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uio: introduce UIO_MEM_IOVA

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Introduce the concept of mapping physical memory locations that
are normal memory. The new type UIO_MEM_IOVA are similar to
existing UIO_MEM_PHYS but the backing memory is not marked as uncached.

Also, indent related switch to the currently used style.

Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Stephen Hemminger
2018-09-14 09:10:18 -07:00
committed by Greg Kroah-Hartman
parent ae6935ed7d
commit bfddabfa23
2 changed files with 14 additions and 11 deletions
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include/linux/uio_driver.h
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@@ -133,6 +133,7 @@ extern void uio_event_notify(struct uio_info *info);
#define UIO_MEM_PHYS 1
#define UIO_MEM_LOGICAL 2
#define UIO_MEM_VIRTUAL 3
#define UIO_MEM_IOVA 4
/* defines for uio_port->porttype */
#define UIO_PORT_NONE 0