sparc64: Add performance counter hypervisor calls for sun4v.

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 24 insertions, 0 deletions

diff --git a/arch/sparc/include/asm/hypervisor.h b/arch/sparc/include/asm/hypervisor.h
index 109ae24ba24..bafe5a631b6 100644
--- a/arch/sparc/include/asm/hypervisor.h
+++ b/arch/sparc/include/asm/hypervisor.h
@@ -2713,6 +2713,30 @@ extern unsigned long sun4v_ldc_revoke(unsigned long channel,
  */
 #define HV_FAST_SET_PERFREG             0x101
 
+#define HV_N2_PERF_SPARC_CTL            0x0
+#define HV_N2_PERF_DRAM_CTL0            0x1
+#define HV_N2_PERF_DRAM_CNT0            0x2
+#define HV_N2_PERF_DRAM_CTL1            0x3
+#define HV_N2_PERF_DRAM_CNT1            0x4
+#define HV_N2_PERF_DRAM_CTL2            0x5
+#define HV_N2_PERF_DRAM_CNT2            0x6
+#define HV_N2_PERF_DRAM_CTL3            0x7
+#define HV_N2_PERF_DRAM_CNT3            0x8
+
+#define HV_FAST_N2_GET_PERFREG          0x104
+#define HV_FAST_N2_SET_PERFREG          0x105
+
+#ifndef __ASSEMBLY__
+extern unsigned long sun4v_niagara_getperf(unsigned long reg,
+                                           unsigned long *val);
+extern unsigned long sun4v_niagara_setperf(unsigned long reg,
+                                           unsigned long val);
+extern unsigned long sun4v_niagara2_getperf(unsigned long reg,
+                                            unsigned long *val);
+extern unsigned long sun4v_niagara2_setperf(unsigned long reg,
+                                            unsigned long val);
+#endif
+
 /* MMU statistics services.
  *
  * The hypervisor maintains MMU statistics and privileged code provides