1 files changed, 135 insertions, 0 deletions
diff --git a/arch/x86/include/asm/hw_irq.h b/arch/x86/include/asm/hw_irq.h
new file mode 100644
index 000000000..d465ece58
--- /dev/null
+++ b/arch/x86/include/asm/hw_irq.h
@@ -0,0 +1,135 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_HW_IRQ_H
+#define _ASM_X86_HW_IRQ_H
+
+/*
+ * (C) 1992, 1993 Linus Torvalds, (C) 1997 Ingo Molnar
+ *
+ * moved some of the old arch/i386/kernel/irq.h to here. VY
+ *
+ * IRQ/IPI changes taken from work by Thomas Radke
+ * <tomsoft@informatik.tu-chemnitz.de>
+ *
+ * hacked by Andi Kleen for x86-64.
+ * unified by tglx
+ */
+
+#include <asm/irq_vectors.h>
+
+#define IRQ_MATRIX_BITS		NR_VECTORS
+
+#ifndef __ASSEMBLY__
+
+#include <linux/percpu.h>
+#include <linux/profile.h>
+#include <linux/smp.h>
+
+#include <linux/atomic.h>
+#include <asm/irq.h>
+#include <asm/sections.h>
+
+#ifdef	CONFIG_X86_LOCAL_APIC
+struct irq_data;
+struct pci_dev;
+struct msi_desc;
+
+enum irq_alloc_type {
+	X86_IRQ_ALLOC_TYPE_IOAPIC = 1,
+	X86_IRQ_ALLOC_TYPE_HPET,
+	X86_IRQ_ALLOC_TYPE_PCI_MSI,
+	X86_IRQ_ALLOC_TYPE_PCI_MSIX,
+	X86_IRQ_ALLOC_TYPE_DMAR,
+	X86_IRQ_ALLOC_TYPE_AMDVI,
+	X86_IRQ_ALLOC_TYPE_UV,
+};
+
+struct ioapic_alloc_info {
+	int		pin;
+	int		node;
+	u32		is_level	: 1;
+	u32		active_low	: 1;
+	u32		valid		: 1;
+};
+
+struct uv_alloc_info {
+	int		limit;
+	int		blade;
+	unsigned long	offset;
+	char		*name;
+
+};
+
+/**
+ * irq_alloc_info - X86 specific interrupt allocation info
+ * @type:	X86 specific allocation type
+ * @flags:	Flags for allocation tweaks
+ * @devid:	Device ID for allocations
+ * @hwirq:	Associated hw interrupt number in the domain
+ * @mask:	CPU mask for vector allocation
+ * @desc:	Pointer to msi descriptor
+ * @data:	Allocation specific data
+ *
+ * @ioapic:	IOAPIC specific allocation data
+ * @uv:		UV specific allocation data
+*/
+struct irq_alloc_info {
+	enum irq_alloc_type	type;
+	u32			flags;
+	u32			devid;
+	irq_hw_number_t		hwirq;
+	const struct cpumask	*mask;
+	struct msi_desc		*desc;
+	void			*data;
+
+	union {
+		struct ioapic_alloc_info	ioapic;
+		struct uv_alloc_info		uv;
+	};
+};
+
+struct irq_cfg {
+	unsigned int		dest_apicid;
+	unsigned int		vector;
+};
+
+extern struct irq_cfg *irq_cfg(unsigned int irq);
+extern struct irq_cfg *irqd_cfg(struct irq_data *irq_data);
+extern void lock_vector_lock(void);
+extern void unlock_vector_lock(void);
+#ifdef CONFIG_SMP
+extern void send_cleanup_vector(struct irq_cfg *);
+extern void irq_complete_move(struct irq_cfg *cfg);
+#else
+static inline void send_cleanup_vector(struct irq_cfg *c) { }
+static inline void irq_complete_move(struct irq_cfg *c) { }
+#endif
+
+extern void apic_ack_edge(struct irq_data *data);
+#else	/*  CONFIG_X86_LOCAL_APIC */
+static inline void lock_vector_lock(void) {}
+static inline void unlock_vector_lock(void) {}
+#endif	/* CONFIG_X86_LOCAL_APIC */
+
+/* Statistics */
+extern atomic_t irq_err_count;
+extern atomic_t irq_mis_count;
+
+extern void elcr_set_level_irq(unsigned int irq);
+
+extern char irq_entries_start[];
+#ifdef CONFIG_TRACING
+#define trace_irq_entries_start irq_entries_start
+#endif
+
+extern char spurious_entries_start[];
+
+#define VECTOR_UNUSED		NULL
+#define VECTOR_SHUTDOWN		((void *)-1L)
+#define VECTOR_RETRIGGERED	((void *)-2L)
+
+typedef struct irq_desc* vector_irq_t[NR_VECTORS];
+DECLARE_PER_CPU(vector_irq_t, vector_irq);
+
+#endif /* !ASSEMBLY_ */
+
+#endif /* _ASM_X86_HW_IRQ_H */