On 17.06.2016 16:20, Alex Deucher wrote: > This was accidently broken for harvest cards when the > code was refactored for Polaris support. > > Signed-off-by: Alex Deucher <alexander.deucher at amd.com> > Cc: stable at vger.kernel.org > --- > drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c > index 9ab28ca..e5c22cd 100644 > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c > @@ -459,7 +459,7 @@ static int amdgpu_info_ioctl(struct drm_device *dev, void *data, struct drm_file > dev_info.max_memory_clock = adev->pm.default_mclk * 10; > } > dev_info.enabled_rb_pipes_mask = adev->gfx.config.backend_enable_mask; > - dev_info.num_rb_pipes = adev->gfx.config.num_rbs; > + dev_info.num_rb_pipes = adev->gfx.config.max_backends_per_se; At a glance, that looks suspicious to me. num_rb_pipes becomes rb_pipes in libdrmm and then num_render_backends. We divide num_render_backends by the number of SEs * SHs in radeonsi. In a nutshell, radeonsi expects this to be the total number of RBs (including disabled/harvested ones). Nicolai > dev_info.num_hw_gfx_contexts = adev->gfx.config.max_hw_contexts; > dev_info._pad = 0; > dev_info.ids_flags = 0; >