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| author | Eric Biggers <ebiggers@google.com> | 2020-07-10 10:20:08 +0300 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2020-07-25 05:09:54 +0300 |
| commit | 0f206514749be9988a083ca364b889a7fcff7f78 (patch) | |
| tree | bf9f7ba1962a8642ac8bca5c9dbab7acee77cfeb /drivers/firmware/qcom_scm.h | |
| parent | 3eef38a14370c673134600130094472e2c3f4041 (diff) | |
| download | linux-0f206514749be9988a083ca364b889a7fcff7f78.tar.xz | |
scsi: firmware: qcom_scm: Add support for programming inline crypto keys
Add support for the Inline Crypto Engine (ICE) key programming interface
that's needed for the ufs-qcom driver to use inline encryption on
Snapdragon SoCs. This interface consists of two SCM calls: one to program
a key into a keyslot, and one to invalidate a keyslot.
Although the UFS specification defines a standard way to do this, on these
SoCs the Linux kernel isn't permitted to access the needed crypto
configuration registers directly; these SCM calls must be used instead.
Link: https://lore.kernel.org/r/20200710072013.177481-2-ebiggers@kernel.org
Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/firmware/qcom_scm.h')
| -rw-r--r-- | drivers/firmware/qcom_scm.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/firmware/qcom_scm.h b/drivers/firmware/qcom_scm.h index d9ed670da222..38ea614d29fe 100644 --- a/drivers/firmware/qcom_scm.h +++ b/drivers/firmware/qcom_scm.h @@ -103,6 +103,10 @@ extern int scm_legacy_call(struct device *dev, const struct qcom_scm_desc *desc, #define QCOM_SCM_OCMEM_LOCK_CMD 0x01 #define QCOM_SCM_OCMEM_UNLOCK_CMD 0x02 +#define QCOM_SCM_SVC_ES 0x10 /* Enterprise Security */ +#define QCOM_SCM_ES_INVALIDATE_ICE_KEY 0x03 +#define QCOM_SCM_ES_CONFIG_SET_ICE_KEY 0x04 + #define QCOM_SCM_SVC_HDCP 0x11 #define QCOM_SCM_HDCP_INVOKE 0x01 |