From 8aa1e3a6f0ffbcfdf3bd7d87feb9090f96c54bc4 Mon Sep 17 00:00:00 2001 From: Amirreza Zarrabi Date: Thu, 11 Sep 2025 21:07:40 -0700 Subject: 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 Tested-by: Harshal Dev Reviewed-by: Kuldeep Singh Signed-off-by: Amirreza Zarrabi 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 --- include/linux/firmware/qcom/qcom_tzmem.h | 15 +++++++++++++++ 1 file changed, 15 insertions(+) (limited to 'include/linux') 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 */ -- cgit v1.2.3 From 4b700098c0fc4a76c5c1e54465c8f35e13755294 Mon Sep 17 00:00:00 2001 From: Amirreza Zarrabi Date: Thu, 11 Sep 2025 21:07:41 -0700 Subject: firmware: qcom: scm: add support for object invocation Qualcomm TEE (QTEE) hosts Trusted Applications (TAs) and services in the secure world, accessed via objects. A QTEE client can invoke these objects to request services. Similarly, QTEE can request services from the nonsecure world using objects exported to the secure world. Add low-level primitives to facilitate the invocation of objects hosted in QTEE, as well as those hosted in the nonsecure world. If support for object invocation is available, the qcom_scm allocates a dedicated child platform device. The driver for this device communicates with QTEE using low-level primitives. Tested-by: Neil Armstrong Tested-by: Harshal Dev Signed-off-by: Amirreza Zarrabi Link: https://lore.kernel.org/r/20250911-qcom-tee-using-tee-ss-without-mem-obj-v12-2-17f07a942b8d@oss.qualcomm.com Signed-off-by: Bjorn Andersson --- include/linux/firmware/qcom/qcom_scm.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'include/linux') diff --git a/include/linux/firmware/qcom/qcom_scm.h b/include/linux/firmware/qcom/qcom_scm.h index 0f667bf1d4d9..a55ca771286b 100644 --- a/include/linux/firmware/qcom/qcom_scm.h +++ b/include/linux/firmware/qcom/qcom_scm.h @@ -175,4 +175,10 @@ static inline int qcom_scm_qseecom_app_send(u32 app_id, #endif /* CONFIG_QCOM_QSEECOM */ +int qcom_scm_qtee_invoke_smc(phys_addr_t inbuf, size_t inbuf_size, + phys_addr_t outbuf, size_t outbuf_size, + u64 *result, u64 *response_type); +int qcom_scm_qtee_callback_response(phys_addr_t buf, size_t buf_size, + u64 *result, u64 *response_type); + #endif -- cgit v1.2.3 From d4bf06592ad68ac4353a81c73e8e662cf88aa2cc Mon Sep 17 00:00:00 2001 From: Viken Dadhaniya Date: Thu, 11 Sep 2025 10:02:53 +0530 Subject: soc: qcom: geni-se: Add support to load QUP SE Firmware via Linux subsystem In Qualcomm SoCs, firmware loading for Serial Engines (SE) within the QUP hardware has traditionally been managed by TrustZone (TZ). This restriction poses a significant challenge for developers, as it limits their ability to enable various protocols on any of the SEs from the Linux side, reducing flexibility. Load the firmware to QUP SE based on the 'firmware-name' property specified in devicetree at bootup time. Co-developed-by: Mukesh Kumar Savaliya Signed-off-by: Mukesh Kumar Savaliya Signed-off-by: Viken Dadhaniya Link: https://lore.kernel.org/r/20250911043256.3523057-4-viken.dadhaniya@oss.qualcomm.com Signed-off-by: Bjorn Andersson --- include/linux/soc/qcom/geni-se.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include/linux') diff --git a/include/linux/soc/qcom/geni-se.h b/include/linux/soc/qcom/geni-se.h index 2996a3c28ef3..0a984e2579fe 100644 --- a/include/linux/soc/qcom/geni-se.h +++ b/include/linux/soc/qcom/geni-se.h @@ -1,6 +1,7 @@ /* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright (c) 2017-2018, The Linux Foundation. All rights reserved. + * Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries. */ #ifndef _LINUX_QCOM_GENI_SE @@ -36,6 +37,7 @@ enum geni_se_protocol_type { GENI_SE_I2C, GENI_SE_I3C, GENI_SE_SPI_SLAVE, + GENI_SE_INVALID_PROTO = 255, }; struct geni_wrapper; @@ -531,5 +533,7 @@ void geni_icc_set_tag(struct geni_se *se, u32 tag); int geni_icc_enable(struct geni_se *se); int geni_icc_disable(struct geni_se *se); + +int geni_load_se_firmware(struct geni_se *se, enum geni_se_protocol_type protocol); #endif #endif -- cgit v1.2.3