diff --git a/0002-Fix-build-error-for-riscv64.patch b/0002-Fix-build-error-for-riscv64.patch
new file mode 100644
index 0000000000000000000000000000000000000000..c3115f7d272eda9e268e1a5a3156a49e5d40a66b
--- /dev/null
+++ b/0002-Fix-build-error-for-riscv64.patch
@@ -0,0 +1,74 @@
+From 1dc0fa9e37959b8fedfd1799670388e3f06d0ecc Mon Sep 17 00:00:00 2001
+From: Dingli Zhang <dingli@iscas.ac.cn>
+Date: Tue, 16 Jul 2024 17:52:28 +0000
+Subject: [PATCH] Fix build error for riscv64
+
+
+diff --git a/third_party/benchmark/src/cycleclock.h b/third_party/benchmark/src/cycleclock.h
+index d65d32a3..452e11e4 100644
+--- a/third_party/benchmark/src/cycleclock.h
++++ b/third_party/benchmark/src/cycleclock.h
+@@ -208,7 +208,7 @@ inline BENCHMARK_ALWAYS_INLINE int64_t Now() {
+   asm volatile("rdcycle %0" : "=r"(cycles));
+   return cycles;
+ #endif
+-#elif defined(__e2k__) || defined(__elbrus__)
++#elif defined(__e2k__) || defined(__elbrus__) || defined(__riscv)
+   struct timeval tv;
+   gettimeofday(&tv, nullptr);
+   return static_cast<int64_t>(tv.tv_sec) * 1000000 + tv.tv_usec;
+diff --git a/third_party/onnx-tensorrt/third_party/onnx/third_party/benchmark/src/cycleclock.h b/third_party/onnx-tensorrt/third_party/onnx/third_party/benchmark/src/cycleclock.h
+index 3b376ac5..add2f298 100644
+--- a/third_party/onnx-tensorrt/third_party/onnx/third_party/benchmark/src/cycleclock.h
++++ b/third_party/onnx-tensorrt/third_party/onnx/third_party/benchmark/src/cycleclock.h
+@@ -153,7 +153,7 @@ inline BENCHMARK_ALWAYS_INLINE int64_t Now() {
+   struct timeval tv;
+   gettimeofday(&tv, nullptr);
+   return static_cast<int64_t>(tv.tv_sec) * 1000000 + tv.tv_usec;
+-#elif defined(__mips__)
++#elif defined(__mips__) || defined(__riscv)
+   // mips apparently only allows rdtsc for superusers, so we fall
+   // back to gettimeofday.  It's possible clock_gettime would be better.
+   struct timeval tv;
+diff --git a/third_party/onnx/third_party/benchmark/src/cycleclock.h b/third_party/onnx/third_party/benchmark/src/cycleclock.h
+index d65d32a3..452e11e4 100644
+--- a/third_party/onnx/third_party/benchmark/src/cycleclock.h
++++ b/third_party/onnx/third_party/benchmark/src/cycleclock.h
+@@ -208,7 +208,7 @@ inline BENCHMARK_ALWAYS_INLINE int64_t Now() {
+   asm volatile("rdcycle %0" : "=r"(cycles));
+   return cycles;
+ #endif
+-#elif defined(__e2k__) || defined(__elbrus__)
++#elif defined(__e2k__) || defined(__elbrus__) || defined(__riscv)
+   struct timeval tv;
+   gettimeofday(&tv, nullptr);
+   return static_cast<int64_t>(tv.tv_sec) * 1000000 + tv.tv_usec;
+diff --git a/third_party/protobuf/third_party/benchmark/src/cycleclock.h b/third_party/protobuf/third_party/benchmark/src/cycleclock.h
+index 4251fe4c..07d63307 100644
+--- a/third_party/protobuf/third_party/benchmark/src/cycleclock.h
++++ b/third_party/protobuf/third_party/benchmark/src/cycleclock.h
+@@ -153,7 +153,7 @@ inline BENCHMARK_ALWAYS_INLINE int64_t Now() {
+   struct timeval tv;
+   gettimeofday(&tv, nullptr);
+   return static_cast<int64_t>(tv.tv_sec) * 1000000 + tv.tv_usec;
+-#elif defined(__mips__)
++#elif defined(__mips__) || defined(__riscv)
+   // mips apparently only allows rdtsc for superusers, so we fall
+   // back to gettimeofday.  It's possible clock_gettime would be better.
+   struct timeval tv;
+diff --git a/third_party/sleef/src/arch/helperpurec_scalar.h b/third_party/sleef/src/arch/helperpurec_scalar.h
+index e77e518f..f28c2b83 100644
+--- a/third_party/sleef/src/arch/helperpurec_scalar.h
++++ b/third_party/sleef/src/arch/helperpurec_scalar.h
+@@ -54,7 +54,7 @@
+ #define ENABLE_FMA_SP
+ //@#define ENABLE_FMA_SP
+ 
+-#if defined(__AVX2__) || defined(__aarch64__) || defined(__arm__) || defined(__powerpc64__) || defined(__zarch__) || CONFIG == 3
++#if defined(__AVX2__) || defined(__aarch64__) || defined(__arm__) || defined(__powerpc64__) || defined(__zarch__) || defined(__riscv) || CONFIG == 3
+ #ifndef FP_FAST_FMA
+ #define FP_FAST_FMA
+ //@#define FP_FAST_FMA
+-- 
+2.41.0
+
diff --git a/pytorch.spec b/pytorch.spec
index 73c7523342ff81b4222ef7808ba0d3bba14831de..f1b247d298a05a7747d220eb231ab2012290da10 100644
--- a/pytorch.spec
+++ b/pytorch.spec
@@ -1,13 +1,16 @@
 %global _empty_manifest_terminate_build 0
 Name:		pytorch
 Version:	2.1.2
-Release:	2
+Release:	3
 Summary:	Tensors and Dynamic neural networks in Python with strong GPU acceleration
 License:	BSD-3-Clause
 URL:		https://pytorch.org/
 Source0:	https://github.com/pytorch/pytorch/releases/download/v%{version}/pytorch-v%{version}.tar.gz
 
 Patch1:		0001-add-Wno-error-nonnull-for-test-cpp-api.patch
+%ifarch riscv64
+Patch2:		0002-Fix-build-error-for-riscv64.patch
+%endif
 BuildRequires:  g++
 Requires:	python3-future
 Requires:	python3-numpy
@@ -86,6 +89,9 @@ mv %{buildroot}/doclist.lst .
 %{_docdir}/*
 
 %changelog
+* Wed Jul 17 2024 Dingli Zhang <dingli@iscas.ac.cn> - 2.1.2-3
+- Fix build error for riscv64
+
 * Thu Jan 11 2024 Dongxing Wang <dongxing.wang_a@thundersoft.com> - 2.1.2-2
 - Patch: Add -Wno-error=nonnull for test/cpp/api/