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https://github.com/u-boot/u-boot.git
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sandbox: Update mtest to fix crashes
Use map_sysmem() in the memory tester so that it works as expected on sandbox. Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass
parent
8e169cc943
commit
5512d5b034
108
common/cmd_mem.c
108
common/cmd_mem.c
@ -631,21 +631,19 @@ int do_mem_loopw (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
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}
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#endif /* CONFIG_LOOPW */
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static ulong mem_test_alt(ulong start_addr, ulong end_addr)
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static ulong mem_test_alt(vu_long *buf, ulong start_addr, ulong end_addr,
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vu_long *dummy)
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{
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vu_long *start, *end;
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vu_long *addr;
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ulong errs = 0;
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ulong val, readback;
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int j;
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vu_long len;
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vu_long offset;
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vu_long test_offset;
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vu_long pattern;
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vu_long temp;
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vu_long anti_pattern;
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vu_long num_words;
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vu_long *dummy = (vu_long *)CONFIG_SYS_MEMTEST_SCRATCH;
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static const ulong bitpattern[] = {
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0x00000001, /* single bit */
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0x00000003, /* two adjacent bits */
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@ -657,8 +655,7 @@ static ulong mem_test_alt(ulong start_addr, ulong end_addr)
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0xaaaaaaaa, /* alternating 1/0 */
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};
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start = (vu_long *)start_addr;
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end = (vu_long *)end_addr;
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num_words = (end_addr - start_addr) / sizeof(vu_long);
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/*
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* Data line test: write a pattern to the first
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@ -677,11 +674,11 @@ static ulong mem_test_alt(ulong start_addr, ulong end_addr)
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* '0's and '0' bits through a field of '1's (i.e.
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* pattern and ~pattern).
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*/
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addr = start;
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addr = buf;
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for (j = 0; j < sizeof(bitpattern) / sizeof(bitpattern[0]); j++) {
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val = bitpattern[j];
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for (; val != 0; val <<= 1) {
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*addr = val;
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*addr = val;
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*dummy = ~val; /* clear the test data off the bus */
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readback = *addr;
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if (readback != val) {
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@ -740,58 +737,56 @@ static ulong mem_test_alt(ulong start_addr, ulong end_addr)
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*
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* Returns: 0 if the test succeeds, 1 if the test fails.
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*/
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len = (end_addr - start_addr) / sizeof(vu_long);
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pattern = (vu_long) 0xaaaaaaaa;
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anti_pattern = (vu_long) 0x55555555;
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debug("%s:%d: length = 0x%.8lx\n",
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__func__, __LINE__, len);
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debug("%s:%d: length = 0x%.8lx\n", __func__, __LINE__, num_words);
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/*
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* Write the default pattern at each of the
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* power-of-two offsets.
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*/
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for (offset = 1; offset < len; offset <<= 1)
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start[offset] = pattern;
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for (offset = 1; offset < num_words; offset <<= 1)
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addr[offset] = pattern;
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/*
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* Check for address bits stuck high.
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*/
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test_offset = 0;
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start[test_offset] = anti_pattern;
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addr[test_offset] = anti_pattern;
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for (offset = 1; offset < len; offset <<= 1) {
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temp = start[offset];
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for (offset = 1; offset < num_words; offset <<= 1) {
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temp = addr[offset];
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if (temp != pattern) {
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printf("\nFAILURE: Address bit stuck high @ 0x%.8lx:"
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" expected 0x%.8lx, actual 0x%.8lx\n",
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(ulong)&start[offset], pattern, temp);
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start_addr + offset, pattern, temp);
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errs++;
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if (ctrlc())
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return -1;
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}
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}
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start[test_offset] = pattern;
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addr[test_offset] = pattern;
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WATCHDOG_RESET();
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/*
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* Check for addr bits stuck low or shorted.
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*/
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for (test_offset = 1; test_offset < len; test_offset <<= 1) {
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start[test_offset] = anti_pattern;
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for (test_offset = 1; test_offset < num_words; test_offset <<= 1) {
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addr[test_offset] = anti_pattern;
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for (offset = 1; offset < len; offset <<= 1) {
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temp = start[offset];
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for (offset = 1; offset < num_words; offset <<= 1) {
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temp = addr[offset];
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if ((temp != pattern) && (offset != test_offset)) {
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printf("\nFAILURE: Address bit stuck low or"
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" shorted @ 0x%.8lx: expected 0x%.8lx,"
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" actual 0x%.8lx\n",
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(ulong)&start[offset], pattern, temp);
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start_addr + offset, pattern, temp);
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errs++;
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if (ctrlc())
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return -1;
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}
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}
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start[test_offset] = pattern;
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addr[test_offset] = pattern;
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}
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/*
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@ -806,14 +801,14 @@ static ulong mem_test_alt(ulong start_addr, ulong end_addr)
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*
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* Returns: 0 if the test succeeds, 1 if the test fails.
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*/
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num_words = ((ulong)end - (ulong)start)/sizeof(vu_long) + 1;
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num_words++;
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/*
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* Fill memory with a known pattern.
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*/
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for (pattern = 1, offset = 0; offset < num_words; pattern++, offset++) {
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WATCHDOG_RESET();
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start[offset] = pattern;
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addr[offset] = pattern;
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}
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/*
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@ -821,18 +816,18 @@ static ulong mem_test_alt(ulong start_addr, ulong end_addr)
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*/
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for (pattern = 1, offset = 0; offset < num_words; pattern++, offset++) {
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WATCHDOG_RESET();
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temp = start[offset];
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temp = addr[offset];
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if (temp != pattern) {
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printf("\nFAILURE (read/write) @ 0x%.8lx:"
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" expected 0x%.8lx, actual 0x%.8lx)\n",
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(ulong)&start[offset], pattern, temp);
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start_addr + offset, pattern, temp);
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errs++;
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if (ctrlc())
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return -1;
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}
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anti_pattern = ~pattern;
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start[offset] = anti_pattern;
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addr[offset] = anti_pattern;
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}
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/*
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@ -841,28 +836,28 @@ static ulong mem_test_alt(ulong start_addr, ulong end_addr)
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for (pattern = 1, offset = 0; offset < num_words; pattern++, offset++) {
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WATCHDOG_RESET();
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anti_pattern = ~pattern;
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temp = start[offset];
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temp = addr[offset];
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if (temp != anti_pattern) {
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printf("\nFAILURE (read/write): @ 0x%.8lx:"
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" expected 0x%.8lx, actual 0x%.8lx)\n",
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(ulong)&start[offset], anti_pattern, temp);
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start_addr + offset, anti_pattern, temp);
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errs++;
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if (ctrlc())
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return -1;
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}
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start[offset] = 0;
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addr[offset] = 0;
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}
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return 0;
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}
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static ulong mem_test_quick(ulong start_addr, ulong end_addr, vu_long pattern,
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int iteration)
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static ulong mem_test_quick(vu_long *buf, ulong start_addr, ulong end_addr,
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vu_long pattern, int iteration)
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{
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vu_long *start, *end;
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vu_long *end;
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vu_long *addr;
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ulong errs = 0;
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ulong incr;
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ulong incr, length;
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ulong val, readback;
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/* Alternate the pattern */
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@ -880,14 +875,14 @@ static ulong mem_test_quick(ulong start_addr, ulong end_addr, vu_long pattern,
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else
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pattern = ~pattern;
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}
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start = (vu_long *)start_addr;
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end = (vu_long *)end_addr;
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length = (end_addr - start_addr) / sizeof(ulong);
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end = buf + length;
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printf("\rPattern %08lX Writing..."
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"%12s"
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"\b\b\b\b\b\b\b\b\b\b",
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pattern, "");
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for (addr = start, val = pattern; addr < end; addr++) {
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for (addr = buf, val = pattern; addr < end; addr++) {
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WATCHDOG_RESET();
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*addr = val;
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val += incr;
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@ -895,13 +890,16 @@ static ulong mem_test_quick(ulong start_addr, ulong end_addr, vu_long pattern,
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puts("Reading...");
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for (addr = start, val = pattern; addr < end; addr++) {
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for (addr = buf, val = pattern; addr < end; addr++) {
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WATCHDOG_RESET();
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readback = *addr;
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if (readback != val) {
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ulong offset = addr - buf;
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printf("\nMem error @ 0x%08X: "
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"found %08lX, expected %08lX\n",
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(uint)(uintptr_t)addr, readback, val);
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(uint)(uintptr_t)(start_addr + offset),
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readback, val);
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errs++;
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if (ctrlc())
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return -1;
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@ -921,6 +919,7 @@ static int do_mem_mtest(cmd_tbl_t *cmdtp, int flag, int argc,
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char * const argv[])
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{
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ulong start, end;
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vu_long *buf, *dummy;
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int iteration_limit;
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int ret;
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ulong errs = 0; /* number of errors, or -1 if interrupted */
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@ -956,6 +955,8 @@ static int do_mem_mtest(cmd_tbl_t *cmdtp, int flag, int argc,
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debug("%s:%d: start %#08lx end %#08lx\n", __func__, __LINE__,
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start, end);
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buf = map_sysmem(start, end - start);
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dummy = map_sysmem(CONFIG_SYS_MEMTEST_SCRATCH, sizeof(vu_long));
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for (iteration = 0;
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!iteration_limit || iteration < iteration_limit;
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iteration++) {
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@ -966,10 +967,27 @@ static int do_mem_mtest(cmd_tbl_t *cmdtp, int flag, int argc,
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printf("Iteration: %6d\r", iteration + 1);
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debug("\n");
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if (alt_test)
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errs = mem_test_alt(start, end);
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else
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errs = mem_test_quick(start, end, pattern, iteration);
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if (alt_test) {
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errs = mem_test_alt(buf, start, end, dummy);
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} else {
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errs = mem_test_quick(buf, start, end, pattern,
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iteration);
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}
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if (errs == -1UL)
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break;
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}
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/*
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* Work-around for eldk-4.2 which gives this warning if we try to
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* case in the unmap_sysmem() call:
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* warning: initialization discards qualifiers from pointer target type
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*/
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{
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void *vbuf = (void *)buf;
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void *vdummy = (void *)dummy;
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unmap_sysmem(vbuf);
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unmap_sysmem(vdummy);
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}
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if (errs == -1UL) {
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