drm/amdgpu: Fix physical address mask

Mask should be 44-bit.

Signed-off-by: David Belanger <david.belanger@amd.com>
Reviewed-by: Harish Kasiviswanathan <Harish.Kasiviswanathan@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v12_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v12_0.c
index 3e6676fdc1875456564051b0de70ad463aec3d1c..2b7b67916c1ddf2543a1dff142bbc1d7f312a4d7 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v12_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v12_0.c
@@ -763,7 +763,7 @@ static int gmc_v12_0_sw_init(void *handle)
         */
        adev->gmc.mc_mask = 0xffffffffffffULL; /* 48 bit MC */
 
-       r = dma_set_mask_and_coherent(adev->dev, DMA_BIT_MASK(48));
+       r = dma_set_mask_and_coherent(adev->dev, DMA_BIT_MASK(44));
        if (r) {
                printk(KERN_WARNING "amdgpu: No suitable DMA available.\n");
                return r;