BMC/Intel-BMC/linux.git/arch/s390/include/asm/cpu.h, branch dev-4.6

s390/smp: cleanup core vs. cpu in the SCLP interface

2015-06-25T07:39:24+00:00

The SCLP interface to query, configure and deconfigure CPUs actually operates on cores. For a machine without the multi-threading faciltiy a CPU and a core are equivalent but starting with System z13 a core can have multiple hardware threads, also referred to as logical CPUs. To avoid confusion replace the word 'cpu' with 'core' in the SCLP interface. Also replace MAX_CPU_ADDRESS with SCLP_MAX_CORES. The core-id is an 8-bit field, the maximum thread id is in the range 0-31. The theoretical limit for the CPU address is therefore 8191. Signed-off-by: Martin Schwidefsky

s390/comments: unify copyright messages and remove file names

2012-07-20T09:15:04+00:00

Remove the file name from the comment at top of many files. In most cases the file name was wrong anyway, so it's rather pointless. Also unify the IBM copyright statement. We did have a lot of sightly different statements and wanted to change them one after another whenever a file gets touched. However that never happened. Instead people start to take the old/"wrong" statements to use as a template for new files. So unify all of them in one go. Signed-off-by: Heiko Carstens

[S390] correct alignment of cpuid structure

2010-10-25T14:10:19+00:00

The store-cpu-id instruction has a minimum alignment of 8. Reflect that in the definition of struct cpuid. Signed-off-by: Martin Schwidefsky

[S390] Get rid of cpuid.h header file.

2009-09-11T08:29:56+00:00

Merge cpuid.h header file into cpu.h. While at it convert from typedef to struct declaration and also convert cio code to use proper lowcore structure instead of casts. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky

[S390] Limit cpu detection to 256 physical cpus.

2009-09-11T08:29:55+00:00

Saves us more than 65k pointless IPIs. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky

[S390] merge cpu.h into cputime.h

2009-06-12T08:27:29+00:00

All definition in cpu.h have to do with cputime accounting. Move them to cputime.h and remove the header file. Signed-off-by: Martin Schwidefsky

[PATCH] improve idle cputime accounting

2008-12-31T14:11:48+00:00

Distinguish the cputime of the idle process where idle is actually using cpu cycles from the cputime where idle is sleeping on an enabled wait psw. The former is accounted as system time, the later as idle time. Signed-off-by: Martin Schwidefsky

[PATCH] improve precision of idle time detection.

2008-12-31T14:11:47+00:00

Increase the precision of the idle time calculation that is exported to user space via /sys/devices/system/cpu/cpu/idle_time_us Signed-off-by: Martin Schwidefsky

[S390] move include/asm-s390 to arch/s390/include/asm

2008-08-01T18:42:05+00:00

Signed-off-by: Martin Schwidefsky