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authorAaron Durbin <adurbin@chromium.org>2017-08-01 10:27:10 -0600
committerAaron Durbin <adurbin@chromium.org>2017-08-04 04:29:57 +0000
commitdfdea2aa40ab5bebea580601f6cef70bec25e177 (patch)
tree23682d5d296c79f2a2bb71c98b4fd5300fdea99f /src/include/cbmem.h
parent403fdbc2265fc1192798cec0878c8e9b587732e3 (diff)
downloadcoreboot-dfdea2aa40ab5bebea580601f6cef70bec25e177.tar.xz
lib/cbmem: provide optional cbmem top initialization hook
Provide a hook to allow an optional one-time cbmem_top() initialization. The new function, cbmem_top_init(), is called on the first expected initialization of cbmem based on the Kconfig options LATE_CBMEM_INIT and EARLY_CBMEM_INIT. Change-Id: I89edd2d11f226217c8e2aaca829b4f375a2cff28 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Signed-off-by: John Zhao <john.zhao@intel.com> Reviewed-on: https://review.coreboot.org/20847 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Furquan Shaikh <furquan@google.com>
Diffstat (limited to 'src/include/cbmem.h')
-rw-r--r--src/include/cbmem.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/src/include/cbmem.h b/src/include/cbmem.h
index b2d2a8be6c..007bc54b76 100644
--- a/src/include/cbmem.h
+++ b/src/include/cbmem.h
@@ -64,6 +64,11 @@ int cbmem_initialize_id_size(u32 id, u64 size);
void cbmem_initialize_empty(void);
void cbmem_initialize_empty_id_size(u32 id, u64 size);
+/* Optional hook for platforms to initialize cbmem_top() value. When employed
+ * it's called a single time during boot at cbmem initialization/recovery
+ * time. */
+void cbmem_top_init(void);
+
/* Return the top address for dynamic cbmem. The address returned needs to
* be consistent across romstage and ramstage, and it is required to be
* below 4GiB.