diff options
| author | Reka Norman <rekanorman@chromium.org> | 2022-08-03 10:22:32 +1000 |
|---|---|---|
| committer | Martin L Roth <gaumless@gmail.com> | 2022-08-07 19:28:09 +0000 |
| commit | abbfa555b02aa7c905f8cca27a22000c3bd7e47c (patch) | |
| tree | 1393224f8e8cba5ae1ddfd8deabe28531908cd24 /src | |
| parent | d454f86ed8603dc0ea17aa0fef2ef8e8888d66f9 (diff) | |
commonlib/timestamp_serialized: Add comment explaining "ignore for x86"
BUG=b:240624460
TEST=None
Signed-off-by: Reka Norman <rekanorman@chromium.org>
Change-Id: I8542c9bb624a366bc1bb01f6eae66ba97520d19c
Reviewed-on: https://review.coreboot.org/c/coreboot/+/66381
Reviewed-by: Julius Werner <jwerner@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src')
| -rw-r--r-- | src/commonlib/include/commonlib/timestamp_serialized.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/commonlib/include/commonlib/timestamp_serialized.h b/src/commonlib/include/commonlib/timestamp_serialized.h index bc2152eab4..4b1001ef39 100644 --- a/src/commonlib/include/commonlib/timestamp_serialized.h +++ b/src/commonlib/include/commonlib/timestamp_serialized.h @@ -199,6 +199,14 @@ static const struct timestamp_id_to_name { TS_NAME_DEF(TS_BOOTBLOCK_END, 0, "end of bootblock"), TS_NAME_DEF(TS_COPYROM_START, TS_COPYROM_END, "starting to load romstage"), TS_NAME_DEF(TS_COPYROM_END, 0, "finished loading romstage"), + /* + * "ignore for x86": On platforms with memory-mapped flash, it's + * impossible to separate loading times from decompression times because + * the flash accesses happen in the background as the decompression is + * running. So it makes more sense to consider the total loading + + * decompression time by looking at the timestamps before and after the + * decompression timestamps. + */ TS_NAME_DEF(TS_ULZMA_START, TS_ULZMA_END, "starting LZMA decompress (ignore for x86)"), TS_NAME_DEF(TS_ULZMA_END, 0, "finished LZMA decompress (ignore for x86)"), TS_NAME_DEF(TS_ULZ4F_START, TS_ULZ4F_END, "starting LZ4 decompress (ignore for x86)"), |