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006e9a4088
Move platform specific Linux headers under include/os/linux/. Update the build system accordingly to detect the platform. This lays some of the initial groundwork to supporting building for other platforms. As part of this change it was necessary to create both a user and kernel space sys/simd.h header which can be included in either context. No functional change, the source has been refactored and the relevant #include's updated. Reviewed-by: Jorgen Lundman <lundman@lundman.net> Reviewed-by: Igor Kozhukhov <igor@dilos.org> Signed-off-by: Matthew Macy <mmacy@FreeBSD.org> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #9198
65 lines
1.9 KiB
C
65 lines
1.9 KiB
C
/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License (the "License").
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* You may not use this file except in compliance with the License.
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*
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* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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* or http://www.opensolaris.org/os/licensing.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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* If applicable, add the following below this CDDL HEADER, with the
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* fields enclosed by brackets "[]" replaced with your own identifying
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* information: Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*/
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/*
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* Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
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*/
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#if defined(__x86_64) && defined(HAVE_PCLMULQDQ)
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#include <sys/types.h>
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#include <sys/simd.h>
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/* These functions are used to execute pclmulqdq based assembly methods */
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extern void gcm_mul_pclmulqdq(uint64_t *, uint64_t *, uint64_t *);
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#include <modes/gcm_impl.h>
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/*
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* Perform a carry-less multiplication (that is, use XOR instead of the
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* multiply operator) on *x_in and *y and place the result in *res.
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*
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* Byte swap the input (*x_in and *y) and the output (*res).
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*
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* Note: x_in, y, and res all point to 16-byte numbers (an array of two
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* 64-bit integers).
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*/
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static void
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gcm_pclmulqdq_mul(uint64_t *x_in, uint64_t *y, uint64_t *res)
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{
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kfpu_begin();
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gcm_mul_pclmulqdq(x_in, y, res);
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kfpu_end();
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}
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static boolean_t
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gcm_pclmulqdq_will_work(void)
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{
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return (kfpu_allowed() && zfs_pclmulqdq_available());
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}
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const gcm_impl_ops_t gcm_pclmulqdq_impl = {
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.mul = &gcm_pclmulqdq_mul,
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.is_supported = &gcm_pclmulqdq_will_work,
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.name = "pclmulqdq"
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};
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#endif /* defined(__x86_64) && defined(HAVE_PCLMULQDQ) */
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