ContributorThe cyclone v soc GIC interrupt priority issues
Hi,
Please check this below API function, you can also directly set the LEVEL or EDGE triggered.
ALT_STATUS_CODE alt_int_dist_trigger_set(ALT_INT_INTERRUPT_t int_id,
ALT_INT_TRIGGER_t trigger_type)
{
// See GIC 1.0, section 4.3.12.
if ((uint32_t)int_id >= ALT_INT_PROVISION_INT_COUNT)
{
return ALT_E_BAD_ARG;
}
else if ((alt_int_flag[int_id] & INT_FLAG_IMPLEMENTED) == 0)
{
return ALT_E_BAD_ARG;
}
else if (int_id < 16)
{
if ( (trigger_type == ALT_INT_TRIGGER_AUTODETECT)
|| (trigger_type == ALT_INT_TRIGGER_SOFTWARE))
{
return ALT_E_SUCCESS;
}
else
{
return ALT_E_BAD_ARG;
}
}
else
{
uint32_t regoffset = int_id >> 4;
uint32_t regbitshift = ((int_id & 0x0F) * 2) + 1;
if (trigger_type == ALT_INT_TRIGGER_AUTODETECT)
{
if (int_id <= 32) { trigger_type = ALT_INT_TRIGGER_EDGE; } // PPI
else if (int_id <= 40) { trigger_type = ALT_INT_TRIGGER_EDGE; } // CPU0_PARITYFAIL
else if (int_id <= 47) { trigger_type = ALT_INT_TRIGGER_LEVEL; } // CPU0_DEFLAGS
else if (int_id <= 56) { trigger_type = ALT_INT_TRIGGER_EDGE; } // CPU1_PARITYFAIL
else if (int_id <= 63) { trigger_type = ALT_INT_TRIGGER_LEVEL; } // CPU1_DEFLAGS
else if (int_id <= 66) { trigger_type = ALT_INT_TRIGGER_EDGE; } // SCU
else if (int_id <= 69) { trigger_type = ALT_INT_TRIGGER_EDGE; } // L2_ECC
else if (int_id <= 70) { trigger_type = ALT_INT_TRIGGER_LEVEL; } // L2 (other)
else if (int_id <= 71) { trigger_type = ALT_INT_TRIGGER_LEVEL; } // DDR
else if (int_id <= 135) { /* do nothing */ } // FPGA, !!!
else { trigger_type = ALT_INT_TRIGGER_LEVEL; } // everything else
}
switch (trigger_type)
{
case ALT_INT_TRIGGER_LEVEL:
alt_clrbits_word(alt_int_base_dist + 0xC00 + regoffset * sizeof(uint32_t), 1 << regbitshift); // icdicfrn
break;
case ALT_INT_TRIGGER_EDGE:
alt_setbits_word(alt_int_base_dist + 0xC00 + regoffset * sizeof(uint32_t), 1 << regbitshift); // icdicfrn
break;
default:
return ALT_E_BAD_ARG;
}
return ALT_E_SUCCESS;
}
}
"Did you suggest I test the time form the isr signal send to GIC to the interrupt callback function called". Yes in C code only can write piece of code for timer before ISR start and end.
Regards
Tiwari
