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drm/amdgpu: add option params to enforce process isolation between graphics and compute

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enforce process isolation between graphics and compute via using the same reserved vmid.

v2: remove params "struct amdgpu_vm *vm" from
    amdgpu_vmid_alloc_reserved and amdgpu_vmid_free_reserved.

Signed-off-by: Chong Li <chongli2@amd.com>
Reviewed-by: Christian Koenig <Christian.Koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Chong Li
2023-06-07 15:56:12 +08:00
committed by Alex Deucher
parent 4e70da985c
commit 80e709ee6e
5 changed files with 36 additions and 23 deletions
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25
drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
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@@ -2284,8 +2284,14 @@ 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++)
amdgpu_vmid_free_reserved(adev, vm, i);
for (i = 0; i < AMDGPU_MAX_VMHUBS; i++) {
if (vm->reserved_vmid[i]) {
amdgpu_vmid_free_reserved(adev, i);
vm->reserved_vmid[i] = false;
}
}
}
/**
@@ -2368,7 +2374,6 @@ 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;
int r;
/* No valid flags defined yet */
if (args->in.flags)
@@ -2377,13 +2382,17 @@ 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 */
r = amdgpu_vmid_alloc_reserved(adev, &fpriv->vm,
AMDGPU_GFXHUB(0));
if (r)
return r;
if (!fpriv->vm.reserved_vmid[AMDGPU_GFXHUB(0)]) {
amdgpu_vmid_alloc_reserved(adev, AMDGPU_GFXHUB(0));
fpriv->vm.reserved_vmid[AMDGPU_GFXHUB(0)] = true;
}
break;
case AMDGPU_VM_OP_UNRESERVE_VMID:
amdgpu_vmid_free_reserved(adev, &fpriv->vm, AMDGPU_GFXHUB(0));
if (fpriv->vm.reserved_vmid[AMDGPU_GFXHUB(0)]) {
amdgpu_vmid_free_reserved(adev, AMDGPU_GFXHUB(0));
fpriv->vm.reserved_vmid[AMDGPU_GFXHUB(0)] = false;
}
break;
default:
return -EINVAL;