[PATCH] drm/amdgpu: Fix comparison in amdgpu_res_cpu_visible

[Alex Deucher]

On Wed, May 8, 2024 at 9:25 AM Michel Dänzer <michel at daenzer.net> wrote:
>
> From: Michel Dänzer <mdaenzer at redhat.com>
>
> It incorrectly claimed a resource isn't CPU visible if it's located at
> the very end of CPU visible VRAM.
>
> Fixes: a6ff969fe9 ("drm/amdgpu: fix visible VRAM handling during faults")
> Reported-and-Tested-by: Jeremy Day <jsday at noreason.ca>
> Signed-off-by: Michel Dänzer <mdaenzer at redhat.com>

Reviewed-by: Alex Deucher <alexander.deucher at amd.com>
and applied.  Thanks!

Alex

> ---
>  drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
> index 109fe557a02b..29c197c00018 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
> @@ -427,7 +427,7 @@ bool amdgpu_res_cpu_visible(struct amdgpu_device *adev,
>
>         amdgpu_res_first(res, 0, res->size, &cursor);
>         while (cursor.remaining) {
> -               if ((cursor.start + cursor.size) >= adev->gmc.visible_vram_size)
> +               if ((cursor.start + cursor.size) > adev->gmc.visible_vram_size)
>                         return false;
>                 amdgpu_res_next(&cursor, cursor.size);
>         }
> --
> 2.43.0
>