[PATCH] drm/amdgpu: fix dma mask check in gmc_v6_0.c

[Michael Labriola]

On Wed, Feb 20, 2019 at 9:30 AM Deucher, Alexander
<Alexander.Deucher at amd.com> wrote:
>
> Reviewed-by: Alex Deucher <alexander.deucher at amd.com>
> ________________________________
> From: amd-gfx <amd-gfx-bounces at lists.freedesktop.org> on behalf of Christian König <ckoenig.leichtzumerken at gmail.com>
> Sent: Wednesday, February 20, 2019 7:47 AM
> To: michael.d.labriola at gmail.com; amd-gfx at lists.freedesktop.org
> Subject: [PATCH] drm/amdgpu: fix dma mask check in gmc_v6_0.c
>
> This got messed up by "drm: change func to better detect wether swiotlb
> is needed".

Shoot, I thought I hunted all those down!  Sorry about that.

-Mike

>
> Signed-off-by: Christian König <christian.koenig at amd.com>
> ---
>  drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c
> index 9fc3296592fe..98fd9208877f 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c
> @@ -886,7 +886,7 @@ static int gmc_v6_0_sw_init(void *handle)
>                  pci_set_consistent_dma_mask(adev->pdev, DMA_BIT_MASK(32));
>                  dev_warn(adev->dev, "amdgpu: No coherent DMA available.\n");
>          }
> -       adev->need_swiotlb = drm_get_max_iomem() > ((u64)1 << dma_bits);
> +       adev->need_swiotlb = drm_need_swiotlb(dma_bits);
>
>          r = gmc_v6_0_init_microcode(adev);
>          if (r) {
> --
> 2.17.1
>
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-- 
Michael D Labriola
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