diff options
| author |   Trigger Huang <Trigger.Huang@amd.com> | 2019-03-04 12:30:58 +0800 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2019-05-24 12:20:51 -0500 |
| commit | 98cad2deaf557d63f2c84fae30afefd0e84840e9 (patch) | |
| tree | e97c2b58b359611f86e53a82630d1e97d9f86cc4 /drivers/gpu/drm/amd/amdgpu/soc15.c | |
| parent | drm/amdgpu: Support PSP VMR ring for Vega10 VF (diff) | |
| download | linux-dev-98cad2deaf557d63f2c84fae30afefd0e84840e9.tar.xz linux-dev-98cad2deaf557d63f2c84fae30afefd0e84840e9.zip | |
drm/amdgpu: Skip setting some regs under Vega10 VF
For Vega10 SR-IOV VF, skip setting some regs due to:
1, host will program them
2, avoid VF register programming violations
Signed-off-by: Trigger Huang <Trigger.Huang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/soc15.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/soc15.c | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/soc15.c b/drivers/gpu/drm/amd/amdgpu/soc15.c index c1785843f0de..a4ebe9a0ac7f 100644 --- a/drivers/gpu/drm/amd/amdgpu/soc15.c +++ b/drivers/gpu/drm/amd/amdgpu/soc15.c @@ -1024,11 +1024,17 @@ static void soc15_doorbell_range_init(struct amdgpu_device *adev) int i; struct amdgpu_ring *ring; - for (i = 0; i < adev->sdma.num_instances; i++) { - ring = &adev->sdma.instance[i].ring; - adev->nbio_funcs->sdma_doorbell_range(adev, i, - ring->use_doorbell, ring->doorbell_index, - adev->doorbell_index.sdma_doorbell_range); + /* Two reasons to skip + * 1, Host driver already programmed them + * 2, To avoid registers program violations in SR-IOV + */ + if (!amdgpu_virt_support_skip_setting(adev)) { + for (i = 0; i < adev->sdma.num_instances; i++) { + ring = &adev->sdma.instance[i].ring; + adev->nbio_funcs->sdma_doorbell_range(adev, i, + ring->use_doorbell, ring->doorbell_index, + adev->doorbell_index.sdma_doorbell_range); + } } adev->nbio_funcs->ih_doorbell_range(adev, adev->irq.ih.use_doorbell, |