diff options
Diffstat (limited to 'drivers/firmware/qcom/qcom_scm.c')
| -rw-r--r-- | drivers/firmware/qcom/qcom_scm.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/drivers/firmware/qcom/qcom_scm.c b/drivers/firmware/qcom/qcom_scm.c index 2e4260ba5f79..72bf87ddcd96 100644 --- a/drivers/firmware/qcom/qcom_scm.c +++ b/drivers/firmware/qcom/qcom_scm.c @@ -904,6 +904,32 @@ int qcom_scm_restore_sec_cfg(u32 device_id, u32 spare) } EXPORT_SYMBOL_GPL(qcom_scm_restore_sec_cfg); +#define QCOM_SCM_CP_APERTURE_CONTEXT_MASK GENMASK(7, 0) + +bool qcom_scm_set_gpu_smmu_aperture_is_available(void) +{ + return __qcom_scm_is_call_available(__scm->dev, QCOM_SCM_SVC_MP, + QCOM_SCM_MP_CP_SMMU_APERTURE_ID); +} +EXPORT_SYMBOL_GPL(qcom_scm_set_gpu_smmu_aperture_is_available); + +int qcom_scm_set_gpu_smmu_aperture(unsigned int context_bank) +{ + struct qcom_scm_desc desc = { + .svc = QCOM_SCM_SVC_MP, + .cmd = QCOM_SCM_MP_CP_SMMU_APERTURE_ID, + .arginfo = QCOM_SCM_ARGS(4), + .args[0] = 0xffff0000 | FIELD_PREP(QCOM_SCM_CP_APERTURE_CONTEXT_MASK, context_bank), + .args[1] = 0xffffffff, + .args[2] = 0xffffffff, + .args[3] = 0xffffffff, + .owner = ARM_SMCCC_OWNER_SIP + }; + + return qcom_scm_call(__scm->dev, &desc, NULL); +} +EXPORT_SYMBOL_GPL(qcom_scm_set_gpu_smmu_aperture); + int qcom_scm_iommu_secure_ptbl_size(u32 spare, size_t *size) { struct qcom_scm_desc desc = { @@ -1742,12 +1768,16 @@ EXPORT_SYMBOL_GPL(qcom_scm_qseecom_app_send); + any potential issues with this, only allow validated machines for now. */ static const struct of_device_id qcom_scm_qseecom_allowlist[] __maybe_unused = { + { .compatible = "dell,xps13-9345" }, { .compatible = "lenovo,flex-5g" }, { .compatible = "lenovo,thinkpad-t14s" }, { .compatible = "lenovo,thinkpad-x13s", }, + { .compatible = "lenovo,yoga-slim7x" }, + { .compatible = "microsoft,arcata", }, { .compatible = "microsoft,romulus13", }, { .compatible = "microsoft,romulus15", }, { .compatible = "qcom,sc8180x-primus" }, + { .compatible = "qcom,x1e001de-devkit" }, { .compatible = "qcom,x1e80100-crd" }, { .compatible = "qcom,x1e80100-qcp" }, { } |