diff options
| -rw-r--r-- | drivers/firmware/qcom/qcom_scm.c | 26 | ||||
| -rw-r--r-- | drivers/firmware/qcom/qcom_scm.h | 1 | ||||
| -rw-r--r-- | include/linux/firmware/qcom/qcom_scm.h | 2 |
3 files changed, 29 insertions, 0 deletions
diff --git a/drivers/firmware/qcom/qcom_scm.c b/drivers/firmware/qcom/qcom_scm.c index bdb42eb2e1e8..596a8acf0899 100644 --- a/drivers/firmware/qcom/qcom_scm.c +++ b/drivers/firmware/qcom/qcom_scm.c @@ -903,6 +903,32 @@ 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 = { diff --git a/drivers/firmware/qcom/qcom_scm.h b/drivers/firmware/qcom/qcom_scm.h index 685b8f59e7a6..e36b2f67607f 100644 --- a/drivers/firmware/qcom/qcom_scm.h +++ b/drivers/firmware/qcom/qcom_scm.h @@ -116,6 +116,7 @@ struct qcom_tzmem_pool *qcom_scm_get_tzmem_pool(void); #define QCOM_SCM_MP_IOMMU_SET_CP_POOL_SIZE 0x05 #define QCOM_SCM_MP_VIDEO_VAR 0x08 #define QCOM_SCM_MP_ASSIGN 0x16 +#define QCOM_SCM_MP_CP_SMMU_APERTURE_ID 0x1b #define QCOM_SCM_MP_SHM_BRIDGE_ENABLE 0x1c #define QCOM_SCM_MP_SHM_BRIDGE_DELETE 0x1d #define QCOM_SCM_MP_SHM_BRIDGE_CREATE 0x1e diff --git a/include/linux/firmware/qcom/qcom_scm.h b/include/linux/firmware/qcom/qcom_scm.h index 9f14976399ab..4621aec0328c 100644 --- a/include/linux/firmware/qcom/qcom_scm.h +++ b/include/linux/firmware/qcom/qcom_scm.h @@ -85,6 +85,8 @@ int qcom_scm_io_writel(phys_addr_t addr, unsigned int val); bool qcom_scm_restore_sec_cfg_available(void); int qcom_scm_restore_sec_cfg(u32 device_id, u32 spare); +int qcom_scm_set_gpu_smmu_aperture(unsigned int context_bank); +bool qcom_scm_set_gpu_smmu_aperture_is_available(void); int qcom_scm_iommu_secure_ptbl_size(u32 spare, size_t *size); int qcom_scm_iommu_secure_ptbl_init(u64 addr, u32 size, u32 spare); int qcom_scm_iommu_set_cp_pool_size(u32 spare, u32 size); |