forked from Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
33 lines
899 B
33 lines
899 B
/* 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_NO_ORDER USHRT_MAX |
|
|
|
struct hyp_pool { |
|
/* |
|
* Spinlock protecting concurrent changes to the memory pool as well as |
|
* the struct hyp_page of the pool's pages until we have a proper atomic |
|
* API at EL2. |
|
*/ |
|
hyp_spinlock_t lock; |
|
struct list_head free_area[MAX_ORDER]; |
|
phys_addr_t range_start; |
|
phys_addr_t range_end; |
|
unsigned short max_order; |
|
}; |
|
|
|
/* Allocation */ |
|
void *hyp_alloc_pages(struct hyp_pool *pool, unsigned short order); |
|
void hyp_get_page(struct hyp_pool *pool, void *addr); |
|
void hyp_put_page(struct hyp_pool *pool, void *addr); |
|
|
|
/* Used pages cannot be freed */ |
|
int hyp_pool_init(struct hyp_pool *pool, u64 pfn, unsigned int nr_pages, |
|
unsigned int reserved_pages); |
|
#endif /* __KVM_HYP_GFP_H */
|
|
|