1 files changed, 103 insertions, 0 deletions
diff --git a/arch/x86/include/asm/irq_remapping.h b/arch/x86/include/asm/irq_remapping.h
new file mode 100644
index 000000000000..dcb0c7231028
--- /dev/null
+++ b/arch/x86/include/asm/irq_remapping.h
@@ -0,0 +1,103 @@
+/*
+ * Copyright (C) 2012 Advanced Micro Devices, Inc.
+ * Author: Joerg Roedel <joerg.roedel@amd.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ *
+ * This header file contains the interface of the interrupt remapping code to
+ * the x86 interrupt management code.
+ */
+
+#ifndef __X86_IRQ_REMAPPING_H
+#define __X86_IRQ_REMAPPING_H
+
+#ifdef CONFIG_IRQ_REMAP
+
+struct IO_APIC_route_entry;
+struct io_apic_irq_attr;
+struct pci_dev;
+
+extern int irq_remapping_enabled;
+
+extern void setup_irq_remapping_ops(void);
+extern int irq_remapping_supported(void);
+extern int irq_remapping_prepare(void);
+extern int irq_remapping_enable(void);
+extern void irq_remapping_disable(void);
+extern int irq_remapping_reenable(int);
+extern int irq_remap_enable_fault_handling(void);
+extern int setup_ioapic_remapped_entry(int irq,
+				       struct IO_APIC_route_entry *entry,
+				       unsigned int destination,
+				       int vector,
+				       struct io_apic_irq_attr *attr);
+extern int set_remapped_irq_affinity(struct irq_data *data,
+				     const struct cpumask *mask,
+				     bool force);
+extern void free_remapped_irq(int irq);
+extern void compose_remapped_msi_msg(struct pci_dev *pdev,
+				     unsigned int irq, unsigned int dest,
+				     struct msi_msg *msg, u8 hpet_id);
+extern int msi_alloc_remapped_irq(struct pci_dev *pdev, int irq, int nvec);
+extern int msi_setup_remapped_irq(struct pci_dev *pdev, unsigned int irq,
+				  int index, int sub_handle);
+extern int setup_hpet_msi_remapped(unsigned int irq, unsigned int id);
+
+#else  /* CONFIG_IRQ_REMAP */
+
+#define irq_remapping_enabled	0
+
+static inline void setup_irq_remapping_ops(void) { }
+static inline int irq_remapping_supported(void) { return 0; }
+static inline int irq_remapping_prepare(void) { return -ENODEV; }
+static inline int irq_remapping_enable(void) { return -ENODEV; }
+static inline void irq_remapping_disable(void) { }
+static inline int irq_remapping_reenable(int eim) { return -ENODEV; }
+static inline int irq_remap_enable_fault_handling(void) { return -ENODEV; }
+static inline int setup_ioapic_remapped_entry(int irq,
+					      struct IO_APIC_route_entry *entry,
+					      unsigned int destination,
+					      int vector,
+					      struct io_apic_irq_attr *attr)
+{
+	return -ENODEV;
+}
+static inline int set_remapped_irq_affinity(struct irq_data *data,
+					    const struct cpumask *mask,
+					    bool force)
+{
+	return 0;
+}
+static inline void free_remapped_irq(int irq) { }
+static inline void compose_remapped_msi_msg(struct pci_dev *pdev,
+					    unsigned int irq, unsigned int dest,
+					    struct msi_msg *msg, u8 hpet_id)
+{
+}
+static inline int msi_alloc_remapped_irq(struct pci_dev *pdev, int irq, int nvec)
+{
+	return -ENODEV;
+}
+static inline int msi_setup_remapped_irq(struct pci_dev *pdev, unsigned int irq,
+					 int index, int sub_handle)
+{
+	return -ENODEV;
+}
+static inline int setup_hpet_msi_remapped(unsigned int irq, unsigned int id)
+{
+	return -ENODEV;
+}
+#endif /* CONFIG_IRQ_REMAP */
+
+#endif /* __X86_IRQ_REMAPPING_H */