| # ARM Generic Interrupt Controller (GIC) configuration |
| |
| # Copyright (c) 2019 Stephanos Ioannidis <root@stephanos.io> |
| # SPDX-License-Identifier: Apache-2.0 |
| |
| if CPU_CORTEX |
| |
| config GIC |
| bool |
| |
| config GIC_V1 |
| def_bool DT_HAS_ARM_GIC_V1_ENABLED |
| select GIC |
| help |
| The ARM Generic Interrupt Controller v1 (e.g. PL390) works with the |
| ARM Cortex-family processors. |
| |
| config GIC_V2 |
| def_bool DT_HAS_ARM_GIC_V2_ENABLED |
| select GIC |
| help |
| The ARM Generic Interrupt Controller v2 (e.g. GIC-400) works with the |
| ARM Cortex-family processors. |
| |
| config GIC_V3 |
| def_bool DT_HAS_ARM_GIC_V3_ENABLED |
| select GIC |
| help |
| The ARM Generic Interrupt Controller v3 (e.g. GIC-500 and GIC-600) |
| works with the ARM Cortex-family processors. |
| |
| config GIC_VER |
| int |
| depends on GIC |
| default 1 if GIC_V1 |
| default 2 if GIC_V2 |
| default 3 if GIC_V3 |
| |
| config GIC_SINGLE_SECURITY_STATE |
| bool |
| depends on GIC_V3 |
| help |
| Some ARM Cortex-family processors only supports single security |
| state. |
| |
| config GIC_V3_RDIST_MATCHING_AFF0_ONLY |
| bool |
| depends on GIC_V3 |
| default y if CPU_CORTEX_R52 |
| help |
| Some platforms only use aff0 to match mpdir and GICR.aff. With this |
| enabled, we find the target redistributor by comparing the aff0 only. |
| |
| config GIC_V3_ITS |
| bool "GIC v3 Interrupt Translation Service" |
| depends on GIC_V3 |
| # ITS generates Non-secure Group 1 LPI interrupts, requiring EL1NS |
| select ARMV8_A_NS |
| select DYNAMIC_INTERRUPTS |
| help |
| Support for the optional Interrupt Translation Service used to translate |
| hardware interrupt from PCIe MSI messages for example. Please note |
| that ITS uses dynamic memory, so HEAP_MEM_POOL_SIZE should be |
| enough to allocate ITS tables (size is probed at runtime). |
| |
| config GIC_SAFE_CONFIG |
| bool "GIC Distributor Safe Configuration" |
| depends on GIC_V3 |
| default n |
| help |
| In case of multiple OSes running on different CPU Cores which share the |
| same GIC controller, need to avoid the distributor re-configured to avoid |
| crash the OS has already been started. With this enabled, it will bypass |
| GIC distributor configuration if it has been configured by other OS. |
| |
| endif # CPU_CORTEX |
