> -----Original Message----- > From: amd-gfx [mailto:amd-gfx-bounces at lists.freedesktop.org] On Behalf > Of Chunming Zhou > Sent: Monday, June 27, 2016 10:39 PM > To: amd-gfx at lists.freedesktop.org > Cc: Zhou, David(ChunMing) > Subject: [PATCH] drm/amdgpu: stop/resume fb access when gpu reset V3 > > V2: Add wait_for_mc_idle after stopping fb access > V3: > 1. Remove resume fb access since there is no need to > do that for gpu reset. > 2. Move stop fb access to amdgpu_gpu_reset function, > since it's the same for all asics. > > Change-Id: I86b5c2b8c78a17ef43ade2a97ef8a33853650be0 > Signed-off-by: Chunming Zhou <David1.Zhou at amd.com> > Reviewed-by: Christian König <christian.koenig at amd.com> (V1) Reviewed-by: Alex Deucher <alexander.deucher at amd.com> > --- > drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 7 +++++++ > 1 file changed, 7 insertions(+) > > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c > b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c > index 449cc3e..c04ca4a 100644 > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c > @@ -2015,6 +2015,13 @@ int amdgpu_gpu_reset(struct amdgpu_device > *adev) > } > > retry: > + /* Disable fb access */ > + if (adev->mode_info.num_crtc) { > + struct amdgpu_mode_mc_save save; > + amdgpu_display_stop_mc_access(adev, &save); > + amdgpu_wait_for_idle(adev, AMD_IP_BLOCK_TYPE_GMC); > + } > + > r = amdgpu_asic_reset(adev); > /* post card */ > amdgpu_atom_asic_init(adev->mode_info.atom_context); > -- > 1.9.1 > > _______________________________________________ > amd-gfx mailing list > amd-gfx at lists.freedesktop.org > https://lists.freedesktop.org/mailman/listinfo/amd-gfx
