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| author | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2018-06-01 07:11:25 +0300 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2018-06-04 08:19:44 +0000 |
| commit | b5211ef2e7da1c1b8f8bb0208e7b2f44aa859ef7 (patch) | |
| tree | fcbb15c9a60e9c45e1619fa1437d2a0742076c9b /src | |
| parent | 0863f0be89fb0117e9141a6a6b2b25daa74bc9f9 (diff) | |
| download | coreboot-b5211ef2e7da1c1b8f8bb0208e7b2f44aa859ef7.tar.xz | |
lib/cbfs: Optimise LZMA away from romstage
If we have POSTCAR_STAGE there is no need for
romstage to include LZMA decompression code.
Reduces romstage by about 4 kiB on x86.
Change-Id: I4c475986b2a94e5cd540c3eead433ed6c0a815ed
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/26759
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Diffstat (limited to 'src')
| -rw-r--r-- | src/lib/cbfs.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/lib/cbfs.c b/src/lib/cbfs.c index 87ab3877f8..9938e6abbe 100644 --- a/src/lib/cbfs.c +++ b/src/lib/cbfs.c @@ -119,8 +119,11 @@ size_t cbfs_load_and_decompress(const struct region_device *rdev, size_t offset, return out_size; case CBFS_COMPRESS_LZMA: + /* We assume here romstage and postcar are never compressed. */ if (ENV_BOOTBLOCK || ENV_VERSTAGE) return 0; + if (ENV_ROMSTAGE && IS_ENABLED(CONFIG_POSTCAR_STAGE)) + return 0; if ((ENV_ROMSTAGE || ENV_POSTCAR) && !IS_ENABLED(CONFIG_COMPRESS_RAMSTAGE)) return 0; |