xtensa: implement pgprot_noncached
The default pgprot_noncached doesn't do anything. This leads to issues
when drivers rely on it to disable caching in userspace mappings.
Implement pgprot_noncached properly so that caching of userspace mappings
could be controlled.
Signed-off-by: NMax Filippov <jcmvbkbc@gmail.com>
Showing
想要评论请 注册 或 登录