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author | Eric Biggers <ebiggers@google.com> | 2021-01-25 16:14:48 -0800 |
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committer | Ulf Hansson <ulf.hansson@linaro.org> | 2021-02-01 12:02:33 +0100 |
commit | 93f1c150cb0d043e1e8985db7824b4e2e1ac653f (patch) | |
tree | 5c999fb86e72da2a2a12b871c122588ff5907598 /drivers/mmc/core/host.c | |
parent | d76d9d7d1009968dd3a0fc30e5f5ee9fbffc1350 (diff) | |
download | linux-93f1c150cb0d043e1e8985db7824b4e2e1ac653f.tar.gz linux-93f1c150cb0d043e1e8985db7824b4e2e1ac653f.tar.bz2 linux-93f1c150cb0d043e1e8985db7824b4e2e1ac653f.zip |
mmc: core: Add basic support for inline encryption
In preparation for adding CQHCI crypto engine (inline encryption)
support, add the code required to make mmc_core and mmc_block aware of
inline encryption. Specifically:
- Add a capability flag MMC_CAP2_CRYPTO to struct mmc_host. Drivers
will set this if the host and driver support inline encryption.
- Embed a blk_keyslot_manager in struct mmc_host. Drivers will
initialize this (as a device-managed resource) if the host and driver
support inline encryption. mmc_block registers this keyslot manager
with the request_queue of any MMC card attached to the host.
- Make mmc_block copy the crypto keyslot and crypto data unit number
from struct request to struct mmc_request, so that drivers will have
access to them.
- If the MMC host is reset, reprogram all the keyslots to ensure that
the software state stays in sync with the hardware state.
Co-developed-by: Satya Tangirala <satyat@google.com>
Signed-off-by: Satya Tangirala <satyat@google.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Reviewed-by: Satya Tangirala <satyat@google.com>
Reviewed-and-tested-by: Peng Zhou <peng.zhou@mediatek.com>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Link: https://lore.kernel.org/r/20210126001456.382989-2-ebiggers@kernel.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc/core/host.c')
-rw-r--r-- | drivers/mmc/core/host.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/mmc/core/host.c b/drivers/mmc/core/host.c index 74e853bb6948..9b89a91b6b47 100644 --- a/drivers/mmc/core/host.c +++ b/drivers/mmc/core/host.c @@ -25,6 +25,7 @@ #include <linux/mmc/slot-gpio.h> #include "core.h" +#include "crypto.h" #include "host.h" #include "slot-gpio.h" #include "pwrseq.h" |