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Diffstat (limited to 'drivers/firmware/qcom_scm-64.c')
-rw-r--r--drivers/firmware/qcom_scm-64.c42
1 files changed, 42 insertions, 0 deletions
diff --git a/drivers/firmware/qcom_scm-64.c b/drivers/firmware/qcom_scm-64.c
index 550e3a34e260..6e6d561708e2 100644
--- a/drivers/firmware/qcom_scm-64.c
+++ b/drivers/firmware/qcom_scm-64.c
@@ -397,3 +397,45 @@ int __qcom_scm_restore_sec_cfg(struct device *dev, u32 device_id, u32 spare)
return ret ? : res.a1;
}
+
+int __qcom_scm_iommu_secure_ptbl_size(struct device *dev, u32 spare,
+ size_t *size)
+{
+ struct qcom_scm_desc desc = {0};
+ struct arm_smccc_res res;
+ int ret;
+
+ desc.args[0] = spare;
+ desc.arginfo = QCOM_SCM_ARGS(1);
+
+ ret = qcom_scm_call(dev, QCOM_SCM_SVC_MP,
+ QCOM_SCM_IOMMU_SECURE_PTBL_SIZE, &desc, &res);
+
+ if (size)
+ *size = res.a1;
+
+ return ret ? : res.a2;
+}
+
+int __qcom_scm_iommu_secure_ptbl_init(struct device *dev, u64 addr, u32 size,
+ u32 spare)
+{
+ struct qcom_scm_desc desc = {0};
+ struct arm_smccc_res res;
+ int ret;
+
+ desc.args[0] = addr;
+ desc.args[1] = size;
+ desc.args[2] = spare;
+ desc.arginfo = QCOM_SCM_ARGS(3, QCOM_SCM_RW, QCOM_SCM_VAL,
+ QCOM_SCM_VAL);
+
+ ret = qcom_scm_call(dev, QCOM_SCM_SVC_MP,
+ QCOM_SCM_IOMMU_SECURE_PTBL_INIT, &desc, &res);
+
+ /* the pg table has been initialized already, ignore the error */
+ if (ret == -EPERM)
+ ret = 0;
+
+ return ret;
+}