Re: [PATCH -next 2/3] drm/amdgpu: use clamp() in amdgpu_vm_adjust_size()

["Christian König" <christian.koenig@amd.com>]

Am 30.08.24 um 03:22 schrieb Li Zetao:
> When it needs to get a value within a certain interval, using clamp()
> makes the code easier to understand than min(max()).
>
> Signed-off-by: Li Zetao <lizetao1@huawei.com>

This patch and #1 is a nice cleanup and Reviewed-by: Christian König 
<christian.koenig@amd.com>

But as Alex also pointed out patch #3 is for Nouveau and not amdgpu.

Regards,
Christian.


> ---
>   drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
> index e20d19ae01b2..40f9a5d4f3c0 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
> @@ -2224,7 +2224,7 @@ void amdgpu_vm_adjust_size(struct amdgpu_device *adev, uint32_t min_vm_size,
>   		phys_ram_gb = ((uint64_t)si.totalram * si.mem_unit +
>   			       (1 << 30) - 1) >> 30;
>   		vm_size = roundup_pow_of_two(
> -			min(max(phys_ram_gb * 3, min_vm_size), max_size));
> +			clamp(phys_ram_gb * 3, min_vm_size, max_size));
>   	}
>   
>   	adev->vm_manager.max_pfn = (uint64_t)vm_size << 18;