60 lines
2.4 KiB
C
60 lines
2.4 KiB
C
/*
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* Copyright (C) 2018 Intel Corporation. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef IOAPIC_H
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#define IOAPIC_H
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/* IOAPIC_MAX_LINES is architecturally defined.
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* The usable RTEs may be a subset of the total on a per IO APIC basis.
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*/
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#define IOAPIC_MAX_LINES 120
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#define NR_LEGACY_IRQ 16
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#define NR_LEGACY_PIN NR_LEGACY_IRQ
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#define NR_MAX_GSI (NR_IOAPICS*IOAPIC_MAX_LINES)
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#define GSI_MASK_IRQ(irq) irq_gsi_mask_unmask((irq), true)
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#define GSI_UNMASK_IRQ(irq) irq_gsi_mask_unmask((irq), false)
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#define GSI_SET_RTE(irq, rte) ioapic_set_rte((irq), (rte))
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void setup_ioapic_irq(void);
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int get_ioapic_info(char *str, int str_max_len);
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bool irq_is_gsi(int irq);
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int irq_gsi_num(void);
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int irq_to_pin(int irq);
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int pin_to_irq(int pin);
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void irq_gsi_mask_unmask(int irq, bool mask);
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void ioapic_set_rte(int irq, uint64_t rte);
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void ioapic_get_rte(int irq, uint64_t *rte);
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extern uint16_t legacy_irq_to_pin[];
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extern uint16_t pic_ioapic_pin_map[];
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#endif /* IOAPIC_H */
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