add loongarch64 support for papi

(cherry picked from commit b78ba612024c6c83754b55dc3b60802f89a426ff)

add-loongarch64-support-for-papi.patch

@@ -0,0 +1,67 @@
+From 5caa74b57f4f0bbcdef3a0d764b544f5c6061222 Mon Sep 17 00:00:00 2001
+From: Wenlong Zhang <zhangwenlong@loongson.cn>
+Date: Tue, 16 Apr 2024 02:24:07 +0000
+Subject: [PATCH] add loongarch64 support for papi
+
+---
+ src/linux-context.h |  2 ++
+ src/linux-timer.c   | 15 +++++++++++++++
+ src/mb.h            |  3 +++
+ 3 files changed, 20 insertions(+)
+
+diff --git a/src/linux-context.h b/src/linux-context.h
+index 394a480..00ebf73 100644
+--- a/src/linux-context.h
++++ b/src/linux-context.h
+@@ -41,6 +41,8 @@ typedef ucontext_t hwd_ucontext_t;
+ #define OVERFLOW_ADDRESS(ctx) ctx.ucontext->uc_mcontext.sc_iaoq[0]
+ #elif defined(__riscv)
+ #define OVERFLOW_ADDRESS(ctx) ctx.ucontext->uc_mcontext.__gregs[REG_PC]
++#elif defined(__loongarch__)
++#define OVERFLOW_ADDRESS(ctx) ctx.ucontext->uc_mcontext.__pc
+ #else
+ #error "OVERFLOW_ADDRESS() undefined!"
+ #endif
+diff --git a/src/linux-timer.c b/src/linux-timer.c
+index 46bfe75..666801f 100644
+--- a/src/linux-timer.c
++++ b/src/linux-timer.c
+@@ -322,6 +322,21 @@ get_cycles( void )
+  *     Timers and Counters
+  */
+ 
++/****************************/
++/* loongarch64 get_cycles() */
++/****************************/
++#elif defined(__loongarch__)
++static inline long long
++get_cycles(void)
++{
++       register unsigned long ret = 0;
++       int rID = 0;
++       __asm__ __volatile__ ("ibar 0" ::: "memory");
++       __asm__ __volatile__ ("rdtime.d %0, %1" :"=r"(ret),"=r"(rID));
++       return ret;
++}
++
++
+ #elif !defined(HAVE_GETTIMEOFDAY) && !defined(HAVE_CLOCK_GETTIME)
+ #error "No get_cycles support for this architecture. "
+ #endif
+diff --git a/src/mb.h b/src/mb.h
+index 347436b..03e910b 100644
+--- a/src/mb.h
++++ b/src/mb.h
+@@ -42,6 +42,9 @@
+ #elif defined(__riscv)
+ #define rmb()           asm volatile("fence ir, ir" ::: "memory")
+ 
++#elif defined(__loongarch__)
++#define rmb()           asm volatile("dbar 0" ::: "memory")
++
+ #elif defined(__mips__)
+ #define rmb()           asm volatile(                                   \
+                                 ".set   mips2\n\t"                      \
+-- 
+2.43.0
+

papi.spec

@@ -1,6 +1,6 @@
 Name:            papi
 Version:         7.1.0
-Release:         1
+Release:         2
 Summary:         Performance Application Programming Interface
 License:         BSD-3-clause
 URL:             http://icl.cs.utk.edu/papi/
@@ -13,6 +13,7 @@ Provides:        papi-libs = %{version}-%{release}
 Obsoletes:       papi-libs < %{version}-%{release}
 
 Patch0001:       papi-add-support-riscv64.patch
+Patch0002:	 add-loongarch64-support-for-papi.patch
 
 %description
 PAPI provides a programmer interface to monitor the performance of
@@ -89,6 +90,9 @@ done
 %{_mandir}/man3/*
 
 %changelog
+* Tue Apr 16 2024 Wenlong Zhang <zhangwenlong@loongson.cn> - 7.1.0-2
+- add loongarch64 support for papi
+
 * Tue Jan 2 2024 liyanan <liyanan61@h-partners.com> - 7.1.0-1
 - Upgrade to version 7.1.0