jdk-sandbox: src/hotspot/os_cpu/linux_x86/gc/z/zGlobals_linux

50525 767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	1	/*
53244 9807daeb47c4 8216167: Update include guards to reflect correct directories coleenp parents: 52939 diff changeset	2	* Copyright (c) 2015, 2019, Oracle and/or its affiliates. All rights reserved.
50525 767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	4	*
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	5	* This code is free software; you can redistribute it and/or modify it
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	6	* under the terms of the GNU General Public License version 2 only, as
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	7	* published by the Free Software Foundation.
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	8	*
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	9	* This code is distributed in the hope that it will be useful, but WITHOUT
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	12	* version 2 for more details (a copy is included in the LICENSE file that
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	13	* accompanied this code).
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	14	*
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	15	* You should have received a copy of the GNU General Public License version
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	16	* 2 along with this work; if not, write to the Free Software Foundation,
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	18	*
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	20	* or visit www.oracle.com if you need additional information or have any
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	21	* questions.
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	22	*/
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	23
53244 9807daeb47c4 8216167: Update include guards to reflect correct directories coleenp parents: 52939 diff changeset	24	#ifndef OS_CPU_LINUX_X86_GC_Z_ZGLOBALS_LINUX_X86_HPP
9807daeb47c4 8216167: Update include guards to reflect correct directories coleenp parents: 52939 diff changeset	25	#define OS_CPU_LINUX_X86_GC_Z_ZGLOBALS_LINUX_X86_HPP
50525 767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	26
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	27	//
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	28	// Page Allocation Tiers
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	29	// ---------------------
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	30	//
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	31	// Page Type Page Size Object Size Limit Object Alignment
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	32	// ------------------------------------------------------------------
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	33	// Small 2M <= 265K <MinObjAlignmentInBytes>
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	34	// Medium 32M <= 4M 4K
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	35	// Large X*M > 4M 2M
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	36	// ------------------------------------------------------------------
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	37	//
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	38	//
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	39	// Address Space & Pointer Layout
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	40	// ------------------------------
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	41	//
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	42	// +--------------------------------+ 0x00007FFFFFFFFFFF (127TB)
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	43	// . .
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	44	// . .
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	45	// . .
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	46	// +--------------------------------+ 0x0000140000000000 (20TB)
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	47	// \| Remapped View \|
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	48	// +--------------------------------+ 0x0000100000000000 (16TB)
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	49	// \| (Reserved, but unused) \|
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	50	// +--------------------------------+ 0x00000c0000000000 (12TB)
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	51	// \| Marked1 View \|
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	52	// +--------------------------------+ 0x0000080000000000 (8TB)
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	53	// \| Marked0 View \|
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	54	// +--------------------------------+ 0x0000040000000000 (4TB)
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	55	// . .
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	56	// +--------------------------------+ 0x0000000000000000
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	57	//
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	58	//
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	59	// 6 4 4 4 4 4 0
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	60	// 3 7 6 5 2 1 0
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	61	// +-------------------+-+----+-----------------------------------------------+
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	62	// \|00000000 00000000 0\|0\|1111\|11 11111111 11111111 11111111 11111111 11111111\|
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	63	// +-------------------+-+----+-----------------------------------------------+
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	64	// \| \| \| \|
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	65	// \| \| \| * 41-0 Object Offset (42-bits, 4TB address space)
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	66	// \| \| \|
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	67	// \| \| * 45-42 Metadata Bits (4-bits) 0001 = Marked0 (Address view 4-8TB)
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	68	// \| \| 0010 = Marked1 (Address view 8-12TB)
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	69	// \| \| 0100 = Remapped (Address view 16-20TB)
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	70	// \| \| 1000 = Finalizable (Address view N/A)
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	71	// \| \|
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	72	// \| * 46-46 Unused (1-bit, always zero)
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	73	// \|
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	74	// * 63-47 Fixed (17-bits, always zero)
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	75	//
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	76
54094 ed3c6f07faab 8219633: ZGC: Rename ZPageSizeMin to ZGranuleSize pliden parents: 53244 diff changeset	77	const size_t ZPlatformGranuleSizeShift = 21; // 2M
50525 767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	78
52939 9a8585f60c32 8214897: ZGC: Concurrent Class Unloading eosterlund parents: 50525 diff changeset	79	const size_t ZPlatformAddressOffsetBits = 42; // 4TB
9a8585f60c32 8214897: ZGC: Concurrent Class Unloading eosterlund parents: 50525 diff changeset	80
9a8585f60c32 8214897: ZGC: Concurrent Class Unloading eosterlund parents: 50525 diff changeset	81	const uintptr_t ZPlatformAddressMetadataShift = ZPlatformAddressOffsetBits;
50525 767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	82
52939 9a8585f60c32 8214897: ZGC: Concurrent Class Unloading eosterlund parents: 50525 diff changeset	83	const uintptr_t ZPlatformAddressSpaceStart = (uintptr_t)1 << ZPlatformAddressOffsetBits;
9a8585f60c32 8214897: ZGC: Concurrent Class Unloading eosterlund parents: 50525 diff changeset	84	const uintptr_t ZPlatformAddressSpaceSize = ((uintptr_t)1 << ZPlatformAddressOffsetBits) * 4;
50525 767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	85
52939 9a8585f60c32 8214897: ZGC: Concurrent Class Unloading eosterlund parents: 50525 diff changeset	86	const size_t ZPlatformNMethodDisarmedOffset = 4;
50525 767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	87
52939 9a8585f60c32 8214897: ZGC: Concurrent Class Unloading eosterlund parents: 50525 diff changeset	88	const size_t ZPlatformCacheLineSize = 64;
50525 767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental) pliden parents: diff changeset	89
53244 9807daeb47c4 8216167: Update include guards to reflect correct directories coleenp parents: 52939 diff changeset	90	#endif // OS_CPU_LINUX_X86_GC_Z_ZGLOBALS_LINUX_X86_HPP

author	pliden
	Wed, 13 Mar 2019 11:31:00 +0100
changeset 54094	ed3c6f07faab
parent 53244	9807daeb47c4
child 54617	24f6b0e413a0
permissions	-rw-r--r--