50 lines
1.5 KiB
C
50 lines
1.5 KiB
C
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/* Copyright (c) 2012, The Linux Foundation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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* only version 2 as published by the Free Software Foundation.
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*
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* This program 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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#ifndef _ARM_KERNEL_USER_ACCESSIBLE_TIMER_H_
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#define _ARM_KERNEL_USER_ACCESSIBLE_TIMER_H_
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#define ARM_USER_ACCESSIBLE_TIMERS_INVALID_PAGE -1
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extern unsigned long zero_pfn;
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#ifdef CONFIG_ARM_USE_USER_ACCESSIBLE_TIMERS
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#ifndef CONFIG_ARM_USER_ACCESSIBLE_TIMER_BASE
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#define CONFIG_ARM_USER_ACCESSIBLE_TIMER_BASE 0xfffef000
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#endif
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extern void setup_user_timer_offset(unsigned long addr);
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extern int get_timer_page_address(void);
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static inline int get_user_accessible_timers_base(void)
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{
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return CONFIG_ARM_USER_ACCESSIBLE_TIMER_BASE;
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}
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extern void set_user_accessible_timer_flag(bool flag);
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#else
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#define CONFIG_ARM_USER_ACCESSIBLE_TIMER_BASE 0
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static inline void setup_user_timer_offset(unsigned long addr)
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{
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}
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static inline int get_timer_page_address(void)
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{
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return ARM_USER_ACCESSIBLE_TIMERS_INVALID_PAGE;
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}
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static inline int get_user_accessible_timers_base(void)
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{
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return 0;
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}
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static inline void set_user_accessible_timer_flag(bool flag)
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{
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}
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#endif
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#endif
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