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authorHuacai Chen <chenhc@lemote.com>2014-06-26 07:41:26 +0400
committerRalf Baechle <ralf@linux-mips.org>2014-07-30 23:45:39 +0400
commitbda4584cd943d7bb6cf677a8d694700c1984cf3e (patch)
tree892cd5d6ad7a03cf2a111f51de9921b2f8c8cf3b /arch/mips/include/asm/smp.h
parent0f3f506b275517250ee0169ec075d5382967f5f6 (diff)
downloadlinux-bda4584cd943d7bb6cf677a8d694700c1984cf3e.tar.xz
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/asm/smp.h')
-rw-r--r--arch/mips/include/asm/smp.h6
1 files changed, 6 insertions, 0 deletions
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 */