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authorRalf Baechle <ralf@linux-mips.org>2013-10-16 19:10:07 +0400
committerRalf Baechle <ralf@linux-mips.org>2014-03-31 20:17:12 +0400
commitd6d3c9afaab47418ab2d7f874fb8aeac1f067104 (patch)
tree9f3b27fad7b722ab15144e6a044c5d771d3e3d59 /arch/mips/include/asm/cpu-info.h
parenta2bec0784465d3e30eadc20b49c779fa77d42dad (diff)
downloadlinux-d6d3c9afaab47418ab2d7f874fb8aeac1f067104.tar.xz
MIPS: MT: proc: Add support for printing VPE and TC ids
And there are more CPUs or configurations that want to provide special per-CPU information in /proc/cpuinfo. So I think there needs to be a hook mechanism, such as a notifier. This is a first cut only; I need to think about what sort of looking the notifier needs to have. But I'd appreciate testing on MT hardware! Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Cc: Markos Chandras <markos.chandras@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/6066/
Diffstat (limited to 'arch/mips/include/asm/cpu-info.h')
-rw-r--r--arch/mips/include/asm/cpu-info.h21
1 files changed, 21 insertions, 0 deletions
diff --git a/arch/mips/include/asm/cpu-info.h b/arch/mips/include/asm/cpu-info.h
index 49953f717334..dc2135be2a3a 100644
--- a/arch/mips/include/asm/cpu-info.h
+++ b/arch/mips/include/asm/cpu-info.h
@@ -96,6 +96,27 @@ extern void cpu_report(void);
extern const char *__cpu_name[];
#define cpu_name_string() __cpu_name[smp_processor_id()]
+struct seq_file;
+struct notifier_block;
+
+extern int register_proc_cpuinfo_notifier(struct notifier_block *nb);
+extern int proc_cpuinfo_notifier_call_chain(unsigned long val, void *v);
+
+#define proc_cpuinfo_notifier(fn, pri) \
+({ \
+ static struct notifier_block fn##_nb = { \
+ .notifier_call = fn, \
+ .priority = pri \
+ }; \
+ \
+ register_proc_cpuinfo_notifier(&fn##_nb); \
+})
+
+struct proc_cpuinfo_notifier_args {
+ struct seq_file *m;
+ unsigned long n;
+};
+
#if defined(CONFIG_MIPS_MT_SMP) || defined(CONFIG_MIPS_MT_SMTC)
# define cpu_vpe_id(cpuinfo) ((cpuinfo)->vpe_id)
#else