powerpc/xmon: Add PowerISA v3.1 PMU SPRs

PowerISA v3.1 added three new perfromance
monitoring unit (PMU) speical purpose register (SPR).
They are Monitor Mode Control Register 3 (MMCR3),
Sampled Instruction Event Register 2 (SIER2),
Sampled Instruction Event Register 3 (SIER3).

Patch here adds a new dump function dump_310_sprs
to print these SPR values.

Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/1594996707-3727-7-git-send-email-atrajeev@linux.vnet.ibm.com

diff --git a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c
index d27944e..f08b2ef 100644 (file)
--- a/arch/powerpc/xmon/xmon.c
+++ b/arch/powerpc/xmon/xmon.c
@@ -2029,6 +2029,18 @@ static void dump_300_sprs(void)
 #endif
 }
 
+static void dump_310_sprs(void)
+{
+#ifdef CONFIG_PPC64
+       if (!cpu_has_feature(CPU_FTR_ARCH_31))
+               return;
+
+       printf("mmcr3  = %.16lx, sier2  = %.16lx, sier3  = %.16lx\n",
+               mfspr(SPRN_MMCR3), mfspr(SPRN_SIER2), mfspr(SPRN_SIER3));
+
+#endif
+}
+
 static void dump_one_spr(int spr, bool show_unimplemented)
 {
        unsigned long val;
@@ -2083,6 +2095,7 @@ static void super_regs(void)
                dump_206_sprs();
                dump_207_sprs();
                dump_300_sprs();
+               dump_310_sprs();
 
                return;
        }