On 2020-08-06 2:56 p.m., Christian König wrote:
> We need to allocate that manually now.
>
> Signed-off-by: Christian König <christian.koenig@xxxxxxx>
> Fixes: 2ddef17678bc (HEAD) drm/ttm: make TT creation purely optional v3
> ---
> .../gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c | 2 +-
> drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c | 2 +-
> drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 17 +++++++++++------
> drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h | 4 ++--
> 4 files changed, 15 insertions(+), 10 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
> index 9015c7b76d60..55d2e870fdda 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
> @@ -564,7 +564,7 @@ static int init_user_pages(struct kgd_mem *mem, uint64_t user_addr)
>
> mutex_lock(&process_info->lock);
>
> - ret = amdgpu_ttm_tt_set_userptr(bo->tbo.ttm, user_addr, 0);
> + ret = amdgpu_ttm_tt_set_userptr(&bo->tbo, user_addr, 0);
> if (ret) {
> pr_err("%s: Failed to set userptr: %d\n", __func__, ret);
> goto out;
I suspect more needs to be done for KFD, e.g.
amdgpu_amdkfd_gpuvm_alloc_memory_of_gpu can dereference
bo->tbo.ttm before calling init_user_pages, and there are more usages of
bo->tbo.ttm that need to be audited.
--
Earthling Michel Dänzer | https://redhat.com
Libre software enthusiast | Mesa and X developer
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