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src/cpu/ppc/vm/vm_version_ppc.hpp@f892c3b6b651 (annotated)

src/cpu/ppc/vm/vm_version_ppc.hpp

Thu, 22 Sep 2016 12:17:24 +0200

author

mdoerr

date

Thu, 22 Sep 2016 12:17:24 +0200

changeset 9497

f892c3b6b651

parent 8608

0d78aecb0948

child 9572

624a0741915c

child 9662

6eedcffa129d

permissions

-rw-r--r--

8164920: ppc: enhancement of CRC32 intrinsic
Reviewed-by: goetz, mdoerr
Contributed-by: Hiroshi H Horii <horii@jp.ibm.com>

goetz@6458	1	/*
goetz@6458	2	* Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
goetz@6515	3	* Copyright 2012, 2014 SAP AG. All rights reserved.
goetz@6458	4	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
goetz@6458	5	*
goetz@6458	6	* This code is free software; you can redistribute it and/or modify it
goetz@6458	7	* under the terms of the GNU General Public License version 2 only, as
goetz@6458	8	* published by the Free Software Foundation.
goetz@6458	9	*
goetz@6458	10	* This code is distributed in the hope that it will be useful, but WITHOUT
goetz@6458	11	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
goetz@6458	12	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
goetz@6458	13	* version 2 for more details (a copy is included in the LICENSE file that
goetz@6458	14	* accompanied this code).
goetz@6458	15	*
goetz@6458	16	* You should have received a copy of the GNU General Public License version
goetz@6458	17	* 2 along with this work; if not, write to the Free Software Foundation,
goetz@6458	18	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
goetz@6458	19	*
goetz@6458	20	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
goetz@6458	21	* or visit www.oracle.com if you need additional information or have any
goetz@6458	22	* questions.
goetz@6458	23	*
goetz@6458	24	*/
goetz@6458	25
goetz@6458	26	#ifndef CPU_PPC_VM_VM_VERSION_PPC_HPP
goetz@6458	27	#define CPU_PPC_VM_VM_VERSION_PPC_HPP
goetz@6458	28
goetz@6458	29	#include "runtime/globals_extension.hpp"
goetz@6458	30	#include "runtime/vm_version.hpp"
goetz@6458	31
goetz@6458	32	class VM_Version: public Abstract_VM_Version {
goetz@6458	33	protected:
goetz@6458	34	enum Feature_Flag {
goetz@6458	35	fsqrt,
goetz@6515	36	fsqrts,
goetz@6458	37	isel,
goetz@6458	38	lxarxeh,
goetz@6458	39	cmpb,
goetz@6458	40	popcntb,
goetz@6458	41	popcntw,
goetz@6458	42	fcfids,
goetz@6458	43	vand,
goetz@6458	44	dcba,
simonis@8608	45	vcipher,
mdoerr@9497	46	vpmsumb,
goetz@6458	47	num_features // last entry to count features
goetz@6458	48	};
goetz@6458	49	enum Feature_Flag_Set {
goetz@6458	50	unknown_m = 0,
goetz@6458	51	fsqrt_m = (1 << fsqrt ),
goetz@6515	52	fsqrts_m = (1 << fsqrts ),
goetz@6458	53	isel_m = (1 << isel ),
goetz@6458	54	lxarxeh_m = (1 << lxarxeh),
goetz@6458	55	cmpb_m = (1 << cmpb ),
goetz@6458	56	popcntb_m = (1 << popcntb),
goetz@6458	57	popcntw_m = (1 << popcntw),
goetz@6458	58	fcfids_m = (1 << fcfids ),
goetz@6458	59	vand_m = (1 << vand ),
goetz@6458	60	dcba_m = (1 << dcba ),
simonis@8608	61	vcipher_m = (1 << vcipher),
mdoerr@9497	62	vpmsumb_m = (1 << vpmsumb),
goetz@6458	63	all_features_m = -1
goetz@6458	64	};
goetz@6458	65	static int _features;
goetz@6458	66	static int _measured_cache_line_size;
goetz@6458	67	static const char* _features_str;
goetz@6458	68	static bool _is_determine_features_test_running;
goetz@6458	69
goetz@6458	70	static void print_features();
goetz@6458	71	static void determine_features(); // also measures cache line size
goetz@6458	72	static void determine_section_size();
goetz@6458	73	static void power6_micro_bench();
goetz@6458	74	public:
goetz@6458	75	// Initialization
goetz@6458	76	static void initialize();
goetz@6458	77
goetz@6458	78	static bool is_determine_features_test_running() { return _is_determine_features_test_running; }
goetz@6458	79	// CPU instruction support
goetz@6458	80	static bool has_fsqrt() { return (_features & fsqrt_m) != 0; }
goetz@6515	81	static bool has_fsqrts() { return (_features & fsqrts_m) != 0; }
goetz@6458	82	static bool has_isel() { return (_features & isel_m) != 0; }
goetz@6458	83	static bool has_lxarxeh() { return (_features & lxarxeh_m) !=0; }
goetz@6458	84	static bool has_cmpb() { return (_features & cmpb_m) != 0; }
goetz@6458	85	static bool has_popcntb() { return (_features & popcntb_m) != 0; }
goetz@6458	86	static bool has_popcntw() { return (_features & popcntw_m) != 0; }
goetz@6458	87	static bool has_fcfids() { return (_features & fcfids_m) != 0; }
goetz@6458	88	static bool has_vand() { return (_features & vand_m) != 0; }
goetz@6458	89	static bool has_dcba() { return (_features & dcba_m) != 0; }
simonis@8608	90	static bool has_vcipher() { return (_features & vcipher_m) != 0; }
mdoerr@9497	91	static bool has_vpmsumb() { return (_features & vpmsumb_m) != 0; }
goetz@6458	92
goetz@6458	93	static const char* cpu_features() { return _features_str; }
goetz@6458	94
goetz@6458	95	static int get_cache_line_size() { return _measured_cache_line_size; }
goetz@6458	96
goetz@6458	97	// Assembler testing
goetz@6458	98	static void allow_all();
goetz@6458	99	static void revert();
goetz@6458	100	};
goetz@6458	101
goetz@6458	102	#endif // CPU_PPC_VM_VM_VERSION_PPC_HPP