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drm/amdgpu: don't update page tables for VM emulation

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It's just overhead to do so and allocating a VMID
when we don't need one is actually a bit dangerous.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Christian König 2016-06-22 14:25:55 +02:00 committed by Alex Deucher
parent d5b4e25d83
commit 9a79588c42
1 changed files with 8 additions and 7 deletions
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15
drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
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@ -656,20 +656,21 @@ static int amdgpu_cs_ib_vm_chunk(struct amdgpu_device *adev,
/* Only for UVD/VCE VM emulation */
if (ring->funcs->parse_cs) {
p->job->vm = NULL;
for (i = 0; i < p->job->num_ibs; i++) {
r = amdgpu_ring_parse_cs(ring, p, i);
if (r)
return r;
}
} else {
p->job->vm_pd_addr = amdgpu_bo_gpu_offset(vm->page_directory);
r = amdgpu_bo_vm_update_pte(p, vm);
if (r)
return r;
}
p->job->vm_pd_addr = amdgpu_bo_gpu_offset(vm->page_directory);
r = amdgpu_bo_vm_update_pte(p, vm);
if (!r)
amdgpu_cs_sync_rings(p);
return r;
return amdgpu_cs_sync_rings(p);
}
static int amdgpu_cs_handle_lockup(struct amdgpu_device *adev, int r)