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Diffstat (limited to 'linux-core/drmP.h')
-rw-r--r--linux-core/drmP.h21
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,