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| author | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2015-06-18 14:23:00 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2015-06-25 09:39:24 +0200 |
| commit | d08d94306e9020fad18a5d079b88ba374784eef8 (patch) | |
| tree | b121b154694d198ec6d240b48ffc84d44b4998e2 /arch/s390/include/asm/cpu.h | |
| parent | s390/smp: fix sigp cpu detection loop (diff) | |
| download | linux-d08d94306e9020fad18a5d079b88ba374784eef8.tar.xz linux-d08d94306e9020fad18a5d079b88ba374784eef8.zip | |
s390/smp: cleanup core vs. cpu in the SCLP interface
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 <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/include/asm/cpu.h')
| -rw-r--r-- | arch/s390/include/asm/cpu.h | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/arch/s390/include/asm/cpu.h b/arch/s390/include/asm/cpu.h index f5a8e2fcde0c..91541000378e 100644 --- a/arch/s390/include/asm/cpu.h +++ b/arch/s390/include/asm/cpu.h @@ -8,8 +8,6 @@ #ifndef _ASM_S390_CPU_H #define _ASM_S390_CPU_H -#define MAX_CPU_ADDRESS 255 - #ifndef __ASSEMBLY__ #include <linux/types.h> |