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From e6854ce0eb190516e7fde660dab8e9a3b47ac937 Mon Sep 17 00:00:00 2001
From: Jammy Zhou <Jammy.Zhou@amd.com>
Date: Mon, 9 Nov 2015 13:39:37 +0800
Subject: [PATCH 0766/4131] drm/amdgpu: expose the pinning capability to user
space
The module option amdgpu.no_evict is added, and it is disabled
by default now.
Change-Id: Ifc320cdccb84e715c6cf4e064ca359f7c02437ee
Signed-off-by: Jammy Zhou <Jammy.Zhou@amd.com>
Reviewed-by: Chunming Zhou <david1.zhou@amd.com>
Signed-off-by: Junwei Zhang <Jerry.Zhang@amd.com>
Conflicts:
drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
---
drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
index f08624f..4a9e85d 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
@@ -431,6 +431,14 @@ int amdgpu_bo_create_restricted(struct amdgpu_device *adev,
if (type == ttm_bo_type_device)
bo->flags &= ~AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED;
+ if ((flags & AMDGPU_GEM_CREATE_NO_EVICT) && amdgpu_no_evict) {
+ r = amdgpu_bo_reserve(bo, false);
+ if (unlikely(r != 0))
+ return r;
+ r = amdgpu_bo_pin(bo, domain, NULL);
+ amdgpu_bo_unreserve(bo);
+ }
+
return 0;
fail_unreserve:
--
2.7.4
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