From 34ff636f322c6d5e4f0a52338fa63a7dff09a495 Mon Sep 17 00:00:00 2001 From: Joel Fernandes Date: Sat, 18 Jul 2026 13:15:36 -0400 Subject: scftorture: Count single_rpc offline failures in statistics output 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 Signed-off-by: Paul E. McKenney --- drivers/soc/gemini/Makefile | 2 ++ drivers/soc/gemini/soc-gemini.c | 71 +++++++++++++++++++++++++++++++++++++++++ 2 files changed, 73 insertions(+) create mode 100644 drivers/soc/gemini/Makefile create mode 100644 drivers/soc/gemini/soc-gemini.c (limited to 'drivers/soc/gemini') diff --git a/drivers/soc/gemini/Makefile b/drivers/soc/gemini/Makefile new file mode 100644 index 000000000..8cbd1e45d --- /dev/null +++ b/drivers/soc/gemini/Makefile @@ -0,0 +1,2 @@ +# SPDX-License-Identifier: GPL-2.0 +obj-y += soc-gemini.o diff --git a/drivers/soc/gemini/soc-gemini.c b/drivers/soc/gemini/soc-gemini.c new file mode 100644 index 000000000..642b96c91 --- /dev/null +++ b/drivers/soc/gemini/soc-gemini.c @@ -0,0 +1,71 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2017 Linaro Ltd. + * + * Author: Linus Walleij + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2, as + * published by the Free Software Foundation. + * + */ +#include +#include +#include +#include +#include + +#define GLOBAL_WORD_ID 0x00 +#define GEMINI_GLOBAL_ARB1_CTRL 0x2c +#define GEMINI_ARB1_BURST_MASK GENMASK(21, 16) +#define GEMINI_ARB1_BURST_SHIFT 16 +/* These all define the priority on the BUS2 backplane */ +#define GEMINI_ARB1_PRIO_MASK GENMASK(9, 0) +#define GEMINI_ARB1_DMAC_HIGH_PRIO BIT(0) +#define GEMINI_ARB1_IDE_HIGH_PRIO BIT(1) +#define GEMINI_ARB1_RAID_HIGH_PRIO BIT(2) +#define GEMINI_ARB1_SECURITY_HIGH_PRIO BIT(3) +#define GEMINI_ARB1_GMAC0_HIGH_PRIO BIT(4) +#define GEMINI_ARB1_GMAC1_HIGH_PRIO BIT(5) +#define GEMINI_ARB1_USB0_HIGH_PRIO BIT(6) +#define GEMINI_ARB1_USB1_HIGH_PRIO BIT(7) +#define GEMINI_ARB1_PCI_HIGH_PRIO BIT(8) +#define GEMINI_ARB1_TVE_HIGH_PRIO BIT(9) + +#define GEMINI_DEFAULT_BURST_SIZE 0x20 +#define GEMINI_DEFAULT_PRIO (GEMINI_ARB1_GMAC0_HIGH_PRIO | \ + GEMINI_ARB1_GMAC1_HIGH_PRIO) + +static int __init gemini_soc_init(void) +{ + struct regmap *map; + u32 rev; + u32 val; + int ret; + + /* Multiplatform guard, only proceed on Gemini */ + if (!of_machine_is_compatible("cortina,gemini")) + return 0; + + map = syscon_regmap_lookup_by_compatible("cortina,gemini-syscon"); + if (IS_ERR(map)) + return PTR_ERR(map); + ret = regmap_read(map, GLOBAL_WORD_ID, &rev); + if (ret) + return ret; + + val = (GEMINI_DEFAULT_BURST_SIZE << GEMINI_ARB1_BURST_SHIFT) | + GEMINI_DEFAULT_PRIO; + + /* Set up system arbitration */ + regmap_update_bits(map, + GEMINI_GLOBAL_ARB1_CTRL, + GEMINI_ARB1_BURST_MASK | GEMINI_ARB1_PRIO_MASK, + val); + + pr_info("Gemini SoC %04x revision %02x, set arbitration %08x\n", + rev >> 8, rev & 0xff, val); + + return 0; +} +subsys_initcall(gemini_soc_init); -- cgit v1.3.1