diff options
| author | Alexandre Courbot <acourbot@nvidia.com> | 2015-05-21 15:08:28 +0900 |
|---|---|---|
| committer | Martin Peres <martin.peres@free.fr> | 2015-05-21 21:20:29 +0300 |
| commit | a1acffd4e0968ffa65b673163574188a00c9ab7e (patch) | |
| tree | ee10448a81d0dd01de719367eeff9559e7474040 /include | |
| parent | e9ea1f42d14e10852f292f3470aee260c7349978 (diff) | |
nouveau: add coherent BO attribute
Add a flag allowing Nouveau to specify that an object should be coherent
at allocation time. This is required for some class of objects like
fences which are randomly-accessed by both the CPU and GPU. This flag
instructs the kernel driver to make sure the object remains coherent
even on architectures for which coherency is not guaranteed by the bus.
Reviewed-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/drm/nouveau_drm.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/drm/nouveau_drm.h b/include/drm/nouveau_drm.h index b18cad02..87aefc5e 100644 --- a/include/drm/nouveau_drm.h +++ b/include/drm/nouveau_drm.h @@ -96,6 +96,7 @@ struct drm_nouveau_setparam { #define NOUVEAU_GEM_DOMAIN_VRAM (1 << 1) #define NOUVEAU_GEM_DOMAIN_GART (1 << 2) #define NOUVEAU_GEM_DOMAIN_MAPPABLE (1 << 3) +#define NOUVEAU_GEM_DOMAIN_COHERENT (1 << 4) #define NOUVEAU_GEM_TILE_LAYOUT_MASK 0x0000ff00 #define NOUVEAU_GEM_TILE_16BPP 0x00000001 |