From: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Date: Tue, 16 Jan 2018 10:06:36 -0500
Subject: drm/amdgpu: Use new TTM flag to avoid OOM triggering.
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Git-commit: 7cce9584310cbf82f64e1e397b28610a17f0de37
Patch-mainline: v4.17-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166

Avoid OOM on syatem pages allocations.

v2:
Remove modeprobe parameter, make this behaviour the only option.

v3:
Move setting no_retry flag into amdgpu_ttm_init.

Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c |    4 ++++
 1 file changed, 4 insertions(+)

--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -1388,6 +1388,10 @@ int amdgpu_ttm_init(struct amdgpu_device
 		return r;
 	}
 	adev->mman.initialized = true;
+
+	/* We opt to avoid OOM on system pages allocations */
+	adev->mman.bdev.no_retry = true;
+
 	r = ttm_bo_init_mm(&adev->mman.bdev, TTM_PL_VRAM,
 				adev->gmc.real_vram_size >> PAGE_SHIFT);
 	if (r) {