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| 2 | #ifndef _POWERPC_SYSDEV_MSI_BITMAP_H
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| 3 | #define _POWERPC_SYSDEV_MSI_BITMAP_H
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| 4 |
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| 5 | |
| 6 | * Copyright 2008, Michael Ellerman, IBM Corporation.
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| 7 |
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| 8 |
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| 9 | #include <linux/of.h>
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| 10 | #include <asm/irq.h>
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| 11 |
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| 12 | struct msi_bitmap {
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| 13 | struct device_node *of_node;
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| 14 | unsigned long *bitmap;
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| 15 | spinlock_t lock;
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| 16 | unsigned int irq_count;
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| 17 | bool bitmap_from_slab;
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| 18 | };
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| 19 |
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| 20 | int msi_bitmap_alloc_hwirqs(struct msi_bitmap *bmp, int num);
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| 21 | void msi_bitmap_free_hwirqs(struct msi_bitmap *bmp, unsigned int offset,
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| 22 | unsigned int num);
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| 23 | void msi_bitmap_reserve_hwirq(struct msi_bitmap *bmp, unsigned int hwirq);
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| 24 |
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| 25 | int msi_bitmap_reserve_dt_hwirqs(struct msi_bitmap *bmp);
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| 26 |
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| 27 | int msi_bitmap_alloc(struct msi_bitmap *bmp, unsigned int irq_count,
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| 28 | struct device_node *of_node);
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| 29 | void msi_bitmap_free(struct msi_bitmap *bmp);
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| 30 |
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| 31 | #endif
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