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bloblist: Adjust API to align in powers of 2

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The updated bloblist structure stores the alignment as a power-of-two
value in its structures. Adjust the API to use this, to avoid needing to
calling ilog2().
Update the bloblist alignment from 16 bytes to 8 bytes.
Drop a stale comment while we are here.

Signed-off-by: Simon Glass <sjg@chromium.org>
Co-developed-by: Raymond Mao <raymond.mao@linaro.org>
Signed-off-by: Raymond Mao <raymond.mao@linaro.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
This commit is contained in:
Simon Glass
2023-12-27 13:07:00 -08:00
parent e748e4b780
commit 1a2e02f955
4 changed files with 22 additions and 21 deletions
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12
include/bloblist.h
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@@ -76,7 +76,9 @@
enum {
BLOBLIST_VERSION = 0,
BLOBLIST_MAGIC = 0xb00757a3,
BLOBLIST_ALIGN = 16,
BLOBLIST_ALIGN_LOG2 = 3,
BLOBLIST_ALIGN = 1 << BLOBLIST_ALIGN_LOG2,
};
/* Supported tags - add new ones to tag_name in bloblist.c */
@@ -254,11 +256,11 @@ void *bloblist_find(uint tag, int size);
*
* @tag: Tag to add (enum bloblist_tag_t)
* @size: Size of the blob
* @align: Alignment of the blob (in bytes), 0 for default
* @align_log2: Alignment of the blob (in bytes log2), 0 for default
* Return: pointer to the newly added block, or NULL if there is not enough
* space for the blob
*/
void *bloblist_add(uint tag, int size, int align);
void *bloblist_add(uint tag, int size, int align_log2);
/**
* bloblist_ensure_size() - Find or add a blob
@@ -268,11 +270,11 @@ void *bloblist_add(uint tag, int size, int align);
* @tag: Tag to add (enum bloblist_tag_t)
* @size: Size of the blob
* @blobp: Returns a pointer to blob on success
* @align: Alignment of the blob (in bytes), 0 for default
* @align_log2: Alignment of the blob (in bytes log2), 0 for default
* Return: 0 if OK, -ENOSPC if it is missing and could not be added due to lack
* of space, or -ESPIPE it exists but has the wrong size
*/
int bloblist_ensure_size(uint tag, int size, int align, void **blobp);
int bloblist_ensure_size(uint tag, int size, int align_log2, void **blobp);
/**
* bloblist_ensure() - Find or add a blob