From 0f206514749be9988a083ca364b889a7fcff7f78 Mon Sep 17 00:00:00 2001 From: Eric Biggers Date: Fri, 10 Jul 2020 00:20:08 -0700 Subject: 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 Signed-off-by: Eric Biggers Signed-off-by: Martin K. Petersen --- drivers/firmware/qcom_scm.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers/firmware/qcom_scm.h') 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 -- cgit v1.2.3