Chloe M.
68 lines
1.5 KiB
C
68 lines
1.5 KiB
C
/*
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* Copyright (c) 2026, Chloe M.
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* Provided under the BSD-3 clause.
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*
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* Description: Local APIC driver
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* Author: Chloe M.
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*/
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#ifndef _MACHINE_LAPIC_H_
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#define _MACHINE_LAPIC_H_ 1
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#include <stdef.h>
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#include <hal/kpcr.h>
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/*
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* Destination shorthand values for inter-processor
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* interrupts.
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*
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* @IPI_XND_NONE: No shorthand
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* @IPI_XND_SELF: Self shorthand
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* @IPI_XND_AIS: All including self shorthand
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* @IPI_XND_AES: All exclduing self shorthand
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*/
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typedef enum {
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IPI_XND_NONE,
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IPI_XND_SELF,
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IPI_XND_AIS,
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IPI_XND_AES
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} IPI_SHORTHAND;
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/*
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* Delivery mode values for inter-processor
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* interrupts.
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*
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* @IPI_DELMOD_FIXED: Deliver a specific interrupt vector to a slutty core~
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* @IPI_LOWPRI: Equivalent to a FIXED IPI but lowest priority
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* @IPI_DELMOD_SMI: Sends an SMI, we don't use this
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* @IPI_DELMOD_RESERVED: Reserved
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* @IPI_DELMOD_NMI: Deliver a non-maskable interrupt
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* @IPI_DELMOD_INIT: Deliver an INIT IPI to a processor
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* @IPI_DELMOD_STARTUP: Deliver a STARTUP IPI to a processor
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*/
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typedef enum {
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IPI_DELMOD_FIXED,
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IPI_DELMOD_LOWPRI,
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IPI_DELMOD_SMI,
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IPI_DELMOD_RESERVED,
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IPI_DELMOD_NMI,
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IPI_DEMOD_INIT,
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IPI_DELMOD_STARTUP
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} IPI_DELMOD;
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/* IPI Delivery status bits */
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#define IPI_DELSTAT_PENDING BIT(0)
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/* IPI Destination mode */
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#define IPI_DELMOD_LOGICAL BIT(0)
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/*
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* Initialize the Local APIC unit for the current
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* processor.
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*
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* @Kpcr: KPCR of current processor
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*/
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VOID MdLapicInit(KPCR *Kpcr);
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#endif /* !_MACHINE_LAPIC_H_ */
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