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| author | Jan Dabros <jsd@semihalf.com> | 2020-07-16 13:45:49 +0200 |
|---|---|---|
| committer | Angel Pons <th3fanbus@gmail.com> | 2020-07-30 17:13:28 +0000 |
| commit | 821b1e2f28b875f353b30bcd6b286d3eeae85c7b (patch) | |
| tree | 04bd4c1f57a390c601514f67014bf1ce35bff34a /src/lib/bootmem.c | |
| parent | 1756e10a3460435a475c1bde06a2587e5da24d84 (diff) | |
| download | coreboot-821b1e2f28b875f353b30bcd6b286d3eeae85c7b.tar.xz | |
lib/bootmem.c: Improve bootmem_allocate_buffer algorithm
Since regions in bootmem are sorted by increasing base address, we may
bail out of the search loop as soon as the region_base is bigger than
the max address allowed.
Signed-off-by: Jan Dabros <jsd@semihalf.com>
Change-Id: I44b44bf9618fd0615103cbf74271235d61d49473
Reviewed-on: https://review.coreboot.org/c/coreboot/+/43512
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Paul Fagerburg <pfagerburg@chromium.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/lib/bootmem.c')
| -rw-r--r-- | src/lib/bootmem.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/src/lib/bootmem.c b/src/lib/bootmem.c index fa1f8bc6fd..1fe23c2828 100644 --- a/src/lib/bootmem.c +++ b/src/lib/bootmem.c @@ -231,15 +231,15 @@ void *bootmem_allocate_buffer(size_t size) size = ALIGN(size, 4096); region = NULL; memranges_each_entry(r, &bootmem) { + if (range_entry_base(r) >= max_addr) + break; + if (range_entry_size(r) < size) continue; if (range_entry_tag(r) != BM_MEM_RAM) continue; - if (range_entry_base(r) >= max_addr) - continue; - end = range_entry_end(r); if (end > max_addr) end = max_addr; |