diff options
| author | Surbhi Kakarya <surbhi.kakarya@amd.com> | 2023-09-25 19:12:10 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2023-11-07 19:15:37 +0300 |
| commit | 9256e8d47a2fa0bcb5d32e7fee8c674c476a480f (patch) | |
| tree | 3f1a1b9a99282664f3a158197cafeac5e5d911fc /drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c | |
| parent | 9ccde17d46554dbb2757c427f2cdf67688701f96 (diff) | |
| download | linux-9256e8d47a2fa0bcb5d32e7fee8c674c476a480f.tar.xz | |
drm/amd: Disable XNACK on SRIOV environment
The purpose of this patch is to disable XNACK or set XNACK OFF mode
on SRIOV platform which doesn't support it.
This will prevent user-space application to fail or result into
unexpected behaviour whenever the application need to run test-case
in XNACK ON mode.
Signed-off-by: Surbhi Kakarya <surbhi.kakarya@amd.com>
Reviewed-by: Shaoyun Liu <shaoyun.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c index a0aa624f5a92..f7d1d356ecdd 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c @@ -1093,3 +1093,13 @@ u32 amdgpu_sriov_rreg(struct amdgpu_device *adev, else return RREG32(offset); } + +bool amdgpu_sriov_xnack_support(struct amdgpu_device *adev) +{ + bool xnack_mode = true; + + if (amdgpu_sriov_vf(adev) && adev->ip_versions[GC_HWIP][0] == IP_VERSION(9, 4, 2)) + xnack_mode = false; + + return xnack_mode; +} |