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| /* SPDX-License-Identifier: GPL-2.0-only */
#ifndef __KVM_HYP_GFP_H
#define __KVM_HYP_GFP_H
#include <linux/list.h>
#include <nvhe/memory.h>
#include <nvhe/spinlock.h>
#define HYP_MAX_ORDER 11U
#define HYP_NO_ORDER UINT_MAX
struct hyp_pool {
hyp_spinlock_t lock;
struct list_head free_area[HYP_MAX_ORDER + 1];
phys_addr_t range_start;
phys_addr_t range_end;
};
/* GFP flags */
#define HYP_GFP_NONE 0
#define HYP_GFP_ZERO 1
/* Allocation */
void *hyp_alloc_pages(struct hyp_pool *pool, gfp_t mask, unsigned int order);
void hyp_get_page(void *addr);
void hyp_put_page(void *addr);
/* Used pages cannot be freed */
int hyp_pool_init(struct hyp_pool *pool, phys_addr_t phys,
unsigned int nr_pages, unsigned int used_pages);
#endif /* __KVM_HYP_GFP_H */
|