| | 1 | /* |
| | 2 | * Copyright (c) 2000-2010 Apple Inc. All rights reserved. |
| | 3 | * |
| | 4 | * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ |
| | 5 | * |
| | 6 | * This file contains Original Code and/or Modifications of Original Code |
| | 7 | * as defined in and that are subject to the Apple Public Source License |
| | 8 | * Version 2.0 (the 'License'). You may not use this file except in |
| | 9 | * compliance with the License. The rights granted to you under the License |
| | 10 | * may not be used to create, or enable the creation or redistribution of, |
| | 11 | * unlawful or unlicensed copies of an Apple operating system, or to |
| | 12 | * circumvent, violate, or enable the circumvention or violation of, any |
| | 13 | * terms of an Apple operating system software license agreement. |
| | 14 | * |
| | 15 | * Please obtain a copy of the License at |
| | 16 | * http://www.opensource.apple.com/apsl/ and read it before using this file. |
| | 17 | * |
| | 18 | * The Original Code and all software distributed under the License are |
| | 19 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER |
| | 20 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, |
| | 21 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, |
| | 22 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. |
| | 23 | * Please see the License for the specific language governing rights and |
| | 24 | * limitations under the License. |
| | 25 | * |
| | 26 | * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ |
| | 27 | */ |
| | 28 | |
| | 29 | #ifndef _PMAP_PCID_ |
| | 30 | #define _PMAP_PCID_ 1 |
| | 31 | #if defined(__x86_64__) |
| | 32 | void pmap_pcid_initialize(pmap_t); |
| | 33 | void pmap_pcid_initialize_kernel(pmap_t); |
| | 34 | pcid_t pmap_pcid_allocate_pcid(int); |
| | 35 | void pmap_pcid_deallocate_pcid(int, pmap_t); |
| | 36 | void pmap_destroy_pcid_sync_action(void *); |
| | 37 | void pmap_destroy_pcid_sync(pmap_t); |
| | 38 | void pmap_pcid_lazy_flush(pmap_t); |
| | 39 | void pmap_pcid_activate(pmap_t, int, boolean_t, boolean_t); |
| | 40 | pcid_t pcid_for_pmap_cpu_tuple(pmap_t, thread_t, int); |
| | 41 | |
| | 42 | #define PMAP_INVALID ((pmap_t)0xDEAD7347) |
| | 43 | #define PMAP_PCID_INVALID_PCID (0xDEAD) |
| | 44 | #define PMAP_PCID_MAX_REFCOUNT (0xF0) |
| | 45 | #define PMAP_PCID_MIN_PCID (1) |
| | 46 | |
| | 47 | extern uint32_t pmap_pcid_ncpus; |
| | 48 | |
| | 49 | static inline void |
| | 50 | pmap_pcid_invalidate_all_cpus(pmap_t tpmap) |
| | 51 | { |
| | 52 | unsigned i; |
| | 53 | |
| | 54 | pmap_assert((sizeof(tpmap->pmap_pcid_coherency_vector) >= real_ncpus) && (!(sizeof(tpmap->pmap_pcid_coherency_vector) & 7))); |
| | 55 | |
| | 56 | for (i = 0; i < real_ncpus; i += 8) { |
| | 57 | *(uint64_t *)(uintptr_t)&tpmap->pmap_pcid_coherency_vector[i] = (~0ULL); |
| | 58 | } |
| | 59 | } |
| | 60 | |
| | 61 | static inline void |
| | 62 | pmap_pcid_validate_current(void) |
| | 63 | { |
| | 64 | int ccpu = cpu_number(); |
| | 65 | volatile uint8_t *cptr = cpu_datap(ccpu)->cpu_pmap_pcid_coherentp; |
| | 66 | #ifdef PMAP_MODULE |
| | 67 | pmap_assert(cptr == &(current_thread()->map->pmap->pmap_pcid_coherency_vector[ccpu])); |
| | 68 | #endif |
| | 69 | if (cptr) { |
| | 70 | *cptr = 0; |
| | 71 | } |
| | 72 | } |
| | 73 | |
| | 74 | static inline void |
| | 75 | pmap_pcid_invalidate_cpu(pmap_t tpmap, int ccpu) |
| | 76 | { |
| | 77 | tpmap->pmap_pcid_coherency_vector[ccpu] = 0xFF; |
| | 78 | } |
| | 79 | |
| | 80 | static inline void |
| | 81 | pmap_pcid_validate_cpu(pmap_t tpmap, int ccpu) |
| | 82 | { |
| | 83 | tpmap->pmap_pcid_coherency_vector[ccpu] = 0; |
| | 84 | } |
| | 85 | #endif /* x86_64 */ |
| | 86 | #endif |
projects / apple / xnu.git / blame_incremental