| 12345678910111213141516171819202122232425262728293031 |
- /* 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 */
|
