icc_eoir1_el1_t Union Reference

ICC_EOIR1_EL1 — Interrupt Controller End Of Interrupt Register 1. More...

Data Fields
uint64_t	raw
	Raw 64-bit register value.
struct {
uint32_t   intid: 24
	[23:0] INTID: The INTID to deactivate/drop priority for. Must match the value previously read from ICC_IAR1_EL1.
uint64_t   res0: 40
	[63:24] Reserved.
};

Detailed Description

ICC_EOIR1_EL1 — Interrupt Controller End Of Interrupt Register 1.

Write-only. Writing the INTID obtained from ICC_IAR1_EL1 signals End of Interrupt for the corresponding Group 1 interrupt.

When ICC_CTLR_EL1.EOImode == 0: performs priority drop AND deactivation. When ICC_CTLR_EL1.EOImode == 1: performs priority drop ONLY; a separate write to ICC_DIR_EL1 is required for deactivation.

Note: Always write the INTID value read from ICC_IAR1_EL1, not a modified value. Writing an incorrect INTID is UNPREDICTABLE.

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The documentation for this union was generated from the following file:

• src/kernel/drivers/gicv3.c