diff options
| author | Nipun Gupta <[email protected]> | 2023-06-05 18:40:09 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <[email protected]> | 2023-06-15 13:42:16 +0200 |
| commit | b8c5ff76059ded3758de3db83e04189a072ac01f (patch) | |
| tree | efc56ff8f617ccd88c024133aa1f53c9f1d00ee5 /drivers/cdx/controller/mcdi.c | |
| parent | 9e66fb52449538406cea43e9f3889c391350e76e (diff) | |
cdx: fix driver managed dma support
The devices on cdx could be bound to drivers with the device
DMA managed by kernel drivers or user-space applications.
As multiple devices can be placed in the same IOMMU group, the
DMA on these devices must either be entirely under kernel control
or userspace control. Fix the CDX bus driver to acknowlege the
driver_managed_dma flag and call the appropriate iommu APIs.
Fixes: 2959ab247061 ("cdx: add the cdx bus driver")
Signed-off-by: Nipun Gupta <[email protected]>
Reported-by: Alex Williamson <[email protected]>
Closes: https://lore.kernel.org/lkml/[email protected]/
Reviewed-by: Nikhil Agarwal <[email protected]>
Message-ID: <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
Diffstat (limited to 'drivers/cdx/controller/mcdi.c')
0 files changed, 0 insertions, 0 deletions