1 /*
2 * Copyright (c) 2001, 2008, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 // Inline functions of BarrierSet, which de-virtualize certain
26 // performance-critical calls when the barrier is the most common
27 // card-table kind.
28
29 template <class T> void BarrierSet::write_ref_field_pre(T* field, oop new_val) {
30 if (kind() == CardTableModRef) {
31 ((CardTableModRefBS*)this)->inline_write_ref_field_pre(field, new_val);
32 } else {
33 write_ref_field_pre_work(field, new_val);
34 }
35 }
36
37 void BarrierSet::write_ref_field(void* field, oop new_val) {
38 if (kind() == CardTableModRef) {
39 ((CardTableModRefBS*)this)->inline_write_ref_field(field, new_val);
40 } else {
41 write_ref_field_work(field, new_val);
42 }
43 }
44
60 HeapWord* aligned_start = (HeapWord*)align_size_down((uintptr_t)start, HeapWordSize);
61 HeapWord* aligned_end = (HeapWord*)align_size_up ((uintptr_t)end, HeapWordSize);
62 // If compressed oops were not being used, these should already be aligned
63 assert(UseCompressedOops || (aligned_start == start && aligned_end == end),
64 "Expected heap word alignment of start and end");
65 #if 0
66 warning("Post:\t" INTPTR_FORMAT "[" SIZE_FORMAT "] : [" INTPTR_FORMAT","INTPTR_FORMAT")\t",
67 start, count, aligned_start, aligned_end);
68 #endif
69 write_ref_array_work(MemRegion(aligned_start, aligned_end));
70 }
71
72
73 void BarrierSet::write_region(MemRegion mr) {
74 if (kind() == CardTableModRef) {
75 ((CardTableModRefBS*)this)->inline_write_region(mr);
76 } else {
77 write_region_work(mr);
78 }
79 }
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1 /*
2 * Copyright (c) 2001, 2010, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #ifndef SHARE_VM_MEMORY_BARRIERSET_INLINE_HPP
26 #define SHARE_VM_MEMORY_BARRIERSET_INLINE_HPP
27
28 #include "memory/barrierSet.hpp"
29 #include "memory/cardTableModRefBS.hpp"
30
31 // Inline functions of BarrierSet, which de-virtualize certain
32 // performance-critical calls when the barrier is the most common
33 // card-table kind.
34
35 template <class T> void BarrierSet::write_ref_field_pre(T* field, oop new_val) {
36 if (kind() == CardTableModRef) {
37 ((CardTableModRefBS*)this)->inline_write_ref_field_pre(field, new_val);
38 } else {
39 write_ref_field_pre_work(field, new_val);
40 }
41 }
42
43 void BarrierSet::write_ref_field(void* field, oop new_val) {
44 if (kind() == CardTableModRef) {
45 ((CardTableModRefBS*)this)->inline_write_ref_field(field, new_val);
46 } else {
47 write_ref_field_work(field, new_val);
48 }
49 }
50
66 HeapWord* aligned_start = (HeapWord*)align_size_down((uintptr_t)start, HeapWordSize);
67 HeapWord* aligned_end = (HeapWord*)align_size_up ((uintptr_t)end, HeapWordSize);
68 // If compressed oops were not being used, these should already be aligned
69 assert(UseCompressedOops || (aligned_start == start && aligned_end == end),
70 "Expected heap word alignment of start and end");
71 #if 0
72 warning("Post:\t" INTPTR_FORMAT "[" SIZE_FORMAT "] : [" INTPTR_FORMAT","INTPTR_FORMAT")\t",
73 start, count, aligned_start, aligned_end);
74 #endif
75 write_ref_array_work(MemRegion(aligned_start, aligned_end));
76 }
77
78
79 void BarrierSet::write_region(MemRegion mr) {
80 if (kind() == CardTableModRef) {
81 ((CardTableModRefBS*)this)->inline_write_region(mr);
82 } else {
83 write_region_work(mr);
84 }
85 }
86
87 #endif // SHARE_VM_MEMORY_BARRIERSET_INLINE_HPP
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