diff options
| author | Dave Airlie <airlied@redhat.com> | 2008-03-17 07:05:46 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2008-03-17 07:05:46 +1000 |
| commit | 1f96e9a98245b18c99cc6a7e66372a076b9abf6b (patch) | |
| tree | 2faf45565071d9d7904629eaeb063a1f159dbb97 /linux-core/drm_compat.h | |
| parent | 1a2d8c4bfa96dd176ec084811ad286f95968ee52 (diff) | |
drm/pcigart: fix the pci gart to use the drm_pci wrapper.
This is the correct fix for the RS690 and hopefully the dma coherent work.
For now we limit everybody to a 32-bit DMA mask but it is possible for
RS690 to use a 40-bit DMA mask for the GART table itself,
and the PCIE cards can use 40-bits for the table entries.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'linux-core/drm_compat.h')
| -rw-r--r-- | linux-core/drm_compat.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/linux-core/drm_compat.h b/linux-core/drm_compat.h index 0613b5d2..3b1287e1 100644 --- a/linux-core/drm_compat.h +++ b/linux-core/drm_compat.h @@ -339,4 +339,8 @@ extern void *kmap_atomic_prot_pfn(unsigned long pfn, enum km_type type, #define flush_agp_mappings() do {} while(0) #endif +#ifndef DMA_BIT_MASK +#define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : (1ULL<<(n)) - 1) +#endif + #endif |