev	 = priv->head->dev;
+	drm_file_t *priv = filp->private_data;
+	drm_device_t *dev = priv->head->dev;
 	drm_agp_buffer_t request;
-	drm_agp_mem_t    *entry;
+	drm_agp_mem_t *entry;
 
 	if (!dev->agp || !dev->agp->acquired)
 		return -EINVAL;
-	if (copy_from_user(&request, (drm_agp_buffer_t __user *)arg, sizeof(request)))
+	if (copy_from_user
+	    (&request, (drm_agp_buffer_t __user *) arg, sizeof(request)))
 		return -EFAULT;
 	if (!(entry = drm_agp_lookup_entry(dev, request.handle)))
 		return -EINVAL;
@@ -403,9 +409,9 @@ int drm_agp_free(struct inode *inode, struct file *filp,
  * \return pointer to a drm_agp_head structure.
  *
  */
-drm_agp_head_t *drm_agp_init(drm_device_t *dev)
+drm_agp_head_t *drm_agp_init(drm_device_t * dev)
 {
-	drm_agp_head_t *head         = NULL;
+	drm_agp_head_t *head = NULL;
 
 	if (!(head = drm_alloc(sizeof(*head), DRM_MEM_AGPLISTS)))
 		return NULL;
@@ -433,13 +439,14 @@ drm_agp_head_t *drm_agp_init(drm_device_t *dev)
 }
 
 /** Calls agp_allocate_memory() */
-DRM_AGP_MEM *drm_agp_allocate_memory(struct agp_bridge_data *bridge, size_t pages, u32 type)
+DRM_AGP_MEM *drm_agp_allocate_memory(struct agp_bridge_data * bridge,
+				     size_t pages, u32 type)
 {
 	return agp_allocate_memory(bridge, pages, type);
 }
 
 /** Calls agp_free_memory() */
-int drm_agp_free_memory(DRM_AGP_MEM *handle)
+int drm_agp_free_memory(DRM_AGP_MEM * handle)
 {
 	if (!handle)
 		return 0;
@@ -448,20 +455,21 @@ int drm_agp_free_memory(DRM_AGP_MEM *handle)
 }
 
 /** Calls agp_bind_memory() */
-int drm_agp_bind_memory(DRM_AGP_MEM *handle, off_t start)
+int drm_agp_bind_memory(DRM_AGP_MEM * handle, off_t start)
 {
 	if (!handle)
 		return -EINVAL;
 	return agp_bind_memory(handle, start);
 }
+
 EXPORT_SYMBOL(drm_agp_bind_memory);
 
 /** Calls agp_unbind_memory() */
-int drm_agp_unbind_memory(DRM_AGP_MEM *handle)
+int drm_agp_unbind_memory(DRM_AGP_MEM * handle)
 {
 	if (!handle)
 		return -EINVAL;
 	return agp_unbind_memory(handle);
 }
 
-#endif /* __OS_HAS_AGP */
+#endif				/* __OS_HAS_AGP */

drivers/char/drm/drm_auth.c

 /**
- * \file drm_auth.h 
+ * \file drm_auth.c
  * IOCTLs for authentication
  *
  * \author Rickard E. (Rik) Faith <faith@valinux.com>
@@ -46,7 +46,7 @@
  */
 static int drm_hash_magic(drm_magic_t magic)
 {
-	return magic & (DRM_HASH_SIZE-1);
+	return magic & (DRM_HASH_SIZE - 1);
 }
 
 /**
@@ -59,11 +59,11 @@ static int drm_hash_magic(drm_magic_t magic)
  * the one with matching magic number, while holding the drm_device::struct_sem
  * lock.
  */
-static drm_file_t *drm_find_file(drm_device_t *dev, drm_magic_t magic)
+static drm_file_t *drm_find_file(drm_device_t * dev, drm_magic_t magic)
 {
-	drm_file_t	  *retval = NULL;
+	drm_file_t *retval = NULL;
 	drm_magic_entry_t *pt;
-	int		  hash	  = drm_hash_magic(magic);
+	int hash = drm_hash_magic(magic);
 
 	down(&dev->struct_sem);
 	for (pt = dev->magiclist[hash].head; pt; pt = pt->next) {
@@ -78,7 +78,7 @@ static drm_file_t *drm_find_file(drm_device_t *dev, drm_magic_t magic)
 
 /**
  * Adds a magic number.
- * 
+ *
  * \param dev DRM device.
  * \param priv file private data.
  * \param magic magic number.
@@ -87,28 +87,30 @@ static drm_file_t *drm_find_file(drm_device_t *dev, drm_magic_t magic)
  * associated the magic number hash key in drm_device::magiclist, while holding
  * the drm_device::struct_sem lock.
  */
-static int drm_add_magic(drm_device_t *dev, drm_file_t *priv, drm_magic_t magic)
+static int drm_add_magic(drm_device_t * dev, drm_file_t * priv,
+			 drm_magic_t magic)
 {
-	int		  hash;
+	int hash;
 	drm_magic_entry_t *entry;
 
 	DRM_DEBUG("%d\n", magic);
 
-	hash	     = drm_hash_magic(magic);
-	entry	     = drm_alloc(sizeof(*entry), DRM_MEM_MAGIC);
-	if (!entry) return -ENOMEM;
+	hash = drm_hash_magic(magic);
+	entry = drm_alloc(sizeof(*entry), DRM_MEM_MAGIC);
+	if (!entry)
+		return -ENOMEM;
 	memset(entry, 0, sizeof(*entry));
 	entry->magic = magic;
-	entry->priv  = priv;
-	entry->next  = NULL;
+	entry->priv = priv;
+	entry->next = NULL;
 
 	down(&dev->struct_sem);
 	if (dev->magiclist[hash].tail) {
 		dev->magiclist[hash].tail->next = entry;
-		dev->magiclist[hash].tail	= entry;
+		dev->magiclist[hash].tail = entry;
 	} else {
-		dev->magiclist[hash].head	= entry;
-		dev->magiclist[hash].tail	= entry;
+		dev->magiclist[hash].head = entry;
+		dev->magiclist[hash].tail = entry;
 	}
 	up(&dev->struct_sem);
 
@@ -117,19 +119,18 @@ static int drm_add_magic(drm_device_t *dev, drm_file_t *priv, drm_magic_t magic)
 
 /**
  * Remove a magic number.
- * 
+ *
  * \param dev DRM device.
  * \param magic magic number.
  *
  * Searches and unlinks the entry in drm_device::magiclist with the magic
  * number hash key, while holding the drm_device::struct_sem lock.
  */
-static int drm_remove_magic(drm_device_t *dev, drm_magic_t magic)
+static int drm_remove_magic(drm_device_t * dev, drm_magic_t magic)
 {
 	drm_magic_entry_t *prev = NULL;
 	drm_magic_entry_t *pt;
-	int		  hash;
-
+	int hash;
 
 	DRM_DEBUG("%d\n", magic);
 	hash = drm_hash_magic(magic);
@@ -171,21 +172,22 @@ static int drm_remove_magic(drm_device_t *dev, drm_magic_t magic)
  * filp.
  */
 int drm_getmagic(struct inode *inode, struct file *filp,
-		  unsigned int cmd, unsigned long arg)
+		 unsigned int cmd, unsigned long arg)
 {
 	static drm_magic_t sequence = 0;
 	static DEFINE_SPINLOCK(lock);
-	drm_file_t	   *priv    = filp->private_data;
-	drm_device_t	   *dev	    = priv->head->dev;
-	drm_auth_t	   auth;
+	drm_file_t *priv = filp->private_data;
+	drm_device_t *dev = priv->head->dev;
+	drm_auth_t auth;
 
-				/* Find unique magic */
+	/* Find unique magic */
 	if (priv->magic) {
 		auth.magic = priv->magic;
 	} else {
 		do {
 			spin_lock(&lock);
-			if (!sequence) ++sequence; /* reserve 0 */
+			if (!sequence)
+				++sequence;	/* reserve 0 */
 			auth.magic = sequence++;
 			spin_unlock(&lock);
 		} while (drm_find_file(dev, auth.magic));
@@ -194,7 +196,7 @@ int drm_getmagic(struct inode *inode, struct file *filp,
 	}
 
 	DRM_DEBUG("%u\n", auth.magic);
-	if (copy_to_user((drm_auth_t __user *)arg, &auth, sizeof(auth)))
+	if (copy_to_user((drm_auth_t __user *) arg, &auth, sizeof(auth)))
 		return -EFAULT;
 	return 0;
 }
@@ -211,14 +213,14 @@ int drm_getmagic(struct inode *inode, struct file *filp,
  * Checks if \p filp is associated with the magic number passed in \arg.
  */
 int drm_authmagic(struct inode *inode, struct file *filp,
-		   unsigned int cmd, unsigned long arg)
+		  unsigned int cmd, unsigned long arg)
 {
-	drm_file_t	   *priv    = filp->private_data;
-	drm_device_t	   *dev	    = priv->head->dev;
-	drm_auth_t	   auth;
-	drm_file_t	   *file;
+	drm_file_t *priv = filp->private_data;
+	drm_device_t *dev = priv->head->dev;
+	drm_auth_t auth;
+	drm_file_t *file;
 
-	if (copy_from_user(&auth, (drm_auth_t __user *)arg, sizeof(auth)))
+	if (copy_from_user(&auth, (drm_auth_t __user *) arg, sizeof(auth)))
 		return -EFAULT;
 	DRM_DEBUG("%u\n", auth.magic);
 	if ((file = drm_find_file(dev, auth.magic))) {

drivers/char/drm/drm_context.c

 /**
- * \file drm_context.h 
+ * \file drm_context.c
  * IOCTLs for generic contexts
- * 
+ *
  * \author Rickard E. (Rik) Faith <faith@valinux.com>
  * \author Gareth Hughes <gareth@valinux.com>
  */
@@ -56,25 +56,26 @@
  * in drm_device::context_sareas, while holding the drm_device::struct_sem
  * lock.
  */
-void drm_ctxbitmap_free( drm_device_t *dev, int ctx_handle )
+void drm_ctxbitmap_free(drm_device_t * dev, int ctx_handle)
 {
-	if ( ctx_handle < 0 ) goto failed;
-	if ( !dev->ctx_bitmap ) goto failed;
+	if (ctx_handle < 0)
+		goto failed;
+	if (!dev->ctx_bitmap)
+		goto failed;
 
-	if ( ctx_handle < DRM_MAX_CTXBITMAP ) {
+	if (ctx_handle < DRM_MAX_CTXBITMAP) {
 		down(&dev->struct_sem);
-		clear_bit( ctx_handle, dev->ctx_bitmap );
+		clear_bit(ctx_handle, dev->ctx_bitmap);
 		dev->context_sareas[ctx_handle] = NULL;
 		up(&dev->struct_sem);
 		return;
 	}
-failed:
-       	DRM_ERROR( "Attempt to free invalid context handle: %d\n",
-		   ctx_handle );
-       	return;
+      failed:
+	DRM_ERROR("Attempt to free invalid context handle: %d\n", ctx_handle);
+	return;
 }
 
-/** 
+/**
  * Context bitmap allocation.
  *
  * \param dev DRM device.
@@ -84,29 +85,33 @@ void drm_ctxbitmap_free( drm_device_t *dev, int ctx_handle )
  * drm_device::context_sareas to accommodate the new entry while holding the
  * drm_device::struct_sem lock.
  */
-static int drm_ctxbitmap_next( drm_device_t *dev )
+static int drm_ctxbitmap_next(drm_device_t * dev)
 {
 	int bit;
 
-	if(!dev->ctx_bitmap) return -1;
+	if (!dev->ctx_bitmap)
+		return -1;
 
 	down(&dev->struct_sem);
-	bit = find_first_zero_bit( dev->ctx_bitmap, DRM_MAX_CTXBITMAP );
-	if ( bit < DRM_MAX_CTXBITMAP ) {
-		set_bit( bit, dev->ctx_bitmap );
-	   	DRM_DEBUG( "drm_ctxbitmap_next bit : %d\n", bit );
-		if((bit+1) > dev->max_context) {
-			dev->max_context = (bit+1);
-			if(dev->context_sareas) {
+	bit = find_first_zero_bit(dev->ctx_bitmap, DRM_MAX_CTXBITMAP);
+	if (bit < DRM_MAX_CTXBITMAP) {
+		set_bit(bit, dev->ctx_bitmap);
+		DRM_DEBUG("drm_ctxbitmap_next bit : %d\n", bit);
+		if ((bit + 1) > dev->max_context) {
+			dev->max_context = (bit + 1);
+			if (dev->context_sareas) {
 				drm_map_t **ctx_sareas;
 
 				ctx_sareas = drm_realloc(dev->context_sareas,
-						(dev->max_context - 1) * 
-						sizeof(*dev->context_sareas),
-						dev->max_context * 
-						sizeof(*dev->context_sareas),
-						DRM_MEM_MAPS);
-				if(!ctx_sareas) {
+							 (dev->max_context -
+							  1) *
+							 sizeof(*dev->
+								context_sareas),
+							 dev->max_context *
+							 sizeof(*dev->
+								context_sareas),
+							 DRM_MEM_MAPS);
+				if (!ctx_sareas) {
 					clear_bit(bit, dev->ctx_bitmap);
 					up(&dev->struct_sem);
 					return -1;
@@ -115,11 +120,11 @@ static int drm_ctxbitmap_next( drm_device_t *dev )
 				dev->context_sareas[bit] = NULL;
 			} else {
 				/* max_context == 1 at this point */
-				dev->context_sareas = drm_alloc(
-						dev->max_context * 
-						sizeof(*dev->context_sareas),
-						DRM_MEM_MAPS);
-				if(!dev->context_sareas) {
+				dev->context_sareas =
+				    drm_alloc(dev->max_context *
+					      sizeof(*dev->context_sareas),
+					      DRM_MEM_MAPS);
+				if (!dev->context_sareas) {
 					clear_bit(bit, dev->ctx_bitmap);
 					up(&dev->struct_sem);
 					return -1;
@@ -142,26 +147,26 @@ static int drm_ctxbitmap_next( drm_device_t *dev )
  * Allocates and initialize drm_device::ctx_bitmap and drm_device::context_sareas, while holding
  * the drm_device::struct_sem lock.
  */
-int drm_ctxbitmap_init( drm_device_t *dev )
+int drm_ctxbitmap_init(drm_device_t * dev)
 {
 	int i;
-   	int temp;
+	int temp;
 
 	down(&dev->struct_sem);
-	dev->ctx_bitmap = (unsigned long *) drm_alloc( PAGE_SIZE,
-							DRM_MEM_CTXBITMAP );
-	if ( dev->ctx_bitmap == NULL ) {
+	dev->ctx_bitmap = (unsigned long *)drm_alloc(PAGE_SIZE,
+						     DRM_MEM_CTXBITMAP);
+	if (dev->ctx_bitmap == NULL) {
 		up(&dev->struct_sem);
 		return -ENOMEM;
 	}
-	memset( (void *)dev->ctx_bitmap, 0, PAGE_SIZE );
+	memset((void *)dev->ctx_bitmap, 0, PAGE_SIZE);
 	dev->context_sareas = NULL;
 	dev->max_context = -1;
 	up(&dev->struct_sem);
 
-	for ( i = 0 ; i < DRM_RESERVED_CONTEXTS ; i++ ) {
-		temp = drm_ctxbitmap_next( dev );
-	   	DRM_DEBUG( "drm_ctxbitmap_init : %d\n", temp );
+	for (i = 0; i < DRM_RESERVED_CONTEXTS; i++) {
+		temp = drm_ctxbitmap_next(dev);
+		DRM_DEBUG("drm_ctxbitmap_init : %d\n", temp);
 	}
 
 	return 0;
@@ -175,14 +180,14 @@ int drm_ctxbitmap_init( drm_device_t *dev )
  * Frees drm_device::ctx_bitmap and drm_device::context_sareas, while holding
  * the drm_device::struct_sem lock.
  */
-void drm_ctxbitmap_cleanup( drm_device_t *dev )
+void drm_ctxbitmap_cleanup(drm_device_t * dev)
 {
 	down(&dev->struct_sem);
-	if( dev->context_sareas ) drm_free( dev->context_sareas,
-					     sizeof(*dev->context_sareas) * 
-					     dev->max_context,
-					     DRM_MEM_MAPS );
-	drm_free( (void *)dev->ctx_bitmap, PAGE_SIZE, DRM_MEM_CTXBITMAP );
+	if (dev->context_sareas)
+		drm_free(dev->context_sareas,
+			 sizeof(*dev->context_sareas) *
+			 dev->max_context, DRM_MEM_MAPS);
+	drm_free((void *)dev->ctx_bitmap, PAGE_SIZE, DRM_MEM_CTXBITMAP);
 	up(&dev->struct_sem);
 }
 
@@ -194,7 +199,7 @@ void drm_ctxbitmap_cleanup( drm_device_t *dev )
 
 /**
  * Get per-context SAREA.
- * 
+ *
  * \param inode device inode.
  * \param filp file pointer.
  * \param cmd command.
@@ -205,10 +210,10 @@ void drm_ctxbitmap_cleanup( drm_device_t *dev )
  * returns its handle.
  */
 int drm_getsareactx(struct inode *inode, struct file *filp,
-		     unsigned int cmd, unsigned long arg)
+		    unsigned int cmd, unsigned long arg)
 {
-	drm_file_t	*priv	= filp->private_data;
-	drm_device_t	*dev	= priv->head->dev;
+	drm_file_t *priv = filp->private_data;
+	drm_device_t *dev = priv->head->dev;
 	drm_ctx_priv_map_t __user *argp = (void __user *)arg;
 	drm_ctx_priv_map_t request;
 	drm_map_t *map;
@@ -218,7 +223,8 @@ int drm_getsareactx(struct inode *inode, struct file *filp,
 		return -EFAULT;
 
 	down(&dev->struct_sem);
-	if (dev->max_context < 0 || request.ctx_id >= (unsigned) dev->max_context) {
+	if (dev->max_context < 0
+	    || request.ctx_id >= (unsigned)dev->max_context) {
 		up(&dev->struct_sem);
 		return -EINVAL;
 	}
@@ -227,16 +233,16 @@ int drm_getsareactx(struct inode *inode, struct file *filp,
 	up(&dev->struct_sem);
 
 	request.handle = 0;
-	list_for_each_entry(_entry, &dev->maplist->head,head) {
+	list_for_each_entry(_entry, &dev->maplist->head, head) {
 		if (_entry->map == map) {
-			request.handle = (void *)(unsigned long)_entry->user_token;
+			request.handle =
+			    (void *)(unsigned long)_entry->user_token;
 			break;
 		}
 	}
 	if (request.handle == 0)
 		return -EINVAL;
 
-
 	if (copy_to_user(argp, &request, sizeof(request)))
 		return -EFAULT;
 	return 0;
@@ -244,7 +250,7 @@ int drm_getsareactx(struct inode *inode, struct file *filp,
 
 /**
  * Set per-context SAREA.
- * 
+ *
  * \param inode device inode.
  * \param filp file pointer.
  * \param cmd command.
@@ -255,37 +261,37 @@ int drm_getsareactx(struct inode *inode, struct file *filp,
  * drm_device::context_sareas with it.
  */
 int drm_setsareactx(struct inode *inode, struct file *filp,
-		     unsigned int cmd, unsigned long arg)
+		    unsigned int cmd, unsigned long arg)
 {
-	drm_file_t	*priv	= filp->private_data;
-	drm_device_t	*dev	= priv->head->dev;
+	drm_file_t *priv = filp->private_data;
+	drm_device_t *dev = priv->head->dev;
 	drm_ctx_priv_map_t request;
 	drm_map_t *map = NULL;
 	drm_map_list_t *r_list = NULL;
 	struct list_head *list;
 
 	if (copy_from_user(&request,
-			   (drm_ctx_priv_map_t __user *)arg,
-			   sizeof(request)))
+			   (drm_ctx_priv_map_t __user *) arg, sizeof(request)))
 		return -EFAULT;
 
 	down(&dev->struct_sem);
 	list_for_each(list, &dev->maplist->head) {
 		r_list = list_entry(list, drm_map_list_t, head);
 		if (r_list->map
-		    && r_list->user_token == (unsigned long) request.handle)
+		    && r_list->user_token == (unsigned long)request.handle)
 			goto found;
 	}
-bad:
+      bad:
 	up(&dev->struct_sem);
 	return -EINVAL;
 
-found:
+      found:
 	map = r_list->map;
-	if (!map) goto bad;
+	if (!map)
+		goto bad;
 	if (dev->max_context < 0)
 		goto bad;
-	if (request.ctx_id >= (unsigned) dev->max_context)
+	if (request.ctx_id >= (unsigned)dev->max_context)
 		goto bad;
 	dev->context_sareas[request.ctx_id] = map;
 	up(&dev->struct_sem);
@@ -308,22 +314,21 @@ int drm_setsareactx(struct inode *inode, struct file *filp,
  *
  * Attempt to set drm_device::context_flag.
  */
-static int drm_context_switch( drm_device_t *dev, int old, int new )
+static int drm_context_switch(drm_device_t * dev, int old, int new)
 {
-        if ( test_and_set_bit( 0, &dev->context_flag ) ) {
-                DRM_ERROR( "Reentering -- FIXME\n" );
-                return -EBUSY;
-        }
-
+	if (test_and_set_bit(0, &dev->context_flag)) {
+		DRM_ERROR("Reentering -- FIXME\n");
+		return -EBUSY;
+	}
 
-        DRM_DEBUG( "Context switch from %d to %d\n", old, new );
+	DRM_DEBUG("Context switch from %d to %d\n", old, new);
 
-        if ( new == dev->last_context ) {
-                clear_bit( 0, &dev->context_flag );
-                return 0;
-        }
+	if (new == dev->last_context) {
+		clear_bit(0, &dev->context_flag);
+		return 0;
+	}
 
-        return 0;
+	return 0;
 }
 
 /**
@@ -337,22 +342,22 @@ static int drm_context_switch( drm_device_t *dev, int old, int new )
  * hardware lock is held, clears the drm_device::context_flag and wakes up
  * drm_device::context_wait.
  */
-static int drm_context_switch_complete( drm_device_t *dev, int new )
+static int drm_context_switch_complete(drm_device_t * dev, int new)
 {
-        dev->last_context = new;  /* PRE/POST: This is the _only_ writer. */
-        dev->last_switch  = jiffies;
+	dev->last_context = new;	/* PRE/POST: This is the _only_ writer. */
+	dev->last_switch = jiffies;
 
-        if ( !_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock) ) {
-                DRM_ERROR( "Lock isn't held after context switch\n" );
-        }
+	if (!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
+		DRM_ERROR("Lock isn't held after context switch\n");
+	}
 
-				/* If a context switch is ever initiated
-                                   when the kernel holds the lock, release
-                                   that lock here. */
-        clear_bit( 0, &dev->context_flag );
-        wake_up( &dev->context_wait );
+	/* If a context switch is ever initiated
+	   when the kernel holds the lock, release
+	   that lock here. */
+	clear_bit(0, &dev->context_flag);
+	wake_up(&dev->context_wait);
 
-        return 0;
+	return 0;
 }
 
 /**
@@ -364,29 +369,28 @@ static int drm_context_switch_complete( drm_device_t *dev, int new )
  * \param arg user argument pointing to a drm_ctx_res structure.
  * \return zero on success or a negative number on failure.
  */
-int drm_resctx( struct inode *inode, struct file *filp,
-		 unsigned int cmd, unsigned long arg )
+int drm_resctx(struct inode *inode, struct file *filp,
+	       unsigned int cmd, unsigned long arg)
 {
 	drm_ctx_res_t res;
 	drm_ctx_t __user *argp = (void __user *)arg;
 	drm_ctx_t ctx;
 	int i;
 
-	if ( copy_from_user( &res, argp, sizeof(res) ) )
+	if (copy_from_user(&res, argp, sizeof(res)))
 		return -EFAULT;
 
-	if ( res.count >= DRM_RESERVED_CONTEXTS ) {
-		memset( &ctx, 0, sizeof(ctx) );
-		for ( i = 0 ; i < DRM_RESERVED_CONTEXTS ; i++ ) {
+	if (res.count >= DRM_RESERVED_CONTEXTS) {
+		memset(&ctx, 0, sizeof(ctx));
+		for (i = 0; i < DRM_RESERVED_CONTEXTS; i++) {
 			ctx.handle = i;
-			if ( copy_to_user( &res.contexts[i],
-					   &ctx, sizeof(ctx) ) )
+			if (copy_to_user(&res.contexts[i], &ctx, sizeof(ctx)))
 				return -EFAULT;
 		}
 	}
 	res.count = DRM_RESERVED_CONTEXTS;
 
-	if ( copy_to_user( argp, &res, sizeof(res) ) )
+	if (copy_to_user(argp, &res, sizeof(res)))
 		return -EFAULT;
 	return 0;
 }
@@ -402,58 +406,57 @@ int drm_resctx( struct inode *inode, struct file *filp,
  *
  * Get a new handle for the context and copy to userspace.
  */
-int drm_addctx( struct inode *inode, struct file *filp,
-		 unsigned int cmd, unsigned long arg )
+int drm_addctx(struct inode *inode, struct file *filp,
+	       unsigned int cmd, unsigned long arg)
 {
 	drm_file_t *priv = filp->private_data;
 	drm_device_t *dev = priv->head->dev;
-	drm_ctx_list_t * ctx_entry;
+	drm_ctx_list_t *ctx_entry;
 	drm_ctx_t __user *argp = (void __user *)arg;
 	drm_ctx_t ctx;
 
-	if ( copy_from_user( &ctx, argp, sizeof(ctx) ) )
+	if (copy_from_user(&ctx, argp, sizeof(ctx)))
 		return -EFAULT;
 
-	ctx.handle = drm_ctxbitmap_next( dev );
-	if ( ctx.handle == DRM_KERNEL_CONTEXT ) {
-				/* Skip kernel's context and get a new one. */
-		ctx.handle = drm_ctxbitmap_next( dev );
+	ctx.handle = drm_ctxbitmap_next(dev);
+	if (ctx.handle == DRM_KERNEL_CONTEXT) {
+		/* Skip kernel's context and get a new one. */
+		ctx.handle = drm_ctxbitmap_next(dev);
 	}
-	DRM_DEBUG( "%d\n", ctx.handle );
-	if ( ctx.handle == -1 ) {
-		DRM_DEBUG( "Not enough free contexts.\n" );
-				/* Should this return -EBUSY instead? */
+	DRM_DEBUG("%d\n", ctx.handle);
+	if (ctx.handle == -1) {
+		DRM_DEBUG("Not enough free contexts.\n");
+		/* Should this return -EBUSY instead? */
 		return -ENOMEM;
 	}
 
-	if ( ctx.handle != DRM_KERNEL_CONTEXT )
-	{
+	if (ctx.handle != DRM_KERNEL_CONTEXT) {
 		if (dev->driver->context_ctor)
 			dev->driver->context_ctor(dev, ctx.handle);
 	}
 
-	ctx_entry = drm_alloc( sizeof(*ctx_entry), DRM_MEM_CTXLIST );
-	if ( !ctx_entry ) {
+	ctx_entry = drm_alloc(sizeof(*ctx_entry), DRM_MEM_CTXLIST);
+	if (!ctx_entry) {
 		DRM_DEBUG("out of memory\n");
 		return -ENOMEM;
 	}
 
-	INIT_LIST_HEAD( &ctx_entry->head );
+	INIT_LIST_HEAD(&ctx_entry->head);
 	ctx_entry->handle = ctx.handle;
 	ctx_entry->tag = priv;
 
-	down( &dev->ctxlist_sem );
-	list_add( &ctx_entry->head, &dev->ctxlist->head );
+	down(&dev->ctxlist_sem);
+	list_add(&ctx_entry->head, &dev->ctxlist->head);
 	++dev->ctx_count;
-	up( &dev->ctxlist_sem );
+	up(&dev->ctxlist_sem);
 
-	if ( copy_to_user( argp, &ctx, sizeof(ctx) ) )
+	if (copy_to_user(argp, &ctx, sizeof(ctx)))
 		return -EFAULT;
 	return 0;
 }
 
-int drm_modctx( struct inode *inode, struct file *filp,
-		 unsigned int cmd, unsigned long arg )
+int drm_modctx(struct inode *inode, struct file *filp,
+	       unsigned int cmd, unsigned long arg)
 {
 	/* This does nothing */
 	return 0;
@@ -468,19 +471,19 @@ int drm_modctx( struct inode *inode, struct file *filp,
  * \param arg user argument pointing to a drm_ctx structure.
  * \return zero on success or a negative number on failure.
  */
-int drm_getctx( struct inode *inode, struct file *filp,
-		 unsigned int cmd, unsigned long arg )
+int drm_getctx(struct inode *inode, struct file *filp,
+	       unsigned int cmd, unsigned long arg)
 {
 	drm_ctx_t __user *argp = (void __user *)arg;
 	drm_ctx_t ctx;
 
-	if ( copy_from_user( &ctx, argp, sizeof(ctx) ) )
+	if (copy_from_user(&ctx, argp, sizeof(ctx)))
 		return -EFAULT;
 
 	/* This is 0, because we don't handle any context flags */
 	ctx.flags = 0;
 
-	if ( copy_to_user( argp, &ctx, sizeof(ctx) ) )
+	if (copy_to_user(argp, &ctx, sizeof(ctx)))
 		return -EFAULT;
 	return 0;
 }
@@ -496,18 +499,18 @@ int drm_getctx( struct inode *inode, struct file *filp,
  *
  * Calls context_switch().
  */
-int drm_switchctx( struct inode *inode, struct file *filp,
-		    unsigned int cmd, unsigned long arg )
+int drm_switchctx(struct inode *inode, struct file *filp,
+		  unsigned int cmd, unsigned long arg)
 {
 	drm_file_t *priv = filp->private_data;
 	drm_device_t *dev = priv->head->dev;
 	drm_ctx_t ctx;
 
-	if ( copy_from_user( &ctx, (drm_ctx_t __user *)arg, sizeof(ctx) ) )
+	if (copy_from_user(&ctx, (drm_ctx_t __user *) arg, sizeof(ctx)))
 		return -EFAULT;
 
-	DRM_DEBUG( "%d\n", ctx.handle );
-	return drm_context_switch( dev, dev->last_context, ctx.handle );
+	DRM_DEBUG("%d\n", ctx.handle);
+	return drm_context_switch(dev, dev->last_context, ctx.handle);
 }
 
 /**
@@ -521,18 +524,18 @@ int drm_switchctx( struct inode *inode, struct file *filp,
  *
  * Calls context_switch_complete().
  */
-int drm_newctx( struct inode *inode, struct file *filp,
-		 unsigned int cmd, unsigned long arg )
+int drm_newctx(struct inode *inode, struct file *filp,
+	       unsigned int cmd, unsigned long arg)
 {
 	drm_file_t *priv = filp->private_data;
 	drm_device_t *dev = priv->head->dev;
 	drm_ctx_t ctx;
 
-	if ( copy_from_user( &ctx, (drm_ctx_t __user *)arg, sizeof(ctx) ) )
+	if (copy_from_user(&ctx, (drm_ctx_t __user *) arg, sizeof(ctx)))
 		return -EFAULT;
 
-	DRM_DEBUG( "%d\n", ctx.handle );
-	drm_context_switch_complete( dev, ctx.handle );
+	DRM_DEBUG("%d\n", ctx.handle);
+	drm_context_switch_complete(dev, ctx.handle);
 
 	return 0;
 }
@@ -548,42 +551,41 @@ int drm_newctx( struct inode *inode, struct file *filp,
  *
  * If not the special kernel context, calls ctxbitmap_free() to free the specified context.
  */
-int drm_rmctx( struct inode *inode, struct file *filp,
-		unsigned int cmd, unsigned long arg )
+int drm_rmctx(struct inode *inode, struct file *filp,
+	      unsigned int cmd, unsigned long arg)
 {
 	drm_file_t *priv = filp->private_data;
 	drm_device_t *dev = priv->head->dev;
 	drm_ctx_t ctx;
 
-	if ( copy_from_user( &ctx, (drm_ctx_t __user *)arg, sizeof(ctx) ) )
+	if (copy_from_user(&ctx, (drm_ctx_t __user *) arg, sizeof(ctx)))
 		return -EFAULT;
 
-	DRM_DEBUG( "%d\n", ctx.handle );
-	if ( ctx.handle == DRM_KERNEL_CONTEXT + 1 ) {
+	DRM_DEBUG("%d\n", ctx.handle);
+	if (ctx.handle == DRM_KERNEL_CONTEXT + 1) {
 		priv->remove_auth_on_close = 1;
 	}
-	if ( ctx.handle != DRM_KERNEL_CONTEXT ) {
+	if (ctx.handle != DRM_KERNEL_CONTEXT) {
 		if (dev->driver->context_dtor)
 			dev->driver->context_dtor(dev, ctx.handle);
-		drm_ctxbitmap_free( dev, ctx.handle );
+		drm_ctxbitmap_free(dev, ctx.handle);
 	}
 
-	down( &dev->ctxlist_sem );
-	if ( !list_empty( &dev->ctxlist->head ) ) {
+	down(&dev->ctxlist_sem);
+	if (!list_empty(&dev->ctxlist->head)) {
 		drm_ctx_list_t *pos, *n;
 
-		list_for_each_entry_safe( pos, n, &dev->ctxlist->head, head ) {
-			if ( pos->handle == ctx.handle ) {
-				list_del( &pos->head );
-				drm_free( pos, sizeof(*pos), DRM_MEM_CTXLIST );
+		list_for_each_entry_safe(pos, n, &dev->ctxlist->head, head) {
+			if (pos->handle == ctx.handle) {
+				list_del(&pos->head);
+				drm_free(pos, sizeof(*pos), DRM_MEM_CTXLIST);
 				--dev->ctx_count;
 			}
 		}
 	}
-	up( &dev->ctxlist_sem );
+	up(&dev->ctxlist_sem);
 
 	return 0;
 }
 
 /*@}*/
-

drivers/char/drm/drm_dma.c

 /**
- * \file drm_dma.h 
+ * \file drm_dma.c
  * DMA IOCTL and function support
  *
  * \author Rickard E. (Rik) Faith <faith@valinux.com>
@@ -37,23 +37,23 @@
 
 /**
  * Initialize the DMA data.
- * 
+ *
  * \param dev DRM device.
  * \return zero on success or a negative value on failure.
  *
  * Allocate and initialize a drm_device_dma structure.
  */
-int drm_dma_setup( drm_device_t *dev )
+int drm_dma_setup(drm_device_t * dev)
 {
 	int i;
 
-	dev->dma = drm_alloc( sizeof(*dev->dma), DRM_MEM_DRIVER );
-	if ( !dev->dma )
+	dev->dma = drm_alloc(sizeof(*dev->dma), DRM_MEM_DRIVER);
+	if (!dev->dma)
 		return -ENOMEM;
 
-	memset( dev->dma, 0, sizeof(*dev->dma) );
+	memset(dev->dma, 0, sizeof(*dev->dma));
 
-	for ( i = 0 ; i <= DRM_MAX_ORDER ; i++ )
+	for (i = 0; i <= DRM_MAX_ORDER; i++)
 		memset(&dev->dma->bufs[i], 0, sizeof(dev->dma->bufs[0]));
 
 	return 0;
@@ -67,14 +67,15 @@ int drm_dma_setup( drm_device_t *dev )
  * Free all pages associated with DMA buffers, the buffers and pages lists, and
  * finally the the drm_device::dma structure itself.
  */
-void drm_dma_takedown(drm_device_t *dev)
+void drm_dma_takedown(drm_device_t * dev)
 {
-	drm_device_dma_t  *dma = dev->dma;
-	int		  i, j;
+	drm_device_dma_t *dma = dev->dma;
+	int i, j;
 
-	if (!dma) return;
+	if (!dma)
+		return;
 
-				/* Clear dma buffers */
+	/* Clear dma buffers */
 	for (i = 0; i <= DRM_MAX_ORDER; i++) {
 		if (dma->bufs[i].seg_count) {
 			DRM_DEBUG("order %d: buf_count = %d,"
@@ -85,64 +86,63 @@ void drm_dma_takedown(drm_device_t *dev)
 			for (j = 0; j < dma->bufs[i].seg_count; j++) {
 				if (dma->bufs[i].seglist[j]) {
 					drm_free_pages(dma->bufs[i].seglist[j],
-							dma->bufs[i].page_order,
-							DRM_MEM_DMA);
+						       dma->bufs[i].page_order,
+						       DRM_MEM_DMA);
 				}
 			}
 			drm_free(dma->bufs[i].seglist,
-				  dma->bufs[i].seg_count
-				  * sizeof(*dma->bufs[0].seglist),
-				  DRM_MEM_SEGS);
+				 dma->bufs[i].seg_count
+				 * sizeof(*dma->bufs[0].seglist), DRM_MEM_SEGS);
 		}
-	   	if (dma->bufs[i].buf_count) {
-		   	for (j = 0; j < dma->bufs[i].buf_count; j++) {
+		if (dma->bufs[i].buf_count) {
+			for (j = 0; j < dma->bufs[i].buf_count; j++) {
 				if (dma->bufs[i].buflist[j].dev_private) {
-					drm_free(dma->bufs[i].buflist[j].dev_private,
-						  dma->bufs[i].buflist[j].dev_priv_size,
-						  DRM_MEM_BUFS);
+					drm_free(dma->bufs[i].buflist[j].
+						 dev_private,
+						 dma->bufs[i].buflist[j].
+						 dev_priv_size, DRM_MEM_BUFS);
 				}
 			}
-		   	drm_free(dma->bufs[i].buflist,
-				  dma->bufs[i].buf_count *
-				  sizeof(*dma->bufs[0].buflist),
-				  DRM_MEM_BUFS);
+			drm_free(dma->bufs[i].buflist,
+				 dma->bufs[i].buf_count *
+				 sizeof(*dma->bufs[0].buflist), DRM_MEM_BUFS);
 		}
 	}
 
 	if (dma->buflist) {
 		drm_free(dma->buflist,
-			  dma->buf_count * sizeof(*dma->buflist),
-			  DRM_MEM_BUFS);
+			 dma->buf_count * sizeof(*dma->buflist), DRM_MEM_BUFS);
 	}
 
 	if (dma->pagelist) {
 		drm_free(dma->pagelist,
-			  dma->page_count * sizeof(*dma->pagelist),
-			  DRM_MEM_PAGES);
+			 dma->page_count * sizeof(*dma->pagelist),
+			 DRM_MEM_PAGES);
 	}
 	drm_free(dev->dma, sizeof(*dev->dma), DRM_MEM_DRIVER);
 	dev->dma = NULL;
 }
 
-
 /**
  * Free a buffer.
  *
  * \param dev DRM device.
  * \param buf buffer to free.
- * 
+ *
  * Resets the fields of \p buf.
  */
-void drm_free_buffer(drm_device_t *dev, drm_buf_t *buf)
+void drm_free_buffer(drm_device_t * dev, drm_buf_t * buf)
 {
-	if (!buf) return;
+	if (!buf)
+		return;
 
-	buf->waiting  = 0;
-	buf->pending  = 0;
-	buf->filp     = NULL;
-	buf->used     = 0;
+	buf->waiting = 0;
+	buf->pending = 0;
+	buf->filp = NULL;
+	buf->used = 0;
 
-	if (drm_core_check_feature(dev, DRIVER_DMA_QUEUE) && waitqueue_active(&buf->dma_wait)) {
+	if (drm_core_check_feature(dev, DRIVER_DMA_QUEUE)
+	    && waitqueue_active(&buf->dma_wait)) {
 		wake_up_interruptible(&buf->dma_wait);
 	}
 }
@@ -154,12 +154,13 @@ void drm_free_buffer(drm_device_t *dev, drm_buf_t *buf)
  *
  * Frees each buffer associated with \p filp not already on the hardware.
  */
-void drm_core_reclaim_buffers(drm_device_t *dev, struct file *filp)
+void drm_core_reclaim_buffers(drm_device_t * dev, struct file *filp)
 {
 	drm_device_dma_t *dma = dev->dma;
-	int		 i;
+	int i;
 
-	if (!dma) return;
+	if (!dma)
+		return;
 	for (i = 0; i < dma->buf_count; i++) {
 		if (dma->buflist[i]->filp == filp) {
 			switch (dma->buflist[i]->list) {
@@ -176,5 +177,5 @@ void drm_core_reclaim_buffers(drm_device_t *dev, struct file *filp)
 		}
 	}
 }
-EXPORT_SYMBOL(drm_core_reclaim_buffers);
 
+EXPORT_SYMBOL(drm_core_reclaim_buffers);

drivers/char/drm/drm_drawable.c

 /**
- * \file drm_drawable.h 
+ * \file drm_drawable.c
  * IOCTLs for drawables
  *
  * \author Rickard E. (Rik) Faith <faith@valinux.com>
@@ -37,20 +37,20 @@
 
 /** No-op. */
 int drm_adddraw(struct inode *inode, struct file *filp,
-		 unsigned int cmd, unsigned long arg)
+		unsigned int cmd, unsigned long arg)
 {
 	drm_draw_t draw;
 
 	draw.handle = 0;	/* NOOP */
 	DRM_DEBUG("%d\n", draw.handle);
-	if (copy_to_user((drm_draw_t __user *)arg, &draw, sizeof(draw)))
+	if (copy_to_user((drm_draw_t __user *) arg, &draw, sizeof(draw)))
 		return -EFAULT;
 	return 0;
 }
 
 /** No-op. */
 int drm_rmdraw(struct inode *inode, struct file *filp,
-		unsigned int cmd, unsigned long arg)
+	       unsigned int cmd, unsigned long arg)
 {
 	return 0;		/* NOOP */
 }

drivers/char/drm/drm_init.c

 /**
- * \file drm_init.h 
+ * \file drm_init.c
  * Setup/Cleanup for DRM
  *
  * \author Rickard E. (Rik) Faith <faith@valinux.com>
@@ -43,10 +43,11 @@
 int drm_cpu_valid(void)
 {
 #if defined(__i386__)
-	if (boot_cpu_data.x86 == 3) return 0; /* No cmpxchg on a 386 */
+	if (boot_cpu_data.x86 == 3)
+		return 0;	/* No cmpxchg on a 386 */
 #endif
 #if defined(__sparc__) && !defined(__sparc_v9__)
-	return 0; /* No cmpxchg before v9 sparc. */
+	return 0;		/* No cmpxchg before v9 sparc. */
 #endif
 	return 1;
 }

drivers/char/drm/drm_os_linux.h

@@ -3,7 +3,6 @@
  * OS abstraction macros.
  */
 
-
 #include <linux/interrupt.h>	/* For task queue support */
 #include <linux/delay.h>
 
@@ -47,25 +46,25 @@
 #else
 /* define some dummy types for non AGP supporting kernels */
 struct no_agp_kern {
-  unsigned long aper_base;
-  unsigned long aper_size;
+	unsigned long aper_base;
+	unsigned long aper_size;
 };
 #define DRM_AGP_MEM             int
 #define DRM_AGP_KERN            struct no_agp_kern
 #endif
 
 #if !(__OS_HAS_MTRR)
-static __inline__ int mtrr_add (unsigned long base, unsigned long size,
-                                unsigned int type, char increment)
+static __inline__ int mtrr_add(unsigned long base, unsigned long size,
+			       unsigned int type, char increment)
 {
 	return -ENODEV;
 }
 
-static __inline__ int mtrr_del (int reg, unsigned long base,
-                                unsigned long size)
+static __inline__ int mtrr_del(int reg, unsigned long base, unsigned long size)
 {
 	return -ENODEV;
 }
+
 #define MTRR_TYPE_WRCOMB     1
 
 #endif
@@ -99,7 +98,7 @@ static __inline__ int mtrr_del (int reg, unsigned long base,
 
 #define DRM_GET_PRIV_WITH_RETURN(_priv, _filp) _priv = _filp->private_data
 
-/** 
+/**
  * Get the pointer to the SAREA.
  *
  * Searches the SAREA on the mapping lists and points drm_device::sarea to it.
@@ -143,7 +142,5 @@ do {								\
 	remove_wait_queue(&(queue), &entry);			\
 } while (0)
 
-
 #define DRM_WAKEUP( queue ) wake_up_interruptible( queue )
 #define DRM_INIT_WAITQUEUE( queue ) init_waitqueue_head( queue )
- 

drivers/char/drm/drm_pci.c

@@ -77,7 +77,7 @@ drm_dma_handle_t *drm_pci_alloc(drm_device_t * dev, size_t size, size_t align,
 	dmah = kmalloc(sizeof(drm_dma_handle_t), GFP_KERNEL);
 	if (!dmah)
 		return NULL;
-	
+
 	dmah->size = size;
 	dmah->vaddr = pci_alloc_consistent(dev->pdev, size, &dmah->busaddr);
 
@@ -106,6 +106,7 @@ drm_dma_handle_t *drm_pci_alloc(drm_device_t * dev, size_t size, size_t align,
 
 	return dmah;
 }
+
 EXPORT_SYMBOL(drm_pci_alloc);
 
 /**
@@ -113,8 +114,7 @@ EXPORT_SYMBOL(drm_pci_alloc);
  *
  * This function is for internal use in the Linux-specific DRM core code.
  */
-void
-__drm_pci_free(drm_device_t * dev, drm_dma_handle_t *dmah)
+void __drm_pci_free(drm_device_t * dev, drm_dma_handle_t * dmah)
 {
 #ifdef DRM_DEBUG_MEMORY
 	int area = DRM_MEM_DMA;
@@ -150,12 +150,12 @@ __drm_pci_free(drm_device_t * dev, drm_dma_handle_t *dmah)
 /**
  * \brief Free a PCI consistent memory block
  */
-void
-drm_pci_free(drm_device_t *dev, drm_dma_handle_t *dmah)
+void drm_pci_free(drm_device_t * dev, drm_dma_handle_t * dmah)
 {
 	__drm_pci_free(dev, dmah);
 	kfree(dmah);
 }
+
 EXPORT_SYMBOL(drm_pci_free);
 
 /*@}*/

drivers/char/drm/drm_pciids.h

@@ -234,4 +234,3 @@
 	{0x8086, 0x2592, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
 	{0x8086, 0x2772, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
 	{0, 0, 0}
-

drivers/char/drm/sis_drm.h

@@ -39,4 +39,4 @@ typedef struct {
 	unsigned int offset, size;
 } drm_sis_fb_t;
 
-#endif /* __SIS_DRM_H__ */
+#endif				/* __SIS_DRM_H__ */