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src/cpu/sparc/vm/globals_sparc.hpp@a9becfeecd1b (annotated)

src/cpu/sparc/vm/globals_sparc.hpp

Wed, 22 Jan 2014 17:42:23 -0800

author

kvn

date

Wed, 22 Jan 2014 17:42:23 -0800

changeset 6503

a9becfeecd1b

parent 6490

41b780b43b74

parent 6198

55fb97c4c58d

child 6876

710a3c8b516e

child 7854

e8260b6328fb

permissions

-rw-r--r--

Merge

duke@435	1	/*
mikael@6198	2	* Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.
duke@435	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435	4	*
duke@435	5	* This code is free software; you can redistribute it and/or modify it
duke@435	6	* under the terms of the GNU General Public License version 2 only, as
duke@435	7	* published by the Free Software Foundation.
duke@435	8	*
duke@435	9	* This code is distributed in the hope that it will be useful, but WITHOUT
duke@435	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@435	12	* version 2 for more details (a copy is included in the LICENSE file that
duke@435	13	* accompanied this code).
duke@435	14	*
duke@435	15	* You should have received a copy of the GNU General Public License version
duke@435	16	* 2 along with this work; if not, write to the Free Software Foundation,
duke@435	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435	18	*
trims@1907	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907	20	* or visit www.oracle.com if you need additional information or have any
trims@1907	21	* questions.
duke@435	22	*
duke@435	23	*/
duke@435	24
stefank@2314	25	#ifndef CPU_SPARC_VM_GLOBALS_SPARC_HPP
stefank@2314	26	#define CPU_SPARC_VM_GLOBALS_SPARC_HPP
stefank@2314	27
stefank@2314	28	#include "utilities/globalDefinitions.hpp"
stefank@2314	29	#include "utilities/macros.hpp"
stefank@2314	30
duke@435	31	// Sets the default values for platform dependent flags used by the runtime system.
duke@435	32	// (see globals.hpp)
duke@435	33
duke@435	34	// For sparc we do not do call backs when a thread is in the interpreter, because the
duke@435	35	// interpreter dispatch needs at least two instructions - first to load the dispatch address
duke@435	36	// in a register, and second to jmp. The swapping of the dispatch table may occur _after_
duke@435	37	// the load of the dispatch address and hence the jmp would still go to the location
duke@435	38	// according to the prior table. So, we let the thread continue and let it block by itself.
duke@435	39	define_pd_global(bool, DontYieldALot, true); // yield no more than 100 times per second
duke@435	40	define_pd_global(bool, ConvertSleepToYield, false); // do not convert sleep(0) to yield. Helps GUI
duke@435	41	define_pd_global(bool, ShareVtableStubs, false); // improves performance markedly for mtrt and compress
duke@435	42	define_pd_global(bool, CountInterpCalls, false); // not implemented in the interpreter
duke@435	43	define_pd_global(bool, NeedsDeoptSuspend, true); // register window machines need this
duke@435	44
duke@435	45	define_pd_global(bool, ImplicitNullChecks, true); // Generate code for implicit null checks
goetz@6490	46	define_pd_global(bool, TrapBasedNullChecks, false); // Not needed on sparc.
goetz@6490	47	define_pd_global(bool, UncommonNullCast, true); // Uncommon-trap NULLs passed to check cast
duke@435	48
phh@1499	49	define_pd_global(intx, CodeEntryAlignment, 32);
kvn@1800	50	// The default setting 16/16 seems to work best.
kvn@1800	51	// (For _228_jack 16/16 is 2% better than 4/4, 16/4, 32/32, 32/16, or 16/32.)
kvn@1800	52	define_pd_global(intx, OptoLoopAlignment, 16); // = 4*wordSize
phh@1499	53	define_pd_global(intx, InlineFrequencyCount, 50); // we can use more inlining on the SPARC
phh@1499	54	define_pd_global(intx, InlineSmallCode, 1500);
ysr@2650	55
duke@435	56	#ifdef _LP64
duke@435	57	// Stack slots are 2X larger in LP64 than in the 32 bit VM.
phh@1499	58	define_pd_global(intx, ThreadStackSize, 1024);
phh@1499	59	define_pd_global(intx, VMThreadStackSize, 1024);
coleenp@3552	60	define_pd_global(intx, StackShadowPages, 10 DEBUG_ONLY(+1));
duke@435	61	#else
phh@1499	62	define_pd_global(intx, ThreadStackSize, 512);
phh@1499	63	define_pd_global(intx, VMThreadStackSize, 512);
coleenp@3552	64	define_pd_global(intx, StackShadowPages, 3 DEBUG_ONLY(+1));
duke@435	65	#endif
duke@435	66
duke@435	67	define_pd_global(intx, StackYellowPages, 2);
duke@435	68	define_pd_global(intx, StackRedPages, 1);
duke@435	69
phh@1499	70	define_pd_global(intx, PreInflateSpin, 40); // Determined by running design center
duke@435	71
duke@435	72	define_pd_global(bool, RewriteBytecodes, true);
duke@435	73	define_pd_global(bool, RewriteFrequentPairs, true);
bobv@2223	74
bobv@2223	75	define_pd_global(bool, UseMembar, false);
stefank@2314	76
ysr@2650	77	// GC Ergo Flags
tschatzl@5119	78	define_pd_global(uintx, CMSYoungGenPerWorker, 16*M); // default max size of CMS young gen, per GC worker thread
twisti@4020	79
roland@5914	80	define_pd_global(uintx, TypeProfileLevel, 0);
roland@5914	81
twisti@4020	82	#define ARCH_FLAGS(develop, product, diagnostic, experimental, notproduct) \
twisti@4020	83	\
twisti@4020	84	product(intx, UseVIS, 99, \
twisti@4020	85	"Highest supported VIS instructions set on Sparc") \
twisti@4020	86	\
twisti@4020	87	product(bool, UseCBCond, false, \
twisti@4020	88	"Use compare and branch instruction on SPARC") \
twisti@4020	89	\
twisti@4020	90	product(bool, UseBlockZeroing, false, \
twisti@4020	91	"Use special cpu instructions for block zeroing") \
twisti@4020	92	\
twisti@4020	93	product(intx, BlockZeroingLowLimit, 2048, \
twisti@4020	94	"Minimum size in bytes when block zeroing will be used") \
twisti@4020	95	\
twisti@4020	96	product(bool, UseBlockCopy, false, \
twisti@4020	97	"Use special cpu instructions for block copy") \
twisti@4020	98	\
twisti@4020	99	product(intx, BlockCopyLowLimit, 2048, \
twisti@4020	100	"Minimum size in bytes when block copy will be used") \
twisti@4020	101	\
twisti@4020	102	develop(bool, UseV8InstrsOnly, false, \
twisti@4020	103	"Use SPARC-V8 Compliant instruction subset") \
twisti@4020	104	\
twisti@4020	105	product(bool, UseNiagaraInstrs, false, \
twisti@4020	106	"Use Niagara-efficient instruction subset") \
twisti@4020	107	\
twisti@4020	108	develop(bool, UseCASForSwap, false, \
twisti@4020	109	"Do not use swap instructions, but only CAS (in a loop) on SPARC")\
twisti@4020	110	\
twisti@4020	111	product(uintx, ArraycopySrcPrefetchDistance, 0, \
twisti@4020	112	"Distance to prefetch source array in arracopy") \
twisti@4020	113	\
twisti@4020	114	product(uintx, ArraycopyDstPrefetchDistance, 0, \
twisti@4020	115	"Distance to prefetch destination array in arracopy") \
twisti@4020	116
stefank@2314	117	#endif // CPU_SPARC_VM_GLOBALS_SPARC_HPP