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mm/cma.h
671 Bytes
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/* SPDX-License-Identifier: GPL-2.0 */ |
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#ifndef __MM_CMA_H__ #define __MM_CMA_H__ |
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#include <linux/debugfs.h> |
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#define CMA_MAX_NAME 64 |
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struct cma { unsigned long base_pfn; unsigned long count; unsigned long *bitmap; unsigned int order_per_bit; /* Order of pages represented by one bit */ struct mutex lock; |
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#ifdef CONFIG_CMA_DEBUGFS struct hlist_head mem_head; spinlock_t mem_head_lock; |
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struct debugfs_u32_array dfs_bitmap; |
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#endif |
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char name[CMA_MAX_NAME]; |
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}; extern struct cma cma_areas[MAX_CMA_AREAS]; extern unsigned cma_area_count; |
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static inline unsigned long cma_bitmap_maxno(struct cma *cma) |
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{ return cma->count >> cma->order_per_bit; } #endif |