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

[ Upstream commit 403475be6d8b122c3e6b8a47e075926d7299e5ef ]

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

Fixes: 244511f386ccb9 ("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>

diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c
index 0e81e03e9b498762febe0787028bf22e31d1d3d6..0fe714f54cca9b1e38d6d536cde126001ce5ecc4 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c
@@ -841,12 +841,12 @@ 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) {