drm: kill kernel_context_switch callbacks

Not used by any in-kernel driver. So drop it.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>

2 files changed, 0 insertions, 21 deletions

diff --git a/drivers/gpu/drm/drm_lock.c b/drivers/gpu/drm/drm_lock.c
index 9bf93bc9a32c..609f2d504f72 100644
--- a/drivers/gpu/drm/drm_lock.c
+++ b/drivers/gpu/drm/drm_lock.c
@@ -136,12 +136,6 @@ int drm_lock(struct drm_device *dev, void *data, struct drm_file *file_priv)
                 }
         }
 
-        if (dev->driver->kernel_context_switch &&
-            dev->last_context != lock->context) {
-                dev->driver->kernel_context_switch(dev, dev->last_context,
-                                                   lock->context);
-        }
-
         return 0;
 }
 
@@ -159,7 +153,6 @@ int drm_lock(struct drm_device *dev, void *data, struct drm_file *file_priv)
 int drm_unlock(struct drm_device *dev, void *data, struct drm_file *file_priv)
 {
         struct drm_lock *lock = data;
-        struct drm_master *master = file_priv->master;
 
         if (lock->context == DRM_KERNEL_CONTEXT) {
                 DRM_ERROR("Process %d using kernel context %d\n",
@@ -169,17 +162,6 @@ int drm_unlock(struct drm_device *dev, void *data, struct drm_file *file_priv)
 
         atomic_inc(&dev->counts[_DRM_STAT_UNLOCKS]);
 
-        /* kernel_context_switch isn't used by any of the x86 drm
-         * modules but is required by the Sparc driver.
-         */
-        if (dev->driver->kernel_context_switch_unlock)
-                dev->driver->kernel_context_switch_unlock(dev);
-        else {
-                if (drm_lock_free(&master->lock, lock->context)) {
-                        /* FIXME: Should really bail out here. */
-                }
-        }
-
         unblock_all_signals();
         return 0;
 }
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 7809d230adee..15ea8c44f28d 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -703,9 +703,6 @@ struct drm_driver {
         int (*dma_quiescent) (struct drm_device *);
         int (*context_ctor) (struct drm_device *dev, int context);
         int (*context_dtor) (struct drm_device *dev, int context);
-        int (*kernel_context_switch) (struct drm_device *dev, int old,
-                                      int new);
-        void (*kernel_context_switch_unlock) (struct drm_device *dev);
 
         /**
          * get_vblank_counter - get raw hardware vblank counter