#ifndef _POWERPC_SYSDEV_MSI_BITMAP_H #define _POWERPC_SYSDEV_MSI_BITMAP_H /* * Copyright 2008, Michael Ellerman, IBM Corporation. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; version 2 of the * License. * */ #include <linux/of.h> #include <asm/irq.h> struct msi_bitmap { struct device_node *of_node; unsigned long *bitmap; spinlock_t lock; unsigned int irq_count; bool bitmap_from_slab; }; int msi_bitmap_alloc_hwirqs(struct msi_bitmap *bmp, int num); void msi_bitmap_free_hwirqs(struct msi_bitmap *bmp, unsigned int offset, unsigned int num); void msi_bitmap_reserve_hwirq(struct msi_bitmap *bmp, unsigned int hwirq); int msi_bitmap_reserve_dt_hwirqs(struct msi_bitmap *bmp); int msi_bitmap_alloc(struct msi_bitmap *bmp, unsigned int irq_count, struct device_node *of_node); void msi_bitmap_free(struct msi_bitmap *bmp); #endif /* _POWERPC_SYSDEV_MSI_BITMAP_H */