drm/amdgpu: fix incorrect number of active RBs for gfx11

From Tim Huang
bd3105a71d1c125deedf35be11b4d79e8b84e6f2 in linux-6.6.y/6.6.28
bbca7f414ae9a12ea231cdbafd79c607e3337ea8 in mainline linux

diff --git a/sys/dev/pci/drm/amd/amdgpu/gfx_v11_0.c b/sys/dev/pci/drm/amd/amdgpu/gfx_v11_0.c
index 2520331..291b883 100644 (file)
--- a/sys/dev/pci/drm/amd/amdgpu/gfx_v11_0.c
+++ b/sys/dev/pci/drm/amd/amdgpu/gfx_v11_0.c
@@ -1616,7 +1616,7 @@ static void gfx_v11_0_setup_rb(struct amdgpu_device *adev)
                        active_rb_bitmap |= (0x3 << (i * rb_bitmap_width_per_sa));
        }
 
-       active_rb_bitmap |= global_active_rb_bitmap;
+       active_rb_bitmap &= global_active_rb_bitmap;
        adev->gfx.config.backend_enable_mask = active_rb_bitmap;
        adev->gfx.config.num_rbs = hweight32(active_rb_bitmap);
 }