[POWERPC] Add SPURR SPR to sysfs

Now we have a SPURR cpu feature bit, we can export it to userspace in
sysfs.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 8 insertions, 0 deletions

diff --git a/arch/powerpc/kernel/sysfs.c b/arch/powerpc/kernel/sysfs.c
index 22daba56c865..400ab2b946e7 100644
--- a/arch/powerpc/kernel/sysfs.c
+++ b/arch/powerpc/kernel/sysfs.c
@@ -181,6 +181,7 @@ SYSFS_PMCSETUP(pmc6, SPRN_PMC6);
 SYSFS_PMCSETUP(pmc7, SPRN_PMC7);
 SYSFS_PMCSETUP(pmc8, SPRN_PMC8);
 SYSFS_PMCSETUP(purr, SPRN_PURR);
+SYSFS_PMCSETUP(spurr, SPRN_SPURR);
 SYSFS_PMCSETUP(dscr, SPRN_DSCR);
 
 static SYSDEV_ATTR(mmcr0, 0600, show_mmcr0, store_mmcr0);
@@ -195,6 +196,7 @@ static SYSDEV_ATTR(pmc6, 0600, show_pmc6, store_pmc6);
 static SYSDEV_ATTR(pmc7, 0600, show_pmc7, store_pmc7);
 static SYSDEV_ATTR(pmc8, 0600, show_pmc8, store_pmc8);
 static SYSDEV_ATTR(purr, 0600, show_purr, NULL);
+static SYSDEV_ATTR(spurr, 0600, show_spurr, NULL);
 static SYSDEV_ATTR(dscr, 0600, show_dscr, store_dscr);
 
 static void register_cpu_online(unsigned int cpu)
@@ -234,6 +236,9 @@ static void register_cpu_online(unsigned int cpu)
         if (cpu_has_feature(CPU_FTR_PURR))
                 sysdev_create_file(s, &attr_purr);
 
+        if (cpu_has_feature(CPU_FTR_SPURR))
+                sysdev_create_file(s, &attr_spurr);
+
         if (cpu_has_feature(CPU_FTR_DSCR))
                 sysdev_create_file(s, &attr_dscr);
 }
@@ -278,6 +283,9 @@ static void unregister_cpu_online(unsigned int cpu)
         if (cpu_has_feature(CPU_FTR_PURR))
                 sysdev_remove_file(s, &attr_purr);
 
+        if (cpu_has_feature(CPU_FTR_SPURR))
+                sysdev_remove_file(s, &attr_spurr);
+
         if (cpu_has_feature(CPU_FTR_DSCR))
                 sysdev_remove_file(s, &attr_dscr);
 }