X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=include%2Flinux%2Fkernel.h;h=a85c15d8dc28d31e7a1b7be06ac1b61d1f84f419;hb=216800acf1fbf9f498455bf3c92d4513d9a4c681;hp=0b616713cc3b77d8d9f8d3da7e6445f5bf72879d;hpb=272a1acf1ef574356e5da51f7d6b3b07ab4e9b83;p=oweals%2Fu-boot.git

diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index 0b616713cc..a85c15d8dc 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -33,11 +33,16 @@
 #define S64_MAX		((s64)(U64_MAX>>1))
 #define S64_MIN		((s64)(-S64_MAX - 1))
 
+/* Aliases defined by stdint.h */
+#define UINT32_MAX	U32_MAX
+#define UINT64_MAX	U64_MAX
+
 #define STACK_MAGIC	0xdeadbeef
 
 #define REPEAT_BYTE(x)	((~0ul / 0xff) * (x))
 
 #define ALIGN(x,a)		__ALIGN_MASK((x),(typeof(x))(a)-1)
+#define ALIGN_DOWN(x, a)	ALIGN((x) - ((a) - 1), (a))
 #define __ALIGN_MASK(x,mask)	(((x)+(mask))&~(mask))
 #define PTR_ALIGN(p, a)		((typeof(p))ALIGN((unsigned long)(p), (a)))
 #define IS_ALIGNED(x, a)		(((x) & ((typeof(x))(a) - 1)) == 0)
@@ -57,6 +62,11 @@
 #define FIELD_SIZEOF(t, f) (sizeof(((t*)0)->f))
 #define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d))
 
+#define DIV_ROUND_DOWN_ULL(ll, d) \
+	({ unsigned long long _tmp = (ll); do_div(_tmp, d); _tmp; })
+
+#define DIV_ROUND_UP_ULL(ll, d)		DIV_ROUND_DOWN_ULL((ll) + (d) - 1, (d))
+
 #if BITS_PER_LONG == 32
 # define DIV_ROUND_UP_SECTOR_T(ll,d) DIV_ROUND_UP_ULL(ll, d)
 #else
@@ -92,6 +102,18 @@
 		(((__x) - ((__d) / 2)) / (__d));	\
 }							\
 )
+/*
+ * Same as above but for u64 dividends. divisor must be a 32-bit
+ * number.
+ */
+#define DIV_ROUND_CLOSEST_ULL(x, divisor)(		\
+{							\
+	typeof(divisor) __d = divisor;			\
+	unsigned long long _tmp = (x) + (__d) / 2;	\
+	do_div(_tmp, __d);				\
+	_tmp;						\
+}							\
+)
 
 /*
  * Multiplies an integer by a fraction, while avoiding unnecessary