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bloblist: Support relocating to a larger space

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Typically in TPL/SPL the bloblist is quite small. But U-Boot proper may
want to add a lot more to it, such as ACPI tables.

Add a way to expand the bloblist by relocating it in U-Boot proper, along
with the other relocation activities.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2021-01-13 20:29:43 -07:00 • committed by Tom Rini
parent 09d9ba9097
commit 9fe064646d
5 changed files with 73 additions and 4 deletions
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36
test/bloblist.c
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@ -347,6 +347,42 @@ static int bloblist_test_align(struct unit_test_state *uts)
}
BLOBLIST_TEST(bloblist_test_align, 0);
/* Test relocation of a bloblist */
static int bloblist_test_reloc(struct unit_test_state *uts)
{
const uint large_size = TEST_BLOBLIST_SIZE;
const uint small_size = 0x20;
void *old_ptr, *new_ptr;
void *blob1, *blob2;
ulong new_addr;
ulong new_size;
ut_assertok(bloblist_new(TEST_ADDR, TEST_BLOBLIST_SIZE, 0));
old_ptr = map_sysmem(TEST_ADDR, TEST_BLOBLIST_SIZE);
/* Add one blob and then one that won't fit */
blob1 = bloblist_add(TEST_TAG, small_size, 0);
ut_assertnonnull(blob1);
blob2 = bloblist_add(TEST_TAG2, large_size, 0);
ut_assertnull(blob2);
/* Relocate the bloblist somewhere else, a bit larger */
new_addr = TEST_ADDR + TEST_BLOBLIST_SIZE;
new_size = TEST_BLOBLIST_SIZE + 0x100;
new_ptr = map_sysmem(new_addr, TEST_BLOBLIST_SIZE);
bloblist_reloc(new_ptr, new_size, old_ptr, TEST_BLOBLIST_SIZE);
gd->bloblist = new_ptr;
/* Check the old blob is there and that we can now add the bigger one */
ut_assertnonnull(bloblist_find(TEST_TAG, small_size));
ut_assertnull(bloblist_find(TEST_TAG2, small_size));
blob2 = bloblist_add(TEST_TAG2, large_size, 0);
ut_assertnonnull(blob2);
return 0;
}
BLOBLIST_TEST(bloblist_test_reloc, 0);
int do_ut_bloblist(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{