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tests: arm: adjust test for relocated rom

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Add a memory barrier to make sure write to NVIC is completed
before continuing with the test fails in scenarios where
CONFIG_ROMSTART_RELOCATION_ROM is enabled for boards like MPS3
Corstone310 and k_sem_take is called before the isr's are called.

Signed-off-by: Sudan Landge <sudan.landge@arm.com>
This commit is contained in:
Sudan Landge 2025-03-19 11:37:20 +00:00 • committed by Benjamin Cabé
commit a1e3083def
1 changed files with 9 additions and 0 deletions
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9
tests/arch/arm/arm_irq_vector_table/src/arm_irq_vector_table.c
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@ -119,6 +119,15 @@ ZTEST(vector_table, test_arm_irq_vector_table)
#endif
}
/*
* It is recommended to have a DSB followed by ISB while
* enabling interrupts using NVIC. Also without this, the
* test fails in scenarios where CONFIG_ROMSTART_RELOCATION_ROM is
* enabled e.g. MPS3 Corstone310.
*/
__DSB(); /* Ensure write to NVIC completes before continuing */
__ISB(); /* Ensure that IRQ is executed */
zassert_false((k_sem_take(&sem[0], K_NO_WAIT) || k_sem_take(&sem[1], K_NO_WAIT) ||
k_sem_take(&sem[2], K_NO_WAIT)),
NULL);