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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
commit2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch)
tree848558de17fb3008cdf4d861b01ac7781903ce39 /arch/openrisc/include/asm/bitops
parentInitial commit. (diff)
downloadlinux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz
linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/openrisc/include/asm/bitops')
-rw-r--r--arch/openrisc/include/asm/bitops/__ffs.h29
-rw-r--r--arch/openrisc/include/asm/bitops/__fls.h29
-rw-r--r--arch/openrisc/include/asm/bitops/atomic.h123
-rw-r--r--arch/openrisc/include/asm/bitops/ffs.h28
-rw-r--r--arch/openrisc/include/asm/bitops/fls.h29
5 files changed, 238 insertions, 0 deletions
diff --git a/arch/openrisc/include/asm/bitops/__ffs.h b/arch/openrisc/include/asm/bitops/__ffs.h
new file mode 100644
index 000000000..1e224b616
--- /dev/null
+++ b/arch/openrisc/include/asm/bitops/__ffs.h
@@ -0,0 +1,29 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * OpenRISC Linux
+ *
+ * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
+ */
+
+#ifndef __ASM_OPENRISC___FFS_H
+#define __ASM_OPENRISC___FFS_H
+
+
+#ifdef CONFIG_OPENRISC_HAVE_INST_FF1
+
+static inline unsigned long __ffs(unsigned long x)
+{
+ int ret;
+
+ __asm__ ("l.ff1 %0,%1"
+ : "=r" (ret)
+ : "r" (x));
+
+ return ret-1;
+}
+
+#else
+#include <asm-generic/bitops/__ffs.h>
+#endif
+
+#endif /* __ASM_OPENRISC___FFS_H */
diff --git a/arch/openrisc/include/asm/bitops/__fls.h b/arch/openrisc/include/asm/bitops/__fls.h
new file mode 100644
index 000000000..9658446ad
--- /dev/null
+++ b/arch/openrisc/include/asm/bitops/__fls.h
@@ -0,0 +1,29 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * OpenRISC Linux
+ *
+ * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
+ */
+
+#ifndef __ASM_OPENRISC___FLS_H
+#define __ASM_OPENRISC___FLS_H
+
+
+#ifdef CONFIG_OPENRISC_HAVE_INST_FL1
+
+static inline unsigned long __fls(unsigned long x)
+{
+ int ret;
+
+ __asm__ ("l.fl1 %0,%1"
+ : "=r" (ret)
+ : "r" (x));
+
+ return ret-1;
+}
+
+#else
+#include <asm-generic/bitops/__fls.h>
+#endif
+
+#endif /* __ASM_OPENRISC___FLS_H */
diff --git a/arch/openrisc/include/asm/bitops/atomic.h b/arch/openrisc/include/asm/bitops/atomic.h
new file mode 100644
index 000000000..35fb85f61
--- /dev/null
+++ b/arch/openrisc/include/asm/bitops/atomic.h
@@ -0,0 +1,123 @@
+/*
+ * Copyright (C) 2014 Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+#ifndef __ASM_OPENRISC_BITOPS_ATOMIC_H
+#define __ASM_OPENRISC_BITOPS_ATOMIC_H
+
+static inline void set_bit(int nr, volatile unsigned long *addr)
+{
+ unsigned long mask = BIT_MASK(nr);
+ unsigned long *p = ((unsigned long *)addr) + BIT_WORD(nr);
+ unsigned long tmp;
+
+ __asm__ __volatile__(
+ "1: l.lwa %0,0(%1) \n"
+ " l.or %0,%0,%2 \n"
+ " l.swa 0(%1),%0 \n"
+ " l.bnf 1b \n"
+ " l.nop \n"
+ : "=&r"(tmp)
+ : "r"(p), "r"(mask)
+ : "cc", "memory");
+}
+
+static inline void clear_bit(int nr, volatile unsigned long *addr)
+{
+ unsigned long mask = BIT_MASK(nr);
+ unsigned long *p = ((unsigned long *)addr) + BIT_WORD(nr);
+ unsigned long tmp;
+
+ __asm__ __volatile__(
+ "1: l.lwa %0,0(%1) \n"
+ " l.and %0,%0,%2 \n"
+ " l.swa 0(%1),%0 \n"
+ " l.bnf 1b \n"
+ " l.nop \n"
+ : "=&r"(tmp)
+ : "r"(p), "r"(~mask)
+ : "cc", "memory");
+}
+
+static inline void change_bit(int nr, volatile unsigned long *addr)
+{
+ unsigned long mask = BIT_MASK(nr);
+ unsigned long *p = ((unsigned long *)addr) + BIT_WORD(nr);
+ unsigned long tmp;
+
+ __asm__ __volatile__(
+ "1: l.lwa %0,0(%1) \n"
+ " l.xor %0,%0,%2 \n"
+ " l.swa 0(%1),%0 \n"
+ " l.bnf 1b \n"
+ " l.nop \n"
+ : "=&r"(tmp)
+ : "r"(p), "r"(mask)
+ : "cc", "memory");
+}
+
+static inline int test_and_set_bit(int nr, volatile unsigned long *addr)
+{
+ unsigned long mask = BIT_MASK(nr);
+ unsigned long *p = ((unsigned long *)addr) + BIT_WORD(nr);
+ unsigned long old;
+ unsigned long tmp;
+
+ __asm__ __volatile__(
+ "1: l.lwa %0,0(%2) \n"
+ " l.or %1,%0,%3 \n"
+ " l.swa 0(%2),%1 \n"
+ " l.bnf 1b \n"
+ " l.nop \n"
+ : "=&r"(old), "=&r"(tmp)
+ : "r"(p), "r"(mask)
+ : "cc", "memory");
+
+ return (old & mask) != 0;
+}
+
+static inline int test_and_clear_bit(int nr, volatile unsigned long *addr)
+{
+ unsigned long mask = BIT_MASK(nr);
+ unsigned long *p = ((unsigned long *)addr) + BIT_WORD(nr);
+ unsigned long old;
+ unsigned long tmp;
+
+ __asm__ __volatile__(
+ "1: l.lwa %0,0(%2) \n"
+ " l.and %1,%0,%3 \n"
+ " l.swa 0(%2),%1 \n"
+ " l.bnf 1b \n"
+ " l.nop \n"
+ : "=&r"(old), "=&r"(tmp)
+ : "r"(p), "r"(~mask)
+ : "cc", "memory");
+
+ return (old & mask) != 0;
+}
+
+static inline int test_and_change_bit(int nr, volatile unsigned long *addr)
+{
+ unsigned long mask = BIT_MASK(nr);
+ unsigned long *p = ((unsigned long *)addr) + BIT_WORD(nr);
+ unsigned long old;
+ unsigned long tmp;
+
+ __asm__ __volatile__(
+ "1: l.lwa %0,0(%2) \n"
+ " l.xor %1,%0,%3 \n"
+ " l.swa 0(%2),%1 \n"
+ " l.bnf 1b \n"
+ " l.nop \n"
+ : "=&r"(old), "=&r"(tmp)
+ : "r"(p), "r"(mask)
+ : "cc", "memory");
+
+ return (old & mask) != 0;
+}
+
+#endif /* __ASM_OPENRISC_BITOPS_ATOMIC_H */
diff --git a/arch/openrisc/include/asm/bitops/ffs.h b/arch/openrisc/include/asm/bitops/ffs.h
new file mode 100644
index 000000000..b4c835d6b
--- /dev/null
+++ b/arch/openrisc/include/asm/bitops/ffs.h
@@ -0,0 +1,28 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * OpenRISC Linux
+ *
+ * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
+ */
+
+#ifndef __ASM_OPENRISC_FFS_H
+#define __ASM_OPENRISC_FFS_H
+
+#ifdef CONFIG_OPENRISC_HAVE_INST_FF1
+
+static inline int ffs(int x)
+{
+ int ret;
+
+ __asm__ ("l.ff1 %0,%1"
+ : "=r" (ret)
+ : "r" (x));
+
+ return ret;
+}
+
+#else
+#include <asm-generic/bitops/ffs.h>
+#endif
+
+#endif /* __ASM_OPENRISC_FFS_H */
diff --git a/arch/openrisc/include/asm/bitops/fls.h b/arch/openrisc/include/asm/bitops/fls.h
new file mode 100644
index 000000000..6b77f6556
--- /dev/null
+++ b/arch/openrisc/include/asm/bitops/fls.h
@@ -0,0 +1,29 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * OpenRISC Linux
+ *
+ * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
+ */
+
+#ifndef __ASM_OPENRISC_FLS_H
+#define __ASM_OPENRISC_FLS_H
+
+
+#ifdef CONFIG_OPENRISC_HAVE_INST_FL1
+
+static inline int fls(unsigned int x)
+{
+ int ret;
+
+ __asm__ ("l.fl1 %0,%1"
+ : "=r" (ret)
+ : "r" (x));
+
+ return ret;
+}
+
+#else
+#include <asm-generic/bitops/fls.h>
+#endif
+
+#endif /* __ASM_OPENRISC_FLS_H */