diff options
| author | Huacai Chen <chenhc@lemote.com> | 2014-06-26 05:41:26 +0200 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2014-07-30 21:45:39 +0200 |
| commit | bda4584cd943d7bb6cf677a8d694700c1984cf3e (patch) | |
| tree | 892cd5d6ad7a03cf2a111f51de9921b2f8c8cf3b /arch/mips/include | |
| parent | MIPS: Support hard limit of cpu count (nr_cpu_ids) (diff) | |
| download | linux-bda4584cd943d7bb6cf677a8d694700c1984cf3e.tar.xz linux-bda4584cd943d7bb6cf677a8d694700c1984cf3e.zip | |
MIPS: Support CPU topology files in sysfs
This patch is prepared for Loongson's NUMA support, it offer meaningful
sysfs files such as physical_package_id, core_id, core_siblings and
thread_siblings in /sys/devices/system/cpu/cpu?/topology.
Signed-off-by: Huacai Chen <chenhc@lemote.com>
Reviewed-by: Andreas Herrmann <andreas.herrmann@caviumnetworks.com>
Cc: John Crispin <john@phrozen.org>
Cc: Steven J. Hill <Steven.Hill@imgtec.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Cc: linux-mips@linux-mips.org
Cc: Fuxin Zhang <zhangfx@lemote.com>
Cc: Zhangjin Wu <wuzhangjin@gmail.com>
Patchwork: https://patchwork.linux-mips.org/patch/7184/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/include')
| -rw-r--r-- | arch/mips/include/asm/cpu-info.h | 1 | ||||
| -rw-r--r-- | arch/mips/include/asm/smp.h | 6 |
2 files changed, 7 insertions, 0 deletions
diff --git a/arch/mips/include/asm/cpu-info.h b/arch/mips/include/asm/cpu-info.h index a28e3de473d2..6690d7af0a03 100644 --- a/arch/mips/include/asm/cpu-info.h +++ b/arch/mips/include/asm/cpu-info.h @@ -61,6 +61,7 @@ struct cpuinfo_mips { struct cache_desc scache; /* Secondary cache */ struct cache_desc tcache; /* Tertiary/split secondary cache */ int srsets; /* Shadow register sets */ + int package;/* physical package number */ int core; /* physical core number */ #ifdef CONFIG_64BIT int vmbits; /* Virtual memory size in bits */ diff --git a/arch/mips/include/asm/smp.h b/arch/mips/include/asm/smp.h index b037334fca22..1e0f20a9cdda 100644 --- a/arch/mips/include/asm/smp.h +++ b/arch/mips/include/asm/smp.h @@ -22,6 +22,7 @@ extern int smp_num_siblings; extern cpumask_t cpu_sibling_map[]; +extern cpumask_t cpu_core_map[]; #define raw_smp_processor_id() (current_thread_info()->cpu) @@ -36,6 +37,11 @@ extern int __cpu_logical_map[NR_CPUS]; #define NO_PROC_ID (-1) +#define topology_physical_package_id(cpu) (cpu_data[cpu].package) +#define topology_core_id(cpu) (cpu_data[cpu].core) +#define topology_core_cpumask(cpu) (&cpu_core_map[cpu]) +#define topology_thread_cpumask(cpu) (&cpu_sibling_map[cpu]) + #define SMP_RESCHEDULE_YOURSELF 0x1 /* XXX braindead */ #define SMP_CALL_FUNCTION 0x2 /* Octeon - Tell another core to flush its icache */ |