diff options
Diffstat (limited to 'kernel/arch/arm/plat-versatile/sched-clock.c')
-rw-r--r-- | kernel/arch/arm/plat-versatile/sched-clock.c | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/kernel/arch/arm/plat-versatile/sched-clock.c b/kernel/arch/arm/plat-versatile/sched-clock.c new file mode 100644 index 000000000..c966ae90f --- /dev/null +++ b/kernel/arch/arm/plat-versatile/sched-clock.c @@ -0,0 +1,41 @@ +/* + * linux/arch/arm/plat-versatile/sched-clock.c + * + * Copyright (C) 1999 - 2003 ARM Limited + * Copyright (C) 2000 Deep Blue Solutions Ltd + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * 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, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ +#include <linux/kernel.h> +#include <linux/io.h> +#include <linux/sched_clock.h> + +#include <plat/sched_clock.h> + +static void __iomem *ctr; + +static u64 notrace versatile_read_sched_clock(void) +{ + if (ctr) + return readl(ctr); + + return 0; +} + +void __init versatile_sched_clock_init(void __iomem *reg, unsigned long rate) +{ + ctr = reg; + sched_clock_register(versatile_read_sched_clock, 32, rate); +} |