diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/ioctl_wrappers.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/lib/ioctl_wrappers.c b/lib/ioctl_wrappers.c index f20786ac..dd48d0e6 100644 --- a/lib/ioctl_wrappers.c +++ b/lib/ioctl_wrappers.c @@ -523,7 +523,9 @@ bool gem_mmap__has_wc(int fd) * @prot: memory protection bits as used by mmap() * * This functions wraps up procedure to establish a memory mapping through - * direct cpu access, bypassing the gpu and cpu caches completely. + * direct cpu access, bypassing the gpu and cpu caches completely and also + * bypassing the GTT system agent (i.e. there is no automatic tiling of + * the mmapping through the fence registers). * * Returns: A pointer to the created memory mapping. */ |