diff options
author | Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 12:17:53 -0700 |
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committer | Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 15:44:42 -0700 |
commit | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch) | |
tree | 1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/include/clocksource/arm_arch_timer.h | |
parent | 98260f3884f4a202f9ca5eabed40b1354c489b29 (diff) |
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base.
It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:
commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Sat Jul 25 12:13:34 2015 +0200
Prepare v4.1.3-rt3
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.
Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/include/clocksource/arm_arch_timer.h')
-rw-r--r-- | kernel/include/clocksource/arm_arch_timer.h | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/kernel/include/clocksource/arm_arch_timer.h b/kernel/include/clocksource/arm_arch_timer.h new file mode 100644 index 000000000..9916d0e4e --- /dev/null +++ b/kernel/include/clocksource/arm_arch_timer.h @@ -0,0 +1,71 @@ +/* + * 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/timecounter.h> +#include <linux/types.h> + +#define ARCH_TIMER_CTRL_ENABLE (1 << 0) +#define ARCH_TIMER_CTRL_IT_MASK (1 << 1) +#define ARCH_TIMER_CTRL_IT_STAT (1 << 2) + +enum arch_timer_reg { + ARCH_TIMER_REG_CTRL, + ARCH_TIMER_REG_TVAL, +}; + +#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_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 */ + +#ifdef CONFIG_ARM_ARCH_TIMER + +extern u32 arch_timer_get_rate(void); +extern u64 (*arch_timer_read_counter)(void); +extern struct timecounter *arch_timer_get_timecounter(void); + +#else + +static inline u32 arch_timer_get_rate(void) +{ + return 0; +} + +static inline u64 arch_timer_read_counter(void) +{ + return 0; +} + +static inline struct timecounter *arch_timer_get_timecounter(void) +{ + return NULL; +} + +#endif + +#endif |