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drm/amdgpu: bypass RLC init under sriov for Tonga (v2) 

RLC will go wrong in soft_reset under sriov

Workaroound: only need to init RLC csb, and skip RLC stop, reset, start
    this is because host-driver has already done full initialization on RLC

v2: squash in build fix

Signed-off-by: Tiecehng Zhou <Tiecheng.Zhou@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Tiecheng Zhou 2018-12-07 09:11:35 +08:00 committed by Alex Deucher
parent 22666cc148
commit 31edd7c0a8
1 changed files with 5 additions and 0 deletions
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5
drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
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@ -4068,6 +4068,11 @@ static void gfx_v8_0_rlc_start(struct amdgpu_device *adev)
static int gfx_v8_0_rlc_resume(struct amdgpu_device *adev)
{
if (amdgpu_sriov_vf(adev)) {
gfx_v8_0_init_csb(adev);
return 0;
}
adev->gfx.rlc.funcs->stop(adev);
adev->gfx.rlc.funcs->reset(adev);
gfx_v8_0_init_pg(adev);