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testsuite: utils: use IPI instead of int instruction for testing on x86

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For x86, make the testing purpose trigger_irq() function to send
interrupt processor interrupt to CPU by APIC, instead of executing
INT instruction. Doing this because:
1. It can be controlled by irq lock, more close to trigger irq.
2. We don't need to hardcode the interrupt vector.

Signed-off-by: Enjia Mai <enjiax.mai@intel.com>
This commit is contained in:
Enjia Mai 2021-05-21 09:55:09 +08:00 • committed by Anas Nashif
commit db3fa50916
1 changed files with 24 additions and 1 deletions
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25
subsys/testsuite/include/interrupt_util.h
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@ -101,8 +101,31 @@ static inline void trigger_irq(int irq)
}
#elif defined(CONFIG_X86)
#include <drivers/interrupt_controller/loapic.h>
#include <sys/arch_interface.h>
#define trigger_irq(irq) __asm__ volatile("int %0" : : "i" (irq) : "memory")
#define TRIGGER_IRQ_INT(vector) __asm__ volatile("int %0" : : "i" (vector) : "memory")
/*
* Write Local APIC's ICR to trigger IPI for testing
* Delivery Mode: Fixed
* Destination Mode: Physical
* Level: Assert
* Trigger Mode: Edge
* Destination Shorthand: No Shorthand
* Destination: depends on cpu_id
*/
#define LOAPIC_ICR_IPI_TEST 0x00004000U
static inline void trigger_irq(int vector)
{
#ifdef CONFIG_SMP
int cpu_id = arch_curr_cpu()->id;
#else
int cpu_id = 0;
#endif
z_loapic_ipi(cpu_id, LOAPIC_ICR_IPI_TEST, vector);
}
#elif defined(CONFIG_ARCH_POSIX)
#include "irq_ctrl.h"