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| author | Ananth N Mavinakayanahalli <ananth@in.ibm.com> | 2011-11-10 23:58:53 +0400 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2011-11-25 07:53:23 +0400 |
| commit | 595fe91447b03cb72c97f45bc5db30fd73b66b38 (patch) | |
| tree | 3dbfd08b962eb6215d17c105e6b743b6d920ebaf /arch/powerpc/kernel/sysfs.c | |
| parent | 184cd4a3b962a4769889615430eaf40076b97969 (diff) | |
| download | linux-595fe91447b03cb72c97f45bc5db30fd73b66b38.tar.xz | |
powerpc: Export PIR data through sysfs
On Fri, Nov 11, 2011 at 10:17:55AM +0530, Ananth N Mavinakayanahalli wrote:
> >
> > At this rate we're going to end up with no bits left for CPU features
> > way too quickly... Especially for something we only care about once at
> > boot time.
> >
> > Wouldn't CPU_FTR_PPCAS_ARCH_V2 be a good enough test ?
>
> /me checks Cell manuals... yes, that test would be good enough. I will
> cook up a patch to use this.
Here it is...
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/kernel/sysfs.c')
| -rw-r--r-- | arch/powerpc/kernel/sysfs.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/sysfs.c b/arch/powerpc/kernel/sysfs.c index ce035c1905f0..f579be552094 100644 --- a/arch/powerpc/kernel/sysfs.c +++ b/arch/powerpc/kernel/sysfs.c @@ -177,11 +177,13 @@ SYSFS_PMCSETUP(mmcra, SPRN_MMCRA); SYSFS_PMCSETUP(purr, SPRN_PURR); SYSFS_PMCSETUP(spurr, SPRN_SPURR); SYSFS_PMCSETUP(dscr, SPRN_DSCR); +SYSFS_PMCSETUP(pir, SPRN_PIR); static SYSDEV_ATTR(mmcra, 0600, show_mmcra, store_mmcra); static SYSDEV_ATTR(spurr, 0600, show_spurr, NULL); static SYSDEV_ATTR(dscr, 0600, show_dscr, store_dscr); static SYSDEV_ATTR(purr, 0600, show_purr, store_purr); +static SYSDEV_ATTR(pir, 0400, show_pir, NULL); unsigned long dscr_default = 0; EXPORT_SYMBOL(dscr_default); @@ -392,6 +394,9 @@ static void __cpuinit register_cpu_online(unsigned int cpu) if (cpu_has_feature(CPU_FTR_DSCR)) sysdev_create_file(s, &attr_dscr); + + if (cpu_has_feature(CPU_FTR_PPCAS_ARCH_V2)) + sysdev_create_file(s, &attr_pir); #endif /* CONFIG_PPC64 */ cacheinfo_cpu_online(cpu); @@ -462,6 +467,9 @@ static void unregister_cpu_online(unsigned int cpu) if (cpu_has_feature(CPU_FTR_DSCR)) sysdev_remove_file(s, &attr_dscr); + + if (cpu_has_feature(CPU_FTR_PPCAS_ARCH_V2)) + sysdev_remove_file(s, &attr_pir); #endif /* CONFIG_PPC64 */ cacheinfo_cpu_offline(cpu); |