/*
* Copyright (c) 2000-2010 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
* This file contains Original Code and/or Modifications of Original Code
* as defined in and that are subject to the Apple Public Source License
* Version 2.0 (the 'License'). You may not use this file except in
* compliance with the License. The rights granted to you under the License
* may not be used to create, or enable the creation or redistribution of,
* unlawful or unlicensed copies of an Apple operating system, or to
* circumvent, violate, or enable the circumvention or violation of, any
* terms of an Apple operating system software license agreement.
*
* Please obtain a copy of the License at
* http://www.opensource.apple.com/apsl/ and read it before using this file.
*
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
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*/
#ifndef _PMAP_PCID_
#define _PMAP_PCID_ 1
#if defined(__x86_64__)
void pmap_pcid_initialize(pmap_t);
void pmap_pcid_initialize_kernel(pmap_t);
pcid_t pmap_pcid_allocate_pcid(int);
void pmap_pcid_deallocate_pcid(int, pmap_t);
void pmap_destroy_pcid_sync_action(void *);
void pmap_destroy_pcid_sync(pmap_t);
void pmap_pcid_lazy_flush(pmap_t);
void pmap_pcid_activate(pmap_t, int, boolean_t, boolean_t);
pcid_t pcid_for_pmap_cpu_tuple(pmap_t, thread_t, int);
#define PMAP_INVALID ((pmap_t)0xDEAD7347)
#define PMAP_PCID_INVALID_PCID (0xDEAD)
#define PMAP_PCID_MAX_REFCOUNT (0xF0)
#define PMAP_PCID_MIN_PCID (1)
extern uint32_t pmap_pcid_ncpus;
static inline void
pmap_pcid_invalidate_all_cpus(pmap_t tpmap)
{
unsigned i;
pmap_assert((sizeof(tpmap->pmap_pcid_coherency_vector) >= real_ncpus) && (!(sizeof(tpmap->pmap_pcid_coherency_vector) & 7)));
for (i = 0; i < real_ncpus; i += 8) {
*(uint64_t *)(uintptr_t)&tpmap->pmap_pcid_coherency_vector[i] = (~0ULL);
}
}
static inline void
pmap_pcid_validate_current(void)
{
int ccpu = cpu_number();
volatile uint8_t *cptr = cpu_datap(ccpu)->cpu_pmap_pcid_coherentp;
#ifdef PMAP_MODULE
pmap_assert(cptr == &(current_thread()->map->pmap->pmap_pcid_coherency_vector[ccpu]));
#endif
if (cptr) {
*cptr = 0;
}
}
static inline void
pmap_pcid_invalidate_cpu(pmap_t tpmap, int ccpu)
{
tpmap->pmap_pcid_coherency_vector[ccpu] = 0xFF;
}
static inline void
pmap_pcid_validate_cpu(pmap_t tpmap, int ccpu)
{
tpmap->pmap_pcid_coherency_vector[ccpu] = 0;
}
#endif /* x86_64 */
#endif