/* * Copyright (C) 2012 ARM Ltd. * * 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 __CLKSOURCE_ARM_ARCH_TIMER_H#define __CLKSOURCE_ARM_ARCH_TIMER_H #include <linux/bitops.h>#include <linux/timecounter.h>#include <linux/types.h> #define ARCH_TIMER_TYPE_CP15		BIT(0)#define ARCH_TIMER_TYPE_MEM		BIT(1) #define ARCH_TIMER_CTRL_ENABLE		(1 << 0)#define ARCH_TIMER_CTRL_IT_MASK		(1 << 1)#define ARCH_TIMER_CTRL_IT_STAT		(1 << 2) #define CNTHCTL_EL1PCTEN		(1 << 0)#define CNTHCTL_EL1PCEN			(1 << 1)#define CNTHCTL_EVNTEN			(1 << 2)#define CNTHCTL_EVNTDIR			(1 << 3)#define CNTHCTL_EVNTI			(0xF << 4) enum arch_timer_reg {	ARCH_TIMER_REG_CTRL,	ARCH_TIMER_REG_TVAL,}; enum arch_timer_ppi_nr {	ARCH_TIMER_PHYS_SECURE_PPI,	ARCH_TIMER_PHYS_NONSECURE_PPI,	ARCH_TIMER_VIRT_PPI,	ARCH_TIMER_HYP_PPI,	ARCH_TIMER_MAX_TIMER_PPI}; enum arch_timer_spi_nr {	ARCH_TIMER_PHYS_SPI,	ARCH_TIMER_VIRT_SPI,	ARCH_TIMER_MAX_TIMER_SPI}; #define ARCH_TIMER_PHYS_ACCESS		0#define ARCH_TIMER_VIRT_ACCESS		1#define ARCH_TIMER_MEM_PHYS_ACCESS	2#define ARCH_TIMER_MEM_VIRT_ACCESS	3 #define ARCH_TIMER_MEM_MAX_FRAMES	8 #define ARCH_TIMER_USR_PCT_ACCESS_EN	(1 << 0) /* physical counter */#define ARCH_TIMER_USR_VCT_ACCESS_EN	(1 << 1) /* virtual counter */#define ARCH_TIMER_VIRT_EVT_EN		(1 << 2)#define ARCH_TIMER_EVT_TRIGGER_SHIFT	(4)#define ARCH_TIMER_EVT_TRIGGER_MASK	(0xF << ARCH_TIMER_EVT_TRIGGER_SHIFT)#define ARCH_TIMER_USR_VT_ACCESS_EN	(1 << 8) /* virtual timer registers */#define ARCH_TIMER_USR_PT_ACCESS_EN	(1 << 9) /* physical timer registers */ #define ARCH_TIMER_EVT_STREAM_FREQ	10000	/* 100us */ struct arch_timer_kvm_info {	struct timecounter timecounter;	int virtual_irq;}; struct arch_timer_mem_frame {	bool valid;	phys_addr_t cntbase;	size_t size;	int phys_irq;	int virt_irq;}; struct arch_timer_mem {	phys_addr_t cntctlbase;	size_t size;	struct arch_timer_mem_frame frame[ARCH_TIMER_MEM_MAX_FRAMES];}; #ifdef CONFIG_ARM_ARCH_TIMER extern u32 arch_timer_get_rate(void);extern u64 (*arch_timer_read_counter)(void);extern struct arch_timer_kvm_info *arch_timer_get_kvm_info(void); #else static inline u32 arch_timer_get_rate(void){	return 0;} static inline u64 arch_timer_read_counter(void){	return 0;} #endif #endif