From: Alex Sierra <alex.sierra@xxxxxxx>
[why]
As part of the SVM functionality, the eviction mechanism used for
SVM_BOs is different. This mechanism uses one eviction fence per prange,
instead of one fence per kfd_process.
[how]
A svm_bo reference to amdgpu_amdkfd_fence to allow differentiate between
SVM_BO or regular BO evictions. This also include modifications to set the
reference at the fence creation call.
Signed-off-by: Alex Sierra <alex.sierra@xxxxxxx>
Signed-off-by: Felix Kuehling <Felix.Kuehling@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h | 4 +++-
drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_fence.c | 5 +++--
drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c | 6 ++++--
3 files changed, 10 insertions(+), 5 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h
index bc9f0e42e0a2..fb8be788ac1b 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h
@@ -75,6 +75,7 @@ struct amdgpu_amdkfd_fence {
struct mm_struct *mm;
spinlock_t lock;
char timeline_name[TASK_COMM_LEN];
+ struct svm_range_bo *svm_bo;
};
struct amdgpu_kfd_dev {
@@ -95,7 +96,8 @@ enum kgd_engine_type {
};
struct amdgpu_amdkfd_fence *amdgpu_amdkfd_fence_create(u64 context,
- struct mm_struct *mm);
+ struct mm_struct *mm,
+ struct svm_range_bo *svm_bo);
bool amdkfd_fence_check_mm(struct dma_fence *f, struct mm_struct *mm);
struct amdgpu_amdkfd_fence *to_amdgpu_amdkfd_fence(struct dma_fence *f);
int amdgpu_amdkfd_remove_fence_on_pt_pd_bos(struct amdgpu_bo *bo);
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_fence.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_fence.c
index 3107b9575929..9cc85efa4ed5 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_fence.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_fence.c
@@ -60,7 +60,8 @@ static atomic_t fence_seq = ATOMIC_INIT(0);
*/
struct amdgpu_amdkfd_fence *amdgpu_amdkfd_fence_create(u64 context,
- struct mm_struct *mm)
+ struct mm_struct *mm,
+ struct svm_range_bo *svm_bo)
{
struct amdgpu_amdkfd_fence *fence;
@@ -73,7 +74,7 @@ struct amdgpu_amdkfd_fence *amdgpu_amdkfd_fence_create(u64 context,
fence->mm = mm;
get_task_comm(fence->timeline_name, current);
spin_lock_init(&fence->lock);
-
+ fence->svm_bo = svm_bo;
dma_fence_init(&fence->base, &amdkfd_fence_ops, &fence->lock,
context, atomic_inc_return(&fence_seq));
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
index 99ad4e1d0896..8a43f3880022 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
@@ -928,7 +928,8 @@ static int init_kfd_vm(struct amdgpu_vm *vm, void **process_info,
info->eviction_fence =
amdgpu_amdkfd_fence_create(dma_fence_context_alloc(1),
- current->mm);
+ current->mm,
+ NULL);
if (!info->eviction_fence) {
pr_err("Failed to create eviction fence\n");
ret = -ENOMEM;
@@ -2150,7 +2151,8 @@ int amdgpu_amdkfd_gpuvm_restore_process_bos(void *info, struct dma_fence **ef)
*/
new_fence = amdgpu_amdkfd_fence_create(
process_info->eviction_fence->base.context,
- process_info->eviction_fence->mm);
+ process_info->eviction_fence->mm,
+ NULL);
if (!new_fence) {
pr_err("Failed to create eviction fence\n");
ret = -ENOMEM;
--
2.29.2
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