Add barrier definitions for RISC-V

Signed-off-by: David Abdurachmanov <david.abdurachmanov@gmail.com>

rdma-core-20.1-riscv-barriers.patch

@@ -0,0 +1,31 @@
+diff --git a/util/udma_barrier.h b/util/udma_barrier.h
+index 23acf23..899acf5 100644
+--- a/util/udma_barrier.h
++++ b/util/udma_barrier.h
+@@ -96,6 +96,8 @@
+ #define udma_to_device_barrier() asm volatile("dsb st" ::: "memory");
+ #elif defined(__sparc__) || defined(__s390x__)
+ #define udma_to_device_barrier() asm volatile("" ::: "memory")
++#elif defined(__riscv)
++#define udma_to_device_barrier() asm volatile("fence w,w" ::: "memory");
+ #else
+ #error No architecture specific memory barrier defines found!
+ #endif
+@@ -128,6 +130,8 @@
+ #define udma_from_device_barrier() asm volatile("dsb ld" ::: "memory");
+ #elif defined(__sparc__) || defined(__s390x__)
+ #define udma_from_device_barrier() asm volatile("" ::: "memory")
++#elif defined(__riscv)
++#define udma_from_device_barrier() asm volatile("fence r,rw" ::: "memory");
+ #else
+ #error No architecture specific memory barrier defines found!
+ #endif
+@@ -192,6 +196,8 @@
+ #define mmio_flush_writes() asm volatile("dsb st" ::: "memory");
+ #elif defined(__sparc__) || defined(__s390x__)
+ #define mmio_flush_writes() asm volatile("" ::: "memory")
++#elif defined(__riscv)
++#define mmio_flush_writes() asm volatile("fence w,w" ::: "memory");
+ #else
+ #error No architecture specific memory barrier defines found!
+ #endif

rdma-core.spec

@@ -1,6 +1,6 @@
 Name: rdma-core
 Version: 20.1
-Release: 3%{?dist}
+Release: 3.0.riscv64%{?dist}
 Summary: RDMA core userspace libraries and daemons
 
 %ifnarch s390 %{arm}
@@ -15,6 +15,8 @@ License: GPLv2 or BSD
 Url: https://github.com/linux-rdma/rdma-core
 Source: https://github.com/linux-rdma/rdma-core/releases/download/v%{version}/%{name}-%{version}.tar.gz
 
+Patch0: rdma-core-20.1-riscv-barriers.patch
+
 BuildRequires: binutils
 BuildRequires: cmake >= 2.8.11
 BuildRequires: gcc
@@ -22,14 +24,17 @@ BuildRequires: libudev-devel
 BuildRequires: pkgconfig
 BuildRequires: pkgconfig(libnl-3.0)
 BuildRequires: pkgconfig(libnl-route-3.0)
-%ifnarch s390
+%ifarch %{valgrind_arches}
 BuildRequires: valgrind-devel
 %endif
 BuildRequires: systemd
 BuildRequires: systemd-devel
 BuildRequires: python3
 BuildRequires: perl-generators
+%ifnarch riscv64
+# We don't have pandoc yet
 BuildRequires: pandoc
+%endif
 
 Requires: dracut, kmod, systemd
 # Red Hat/Fedora previously shipped redhat/ as a stand-alone
@@ -236,6 +241,7 @@ discover and use SCSI devices via the SCSI RDMA Protocol over InfiniBand.
 
 %prep
 %setup
+%patch0 -p1 -b .riscv
 
 %build
 
@@ -488,6 +494,9 @@ rm -f %{buildroot}/%{_sbindir}/srp_daemon.sh
 %doc %{_docdir}/%{name}-%{version}/ibsrpdm.md
 
 %changelog
+* Tue Apr 02 2019 David Abdurachmanov <david.abdurachmanov@gmail.com> - 20.1-3.0.riscv64
+- Switch to use %{valgrind_arches}
+
 * Sat Feb 02 2019 Fedora Release Engineering <releng@fedoraproject.org> - 20.1-3
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_30_Mass_Rebuild