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1 /* |
1 /* |
2 * Copyright (c) 1999, 2013, Oracle and/or its affiliates. All rights reserved. |
2 * Copyright (c) 1999, 2014, Oracle and/or its affiliates. All rights reserved. |
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * |
4 * |
5 * This code is free software; you can redistribute it and/or modify it |
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 |
6 * under the terms of the GNU General Public License version 2 only, as |
7 * published by the Free Software Foundation. |
7 * published by the Free Software Foundation. |
33 // signatures accordingly. |
33 // signatures accordingly. |
34 const bool CCallingConventionRequiresIntsAsLongs = false; |
34 const bool CCallingConventionRequiresIntsAsLongs = false; |
35 |
35 |
36 #define SUPPORTS_NATIVE_CX8 |
36 #define SUPPORTS_NATIVE_CX8 |
37 |
37 |
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38 // The expected size in bytes of a cache line, used to pad data structures. |
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39 #if defined(TIERED) |
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40 #ifdef _LP64 |
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41 // tiered, 64-bit, large machine |
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42 #define DEFAULT_CACHE_LINE_SIZE 128 |
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43 #else |
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44 // tiered, 32-bit, medium machine |
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45 #define DEFAULT_CACHE_LINE_SIZE 64 |
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46 #endif |
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47 #elif defined(COMPILER1) |
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48 // pure C1, 32-bit, small machine |
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49 // i486 was the last Intel chip with 16-byte cache line size |
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50 #define DEFAULT_CACHE_LINE_SIZE 32 |
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51 #elif defined(COMPILER2) || defined(SHARK) |
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52 #ifdef _LP64 |
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53 // pure C2, 64-bit, large machine |
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54 #define DEFAULT_CACHE_LINE_SIZE 128 |
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55 #else |
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56 // pure C2, 32-bit, medium machine |
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57 #define DEFAULT_CACHE_LINE_SIZE 64 |
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58 #endif |
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59 #endif |
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60 |
38 #endif // CPU_X86_VM_GLOBALDEFINITIONS_X86_HPP |
61 #endif // CPU_X86_VM_GLOBALDEFINITIONS_X86_HPP |