diff options
| author | Simon Glass <sjg@chromium.org> | 2020-09-19 18:49:29 -0600 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2020-10-06 09:07:54 -0600 |
| commit | 4c1497e77661eea47d3dbb9bee029532cc0da198 (patch) | |
| tree | 74370564fedab53ab0b2dfc367acd80a836b87de /common/bloblist.c | |
| parent | 751b7c79634003b4cb326b79e80202ea45b75fc8 (diff) | |
bloblist: Allow custom alignment for blobs
Some blobs need a larger alignment than the default. For example, ACPI
tables often start at a 4KB boundary. Add support for this.
Update the size of the test blob to allow these larger records.
Signed-off-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'common/bloblist.c')
| -rw-r--r-- | common/bloblist.c | 32 |
1 files changed, 20 insertions, 12 deletions
diff --git a/common/bloblist.c b/common/bloblist.c index 173f28d8ec..33b5862380 100644 --- a/common/bloblist.c +++ b/common/bloblist.c @@ -83,18 +83,25 @@ static struct bloblist_rec *bloblist_findrec(uint tag) return NULL; } -static int bloblist_addrec(uint tag, int size, struct bloblist_rec **recp) +static int bloblist_addrec(uint tag, int size, int align, + struct bloblist_rec **recp) { struct bloblist_hdr *hdr = gd->bloblist; struct bloblist_rec *rec; int data_start, new_alloced; + if (!align) + align = BLOBLIST_ALIGN; + /* Figure out where the new data will start */ - data_start = hdr->alloced + sizeof(*rec); - data_start = ALIGN(data_start, BLOBLIST_ALIGN); + data_start = map_to_sysmem(hdr) + hdr->alloced + sizeof(*rec); + + /* Align the address and then calculate the offset from ->alloced */ + data_start = ALIGN(data_start, align) - map_to_sysmem(hdr); /* Calculate the new allocated total */ - new_alloced = data_start + ALIGN(size, BLOBLIST_ALIGN); + new_alloced = data_start + ALIGN(size, align); + if (new_alloced >= hdr->size) { log(LOGC_BLOBLIST, LOGL_ERR, "Failed to allocate %x bytes size=%x, need size=%x\n", @@ -117,7 +124,8 @@ static int bloblist_addrec(uint tag, int size, struct bloblist_rec **recp) return 0; } -static int bloblist_ensurerec(uint tag, struct bloblist_rec **recp, int size) +static int bloblist_ensurerec(uint tag, struct bloblist_rec **recp, int size, + int align) { struct bloblist_rec *rec; @@ -130,7 +138,7 @@ static int bloblist_ensurerec(uint tag, struct bloblist_rec **recp, int size) } else { int ret; - ret = bloblist_addrec(tag, size, &rec); + ret = bloblist_addrec(tag, size, align, &rec); if (ret) return ret; } @@ -152,22 +160,22 @@ void *bloblist_find(uint tag, int size) return (void *)rec + rec->hdr_size; } -void *bloblist_add(uint tag, int size) +void *bloblist_add(uint tag, int size, int align) { struct bloblist_rec *rec; - if (bloblist_addrec(tag, size, &rec)) + if (bloblist_addrec(tag, size, align, &rec)) return NULL; return (void *)rec + rec->hdr_size; } -int bloblist_ensure_size(uint tag, int size, void **blobp) +int bloblist_ensure_size(uint tag, int size, int align, void **blobp) { struct bloblist_rec *rec; int ret; - ret = bloblist_ensurerec(tag, &rec, size); + ret = bloblist_ensurerec(tag, &rec, size, align); if (ret) return ret; *blobp = (void *)rec + rec->hdr_size; @@ -179,7 +187,7 @@ void *bloblist_ensure(uint tag, int size) { struct bloblist_rec *rec; - if (bloblist_ensurerec(tag, &rec, size)) + if (bloblist_ensurerec(tag, &rec, size, 0)) return NULL; return (void *)rec + rec->hdr_size; @@ -190,7 +198,7 @@ int bloblist_ensure_size_ret(uint tag, int *sizep, void **blobp) struct bloblist_rec *rec; int ret; - ret = bloblist_ensurerec(tag, &rec, *sizep); + ret = bloblist_ensurerec(tag, &rec, *sizep, 0); if (ret == -ESPIPE) *sizep = rec->size; else if (ret) |