1 #ifdef USE_PRAGMA_IDENT_HDR
2 #pragma ident "@(#)vm_version_sparc.hpp 1.33 07/10/04 10:49:21 JVM"
3 #endif
4 /*
5 * Copyright 1997-2007 Sun Microsystems, Inc. All Rights Reserved.
6 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
7 *
8 * This code is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License version 2 only, as
10 * published by the Free Software Foundation.
11 *
12 * This code is distributed in the hope that it will be useful, but WITHOUT
13 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
15 * version 2 for more details (a copy is included in the LICENSE file that
16 * accompanied this code).
17 *
18 * You should have received a copy of the GNU General Public License version
19 * 2 along with this work; if not, write to the Free Software Foundation,
20 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
21 *
22 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
23 * CA 95054 USA or visit www.sun.com if you need additional information or
24 * have any questions.
25 *
50 sun4v_m = 1 << sun4v_instructions,
51
52 generic_v8_m = v8_instructions_m | hardware_int_muldiv_m | hardware_fsmuld_m,
53 generic_v9_m = generic_v8_m | v9_instructions_m | vis1_instructions_m,
54 ultra3_m = generic_v9_m | vis2_instructions_m,
55
56 // Temporary until we have something more accurate
57 niagara1_unique_m = sun4v_m,
58 niagara1_m = generic_v9_m | niagara1_unique_m
59 };
60
61 static int _features;
62 static const char* _features_str;
63
64 static void print_features();
65 static int determine_features();
66 static int platform_features(int features);
67
68 static bool is_niagara1(int features) { return (features & niagara1_m) == niagara1_m; }
69
70 public:
71 // Initialization
72 static void initialize();
73
74 // Instruction support
75 static bool has_v8() { return (_features & v8_instructions_m) != 0; }
76 static bool has_v9() { return (_features & v9_instructions_m) != 0; }
77 static bool has_hardware_int_muldiv() { return (_features & hardware_int_muldiv_m) != 0; }
78 static bool has_hardware_fsmuld() { return (_features & hardware_fsmuld_m) != 0; }
79 static bool has_vis1() { return (_features & vis1_instructions_m) != 0; }
80 static bool has_vis2() { return (_features & vis2_instructions_m) != 0; }
81
82 static bool supports_compare_and_exchange()
83 { return has_v9(); }
84
85 static bool is_ultra3() { return (_features & ultra3_m) == ultra3_m; }
86 static bool is_sun4v() { return (_features & sun4v_m) != 0; }
87 static bool is_niagara1() { return is_niagara1(_features); }
88
89 static bool has_fast_fxtof() { return has_v9() && !is_ultra3(); }
115 count = 512;
116 }
117 return count;
118 }
119 static intx allocate_prefetch_style() {
120 assert(AllocatePrefetchStyle >= 0, "AllocatePrefetchStyle should be positive");
121 // Return 0 if AllocatePrefetchDistance was not defined.
122 return AllocatePrefetchDistance > 0 ? AllocatePrefetchStyle : 0;
123 }
124
125 // Legacy
126 static bool v8_instructions_work() { return has_v8() && !has_v9(); }
127 static bool v9_instructions_work() { return has_v9(); }
128
129 // Assembler testing
130 static void allow_all();
131 static void revert();
132
133 // Override the Abstract_VM_Version implementation.
134 static uint page_size_count() { return is_sun4v() ? 4 : 2; }
135 };
|
1 #ifdef USE_PRAGMA_IDENT_HDR
2 #pragma ident "@(#)vm_version_sparc.hpp 1.33 07/10/04 10:49:21 JVM"
3 #endif
4 /*
5 * Copyright 1997-2008 Sun Microsystems, Inc. All Rights Reserved.
6 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
7 *
8 * This code is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License version 2 only, as
10 * published by the Free Software Foundation.
11 *
12 * This code is distributed in the hope that it will be useful, but WITHOUT
13 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
15 * version 2 for more details (a copy is included in the LICENSE file that
16 * accompanied this code).
17 *
18 * You should have received a copy of the GNU General Public License version
19 * 2 along with this work; if not, write to the Free Software Foundation,
20 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
21 *
22 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
23 * CA 95054 USA or visit www.sun.com if you need additional information or
24 * have any questions.
25 *
50 sun4v_m = 1 << sun4v_instructions,
51
52 generic_v8_m = v8_instructions_m | hardware_int_muldiv_m | hardware_fsmuld_m,
53 generic_v9_m = generic_v8_m | v9_instructions_m | vis1_instructions_m,
54 ultra3_m = generic_v9_m | vis2_instructions_m,
55
56 // Temporary until we have something more accurate
57 niagara1_unique_m = sun4v_m,
58 niagara1_m = generic_v9_m | niagara1_unique_m
59 };
60
61 static int _features;
62 static const char* _features_str;
63
64 static void print_features();
65 static int determine_features();
66 static int platform_features(int features);
67
68 static bool is_niagara1(int features) { return (features & niagara1_m) == niagara1_m; }
69
70 static int maximum_niagara1_processor_count() { return 32; }
71 // Returns true if the platform is in the niagara line and
72 // newer than the niagara1.
73 static bool is_niagara1_plus();
74
75 public:
76 // Initialization
77 static void initialize();
78
79 // Instruction support
80 static bool has_v8() { return (_features & v8_instructions_m) != 0; }
81 static bool has_v9() { return (_features & v9_instructions_m) != 0; }
82 static bool has_hardware_int_muldiv() { return (_features & hardware_int_muldiv_m) != 0; }
83 static bool has_hardware_fsmuld() { return (_features & hardware_fsmuld_m) != 0; }
84 static bool has_vis1() { return (_features & vis1_instructions_m) != 0; }
85 static bool has_vis2() { return (_features & vis2_instructions_m) != 0; }
86
87 static bool supports_compare_and_exchange()
88 { return has_v9(); }
89
90 static bool is_ultra3() { return (_features & ultra3_m) == ultra3_m; }
91 static bool is_sun4v() { return (_features & sun4v_m) != 0; }
92 static bool is_niagara1() { return is_niagara1(_features); }
93
94 static bool has_fast_fxtof() { return has_v9() && !is_ultra3(); }
120 count = 512;
121 }
122 return count;
123 }
124 static intx allocate_prefetch_style() {
125 assert(AllocatePrefetchStyle >= 0, "AllocatePrefetchStyle should be positive");
126 // Return 0 if AllocatePrefetchDistance was not defined.
127 return AllocatePrefetchDistance > 0 ? AllocatePrefetchStyle : 0;
128 }
129
130 // Legacy
131 static bool v8_instructions_work() { return has_v8() && !has_v9(); }
132 static bool v9_instructions_work() { return has_v9(); }
133
134 // Assembler testing
135 static void allow_all();
136 static void revert();
137
138 // Override the Abstract_VM_Version implementation.
139 static uint page_size_count() { return is_sun4v() ? 4 : 2; }
140
141 // Calculates the number of parallel threads
142 static unsigned int calc_parallel_worker_threads();
143 };
|