diff options
author | Daniel Vetter <daniel.vetter@ffwll.ch> | 2021-12-14 09:43:25 +0100 |
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committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2021-12-14 10:24:28 +0100 |
commit | 99b03ca651f1c409d296d6c6e9440d9b005c722f (patch) | |
tree | 8773b8cbab631258b561ddb3d9b219072095bee4 /tools/include/linux/math.h | |
parent | 211b4dbc070090b4183d6f9db7dd3bd4e6170447 (diff) | |
parent | 2585cf9dfaaddf00b069673f27bb3f8530e2039c (diff) |
Merge v5.16-rc5 into drm-next
Thomas Zimmermann requested a fixes backmerge, specifically also for
96c5f82ef0a1 ("drm/vc4: fix error code in vc4_create_object()")
Just a bunch of adjacent changes conflicts, even the big pile of them
in vc4.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'tools/include/linux/math.h')
-rw-r--r-- | tools/include/linux/math.h | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/tools/include/linux/math.h b/tools/include/linux/math.h new file mode 100644 index 000000000000..4e7af99ec9eb --- /dev/null +++ b/tools/include/linux/math.h @@ -0,0 +1,25 @@ +#ifndef _TOOLS_MATH_H +#define _TOOLS_MATH_H + +/* + * This looks more complex than it should be. But we need to + * get the type for the ~ right in round_down (it needs to be + * as wide as the result!), and we want to evaluate the macro + * arguments just once each. + */ +#define __round_mask(x, y) ((__typeof__(x))((y)-1)) +#define round_up(x, y) ((((x)-1) | __round_mask(x, y))+1) +#define round_down(x, y) ((x) & ~__round_mask(x, y)) + +#define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d)) + +#ifndef roundup +#define roundup(x, y) ( \ +{ \ + const typeof(y) __y = y; \ + (((x) + (__y - 1)) / __y) * __y; \ +} \ +) +#endif + +#endif |