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| author | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2017-09-22 14:17:41 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2017-09-28 07:29:43 +0200 |
| commit | 1887aa07b6765d345dd79f26017aa2d15d49d7af (patch) | |
| tree | 24dcca920f2326ac49c4ccd740d60b8b44e14ba7 /arch/s390/include | |
| parent | s390/sclp: Use setup_timer and mod_timer (diff) | |
| download | linux-1887aa07b6765d345dd79f26017aa2d15d49d7af.tar.xz linux-1887aa07b6765d345dd79f26017aa2d15d49d7af.zip | |
s390/topology: add detection of dedicated vs shared CPUs
The topology information returned by STSI 15.x.x contains a flag
if the CPUs of a topology-list are dedicated or shared. Make this
information available if the machine provides topology information.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/include')
| -rw-r--r-- | arch/s390/include/asm/processor.h | 2 | ||||
| -rw-r--r-- | arch/s390/include/asm/sysinfo.h | 3 | ||||
| -rw-r--r-- | arch/s390/include/asm/topology.h | 2 |
3 files changed, 6 insertions, 1 deletions
diff --git a/arch/s390/include/asm/processor.h b/arch/s390/include/asm/processor.h index 58eaaccd3cf0..4c5fde30d741 100644 --- a/arch/s390/include/asm/processor.h +++ b/arch/s390/include/asm/processor.h @@ -21,6 +21,7 @@ #define CIF_IGNORE_IRQ 5 /* ignore interrupt (for udelay) */ #define CIF_ENABLED_WAIT 6 /* in enabled wait state */ #define CIF_MCCK_GUEST 7 /* machine check happening in guest */ +#define CIF_DEDICATED_CPU 8 /* this CPU is dedicated */ #define _CIF_MCCK_PENDING _BITUL(CIF_MCCK_PENDING) #define _CIF_ASCE_PRIMARY _BITUL(CIF_ASCE_PRIMARY) @@ -30,6 +31,7 @@ #define _CIF_IGNORE_IRQ _BITUL(CIF_IGNORE_IRQ) #define _CIF_ENABLED_WAIT _BITUL(CIF_ENABLED_WAIT) #define _CIF_MCCK_GUEST _BITUL(CIF_MCCK_GUEST) +#define _CIF_DEDICATED_CPU _BITUL(CIF_DEDICATED_CPU) #ifndef __ASSEMBLY__ diff --git a/arch/s390/include/asm/sysinfo.h b/arch/s390/include/asm/sysinfo.h index 2b498e58b914..0f09135f0ae4 100644 --- a/arch/s390/include/asm/sysinfo.h +++ b/arch/s390/include/asm/sysinfo.h @@ -156,7 +156,8 @@ static inline unsigned char topology_mnest_limit(void) struct topology_core { unsigned char nl; unsigned char reserved0[3]; - unsigned char :6; + unsigned char :5; + unsigned char d:1; unsigned char pp:2; unsigned char reserved1; unsigned short origin; diff --git a/arch/s390/include/asm/topology.h b/arch/s390/include/asm/topology.h index 5222da162b69..5108176435c1 100644 --- a/arch/s390/include/asm/topology.h +++ b/arch/s390/include/asm/topology.h @@ -16,6 +16,7 @@ struct cpu_topology_s390 { unsigned short book_id; unsigned short drawer_id; unsigned short node_id; + unsigned short dedicated : 1; cpumask_t thread_mask; cpumask_t core_mask; cpumask_t book_mask; @@ -34,6 +35,7 @@ extern cpumask_t cpus_with_topology; #define topology_book_cpumask(cpu) (&cpu_topology[cpu].book_mask) #define topology_drawer_id(cpu) (cpu_topology[cpu].drawer_id) #define topology_drawer_cpumask(cpu) (&cpu_topology[cpu].drawer_mask) +#define topology_cpu_dedicated(cpu) (cpu_topology[cpu].dedicated) #define mc_capable() 1 |