diff options
Diffstat (limited to 'linux-core/drmP.h')
| -rw-r--r-- | linux-core/drmP.h | 21 |
1 files changed, 16 insertions, 5 deletions
diff --git a/linux-core/drmP.h b/linux-core/drmP.h index 5c1474df..a6b32285 100644 --- a/linux-core/drmP.h +++ b/linux-core/drmP.h @@ -276,6 +276,17 @@ do { \ (_map) = (_dev)->context_sareas[_ctx]; \ } while(0) +#define LOCK_TEST_WITH_RETURN( dev, filp ) \ +do { \ + if ( !_DRM_LOCK_IS_HELD( dev->lock.hw_lock->lock ) || \ + dev->lock.filp != filp ) { \ + DRM_ERROR( "%s called without lock held\n", \ + __FUNCTION__ ); \ + return -EINVAL; \ + } \ +} while (0) + + typedef int drm_ioctl_t( struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg ); @@ -324,7 +335,7 @@ typedef struct drm_buf { __volatile__ int waiting; /* On kernel DMA queue */ __volatile__ int pending; /* On hardware DMA queue */ wait_queue_head_t dma_wait; /* Processes waiting */ - pid_t pid; /* PID of holding process */ + struct file *filp; /* Pointer to holding file descr */ int context; /* Kernel queue for this buffer */ int while_locked;/* Dispatch this buffer while locked */ enum { @@ -442,7 +453,7 @@ typedef struct drm_queue { typedef struct drm_lock_data { drm_hw_lock_t *hw_lock; /* Hardware lock */ - pid_t pid; /* PID of lock holder (0=kernel) */ + struct file *filp; /* File descr of lock holder (0=kernel) */ wait_queue_head_t lock_queue; /* Queue of blocked processes */ unsigned long lock_time; /* Time of last lock in jiffies */ } drm_lock_data_t; @@ -818,15 +829,15 @@ extern int DRM(mapbufs)( struct inode *inode, struct file *filp, extern int DRM(dma_setup)(drm_device_t *dev); extern void DRM(dma_takedown)(drm_device_t *dev); extern void DRM(free_buffer)(drm_device_t *dev, drm_buf_t *buf); -extern void DRM(reclaim_buffers)(drm_device_t *dev, pid_t pid); +extern void DRM(reclaim_buffers)( struct file *filp ); #if __HAVE_OLD_DMA /* GH: This is a dirty hack for now... */ extern void DRM(clear_next_buffer)(drm_device_t *dev); extern int DRM(select_queue)(drm_device_t *dev, void (*wrapper)(unsigned long)); -extern int DRM(dma_enqueue)(drm_device_t *dev, drm_dma_t *dma); -extern int DRM(dma_get_buffers)(drm_device_t *dev, drm_dma_t *dma); +extern int DRM(dma_enqueue)(struct file *filp, drm_dma_t *dma); +extern int DRM(dma_get_buffers)(struct file *filp, drm_dma_t *dma); #endif #if __HAVE_DMA_IRQ extern int DRM(control)( struct inode *inode, struct file *filp, |