diff options
| author | Aaron Durbin <adurbin@chromium.org> | 2016-12-14 14:40:43 -0600 |
|---|---|---|
| committer | Aaron Durbin <adurbin@chromium.org> | 2016-12-15 23:11:13 +0100 |
| commit | b2a5f4833d022d16c934f7dad30cdfa8fb28863c (patch) | |
| tree | f218d0bbc608078e5bfa4bb468742ca7ffcc3bea /src/include/cbmem.h | |
| parent | dfcc60c385c70ca2d003d0f1ff543bbc74e60adc (diff) | |
lib/cbmem: allow anyone to use cbmem_possibly_online()
The cbmem_possibly_online() is a helpful construct. Therefore,
push it into cbmem.h so other users can take advantage of it.
BUG=chrome-os-partner:60592
BRANCH=reef
Change-Id: If5a1c7815ed03874dcf141014b8ffefb82b7cc92
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/17868
Tested-by: build bot (Jenkins)
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Diffstat (limited to 'src/include/cbmem.h')
| -rw-r--r-- | src/include/cbmem.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/src/include/cbmem.h b/src/include/cbmem.h index 5c4b7c7189..c13fe925ad 100644 --- a/src/include/cbmem.h +++ b/src/include/cbmem.h @@ -158,4 +158,20 @@ void set_top_of_ram(uint64_t ramtop); void backup_top_of_ram(uint64_t ramtop); #endif +/* + * Returns 0 for the stages where we know that cbmem does not come online. + * Even if this function returns 1 for romstage, depending upon the point in + * bootup, cbmem might not actually be online. + */ +static inline int cbmem_possibly_online(void) +{ + if (ENV_BOOTBLOCK) + return 0; + + if (ENV_VERSTAGE && IS_ENABLED(CONFIG_VBOOT_STARTS_IN_BOOTBLOCK)) + return 0; + + return 1; +} + #endif /* _CBMEM_H_ */ |