Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

4 files changed, 383 insertions, 0 deletions

diff --git a/tools/pci/Build b/tools/pci/Build
new file mode 100644
index 000000000..c375aea21
--- /dev/null
+++ b/tools/pci/Build
@@ -0,0 +1 @@
+pcitest-y += pcitest.o
diff --git a/tools/pci/Makefile b/tools/pci/Makefile
new file mode 100644
index 000000000..57744778b
--- /dev/null
+++ b/tools/pci/Makefile
@@ -0,0 +1,58 @@
+# SPDX-License-Identifier: GPL-2.0
+include ../scripts/Makefile.include
+
+bindir ?= /usr/bin
+
+ifeq ($(srctree),)
+srctree := $(patsubst %/,%,$(dir $(CURDIR)))
+srctree := $(patsubst %/,%,$(dir $(srctree)))
+endif
+
+# Do not use make's built-in rules
+# (this improves performance and avoids hard-to-debug behaviour);
+MAKEFLAGS += -r
+
+CFLAGS += -O2 -Wall -g -D_GNU_SOURCE -I$(OUTPUT)include
+
+ALL_TARGETS := pcitest
+ALL_PROGRAMS := $(patsubst %,$(OUTPUT)%,$(ALL_TARGETS))
+
+SCRIPTS := pcitest.sh
+
+all: $(ALL_PROGRAMS)
+
+export srctree OUTPUT CC LD CFLAGS
+include $(srctree)/tools/build/Makefile.include
+
+#
+# We need the following to be outside of kernel tree
+#
+$(OUTPUT)include/linux/: ../../include/uapi/linux/
+	mkdir -p $(OUTPUT)include/linux/ 2>&1 || true
+	ln -sf $(CURDIR)/../../include/uapi/linux/pcitest.h $@
+
+prepare: $(OUTPUT)include/linux/
+
+PCITEST_IN := $(OUTPUT)pcitest-in.o
+$(PCITEST_IN): prepare FORCE
+	$(Q)$(MAKE) $(build)=pcitest
+$(OUTPUT)pcitest: $(PCITEST_IN)
+	$(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) $< -o $@
+
+clean:
+	rm -f $(ALL_PROGRAMS)
+	rm -rf $(OUTPUT)include/
+	find $(or $(OUTPUT),.) -name '*.o' -delete -o -name '\.*.d' -delete
+
+install: $(ALL_PROGRAMS)
+	install -d -m 755 $(DESTDIR)$(bindir);		\
+	for program in $(ALL_PROGRAMS); do		\
+		install $$program $(DESTDIR)$(bindir);	\
+	done;						\
+	for script in $(SCRIPTS); do			\
+		install $$script $(DESTDIR)$(bindir);	\
+	done
+
+FORCE:
+
+.PHONY: all install clean FORCE prepare
diff --git a/tools/pci/pcitest.c b/tools/pci/pcitest.c
new file mode 100644
index 000000000..441b54234
--- /dev/null
+++ b/tools/pci/pcitest.c
@@ -0,0 +1,252 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/**
+ * Userspace PCI Endpoint Test Module
+ *
+ * Copyright (C) 2017 Texas Instruments
+ * Author: Kishon Vijay Abraham I <kishon@ti.com>
+ */
+
+#include <errno.h>
+#include <fcntl.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/ioctl.h>
+#include <unistd.h>
+
+#include <linux/pcitest.h>
+
+#define BILLION 1E9
+
+static char *result[] = { "NOT OKAY", "OKAY" };
+static char *irq[] = { "LEGACY", "MSI", "MSI-X" };
+
+struct pci_test {
+	char		*device;
+	char		barnum;
+	bool		legacyirq;
+	unsigned int	msinum;
+	unsigned int	msixnum;
+	int		irqtype;
+	bool		set_irqtype;
+	bool		get_irqtype;
+	bool		clear_irq;
+	bool		read;
+	bool		write;
+	bool		copy;
+	unsigned long	size;
+	bool		use_dma;
+};
+
+static int run_test(struct pci_test *test)
+{
+	struct pci_endpoint_test_xfer_param param = {};
+	int ret = -EINVAL;
+	int fd;
+
+	fd = open(test->device, O_RDWR);
+	if (fd < 0) {
+		perror("can't open PCI Endpoint Test device");
+		return -ENODEV;
+	}
+
+	if (test->barnum >= 0 && test->barnum <= 5) {
+		ret = ioctl(fd, PCITEST_BAR, test->barnum);
+		fprintf(stdout, "BAR%d:\t\t", test->barnum);
+		if (ret < 0)
+			fprintf(stdout, "TEST FAILED\n");
+		else
+			fprintf(stdout, "%s\n", result[ret]);
+	}
+
+	if (test->set_irqtype) {
+		ret = ioctl(fd, PCITEST_SET_IRQTYPE, test->irqtype);
+		fprintf(stdout, "SET IRQ TYPE TO %s:\t\t", irq[test->irqtype]);
+		if (ret < 0)
+			fprintf(stdout, "FAILED\n");
+		else
+			fprintf(stdout, "%s\n", result[ret]);
+	}
+
+	if (test->get_irqtype) {
+		ret = ioctl(fd, PCITEST_GET_IRQTYPE);
+		fprintf(stdout, "GET IRQ TYPE:\t\t");
+		if (ret < 0)
+			fprintf(stdout, "FAILED\n");
+		else
+			fprintf(stdout, "%s\n", irq[ret]);
+	}
+
+	if (test->clear_irq) {
+		ret = ioctl(fd, PCITEST_CLEAR_IRQ);
+		fprintf(stdout, "CLEAR IRQ:\t\t");
+		if (ret < 0)
+			fprintf(stdout, "FAILED\n");
+		else
+			fprintf(stdout, "%s\n", result[ret]);
+	}
+
+	if (test->legacyirq) {
+		ret = ioctl(fd, PCITEST_LEGACY_IRQ, 0);
+		fprintf(stdout, "LEGACY IRQ:\t");
+		if (ret < 0)
+			fprintf(stdout, "TEST FAILED\n");
+		else
+			fprintf(stdout, "%s\n", result[ret]);
+	}
+
+	if (test->msinum > 0 && test->msinum <= 32) {
+		ret = ioctl(fd, PCITEST_MSI, test->msinum);
+		fprintf(stdout, "MSI%d:\t\t", test->msinum);
+		if (ret < 0)
+			fprintf(stdout, "TEST FAILED\n");
+		else
+			fprintf(stdout, "%s\n", result[ret]);
+	}
+
+	if (test->msixnum > 0 && test->msixnum <= 2048) {
+		ret = ioctl(fd, PCITEST_MSIX, test->msixnum);
+		fprintf(stdout, "MSI-X%d:\t\t", test->msixnum);
+		if (ret < 0)
+			fprintf(stdout, "TEST FAILED\n");
+		else
+			fprintf(stdout, "%s\n", result[ret]);
+	}
+
+	if (test->write) {
+		param.size = test->size;
+		if (test->use_dma)
+			param.flags = PCITEST_FLAGS_USE_DMA;
+		ret = ioctl(fd, PCITEST_WRITE, &param);
+		fprintf(stdout, "WRITE (%7ld bytes):\t\t", test->size);
+		if (ret < 0)
+			fprintf(stdout, "TEST FAILED\n");
+		else
+			fprintf(stdout, "%s\n", result[ret]);
+	}
+
+	if (test->read) {
+		param.size = test->size;
+		if (test->use_dma)
+			param.flags = PCITEST_FLAGS_USE_DMA;
+		ret = ioctl(fd, PCITEST_READ, &param);
+		fprintf(stdout, "READ (%7ld bytes):\t\t", test->size);
+		if (ret < 0)
+			fprintf(stdout, "TEST FAILED\n");
+		else
+			fprintf(stdout, "%s\n", result[ret]);
+	}
+
+	if (test->copy) {
+		param.size = test->size;
+		if (test->use_dma)
+			param.flags = PCITEST_FLAGS_USE_DMA;
+		ret = ioctl(fd, PCITEST_COPY, &param);
+		fprintf(stdout, "COPY (%7ld bytes):\t\t", test->size);
+		if (ret < 0)
+			fprintf(stdout, "TEST FAILED\n");
+		else
+			fprintf(stdout, "%s\n", result[ret]);
+	}
+
+	fflush(stdout);
+	close(fd);
+	return (ret < 0) ? ret : 1 - ret; /* return 0 if test succeeded */
+}
+
+int main(int argc, char **argv)
+{
+	int c;
+	struct pci_test *test;
+
+	test = calloc(1, sizeof(*test));
+	if (!test) {
+		perror("Fail to allocate memory for pci_test\n");
+		return -ENOMEM;
+	}
+
+	/* since '0' is a valid BAR number, initialize it to -1 */
+	test->barnum = -1;
+
+	/* set default size as 100KB */
+	test->size = 0x19000;
+
+	/* set default endpoint device */
+	test->device = "/dev/pci-endpoint-test.0";
+
+	while ((c = getopt(argc, argv, "D:b:m:x:i:deIlhrwcs:")) != EOF)
+	switch (c) {
+	case 'D':
+		test->device = optarg;
+		continue;
+	case 'b':
+		test->barnum = atoi(optarg);
+		if (test->barnum < 0 || test->barnum > 5)
+			goto usage;
+		continue;
+	case 'l':
+		test->legacyirq = true;
+		continue;
+	case 'm':
+		test->msinum = atoi(optarg);
+		if (test->msinum < 1 || test->msinum > 32)
+			goto usage;
+		continue;
+	case 'x':
+		test->msixnum = atoi(optarg);
+		if (test->msixnum < 1 || test->msixnum > 2048)
+			goto usage;
+		continue;
+	case 'i':
+		test->irqtype = atoi(optarg);
+		if (test->irqtype < 0 || test->irqtype > 2)
+			goto usage;
+		test->set_irqtype = true;
+		continue;
+	case 'I':
+		test->get_irqtype = true;
+		continue;
+	case 'r':
+		test->read = true;
+		continue;
+	case 'w':
+		test->write = true;
+		continue;
+	case 'c':
+		test->copy = true;
+		continue;
+	case 'e':
+		test->clear_irq = true;
+		continue;
+	case 's':
+		test->size = strtoul(optarg, NULL, 0);
+		continue;
+	case 'd':
+		test->use_dma = true;
+		continue;
+	case 'h':
+	default:
+usage:
+		fprintf(stderr,
+			"usage: %s [options]\n"
+			"Options:\n"
+			"\t-D <dev>		PCI endpoint test device {default: /dev/pci-endpoint-test.0}\n"
+			"\t-b <bar num>		BAR test (bar number between 0..5)\n"
+			"\t-m <msi num>		MSI test (msi number between 1..32)\n"
+			"\t-x <msix num>	\tMSI-X test (msix number between 1..2048)\n"
+			"\t-i <irq type>	\tSet IRQ type (0 - Legacy, 1 - MSI, 2 - MSI-X)\n"
+			"\t-e			Clear IRQ\n"
+			"\t-I			Get current IRQ type configured\n"
+			"\t-d			Use DMA\n"
+			"\t-l			Legacy IRQ test\n"
+			"\t-r			Read buffer test\n"
+			"\t-w			Write buffer test\n"
+			"\t-c			Copy buffer test\n"
+			"\t-s <size>		Size of buffer {default: 100KB}\n"
+			"\t-h			Print this help message\n",
+			argv[0]);
+		return -EINVAL;
+	}
+
+	return run_test(test);
+}
diff --git a/tools/pci/pcitest.sh b/tools/pci/pcitest.sh
new file mode 100644
index 000000000..75ed48ff2
--- /dev/null
+++ b/tools/pci/pcitest.sh
@@ -0,0 +1,72 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+
+echo "BAR tests"
+echo
+
+bar=0
+
+while [ $bar -lt 6 ]
+do
+	pcitest -b $bar
+	bar=`expr $bar + 1`
+done
+echo
+
+echo "Interrupt tests"
+echo
+
+pcitest -i 0
+pcitest -l
+
+pcitest -i 1
+msi=1
+
+while [ $msi -lt 33 ]
+do
+        pcitest -m $msi
+        msi=`expr $msi + 1`
+done
+echo
+
+pcitest -i 2
+msix=1
+
+while [ $msix -lt 2049 ]
+do
+        pcitest -x $msix
+        msix=`expr $msix + 1`
+done
+echo
+
+echo "Read Tests"
+echo
+
+pcitest -i 1
+
+pcitest -r -s 1
+pcitest -r -s 1024
+pcitest -r -s 1025
+pcitest -r -s 1024000
+pcitest -r -s 1024001
+echo
+
+echo "Write Tests"
+echo
+
+pcitest -w -s 1
+pcitest -w -s 1024
+pcitest -w -s 1025
+pcitest -w -s 1024000
+pcitest -w -s 1024001
+echo
+
+echo "Copy Tests"
+echo
+
+pcitest -c -s 1
+pcitest -c -s 1024
+pcitest -c -s 1025
+pcitest -c -s 1024000
+pcitest -c -s 1024001
+echo