diff options
| author | Gerd Hoffmann <kraxel@redhat.com> | 2020-02-26 16:47:50 +0100 |
|---|---|---|
| committer | Gerd Hoffmann <kraxel@redhat.com> | 2020-02-27 13:54:38 +0100 |
| commit | 1cad629257e76025bcbf490c58de550fb67d4d0e (patch) | |
| tree | ad269344138ee6a0d8b11fb925a8e6dbab3921ff /include/drm/drm_gem_shmem_helper.h | |
| parent | d1f37226431f5d9657aa144a40f2383adbcf27e1 (diff) | |
| download | lwn-1cad629257e76025bcbf490c58de550fb67d4d0e.tar.gz lwn-1cad629257e76025bcbf490c58de550fb67d4d0e.zip | |
drm/shmem: add support for per object caching flags.
Add map_cached bool to drm_gem_shmem_object, to request cached mappings
on a per-object base. Check the flag before adding writecombine to
pgprot bits.
Cc: stable@vger.kernel.org
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Gurchetan Singh <gurchetansingh@chromium.org>
Tested-by: Guillaume Gardet <Guillaume.Gardet@arm.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20200226154752.24328-2-kraxel@redhat.com
Diffstat (limited to 'include/drm/drm_gem_shmem_helper.h')
| -rw-r--r-- | include/drm/drm_gem_shmem_helper.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/drm/drm_gem_shmem_helper.h b/include/drm/drm_gem_shmem_helper.h index e34a7b7f848a..294b2931c4cc 100644 --- a/include/drm/drm_gem_shmem_helper.h +++ b/include/drm/drm_gem_shmem_helper.h @@ -96,6 +96,11 @@ struct drm_gem_shmem_object { * The address are un-mapped when the count reaches zero. */ unsigned int vmap_use_count; + + /** + * @map_cached: map object cached (instead of using writecombine). + */ + bool map_cached; }; #define to_drm_gem_shmem_obj(obj) \ |