66 lines
1.8 KiB
C
66 lines
1.8 KiB
C
/*
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* sfi_processor.h
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* Copyright (c) 2010, Intel Corporation.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
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*
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*/
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#ifndef __SFI_PROCESSOR_H__
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#define __SFI_PROCESSOR_H__
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#include <linux/sfi.h>
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#include <linux/cpuidle.h>
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struct sfi_processor_power {
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struct cpuidle_device dev;
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u32 default_state;
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int count;
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struct cpuidle_state *states;
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struct sfi_cstate_table_entry *sfi_cstates;
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};
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struct sfi_processor_flags {
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u8 valid;
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u8 power;
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};
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struct sfi_processor {
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u32 id;
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struct sfi_processor_flags flags;
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struct sfi_processor_power power;
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struct sfi_processor_performance *performance;
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};
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/* Performance management */
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struct sfi_processor_px {
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u32 core_frequency; /* megahertz */
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u32 transition_latency; /* microseconds */
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u32 control; /* control value */
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};
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struct sfi_processor_performance {
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unsigned int state;
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unsigned int state_count;
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struct sfi_processor_px *states;
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};
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/* for communication between multiple parts of the processor kernel module */
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DECLARE_PER_CPU(struct sfi_processor *, sfi_processors);
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int sfi_processor_power_init(struct sfi_processor *pr);
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int sfi_processor_power_exit(struct sfi_processor *pr);
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#endif /*__SFI_PROCESSOR_H__*/
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