01264d23db
Multilevel interrupt configs are leaking into every single build without this option being enabled, so guard the Kconfig and include files to avoid this. Signed-off-by: Anas Nashif <anas.nashif@intel.com>
146 lines
4.3 KiB
Plaintext
146 lines
4.3 KiB
Plaintext
# Multilevel interrupt configuration
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# Copyright (c) 2017 Intel Corporation
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# Copyright (c) 2018 Foundries.io
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# SPDX-License-Identifier: Apache-2.0
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config MULTI_LEVEL_INTERRUPTS
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bool "Multi-level interrupt support"
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depends on GEN_SW_ISR_TABLE
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help
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Multiple levels of interrupts are normally used to increase the
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number of addressable interrupts in a system. For example, if two
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levels are used, a second level interrupt aggregator would combine
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all interrupts routed to it into one IRQ line in the first level
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interrupt controller. If three levels are used, a third level
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aggregator combines its input interrupts into one IRQ line at the
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second level. The number of interrupt levels is usually determined
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by the hardware. (The term "aggregator" here means "interrupt
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controller".)
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if MULTI_LEVEL_INTERRUPTS
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config 1ST_LEVEL_INTERRUPT_BITS
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int "Total number of first level interrupt bits"
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range 1 32
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default 8
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help
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The number of bits to use of the 32 bit interrupt mask for first
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tier interrupts.
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config MAX_IRQ_PER_AGGREGATOR
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int "Max IRQs per interrupt aggregator"
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default 0
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help
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The maximum number of interrupt inputs to any aggregator in the
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system.
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config 2ND_LEVEL_INTERRUPTS
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bool "Second-level interrupt support"
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help
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Second level interrupts are used to increase the number of
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addressable interrupts in a system.
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config 2ND_LVL_ISR_TBL_OFFSET
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int "Offset in _sw_isr_table for level 2 interrupts"
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default 0
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depends on 2ND_LEVEL_INTERRUPTS
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help
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This is the offset in _sw_isr_table, the generated ISR handler table,
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where storage for 2nd level interrupt ISRs begins. This is
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typically allocated after ISRs for level 1 interrupts.
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config NUM_2ND_LEVEL_AGGREGATORS
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int "Total number of second level interrupt aggregators"
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range 1 8
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default 1
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depends on 2ND_LEVEL_INTERRUPTS
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help
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The number of level 2 interrupt aggregators to support. Each
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aggregator can manage at most MAX_IRQ_PER_AGGREGATOR level 2
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interrupts.
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config 2ND_LEVEL_INTERRUPT_BITS
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int "Total number of second level interrupt bits"
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range 0 31
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default 8
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help
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The number of bits to use of the 32 bit interrupt mask for second
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tier interrupts.
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prev-level-num = 1
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cur-level-num = 2
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cur-level = 2ND
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aggregator = 0
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rsource "Kconfig.multilevel.aggregator_template"
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aggregator = 1
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rsource "Kconfig.multilevel.aggregator_template"
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aggregator = 2
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rsource "Kconfig.multilevel.aggregator_template"
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aggregator = 3
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rsource "Kconfig.multilevel.aggregator_template"
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aggregator = 4
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rsource "Kconfig.multilevel.aggregator_template"
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aggregator = 5
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rsource "Kconfig.multilevel.aggregator_template"
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aggregator = 6
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rsource "Kconfig.multilevel.aggregator_template"
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aggregator = 7
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rsource "Kconfig.multilevel.aggregator_template"
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config 3RD_LEVEL_INTERRUPTS
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bool "Third-level interrupt support"
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depends on 2ND_LEVEL_INTERRUPTS
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help
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Third level interrupts are used to increase the number of
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addressable interrupts in a system.
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config NUM_3RD_LEVEL_AGGREGATORS
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int "Total number of third level interrupt aggregators"
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range 1 8
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default 1
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depends on 3RD_LEVEL_INTERRUPTS
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help
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The number of level 3 interrupt aggregators to support. Each
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aggregator can manage at most MAX_IRQ_PER_AGGREGATOR level 3
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interrupts.
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config 3RD_LVL_ISR_TBL_OFFSET
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int "Offset in _sw_isr_table for level 3 interrupts"
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default 0
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depends on 3RD_LEVEL_INTERRUPTS
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help
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This is the offset in _sw_isr_table, the generated ISR handler table,
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where storage for 3rd level interrupt ISRs begins. This is
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typically allocated after ISRs for level 2 interrupts.
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config 3RD_LEVEL_INTERRUPT_BITS
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int "Total number of third level interrupt bits"
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range 0 30
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default 8
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help
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The number of bits to use of the 32 bit interrupt mask for third
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tier interrupts.
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prev-level-num = 2
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cur-level-num = 3
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cur-level = 3RD
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aggregator = 0
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rsource "Kconfig.multilevel.aggregator_template"
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aggregator = 1
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rsource "Kconfig.multilevel.aggregator_template"
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aggregator = 2
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rsource "Kconfig.multilevel.aggregator_template"
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aggregator = 3
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rsource "Kconfig.multilevel.aggregator_template"
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aggregator = 4
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rsource "Kconfig.multilevel.aggregator_template"
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aggregator = 5
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rsource "Kconfig.multilevel.aggregator_template"
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aggregator = 6
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rsource "Kconfig.multilevel.aggregator_template"
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aggregator = 7
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rsource "Kconfig.multilevel.aggregator_template"
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endif
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