drm: rename driver hooks more understandably

Rename the driver hooks in the DRM to something a little more understandable:
preinit         ->      load
postinit        ->      (removed)
presetup        ->      firstopen
postsetup       ->      (removed)
open_helper     ->      open
prerelease      ->      preclose
free_filp_priv  ->      postclose
pretakedown     ->      lastclose
postcleanup     ->      unload
release         ->      reclaim_buffers_locked
version         ->      (removed)

postinit and version were replaced with generic code in the Linux DRM (drivers
now set their version numbers and description in the driver structure, like on
BSD).  postsetup wasn't used at all.  Fixes the savage hooks for
initializing and tearing down mappings at the right times.  Testing involved at
least starting X, running glxgears, killing glxgears, exiting X, and repeating.

Tested on:      FreeBSD (g200, g400, r200, r128)
                Linux (r200, savage4)

From: Eric Anholt <anholt@freebsd.org>
Signed-off-by: Dave Airlie <airlied@linux.ie>

1 files changed, 16 insertions, 19 deletions

diff --git a/drivers/char/drm/drm_fops.c b/drivers/char/drm/drm_fops.c
index bf0a740122bf..f57f7d1a281e 100644
--- a/drivers/char/drm/drm_fops.c
+++ b/drivers/char/drm/drm_fops.c
@@ -45,8 +45,8 @@ static int drm_setup(drm_device_t * dev)
 	int i;
 	int ret;
 
-	if (dev->driver->presetup) {
-		ret = dev->driver->presetup(dev);
+	if (dev->driver->firstopen) {
+		ret = dev->driver->firstopen(dev);
 		if (ret != 0)
 			return ret;
 	}
@@ -109,8 +109,6 @@ static int drm_setup(drm_device_t * dev)
 	 * drm_select_queue fails between the time the interrupt is
 	 * initialized and the time the queues are initialized.
 	 */
-	if (dev->driver->postsetup)
-		dev->driver->postsetup(dev);
 
 	return 0;
 }
@@ -167,7 +165,7 @@ EXPORT_SYMBOL(drm_open);
  * If the hardware lock is held then free it, and take it again for the kernel
  * context since it's necessary to reclaim buffers. Unlink the file private
  * data from its list and free it. Decreases the open count and if it reaches
- * zero calls takedown().
+ * zero calls drm_lastclose().
  */
 int drm_release(struct inode *inode, struct file *filp)
 {
@@ -180,8 +178,8 @@ int drm_release(struct inode *inode, struct file *filp)
 
 	DRM_DEBUG("open_count = %d\n", dev->open_count);
 
-	if (dev->driver->prerelease)
-		dev->driver->prerelease(dev, filp);
+	if (dev->driver->preclose)
+		dev->driver->preclose(dev, filp);
 
 	/* ========================================================
 	 * Begin inline drm_release
@@ -197,8 +195,8 @@ int drm_release(struct inode *inode, struct file *filp)
 		DRM_DEBUG("File %p released, freeing lock for context %d\n",
 			  filp, _DRM_LOCKING_CONTEXT(dev->lock.hw_lock->lock));
 
-		if (dev->driver->release)
-			dev->driver->release(dev, filp);
+		if (dev->driver->reclaim_buffers_locked)
+			dev->driver->reclaim_buffers_locked(dev, filp);
 
 		drm_lock_free(dev, &dev->lock.hw_lock->lock,
 			      _DRM_LOCKING_CONTEXT(dev->lock.hw_lock->lock));
@@ -207,7 +205,7 @@ int drm_release(struct inode *inode, struct file *filp)
 		   hardware at this point, possibly
 		   processed via a callback to the X
 		   server. */
-	} else if (dev->driver->release && priv->lock_count
+	} else if (dev->driver->reclaim_buffers_locked && priv->lock_count
 		   && dev->lock.hw_lock) {
 		/* The lock is required to reclaim buffers */
 		DECLARE_WAITQUEUE(entry, current);
@@ -237,15 +235,14 @@ int drm_release(struct inode *inode, struct file *filp)
 		__set_current_state(TASK_RUNNING);
 		remove_wait_queue(&dev->lock.lock_queue, &entry);
 		if (!retcode) {
-			if (dev->driver->release)
-				dev->driver->release(dev, filp);
+			dev->driver->reclaim_buffers_locked(dev, filp);
 			drm_lock_free(dev, &dev->lock.hw_lock->lock,
 				      DRM_KERNEL_CONTEXT);
 		}
 	}
 
-	if (drm_core_check_feature(dev, DRIVER_HAVE_DMA)
-	    && !dev->driver->release) {
+	if (drm_core_check_feature(dev, DRIVER_HAVE_DMA) &&
+	    !dev->driver->reclaim_buffers_locked) {
 		dev->driver->reclaim_buffers(dev, filp);
 	}
 
@@ -292,8 +289,8 @@ int drm_release(struct inode *inode, struct file *filp)
 	}
 	up(&dev->struct_sem);
 
-	if (dev->driver->free_filp_priv)
-		dev->driver->free_filp_priv(dev, priv);
+	if (dev->driver->postclose)
+		dev->driver->postclose(dev, priv);
 
 	drm_free(priv, sizeof(*priv), DRM_MEM_FILES);
 
@@ -313,7 +310,7 @@ int drm_release(struct inode *inode, struct file *filp)
 		}
 		spin_unlock(&dev->count_lock);
 		unlock_kernel();
-		return drm_takedown(dev);
+		return drm_lastclose(dev);
 	}
 	spin_unlock(&dev->count_lock);
 
@@ -363,8 +360,8 @@ static int drm_open_helper(struct inode *inode, struct file *filp,
 	priv->authenticated = capable(CAP_SYS_ADMIN);
 	priv->lock_count = 0;
 
-	if (dev->driver->open_helper) {
-		ret = dev->driver->open_helper(dev, priv);
+	if (dev->driver->open) {
+		ret = dev->driver->open(dev, priv);
 		if (ret < 0)
 			goto out_free;
 	}