cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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percpu_freelist.h (1083B)

      1/* SPDX-License-Identifier: GPL-2.0-only */
      2/* Copyright (c) 2016 Facebook
      3 */
      4#ifndef __PERCPU_FREELIST_H__
      5#define __PERCPU_FREELIST_H__
      6#include <linux/spinlock.h>
      7#include <linux/percpu.h>
      8
      9struct pcpu_freelist_head {
     10	struct pcpu_freelist_node *first;
     11	raw_spinlock_t lock;
     12};
     13
     14struct pcpu_freelist {
     15	struct pcpu_freelist_head __percpu *freelist;
     16	struct pcpu_freelist_head extralist;
     17};
     18
     19struct pcpu_freelist_node {
     20	struct pcpu_freelist_node *next;
     21};
     22
     23/* pcpu_freelist_* do spin_lock_irqsave. */
     24void pcpu_freelist_push(struct pcpu_freelist *, struct pcpu_freelist_node *);
     25struct pcpu_freelist_node *pcpu_freelist_pop(struct pcpu_freelist *);
     26/* __pcpu_freelist_* do spin_lock only. caller must disable irqs. */
     27void __pcpu_freelist_push(struct pcpu_freelist *, struct pcpu_freelist_node *);
     28struct pcpu_freelist_node *__pcpu_freelist_pop(struct pcpu_freelist *);
     29void pcpu_freelist_populate(struct pcpu_freelist *s, void *buf, u32 elem_size,
     30			    u32 nr_elems);
     31int pcpu_freelist_init(struct pcpu_freelist *);
     32void pcpu_freelist_destroy(struct pcpu_freelist *s);
     33#endif