d54853ef8c
This patch adds support for clock synchronization to an external time reference (ETR). The external time reference sends an oscillator signal and a synchronization signal every 2^20 microseconds to keep the TOD clocks of all connected servers in sync. For availability two ETR units can be connected to a machine. If the clock deviates for more than the sync-check tolerance all cpus get a machine check that indicates that the clock is out of sync. For the lovely details how to get the clock back in sync see the code below. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> |
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| .. | ||
| delay.c | ||
| div64.c | ||
| Makefile | ||
| spinlock.c | ||
| string.c | ||
| uaccess.h | ||
| uaccess_mvcos.c | ||
| uaccess_pt.c | ||
| uaccess_std.c | ||