mirror of
https://github.com/hardkernel/kernel_common_drivers.git
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Jianxiong Pan
4faea8d07f
PD#SWPL-229258 Problem: some scenarios hope to dynamically modify the cma task priority. Solution: provide interface to set cma task priority. Verify: local. Change-Id: I72ad141f3535a9173f622ff73c79c96440aa76da Signed-off-by: Jianxiong Pan <jianxiong.pan@amlogic.com>
96 lines
2.9 KiB
C
96 lines
2.9 KiB
C
/* SPDX-License-Identifier: (GPL-2.0+ OR MIT) */
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/*
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* Copyright (c) 2019 Amlogic, Inc. All rights reserved.
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*/
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#ifndef __AMLOGIC_CMA_H__
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#define __AMLOGIC_CMA_H__
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#ifdef CONFIG_AMLOGIC_CMA
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#define GFP_NO_CMA (__GFP_NO_CMA | __GFP_WRITE)
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int can_write_use_cma(void);
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static inline bool cma_forbidden_mask(gfp_t gfp_flags)
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{
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if (can_write_use_cma()) {
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if ((gfp_flags & __GFP_NO_CMA) || !(gfp_flags & __GFP_MOVABLE))
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return true;
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return false;
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}
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if ((gfp_flags & GFP_NO_CMA) || !(gfp_flags & __GFP_MOVABLE))
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return true;
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return false;
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}
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#else
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#define __GFP_NO_CMA (__GFP_CMA | 1)
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#endif
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/* the highest bit of total_migrate_scanned in struct compact_control */
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#define FORBID_TO_CMA_BIT 63
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#ifdef CONFIG_AMLOGIC_CMA_DIS
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extern unsigned long ion_cma_allocated;
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#endif
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extern int cma_debug_level;
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void cma_page_count_update(long size);
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void aml_cma_alloc_pre_hook(int *dummy, int count, unsigned long *tick);
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void aml_cma_alloc_post_hook(int *dummy, int count, struct page *page,
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unsigned long tick, int ret);
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struct page *get_cma_page(struct zone *zone, unsigned int order);
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unsigned long compact_to_free_cma(struct zone *zone);
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bool can_use_cma(gfp_t gfp_flags);
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bool cma_page(struct page *page);
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unsigned long get_cma_allocated(void);
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unsigned long get_total_cmapages(void);
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int aml_cma_alloc_range(unsigned long start, unsigned long end,
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unsigned int migrate_type, gfp_t gfp_mask);
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void check_cma_isolated(unsigned long *isolate,
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unsigned long active, unsigned long inactive);
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void cma_keep_high_active(struct folio *folio, struct list_head *high,
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struct list_head *clean);
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void update_gfp_flags(gfp_t *gfp);
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void check_water_mark(long free_pages, unsigned long mark);
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struct compact_control;
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void check_page_to_cma(struct compact_control *cc,
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struct address_space *mapping,
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struct folio *folio);
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struct folio *get_compact_page(struct folio *src,
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struct compact_control *cc);
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void aml_cma_free(unsigned long pfn, unsigned int nr_pages, int update);
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void show_page(struct page *page);
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int set_cma_task_priority_level(int level);
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struct page *compaction_cma_alloc(struct page *migratepage,
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unsigned long data,
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int **result);
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/* for cma area serror */
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int cma_mmu_op(struct page *page, int count, bool set);
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int setup_cma_full_pagemap(unsigned long pfn, unsigned long count);
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#if IS_BUILTIN(CONFIG_AMLOGIC_CMA)
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void split_free_pages(struct list_head *list);
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bool check_new_pages(struct page *page, unsigned int order);
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void prep_new_page(struct page *page, unsigned int order, gfp_t gfp_flags,
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unsigned int alloc_flags);
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#endif
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/* check page in cma allocating process */
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int in_cma_allocating(struct page *page);
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#define cma_debug(l, p, format, args...) \
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{ \
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if ((l) < cma_debug_level) { \
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show_page(p); \
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pr_info("%s,%d " format, __func__, __LINE__, ##args); \
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} \
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}
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#endif /* __AMLOGIC_CMA_H__ */
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