diff options
| author | Amirreza Zarrabi <amirreza.zarrabi@oss.qualcomm.com> | 2025-09-12 07:07:40 +0300 |
|---|---|---|
| committer | Bjorn Andersson <andersson@kernel.org> | 2025-09-15 16:42:53 +0300 |
| commit | 8aa1e3a6f0ffbcfdf3bd7d87feb9090f96c54bc4 (patch) | |
| tree | 3039e883e4b316e168786f98db854a951a0cc455 /include/linux/firmware | |
| parent | 8f5ae30d69d7543eee0d70083daf4de8fe15d585 (diff) | |
| download | linux-8aa1e3a6f0ffbcfdf3bd7d87feb9090f96c54bc4.tar.xz | |
firmware: qcom: tzmem: export shm_bridge create/delete
Anyone with access to contiguous physical memory should be able to
share memory with QTEE using shm_bridge.
Tested-by: Neil Armstrong <neil.armstrong@linaro.org>
Tested-by: Harshal Dev <quic_hdev@quicinc.com>
Reviewed-by: Kuldeep Singh <quic_kuldsing@quicinc.com>
Signed-off-by: Amirreza Zarrabi <amirreza.zarrabi@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250911-qcom-tee-using-tee-ss-without-mem-obj-v12-1-17f07a942b8d@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Diffstat (limited to 'include/linux/firmware')
| -rw-r--r-- | include/linux/firmware/qcom/qcom_tzmem.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/include/linux/firmware/qcom/qcom_tzmem.h b/include/linux/firmware/qcom/qcom_tzmem.h index b83b63a0c049..48ac0e5454c7 100644 --- a/include/linux/firmware/qcom/qcom_tzmem.h +++ b/include/linux/firmware/qcom/qcom_tzmem.h @@ -53,4 +53,19 @@ DEFINE_FREE(qcom_tzmem, void *, if (_T) qcom_tzmem_free(_T)) phys_addr_t qcom_tzmem_to_phys(void *ptr); +#if IS_ENABLED(CONFIG_QCOM_TZMEM_MODE_SHMBRIDGE) +int qcom_tzmem_shm_bridge_create(phys_addr_t paddr, size_t size, u64 *handle); +void qcom_tzmem_shm_bridge_delete(u64 handle); +#else +static inline int qcom_tzmem_shm_bridge_create(phys_addr_t paddr, + size_t size, u64 *handle) +{ + return 0; +} + +static inline void qcom_tzmem_shm_bridge_delete(u64 handle) +{ +} +#endif + #endif /* __QCOM_TZMEM */ |