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| author | Junwei Zhang <Jerry.Zhang@amd.com> | 2017-01-16 13:59:01 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2017-03-29 23:52:56 -0400 |
| commit | b85891bd6d1bf887b3398f4c44b7a30b37f4485e (patch) | |
| tree | cdc0d0f596927a2c869866bcbfd29007e5ce44d1 /drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c | |
| parent | 284710fa6c3a5fddbc0f8c6b3a07861a312c18d2 (diff) | |
| download | linux-b85891bd6d1bf887b3398f4c44b7a30b37f4485e.tar.gz linux-b85891bd6d1bf887b3398f4c44b7a30b37f4485e.tar.xz | |
drm/amdgpu: IOCTL interface for PRT support v4
Till GFX8 we can only enable PRT support globally, but with the next hardware
generation we can do this on a per page basis.
Keep the interface consistent by adding PRT mappings and enable
support globally on current hardware when the first mapping is made.
v2: disable PRT support delayed and on all error paths
v3: PRT and other permissions are mutal exclusive,
PRT mappings don't need a BO.
v4: update PRT mappings durign CS as well, make va_flags 64bit
Signed-off-by: Junwei Zhang <Jerry.Zhang@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c index 61d94c745672..49f93ee019e3 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c @@ -655,6 +655,14 @@ int amdgpu_driver_open_kms(struct drm_device *dev, struct drm_file *file_priv) goto out_suspend; } + fpriv->prt_va = amdgpu_vm_bo_add(adev, &fpriv->vm, NULL); + if (!fpriv->prt_va) { + r = -ENOMEM; + amdgpu_vm_fini(adev, &fpriv->vm); + kfree(fpriv); + goto out_suspend; + } + if (amdgpu_sriov_vf(adev)) { r = amdgpu_map_static_csa(adev, &fpriv->vm); if (r) @@ -699,6 +707,8 @@ void amdgpu_driver_postclose_kms(struct drm_device *dev, amdgpu_uvd_free_handles(adev, file_priv); amdgpu_vce_free_handles(adev, file_priv); + amdgpu_vm_bo_rmv(adev, fpriv->prt_va); + if (amdgpu_sriov_vf(adev)) { /* TODO: how to handle reserve failure */ BUG_ON(amdgpu_bo_reserve(adev->virt.csa_obj, false)); |