diff options
| author | Christian König <christian.koenig@amd.com> | 2025-09-19 09:27:03 +0200 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2025-09-25 15:39:00 -0400 |
| commit | 90e09ea4cfd4aaaf07ababa6d8c880035587e7e9 (patch) | |
| tree | eaa937d2799aaaa8a1898bfeda63e4a1488cd44f /drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | |
| parent | 66f3883dbc9245ca96abf97c2a4dd2a1e898b32f (diff) | |
drm/amdgpu: revert "rework reserved VMID handling" v2
This reverts commit e44a0fe630c58b0a87d8281f5c1077a3479e5fce.
Initially we used VMID reservation to enforce isolation between
processes. That has now been replaced by proper fence handling.
Both OpenGL, RADV and ROCm developers requested a way to reserve a VMID
for SPM, so restore that approach by reverting back to only allowing a
single process to use the reserved VMID.
Only compile tested for now.
v2: use -ENOENT instead of -EINVAL if VMID is not available
Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 17 |
1 files changed, 4 insertions, 13 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c index 112ce584a5ad..8c28e8923f02 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c @@ -2790,10 +2790,7 @@ void amdgpu_vm_fini(struct amdgpu_device *adev, struct amdgpu_vm *vm) dma_fence_put(vm->last_update); for (i = 0; i < AMDGPU_MAX_VMHUBS; i++) { - if (vm->reserved_vmid[i]) { - amdgpu_vmid_free_reserved(adev, i); - vm->reserved_vmid[i] = false; - } + amdgpu_vmid_free_reserved(adev, vm, i); } ttm_lru_bulk_move_fini(&adev->mman.bdev, &vm->lru_bulk_move); @@ -2889,6 +2886,7 @@ int amdgpu_vm_ioctl(struct drm_device *dev, void *data, struct drm_file *filp) union drm_amdgpu_vm *args = data; struct amdgpu_device *adev = drm_to_adev(dev); struct amdgpu_fpriv *fpriv = filp->driver_priv; + struct amdgpu_vm *vm = &fpriv->vm; /* No valid flags defined yet */ if (args->in.flags) @@ -2897,17 +2895,10 @@ int amdgpu_vm_ioctl(struct drm_device *dev, void *data, struct drm_file *filp) switch (args->in.op) { case AMDGPU_VM_OP_RESERVE_VMID: /* We only have requirement to reserve vmid from gfxhub */ - if (!fpriv->vm.reserved_vmid[AMDGPU_GFXHUB(0)]) { - amdgpu_vmid_alloc_reserved(adev, AMDGPU_GFXHUB(0)); - fpriv->vm.reserved_vmid[AMDGPU_GFXHUB(0)] = true; - } - + amdgpu_vmid_alloc_reserved(adev, vm, AMDGPU_GFXHUB(0)); break; case AMDGPU_VM_OP_UNRESERVE_VMID: - if (fpriv->vm.reserved_vmid[AMDGPU_GFXHUB(0)]) { - amdgpu_vmid_free_reserved(adev, AMDGPU_GFXHUB(0)); - fpriv->vm.reserved_vmid[AMDGPU_GFXHUB(0)] = false; - } + amdgpu_vmid_free_reserved(adev, vm, AMDGPU_GFXHUB(0)); break; default: return -EINVAL; |