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drm/amdgpu/gmc6: fix DMA mask from 44 to 40 bits

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[ Upstream commit 403475be6d8b122c3e6b8a47e075926d7299e5ef ]

The DMA mask on SI parts is 40 bits not 44.  Copy
paste typo.

Fixes: 244511f386 ("drm/amdgpu: simplify and cleanup setting the dma mask")
Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1762
Acked-by: Christian König <christian.koenig@amd.com>
Tested-by: Paul Menzel <pmenzel@molgen.mpg.de>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Alex Deucher 2021-10-27 13:26:19 -04:00 committed by Greg Kroah-Hartman
parent a586453da9
commit ae1f588ca1
1 changed files with 2 additions and 2 deletions
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4
drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c
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@ -842,12 +842,12 @@ static int gmc_v6_0_sw_init(void *handle)
adev->gmc.mc_mask = 0xffffffffffULL;
r = dma_set_mask_and_coherent(adev->dev, DMA_BIT_MASK(44));
r = dma_set_mask_and_coherent(adev->dev, DMA_BIT_MASK(40));
if (r) {
dev_warn(adev->dev, "No suitable DMA available.\n");
return r;
}
adev->need_swiotlb = drm_need_swiotlb(44);
adev->need_swiotlb = drm_need_swiotlb(40);
r = gmc_v6_0_init_microcode(adev);
if (r) {