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, 253 insertions, 0 deletions

diff --git a/drivers/reset/reset-aspeed.c b/drivers/reset/reset-aspeed.c
new file mode 100644
index 000000000..dd2f860a6
--- /dev/null
+++ b/drivers/reset/reset-aspeed.c
@@ -0,0 +1,253 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (c) 2024 ASPEED Technology Inc.
+ */
+
+#include <linux/auxiliary_bus.h>
+#include <linux/cleanup.h>
+#include <linux/device.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/reset-controller.h>
+#include <linux/slab.h>
+
+#include <dt-bindings/reset/aspeed,ast2700-scu.h>
+
+#define SCU0_RESET_CTRL1 0x200
+#define SCU0_RESET_CTRL2 0x220
+#define SCU1_RESET_CTRL1 0x200
+#define SCU1_RESET_CTRL2 0x220
+#define SCU1_PCIE3_CTRL 0x908
+
+struct ast2700_reset_signal {
+	bool dedicated_clr; /* dedicated reset clr offset */
+	u32 offset, bit;
+};
+
+struct aspeed_reset_info {
+	unsigned int nr_resets;
+	const struct ast2700_reset_signal *signal;
+};
+
+struct aspeed_reset {
+	struct reset_controller_dev rcdev;
+	struct aspeed_reset_info *info;
+	spinlock_t lock; /* Protect read-modify-write cycle */
+	void __iomem *base;
+};
+
+static const struct ast2700_reset_signal ast2700_reset0_signals[] = {
+	[SCU0_RESET_SDRAM] = { true, SCU0_RESET_CTRL1, BIT(0) },
+	[SCU0_RESET_DDRPHY] = { true, SCU0_RESET_CTRL1, BIT(1) },
+	[SCU0_RESET_RSA] = { true, SCU0_RESET_CTRL1, BIT(2) },
+	[SCU0_RESET_SHA3] = { true, SCU0_RESET_CTRL1, BIT(3) },
+	[SCU0_RESET_HACE] = { true, SCU0_RESET_CTRL1, BIT(4) },
+	[SCU0_RESET_SOC] = { true, SCU0_RESET_CTRL1, BIT(5) },
+	[SCU0_RESET_VIDEO] = { true, SCU0_RESET_CTRL1, BIT(6) },
+	[SCU0_RESET_2D] = { true, SCU0_RESET_CTRL1, BIT(7) },
+	[SCU0_RESET_PCIS] = { true, SCU0_RESET_CTRL1, BIT(8) },
+	[SCU0_RESET_RVAS0] = { true, SCU0_RESET_CTRL1, BIT(9) },
+	[SCU0_RESET_RVAS1] = { true, SCU0_RESET_CTRL1, BIT(10) },
+	[SCU0_RESET_SM3] = { true, SCU0_RESET_CTRL1, BIT(11) },
+	[SCU0_RESET_SM4] = { true, SCU0_RESET_CTRL1, BIT(12) },
+	[SCU0_RESET_CRT0] = { true, SCU0_RESET_CTRL1, BIT(13) },
+	[SCU0_RESET_ECC] = { true, SCU0_RESET_CTRL1, BIT(14) },
+	[SCU0_RESET_DP_PCI] = { true, SCU0_RESET_CTRL1, BIT(15) },
+	[SCU0_RESET_UFS] = { true, SCU0_RESET_CTRL1, BIT(16) },
+	[SCU0_RESET_EMMC] = { true, SCU0_RESET_CTRL1, BIT(17) },
+	[SCU0_RESET_PCIE1RST] = { true, SCU0_RESET_CTRL1, BIT(18) },
+	[SCU0_RESET_PCIE1RSTOE] = { true, SCU0_RESET_CTRL1, BIT(19) },
+	[SCU0_RESET_PCIE0RST] = { true, SCU0_RESET_CTRL1, BIT(20) },
+	[SCU0_RESET_PCIE0RSTOE] = { true, SCU0_RESET_CTRL1, BIT(21) },
+	[SCU0_RESET_JTAG] = { true, SCU0_RESET_CTRL1, BIT(22) },
+	[SCU0_RESET_MCTP0] = { true, SCU0_RESET_CTRL1, BIT(23) },
+	[SCU0_RESET_MCTP1] = { true, SCU0_RESET_CTRL1, BIT(24) },
+	[SCU0_RESET_XDMA0] = { true, SCU0_RESET_CTRL1, BIT(25) },
+	[SCU0_RESET_XDMA1] = { true, SCU0_RESET_CTRL1, BIT(26) },
+	[SCU0_RESET_H2X1] = { true, SCU0_RESET_CTRL1, BIT(27) },
+	[SCU0_RESET_DP] = { true, SCU0_RESET_CTRL1, BIT(28) },
+	[SCU0_RESET_DP_MCU] = { true, SCU0_RESET_CTRL1, BIT(29) },
+	[SCU0_RESET_SSP] = { true, SCU0_RESET_CTRL1, BIT(30) },
+	[SCU0_RESET_H2X0] = { true, SCU0_RESET_CTRL1, BIT(31) },
+	[SCU0_RESET_PORTA_VHUB] = { true, SCU0_RESET_CTRL2, BIT(0) },
+	[SCU0_RESET_PORTA_PHY3] = { true, SCU0_RESET_CTRL2, BIT(1) },
+	[SCU0_RESET_PORTA_XHCI] = { true, SCU0_RESET_CTRL2, BIT(2) },
+	[SCU0_RESET_PORTB_VHUB] = { true, SCU0_RESET_CTRL2, BIT(3) },
+	[SCU0_RESET_PORTB_PHY3] = { true, SCU0_RESET_CTRL2, BIT(4) },
+	[SCU0_RESET_PORTB_XHCI] = { true, SCU0_RESET_CTRL2, BIT(5) },
+	[SCU0_RESET_PORTA_VHUB_EHCI] = { true, SCU0_RESET_CTRL2, BIT(6) },
+	[SCU0_RESET_PORTB_VHUB_EHCI] = { true, SCU0_RESET_CTRL2, BIT(7) },
+	[SCU0_RESET_UHCI] = { true, SCU0_RESET_CTRL2, BIT(8) },
+	[SCU0_RESET_TSP] = { true, SCU0_RESET_CTRL2, BIT(9) },
+	[SCU0_RESET_E2M0] = { true, SCU0_RESET_CTRL2, BIT(10) },
+	[SCU0_RESET_E2M1] = { true, SCU0_RESET_CTRL2, BIT(11) },
+	[SCU0_RESET_VLINK] = { true, SCU0_RESET_CTRL2, BIT(12) },
+};
+
+static const struct ast2700_reset_signal ast2700_reset1_signals[] = {
+	[SCU1_RESET_LPC0] = { true, SCU1_RESET_CTRL1, BIT(0) },
+	[SCU1_RESET_LPC1] = { true, SCU1_RESET_CTRL1, BIT(1) },
+	[SCU1_RESET_MII] = { true, SCU1_RESET_CTRL1, BIT(2) },
+	[SCU1_RESET_PECI] = { true, SCU1_RESET_CTRL1, BIT(3) },
+	[SCU1_RESET_PWM] = { true, SCU1_RESET_CTRL1, BIT(4) },
+	[SCU1_RESET_MAC0] = { true, SCU1_RESET_CTRL1, BIT(5) },
+	[SCU1_RESET_MAC1] = { true, SCU1_RESET_CTRL1, BIT(6) },
+	[SCU1_RESET_MAC2] = { true, SCU1_RESET_CTRL1, BIT(7) },
+	[SCU1_RESET_ADC] = { true, SCU1_RESET_CTRL1, BIT(8) },
+	[SCU1_RESET_SD] = { true, SCU1_RESET_CTRL1, BIT(9) },
+	[SCU1_RESET_ESPI0] = { true, SCU1_RESET_CTRL1, BIT(10) },
+	[SCU1_RESET_ESPI1] = { true, SCU1_RESET_CTRL1, BIT(11) },
+	[SCU1_RESET_JTAG1] = { true, SCU1_RESET_CTRL1, BIT(12) },
+	[SCU1_RESET_SPI0] = { true, SCU1_RESET_CTRL1, BIT(13) },
+	[SCU1_RESET_SPI1] = { true, SCU1_RESET_CTRL1, BIT(14) },
+	[SCU1_RESET_SPI2] = { true, SCU1_RESET_CTRL1, BIT(15) },
+	[SCU1_RESET_I3C0] = { true, SCU1_RESET_CTRL1, BIT(16) },
+	[SCU1_RESET_I3C1] = { true, SCU1_RESET_CTRL1, BIT(17) },
+	[SCU1_RESET_I3C2] = { true, SCU1_RESET_CTRL1, BIT(18) },
+	[SCU1_RESET_I3C3] = { true, SCU1_RESET_CTRL1, BIT(19) },
+	[SCU1_RESET_I3C4] = { true, SCU1_RESET_CTRL1, BIT(20) },
+	[SCU1_RESET_I3C5] = { true, SCU1_RESET_CTRL1, BIT(21) },
+	[SCU1_RESET_I3C6] = { true, SCU1_RESET_CTRL1, BIT(22) },
+	[SCU1_RESET_I3C7] = { true, SCU1_RESET_CTRL1, BIT(23) },
+	[SCU1_RESET_I3C8] = { true, SCU1_RESET_CTRL1, BIT(24) },
+	[SCU1_RESET_I3C9] = { true, SCU1_RESET_CTRL1, BIT(25) },
+	[SCU1_RESET_I3C10] = { true, SCU1_RESET_CTRL1, BIT(26) },
+	[SCU1_RESET_I3C11] = { true, SCU1_RESET_CTRL1, BIT(27) },
+	[SCU1_RESET_I3C12] = { true, SCU1_RESET_CTRL1, BIT(28) },
+	[SCU1_RESET_I3C13] = { true, SCU1_RESET_CTRL1, BIT(29) },
+	[SCU1_RESET_I3C14] = { true, SCU1_RESET_CTRL1, BIT(30) },
+	[SCU1_RESET_I3C15] = { true, SCU1_RESET_CTRL1, BIT(31) },
+	[SCU1_RESET_MCU0] = { true, SCU1_RESET_CTRL2, BIT(0) },
+	[SCU1_RESET_MCU1] = { true, SCU1_RESET_CTRL2, BIT(1) },
+	[SCU1_RESET_H2A_SPI1] = { true, SCU1_RESET_CTRL2, BIT(2) },
+	[SCU1_RESET_H2A_SPI2] = { true, SCU1_RESET_CTRL2, BIT(3) },
+	[SCU1_RESET_UART0] = { true, SCU1_RESET_CTRL2, BIT(4) },
+	[SCU1_RESET_UART1] = { true, SCU1_RESET_CTRL2, BIT(5) },
+	[SCU1_RESET_UART2] = { true, SCU1_RESET_CTRL2, BIT(6) },
+	[SCU1_RESET_UART3] = { true, SCU1_RESET_CTRL2, BIT(7) },
+	[SCU1_RESET_I2C_FILTER] = { true, SCU1_RESET_CTRL2, BIT(8) },
+	[SCU1_RESET_CALIPTRA] = { true, SCU1_RESET_CTRL2, BIT(9) },
+	[SCU1_RESET_XDMA] = { true, SCU1_RESET_CTRL2, BIT(10) },
+	[SCU1_RESET_FSI] = { true, SCU1_RESET_CTRL2, BIT(12) },
+	[SCU1_RESET_CAN] = { true, SCU1_RESET_CTRL2, BIT(13) },
+	[SCU1_RESET_MCTP] = { true, SCU1_RESET_CTRL2, BIT(14) },
+	[SCU1_RESET_I2C] = { true, SCU1_RESET_CTRL2, BIT(15) },
+	[SCU1_RESET_UART6] = { true, SCU1_RESET_CTRL2, BIT(16) },
+	[SCU1_RESET_UART7] = { true, SCU1_RESET_CTRL2, BIT(17) },
+	[SCU1_RESET_UART8] = { true, SCU1_RESET_CTRL2, BIT(18) },
+	[SCU1_RESET_UART9] = { true, SCU1_RESET_CTRL2, BIT(19) },
+	[SCU1_RESET_LTPI0] = { true, SCU1_RESET_CTRL2, BIT(20) },
+	[SCU1_RESET_VGAL] = { true, SCU1_RESET_CTRL2, BIT(21) },
+	[SCU1_RESET_LTPI1] = { true, SCU1_RESET_CTRL2, BIT(22) },
+	[SCU1_RESET_ACE] = { true, SCU1_RESET_CTRL2, BIT(23) },
+	[SCU1_RESET_E2M] = { true, SCU1_RESET_CTRL2, BIT(24) },
+	[SCU1_RESET_UHCI] = { true, SCU1_RESET_CTRL2, BIT(25) },
+	[SCU1_RESET_PORTC_USB2UART] = { true, SCU1_RESET_CTRL2, BIT(26) },
+	[SCU1_RESET_PORTC_VHUB_EHCI] = { true, SCU1_RESET_CTRL2, BIT(27) },
+	[SCU1_RESET_PORTD_USB2UART] = { true, SCU1_RESET_CTRL2, BIT(28) },
+	[SCU1_RESET_PORTD_VHUB_EHCI] = { true, SCU1_RESET_CTRL2, BIT(29) },
+	[SCU1_RESET_H2X] = { true, SCU1_RESET_CTRL2, BIT(30) },
+	[SCU1_RESET_I3CDMA] = { true, SCU1_RESET_CTRL2, BIT(31) },
+	[SCU1_RESET_PCIE2RST] = { false, SCU1_PCIE3_CTRL, BIT(0) },
+};
+
+static inline struct aspeed_reset *to_aspeed_reset(struct reset_controller_dev *rcdev)
+{
+	return container_of(rcdev, struct aspeed_reset, rcdev);
+}
+
+static int aspeed_reset_assert(struct reset_controller_dev *rcdev, unsigned long id)
+{
+	struct aspeed_reset *rc = to_aspeed_reset(rcdev);
+	void __iomem *reg_offset = rc->base + rc->info->signal[id].offset;
+
+	if (rc->info->signal[id].dedicated_clr) {
+		writel(rc->info->signal[id].bit, reg_offset);
+	} else {
+		guard(spinlock_irqsave)(&rc->lock);
+		writel(readl(reg_offset) & ~rc->info->signal[id].bit, reg_offset);
+	}
+
+	return 0;
+}
+
+static int aspeed_reset_deassert(struct reset_controller_dev *rcdev, unsigned long id)
+{
+	struct aspeed_reset *rc = to_aspeed_reset(rcdev);
+	void __iomem *reg_offset = rc->base + rc->info->signal[id].offset;
+
+	if (rc->info->signal[id].dedicated_clr) {
+		writel(rc->info->signal[id].bit, reg_offset + 0x04);
+	} else {
+		guard(spinlock_irqsave)(&rc->lock);
+		writel(readl(reg_offset) | rc->info->signal[id].bit, reg_offset);
+	}
+
+	return 0;
+}
+
+static int aspeed_reset_status(struct reset_controller_dev *rcdev, unsigned long id)
+{
+	struct aspeed_reset *rc = to_aspeed_reset(rcdev);
+	void __iomem *reg_offset = rc->base + rc->info->signal[id].offset;
+
+	return (readl(reg_offset) & rc->info->signal[id].bit) ? 1 : 0;
+}
+
+static const struct reset_control_ops aspeed_reset_ops = {
+	.assert = aspeed_reset_assert,
+	.deassert = aspeed_reset_deassert,
+	.status = aspeed_reset_status,
+};
+
+static int aspeed_reset_probe(struct auxiliary_device *adev,
+			      const struct auxiliary_device_id *id)
+{
+	struct aspeed_reset *reset;
+	struct device *dev = &adev->dev;
+
+	reset = devm_kzalloc(dev, sizeof(*reset), GFP_KERNEL);
+	if (!reset)
+		return -ENOMEM;
+
+	spin_lock_init(&reset->lock);
+
+	reset->info = (struct aspeed_reset_info *)id->driver_data;
+	reset->rcdev.owner = THIS_MODULE;
+	reset->rcdev.nr_resets = reset->info->nr_resets;
+	reset->rcdev.ops = &aspeed_reset_ops;
+	reset->rcdev.of_node = dev->parent->of_node;
+	reset->rcdev.dev = dev;
+	reset->rcdev.of_reset_n_cells = 1;
+	reset->base = (void __iomem *)adev->dev.platform_data;
+
+	return devm_reset_controller_register(dev, &reset->rcdev);
+}
+
+static const struct aspeed_reset_info ast2700_reset0_info = {
+	.nr_resets = ARRAY_SIZE(ast2700_reset0_signals),
+	.signal = ast2700_reset0_signals,
+};
+
+static const struct aspeed_reset_info ast2700_reset1_info = {
+	.nr_resets = ARRAY_SIZE(ast2700_reset1_signals),
+	.signal = ast2700_reset1_signals,
+};
+
+static const struct auxiliary_device_id aspeed_reset_ids[] = {
+	{ .name = "clk_ast2700.reset0", .driver_data = (kernel_ulong_t)&ast2700_reset0_info },
+	{ .name = "clk_ast2700.reset1", .driver_data = (kernel_ulong_t)&ast2700_reset1_info },
+	{ }
+};
+MODULE_DEVICE_TABLE(auxiliary, aspeed_reset_ids);
+
+static struct auxiliary_driver aspeed_reset_driver = {
+	.probe		= aspeed_reset_probe,
+	.id_table	= aspeed_reset_ids,
+};
+
+module_auxiliary_driver(aspeed_reset_driver);
+
+MODULE_AUTHOR("Ryan Chen <ryan_chen@aspeedtech.com>");
+MODULE_DESCRIPTION("ASPEED SoC Reset Controller Driver");
+MODULE_LICENSE("GPL");