From 3616d49da5dab635c4bb0eeb183b61df72cd0757 Mon Sep 17 00:00:00 2001
From: Aaron Liu <aaron.liu@amd.com>
Date: Tue, 19 Apr 2022 14:17:05 +0800
Subject: drm/amdgpu: enable swiotlb for gmc 10.0 (V2)
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Enable swiotlb for gmc 10.0.
v2: include drm_cache.h to use the function ‘drm_need_swiotlb’

Signed-off-by: Aaron Liu <aaron.liu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
 drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'drivers/gpu')

diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c
index 1772f006c61a..9ae8cdaa033e 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c
@@ -22,6 +22,9 @@
  */
 #include <linux/firmware.h>
 #include <linux/pci.h>
+
+#include <drm/drm_cache.h>
+
 #include "amdgpu.h"
 #include "amdgpu_atomfirmware.h"
 #include "gmc_v10_0.h"
@@ -980,6 +983,8 @@ static int gmc_v10_0_sw_init(void *handle)
 		return r;
 	}
 
+	adev->need_swiotlb = drm_need_swiotlb(44);
+
 	r = gmc_v10_0_mc_init(adev);
 	if (r)
 		return r;
-- 
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