sparc64: Add performance counter hypervisor calls for sun4v.
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc64/kernel/hvcalls.S b/arch/sparc64/kernel/hvcalls.S
index e066269..8a5f35f 100644
--- a/arch/sparc64/kernel/hvcalls.S
+++ b/arch/sparc64/kernel/hvcalls.S
@@ -766,3 +766,35 @@
retl
nop
ENDPROC(sun4v_mmu_demap_all)
+
+ENTRY(sun4v_niagara_getperf)
+ mov %o0, %o4
+ mov HV_FAST_GET_PERFREG, %o5
+ ta HV_FAST_TRAP
+ stx %o1, [%o4]
+ retl
+ nop
+ENDPROC(sun4v_niagara_getperf)
+
+ENTRY(sun4v_niagara_setperf)
+ mov HV_FAST_SET_PERFREG, %o5
+ ta HV_FAST_TRAP
+ retl
+ nop
+ENDPROC(sun4v_niagara_setperf)
+
+ENTRY(sun4v_niagara2_getperf)
+ mov %o0, %o4
+ mov HV_FAST_N2_GET_PERFREG, %o5
+ ta HV_FAST_TRAP
+ stx %o1, [%o4]
+ retl
+ nop
+ENDPROC(sun4v_niagara2_getperf)
+
+ENTRY(sun4v_niagara2_setperf)
+ mov HV_FAST_N2_SET_PERFREG, %o5
+ ta HV_FAST_TRAP
+ retl
+ nop
+ENDPROC(sun4v_niagara2_setperf)
diff --git a/arch/sparc64/kernel/sparc64_ksyms.c b/arch/sparc64/kernel/sparc64_ksyms.c
index 30bba8b..c450825 100644
--- a/arch/sparc64/kernel/sparc64_ksyms.c
+++ b/arch/sparc64/kernel/sparc64_ksyms.c
@@ -49,6 +49,7 @@
#include <asm/timer.h>
#include <asm/cpudata.h>
#include <asm/ftrace.h>
+#include <asm/hypervisor.h>
struct poll {
int fd;
@@ -148,6 +149,11 @@
EXPORT_SYMBOL(__flush_dcache_range);
#endif
+EXPORT_SYMBOL(sun4v_niagara_getperf);
+EXPORT_SYMBOL(sun4v_niagara_setperf);
+EXPORT_SYMBOL(sun4v_niagara2_getperf);
+EXPORT_SYMBOL(sun4v_niagara2_setperf);
+
#ifdef CONFIG_SUN_AUXIO
EXPORT_SYMBOL(auxio_set_led);
EXPORT_SYMBOL(auxio_set_lte);