diff options
Diffstat (limited to 'linux/mga_dma.c')
| -rw-r--r-- | linux/mga_dma.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/linux/mga_dma.c b/linux/mga_dma.c index 0df0906e..9ca72296 100644 --- a/linux/mga_dma.c +++ b/linux/mga_dma.c @@ -82,6 +82,7 @@ static void mga_delay(void) return; } +#ifdef __i386__ void mga_flush_write_combine(void) { int xchangeDummy; @@ -92,6 +93,7 @@ void mga_flush_write_combine(void) " movl $0,%%eax ; cpuid ; pop %%edx ; pop %%ecx ; pop %%ebx ;" " pop %%eax" : /* no outputs */ : /* no inputs */ ); } +#endif /* These are two age tags that will never be sent to * the hardware */ @@ -427,7 +429,9 @@ void mga_fire_primary(drm_device_t *dev, drm_mga_prim_buf_t *prim) } } +#ifdef __i386__ mga_flush_write_combine(); +#endif atomic_inc(&dev_priv->pending_bufs); MGA_WRITE(MGAREG_PRIMADDRESS, phys_head | TT_GENERAL); MGA_WRITE(MGAREG_PRIMEND, (phys_head + num_dwords * 4) | use_agp); @@ -824,7 +828,9 @@ static int mga_dma_initialize(drm_device_t *dev, drm_mga_init_t *init) { * the status register will be correct */ +#ifdef __i386__ mga_flush_write_combine(); +#endif MGA_WRITE(MGAREG_PRIMADDRESS, phys_head | TT_GENERAL); MGA_WRITE(MGAREG_PRIMEND, ((phys_head + num_dwords * 4) | |