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drm/amdgpu: Update SPM_VMID with the job's vmid when application reserves the vmid

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SPM access the video memory according to SPM_VMID. It should be updated
with the job's vmid right before the job is scheduled. SPM_VMID is a
global resource

Signed-off-by: Jacob He <jacob.he@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Jacob He 2020-02-28 20:24:41 +08:00 committed by Alex Deucher
parent 1a2172b5ee
commit 5e208eb62b
1 changed files with 20 additions and 0 deletions
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20
drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
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@ -1080,8 +1080,12 @@ int amdgpu_vm_flush(struct amdgpu_ring *ring, struct amdgpu_job *job,
struct dma_fence *fence = NULL;
bool pasid_mapping_needed = false;
unsigned patch_offset = 0;
bool update_spm_vmid_needed = (job->vm && (job->vm->reserved_vmid[vmhub] != NULL));
int r;
if (update_spm_vmid_needed && adev->gfx.rlc.funcs->update_spm_vmid)
adev->gfx.rlc.funcs->update_spm_vmid(adev, job->vmid);
if (amdgpu_vmid_had_gpu_reset(adev, id)) {
gds_switch_needed = true;
vm_flush_needed = true;
@ -3209,6 +3213,7 @@ int amdgpu_vm_ioctl(struct drm_device *dev, void *data, struct drm_file *filp)
union drm_amdgpu_vm *args = data;
struct amdgpu_device *adev = dev->dev_private;
struct amdgpu_fpriv *fpriv = filp->driver_priv;
long timeout = msecs_to_jiffies(2000);
int r;
switch (args->in.op) {
@ -3220,6 +3225,21 @@ int amdgpu_vm_ioctl(struct drm_device *dev, void *data, struct drm_file *filp)
return r;
break;
case AMDGPU_VM_OP_UNRESERVE_VMID:
if (amdgpu_sriov_runtime(adev))
timeout = 8 * timeout;
/* Wait vm idle to make sure the vmid set in SPM_VMID is
* not referenced anymore.
*/
r = amdgpu_bo_reserve(fpriv->vm.root.base.bo, true);
if (r)
return r;
r = amdgpu_vm_wait_idle(&fpriv->vm, timeout);
if (r < 0)
return r;
amdgpu_bo_unreserve(fpriv->vm.root.base.bo);
amdgpu_vmid_free_reserved(adev, &fpriv->vm, AMDGPU_GFXHUB_0);
break;
default: