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From 51bcb055e0c9c68b27383ecf95e8e282f23bc222 Mon Sep 17 00:00:00 2001
From: Harish Kasiviswanathan <Harish.Kasiviswanathan@amd.com>
Date: Fri, 2 Sep 2016 16:03:44 -0400
Subject: [PATCH 1518/4131] drm/amdgpu: Signal eviction fence
When amdgpu_amdkfd_fence.enable_signaling() is called, it means that GPU
scheduler has a job ready to evict a KFD BO. Notify KFD driver to
prepare for eviction.
Change-Id: I0a00a5df5e79f39e42d790842efacb67cc3e918b
Signed-off-by: Harish Kasiviswanathan <Harish.Kasiviswanathan@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_fence.c | 14 ++++++++++----
1 file changed, 10 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_fence.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_fence.c
index 6fdd24c..7026781 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_fence.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_fence.c
@@ -117,13 +117,19 @@ static const char *amd_kfd_fence_get_timeline_name(struct fence *f)
*/
static bool amd_kfd_fence_enable_signaling(struct fence *f)
{
+ struct amdgpu_amdkfd_fence *fence = to_amdgpu_amdkfd_fence(f);
+
+ if (!fence)
+ return false;
+
if (fence_is_signaled(f))
return true;
- /* TODO: If the fence is not signaled, call into KFD to schedule
- * work item that will prepare for KFD BO evictions
- */
- return true;
+ if (!kgd2kfd->schedule_evict_and_restore_process(
+ (struct mm_struct *)fence->mm, f))
+ return true;
+
+ return false;
}
static int amd_kfd_fence_signal(struct fence *f)
--
2.7.4
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