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From 059312c749d5b0f13b1ed9fb2475d7c82fd39d11 Mon Sep 17 00:00:00 2001
From: pding <Pixel.Ding@amd.com>
Date: Mon, 30 Oct 2017 14:07:24 +0800
Subject: [PATCH 2093/4131] drm/amdgpu: retry init if exclusive mode request is
failed
This is caused of that hypervisor fails to handle request, one known
issue is MMIO unblocking timeout. In theory we can retry init here.
Signed-off-by: pding <Pixel.Ding@amd.com>
Reviewed-by: Xiangliang Yu <Xiangliang.Yu@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 812d725..c606f97 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -1651,7 +1651,7 @@ static int amdgpu_early_init(struct amdgpu_device *adev)
if (amdgpu_sriov_vf(adev)) {
r = amdgpu_virt_request_full_gpu(adev, true);
if (r)
- return r;
+ return -EAGAIN;
}
for (i = 0; i < adev->num_ip_blocks; i++) {
--
2.7.4
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