| /* SPDX-License-Identifier: GPL-2.0-only */ |
| #ifndef _POWERPC_SYSDEV_MSI_BITMAP_H |
| #define _POWERPC_SYSDEV_MSI_BITMAP_H |
| |
| /* |
| * Copyright 2008, Michael Ellerman, IBM Corporation. |
| */ |
| |
| #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 */ |
