25 lines
583 B
C
25 lines
583 B
C
/*
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* \brief Time backend for jitterentropy library
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* \author Josef Soentgen
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* \date 2014-08-18
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*/
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/*
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* Copyright (C) 2014 Genode Labs GmbH
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*
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* This file is part of the Genode OS framework, which is distributed
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* under the terms of the GNU General Public License version 2.
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*/
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#ifndef _JITTERENTROPY_ARM_V6_BASE_GENODE_NSTIME_H_
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#define _JITTERENTROPY_ARM_V6_BASE_GENODE_NSTIME_H_
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static inline void jent_get_nstime(__u64 *out)
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{
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uint32_t t;
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asm volatile("mrc p15, 0, %0, c15, c12, 1" : "=r"(t));
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*out = t;
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}
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#endif /* _JITTERENTROPY_ARM_V6_BASE_GENODE_NSTIME_H */
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