remove DRM read, poll and write_string

6 files changed, 0 insertions, 112 deletions

diff --git a/linux-core/drmP.h b/linux-core/drmP.h
index 7c7428ba2..8b701467c 100644
--- a/linux-core/drmP.h
+++ b/linux-core/drmP.h
@@ -697,13 +697,7 @@ extern int           DRM(unlock)(struct inode *inode, struct file *filp,
 extern int	     DRM(open_helper)(struct inode *inode, struct file *filp,
 				      drm_device_t *dev);
 extern int	     DRM(flush)(struct file *filp);
-extern int	     DRM(release_fuck)(struct inode *inode, struct file *filp);
 extern int	     DRM(fasync)(int fd, struct file *filp, int on);
-extern ssize_t	     DRM(read)(struct file *filp, char *buf, size_t count,
-			       loff_t *off);
-extern int	     DRM(write_string)(drm_device_t *dev, const char *s);
-extern unsigned int  DRM(poll)(struct file *filp,
-			       struct poll_table_struct *wait);
 
 				/* Mapping support (drm_vm.h) */
 extern struct page *DRM(vm_nopage)(struct vm_area_struct *vma,
diff --git a/linux-core/drm_context.c b/linux-core/drm_context.c
index 88b485ff2..fab0885b5 100644
--- a/linux-core/drm_context.c
+++ b/linux-core/drm_context.c
@@ -242,9 +242,6 @@ int DRM(context_switch)( drm_device_t *dev, int old, int new )
 
         if ( DRM(flags) & DRM_FLAG_NOCTX ) {
                 DRM(context_switch_complete)( dev, new );
-        } else {
-                sprintf( buf, "C %d %d\n", old, new );
-                DRM(write_string)( dev, buf );
         }
 
         return 0;
@@ -455,9 +452,6 @@ int DRM(context_switch)(drm_device_t *dev, int old, int new)
 
 	if (DRM(flags) & DRM_FLAG_NOCTX) {
 		DRM(context_switch_complete)(dev, new);
-	} else {
-		sprintf(buf, "C %d %d\n", old, new);
-		DRM(write_string)(dev, buf);
 	}
 
 	atomic_dec(&q->use_count);
diff --git a/linux-core/drm_drv.c b/linux-core/drm_drv.c
index b2070d322..848a2f110 100644
--- a/linux-core/drm_drv.c
+++ b/linux-core/drm_drv.c
@@ -121,9 +121,7 @@ static struct file_operations	DRM(fops) = {	\
 	.release = DRM(release),		\
 	.ioctl	 = DRM(ioctl),			\
 	.mmap	 = DRM(mmap),			\
-	.read	 = DRM(read),			\
 	.fasync  = DRM(fasync),			\
-	.poll	 = DRM(poll),			\
 }
 #endif
 
diff --git a/linux-core/drm_fops.c b/linux-core/drm_fops.c
index 833409f09..3baac693b 100644
--- a/linux-core/drm_fops.c
+++ b/linux-core/drm_fops.c
@@ -114,97 +114,3 @@ int DRM(fasync)(int fd, struct file *filp, int on)
 }
 
 
-/* The drm_read and drm_write_string code (especially that which manages
-   the circular buffer), is based on Alessandro Rubini's LINUX DEVICE
-   DRIVERS (Cambridge: O'Reilly, 1998), pages 111-113. */
-
-ssize_t DRM(read)(struct file *filp, char *buf, size_t count, loff_t *off)
-{
-	drm_file_t    *priv   = filp->private_data;
-	drm_device_t  *dev    = priv->dev;
-	int	      left;
-	int	      avail;
-	int	      send;
-	int	      cur;
-
-	DRM_DEBUG("%p, %p\n", dev->buf_rp, dev->buf_wp);
-
-	while (dev->buf_rp == dev->buf_wp) {
-		DRM_DEBUG("  sleeping\n");
-		if (filp->f_flags & O_NONBLOCK) {
-			return -EAGAIN;
-		}
-		interruptible_sleep_on(&dev->buf_readers);
-		if (signal_pending(current)) {
-			DRM_DEBUG("  interrupted\n");
-			return -ERESTARTSYS;
-		}
-		DRM_DEBUG("  awake\n");
-	}
-
-	left  = (dev->buf_rp + DRM_BSZ - dev->buf_wp) % DRM_BSZ;
-	avail = DRM_BSZ - left;
-	send  = DRM_MIN(avail, count);
-
-	while (send) {
-		if (dev->buf_wp > dev->buf_rp) {
-			cur = DRM_MIN(send, dev->buf_wp - dev->buf_rp);
-		} else {
-			cur = DRM_MIN(send, dev->buf_end - dev->buf_rp);
-		}
-		if (copy_to_user(buf, dev->buf_rp, cur))
-			return -EFAULT;
-		dev->buf_rp += cur;
-		if (dev->buf_rp == dev->buf_end) dev->buf_rp = dev->buf;
-		send -= cur;
-	}
-
-	wake_up_interruptible(&dev->buf_writers);
-	return DRM_MIN(avail, count);;
-}
-
-int DRM(write_string)(drm_device_t *dev, const char *s)
-{
-	int left   = (dev->buf_rp + DRM_BSZ - dev->buf_wp) % DRM_BSZ;
-	int send   = strlen(s);
-	int count;
-
-	DRM_DEBUG("%d left, %d to send (%p, %p)\n",
-		  left, send, dev->buf_rp, dev->buf_wp);
-
-	if (left == 1 || dev->buf_wp != dev->buf_rp) {
-		DRM_ERROR("Buffer not empty (%d left, wp = %p, rp = %p)\n",
-			  left,
-			  dev->buf_wp,
-			  dev->buf_rp);
-	}
-
-	while (send) {
-		if (dev->buf_wp >= dev->buf_rp) {
-			count = DRM_MIN(send, dev->buf_end - dev->buf_wp);
-			if (count == left) --count; /* Leave a hole */
-		} else {
-			count = DRM_MIN(send, dev->buf_rp - dev->buf_wp - 1);
-		}
-		strncpy(dev->buf_wp, s, count);
-		dev->buf_wp += count;
-		if (dev->buf_wp == dev->buf_end) dev->buf_wp = dev->buf;
-		send -= count;
-	}
-
-	if (dev->buf_async) kill_fasync(&dev->buf_async, SIGIO, POLL_IN);
-
-	DRM_DEBUG("waking\n");
-	wake_up_interruptible(&dev->buf_readers);
-	return 0;
-}
-
-unsigned int DRM(poll)(struct file *filp, struct poll_table_struct *wait)
-{
-	drm_file_t   *priv = filp->private_data;
-	drm_device_t *dev  = priv->dev;
-
-	poll_wait(filp, &dev->buf_readers, wait);
-	if (dev->buf_wp != dev->buf_rp) return POLLIN | POLLRDNORM;
-	return 0;
-}
diff --git a/linux-core/i810_dma.c b/linux-core/i810_dma.c
index c06fd9151..a37271643 100644
--- a/linux-core/i810_dma.c
+++ b/linux-core/i810_dma.c
@@ -122,9 +122,7 @@ static struct file_operations i810_buffer_fops = {
 	.release = DRM(release),
 	.ioctl	 = DRM(ioctl),
 	.mmap	 = i810_mmap_buffers,
-	.read	 = DRM(read),
 	.fasync  = DRM(fasync),
-      	.poll	 = DRM(poll),
 };
 
 int i810_mmap_buffers(struct file *filp, struct vm_area_struct *vma)
diff --git a/linux-core/i830_dma.c b/linux-core/i830_dma.c
index b76d2b11e..df58e9900 100644
--- a/linux-core/i830_dma.c
+++ b/linux-core/i830_dma.c
@@ -130,9 +130,7 @@ static struct file_operations i830_buffer_fops = {
 	.release = DRM(release),
 	.ioctl	 = DRM(ioctl),
 	.mmap	 = i830_mmap_buffers,
-	.read	 = DRM(read),
 	.fasync  = DRM(fasync),
-      	.poll	 = DRM(poll),
 };
 
 int i830_mmap_buffers(struct file *filp, struct vm_area_struct *vma)