[PATCH] drm/amdgpu: ensure no PCIe peer access for CPU XGMI iolinks

[Alex Sierra]

[Why] Devices with CPU XGMI iolink do not support PCIe peer access.

Signed-off-by: Alex Sierra <alex.sie...@amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c 
b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index ce7d117efdb5..1ff66718639d 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -5538,7 +5538,8 @@ bool amdgpu_device_is_peer_accessible(struct 
amdgpu_device *adev,
        return pcie_p2p && p2p_access && (adev->gmc.visible_vram_size &&
                adev->gmc.real_vram_size == adev->gmc.visible_vram_size &&
                !(adev->gmc.aper_base & address_mask ||
-                 aper_limit & address_mask));
+                 aper_limit & address_mask) &&
+               !adev->gmc.xgmi.connected_to_cpu);
 #else
        return false;
 #endif
-- 
2.32.0