61 lines
1.7 KiB
C
61 lines
1.7 KiB
C
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/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (c) 2019 MediaTek Inc.
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*/
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#ifndef __MTK_MEMINFO_H__
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#define __MTK_MEMINFO_H__
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#include <linux/cma.h>
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#include <linux/of_reserved_mem.h>
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extern void *vmap_reserved_mem(phys_addr_t start, phys_addr_t size,
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pgprot_t prot);
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#ifdef CONFIG_MTK_MEMORY_LOWPOWER
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extern phys_addr_t memory_lowpower_base(void);
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extern phys_addr_t memory_lowpower_size(void);
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extern struct single_cma_registration memory_lowpower_registration;
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#endif /* end CONFIG_MTK_MEMORY_LOWPOWER */
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#ifdef CONFIG_ZONE_MOVABLE_CMA
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extern phys_addr_t zmc_max_zone_dma_phys;
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#define ZMC_ALLOC_ALL 0x01 /* allocate all memory reserved from dts */
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/* Priority of ZONE_MOVABLE_CMA users */
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enum zmc_prio {
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ZMC_SSMR,
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ZMC_CHECK_MEM_STAT,
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ZMC_MLP = ZMC_CHECK_MEM_STAT,
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NR_ZMC_OWNER,
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};
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struct single_cma_registration {
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phys_addr_t size;
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phys_addr_t align;
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unsigned long flag;
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const char *name;
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int (*preinit)(struct reserved_mem *rmem);
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void (*init)(struct cma *cma);
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enum zmc_prio prio;
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};
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extern bool is_zmc_inited(void);
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extern void zmc_get_range(phys_addr_t *base, phys_addr_t *size);
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extern phys_addr_t zmc_base(void);
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extern struct page *zmc_cma_alloc(struct cma *cma, int count,
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unsigned int align, struct single_cma_registration *p);
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extern bool zmc_cma_release(struct cma *cma, struct page *pages, int count);
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extern int zmc_register_client(struct notifier_block *nb);
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extern int zmc_unregister_client(struct notifier_block *nb);
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extern int zmc_notifier_call_chain(unsigned long val, void *v);
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#define ZMC_EVENT_ALLOC_MOVABLE 0x01
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#endif
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#ifdef CONFIG_MTK_SSMR
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extern bool memory_ssmr_inited(void);
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extern struct single_cma_registration memory_ssmr_registration;
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#endif /* end CONFIG_MTK_SSMR */
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#endif /* end __MTK_MEMINFO_H__ */
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