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u-boot/lib
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Sean Anderson 4b2be78ab6 time: Fix get_ticks being non-monotonic 
get_ticks does not always succeed. Sometimes it can be called before the
timer has been initialized. If it does, it returns a negative errno.
This causes the timer to appear non-monotonic, because the value will
become much smaller after the timer is initialized.

No users of get_ticks which I checked handle errors of this kind. Further,
functions like tick_to_time mangle the result of get_ticks, making it very
unlikely that one could check for an error without suggesting a patch such
as this one.

This patch panics if we ever get an error. There are two cases in which
this can occur. The first is if we couldn't find/probe the timer for some
reason. One reason for this is if the timer is not available so early. This
likely indicates misconfiguration. Another reason is that the timer has an
invalid/missing device tree binding. In this case, panicing is also
correct. The second case covers errors calling get_count. This can only
occur if the timer is missing a get_count function (or on RISC-V, but that
should be fixed soon).

Fixes: c8a7ba9e6a
Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2020-10-14 11:16:34 -04:00
..
acpi acpi: Use I2cSerialBusV2() instead of I2cSerialBus() 2020-09-25 11:27:26 +08:00
aes fit: cipher: aes: allow to store the IV in the FIT image 2020-10-12 21:30:37 -04:00
at91 SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
bzip2 common: Drop log.h from common header 2020-05-18 21:19:18 -04:00
crypto lib/crypto: simplify public_key_verify_signature 2020-08-08 19:03:12 +02:00
dhry command: Remove the cmd_tbl_t typedef 2020-05-18 18:36:55 -04:00
efi common: Drop init.h from common header 2020-05-18 17:33:33 -04:00
efi_driver efi: Tidy up header includes 2020-08-03 22:19:54 -04:00
efi_loader efi_loader: QEMU CONFIG_EFI_GRUB_ARM32_WORKAROUND=n 2020-10-06 07:43:56 +02:00
efi_selftest efi: Fix typo in documentation 2020-10-06 07:43:56 +02:00
libavb common: Drop log.h from common header 2020-05-18 21:19:18 -04:00
libfdt fdt_region: move fdt_region.c to common/ from lib/libfdt/ 2020-04-26 14:23:55 -06:00
lzma common: Drop log.h from common header 2020-05-18 21:19:18 -04:00
lzo SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
optee optee: add property no-map to secure reserved memory 2020-09-22 12:54:13 -06:00
rsa lib: rsa: superfluous initialization in rsa_verify() 2020-10-12 21:30:38 -04:00
tizen SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
zlib include/u-boot, lib/zlib: add sources for zlib decompression 2020-08-07 22:31:32 -04:00
zstd dm: core: Create a new header file for 'compat' features 2020-02-05 19:33:46 -07:00
.gitignore lib: ignore oid_registry_data.c file 2020-01-22 17:47:57 -05:00
addr_map.c SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
aes.c common: Drop log.h from common header 2020-05-18 21:19:18 -04:00
asm-offsets.c common: Drop asm_offsets.h from common header 2020-05-18 21:19:23 -04:00
asn1_decoder.c common: Drop log.h from common header 2020-05-18 21:19:18 -04:00
bch.c common: Drop log.h from common header 2020-05-18 21:19:18 -04:00
binman.c binman: Add way to locate an entry in memory 2020-07-17 14:32:24 +08:00
bitrev.c lib: bitrev: Sync with Linux kernel v4.17 2018-09-18 00:01:18 -06:00
charset.c charset: Add support for calculating bytes occupied by a u16 string 2020-05-09 09:30:28 +02:00
circbuf.c common: Drop log.h from common header 2020-05-18 21:19:18 -04:00
crc7.c lib: add crc7 from Linux 2011-01-18 23:38:08 +01:00
crc8.c common: Drop linux/crc8.h 2019-12-02 18:23:07 -05:00
crc16.c Roll CRC16-CCITT into the hash infrastructure 2018-12-08 20:18:44 -05:00
crc32.c crc32: Use the crc.h header for crc functions 2019-12-02 18:23:08 -05:00
crc32c.c SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
ctype.c SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
date.c lib: add mktime64() for linux compatibility 2019-12-06 16:44:19 -05:00
display_options.c display_options: Drop #ifdef for MEM_SUPPORT_64BIT_DATA 2020-07-08 17:21:46 -04:00
div64.c common: Drop linux/bitops.h from common header 2020-05-18 21:19:23 -04:00
elf.c lib: elf: Move the generic elf loading/validating functions to lib 2020-03-03 13:08:14 +05:30
errno_str.c lib: errno: sync error codes 2019-10-31 07:22:53 -04:00
errno.c Add basic errno support. 2010-09-19 19:29:47 +02:00
fdtdec_common.c common: Drop log.h from common header 2020-05-18 21:19:18 -04:00
fdtdec_test.c command: Remove the cmd_tbl_t typedef 2020-05-18 18:36:55 -04:00
fdtdec.c fdtdec: correct test on return of fdt_node_offset_by_phandle 2020-10-06 09:07:54 -06:00
gunzip.c common: Drop part.h from common header 2020-05-18 17:33:33 -04:00
gzip.c common: Move gzip functions into a new gzip header 2019-08-11 16:43:41 -04:00
hang.c common: Move hang() to the same header as panic() 2020-01-17 17:53:40 -05:00
hashtable.c lib/hashtable: remove superfluous check 2020-10-12 21:30:37 -04:00
hexdump.c lib: do not provide hexdump in SPL 2020-04-24 10:51:32 -04:00
image-sparse.c common: Drop log.h from common header 2020-05-18 21:19:18 -04:00
Kconfig lib: Allow hexdump to be used in SPL 2020-10-10 16:49:58 -04:00
ldiv.c SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
linux_compat.c common: Drop net.h from common header 2020-05-18 17:33:31 -04:00
linux_string.c Make linux kernel string funcs available to tools 2012-12-13 11:46:07 -07:00
list_sort.c common: Drop log.h from common header 2020-05-18 21:19:18 -04:00
lmb.c CONFIG_NR_DRAM_BANKS: Remove unreferenced code as its always defined 2020-08-26 09:19:16 +02:00
lz4_wrapper.c lz4: fix decompressor on big-endian powerpc 2020-07-17 08:45:29 -04:00
lz4.c SPDX: Convert a few files that were missed before 2018-05-10 20:38:35 -04:00
Makefile lib: sscanf: add sscanf implementation 2020-08-14 15:18:30 -04:00
md5.c GCC47: Fix warning in md5.c 2012-04-29 14:14:08 +02:00
membuff.c common: Drop log.h from common header 2020-05-18 21:19:18 -04:00
net_utils.c common: Drop net.h from common header 2020-05-18 17:33:31 -04:00
of_live.c common: Drop log.h from common header 2020-05-18 21:19:18 -04:00
oid_registry.c lib: add oid registry utility 2019-12-06 16:44:20 -05:00
panic.c common: Drop linux/delay.h from common header 2020-05-18 21:19:23 -04:00
physmem.c common: Drop log.h from common header 2020-05-18 21:19:18 -04:00
qsort.c common: Drop log.h from common header 2020-05-18 21:19:18 -04:00
rand.c common: Move random-number functions into their own header 2019-12-02 18:23:07 -05:00
rbtree.c SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
rc4.c SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
sha1.c SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
sha256.c SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
sha512.c Add support for SHA384 and SHA512 2020-06-12 13:14:07 -04:00
slre.c common: Drop log.h from common header 2020-05-18 21:19:18 -04:00
smbios.c smbios: empty strings in smbios_add_string() 2020-06-05 04:04:41 +02:00
sscanf.c xen: Code style conformity 2020-08-24 14:11:31 -04:00
string.c string: Allow arch override of strndup() also 2020-02-05 19:33:46 -07:00
strto.c Revert "lib: Improve _parse_integer_fixup_radix base 16 detection" 2020-06-15 11:23:41 -04:00
tables_csum.c SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
time.c time: Fix get_ticks being non-monotonic 2020-10-14 11:16:34 -04:00
tiny-printf.c tiny-printf: Support %i 2020-05-01 11:03:24 -04:00
tpm-common.c common: Drop log.h from common header 2020-05-18 21:19:18 -04:00
tpm-utils.h tpm: Convert to use a device parameter 2018-11-29 09:30:06 -07:00
tpm-v1.c common: Drop log.h from common header 2020-05-18 21:19:18 -04:00
tpm-v2.c tpm: add TPM2_GetRandom command support 2020-07-08 15:38:32 -04:00
trace.c trace: clang compatible handling of gd register 2020-07-07 18:23:48 -04:00
uuid.c command: Remove the cmd_tbl_t typedef 2020-05-18 18:36:55 -04:00
vsprintf.c compiler*.h: sync include/linux/compiler*.h with Linux 5.7-rc5 2020-07-01 11:48:05 -04:00
xxhash.c lib: Add xxhash support 2019-05-05 08:48:50 -04:00