scftorture: Count single_rpc offline failures in statistics outputgrafted

scf_torture_stats_print() aggregates each invoker thread's counters
into a local scf_statistics structure before printing, but the
n_single_rpc_ofl field is missing from the aggregation loop.  As a
result, the "single_rpc_ofl" value printed in the statistics line is
always zero, even when smp_call_function_single() invocations for the
RPC test have failed due to offline CPUs and been counted by the
invoker threads.

Add the missing accumulation so that the printed value reflects the
actual counts.

Signed-off-by: Joel Fernandes <joelagnelf@nvidia.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>

1 files changed, 83 insertions, 0 deletions

diff --git a/include/memory/renesas-rpc-if.h b/include/memory/renesas-rpc-if.h
new file mode 100644
index 000000000..53663c4e5
--- /dev/null
+++ b/include/memory/renesas-rpc-if.h
@@ -0,0 +1,83 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Renesas RPC-IF core driver
+ *
+ * Copyright (C) 2018~2019 Renesas Solutions Corp.
+ * Copyright (C) 2019 Macronix International Co., Ltd.
+ * Copyright (C) 2019-2020 Cogent Embedded, Inc.
+ */
+
+#ifndef __RENESAS_RPC_IF_H
+#define __RENESAS_RPC_IF_H
+
+#include <linux/pm_runtime.h>
+#include <linux/types.h>
+
+enum rpcif_data_dir {
+	RPCIF_NO_DATA,
+	RPCIF_DATA_IN,
+	RPCIF_DATA_OUT,
+};
+
+struct rpcif_op {
+	struct {
+		u8 buswidth;
+		u8 opcode;
+		bool ddr;
+	} cmd, ocmd;
+
+	struct {
+		u8 nbytes;
+		u8 buswidth;
+		bool ddr;
+		u64 val;
+	} addr;
+
+	struct {
+		u8 ncycles;
+		u8 buswidth;
+	} dummy;
+
+	struct {
+		u8 nbytes;
+		u8 buswidth;
+		bool ddr;
+		u32 val;
+	} option;
+
+	struct {
+		u8 buswidth;
+		unsigned int nbytes;
+		enum rpcif_data_dir dir;
+		bool ddr;
+		union {
+			void *in;
+			const void *out;
+		} buf;
+	} data;
+};
+
+enum rpcif_type {
+	RPCIF_RCAR_GEN3,
+	RPCIF_RCAR_GEN4,
+	RPCIF_RZ_G2L,
+	XSPI_RZ_G3E,
+};
+
+struct rpcif {
+	struct device *dev;
+	void __iomem *dirmap;
+	size_t size;
+	bool xspi;
+};
+
+int rpcif_sw_init(struct rpcif *rpc, struct device *dev);
+int rpcif_hw_init(struct device *dev, bool hyperflash);
+void rpcif_prepare(struct device *dev, const struct rpcif_op *op, u64 *offs,
+		   size_t *len);
+int rpcif_manual_xfer(struct device *dev);
+ssize_t rpcif_dirmap_read(struct device *dev, u64 offs, size_t len, void *buf);
+ssize_t xspi_dirmap_write(struct device *dev, u64 offs, size_t len,
+			  const void *buf);
+
+#endif // __RENESAS_RPC_IF_H