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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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2976fd8417
This function does irq-remapping specific interrupt setup like modifying the chip defaults. Signed-off-by: Joerg Roedel <joro@8bytes.org> Acked-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc> Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
108 lines
3.4 KiB
C
108 lines
3.4 KiB
C
/*
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* Copyright (C) 2012 Advanced Micro Devices, Inc.
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* Author: Joerg Roedel <joerg.roedel@amd.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published
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* by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* This header file contains the interface of the interrupt remapping code to
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* the x86 interrupt management code.
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*/
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#ifndef __X86_IRQ_REMAPPING_H
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#define __X86_IRQ_REMAPPING_H
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#include <asm/io_apic.h>
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#ifdef CONFIG_IRQ_REMAP
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extern void setup_irq_remapping_ops(void);
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extern int irq_remapping_supported(void);
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extern int irq_remapping_prepare(void);
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extern int irq_remapping_enable(void);
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extern void irq_remapping_disable(void);
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extern int irq_remapping_reenable(int);
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extern int irq_remap_enable_fault_handling(void);
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extern int setup_ioapic_remapped_entry(int irq,
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struct IO_APIC_route_entry *entry,
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unsigned int destination,
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int vector,
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struct io_apic_irq_attr *attr);
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extern void free_remapped_irq(int irq);
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extern void compose_remapped_msi_msg(struct pci_dev *pdev,
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unsigned int irq, unsigned int dest,
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struct msi_msg *msg, u8 hpet_id);
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extern int setup_hpet_msi_remapped(unsigned int irq, unsigned int id);
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extern void panic_if_irq_remap(const char *msg);
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extern bool setup_remapped_irq(int irq,
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struct irq_cfg *cfg,
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struct irq_chip *chip);
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static inline bool irq_remapped(struct irq_cfg *cfg)
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{
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return (cfg->remapped == 1);
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}
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void irq_remap_modify_chip_defaults(struct irq_chip *chip);
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#else /* CONFIG_IRQ_REMAP */
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static inline void setup_irq_remapping_ops(void) { }
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static inline int irq_remapping_supported(void) { return 0; }
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static inline int irq_remapping_prepare(void) { return -ENODEV; }
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static inline int irq_remapping_enable(void) { return -ENODEV; }
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static inline void irq_remapping_disable(void) { }
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static inline int irq_remapping_reenable(int eim) { return -ENODEV; }
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static inline int irq_remap_enable_fault_handling(void) { return -ENODEV; }
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static inline int setup_ioapic_remapped_entry(int irq,
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struct IO_APIC_route_entry *entry,
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unsigned int destination,
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int vector,
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struct io_apic_irq_attr *attr)
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{
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return -ENODEV;
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}
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static inline void free_remapped_irq(int irq) { }
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static inline void compose_remapped_msi_msg(struct pci_dev *pdev,
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unsigned int irq, unsigned int dest,
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struct msi_msg *msg, u8 hpet_id)
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{
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}
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static inline int setup_hpet_msi_remapped(unsigned int irq, unsigned int id)
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{
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return -ENODEV;
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}
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static inline void panic_if_irq_remap(const char *msg)
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{
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}
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static inline bool irq_remapped(struct irq_cfg *cfg)
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{
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return false;
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}
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static inline void irq_remap_modify_chip_defaults(struct irq_chip *chip)
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{
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}
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static inline bool setup_remapped_irq(int irq,
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struct irq_cfg *cfg,
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struct irq_chip *chip)
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{
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return false;
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}
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#endif /* CONFIG_IRQ_REMAP */
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#endif /* __X86_IRQ_REMAPPING_H */
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