diff options
| author | Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> | 2018-07-09 11:53:31 +0900 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2018-07-20 14:03:56 +0200 |
| commit | 2ae86955703e9e6a119af4bbe27f6b6dd7a43131 (patch) | |
| tree | 7465628332bbc2757b1c7db7d54e12a5074bab32 /drivers/bus | |
| parent | bc24f62bf8763660110f915cead86dd13840ed26 (diff) | |
iommu/ipmmu-vmsa: IMUCTRn.TTSEL needs a special usage on R-Car Gen3
The TTSEL bit of IMUCTRn register of R-Car Gen3 needs to be set
unused MMU context number even if uTLBs are disabled
(The MMUEN bit of IMUCTRn register = 0).
Since initial values of IMUCTRn.TTSEL on all IPMMU-domains are 0,
this patch adds a new feature "reserved_context" to reserve IPMMU
context number 0 as the unused MMU context.
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/bus')
0 files changed, 0 insertions, 0 deletions