120 lines
3.7 KiB
Plaintext
120 lines
3.7 KiB
Plaintext
# Multilevel interrupt configuration
|
|
|
|
# Copyright (c) 2017 Intel Corporation
|
|
# Copyright (c) 2018 Foundries.io
|
|
# SPDX-License-Identifier: Apache-2.0
|
|
|
|
config MULTI_LEVEL_INTERRUPTS
|
|
bool "Multi-level interrupt support"
|
|
depends on GEN_SW_ISR_TABLE
|
|
help
|
|
Multiple levels of interrupts are normally used to increase the
|
|
number of addressable interrupts in a system. For example, if two
|
|
levels are used, a second level interrupt aggregator would combine
|
|
all interrupts routed to it into one IRQ line in the first level
|
|
interrupt controller. If three levels are used, a third level
|
|
aggregator combines its input interrupts into one IRQ line at the
|
|
second level. The number of interrupt levels is usually determined
|
|
by the hardware. (The term "aggregator" here means "interrupt
|
|
controller".)
|
|
|
|
config MAX_IRQ_PER_AGGREGATOR
|
|
int "Max IRQs per interrupt aggregator"
|
|
default 0
|
|
depends on MULTI_LEVEL_INTERRUPTS
|
|
help
|
|
The maximum number of interrupt inputs to any aggregator in the
|
|
system.
|
|
|
|
config 2ND_LEVEL_INTERRUPTS
|
|
bool "Second-level interrupt support"
|
|
depends on MULTI_LEVEL_INTERRUPTS
|
|
help
|
|
Second level interrupts are used to increase the number of
|
|
addressable interrupts in a system.
|
|
|
|
config 2ND_LVL_ISR_TBL_OFFSET
|
|
int "Offset in _sw_isr_table for level 2 interrupts"
|
|
default 0
|
|
depends on 2ND_LEVEL_INTERRUPTS
|
|
help
|
|
This is the offset in _sw_isr_table, the generated ISR handler table,
|
|
where storage for 2nd level interrupt ISRs begins. This is
|
|
typically allocated after ISRs for level 1 interrupts.
|
|
|
|
config NUM_2ND_LEVEL_AGGREGATORS
|
|
int "Total number of second level interrupt aggregators"
|
|
range 1 8
|
|
default 1
|
|
depends on 2ND_LEVEL_INTERRUPTS
|
|
help
|
|
The number of level 2 interrupt aggregators to support. Each
|
|
aggregator can manage at most MAX_IRQ_PER_AGGREGATOR level 2
|
|
interrupts.
|
|
|
|
prev-level-num = 1
|
|
cur-level-num = 2
|
|
cur-level = 2ND
|
|
aggregator = 0
|
|
rsource "Kconfig.multilevel.aggregator_template"
|
|
aggregator = 1
|
|
rsource "Kconfig.multilevel.aggregator_template"
|
|
aggregator = 2
|
|
rsource "Kconfig.multilevel.aggregator_template"
|
|
aggregator = 3
|
|
rsource "Kconfig.multilevel.aggregator_template"
|
|
aggregator = 4
|
|
rsource "Kconfig.multilevel.aggregator_template"
|
|
aggregator = 5
|
|
rsource "Kconfig.multilevel.aggregator_template"
|
|
aggregator = 6
|
|
rsource "Kconfig.multilevel.aggregator_template"
|
|
aggregator = 7
|
|
rsource "Kconfig.multilevel.aggregator_template"
|
|
|
|
config 3RD_LEVEL_INTERRUPTS
|
|
bool "Third-level interrupt support"
|
|
depends on 2ND_LEVEL_INTERRUPTS
|
|
help
|
|
Third level interrupts are used to increase the number of
|
|
addressable interrupts in a system.
|
|
|
|
config NUM_3RD_LEVEL_AGGREGATORS
|
|
int "Total number of third level interrupt aggregators"
|
|
range 1 8
|
|
default 1
|
|
depends on 3RD_LEVEL_INTERRUPTS
|
|
help
|
|
The number of level 3 interrupt aggregators to support. Each
|
|
aggregator can manage at most MAX_IRQ_PER_AGGREGATOR level 3
|
|
interrupts.
|
|
|
|
config 3RD_LVL_ISR_TBL_OFFSET
|
|
int "Offset in _sw_isr_table for level 3 interrupts"
|
|
default 0
|
|
depends on 3RD_LEVEL_INTERRUPTS
|
|
help
|
|
This is the offset in _sw_isr_table, the generated ISR handler table,
|
|
where storage for 3rd level interrupt ISRs begins. This is
|
|
typically allocated after ISRs for level 2 interrupts.
|
|
|
|
prev-level-num = 2
|
|
cur-level-num = 3
|
|
cur-level = 3RD
|
|
aggregator = 0
|
|
rsource "Kconfig.multilevel.aggregator_template"
|
|
aggregator = 1
|
|
rsource "Kconfig.multilevel.aggregator_template"
|
|
aggregator = 2
|
|
rsource "Kconfig.multilevel.aggregator_template"
|
|
aggregator = 3
|
|
rsource "Kconfig.multilevel.aggregator_template"
|
|
aggregator = 4
|
|
rsource "Kconfig.multilevel.aggregator_template"
|
|
aggregator = 5
|
|
rsource "Kconfig.multilevel.aggregator_template"
|
|
aggregator = 6
|
|
rsource "Kconfig.multilevel.aggregator_template"
|
|
aggregator = 7
|
|
rsource "Kconfig.multilevel.aggregator_template"
|