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31 lines
867 B
31 lines
867 B
/* SPDX-License-Identifier: GPL-2.0-only */ |
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#ifndef _POWERPC_SYSDEV_MSI_BITMAP_H |
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#define _POWERPC_SYSDEV_MSI_BITMAP_H |
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/* |
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* Copyright 2008, Michael Ellerman, IBM Corporation. |
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*/ |
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#include <linux/of.h> |
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#include <asm/irq.h> |
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struct msi_bitmap { |
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struct device_node *of_node; |
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unsigned long *bitmap; |
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spinlock_t lock; |
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unsigned int irq_count; |
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bool bitmap_from_slab; |
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}; |
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int msi_bitmap_alloc_hwirqs(struct msi_bitmap *bmp, int num); |
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void msi_bitmap_free_hwirqs(struct msi_bitmap *bmp, unsigned int offset, |
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unsigned int num); |
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void msi_bitmap_reserve_hwirq(struct msi_bitmap *bmp, unsigned int hwirq); |
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int msi_bitmap_reserve_dt_hwirqs(struct msi_bitmap *bmp); |
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int msi_bitmap_alloc(struct msi_bitmap *bmp, unsigned int irq_count, |
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struct device_node *of_node); |
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void msi_bitmap_free(struct msi_bitmap *bmp); |
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#endif /* _POWERPC_SYSDEV_MSI_BITMAP_H */
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