143 lines
4.2 KiB
Diff
143 lines
4.2 KiB
Diff
From ee85f408afadcdbcaf4b5bafb649a7e9da7540f7 Mon Sep 17 00:00:00 2001
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From: Wenlong Zhang <zhangwenlong@loongson.cn>
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Date: Wed, 22 Feb 2023 17:00:50 +0800
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Subject: [PATCH] add loongarch64 support for libvma
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---
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src/utils/Makefile.am | 1 +
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src/utils/asm-loongarch64.h | 96 +++++++++++++++++++++++++++++++++++++
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src/utils/asm.h | 2 +
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3 files changed, 99 insertions(+)
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create mode 100644 src/utils/asm-loongarch64.h
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diff --git a/src/utils/Makefile.am b/src/utils/Makefile.am
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index 5808729..ae4a33a 100644
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--- a/src/utils/Makefile.am
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+++ b/src/utils/Makefile.am
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@@ -5,6 +5,7 @@ libutils_la_LDFLAGS = -static
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libutils_la_LIBADD = -lrt
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libutils_la_SOURCES = \
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asm-arm64.h \
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+ asm-loongarch64.h \
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asm-ppc64.h \
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asm-x86.h \
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asm.h \
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diff --git a/src/utils/asm-loongarch64.h b/src/utils/asm-loongarch64.h
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new file mode 100644
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index 0000000..55ee563
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--- /dev/null
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+++ b/src/utils/asm-loongarch64.h
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@@ -0,0 +1,96 @@
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+/*
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+ * Copyright (C) 2020-2022 Loongson Technology Corporation Limited
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+ *
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+ * This software is available to you under a choice of one of two
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+ * licenses. You may choose to be licensed under the terms of the GNU
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+ * General Public License (GPL) Version 2, available from the file
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+ * COPYING in the main directory of this source tree, or the
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+ * BSD license below:
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+ *
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+ * Redistribution and use in source and binary forms, with or
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+ * without modification, are permitted provided that the following
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+ * conditions are met:
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+ *
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+ * - Redistributions of source code must retain the above
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+ * copyright notice, this list of conditions and the following
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+ * disclaimer.
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+ *
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+ * - Redistributions in binary form must reproduce the above
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+ * copyright notice, this list of conditions and the following
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+ * disclaimer in the documentation and/or other materials
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+ * provided with the distribution.
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+ *
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+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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+ * SOFTWARE.
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+ */
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+
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+
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+#ifndef ASMLOONGARCH64_H_
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+#define ASMLOONGARCH64_H_
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+
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+#include <stdint.h>
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+#include <unistd.h>
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+
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+#define COPY_64B_NT(dst, src) \
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+ *dst++ = *src++; \
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+ *dst++ = *src++; \
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+ *dst++ = *src++; \
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+ *dst++ = *src++; \
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+ *dst++ = *src++; \
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+ *dst++ = *src++; \
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+ *dst++ = *src++; \
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+ *dst++ = *src++
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+
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+#define mb() asm volatile("dbar 0" ::: "memory")
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+#define rmb() mb()
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+#define wmb() mb()
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+#define wc_wmb() wmb()
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+
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+/**
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+ * Add to the atomic variable.
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+ * @param i integer value to add.
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+ * @param v pointer of type atomic_t.
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+ * @return Value before add.
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+ */
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+static inline int atomic_fetch_and_add(int i, volatile int *ptr)
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+{
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+ return __atomic_fetch_add(ptr, i, __ATOMIC_ACQUIRE);
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+}
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+
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+/**
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+ * Read RDTSC register
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+ */
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+static inline void gettimeoftsc(unsigned long long *p_tscval)
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+{
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+ // Read Time Stamp Counter
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+ int rID=0;
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+ asm volatile("ibar 0" : : : "memory");
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+ asm volatile("rdtime.d %0, %1" : "=r" ((unsigned long long)*p_tscval),"=r" (rID));
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+}
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+
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+/**
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+ * Cache Line Prefetch - Arch specific!
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+ */
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+#ifndef L1_CACHE_BYTES
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+#define L1_CACHE_BYTES 64
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+#endif
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+
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+static inline void prefetch(void *x)
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+{
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+ __builtin_prefetch(x, 0, 1);
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+}
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+
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+static inline void prefetch_range(void *addr, size_t len)
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+{
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+ char *cp = (char*)addr;
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+ char *end = (char*)addr + len;
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+ for (; cp < end; cp += L1_CACHE_BYTES)
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+ prefetch(cp);
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+}
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+#endif
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diff --git a/src/utils/asm.h b/src/utils/asm.h
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index 78530cc..3afce8d 100644
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--- a/src/utils/asm.h
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+++ b/src/utils/asm.h
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@@ -36,6 +36,8 @@
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#if defined(__aarch64__)
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#include "asm-arm64.h"
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+#elif defined(__loongarch64)
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+#include "asm-loongarch64.h"
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#elif defined(__powerpc64__)
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#include "asm-ppc64.h"
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#elif defined(__x86_64__)
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--
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2.33.0
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