[PATCH v2] commands: import memtester 4.3.0 from Debian GNU/Linux
Peter Mamonov
pmamonov at gmail.com
Fri Oct 23 17:45:22 EDT 2020
Memtester is an utility for testing the memory subsystem for faults. For
hardware developers, memtester can be told to test memory starting at a
particular physical address.
This port is based on the sources from Debian GNU/Linux. Debian package meta
data is as follows:
Package: memtester
Version: 4.3.0-5
Homepage: http://pyropus.ca/software/memtester/
APT-Sources: http://ftp.ru.debian.org/debian testing/main amd64 Packages
Dissected version of this patch can be found at
https://github.com/pmamonov/barebox/commits/memtester
Changes since v1:
1acbafe7a2 init global vars on start
7664692fd4 use proper return value
a10eba5b49 use strtoull_suffix() to parse memory size
001b623c16 add option to set TESTMASK
3acfe07d56 make tests[] static
528360ebd7 fix license
Signed-off-by: Peter Mamonov <pmamonov at gmail.com>
---
commands/Kconfig | 8 +
commands/Makefile | 1 +
commands/memtester/Makefile | 1 +
commands/memtester/memtester.c | 295 ++++++++++++++++++
commands/memtester/memtester.h | 21 ++
commands/memtester/sizes.h | 37 +++
commands/memtester/tests.c | 537 +++++++++++++++++++++++++++++++++
commands/memtester/tests.h | 36 +++
commands/memtester/types.h | 35 +++
9 files changed, 971 insertions(+)
create mode 100644 commands/memtester/Makefile
create mode 100644 commands/memtester/memtester.c
create mode 100644 commands/memtester/memtester.h
create mode 100644 commands/memtester/sizes.h
create mode 100644 commands/memtester/tests.c
create mode 100644 commands/memtester/tests.h
create mode 100644 commands/memtester/types.h
diff --git a/commands/Kconfig b/commands/Kconfig
index df18715f20..960d3608c7 100644
--- a/commands/Kconfig
+++ b/commands/Kconfig
@@ -1611,6 +1611,14 @@ config CMD_MEMTEST
-i ITERATIONS perform number of iterations (default 1, 0 is endless)
-b perform only a test on bus lines
+config CMD_MEMTESTER
+ tristate
+ prompt "memtester"
+ help
+ Utility for testing the memory subsystem.
+
+ Homepage: http://pyropus.ca/software/memtester/
+
config CMD_MM
tristate
select DEV_MEM
diff --git a/commands/Makefile b/commands/Makefile
index 6cc4997cc5..dc285cd00e 100644
--- a/commands/Makefile
+++ b/commands/Makefile
@@ -49,6 +49,7 @@ obj-$(CONFIG_CMD_LOADENV) += loadenv.o
obj-$(CONFIG_CMD_NAND) += nand.o
obj-$(CONFIG_CMD_NANDTEST) += nandtest.o
obj-$(CONFIG_CMD_MEMTEST) += memtest.o
+obj-$(CONFIG_CMD_MEMTESTER) += memtester/
obj-$(CONFIG_CMD_TRUE) += true.o
obj-$(CONFIG_CMD_FALSE) += false.o
obj-$(CONFIG_CMD_VERSION) += version.o
diff --git a/commands/memtester/Makefile b/commands/memtester/Makefile
new file mode 100644
index 0000000000..17a2429276
--- /dev/null
+++ b/commands/memtester/Makefile
@@ -0,0 +1 @@
+obj-y += tests.o memtester.o
diff --git a/commands/memtester/memtester.c b/commands/memtester/memtester.c
new file mode 100644
index 0000000000..8342eabfb1
--- /dev/null
+++ b/commands/memtester/memtester.c
@@ -0,0 +1,295 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * memtester version 4
+ *
+ * Very simple but very effective user-space memory tester.
+ * Originally by Simon Kirby <sim at stormix.com> <sim at neato.org>
+ * Version 2 by Charles Cazabon <charlesc-memtester at pyropus.ca>
+ * Version 3 not publicly released.
+ * Version 4 rewrite:
+ * Copyright (C) 2004-2012 Charles Cazabon <charlesc-memtester at pyropus.ca>
+ *
+ */
+
+#define __version__ "4.3.0"
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <string.h>
+#include <errno.h>
+#include <getopt.h>
+#include <common.h>
+#include <command.h>
+#include <environment.h>
+#include <fs.h>
+
+#include "types.h"
+#include "sizes.h"
+#include "tests.h"
+
+#define EXIT_FAIL_NONSTARTER COMMAND_ERROR
+#define EXIT_FAIL_ADDRESSLINES 0x02
+#define EXIT_FAIL_OTHERTEST 0x04
+
+static struct test tests[] = {
+ { "Random Value", test_random_value },
+ { "Compare XOR", test_xor_comparison },
+ { "Compare SUB", test_sub_comparison },
+ { "Compare MUL", test_mul_comparison },
+ { "Compare DIV",test_div_comparison },
+ { "Compare OR", test_or_comparison },
+ { "Compare AND", test_and_comparison },
+ { "Sequential Increment", test_seqinc_comparison },
+ { "Solid Bits", test_solidbits_comparison },
+ { "Block Sequential", test_blockseq_comparison },
+ { "Checkerboard", test_checkerboard_comparison },
+ { "Bit Spread", test_bitspread_comparison },
+ { "Bit Flip", test_bitflip_comparison },
+ { "Walking Ones", test_walkbits1_comparison },
+ { "Walking Zeroes", test_walkbits0_comparison },
+ { "8-bit Writes", test_8bit_wide_random },
+ { "16-bit Writes", test_16bit_wide_random },
+ { NULL, NULL }
+};
+
+/* Function declarations */
+
+/* Global vars - so tests have access to this information */
+int use_phys;
+off_t physaddrbase;
+
+static int do_memtester(int argc, char **argv) {
+ ul loops, loop, i;
+ size_t wantmb, wantbytes, bufsize,
+ halflen, count;
+ char *addrsuffix, *loopsuffix;
+ void volatile *buf, *aligned;
+ ulv *bufa, *bufb;
+ int exit_code = 0, ret;
+ int memfd = 0, opt;
+ size_t maxbytes = -1; /* addressable memory, in bytes */
+ size_t maxmb = (maxbytes >> 20) + 1; /* addressable memory, in MB */
+ /* Device to mmap memory from with -p, default is normal core */
+ char *device_name = "/dev/mem";
+ struct stat statbuf;
+ int device_specified = 0;
+ ul testmask = 0;
+
+ use_phys = 0;
+ physaddrbase = 0;
+
+ printf("memtester version " __version__ " (%d-bit)\n", UL_LEN);
+ printf("Copyright (C) 2001-2012 Charles Cazabon.\n");
+ printf("Licensed under the GNU General Public License version 2 (only).\n");
+ printf("\n");
+
+ while ((opt = getopt(argc, argv, "p:d:m:")) != -1) {
+ switch (opt) {
+ case 'm':
+ errno = 0;
+ testmask = simple_strtoul(optarg, 0, 0);
+ if (errno) {
+ printf("error parsing MEMTESTER_TEST_MASK %s: %s\n",
+ optarg, strerror(errno));
+ return COMMAND_ERROR_USAGE;
+ }
+ printf("using testmask 0x%lx\n", testmask);
+ break;
+ case 'p':
+ errno = 0;
+ physaddrbase = (off_t) simple_strtoull(optarg, &addrsuffix, 16);
+ if (errno != 0) {
+ printf("failed to parse physaddrbase arg; should be hex "
+ "address (0x123...)\n");
+ return COMMAND_ERROR_USAGE;
+ }
+ if (*addrsuffix != '\0') {
+ /* got an invalid character in the address */
+ printf("failed to parse physaddrbase arg; should be hex "
+ "address (0x123...)\n");
+ return COMMAND_ERROR_USAGE;
+ }
+ /* okay, got address */
+ use_phys = 1;
+ break;
+ case 'd':
+ if (stat(optarg,&statbuf)) {
+ printf("can not use %s as device: %s\n", optarg,
+ strerror(errno));
+ return COMMAND_ERROR_USAGE;
+ } else {
+ if (!S_ISCHR(statbuf.st_mode)) {
+ printf("can not mmap non-char device %s\n",
+ optarg);
+ return COMMAND_ERROR_USAGE;
+ } else {
+ device_name = optarg;
+ device_specified = 1;
+ }
+ }
+ break;
+ default: /* '?' */
+ return COMMAND_ERROR_USAGE;
+ }
+ }
+ if (device_specified && !use_phys) {
+ printf("for mem device, physaddrbase (-p) must be specified\n");
+ return COMMAND_ERROR_USAGE;
+ }
+
+ if (optind >= argc) {
+ printf("need memory argument, in MB\n");
+ return COMMAND_ERROR_USAGE;
+ }
+
+ errno = 0;
+ wantbytes = (size_t) strtoull_suffix(argv[optind], 0, 0);
+ if (errno != 0) {
+ printf("failed to parse memory argument");
+ return COMMAND_ERROR_USAGE;
+ }
+ wantmb = (wantbytes >> 20);
+ optind++;
+ if (wantmb > maxmb) {
+ printf("This system can only address %llu MB.\n", (ull) maxmb);
+ return EXIT_FAIL_NONSTARTER;
+ }
+
+ if (optind >= argc) {
+ loops = 0;
+ } else {
+ errno = 0;
+ loops = simple_strtoul(argv[optind], &loopsuffix, 0);
+ if (errno != 0) {
+ printf("failed to parse number of loops");
+ return COMMAND_ERROR_USAGE;
+ }
+ if (*loopsuffix != '\0') {
+ printf("loop suffix %c\n", *loopsuffix);
+ return COMMAND_ERROR_USAGE;
+ }
+ }
+
+ printf("want %lluMB (%llu bytes)\n", (ull) wantmb, (ull) wantbytes);
+ buf = NULL;
+
+ if (use_phys) {
+ memfd = open(device_name, O_RDWR);
+ if (memfd == -1) {
+ printf("failed to open %s for physical memory: %s\n",
+ device_name, strerror(errno));
+ return EXIT_FAIL_NONSTARTER;
+ }
+ buf = (void volatile *) memmap(memfd, PROT_READ | PROT_WRITE) +
+ physaddrbase;
+ if (buf == MAP_FAILED) {
+ printf("failed to mmap %s for physical memory: %s\n",
+ device_name, strerror(errno));
+ return EXIT_FAIL_NONSTARTER;
+ }
+
+ bufsize = wantbytes; /* accept no less */
+ } else {
+ buf = (void volatile *) malloc(wantbytes);
+ if (!buf) {
+ printf("malloc failed\n");
+ return ENOMEM;
+ }
+ printf("got %lluMB (%llu bytes)\n", (ull) wantbytes >> 20,
+ (ull) wantbytes);
+ }
+ bufsize = wantbytes;
+ aligned = buf;
+
+ printf("buffer @ 0x%p\n", buf);
+
+ halflen = bufsize / 2;
+ count = halflen / sizeof(ul);
+ bufa = (ulv *) aligned;
+ bufb = (ulv *) ((size_t) aligned + halflen);
+
+ for(loop=1; ((!loops) || loop <= loops); loop++) {
+ printf("Loop %lu", loop);
+ if (loops) {
+ printf("/%lu", loops);
+ }
+ printf(":\n");
+ printf(" %-20s: ", "Stuck Address");
+ console_flush();
+ ret = test_stuck_address(aligned, bufsize / sizeof(ul));
+ if (!ret) {
+ printf("ok\n");
+ } else if (ret == -EINTR) {
+ goto out;
+ } else {
+ exit_code |= EXIT_FAIL_ADDRESSLINES;
+ }
+ for (i=0;;i++) {
+ if (!tests[i].name) break;
+ /* If using a custom testmask, only run this test if the
+ bit corresponding to this test was set by the user.
+ */
+ if (testmask && (!((1 << i) & testmask))) {
+ continue;
+ }
+ printf(" %-20s: ", tests[i].name);
+ ret = tests[i].fp(bufa, bufb, count);
+ if (!ret) {
+ printf("ok\n");
+ } else if (ret == -EINTR) {
+ goto out;
+ } else {
+ exit_code |= EXIT_FAIL_OTHERTEST;
+ }
+ console_flush();
+ }
+ printf("\n");
+ console_flush();
+ }
+out:
+ if (use_phys)
+ close(memfd);
+ else
+ free((void *)buf);
+ printf("Done.\n");
+ console_flush();
+ if (!exit_code)
+ return 0;
+ printf("%s FAILED: 0x%x\n", argv[0], exit_code);
+ return COMMAND_ERROR;
+}
+
+BAREBOX_CMD_HELP_START(memtester)
+BAREBOX_CMD_HELP_TEXT("Options:")
+BAREBOX_CMD_HELP_TEXT("-p PHYSADDR")
+BAREBOX_CMD_HELP_TEXT(" tells memtester to test a specific region of memory starting at physical")
+BAREBOX_CMD_HELP_TEXT(" address PHYSADDR (given in hex), by mmaping a device specified by the -d")
+BAREBOX_CMD_HELP_TEXT(" option (below, or /dev/mem by default).")
+BAREBOX_CMD_HELP_TEXT("")
+BAREBOX_CMD_HELP_TEXT("-d DEVICE")
+BAREBOX_CMD_HELP_TEXT(" a device to mmap")
+BAREBOX_CMD_HELP_TEXT("")
+BAREBOX_CMD_HELP_TEXT("")
+BAREBOX_CMD_HELP_TEXT("-m TESTMASK")
+BAREBOX_CMD_HELP_TEXT(" bitmask to select desired tests")
+BAREBOX_CMD_HELP_TEXT("")
+BAREBOX_CMD_HELP_TEXT("MEMORY ")
+BAREBOX_CMD_HELP_TEXT(" the amount of memory to allocate and test in bytes. You")
+BAREBOX_CMD_HELP_TEXT(" can include a suffix of K, M, or G to indicate kilobytes, ")
+BAREBOX_CMD_HELP_TEXT(" megabytes, or gigabytes respectively.")
+BAREBOX_CMD_HELP_TEXT("")
+BAREBOX_CMD_HELP_TEXT("ITERATIONS")
+BAREBOX_CMD_HELP_TEXT(" (optional) number of loops to iterate through. Default is infinite.")
+BAREBOX_CMD_HELP_END
+
+BAREBOX_CMD_START(memtester)
+ .cmd = do_memtester,
+ BAREBOX_CMD_DESC("memory stress-testing")
+ BAREBOX_CMD_OPTS("[-p PHYSADDR [-d DEVICE]] [-m TESTMASK] <MEMORY>[k|M|G] [ITERATIONS]")
+ BAREBOX_CMD_GROUP(CMD_GRP_MEM)
+ BAREBOX_CMD_HELP(cmd_memtester_help)
+BAREBOX_CMD_END
diff --git a/commands/memtester/memtester.h b/commands/memtester/memtester.h
new file mode 100644
index 0000000000..008af0351a
--- /dev/null
+++ b/commands/memtester/memtester.h
@@ -0,0 +1,21 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Very simple (yet, for some reason, very effective) memory tester.
+ * Originally by Simon Kirby <sim at stormix.com> <sim at neato.org>
+ * Version 2 by Charles Cazabon <charlesc-memtester at pyropus.ca>
+ * Version 3 not publicly released.
+ * Version 4 rewrite:
+ * Copyright (C) 2004-2012 Charles Cazabon <charlesc-memtester at pyropus.ca>
+ *
+ * This file contains the declarations for external variables from the main file.
+ * See other comments in that file.
+ *
+ */
+
+#include <types.h>
+
+/* extern declarations. */
+
+extern int use_phys;
+extern off_t physaddrbase;
+
diff --git a/commands/memtester/sizes.h b/commands/memtester/sizes.h
new file mode 100644
index 0000000000..d57f74f8ba
--- /dev/null
+++ b/commands/memtester/sizes.h
@@ -0,0 +1,37 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Very simple but very effective user-space memory tester.
+ * Originally by Simon Kirby <sim at stormix.com> <sim at neato.org>
+ * Version 2 by Charles Cazabon <charlesc-memtester at pyropus.ca>
+ * Version 3 not publicly released.
+ * Version 4 rewrite:
+ * Copyright (C) 2004-2012 Charles Cazabon <charlesc-memtester at pyropus.ca>
+ *
+ * This file contains some macro definitions for handling 32/64 bit platforms.
+ *
+ */
+
+#include <linux/limits.h>
+
+#define rand32() ((unsigned int) rand() | ( (unsigned int) rand() << 16))
+
+#if defined(CONFIG_32BIT)
+ #define rand_ul() rand32()
+ #define UL_ONEBITS 0xffffffff
+ #define UL_LEN 32
+ #define CHECKERBOARD1 0x55555555
+ #define CHECKERBOARD2 0xaaaaaaaa
+ #define UL_BYTE(x) ((x | x << 8 | x << 16 | x << 24))
+#elif defined(CONFIG_64BIT)
+ #define rand64() (((ul) rand32()) << 32 | ((ul) rand32()))
+ #define rand_ul() rand64()
+ #define UL_ONEBITS 0xffffffffffffffffUL
+ #define UL_LEN 64
+ #define CHECKERBOARD1 0x5555555555555555
+ #define CHECKERBOARD2 0xaaaaaaaaaaaaaaaa
+ #define UL_BYTE(x) (((ul)x | (ul)x<<8 | (ul)x<<16 | (ul)x<<24 | (ul)x<<32 | (ul)x<<40 | (ul)x<<48 | (ul)x<<56))
+#else
+ #error long on this platform is not 32 or 64 bits
+#endif
+
+
diff --git a/commands/memtester/tests.c b/commands/memtester/tests.c
new file mode 100644
index 0000000000..4411573ba4
--- /dev/null
+++ b/commands/memtester/tests.c
@@ -0,0 +1,537 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Very simple but very effective user-space memory tester.
+ * Originally by Simon Kirby <sim at stormix.com> <sim at neato.org>
+ * Version 2 by Charles Cazabon <charlesc-memtester at pyropus.ca>
+ * Version 3 not publicly released.
+ * Version 4 rewrite:
+ * Copyright (C) 2004-2012 Charles Cazabon <charlesc-memtester at pyropus.ca>
+ *
+ * This file contains the functions for the actual tests, called from the
+ * main routine in memtester.c. See other comments in that file.
+ *
+ */
+
+#include <common.h>
+#include <types.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <linux/limits.h>
+
+#include "types.h"
+#include "sizes.h"
+#include "memtester.h"
+#include "tests.h"
+
+char progress[] = "-\\|/";
+#define PROGRESSLEN 4
+#define PROGRESSOFTEN 2500
+#define ONE 0x00000001L
+
+mword8_t mword8;
+mword16_t mword16;
+
+/* Function definitions. */
+
+static int compare_regions(ulv *bufa, ulv *bufb, size_t count) {
+ int r = 0;
+ size_t i;
+ ulv *p1 = bufa;
+ ulv *p2 = bufb;
+ off_t physaddr;
+
+ if (ctrlc())
+ return -EINTR;
+
+ for (i = 0; i < count; i++, p1++, p2++) {
+ if (*p1 != *p2) {
+ if (use_phys) {
+ physaddr = physaddrbase + (i * sizeof(ul));
+ printf("FAILURE: 0x%08lx != 0x%08lx at physical address "
+ "0x%08lx.\n",
+ (ul) *p1, (ul) *p2, physaddr);
+ } else {
+ printf("FAILURE: 0x%08lx != 0x%08lx at offset 0x%08lx.\n",
+ (ul) *p1, (ul) *p2, (ul) (i * sizeof(ul)));
+ }
+ /* printf("Skipping to next test..."); */
+ r = -1;
+ }
+ }
+ return r;
+}
+
+int test_stuck_address(ulv *bufa, size_t count) {
+ ulv *p1 = bufa;
+ unsigned int j;
+ size_t i;
+ off_t physaddr;
+
+ printf(" ");
+ console_flush();
+ for (j = 0; j < 16; j++) {
+ if (ctrlc())
+ return -EINTR;
+ printf("\b\b\b\b\b\b\b\b\b\b\b");
+ p1 = (ulv *) bufa;
+ printf("setting %3u", j);
+ console_flush();
+ for (i = 0; i < count; i++) {
+ *p1 = ((j + i) % 2) == 0 ? (ul) p1 : ~((ul) p1);
+ *p1++;
+ }
+ printf("\b\b\b\b\b\b\b\b\b\b\b");
+ printf("testing %3u", j);
+ console_flush();
+ p1 = (ulv *) bufa;
+ for (i = 0; i < count; i++, p1++) {
+ if (*p1 != (((j + i) % 2) == 0 ? (ul) p1 : ~((ul) p1))) {
+ if (use_phys) {
+ physaddr = physaddrbase + (i * sizeof(ul));
+ printf("FAILURE: possible bad address line at physical "
+ "address 0x%08lx.\n",
+ physaddr);
+ } else {
+ printf("FAILURE: possible bad address line at offset "
+ "0x%08lx.\n",
+ (ul) (i * sizeof(ul)));
+ }
+ printf("Skipping to next test...\n");
+ console_flush();
+ return -1;
+ }
+ }
+ }
+ printf("\b\b\b\b\b\b\b\b\b\b\b \b\b\b\b\b\b\b\b\b\b\b");
+ console_flush();
+ return 0;
+}
+
+int test_random_value(ulv *bufa, ulv *bufb, size_t count) {
+ ulv *p1 = bufa;
+ ulv *p2 = bufb;
+ ul j = 0;
+ size_t i;
+
+ putchar(' ');
+ console_flush();
+ for (i = 0; i < count; i++) {
+ *p1++ = *p2++ = rand_ul();
+ if (!(i % PROGRESSOFTEN)) {
+ putchar('\b');
+ putchar(progress[++j % PROGRESSLEN]);
+ console_flush();
+ }
+ }
+ printf("\b \b");
+ console_flush();
+ return compare_regions(bufa, bufb, count);
+}
+
+int test_xor_comparison(ulv *bufa, ulv *bufb, size_t count) {
+ ulv *p1 = bufa;
+ ulv *p2 = bufb;
+ size_t i;
+ ul q = rand_ul();
+
+ for (i = 0; i < count; i++) {
+ *p1++ ^= q;
+ *p2++ ^= q;
+ }
+ return compare_regions(bufa, bufb, count);
+}
+
+int test_sub_comparison(ulv *bufa, ulv *bufb, size_t count) {
+ ulv *p1 = bufa;
+ ulv *p2 = bufb;
+ size_t i;
+ ul q = rand_ul();
+
+ for (i = 0; i < count; i++) {
+ *p1++ -= q;
+ *p2++ -= q;
+ }
+ return compare_regions(bufa, bufb, count);
+}
+
+int test_mul_comparison(ulv *bufa, ulv *bufb, size_t count) {
+ ulv *p1 = bufa;
+ ulv *p2 = bufb;
+ size_t i;
+ ul q = rand_ul();
+
+ for (i = 0; i < count; i++) {
+ *p1++ *= q;
+ *p2++ *= q;
+ }
+ return compare_regions(bufa, bufb, count);
+}
+
+int test_div_comparison(ulv *bufa, ulv *bufb, size_t count) {
+ ulv *p1 = bufa;
+ ulv *p2 = bufb;
+ size_t i;
+ ul q = rand_ul();
+
+ for (i = 0; i < count; i++) {
+ if (!q) {
+ q++;
+ }
+ *p1++ /= q;
+ *p2++ /= q;
+ }
+ return compare_regions(bufa, bufb, count);
+}
+
+int test_or_comparison(ulv *bufa, ulv *bufb, size_t count) {
+ ulv *p1 = bufa;
+ ulv *p2 = bufb;
+ size_t i;
+ ul q = rand_ul();
+
+ for (i = 0; i < count; i++) {
+ *p1++ |= q;
+ *p2++ |= q;
+ }
+ return compare_regions(bufa, bufb, count);
+}
+
+int test_and_comparison(ulv *bufa, ulv *bufb, size_t count) {
+ ulv *p1 = bufa;
+ ulv *p2 = bufb;
+ size_t i;
+ ul q = rand_ul();
+
+ for (i = 0; i < count; i++) {
+ *p1++ &= q;
+ *p2++ &= q;
+ }
+ return compare_regions(bufa, bufb, count);
+}
+
+int test_seqinc_comparison(ulv *bufa, ulv *bufb, size_t count) {
+ ulv *p1 = bufa;
+ ulv *p2 = bufb;
+ size_t i;
+ ul q = rand_ul();
+
+ for (i = 0; i < count; i++) {
+ *p1++ = *p2++ = (i + q);
+ }
+ return compare_regions(bufa, bufb, count);
+}
+
+int test_solidbits_comparison(ulv *bufa, ulv *bufb, size_t count) {
+ ulv *p1 = bufa;
+ ulv *p2 = bufb;
+ unsigned int j;
+ ul q;
+ size_t i;
+ int ret;
+
+ printf(" ");
+ console_flush();
+ for (j = 0; j < 64; j++) {
+ printf("\b\b\b\b\b\b\b\b\b\b\b");
+ q = (j % 2) == 0 ? UL_ONEBITS : 0;
+ printf("setting %3u", j);
+ console_flush();
+ p1 = (ulv *) bufa;
+ p2 = (ulv *) bufb;
+ for (i = 0; i < count; i++) {
+ *p1++ = *p2++ = (i % 2) == 0 ? q : ~q;
+ }
+ printf("\b\b\b\b\b\b\b\b\b\b\b");
+ printf("testing %3u", j);
+ console_flush();
+ ret = compare_regions(bufa, bufb, count);
+ if (ret)
+ return ret;
+ }
+ printf("\b\b\b\b\b\b\b\b\b\b\b \b\b\b\b\b\b\b\b\b\b\b");
+ console_flush();
+ return 0;
+}
+
+int test_checkerboard_comparison(ulv *bufa, ulv *bufb, size_t count) {
+ ulv *p1 = bufa;
+ ulv *p2 = bufb;
+ unsigned int j;
+ ul q;
+ size_t i;
+ int ret;
+
+ printf(" ");
+ console_flush();
+ for (j = 0; j < 64; j++) {
+ printf("\b\b\b\b\b\b\b\b\b\b\b");
+ q = (j % 2) == 0 ? CHECKERBOARD1 : CHECKERBOARD2;
+ printf("setting %3u", j);
+ console_flush();
+ p1 = (ulv *) bufa;
+ p2 = (ulv *) bufb;
+ for (i = 0; i < count; i++) {
+ *p1++ = *p2++ = (i % 2) == 0 ? q : ~q;
+ }
+ printf("\b\b\b\b\b\b\b\b\b\b\b");
+ printf("testing %3u", j);
+ console_flush();
+ ret = compare_regions(bufa, bufb, count);
+ if (ret)
+ return ret;
+ }
+ printf("\b\b\b\b\b\b\b\b\b\b\b \b\b\b\b\b\b\b\b\b\b\b");
+ console_flush();
+ return 0;
+}
+
+int test_blockseq_comparison(ulv *bufa, ulv *bufb, size_t count) {
+ ulv *p1 = bufa;
+ ulv *p2 = bufb;
+ unsigned int j;
+ size_t i;
+ int ret;
+
+ printf(" ");
+ console_flush();
+ for (j = 0; j < 256; j++) {
+ printf("\b\b\b\b\b\b\b\b\b\b\b");
+ p1 = (ulv *) bufa;
+ p2 = (ulv *) bufb;
+ printf("setting %3u", j);
+ console_flush();
+ for (i = 0; i < count; i++) {
+ *p1++ = *p2++ = (ul) UL_BYTE(j);
+ }
+ printf("\b\b\b\b\b\b\b\b\b\b\b");
+ printf("testing %3u", j);
+ console_flush();
+ ret = compare_regions(bufa, bufb, count);
+ if (ret)
+ return ret;
+ }
+ printf("\b\b\b\b\b\b\b\b\b\b\b \b\b\b\b\b\b\b\b\b\b\b");
+ console_flush();
+ return 0;
+}
+
+int test_walkbits0_comparison(ulv *bufa, ulv *bufb, size_t count) {
+ ulv *p1 = bufa;
+ ulv *p2 = bufb;
+ unsigned int j;
+ size_t i;
+ int ret;
+
+ printf(" ");
+ console_flush();
+ for (j = 0; j < UL_LEN * 2; j++) {
+ printf("\b\b\b\b\b\b\b\b\b\b\b");
+ p1 = (ulv *) bufa;
+ p2 = (ulv *) bufb;
+ printf("setting %3u", j);
+ console_flush();
+ for (i = 0; i < count; i++) {
+ if (j < UL_LEN) { /* Walk it up. */
+ *p1++ = *p2++ = ONE << j;
+ } else { /* Walk it back down. */
+ *p1++ = *p2++ = ONE << (UL_LEN * 2 - j - 1);
+ }
+ }
+ printf("\b\b\b\b\b\b\b\b\b\b\b");
+ printf("testing %3u", j);
+ console_flush();
+ ret = compare_regions(bufa, bufb, count);
+ if (ret)
+ return ret;
+ }
+ printf("\b\b\b\b\b\b\b\b\b\b\b \b\b\b\b\b\b\b\b\b\b\b");
+ console_flush();
+ return 0;
+}
+
+int test_walkbits1_comparison(ulv *bufa, ulv *bufb, size_t count) {
+ ulv *p1 = bufa;
+ ulv *p2 = bufb;
+ unsigned int j;
+ size_t i;
+ int ret;
+
+ printf(" ");
+ console_flush();
+ for (j = 0; j < UL_LEN * 2; j++) {
+ printf("\b\b\b\b\b\b\b\b\b\b\b");
+ p1 = (ulv *) bufa;
+ p2 = (ulv *) bufb;
+ printf("setting %3u", j);
+ console_flush();
+ for (i = 0; i < count; i++) {
+ if (j < UL_LEN) { /* Walk it up. */
+ *p1++ = *p2++ = UL_ONEBITS ^ (ONE << j);
+ } else { /* Walk it back down. */
+ *p1++ = *p2++ = UL_ONEBITS ^ (ONE << (UL_LEN * 2 - j - 1));
+ }
+ }
+ printf("\b\b\b\b\b\b\b\b\b\b\b");
+ printf("testing %3u", j);
+ console_flush();
+ ret = compare_regions(bufa, bufb, count);
+ if (ret)
+ return ret;
+ }
+ printf("\b\b\b\b\b\b\b\b\b\b\b \b\b\b\b\b\b\b\b\b\b\b");
+ console_flush();
+ return 0;
+}
+
+int test_bitspread_comparison(ulv *bufa, ulv *bufb, size_t count) {
+ ulv *p1 = bufa;
+ ulv *p2 = bufb;
+ unsigned int j;
+ size_t i;
+ int ret;
+
+ printf(" ");
+ console_flush();
+ for (j = 0; j < UL_LEN * 2; j++) {
+ printf("\b\b\b\b\b\b\b\b\b\b\b");
+ p1 = (ulv *) bufa;
+ p2 = (ulv *) bufb;
+ printf("setting %3u", j);
+ console_flush();
+ for (i = 0; i < count; i++) {
+ if (j < UL_LEN) { /* Walk it up. */
+ *p1++ = *p2++ = (i % 2 == 0)
+ ? (ONE << j) | (ONE << (j + 2))
+ : UL_ONEBITS ^ ((ONE << j)
+ | (ONE << (j + 2)));
+ } else { /* Walk it back down. */
+ *p1++ = *p2++ = (i % 2 == 0)
+ ? (ONE << (UL_LEN * 2 - 1 - j)) | (ONE << (UL_LEN * 2 + 1 - j))
+ : UL_ONEBITS ^ (ONE << (UL_LEN * 2 - 1 - j)
+ | (ONE << (UL_LEN * 2 + 1 - j)));
+ }
+ }
+ printf("\b\b\b\b\b\b\b\b\b\b\b");
+ printf("testing %3u", j);
+ console_flush();
+ ret = compare_regions(bufa, bufb, count);
+ if (ret)
+ return ret;
+ }
+ printf("\b\b\b\b\b\b\b\b\b\b\b \b\b\b\b\b\b\b\b\b\b\b");
+ console_flush();
+ return 0;
+}
+
+int test_bitflip_comparison(ulv *bufa, ulv *bufb, size_t count) {
+ ulv *p1 = bufa;
+ ulv *p2 = bufb;
+ unsigned int j, k;
+ ul q;
+ size_t i;
+ int ret;
+
+ printf(" ");
+ console_flush();
+ for (k = 0; k < UL_LEN; k++) {
+ q = ONE << k;
+ for (j = 0; j < 8; j++) {
+ printf("\b\b\b\b\b\b\b\b\b\b\b");
+ q = ~q;
+ printf("setting %3u", k * 8 + j);
+ console_flush();
+ p1 = (ulv *) bufa;
+ p2 = (ulv *) bufb;
+ for (i = 0; i < count; i++) {
+ *p1++ = *p2++ = (i % 2) == 0 ? q : ~q;
+ }
+ printf("\b\b\b\b\b\b\b\b\b\b\b");
+ printf("testing %3u", k * 8 + j);
+ console_flush();
+ ret = compare_regions(bufa, bufb, count);
+ if (ret)
+ return -1;
+ }
+ }
+ printf("\b\b\b\b\b\b\b\b\b\b\b \b\b\b\b\b\b\b\b\b\b\b");
+ console_flush();
+ return 0;
+}
+
+int test_8bit_wide_random(ulv* bufa, ulv* bufb, size_t count) {
+ u8v *p1, *t;
+ ulv *p2;
+ int attempt;
+ unsigned int b, j = 0;
+ size_t i;
+ int ret;
+
+ putchar(' ');
+ console_flush();
+ for (attempt = 0; attempt < 2; attempt++) {
+ if (attempt & 1) {
+ p1 = (u8v *) bufa;
+ p2 = bufb;
+ } else {
+ p1 = (u8v *) bufb;
+ p2 = bufa;
+ }
+ for (i = 0; i < count; i++) {
+ t = mword8.bytes;
+ *p2++ = mword8.val = rand_ul();
+ for (b=0; b < UL_LEN/8; b++) {
+ *p1++ = *t++;
+ }
+ if (!(i % PROGRESSOFTEN)) {
+ putchar('\b');
+ putchar(progress[++j % PROGRESSLEN]);
+ console_flush();
+ }
+ }
+ ret = compare_regions(bufa, bufb, count);
+ if (ret)
+ return ret;
+ }
+ printf("\b \b");
+ console_flush();
+ return 0;
+}
+
+int test_16bit_wide_random(ulv* bufa, ulv* bufb, size_t count) {
+ u16v *p1, *t;
+ ulv *p2;
+ int attempt;
+ unsigned int b, j = 0;
+ size_t i;
+ int ret;
+
+ putchar( ' ' );
+ console_flush();
+ for (attempt = 0; attempt < 2; attempt++) {
+ if (attempt & 1) {
+ p1 = (u16v *) bufa;
+ p2 = bufb;
+ } else {
+ p1 = (u16v *) bufb;
+ p2 = bufa;
+ }
+ for (i = 0; i < count; i++) {
+ t = mword16.u16s;
+ *p2++ = mword16.val = rand_ul();
+ for (b = 0; b < UL_LEN/16; b++) {
+ *p1++ = *t++;
+ }
+ if (!(i % PROGRESSOFTEN)) {
+ putchar('\b');
+ putchar(progress[++j % PROGRESSLEN]);
+ console_flush();
+ }
+ }
+ ret = compare_regions(bufa, bufb, count);
+ if (ret)
+ return ret;
+ }
+ printf("\b \b");
+ console_flush();
+ return 0;
+}
diff --git a/commands/memtester/tests.h b/commands/memtester/tests.h
new file mode 100644
index 0000000000..86ef72509c
--- /dev/null
+++ b/commands/memtester/tests.h
@@ -0,0 +1,36 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Very simple yet very effective memory tester.
+ * Originally by Simon Kirby <sim at stormix.com> <sim at neato.org>
+ * Version 2 by Charles Cazabon <charlesc-memtester at pyropus.ca>
+ * Version 3 not publicly released.
+ * Version 4 rewrite:
+ * Copyright (C) 2004-2012 Charles Cazabon <charlesc-memtester at pyropus.ca>
+ *
+ * This file contains the declarations for the functions for the actual tests,
+ * called from the main routine in memtester.c. See other comments in that
+ * file.
+ *
+ */
+
+/* Function declaration. */
+
+int test_stuck_address(unsigned long volatile *bufa, size_t count);
+int test_random_value(unsigned long volatile *bufa, unsigned long volatile *bufb, size_t count);
+int test_xor_comparison(unsigned long volatile *bufa, unsigned long volatile *bufb, size_t count);
+int test_sub_comparison(unsigned long volatile *bufa, unsigned long volatile *bufb, size_t count);
+int test_mul_comparison(unsigned long volatile *bufa, unsigned long volatile *bufb, size_t count);
+int test_div_comparison(unsigned long volatile *bufa, unsigned long volatile *bufb, size_t count);
+int test_or_comparison(unsigned long volatile *bufa, unsigned long volatile *bufb, size_t count);
+int test_and_comparison(unsigned long volatile *bufa, unsigned long volatile *bufb, size_t count);
+int test_seqinc_comparison(unsigned long volatile *bufa, unsigned long volatile *bufb, size_t count);
+int test_solidbits_comparison(unsigned long volatile *bufa, unsigned long volatile *bufb, size_t count);
+int test_checkerboard_comparison(unsigned long volatile *bufa, unsigned long volatile *bufb, size_t count);
+int test_blockseq_comparison(unsigned long volatile *bufa, unsigned long volatile *bufb, size_t count);
+int test_walkbits0_comparison(unsigned long volatile *bufa, unsigned long volatile *bufb, size_t count);
+int test_walkbits1_comparison(unsigned long volatile *bufa, unsigned long volatile *bufb, size_t count);
+int test_bitspread_comparison(unsigned long volatile *bufa, unsigned long volatile *bufb, size_t count);
+int test_bitflip_comparison(unsigned long volatile *bufa, unsigned long volatile *bufb, size_t count);
+int test_8bit_wide_random(unsigned long volatile *bufa, unsigned long volatile *bufb, size_t count);
+int test_16bit_wide_random(unsigned long volatile *bufa, unsigned long volatile *bufb, size_t count);
+
diff --git a/commands/memtester/types.h b/commands/memtester/types.h
new file mode 100644
index 0000000000..0291610d2c
--- /dev/null
+++ b/commands/memtester/types.h
@@ -0,0 +1,35 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Very simple but very effective user-space memory tester.
+ * Originally by Simon Kirby <sim at stormix.com> <sim at neato.org>
+ * Version 2 by Charles Cazabon <charlesc-memtester at pyropus.ca>
+ * Version 3 not publicly released.
+ * Version 4 rewrite:
+ * Copyright (C) 2004-2010 Charles Cazabon <charlesc-memtester at pyropus.ca>
+ *
+ * This file contains typedefs, structure, and union definitions.
+ *
+ */
+
+#include "sizes.h"
+
+typedef unsigned long ul;
+typedef unsigned long long ull;
+typedef unsigned long volatile ulv;
+typedef unsigned char volatile u8v;
+typedef unsigned short volatile u16v;
+
+struct test {
+ char *name;
+ int (*fp)(ulv *, ulv *, size_t);
+};
+
+typedef union {
+ unsigned char bytes[UL_LEN/8];
+ ul val;
+} mword8_t;
+
+typedef union {
+ unsigned short u16s[UL_LEN/16];
+ ul val;
+} mword16_t;
--
2.20.1
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