diff options
author | Arnd Bergmann <arnd@arndb.de> | 2012-01-07 20:53:13 +0000 |
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committer | Arnd Bergmann <arnd@arndb.de> | 2012-01-07 20:53:13 +0000 |
commit | 23c4c1c7b0dd2ebeb90bb6851478c0e80fe9e6b8 (patch) | |
tree | 60ab5e96f1e6e0ddd46eadf34d8a83ae2d8db72a /arch/arm/plat-versatile/sched-clock.c | |
parent | e195ffbe4573f79d590e63e2ae32dac2a73d5768 (diff) | |
parent | 7b9dd47136c07ffd883aff6926c7b281e4c1eea4 (diff) |
Merge branch 'depends/rmk/for-linus' into next/soc
Conflicts:
arch/arm/mach-tegra/board-dt-tegra20.c
arch/arm/mach-tegra/common.c
Diffstat (limited to 'arch/arm/plat-versatile/sched-clock.c')
-rw-r--r-- | arch/arm/plat-versatile/sched-clock.c | 29 |
1 files changed, 6 insertions, 23 deletions
diff --git a/arch/arm/plat-versatile/sched-clock.c b/arch/arm/plat-versatile/sched-clock.c index 3d6a4c292cab..b33b74c87232 100644 --- a/arch/arm/plat-versatile/sched-clock.c +++ b/arch/arm/plat-versatile/sched-clock.c @@ -18,41 +18,24 @@ * 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.h> #include <asm/sched_clock.h> #include <plat/sched_clock.h> -static DEFINE_CLOCK_DATA(cd); static void __iomem *ctr; -/* - * Constants generated by clocks_calc_mult_shift(m, s, 24MHz, NSEC_PER_SEC, 60). - * This gives a resolution of about 41ns and a wrap period of about 178s. - */ -#define SC_MULT 2796202667u -#define SC_SHIFT 26 - -unsigned long long notrace sched_clock(void) +static u32 notrace versatile_read_sched_clock(void) { - if (ctr) { - u32 cyc = readl(ctr); - return cyc_to_fixed_sched_clock(&cd, cyc, (u32)~0, - SC_MULT, SC_SHIFT); - } else - return 0; -} + if (ctr) + return readl(ctr); -static void notrace versatile_update_sched_clock(void) -{ - u32 cyc = readl(ctr); - update_sched_clock(&cd, cyc, (u32)~0); + return 0; } void __init versatile_sched_clock_init(void __iomem *reg, unsigned long rate) { ctr = reg; - init_fixed_sched_clock(&cd, versatile_update_sched_clock, - 32, rate, SC_MULT, SC_SHIFT); + setup_sched_clock(versatile_read_sched_clock, 32, rate); } |