eabdd0252a
The value from raw_read_cntfrq_el0() could be large enough to cause overflow when multiplied by USECS_PER_SEC. To prevent this, both USECS_PER_SEC and hz can be reduced by dividing them by their GCD. This patch also modifies the return type of `timer_hz()` from `uint64_t` to `uint32_t`, assuming that in practice the timestamp counter should never be that fast. BUG=b:307790895 TEST=boot to kernel and check the timestamps from `cbmem` Change-Id: Ia55532490651fcf47128b83a8554751f050bcc89 Signed-off-by: Yidi Lin <yidilin@chromium.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/78888 Reviewed-by: Julius Werner <jwerner@chromium.org> Reviewed-by: Yu-Ping Wu <yupingso@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org> |
||
|---|---|---|
| .. | ||
| args.c | ||
| console.c | ||
| coreboot.c | ||
| ctype.c | ||
| die.c | ||
| exec.c | ||
| fmap.c | ||
| fpmath.c | ||
| getopt_long.c | ||
| hexdump.c | ||
| ipchecksum.c | ||
| lib.c | ||
| libgcc.c | ||
| lp_vboot.c | ||
| Makefile.inc | ||
| malloc.c | ||
| memory.c | ||
| printf.c | ||
| qsort.c | ||
| rand.c | ||
| readline.c | ||
| string.c | ||
| strlcpy.c | ||
| sysinfo.c | ||
| time.c | ||