1 files changed, 83 insertions, 159 deletions

diff --git a/arch/x86/include/asm/hw_irq.h b/arch/x86/include/asm/hw_irq.h
index e4ac559c4a24..cbe19e669080 100644
--- a/arch/x86/include/asm/hw_irq.h
+++ b/arch/x86/include/asm/hw_irq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_HW_IRQ_H
 #define _ASM_X86_HW_IRQ_H
 
@@ -15,7 +16,7 @@
 
 #include <asm/irq_vectors.h>
 
-#ifndef __ASSEMBLY__
+#ifndef __ASSEMBLER__
 
 #include <linux/percpu.h>
 #include <linux/profile.h>
@@ -25,187 +26,110 @@
 #include <asm/irq.h>
 #include <asm/sections.h>
 
-/* Interrupt handlers registered during init_IRQ */
-extern void apic_timer_interrupt(void);
-extern void x86_platform_ipi(void);
-extern void kvm_posted_intr_ipi(void);
-extern void error_interrupt(void);
-extern void irq_work_interrupt(void);
-
-extern void spurious_interrupt(void);
-extern void thermal_interrupt(void);
-extern void reschedule_interrupt(void);
-
-extern void invalidate_interrupt(void);
-extern void invalidate_interrupt0(void);
-extern void invalidate_interrupt1(void);
-extern void invalidate_interrupt2(void);
-extern void invalidate_interrupt3(void);
-extern void invalidate_interrupt4(void);
-extern void invalidate_interrupt5(void);
-extern void invalidate_interrupt6(void);
-extern void invalidate_interrupt7(void);
-extern void invalidate_interrupt8(void);
-extern void invalidate_interrupt9(void);
-extern void invalidate_interrupt10(void);
-extern void invalidate_interrupt11(void);
-extern void invalidate_interrupt12(void);
-extern void invalidate_interrupt13(void);
-extern void invalidate_interrupt14(void);
-extern void invalidate_interrupt15(void);
-extern void invalidate_interrupt16(void);
-extern void invalidate_interrupt17(void);
-extern void invalidate_interrupt18(void);
-extern void invalidate_interrupt19(void);
-extern void invalidate_interrupt20(void);
-extern void invalidate_interrupt21(void);
-extern void invalidate_interrupt22(void);
-extern void invalidate_interrupt23(void);
-extern void invalidate_interrupt24(void);
-extern void invalidate_interrupt25(void);
-extern void invalidate_interrupt26(void);
-extern void invalidate_interrupt27(void);
-extern void invalidate_interrupt28(void);
-extern void invalidate_interrupt29(void);
-extern void invalidate_interrupt30(void);
-extern void invalidate_interrupt31(void);
-
-extern void irq_move_cleanup_interrupt(void);
-extern void reboot_interrupt(void);
-extern void threshold_interrupt(void);
-
-extern void call_function_interrupt(void);
-extern void call_function_single_interrupt(void);
-
-#ifdef CONFIG_TRACING
-/* Interrupt handlers registered during init_IRQ */
-extern void trace_apic_timer_interrupt(void);
-extern void trace_x86_platform_ipi(void);
-extern void trace_error_interrupt(void);
-extern void trace_irq_work_interrupt(void);
-extern void trace_spurious_interrupt(void);
-extern void trace_thermal_interrupt(void);
-extern void trace_reschedule_interrupt(void);
-extern void trace_threshold_interrupt(void);
-extern void trace_call_function_interrupt(void);
-extern void trace_call_function_single_interrupt(void);
-#define trace_irq_move_cleanup_interrupt  irq_move_cleanup_interrupt
-#define trace_reboot_interrupt  reboot_interrupt
-#define trace_kvm_posted_intr_ipi kvm_posted_intr_ipi
-#endif /* CONFIG_TRACING */
-
-/* IOAPIC */
-#define IO_APIC_IRQ(x) (((x) >= NR_IRQS_LEGACY) || ((1<<(x)) & io_apic_irqs))
-extern unsigned long io_apic_irqs;
-
-extern void init_VISWS_APIC_irqs(void);
-extern void setup_IO_APIC(void);
-extern void disable_IO_APIC(void);
-
-struct io_apic_irq_attr {
-	int ioapic;
-	int ioapic_pin;
-	int trigger;
-	int polarity;
+#ifdef	CONFIG_IRQ_DOMAIN_HIERARCHY
+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,
 };
 
-static inline void set_io_apic_irq_attr(struct io_apic_irq_attr *irq_attr,
-					int ioapic, int ioapic_pin,
-					int trigger, int polarity)
-{
-	irq_attr->ioapic	= ioapic;
-	irq_attr->ioapic_pin	= ioapic_pin;
-	irq_attr->trigger	= trigger;
-	irq_attr->polarity	= polarity;
-}
-
-/* Intel specific interrupt remapping information */
-struct irq_2_iommu {
-	struct intel_iommu *iommu;
-	u16 irte_index;
-	u16 sub_handle;
-	u8  irte_mask;
+struct ioapic_alloc_info {
+	int		pin;
+	int		node;
+	u32		is_level	: 1;
+	u32		active_low	: 1;
+	u32		valid		: 1;
 };
 
-/* AMD specific interrupt remapping information */
-struct irq_2_irte {
-	u16 devid; /* Device ID for IRTE table */
-	u16 index; /* Index into IRTE table*/
+struct uv_alloc_info {
+	int		limit;
+	int		blade;
+	unsigned long	offset;
+	char		*name;
+
 };
 
-/*
- * This is performance-critical, we want to do it O(1)
+/**
+ * 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
  *
- * Most irqs are mapped 1:1 with pins.
- */
-struct irq_cfg {
-	struct irq_pin_list	*irq_2_pin;
-	cpumask_var_t		domain;
-	cpumask_var_t		old_domain;
-	u8			vector;
-	u8			move_in_progress : 1;
-#ifdef CONFIG_IRQ_REMAP
-	u8			remapped : 1;
+ * @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 irq_2_iommu irq_2_iommu;
-		struct irq_2_irte  irq_2_irte;
+		struct ioapic_alloc_info	ioapic;
+		struct uv_alloc_info		uv;
 	};
-#endif
 };
 
-extern int assign_irq_vector(int, struct irq_cfg *, const struct cpumask *);
-extern void send_cleanup_vector(struct irq_cfg *);
+struct irq_cfg {
+	unsigned int		dest_apicid;
+	unsigned int		vector;
+};
 
-struct irq_data;
-int __ioapic_set_affinity(struct irq_data *, const struct cpumask *,
-			  unsigned int *dest_id);
-extern int IO_APIC_get_PCI_irq_vector(int bus, int devfn, int pin, struct io_apic_irq_attr *irq_attr);
-extern void setup_ioapic_dest(void);
+extern struct irq_cfg *irq_cfg(unsigned int irq);
+extern struct irq_cfg *irqd_cfg(struct irq_data *irq_data);
+#ifdef CONFIG_SMP
+extern void vector_schedule_cleanup(struct irq_cfg *);
+extern void irq_complete_move(struct irq_cfg *cfg);
+#else
+static inline void vector_schedule_cleanup(struct irq_cfg *c) { }
+static inline void irq_complete_move(struct irq_cfg *c) { }
+#endif
+extern void apic_ack_edge(struct irq_data *data);
+#endif /* CONFIG_IRQ_DOMAIN_HIERARCHY */
 
-extern void enable_IO_APIC(void);
+#ifdef CONFIG_X86_LOCAL_APIC
+extern void lock_vector_lock(void);
+extern void unlock_vector_lock(void);
+#else
+static inline void lock_vector_lock(void) {}
+static inline void unlock_vector_lock(void) {}
+#endif
 
 /* Statistics */
 extern atomic_t irq_err_count;
 extern atomic_t irq_mis_count;
 
-/* EISA */
-extern void eisa_set_level_irq(unsigned int irq);
+extern void elcr_set_level_irq(unsigned int irq);
 
-/* SMP */
-extern void smp_apic_timer_interrupt(struct pt_regs *);
-extern void smp_spurious_interrupt(struct pt_regs *);
-extern void smp_x86_platform_ipi(struct pt_regs *);
-extern void smp_error_interrupt(struct pt_regs *);
-#ifdef CONFIG_X86_IO_APIC
-extern asmlinkage void smp_irq_move_cleanup_interrupt(void);
-#endif
-#ifdef CONFIG_SMP
-extern void smp_reschedule_interrupt(struct pt_regs *);
-extern void smp_call_function_interrupt(struct pt_regs *);
-extern void smp_call_function_single_interrupt(struct pt_regs *);
-#ifdef CONFIG_X86_32
-extern void smp_invalidate_interrupt(struct pt_regs *);
-#else
-extern asmlinkage void smp_invalidate_interrupt(struct pt_regs *);
-#endif
+extern char irq_entries_start[];
+#ifdef CONFIG_TRACING
+#define trace_irq_entries_start irq_entries_start
 #endif
 
-extern void (*__initconst interrupt[NR_VECTORS-FIRST_EXTERNAL_VECTOR])(void);
+extern char spurious_entries_start[];
 
-typedef int vector_irq_t[NR_VECTORS];
-DECLARE_PER_CPU(vector_irq_t, vector_irq);
-extern void setup_vector_irq(int cpu);
+#define VECTOR_UNUSED		NULL
+#define VECTOR_SHUTDOWN		((void *)-1L)
+#define VECTOR_RETRIGGERED	((void *)-2L)
 
-#ifdef CONFIG_X86_IO_APIC
-extern void lock_vector_lock(void);
-extern void unlock_vector_lock(void);
-extern void __setup_vector_irq(int cpu);
-#else
-static inline void lock_vector_lock(void) {}
-static inline void unlock_vector_lock(void) {}
-static inline void __setup_vector_irq(int cpu) {}
-#endif
+typedef struct irq_desc* vector_irq_t[NR_VECTORS];
+DECLARE_PER_CPU(vector_irq_t, vector_irq);
 
-#endif /* !ASSEMBLY_ */
+#endif /* !__ASSEMBLER__ */
 
 #endif /* _ASM_X86_HW_IRQ_H */