From 51bcb055e0c9c68b27383ecf95e8e282f23bc222 Mon Sep 17 00:00:00 2001 From: Harish Kasiviswanathan 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 --- 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