diff --git a/0001-radeonsi-fix-regression-on-gpus-using-the-radeon-win.patch b/0001-radeonsi-fix-regression-on-gpus-using-the-radeon-win.patch
new file mode 100644
index 0000000..4a54e07
--- /dev/null
+++ b/0001-radeonsi-fix-regression-on-gpus-using-the-radeon-win.patch
@@ -0,0 +1,12 @@
+diff -up mesa-20.3.0/src/gallium/winsys/radeon/drm/radeon_drm_winsys.c.dma mesa-20.3.0/src/gallium/winsys/radeon/drm/radeon_drm_winsys.c
+--- mesa-20.3.0/src/gallium/winsys/radeon/drm/radeon_drm_winsys.c.dma	2020-12-04 03:59:53.578230900 +1000
++++ mesa-20.3.0/src/gallium/winsys/radeon/drm/radeon_drm_winsys.c	2020-12-07 10:01:07.602269090 +1000
+@@ -530,6 +530,8 @@ static bool do_winsys_init(struct radeon
+       }
+    }
+ 
++   ws->info.num_se = ws->info.max_se;
++
+    radeon_get_drm_value(ws->fd, RADEON_INFO_MAX_SH_PER_SE, NULL,
+                         &ws->info.max_sh_per_se);
+    if (ws->gen == DRV_SI) {
diff --git a/mesa.spec b/mesa.spec
index fd273d9..9b64b60 100644
--- a/mesa.spec
+++ b/mesa.spec
@@ -52,7 +52,7 @@ Name:           mesa
 Summary:        Mesa graphics libraries
 %global ver 20.3.0
 Version:        %{lua:ver = string.gsub(rpm.expand("%{ver}"), "-", "~"); print(ver)}
-Release:        1%{?dist}
+Release:        2%{?dist}
 License:        MIT
 URL:            http://www.mesa3d.org
 
@@ -62,6 +62,8 @@ Source0:        https://mesa.freedesktop.org/archive/%{name}-%{ver}.tar.xz
 # Fedora opts to ignore the optional part of clause 2 and treat that code as 2 clause BSD.
 Source1:        Mesa-MLAA-License-Clarification-Email.txt
 
+Patch0: 0001-radeonsi-fix-regression-on-gpus-using-the-radeon-win.patch
+
 BuildRequires:  meson >= 0.45
 BuildRequires:  gcc
 BuildRequires:  gcc-c++
@@ -591,6 +593,9 @@ popd
 %endif
 
 %changelog
+* Mon Dec 07 2020 Dave Airlie <airlied@redhat.com> - 20.3.0-2
+- Fix regression with radeon si/cik cards
+
 * Fri Dec 04 2020 Dave Airlie <airlied@redhat.com> - 20.3.0-1
 - Update to 20.3.0 release