--- xnu/xnu-12377.121.6/pexpert/arm/pe_consistent_debug.c
+++ /dev/null
@@ -1,112 +0,0 @@
-/*
- * Copyright (c) 2011-2018 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,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- * Please see the License for the specific language governing rights and
- * limitations under the License.
- *
- * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
- */
-
-#include <pexpert/pexpert.h>
-#include <pexpert/arm/consistent_debug.h>
-#include <pexpert/device_tree.h>
-#include <libkern/OSAtomic.h>
-#include <machine/machine_routines.h>
-
-static dbg_registry_t * consistent_debug_registry = NULL;
-
-static dbg_record_header_t*
-consistent_debug_allocate_entry(void)
-{
-	unsigned int i;
-
-	if (!consistent_debug_registry) {
-		return NULL;
-	}
-	for (i = 0; i < consistent_debug_registry->top_level_header.num_records; i++) {
-		dbg_record_header_t *record = &consistent_debug_registry->records[i];
-		if (OSCompareAndSwap64(kDbgIdUnusedEntry, kDbgIdReservedEntry, &record->record_id)) {
-			// Reserved an entry at position i.
-			return (dbg_record_header_t*)record;
-		}
-	}
-	return NULL;
-}
-
-boolean_t
-PE_consistent_debug_lookup_entry(uint64_t record_id, uint64_t *phys_addr, uint64_t *length)
-{
-	assert(phys_addr != NULL);
-	assert(length != NULL);
-
-	for (unsigned int i = 0; i < consistent_debug_registry->top_level_header.num_records; i++) {
-		if (consistent_debug_registry->records[i].record_id == record_id) {
-			*phys_addr = consistent_debug_registry->records[i].physaddr;
-			*length = consistent_debug_registry->records[i].length;
-
-			return true;
-		}
-	}
-
-	return false;
-}
-
-int
-PE_consistent_debug_inherit(void)
-{
-	DTEntry         entryP;
-	uintptr_t const *prop_data;
-	uintptr_t       root_pointer = 0;
-	uint32_t        size;
-
-	if ((SecureDTLookupEntry(NULL, "/chosen", &entryP) == kSuccess)) {
-		if (SecureDTGetProperty(entryP, "consistent-debug-root", (void const **)&prop_data, &size) == kSuccess) {
-			root_pointer = prop_data[0];
-		}
-	}
-	if (root_pointer == 0) {
-		return -1;
-	}
-	consistent_debug_registry = (dbg_registry_t *)ml_map_high_window(root_pointer, sizeof(dbg_registry_t));
-	return 0;
-}
-
-int
-PE_consistent_debug_register(uint64_t record_id, uint64_t physaddr, uint64_t length)
-{
-	dbg_record_header_t *allocated_header = consistent_debug_allocate_entry();
-	if (allocated_header == NULL) {
-		return -1;
-	}
-	allocated_header->length = length;
-	allocated_header->physaddr = physaddr;
-	// Make sure the hdr/length are visible before the record_id.
-	__asm__ volatile ("dmb ish" : : : "memory");
-	allocated_header->record_id = record_id;
-	return 0;
-}
-
-int
-PE_consistent_debug_enabled(void)
-{
-	return consistent_debug_registry != NULL;
-}