Remove a bunch of dead code and fix spelling of a couple of comments.

7 files changed, 6 insertions, 148 deletions

diff --git a/bsd-core/drmP.h b/bsd-core/drmP.h
index 69726f68..1dae1201 100644
--- a/bsd-core/drmP.h
+++ b/bsd-core/drmP.h
@@ -80,12 +80,8 @@ typedef struct drm_file drm_file_t;
 #define DRM_HASH_SIZE	      16 /* Size of key hash table		  */
 #define DRM_KERNEL_CONTEXT    0	 /* Change drm_resctx if changed	  */
 #define DRM_RESERVED_CONTEXTS 1	 /* Change drm_resctx if changed	  */
-#define DRM_LOOPING_LIMIT     5000000
-#define DRM_BSZ		      1024 /* Buffer size for /dev/drm? output	  */
-#define DRM_LOCK_SLICE	      1	/* Time slice for lock, in jiffies	  */
 
 #define DRM_FLAG_DEBUG	  0x01
-#define DRM_FLAG_NOCTX	  0x02
 
 #define DRM_MEM_DMA	   0
 #define DRM_MEM_SAREA	   1
@@ -110,12 +106,6 @@ typedef struct drm_file drm_file_t;
 
 #define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8)
 
-				/* Backward compatibility section */
-				/* _PAGE_WT changed to _PAGE_PWT in 2.2.6 */
-#ifndef _PAGE_PWT
-#define _PAGE_PWT _PAGE_WT
-#endif
-
 				/* Mapping helper macros */
 #define DRM_IOREMAP(map)						\
 	(map)->handle = DRM(ioremap)( dev, map )
@@ -143,11 +133,6 @@ typedef struct drm_file drm_file_t;
 } while(0)
 
 
-typedef struct drm_pci_list {
-	u16 vendor;
-	u16 device;
-} drm_pci_list_t;
-
 typedef struct drm_ioctl_desc {
 	int		     (*func)(DRM_IOCTL_ARGS);
 	int		     auth_needed;
@@ -271,22 +256,6 @@ typedef struct drm_lock_data {
 } drm_lock_data_t;
 
 typedef struct drm_device_dma {
-#if 0
-				/* Performance Counters */
-	atomic_t	  total_prio;	/* Total DRM_DMA_PRIORITY	   */
-	atomic_t	  total_bytes;	/* Total bytes DMA'd		   */
-	atomic_t	  total_dmas;	/* Total DMA buffers dispatched	   */
-
-	atomic_t	  total_missed_dma;  /* Missed drm_do_dma	    */
-	atomic_t	  total_missed_lock; /* Missed lock in drm_do_dma   */
-	atomic_t	  total_missed_free; /* Missed drm_free_this_buffer */
-	atomic_t	  total_missed_sched;/* Missed drm_dma_schedule	    */
-
-	atomic_t	  total_tried;	/* Tried next_buffer		    */
-	atomic_t	  total_hit;	/* Sent next_buffer		    */
-	atomic_t	  total_lost;	/* Lost interrupt		    */
-#endif
-
 	drm_buf_entry_t	  bufs[DRM_MAX_ORDER+1];
 	int		  buf_count;
 	drm_buf_t	  **buflist;	/* Vector of pointers info bufs	   */
@@ -337,11 +306,6 @@ typedef struct drm_sg_mem {
 	dma_addr_t	*busaddr;
 } drm_sg_mem_t;
 
-typedef struct drm_sigdata {
-	int           context;
-	drm_hw_lock_t *lock;
-} drm_sigdata_t;
-
 typedef struct drm_local_map {
 	unsigned long	offset;	 /* Physical address (0 for SAREA)*/
 	unsigned long	size;	 /* Physical size (bytes)	    */
@@ -380,11 +344,8 @@ struct drm_device {
 	device_t	  device;	/* Device instance from newbus     */
 #endif
 	dev_t		  devnode;	/* Device number for mknod	   */
-	char		  *devname;	/* For /proc/interrupts		   */
 
-	int		  blocked;	/* Blocked due to VC switch?	   */
 	int		  flags;	/* Flags to open(2)		   */
-	int		  writable;	/* Opened with FWRITE		   */
 
 				/* Locks */
 	DRM_SPINTYPE	  count_lock;	/* For inuse, open_count, buf_use  */
@@ -444,7 +405,7 @@ struct drm_device {
 #if __HAVE_VBL_IRQ
    	wait_queue_head_t vbl_queue;	/* vbl wait channel */
    	atomic_t          vbl_received;
-#if 0 /* vbl signals are untested, ntested */
+#if 0 /* vbl signals are untested */
 	struct drm_vbl_sig_list vbl_sig_list;
 	DRM_SPINTYPE      vbl_lock;
 #endif
@@ -465,8 +426,6 @@ struct drm_device {
 	drm_sg_mem_t      *sg;  /* Scatter gather memory */
 	atomic_t          *ctx_bitmap;
 	void		  *dev_private;
-	drm_sigdata_t     sigdata; /* For block_all_signals */
-	sigset_t          sigmask;
 };
 
 extern int	     DRM(flags);
@@ -522,7 +481,6 @@ extern int	     DRM(flush_unblock)(drm_device_t *dev, int context,
 					drm_lock_flags_t flags);
 extern int	     DRM(flush_block_and_flush)(drm_device_t *dev, int context,
 						drm_lock_flags_t flags);
-extern int           DRM(notifier)(void *priv);
 
 				/* Buffer management support (drm_bufs.h) */
 extern int	     DRM(order)( unsigned long size );
diff --git a/bsd-core/drm_context.c b/bsd-core/drm_context.c
index 7761e9b8..c7823ac1 100644
--- a/bsd-core/drm_context.c
+++ b/bsd-core/drm_context.c
@@ -218,10 +218,6 @@ int DRM(context_switch)( drm_device_t *dev, int old, int new )
                 return 0;
         }
 
-        if ( DRM(flags) & DRM_FLAG_NOCTX ) {
-                DRM(context_switch_complete)( dev, new );
-        }
-
         return 0;
 }
 
@@ -391,10 +387,6 @@ int DRM(context_switch)(drm_device_t *dev, int old, int new)
 		return DRM_ERR(EINVAL);
 	}
 
-	if (DRM(flags) & DRM_FLAG_NOCTX) {
-		DRM(context_switch_complete)(dev, new);
-	}
-
 	atomic_dec(&q->use_count);
 
 	return 0;
diff --git a/bsd-core/drm_drv.c b/bsd-core/drm_drv.c
index e2c32dab..8f08da46 100644
--- a/bsd-core/drm_drv.c
+++ b/bsd-core/drm_drv.c
@@ -86,12 +86,6 @@
 #ifndef __HAVE_SG
 #define __HAVE_SG			0
 #endif
-#ifndef __HAVE_KERNEL_CTX_SWITCH
-#define __HAVE_KERNEL_CTX_SWITCH	0
-#endif
-#ifndef PCI_ANY_ID
-#define PCI_ANY_ID	~0
-#endif
 
 #ifndef DRIVER_PREINIT
 #define DRIVER_PREINIT()
@@ -120,13 +114,6 @@
 #ifndef DRIVER_FOPS
 #endif
 
-/*
- * The default number of instances (minor numbers) to initialize.
- */
-#ifndef DRIVER_NUM_CARDS
-#define DRIVER_NUM_CARDS 1
-#endif
-
 #if 1 && DRM_DEBUG_CODE
 int DRM(flags) = DRM_FLAG_DEBUG;
 #else
@@ -556,12 +543,6 @@ static int DRM(takedown)( drm_device_t *dev )
 	DRM_LOCK;
 	callout_stop( &dev->timer );
 
-	if ( dev->devname ) {
-		DRM(free)( dev->devname, strlen( dev->devname ) + 1,
-			   DRM_MEM_DRIVER );
-		dev->devname = NULL;
-	}
-
 	if ( dev->unique ) {
 		DRM(free)( dev->unique, strlen( dev->unique ) + 1,
 			   DRM_MEM_DRIVER );
@@ -1020,10 +1001,9 @@ int DRM(close)(dev_t kdev, int flags, int fmt, DRM_STRUCTPROC *p)
 	device_unbusy(dev->device);
 #endif
 	if ( !--dev->open_count ) {
-		if ( atomic_read( &dev->ioctl_count ) || dev->blocked ) {
-			DRM_ERROR( "Device busy: %ld %d\n",
-				(unsigned long)atomic_read( &dev->ioctl_count ),
-				   dev->blocked );
+		if (atomic_read(&dev->ioctl_count)) {
+			DRM_ERROR("Device busy: %ld\n",
+			    (unsigned long)atomic_read( &dev->ioctl_count ));
 			DRM_SPINUNLOCK( &dev->count_lock );
 			return DRM_ERR(EBUSY);
 		}
@@ -1180,6 +1160,7 @@ int DRM(lock)( DRM_IOCTL_ARGS )
 #endif
 
         if ( !ret ) {
+		/* FIXME: Add signal blocking here */
 
 #if __HAVE_DMA_READY
                 if ( lock.flags & _DRM_LOCK_READY ) {
@@ -1191,12 +1172,6 @@ int DRM(lock)( DRM_IOCTL_ARGS )
 			DRIVER_DMA_QUIESCENT();
 		}
 #endif
-#if __HAVE_KERNEL_CTX_SWITCH
-		if ( dev->last_context != lock.context ) {
-			DRM(context_switch)(dev, dev->last_context,
-					    lock.context);
-		}
-#endif
         }
 
         DRM_DEBUG( "%d %s\n", lock.context, ret ? "interrupted" : "has lock" );
@@ -1220,25 +1195,6 @@ int DRM(unlock)( DRM_IOCTL_ARGS )
 
 	atomic_inc( &dev->counts[_DRM_STAT_UNLOCKS] );
 
-#if __HAVE_KERNEL_CTX_SWITCH
-	/* We no longer really hold it, but if we are the next
-	 * agent to request it then we should just be able to
-	 * take it immediately and not eat the ioctl.
-	 */
-	dev->lock.pid = 0;
-	{
-		__volatile__ unsigned int *plock = &dev->lock.hw_lock->lock;
-		unsigned int old, new, prev, ctx;
-
-		ctx = lock.context;
-		do {
-			old  = *plock;
-			new  = ctx;
-			prev = cmpxchg(plock, old, new);
-		} while (prev != old);
-	}
-	wake_up_interruptible(&dev->lock.lock_queue);
-#else
 	DRM(lock_transfer)( dev, &dev->lock.hw_lock->lock,
 			    DRM_KERNEL_CONTEXT );
 #if __HAVE_DMA_SCHEDULE
@@ -1253,7 +1209,6 @@ int DRM(unlock)( DRM_IOCTL_ARGS )
 			DRM_ERROR( "\n" );
 		}
 	}
-#endif /* !__HAVE_KERNEL_CTX_SWITCH */
 
 	return 0;
 }
diff --git a/bsd-core/drm_ioctl.c b/bsd-core/drm_ioctl.c
index 270b2bb5..bf0083d9 100644
--- a/bsd-core/drm_ioctl.c
+++ b/bsd-core/drm_ioctl.c
@@ -121,15 +121,6 @@ int DRM(setunique)( DRM_IOCTL_ARGS )
 
 	dev->unique[dev->unique_len] = '\0';
 
-	dev->devname = DRM(alloc)(strlen(dev->name) + strlen(dev->unique) + 2,
-				  DRM_MEM_DRIVER);
-	if(!dev->devname) {
-		DRM(free)(dev->devname, sizeof(*dev->devname), DRM_MEM_DRIVER);
-		return DRM_ERR(ENOMEM);
-	}
-	sprintf(dev->devname, "%s@%s", dev->name, dev->unique);
-
-
 	return 0;
 }
 
diff --git a/bsd-core/drm_lock.c b/bsd-core/drm_lock.c
index 3bab78ef..a859b178 100644
--- a/bsd-core/drm_lock.c
+++ b/bsd-core/drm_lock.c
@@ -202,35 +202,3 @@ int DRM(finish)( DRM_IOCTL_ARGS )
 	DRM(flush_unblock)(dev, lock.context, lock.flags);
 	return ret;
 }
-
-/* If we get here, it means that the process has called DRM_IOCTL_LOCK
-   without calling DRM_IOCTL_UNLOCK.
-
-   If the lock is not held, then let the signal proceed as usual.
-
-   If the lock is held, then set the contended flag and keep the signal
-   blocked.
-
-
-   Return 1 if the signal should be delivered normally.
-   Return 0 if the signal should be blocked.  */
-
-int DRM(notifier)(void *priv)
-{
-	drm_sigdata_t *s = (drm_sigdata_t *)priv;
-	unsigned int  old, new;
-
-				/* Allow signal delivery if lock isn't held */
-	if (!_DRM_LOCK_IS_HELD(s->lock->lock)
-	    || _DRM_LOCKING_CONTEXT(s->lock->lock) != s->context) return 1;
-
-				/* Otherwise, set flag to force call to
-                                   drmUnlock */
-	do {
-		old  = s->lock->lock;
-		new  = old | _DRM_LOCK_CONT;
-	} while (!atomic_cmpset_int(&s->lock->lock, old, new));
-
-	return 0;
-}
-
diff --git a/bsd-core/drm_os_freebsd.h b/bsd-core/drm_os_freebsd.h
index 4168fce1..41cd0804 100644
--- a/bsd-core/drm_os_freebsd.h
+++ b/bsd-core/drm_os_freebsd.h
@@ -218,7 +218,7 @@ while (!condition) {							\
 #endif
 
 #define malloctype DRM(M_DRM)
-/* The macros confliced in the MALLOC_DEFINE */
+/* The macros conflicted in the MALLOC_DEFINE */
 MALLOC_DECLARE(malloctype);
 #undef malloctype
 
@@ -317,10 +317,8 @@ find_first_zero_bit(volatile void *p, int max)
  * exist.
  */
 #if (__FreeBSD_version < 500002 && __FreeBSD_version > 500000) || __FreeBSD_version < 420000
-/* FIXME: again, what's the exact date? */
 #define MODULE_VERSION(a,b)		struct __hack
 #define MODULE_DEPEND(a,b,c,d,e)	struct __hack
-
 #endif
 
 /* Redefinitions to make templating easy */
@@ -346,8 +344,6 @@ find_first_zero_bit(volatile void *p, int max)
 #define DRM_DEBUG(fmt, arg...)		 do { } while (0)
 #endif
 
-#define DRM_PROC_LIMIT (PAGE_SIZE-80)
-
 #if (__FreeBSD_version >= 500000) || ((__FreeBSD_version < 500000) && (__FreeBSD_version >= 410002))
 #define DRM_SYSCTL_HANDLER_ARGS	(SYSCTL_HANDLER_ARGS)
 #else
diff --git a/bsd-core/drm_os_netbsd.h b/bsd-core/drm_os_netbsd.h
index 172d036f..7a6f9821 100644
--- a/bsd-core/drm_os_netbsd.h
+++ b/bsd-core/drm_os_netbsd.h
@@ -306,8 +306,6 @@ do { \
 #define DRM_DEBUG(fmt, arg...)		 do { } while (0)
 #endif
 
-#define DRM_PROC_LIMIT (PAGE_SIZE-80)
-
 #define DRM_SYSCTL_PRINT(fmt, arg...)		\
   snprintf(buf, sizeof(buf), fmt, ##arg);	\
   error = SYSCTL_OUT(req, buf, strlen(buf));	\