• Ohad Ben-Cohen's avatar
    ARM: 7130/1: dev_archdata: add private iommu extension · cfb470b3
    Ohad Ben-Cohen authored
    Add a private iommu pointer to the ARM-specific arch data in the
    device struct, which will be used to attach iommu-specific data
    to devices which require iommu support.
    
    Different iommu implementations (on different platforms) will attach
    different types of data to this pointer, so 'void *' is currently used
    (the downside is reduced typesafety).
    
    Note: ia64, x86 and sparc have this exact iommu extension as well, and
    if others are likely to adopt it too, we might want to consider
    adding this to the device struct itself directly.
    Signed-off-by: default avatarOhad Ben-Cohen <ohad@wizery.com>
    Cc: Arnd Bergmann <arnd@arndb.de>
    Cc: Grant Likely <grant.likely@secretlab.ca>
    Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
    cfb470b3
device.h 348 Bytes