diff options
Diffstat (limited to 'sys/arch')
| -rw-r--r-- | sys/arch/sparc/conf/GENERIC | 6 | ||||
| -rw-r--r-- | sys/arch/sparc/conf/SUN4 | 18 | ||||
| -rw-r--r-- | sys/arch/sparc/conf/SUN4C | 4 | ||||
| -rw-r--r-- | sys/arch/sparc/conf/SUN4M | 6 |
4 files changed, 22 insertions, 12 deletions
diff --git a/sys/arch/sparc/conf/GENERIC b/sys/arch/sparc/conf/GENERIC index da5816771f3..49fedaa9206 100644 --- a/sys/arch/sparc/conf/GENERIC +++ b/sys/arch/sparc/conf/GENERIC @@ -1,4 +1,4 @@ -# $OpenBSD: GENERIC,v 1.22 1998/03/04 12:42:30 johns Exp $ +# $OpenBSD: GENERIC,v 1.23 1998/03/04 19:24:56 johns Exp $ # $NetBSD: GENERIC,v 1.48 1997/08/23 19:19:01 mjacob Exp $ # Machine architecture; required by config(8) @@ -58,8 +58,8 @@ power0 at obio0 # to use proportionally CPU time handling clock interrupts, # and if set to ridiculously high values may cause problems. # -# Note: sun4 system will only run the clocks at 100 Hz, other values -# are ignored. +# Note: 4/100 and 4/200 systems will only run the clocks at 100 Hz, +# other values are ignored. # # On sparc, 1000000 modulo HZ must == 0. If not, a warning is printed # at boot time, and HZ is reset to 100. diff --git a/sys/arch/sparc/conf/SUN4 b/sys/arch/sparc/conf/SUN4 index 61fc47fba02..8e0a54ced88 100644 --- a/sys/arch/sparc/conf/SUN4 +++ b/sys/arch/sparc/conf/SUN4 @@ -1,4 +1,4 @@ -# $OpenBSD: SUN4,v 1.17 1998/03/04 12:42:25 johns Exp $ +# $OpenBSD: SUN4,v 1.18 1998/03/04 19:24:51 johns Exp $ # $NetBSD: GENERIC,v 1.28.2.1 1996/07/02 23:55:22 jtc Exp $ # Machine architecture; required by config(8) @@ -31,9 +31,19 @@ obio0 at mainbus0 # sun4 and sun4m vmes0 at mainbus0 # sun4 vmel0 at mainbus0 # sun4 - -# Note: sun4 system will only run the clocks at 100 Hz, other values -# are ignored. The HZ option has no effect for sun4. +# The system clock (and stat clock) may be set higher than 100 Hz +# On sun4c and sun4m systems. This is useful if you have a speedy +# machine and need high accuracy timing for real-time oriented applications. +# Note: running the system clock at a higher rate will cause the kernel +# to use proportionally CPU time handling clock interrupts, +# and if set to ridiculously high values may cause problems. +# +# Note: 4/100 and 4/200 systems will only run the clocks at 100 Hz, +# other values are ignored. +# +# On sparc, 1000000 modulo HZ must == 0. If not, a warning is printed +# at boot time, and HZ is reset to 100. +#option HZ=1000 # Mostek clock found on 4/300, sun4c, and sun4m systems. # The Mostek clock NVRAM is the "eeprom" on sun4/300 systems. diff --git a/sys/arch/sparc/conf/SUN4C b/sys/arch/sparc/conf/SUN4C index 7efffbae8cf..5d0669f8e44 100644 --- a/sys/arch/sparc/conf/SUN4C +++ b/sys/arch/sparc/conf/SUN4C @@ -72,8 +72,8 @@ auxreg0 at mainbus0 # to use proportionally CPU time handling clock interrupts, # and if set to ridiculously high values may cause problems. # -# Note: sun4 system will only run the clocks at 100 Hz, other values -# are ignored. +# Note: 4/100 and 4/200 systems will only run the clocks at 100 Hz, +# other values are ignored. # # On sparc, 1000000 modulo HZ must == 0. If not, a warning is printed # at boot time, and HZ is reset to 100. diff --git a/sys/arch/sparc/conf/SUN4M b/sys/arch/sparc/conf/SUN4M index 288d1328122..92fd963904e 100644 --- a/sys/arch/sparc/conf/SUN4M +++ b/sys/arch/sparc/conf/SUN4M @@ -1,4 +1,4 @@ -# $OpenBSD: SUN4M,v 1.18 1998/03/04 12:42:28 johns Exp $ +# $OpenBSD: SUN4M,v 1.19 1998/03/04 19:24:54 johns Exp $ # $NetBSD: GENERIC,v 1.28.2.1 1996/07/02 23:55:22 jtc Exp $ # Machine architecture; required by config(8) @@ -47,8 +47,8 @@ power0 at obio0 # to use proportionally CPU time handling clock interrupts, # and if set to ridiculously high values may cause problems. # -# Note: sun4 system will only run the clocks at 100 Hz, other values -# are ignored. +# Note: 4/100 and 4/200 systems will only run the clocks at 100 Hz, +# other values are ignored. # # On sparc, 1000000 modulo HZ must == 0. If not, a warning is printed # at boot time, and HZ is reset to 100. |