diff options
Diffstat (limited to 'drivers/mfd/glamo/glamo-drm-private.h')
| -rw-r--r-- | drivers/mfd/glamo/glamo-drm-private.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/mfd/glamo/glamo-drm-private.h b/drivers/mfd/glamo/glamo-drm-private.h index 59fbc2488c5..9442532dafe 100644 --- a/drivers/mfd/glamo/glamo-drm-private.h +++ b/drivers/mfd/glamo/glamo-drm-private.h @@ -29,6 +29,8 @@ #include <linux/module.h> #include <linux/platform_device.h> +#include <linux/spinlock.h> +#include <linux/semaphore.h> #include "glamo-core.h" @@ -56,6 +58,12 @@ struct glamodrm_handle { /* Memory management */ struct drm_mm *mmgr; + + /* semaphore against concurrent ioctl */ + struct semaphore add_to_ring; + + spinlock_t new_ring_write_lock; + size_t new_ring_write; }; /* Private data. This is where we keep our memory management bits */ |