The HW supports only storing 15 keys at a time. This limits the number
of tfms that can work without failutes. Reserve keyslots to solve this
and use the reserved ones during the encryption/decryption operation.
This allow users to have the capability of hardware protected keys
and faster operations if there are limited number of tfms while not
halting the operation if there are more tfms.
Bug 4883011
Change-Id: I220f1e8205dde1f078be6ed4cb09b699b6d5dfa2
Signed-off-by: Akhil R <akhilrajeev@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3263283
GVS: buildbot_gerritrpt <buildbot_gerritrpt@nvidia.com>
Reviewed-by: Brad Griffis <bgriffis@nvidia.com>
Add the updated Tegra SE driver with the below improvements.
- Remove dependency with nvhost apis and use upstream Host1x APIs.
- Implement software fallbacks for keys/plaintexts unsupported by
hardware.
- Support only T234 and later. Prior chips will use tegra-se-nvhost
driver.
Bug 4221414
Bug 3579794
Signed-off-by: Akhil R <akhilrajeev@nvidia.com>
Change-Id: I398a5b7cc3f752b44d01d6d1c81f813f862e4cd9
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/2977810
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
