2023-07-19 14:37:58

by Felix Kuehling

[permalink] [raw]
Subject: Re: [PATCH v2 2/4] drm/amdkfd: use vma_is_initial_stack() and vma_is_initial_heap()


Am 2023-07-19 um 03:51 schrieb Kefeng Wang:
> Use the helpers to simplify code.
>
> Cc: Felix Kuehling <[email protected]>
> Cc: Alex Deucher <[email protected]>
> Cc: "Christian König" <[email protected]>
> Cc: "Pan, Xinhui" <[email protected]>
> Cc: David Airlie <[email protected]>
> Cc: Daniel Vetter <[email protected]>
> Signed-off-by: Kefeng Wang <[email protected]>

Reviewed-by: Felix Kuehling <[email protected]>


> ---
> drivers/gpu/drm/amd/amdkfd/kfd_svm.c | 5 +----
> 1 file changed, 1 insertion(+), 4 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_svm.c b/drivers/gpu/drm/amd/amdkfd/kfd_svm.c
> index 5ff1a5a89d96..0b7bfbd0cb66 100644
> --- a/drivers/gpu/drm/amd/amdkfd/kfd_svm.c
> +++ b/drivers/gpu/drm/amd/amdkfd/kfd_svm.c
> @@ -2621,10 +2621,7 @@ svm_range_get_range_boundaries(struct kfd_process *p, int64_t addr,
> return -EFAULT;
> }
>
> - *is_heap_stack = (vma->vm_start <= vma->vm_mm->brk &&
> - vma->vm_end >= vma->vm_mm->start_brk) ||
> - (vma->vm_start <= vma->vm_mm->start_stack &&
> - vma->vm_end >= vma->vm_mm->start_stack);
> + *is_heap_stack = vma_is_initial_heap(vma) || vma_is_initial_stack(vma);
>
> start_limit = max(vma->vm_start >> PAGE_SHIFT,
> (unsigned long)ALIGN_DOWN(addr, 2UL << 8));