158 lines
4.8 KiB
Diff
158 lines
4.8 KiB
Diff
diff --git a/include/Makefile.am b/include/Makefile.am
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index 3f92cc3..5c042fd 100644
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--- a/include/Makefile.am
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+++ b/include/Makefile.am
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@@ -16,6 +16,7 @@ nobase_include_HEADERS = \
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urcu/arch/sparc64.h \
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urcu/arch/tile.h \
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urcu/arch/x86.h \
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+ urcu/arch/loongarch.h \
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urcu/call-rcu.h \
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urcu/cds.h \
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urcu/compiler.h \
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@@ -76,6 +77,7 @@ nobase_include_HEADERS = \
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urcu/uatomic/sparc64.h \
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urcu/uatomic/tile.h \
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urcu/uatomic/x86.h \
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+ urcu/uatomic/loongarch.h \
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urcu/urcu-bp.h \
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urcu/urcu-futex.h \
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urcu/urcu.h \
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diff --git a/include/urcu/arch.h b/include/urcu/arch.h
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index 620743c..e42267a 100644
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--- a/include/urcu/arch.h
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+++ b/include/urcu/arch.h
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@@ -157,6 +157,11 @@
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#define URCU_ARCH_RISCV 1
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#include <urcu/arch/riscv.h>
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+#elif defined(__loongarch__) || (_loongarch64)
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+
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+#define URCU_ARCH_LOONGARCH 1
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+#include <urcu/arch/loongarch.h>
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+
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#else
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#error "Cannot build: unrecognized architecture, see <urcu/arch.h>."
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#endif
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diff --git a/include/urcu/arch/loongarch.h b/include/urcu/arch/loongarch.h
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new file mode 100644
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index 0000000..865bbb5
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--- /dev/null
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+++ b/include/urcu/arch/loongarch.h
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@@ -0,0 +1,50 @@
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+#ifndef _URCU_ARCH_LOONGARCH_H
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+#define _URCU_ARCH_LOONGARCH_H
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+
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+/*
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+ * arch/loongarch.h: definitions for the LOONGARCH architecture
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+ *
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+ * Copyright (c) 2022 Loongson Technology Corporation Limited
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+ *
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+ * This library is free software; you can redistribute it and/or
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+ * modify it under the terms of the GNU Lesser General Public
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+ * License as published by the Free Software Foundation; either
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+ * version 2.1 of the License, or (at your option) any later version.
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+ *
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+ * This library is distributed in the hope that it will be useful,
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+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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+ * Lesser General Public License for more details.
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+ *
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+ * You should have received a copy of the GNU Lesser General Public
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+ * License along with this library; if not, write to the Free Software
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+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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+ */
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+
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+#include <urcu/compiler.h>
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+#include <urcu/config.h>
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+#include <urcu/syscall-compat.h>
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+
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+#ifdef __cplusplus
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+extern "C" {
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+#endif
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+
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+#include <stdlib.h>
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+#include <sys/time.h>
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+
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+/*
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+ * On Linux, define the membarrier system call number if not yet available in
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+ * the system headers. loongarch64 implements asm-generic/unistd.h system call
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+ * numbers.
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+ */
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+#if (defined(__linux__) && !defined(__NR_membarrier))
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+#define __NR_membarrier 283
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+#endif
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+
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+#ifdef __cplusplus
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+}
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+#endif
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+
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+#include <urcu/arch/generic.h>
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+
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+#endif /* _URCU_ARCH_LOONGARCH_H */
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diff --git a/include/urcu/uatomic.h b/include/urcu/uatomic.h
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index 2fb5fd4..e1ff44d 100644
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--- a/include/urcu/uatomic.h
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+++ b/include/urcu/uatomic.h
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@@ -51,6 +51,8 @@
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#include <urcu/uatomic/m68k.h>
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#elif defined(URCU_ARCH_RISCV)
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#include <urcu/uatomic/riscv.h>
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+#elif defined(URCU_ARCH_LOONGARCH)
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+#include <urcu/uatomic/loongarch.h>
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#else
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#error "Cannot build: unrecognized architecture, see <urcu/arch.h>."
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#endif
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diff --git a/include/urcu/uatomic/loongarch.h b/include/urcu/uatomic/loongarch.h
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new file mode 100644
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index 0000000..e0fb2a6
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--- /dev/null
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+++ b/include/urcu/uatomic/loongarch.h
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@@ -0,0 +1,44 @@
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+/*
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+ * Atomic exchange operations for the LOONGARCH architecture. Let GCC do it.
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+ *
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+ * Copyright (c) 2022 Loongson Technology Corporation Limited
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+ *
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+ * Permission is hereby granted, free of charge, to any person obtaining a copy
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+ * of this software and associated documentation files (the "Software"), to
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+ * deal in the Software without restriction, including without limitation the
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+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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+ * sell copies of the Software, and to permit persons to whom the Software is
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+ * furnished to do so, subject to the following conditions:
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+ *
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+ * The above copyright notice and this permission notice shall be included in
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+ * all copies or substantial portions of the Software.
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+ *
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+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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+ * IN THE SOFTWARE.
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+ */
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+
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+#ifndef _URCU_ARCH_UATOMIC_LOONGARCH_H
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+#define _URCU_ARCH_UATOMIC_LOONGARCH_H
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+
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+#include <urcu/compiler.h>
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+#include <urcu/system.h>
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+
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+#ifdef __cplusplus
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+extern "C" {
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+#endif
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+
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+#define UATOMIC_HAS_ATOMIC_BYTE
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+#define UATOMIC_HAS_ATOMIC_SHORT
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+
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+#ifdef __cplusplus
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+}
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+#endif
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+
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+#include <urcu/uatomic/generic.h>
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+
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+#endif /* _URCU_ARCH_UATOMIC_LOONGARCH_H */
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--
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2.27.0
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