Am 26.02.2018 um 06:18 schrieb Monk Liu: > issue: > under SR-IOV sometimes the iB test will fail on > gfx ring > > fix: > with cond_exec inserted in RB the gfx engine would > skip part packets if RLCV issue PREEMPT on gfx engine > if gfx engine is prior to COND_EXEC packet, this is > okay for regular command from UMD, but for the ib test > since the whole dma format doesn't support PREEMPT > so must remove the COND_EXEC from it. > > Change-Id: I73bd0479bf1307139ff3726a00c312526054aa6d > Signed-off-by: Monk Liu <Monk.Liu at amd.com> Reviewed-by: Christian König <christian.koenig at amd.com> > --- > drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c > index 8ea342d..7f2c314 100644 > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c > @@ -181,7 +181,7 @@ int amdgpu_ib_schedule(struct amdgpu_ring *ring, unsigned num_ibs, > } > } > > - if (ring->funcs->init_cond_exec) > + if (job && ring->funcs->init_cond_exec) > patch_offset = amdgpu_ring_init_cond_exec(ring); > > #ifdef CONFIG_X86_64
