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authorYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 12:17:53 -0700
committerYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 15:44:42 -0700
commit9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch)
tree1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/tools/include/asm-generic/bitops
parent98260f3884f4a202f9ca5eabed40b1354c489b29 (diff)
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/tools/include/asm-generic/bitops')
-rw-r--r--kernel/tools/include/asm-generic/bitops/__ffs.h43
-rw-r--r--kernel/tools/include/asm-generic/bitops/__fls.h1
-rw-r--r--kernel/tools/include/asm-generic/bitops/arch_hweight.h1
-rw-r--r--kernel/tools/include/asm-generic/bitops/atomic.h22
-rw-r--r--kernel/tools/include/asm-generic/bitops/const_hweight.h1
-rw-r--r--kernel/tools/include/asm-generic/bitops/find.h33
-rw-r--r--kernel/tools/include/asm-generic/bitops/fls.h1
-rw-r--r--kernel/tools/include/asm-generic/bitops/fls64.h1
-rw-r--r--kernel/tools/include/asm-generic/bitops/hweight.h7
9 files changed, 110 insertions, 0 deletions
diff --git a/kernel/tools/include/asm-generic/bitops/__ffs.h b/kernel/tools/include/asm-generic/bitops/__ffs.h
new file mode 100644
index 000000000..c94175015
--- /dev/null
+++ b/kernel/tools/include/asm-generic/bitops/__ffs.h
@@ -0,0 +1,43 @@
+#ifndef _TOOLS_LINUX_ASM_GENERIC_BITOPS___FFS_H_
+#define _TOOLS_LINUX_ASM_GENERIC_BITOPS___FFS_H_
+
+#include <asm/types.h>
+
+/**
+ * __ffs - find first bit in word.
+ * @word: The word to search
+ *
+ * Undefined if no bit exists, so code should check against 0 first.
+ */
+static __always_inline unsigned long __ffs(unsigned long word)
+{
+ int num = 0;
+
+#if __BITS_PER_LONG == 64
+ if ((word & 0xffffffff) == 0) {
+ num += 32;
+ word >>= 32;
+ }
+#endif
+ if ((word & 0xffff) == 0) {
+ num += 16;
+ word >>= 16;
+ }
+ if ((word & 0xff) == 0) {
+ num += 8;
+ word >>= 8;
+ }
+ if ((word & 0xf) == 0) {
+ num += 4;
+ word >>= 4;
+ }
+ if ((word & 0x3) == 0) {
+ num += 2;
+ word >>= 2;
+ }
+ if ((word & 0x1) == 0)
+ num += 1;
+ return num;
+}
+
+#endif /* _TOOLS_LINUX_ASM_GENERIC_BITOPS___FFS_H_ */
diff --git a/kernel/tools/include/asm-generic/bitops/__fls.h b/kernel/tools/include/asm-generic/bitops/__fls.h
new file mode 100644
index 000000000..2218b9add
--- /dev/null
+++ b/kernel/tools/include/asm-generic/bitops/__fls.h
@@ -0,0 +1 @@
+#include <../../../../include/asm-generic/bitops/__fls.h>
diff --git a/kernel/tools/include/asm-generic/bitops/arch_hweight.h b/kernel/tools/include/asm-generic/bitops/arch_hweight.h
new file mode 100644
index 000000000..318bb2b20
--- /dev/null
+++ b/kernel/tools/include/asm-generic/bitops/arch_hweight.h
@@ -0,0 +1 @@
+#include "../../../../include/asm-generic/bitops/arch_hweight.h"
diff --git a/kernel/tools/include/asm-generic/bitops/atomic.h b/kernel/tools/include/asm-generic/bitops/atomic.h
new file mode 100644
index 000000000..4bccd7c3d
--- /dev/null
+++ b/kernel/tools/include/asm-generic/bitops/atomic.h
@@ -0,0 +1,22 @@
+#ifndef _TOOLS_LINUX_ASM_GENERIC_BITOPS_ATOMIC_H_
+#define _TOOLS_LINUX_ASM_GENERIC_BITOPS_ATOMIC_H_
+
+#include <asm/types.h>
+
+static inline void set_bit(int nr, unsigned long *addr)
+{
+ addr[nr / __BITS_PER_LONG] |= 1UL << (nr % __BITS_PER_LONG);
+}
+
+static inline void clear_bit(int nr, unsigned long *addr)
+{
+ addr[nr / __BITS_PER_LONG] &= ~(1UL << (nr % __BITS_PER_LONG));
+}
+
+static __always_inline int test_bit(unsigned int nr, const unsigned long *addr)
+{
+ return ((1UL << (nr % __BITS_PER_LONG)) &
+ (((unsigned long *)addr)[nr / __BITS_PER_LONG])) != 0;
+}
+
+#endif /* _TOOLS_LINUX_ASM_GENERIC_BITOPS_ATOMIC_H_ */
diff --git a/kernel/tools/include/asm-generic/bitops/const_hweight.h b/kernel/tools/include/asm-generic/bitops/const_hweight.h
new file mode 100644
index 000000000..0afd644af
--- /dev/null
+++ b/kernel/tools/include/asm-generic/bitops/const_hweight.h
@@ -0,0 +1 @@
+#include "../../../../include/asm-generic/bitops/const_hweight.h"
diff --git a/kernel/tools/include/asm-generic/bitops/find.h b/kernel/tools/include/asm-generic/bitops/find.h
new file mode 100644
index 000000000..31f51547f
--- /dev/null
+++ b/kernel/tools/include/asm-generic/bitops/find.h
@@ -0,0 +1,33 @@
+#ifndef _TOOLS_LINUX_ASM_GENERIC_BITOPS_FIND_H_
+#define _TOOLS_LINUX_ASM_GENERIC_BITOPS_FIND_H_
+
+#ifndef find_next_bit
+/**
+ * find_next_bit - find the next set bit in a memory region
+ * @addr: The address to base the search on
+ * @offset: The bitnumber to start searching at
+ * @size: The bitmap size in bits
+ *
+ * Returns the bit number for the next set bit
+ * If no bits are set, returns @size.
+ */
+extern unsigned long find_next_bit(const unsigned long *addr, unsigned long
+ size, unsigned long offset);
+#endif
+
+#ifndef find_first_bit
+
+/**
+ * find_first_bit - find the first set bit in a memory region
+ * @addr: The address to start the search at
+ * @size: The maximum number of bits to search
+ *
+ * Returns the bit number of the first set bit.
+ * If no bits are set, returns @size.
+ */
+extern unsigned long find_first_bit(const unsigned long *addr,
+ unsigned long size);
+
+#endif /* find_first_bit */
+
+#endif /*_TOOLS_LINUX_ASM_GENERIC_BITOPS_FIND_H_ */
diff --git a/kernel/tools/include/asm-generic/bitops/fls.h b/kernel/tools/include/asm-generic/bitops/fls.h
new file mode 100644
index 000000000..dbf711a28
--- /dev/null
+++ b/kernel/tools/include/asm-generic/bitops/fls.h
@@ -0,0 +1 @@
+#include <../../../../include/asm-generic/bitops/fls.h>
diff --git a/kernel/tools/include/asm-generic/bitops/fls64.h b/kernel/tools/include/asm-generic/bitops/fls64.h
new file mode 100644
index 000000000..980b1f63c
--- /dev/null
+++ b/kernel/tools/include/asm-generic/bitops/fls64.h
@@ -0,0 +1 @@
+#include <../../../../include/asm-generic/bitops/fls64.h>
diff --git a/kernel/tools/include/asm-generic/bitops/hweight.h b/kernel/tools/include/asm-generic/bitops/hweight.h
new file mode 100644
index 000000000..290120c01
--- /dev/null
+++ b/kernel/tools/include/asm-generic/bitops/hweight.h
@@ -0,0 +1,7 @@
+#ifndef _TOOLS_LINUX_ASM_GENERIC_BITOPS_HWEIGHT_H_
+#define _TOOLS_LINUX_ASM_GENERIC_BITOPS_HWEIGHT_H_
+
+#include <asm-generic/bitops/arch_hweight.h>
+#include <asm-generic/bitops/const_hweight.h>
+
+#endif /* _TOOLS_LINUX_ASM_GENERIC_BITOPS_HWEIGHT_H_ */