> -----Original Message----- > From: amd-gfx [mailto:amd-gfx-bounces at lists.freedesktop.org] On Behalf > Of Christian König > Sent: Friday, March 03, 2017 11:47 AM > To: amd-gfx at lists.freedesktop.org > Subject: [PATCH] drm/amdgpu: disable HDP flushes on APUs > > From: Christian König <christian.koenig at amd.com> > > We completely bypass the HDP now. > > Signed-off-by: Christian König <christian.koenig at amd.com> Reviewed-by: Alex Deucher <alexander.deucher at amd.com> > --- > drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c | 12 ++++++++++-- > 1 file changed, 10 insertions(+), 2 deletions(-) > > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c > b/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c > index 976722f..fd7633d 100644 > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c > @@ -172,7 +172,11 @@ int amdgpu_ib_schedule(struct amdgpu_ring *ring, > unsigned num_ibs, > } > } > > - if (ring->funcs->emit_hdp_flush) > + if (ring->funcs->emit_hdp_flush > +#ifdef CONFIG_X86_64 > + && !(adev->flags & AMD_IS_APU) > +#endif > + ) > amdgpu_ring_emit_hdp_flush(ring); > > skip_preamble = ring->current_ctx == fence_ctx; > @@ -202,7 +206,11 @@ int amdgpu_ib_schedule(struct amdgpu_ring *ring, > unsigned num_ibs, > need_ctx_switch = false; > } > > - if (ring->funcs->emit_hdp_invalidate) > + if (ring->funcs->emit_hdp_invalidate > +#ifdef CONFIG_X86_64 > + && !(adev->flags & AMD_IS_APU) > +#endif > + ) > amdgpu_ring_emit_hdp_invalidate(ring); > > r = amdgpu_fence_emit(ring, f); > -- > 2.7.4 > > _______________________________________________ > amd-gfx mailing list > amd-gfx at lists.freedesktop.org > https://lists.freedesktop.org/mailman/listinfo/amd-gfx
