1 /*
2 * Copyright (c) 1998, 2007, 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 // Processor dependent parts of ThreadLocalStorage
26
27 private:
28 static Thread* _get_thread_cache[]; // index by [(raw_id>>9)^(raw_id>>20) % _pd_cache_size]
29 static Thread* get_thread_via_cache_slowly(uintptr_t raw_id, int index);
30
31 NOT_PRODUCT(static int _tcacheHit;)
32 NOT_PRODUCT(static int _tcacheMiss;)
33
34 public:
35 // Cache hit/miss statistics
36 static void print_statistics() PRODUCT_RETURN;
37
38 enum Constants {
39 #ifdef AMD64
40 _pd_cache_size = 256*2 // projected typical # of threads * 2
41 #else
42 _pd_cache_size = 128*2 // projected typical # of threads * 2
43 #endif // AMD64
44 };
61 uintptr_t rv;
62 __asm__ __volatile__ ("movq %%fs:0, %0" : "=r"(rv));
63 return rv;
64 #else
65 return gs_thread();
66 #endif // AMD64
67 #else //_GNU_SOURCE
68 return _raw_thread_id();
69 #endif //_GNU_SOURCE
70 }
71
72 static int pd_cache_index(uintptr_t raw_id) {
73 // Copied from the sparc version. Dave said it should also work fine
74 // for solx86.
75 int ix = (int) (((raw_id >> 9) ^ (raw_id >> 20)) % _pd_cache_size);
76 return ix;
77 }
78
79 // Java Thread
80 static inline Thread* thread();
|
1 /*
2 * Copyright (c) 1998, 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 OS_CPU_SOLARIS_X86_VM_THREADLS_SOLARIS_X86_HPP
26 #define OS_CPU_SOLARIS_X86_VM_THREADLS_SOLARIS_X86_HPP
27
28 // Processor dependent parts of ThreadLocalStorage
29
30 private:
31 static Thread* _get_thread_cache[]; // index by [(raw_id>>9)^(raw_id>>20) % _pd_cache_size]
32 static Thread* get_thread_via_cache_slowly(uintptr_t raw_id, int index);
33
34 NOT_PRODUCT(static int _tcacheHit;)
35 NOT_PRODUCT(static int _tcacheMiss;)
36
37 public:
38 // Cache hit/miss statistics
39 static void print_statistics() PRODUCT_RETURN;
40
41 enum Constants {
42 #ifdef AMD64
43 _pd_cache_size = 256*2 // projected typical # of threads * 2
44 #else
45 _pd_cache_size = 128*2 // projected typical # of threads * 2
46 #endif // AMD64
47 };
64 uintptr_t rv;
65 __asm__ __volatile__ ("movq %%fs:0, %0" : "=r"(rv));
66 return rv;
67 #else
68 return gs_thread();
69 #endif // AMD64
70 #else //_GNU_SOURCE
71 return _raw_thread_id();
72 #endif //_GNU_SOURCE
73 }
74
75 static int pd_cache_index(uintptr_t raw_id) {
76 // Copied from the sparc version. Dave said it should also work fine
77 // for solx86.
78 int ix = (int) (((raw_id >> 9) ^ (raw_id >> 20)) % _pd_cache_size);
79 return ix;
80 }
81
82 // Java Thread
83 static inline Thread* thread();
84
85 #endif // OS_CPU_SOLARIS_X86_VM_THREADLS_SOLARIS_X86_HPP
|