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authorAaron Durbin <adurbin@chromium.org>2016-12-14 14:40:43 -0600
committerAaron Durbin <adurbin@chromium.org>2016-12-15 23:11:13 +0100
commitb2a5f4833d022d16c934f7dad30cdfa8fb28863c (patch)
treef218d0bbc608078e5bfa4bb468742ca7ffcc3bea /src/include
parentdfcc60c385c70ca2d003d0f1ff543bbc74e60adc (diff)
downloadcoreboot-b2a5f4833d022d16c934f7dad30cdfa8fb28863c.tar.xz
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')
-rw-r--r--src/include/cbmem.h16
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_ */