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authorJani Nikula <jani.nikula@intel.com>2024-08-01 13:06:09 +0300
committerJani Nikula <jani.nikula@intel.com>2024-08-01 13:06:09 +0300
commit3663e2c4bc45fcdc71931fcbfcbfbf9b71f55c83 (patch)
tree3927fa90c7faa89131fcf2e789ca9de97a65dc5f /include/linux/math64.h
parent688c43dd6ca9e0cd0568868aefca5b041695c3f4 (diff)
parent8400291e289ee6b2bf9779ff1c83a291501f017b (diff)
downloadlinux-3663e2c4bc45fcdc71931fcbfcbfbf9b71f55c83.tar.xz
Merge drm/drm-next into drm-intel-next
Sync with v6.11-rc1 in general, and specifically get the new BACKLIGHT_POWER_ constants for power states. Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Diffstat (limited to 'include/linux/math64.h')
-rw-r--r--include/linux/math64.h28
1 files changed, 28 insertions, 0 deletions
diff --git a/include/linux/math64.h b/include/linux/math64.h
index d34def7f9a8c..6aaccc1626ab 100644
--- a/include/linux/math64.h
+++ b/include/linux/math64.h
@@ -298,6 +298,19 @@ u64 mul_u64_u64_div_u64(u64 a, u64 mul, u64 div);
({ u64 _tmp = (d); div64_u64((ll) + _tmp - 1, _tmp); })
/**
+ * DIV_U64_ROUND_UP - unsigned 64bit divide with 32bit divisor rounded up
+ * @ll: unsigned 64bit dividend
+ * @d: unsigned 32bit divisor
+ *
+ * Divide unsigned 64bit dividend by unsigned 32bit divisor
+ * and round up.
+ *
+ * Return: dividend / divisor rounded up
+ */
+#define DIV_U64_ROUND_UP(ll, d) \
+ ({ u32 _tmp = (d); div_u64((ll) + _tmp - 1, _tmp); })
+
+/**
* DIV64_U64_ROUND_CLOSEST - unsigned 64bit divide with 64bit divisor rounded to nearest integer
* @dividend: unsigned 64bit dividend
* @divisor: unsigned 64bit divisor
@@ -342,4 +355,19 @@ u64 mul_u64_u64_div_u64(u64 a, u64 mul, u64 div);
div_s64((__x - (__d / 2)), __d); \
} \
)
+
+/**
+ * roundup_u64 - Round up a 64bit value to the next specified 32bit multiple
+ * @x: the value to up
+ * @y: 32bit multiple to round up to
+ *
+ * Rounds @x to the next multiple of @y. For 32bit @x values, see roundup and
+ * the faster round_up() for powers of 2.
+ *
+ * Return: rounded up value.
+ */
+static inline u64 roundup_u64(u64 x, u32 y)
+{
+ return DIV_U64_ROUND_UP(x, y) * y;
+}
#endif /* _LINUX_MATH64_H */