diff options
Diffstat (limited to 'drivers/gpu/drm/drm_file.c')
| -rw-r--r-- | drivers/gpu/drm/drm_file.c | 40 |
1 files changed, 13 insertions, 27 deletions
diff --git a/drivers/gpu/drm/drm_file.c b/drivers/gpu/drm/drm_file.c index 638ffa4444f5..e8a841e70934 100644 --- a/drivers/gpu/drm/drm_file.c +++ b/drivers/gpu/drm/drm_file.c @@ -38,6 +38,7 @@ #include <linux/pci.h> #include <linux/poll.h> #include <linux/slab.h> +#include <linux/vga_switcheroo.h> #include <drm/drm_client.h> #include <drm/drm_drv.h> @@ -62,15 +63,6 @@ bool drm_dev_needs_global_mutex(struct drm_device *dev) if (dev->driver->load || dev->driver->unload) return true; - /* - * Drivers with the lastclose callback assume that it's synchronized - * against concurrent opens, which again needs the BKL. The proper fix - * is to use the drm_client infrastructure with proper locking for each - * client. - */ - if (dev->driver->lastclose) - return true; - return false; } @@ -395,15 +387,12 @@ err_undo: } EXPORT_SYMBOL(drm_open); -void drm_lastclose(struct drm_device * dev) +static void drm_lastclose(struct drm_device *dev) { - drm_dbg_core(dev, "\n"); - - if (dev->driver->lastclose) - dev->driver->lastclose(dev); - drm_dbg_core(dev, "driver lastclose completed\n"); - drm_client_dev_restore(dev); + + if (dev_is_pci(dev->dev)) + vga_switcheroo_process_delayed_switch(); } /** @@ -412,9 +401,9 @@ void drm_lastclose(struct drm_device * dev) * @filp: file pointer. * * This function must be used by drivers as their &file_operations.release - * method. It frees any resources associated with the open file, and calls the - * &drm_driver.postclose driver callback. If this is the last open file for the - * DRM device also proceeds to call the &drm_driver.lastclose driver callback. + * method. It frees any resources associated with the open file. If this + * is the last open file for the DRM device, it also restores the active + * in-kernel DRM client. * * RETURNS: * @@ -469,14 +458,12 @@ void drm_file_update_pid(struct drm_file *filp) dev = filp->minor->dev; mutex_lock(&dev->filelist_mutex); + get_pid(pid); old = rcu_replace_pointer(filp->pid, pid, 1); mutex_unlock(&dev->filelist_mutex); - if (pid != old) { - get_pid(pid); - synchronize_rcu(); - put_pid(old); - } + synchronize_rcu(); + put_pid(old); } /** @@ -486,9 +473,8 @@ void drm_file_update_pid(struct drm_file *filp) * * This function may be used by drivers as their &file_operations.release * method. It frees any resources associated with the open file prior to taking - * the drm_global_mutex, which then calls the &drm_driver.postclose driver - * callback. If this is the last open file for the DRM device also proceeds to - * call the &drm_driver.lastclose driver callback. + * the drm_global_mutex. If this is the last open file for the DRM device, it + * then restores the active in-kernel DRM client. * * RETURNS: * |