Add a drm_poll function to the tdfx driver. This fixes the problem with

3.9.17 where the server hangs when the mouse is first moved.

5 files changed, 26 insertions, 5 deletions

diff --git a/linux-core/drmP.h b/linux-core/drmP.h
index e01cf28b..0d5f7b8f 100644
--- a/linux-core/drmP.h
+++ b/linux-core/drmP.h
@@ -25,7 +25,7 @@
  * DEALINGS IN THE SOFTWARE.
  * 
  * $PI: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/drmP.h,v 1.58 1999/08/30 13:05:00 faith Exp $
- * $XFree86: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/drmP.h,v 1.2 1999/12/14 01:33:56 robin Exp $
+ * $XFree86: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/drmP.h,v 1.1 1999/09/25 14:37:59 dawes Exp $
  * 
  */
 
@@ -49,6 +49,10 @@
 #ifdef CONFIG_MTRR
 #include <asm/mtrr.h>
 #endif
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,1,0)
+#include <asm/spinlock.h>
+#include <linux/poll.h>
+#endif
 #include "drm.h"
 
 #define DRM_DEBUG_CODE 2	  /* Include debugging code (if > 1, then
@@ -478,6 +482,7 @@ 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 (vm.c) */
 #if LINUX_VERSION_CODE < 0x020317
diff --git a/linux-core/tdfx_drv.c b/linux-core/tdfx_drv.c
index 31924254..769d7adf 100644
--- a/linux-core/tdfx_drv.c
+++ b/linux-core/tdfx_drv.c
@@ -25,7 +25,7 @@
  * DEALINGS IN THE SOFTWARE.
  * 
  * $PI$
- * $XFree86: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/tdfx_drv.c,v 1.1 1999/12/14 01:49:22 robin Exp $
+ * $XFree86$
  *
  */
 
@@ -53,6 +53,7 @@ static struct file_operations tdfx_fops = {
 	mmap:	 drm_mmap,
 	read:	 drm_read,
 	fasync:	 drm_fasync,
+	poll: drm_poll
 };
 
 static struct miscdevice      tdfx_misc = {
diff --git a/linux/drmP.h b/linux/drmP.h
index e01cf28b..0d5f7b8f 100644
--- a/linux/drmP.h
+++ b/linux/drmP.h
@@ -25,7 +25,7 @@
  * DEALINGS IN THE SOFTWARE.
  * 
  * $PI: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/drmP.h,v 1.58 1999/08/30 13:05:00 faith Exp $
- * $XFree86: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/drmP.h,v 1.2 1999/12/14 01:33:56 robin Exp $
+ * $XFree86: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/drmP.h,v 1.1 1999/09/25 14:37:59 dawes Exp $
  * 
  */
 
@@ -49,6 +49,10 @@
 #ifdef CONFIG_MTRR
 #include <asm/mtrr.h>
 #endif
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,1,0)
+#include <asm/spinlock.h>
+#include <linux/poll.h>
+#endif
 #include "drm.h"
 
 #define DRM_DEBUG_CODE 2	  /* Include debugging code (if > 1, then
@@ -478,6 +482,7 @@ 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 (vm.c) */
 #if LINUX_VERSION_CODE < 0x020317
diff --git a/linux/fops.c b/linux/fops.c
index 39bfdbb8..0bdf2135 100644
--- a/linux/fops.c
+++ b/linux/fops.c
@@ -25,7 +25,7 @@
  * DEALINGS IN THE SOFTWARE.
  * 
  * $PI: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/fops.c,v 1.3 1999/08/20 15:36:45 faith Exp $
- * $XFree86: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/fops.c,v 1.2 1999/12/14 01:33:56 robin Exp $
+ * $XFree86: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/fops.c,v 1.1 1999/09/25 14:37:59 dawes Exp $
  *
  */
 
@@ -221,3 +221,12 @@ int drm_write_string(drm_device_t *dev, const char *s)
 	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/tdfx_drv.c b/linux/tdfx_drv.c
index 31924254..769d7adf 100644
--- a/linux/tdfx_drv.c
+++ b/linux/tdfx_drv.c
@@ -25,7 +25,7 @@
  * DEALINGS IN THE SOFTWARE.
  * 
  * $PI$
- * $XFree86: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/tdfx_drv.c,v 1.1 1999/12/14 01:49:22 robin Exp $
+ * $XFree86$
  *
  */
 
@@ -53,6 +53,7 @@ static struct file_operations tdfx_fops = {
 	mmap:	 drm_mmap,
 	read:	 drm_read,
 	fasync:	 drm_fasync,
+	poll: drm_poll
 };
 
 static struct miscdevice      tdfx_misc = {