From: Thierry Reding <treding@nvidia.com>
Date: Tue, 20 Feb 2018 11:44:50 +0100
Subject: drm/amdgpu: Remove duplicate setting of ->need_swiotlb
Git-commit: 421334a8476fe53b147139e1221cf7b368dd7c6e
Patch-mainline: v4.17-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166

There's no need to set this before the number of DMA bits has been
properly determined.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
 drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c |    1 -
 1 file changed, 1 deletion(-)

--- a/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c
@@ -1105,7 +1105,6 @@ static int gmc_v8_0_sw_init(void *handle
 	 */
 	adev->need_dma32 = false;
 	dma_bits = adev->need_dma32 ? 32 : 40;
-	adev->need_swiotlb = drm_get_max_iomem() > ((u64)1 << dma_bits);
 	r = pci_set_dma_mask(adev->pdev, DMA_BIT_MASK(dma_bits));
 	if (r) {
 		adev->need_dma32 = true;