diff options
Diffstat (limited to 'linux/mga_drv.h')
| -rw-r--r-- | linux/mga_drv.h | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/linux/mga_drv.h b/linux/mga_drv.h index f56186e1..bd33d9d1 100644 --- a/linux/mga_drv.h +++ b/linux/mga_drv.h @@ -36,7 +36,6 @@ typedef struct drm_mga_primary_buffer { u8 *end; int size; - volatile u32 *head; u32 tail; int space; @@ -246,6 +245,13 @@ do { \ #define FLUSH_DMA() \ do { \ + if ( 0 ) { \ + DRM_INFO( __FUNCTION__ ":\n" ); \ + DRM_INFO( " tail=0x%06x head=0x%06lx\n", \ + dev_priv->prim.tail, \ + MGA_READ( MGA_PRIMADDRESS ) - \ + dev_priv->primary->offset ); \ + } \ if ( dev_priv->prim.space < dev_priv->prim.high_mark ) { \ mga_do_dma_wrap_start( dev_priv ); \ } else { \ @@ -278,7 +284,7 @@ do { \ } while (0) -/* Buffer ageing via primary DMA stream head pointer. +/* Buffer aging via primary DMA stream head pointer. */ #define SET_AGE( age, h, w ) \ |