Title: Test to verify the behavior of CONFIG_ZERO_LATENCY_IRQS at runtime (ARM Only)
Description:
This test verifies the behavior of CONFIG_ZERO_LATENCY_IRQS at runtime.
In particular, it tests that IRQs configured with the IRQ_ZERO_LATENCY
flag are assigned the highest priority in the system (and, therefore,
cannot be masked-out by irq_lock()).
Only for ARMv7-M and ARMv8-M Mainline targets.
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Building and Running Project:
This project outputs to the console. It can be built and executed on QEMU as
follows:
ninja/make run
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Troubleshooting:
Problems caused by out-dated project information can be addressed by
issuing one of the following commands then rebuilding the project:
ninja/make clean # discard results of previous builds
# but keep existing configuration info
or
ninja/make pristine # discard results of previous builds
# and restore pre-defined configuration info
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Sample Output:
Running test suite zero_latency_irqs
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starting test - test_arm_zero_latency_irqs
Available IRQ line: 70
PASS - test_arm_zero_latency_irqs
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Test suite zero_latency_irqs succeeded
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PROJECT EXECUTION SUCCESSFUL
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