1 // SPDX-License-Identifier: GPL-2.0
2 // Copyright(c) 2018 Intel Corporation. All rights reserved.
5 #include <linux/jump_label.h>
8 * SHUFFLE_ENABLE is called from the command line enabling path, or by
9 * platform-firmware enabling that indicates the presence of a
10 * direct-mapped memory-side-cache. SHUFFLE_FORCE_DISABLE is called from
11 * the command line path and overrides any previous or future
16 SHUFFLE_FORCE_DISABLE,
19 #define SHUFFLE_ORDER (MAX_ORDER-1)
21 #ifdef CONFIG_SHUFFLE_PAGE_ALLOCATOR
22 DECLARE_STATIC_KEY_FALSE(page_alloc_shuffle_key);
23 extern void page_alloc_shuffle(enum mm_shuffle_ctl ctl);
24 extern void __shuffle_free_memory(pg_data_t *pgdat);
25 static inline void shuffle_free_memory(pg_data_t *pgdat)
27 if (!static_branch_unlikely(&page_alloc_shuffle_key))
29 __shuffle_free_memory(pgdat);
32 extern void __shuffle_zone(struct zone *z);
33 static inline void shuffle_zone(struct zone *z)
35 if (!static_branch_unlikely(&page_alloc_shuffle_key))
40 static inline bool is_shuffle_order(int order)
42 if (!static_branch_unlikely(&page_alloc_shuffle_key))
44 return order >= SHUFFLE_ORDER;
47 static inline void shuffle_free_memory(pg_data_t *pgdat)
51 static inline void shuffle_zone(struct zone *z)
55 static inline void page_alloc_shuffle(enum mm_shuffle_ctl ctl)
59 static inline bool is_shuffle_order(int order)
64 #endif /* _MM_SHUFFLE_H */