diff options
| author | Julius Werner <jwerner@chromium.org> | 2017-12-12 14:23:26 -0800 |
|---|---|---|
| committer | Julius Werner <jwerner@chromium.org> | 2017-12-12 15:00:34 -0800 |
| commit | 155a10068ac6feefcc783b7b023fc90390e5cc44 (patch) | |
| tree | fe2f30754806140be39d1c816da3faebf99b02b6 /include | |
| parent | 211d307c6bfadbe44aa27998e105436143e1b147 (diff) | |
utils_def: Add REGSZ and make BIT() assembly-compatible
In assembly code it can be useful to have a constant for the width of a
register in the current architecture, so this patch adds one to
<utils_def.h> and replaces the existing custom one in crash_reporting.S
with that. It also fixes up the BIT() macro in the same file so that it
can be safely used in assembly code.
Change-Id: I10513a311f3379e767396e6ddfbae8d2d8201464
Signed-off-by: Julius Werner <jwerner@chromium.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/lib/utils_def.h | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/include/lib/utils_def.h b/include/lib/utils_def.h index 185a1c12..bda3b073 100644 --- a/include/lib/utils_def.h +++ b/include/lib/utils_def.h @@ -16,7 +16,7 @@ #define SIZE_FROM_LOG2_WORDS(n) (4 << (n)) -#define BIT(nr) (1ULL << (nr)) +#define BIT(nr) (ULL(1) << (nr)) /* * This variant of div_round_up can be used in macro definition but should not @@ -84,6 +84,13 @@ # define ULL(_x) (_x##ull) #endif +/* Register size of the current architecture. */ +#ifdef AARCH32 +#define REGSZ U(4) +#else +#define REGSZ U(8) +#endif + /* * Test for the current architecture version to be at least the version * expected. |