drivers/misc/mediatek/trusted_mem/Kconfig

# SPDX-License-Identifier: GPL-2.0
#
# Copyright (C) 2018 MediaTek Inc.
#

config MTK_PROT_MEM_SUPPORT
	bool "MTK Protect Memory Support"
	default y
	depends on MTK_GZ_KREE
	help
	  Enable the support of MediaTek protect memory driver.
	  This driver is in charge of protect memory region require/release
	  from SSMR and also the memory allocation/free requests from ION.
	  It is a proxy of MediaTek proprietary EL2 hypervisor for protect
	  memory management.
	  Say Y if you would like to enable this feature.
	  If unsure, say N.

config MTK_SECURE_MEM_SUPPORT
	bool "MTK SVP SECURE Memory Support"
	default y
	depends on TRUSTONIC_TEE_SUPPORT || MTK_TEE_GP_SUPPORT || MTK_GZ_KREE
	help
	  Enable the support of MediaTek SVP secure memory driver.
	  This driver is in charge of SVP secure memory region require/release
	  from SSMR and also the memory allocation/free requests from ION.
	  It is a proxy of TEE secure memory driver for SVP secure memory
	  management.
	  Say Y if you would like to enable this feature.
	  If unsure, say N.

config MTK_WFD_SMEM_SUPPORT
	bool "MTK WFD SECURE Memory Support"
	default y
	depends on MTK_SECURE_MEM_SUPPORT
	help
	  Enable the support of MediaTek WFD secure memory driver.
	  This driver is in charge of WFD secure memory region require/release
	  from SSMR and also the memory allocation/free requests from ION.
	  It is a proxy of TEE secure memory driver for WFD secure memory
	  management.
	  Say Y if you would like to enable this feature.
	  If unsure, say N.

config MTK_HAPP_MEM_SUPPORT
	bool "MTK MTEE Hypervisor App Memory Support"
	depends on MTK_GZ_KREE
	help
	  Enable the support of MediaTek MTEE EL2 app memory driver.
	  This driver is in charge of EL2 app memory region require/release
	  from SSMR and also the memory allocation/free requests from ION.
	  It is a proxy of MediaTek proprietary EL2 hypervisor for isolated
	  memory management.
	  Say Y if you would like to enable this feature.
	  If unsure, say N.

config MTK_SDSP_MEM_SUPPORT
	bool "MTK MTEE SDSP Firmware Memory Support"
	depends on MTK_GZ_KREE
	help
	  Enable the support of MediaTek MTEE SDSP firmware memory driver.
	  This driver is in charge of SDSP image memory region require/release
	  from SSMR and also the memory allocation/free requests from ION.
	  It is a proxy of MediaTek proprietary EL2 hypervisor for isolated
	  memory management.
	  Say Y if you would like to enable this feature.
	  If unsure, say N.

config MTK_SDSP_SHARED_MEM_SUPPORT
	bool "MTK SDSP Shared Memory Support"
	depends on MTK_GZ_KREE
	help
	  Enable the support of MediaTek SDSP shared memory driver.
	  This driver is in charge of SDSP shared memory region require/release
	  from SSMR and also the memory allocation/free requests from ION.
	  It is a proxy of MediaTek proprietary EL2 hypervisor or TEE secure
	  memory driver for isolated memory management.
	  Say Y if you would like to enable this feature.
	  If unsure, say N.

choice
	prompt "MTK VPU/MTEE/MTEE Shared Memory Support"
	depends on MTK_SDSP_SHARED_MEM_SUPPORT
	default MTK_SDSP_SHARED_PERM_VPU_MTEE_TEE

config MTK_SDSP_SHARED_PERM_VPU_TEE
	bool "MTK SDSP Shared Memory Permssions for VPU/TEE"
	help
	  Enable the support of SDSP shared memory buffer to be shared
	  between VPU hardware and TEE.
	  Select if you would like to enable this feature.
	  If unsure, say N.

config MTK_SDSP_SHARED_PERM_MTEE_TEE
	bool "MTK SDSP Shared Memory Permssions for MTEE/TEE"
	help
	  Enable the support of SDSP shared memory buffer to be shared
	  between MTEE and TEE.
	  Select if you would like to enable this feature.
	  If unsure, say N.

config MTK_SDSP_SHARED_PERM_VPU_MTEE_TEE
	bool "MTK SDSP Shared Memory Permssions for VPU/MTEE/TEE"
	help
	  Enable the support of SDSP shared memory buffer to be shared
	  between VPU hardware, MTEE and TEE.
	  Select if you would like to enable this feature.
	  If unsure, say N.
endchoice

config MTK_MTEE_MULTI_CHUNK_SUPPORT
	bool "MTK MTEE Multiple Chunk Memory Support"
	depends on MTK_HAPP_MEM_SUPPORT || MTK_SDSP_MEM_SUPPORT || \
		   MTK_SDSP_SHARED_PERM_MTEE_TEE || \
		   MTK_SDSP_SHARED_PERM_VPU_MTEE_TEE
	help
	  Enable the support of MediaTek MTEE multiple chunks memory driver.
	  This driver is in charge of multi-chunk memory region require/release
	  from SSMR and also the memory allocation/free requests from ION.
	  It is a proxy of MTEE multi-chunk memory driver for isolated memory
	  management.
	  Say Y if you would like to enable this feature.
	  If unsure, say N.

config MTK_TRUSTED_MEMORY_SUBSYSTEM
	tristate "MTK Trusted Memory Subsystem Support"
	default m
	depends on MTK_PROT_MEM_SUPPORT || MTK_SECURE_MEM_SUPPORT || \
			   MTK_MTEE_MULTI_CHUNK_SUPPORT || MTK_GZ_KREE
	select CMA
	select DMA_CMA
	help
	  Enable the support of MediaTek trusted memory subsystem driver.
	  This driver provide a general subsystem layer for trusted peer memory
	  manager such as EL2 hypervisor or TEE. New type of trusted memory can
	  be registered to this subsystem easily.
	  Say Y if you would like to build it in kernel image.
	  Say M if you would like to build it as a kernel module.
	  If unsure, say N.

config TEST_MTK_TRUSTED_MEMORY
	tristate "MTK Trusted Memory UT SUITE"
	default y
	depends on MTK_TRUSTED_MEMORY_SUBSYSTEM
	help
	  This is a test module doing various nasty things like
	  open/close/alloc/free operation, It is useful for testing
	  trusted memory features.

config TMEM_MEMORY_POOL_ALLOCATOR
	tristate "TMEM General Memory Pool Allocator"
	depends on MTK_TRUSTED_MEMORY_SUBSYSTEM
	help
	  Enable the support of kernel memory pool allocator in order
	  to replace mtee allocator of Geniezone with kernel memory
	  pool allocator. The goal is to support secure memory and
	  ARM Firmware Framework.