#define pr_fmt(fmt) "DMAR-IR: " fmt
#include <linux/interrupt.h>
#include <linux/dmar.h>
#include <linux/spinlock.h>
#include <linux/slab.h>
#include <linux/jiffies.h>
#include <linux/hpet.h>
#include <linux/pci.h>
#include <linux/irq.h>
#include <linux/intel-iommu.h>
#include <linux/acpi.h>
#include <linux/irqdomain.h>
#include <linux/crash_dump.h>
#include <asm/io_apic.h>
#include <asm/smp.h>
#include <asm/cpu.h>
#include <asm/irq_remapping.h>
#include <asm/pci-direct.h>
#include <asm/msidef.h>
#include "irq_remapping.h"
enum irq_mode {
IRQ_REMAPPING,
IRQ_POSTING,
};
struct ioapic_scope {
struct intel_iommu *iommu;
unsigned int id;
unsigned int bus; /* PCI bus number */
unsigned int devfn; /* PCI devfn number */
};
struct hpet_scope {
struct intel_iommu *iommu;
u8 id;
unsigned int bus;
unsigned int devfn;
};
struct irq_2_iommu {
struct intel_iommu *iommu;
u16 irte_index;
u16 sub_handle;
u8 irte_mask;
enum irq_mode mode;
};
struct intel_ir_data {
struct irq_2_iommu irq_2_iommu;
struct irte irte_entry;
union {
struct msi_msg msi_entry;
};
};
#define IR_X2APIC_MODE(mode) (mode ? (1 << 11) : 0)
#define IRTE_DEST(dest) ((eim_mode) ? dest : dest << 8)
static int __read_most