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Diffstat (limited to 'arch/arm64/include/asm/arm_generic.h')
| -rw-r--r-- | arch/arm64/include/asm/arm_generic.h | 100 | 
1 files changed, 0 insertions, 100 deletions
diff --git a/arch/arm64/include/asm/arm_generic.h b/arch/arm64/include/asm/arm_generic.h deleted file mode 100644 index df2aeb82f74..00000000000 --- a/arch/arm64/include/asm/arm_generic.h +++ /dev/null @@ -1,100 +0,0 @@ -/* - * arch/arm64/include/asm/arm_generic.h - * - * Copyright (C) 2012 ARM Ltd. - * Author: Marc Zyngier <marc.zyngier@arm.com> - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program.  If not, see <http://www.gnu.org/licenses/>. - */ -#ifndef __ASM_ARM_GENERIC_H -#define __ASM_ARM_GENERIC_H - -#include <linux/clocksource.h> - -#define ARCH_TIMER_CTRL_ENABLE		(1 << 0) -#define ARCH_TIMER_CTRL_IMASK		(1 << 1) -#define ARCH_TIMER_CTRL_ISTATUS		(1 << 2) - -#define ARCH_TIMER_REG_CTRL		0 -#define ARCH_TIMER_REG_FREQ		1 -#define ARCH_TIMER_REG_TVAL		2 - -static inline void arch_timer_reg_write(int reg, u32 val) -{ -	switch (reg) { -	case ARCH_TIMER_REG_CTRL: -		asm volatile("msr cntp_ctl_el0,  %0" : : "r" (val)); -		break; -	case ARCH_TIMER_REG_TVAL: -		asm volatile("msr cntp_tval_el0, %0" : : "r" (val)); -		break; -	default: -		BUILD_BUG(); -	} - -	isb(); -} - -static inline u32 arch_timer_reg_read(int reg) -{ -	u32 val; - -	switch (reg) { -	case ARCH_TIMER_REG_CTRL: -		asm volatile("mrs %0,  cntp_ctl_el0" : "=r" (val)); -		break; -	case ARCH_TIMER_REG_FREQ: -		asm volatile("mrs %0,   cntfrq_el0" : "=r" (val)); -		break; -	case ARCH_TIMER_REG_TVAL: -		asm volatile("mrs %0, cntp_tval_el0" : "=r" (val)); -		break; -	default: -		BUILD_BUG(); -	} - -	return val; -} - -static inline void __cpuinit arch_counter_enable_user_access(void) -{ -	u32 cntkctl; - -	/* Disable user access to the timers and the physical counter. */ -	asm volatile("mrs	%0, cntkctl_el1" : "=r" (cntkctl)); -	cntkctl &= ~((3 << 8) | (1 << 0)); - -	/* Enable user access to the virtual counter and frequency. */ -	cntkctl |= (1 << 1); -	asm volatile("msr	cntkctl_el1, %0" : : "r" (cntkctl)); -} - -static inline cycle_t arch_counter_get_cntpct(void) -{ -	cycle_t cval; - -	asm volatile("mrs %0, cntpct_el0" : "=r" (cval)); - -	return cval; -} - -static inline cycle_t arch_counter_get_cntvct(void) -{ -	cycle_t cval; - -	asm volatile("mrs %0, cntvct_el0" : "=r" (cval)); - -	return cval; -} - -#endif  |