iommu/arm-smmu: support static context banks

Consider any pre-initialized stream match register table entries,
which are of type translation, as static stream ID to context bank
mappings.

When an attach occurs for a stream ID which has a static context bank
mapping ensure that the pre-initialized stream match register table
entry is used for that stream ID.

Contract for using static context banks:
1) Before doing the attach hardware translations must be stopped and
hardware translations are only re-enabled once the required mappings
have been added.
2) Before the attach the static CB must be in stage 1 context bank
bypass (CBn_SCTLR.M == 0).

CRs-Fixed: 1050659
Change-Id: I4037d7861657384eb5b4f67c52b2dbf4ad6e1c2c
Signed-off-by: Liam Mark <lmark@codeaurora.org>

0 files changed, 0 insertions, 0 deletions