projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| f5fc0082 RK |
1 | /* |
| 2 | * linux/arch/arm/plat-versatile/sched-clock.c | |
| 3 | * | |
| 4 | * Copyright (C) 1999 - 2003 ARM Limited | |
| 5 | * Copyright (C) 2000 Deep Blue Solutions Ltd | |
| 6 | * | |
| 7 | * This program is free software; you can redistribute it and/or modify | |
| 8 | * it under the terms of the GNU General Public License as published by | |
| 9 | * the Free Software Foundation; either version 2 of the License, or | |
| 10 | * (at your option) any later version. | |
| 11 | * | |
| 12 | * This program is distributed in the hope that it will be useful, | |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 15 | * GNU General Public License for more details. | |
| 16 | * | |
| 17 | * You should have received a copy of the GNU General Public License | |
| 18 | * along with this program; if not, write to the Free Software | |
| 19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
| 20 | */ | |
| 2f0778af | 21 | #include <linux/kernel.h> |
| f5fc0082 | 22 | #include <linux/io.h> |
| 38ff87f7 | 23 | #include <linux/sched_clock.h> |
| f5fc0082 | 24 | |
| 1da0c89c | 25 | #include <plat/sched_clock.h> |
| f5fc0082 | 26 | |
| 1da0c89c | 27 | static void __iomem *ctr; |
| f5fc0082 | 28 | |
| d25f1d5a | 29 | static u64 notrace versatile_read_sched_clock(void) |
| f5fc0082 | 30 | { |
| 2f0778af MZ |
31 | if (ctr) |
| 32 | return readl(ctr); | |
| f5fc0082 | 33 | |
| 2f0778af | 34 | return 0; |
| 1da0c89c | 35 | } |
| f5fc0082 | 36 | |
| 1da0c89c RK |
37 | void __init versatile_sched_clock_init(void __iomem *reg, unsigned long rate) |
| 38 | { | |
| 39 | ctr = reg; | |
| d25f1d5a | 40 | sched_clock_register(versatile_read_sched_clock, 32, rate); |
| f5fc0082 | 41 | } |