From b5211ef2e7da1c1b8f8bb0208e7b2f44aa859ef7 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ky=C3=B6sti=20M=C3=A4lkki?= Date: Fri, 1 Jun 2018 07:11:25 +0300 Subject: lib/cbfs: Optimise LZMA away from romstage MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 Reviewed-on: https://review.coreboot.org/26759 Tested-by: build bot (Jenkins) Reviewed-by: Nico Huber --- src/lib/cbfs.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'src/lib/cbfs.c') 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; -- cgit v1.2.3