68 lines
2.0 KiB
Diff
68 lines
2.0 KiB
Diff
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From 5caa74b57f4f0bbcdef3a0d764b544f5c6061222 Mon Sep 17 00:00:00 2001
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From: Wenlong Zhang <zhangwenlong@loongson.cn>
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Date: Tue, 16 Apr 2024 02:24:07 +0000
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Subject: [PATCH] add loongarch64 support for papi
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---
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src/linux-context.h | 2 ++
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src/linux-timer.c | 15 +++++++++++++++
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src/mb.h | 3 +++
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3 files changed, 20 insertions(+)
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diff --git a/src/linux-context.h b/src/linux-context.h
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index 394a480..00ebf73 100644
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--- a/src/linux-context.h
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+++ b/src/linux-context.h
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@@ -41,6 +41,8 @@ typedef ucontext_t hwd_ucontext_t;
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#define OVERFLOW_ADDRESS(ctx) ctx.ucontext->uc_mcontext.sc_iaoq[0]
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#elif defined(__riscv)
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#define OVERFLOW_ADDRESS(ctx) ctx.ucontext->uc_mcontext.__gregs[REG_PC]
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+#elif defined(__loongarch__)
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+#define OVERFLOW_ADDRESS(ctx) ctx.ucontext->uc_mcontext.__pc
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#else
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#error "OVERFLOW_ADDRESS() undefined!"
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#endif
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diff --git a/src/linux-timer.c b/src/linux-timer.c
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index 46bfe75..666801f 100644
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--- a/src/linux-timer.c
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+++ b/src/linux-timer.c
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@@ -322,6 +322,21 @@ get_cycles( void )
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* Timers and Counters
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*/
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+/****************************/
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+/* loongarch64 get_cycles() */
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+/****************************/
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+#elif defined(__loongarch__)
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+static inline long long
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+get_cycles(void)
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+{
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+ register unsigned long ret = 0;
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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"(ret),"=r"(rID));
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+ return ret;
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+}
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+
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+
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#elif !defined(HAVE_GETTIMEOFDAY) && !defined(HAVE_CLOCK_GETTIME)
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#error "No get_cycles support for this architecture. "
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#endif
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diff --git a/src/mb.h b/src/mb.h
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index 347436b..03e910b 100644
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--- a/src/mb.h
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+++ b/src/mb.h
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@@ -42,6 +42,9 @@
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#elif defined(__riscv)
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#define rmb() asm volatile("fence ir, ir" ::: "memory")
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+#elif defined(__loongarch__)
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+#define rmb() asm volatile("dbar 0" ::: "memory")
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+
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#elif defined(__mips__)
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#define rmb() asm volatile( \
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".set mips2\n\t" \
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--
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2.43.0
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