37 lines
1.1 KiB
C
37 lines
1.1 KiB
C
/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2008,2009 Free Software Foundation, Inc.
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*
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* GRUB is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* GRUB is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef KERNEL_CPU_PMTIMER_HEADER
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#define KERNEL_CPU_PMTIMER_HEADER 1
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#include <grub/i386/tsc.h>
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#include <grub/i386/io.h>
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/*
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Preconditions:
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* Caller has ensured that both pmtimer and tsc are supported
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* 1 <= num_pm_ticks <= 3580
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Return:
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* Number of TSC ticks elapsed
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* 0 on failure.
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*/
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grub_uint64_t
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EXPORT_FUNC(grub_pmtimer_wait_count_tsc) (grub_port_t pmtimer,
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grub_uint16_t num_pm_ticks);
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#endif
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