Re: [PATCH] drm/amdgpu: add a list in VM for BOs in the done state

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Am 16.10.20 um 12:55 schrieb Mihir Patel:
From: Mihir Bhogilal Patel <Mihir.Patel@xxxxxxx>

Add a new list in VM for done state i.e. BOs which are
invalidated and updated in PTEs.

Signed-off-by: Mihir Bhogilal Patel <Mihir.Patel@xxxxxxx>

Reviewed-by: Christian König <christian.koenig@xxxxxxx>

---
  drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 19 ++++++++++++++++---
  drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h |  3 +++
  2 files changed, 19 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index 122814c3ff5f..c08b76f4042a 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -300,7 +300,7 @@ static void amdgpu_vm_bo_relocated(struct amdgpu_vm_bo_base *vm_bo)
  static void amdgpu_vm_bo_done(struct amdgpu_vm_bo_base *vm_bo)
  {
  	spin_lock(&vm_bo->vm->invalidated_lock);
-	list_del_init(&vm_bo->vm_status);
+	list_move(&vm_bo->vm_status, &vm_bo->vm->done);
  	spin_unlock(&vm_bo->vm->invalidated_lock);
  }
@@ -2823,7 +2823,7 @@ int amdgpu_vm_init(struct amdgpu_device *adev, struct amdgpu_vm *vm,
  	INIT_LIST_HEAD(&vm->invalidated);
  	spin_lock_init(&vm->invalidated_lock);
  	INIT_LIST_HEAD(&vm->freed);
-
+	INIT_LIST_HEAD(&vm->done);
/* create scheduler entities for page table updates */
  	r = drm_sched_entity_init(&vm->immediate, DRM_SCHED_PRIORITY_NORMAL,
@@ -3410,11 +3410,13 @@ void amdgpu_debugfs_vm_bo_info(struct amdgpu_vm *vm, struct seq_file *m)
  	u64 total_relocated = 0;
  	u64 total_moved = 0;
  	u64 total_invalidated = 0;
+	u64 total_done = 0;
  	unsigned int total_idle_objs = 0;
  	unsigned int total_evicted_objs = 0;
  	unsigned int total_relocated_objs = 0;
  	unsigned int total_moved_objs = 0;
  	unsigned int total_invalidated_objs = 0;
+	unsigned int total_done_objs = 0;
  	unsigned int id = 0;
seq_puts(m, "\tIdle BOs:\n");
@@ -3460,8 +3462,17 @@ void amdgpu_debugfs_vm_bo_info(struct amdgpu_vm *vm, struct seq_file *m)
  			continue;
  		total_invalidated += amdgpu_bo_print_info(id++,	bo_va->base.bo, m);
  	}
-	spin_unlock(&vm->invalidated_lock);
  	total_invalidated_objs = id;
+	id = 0;
+
+	seq_puts(m, "\tDone BOs:\n");
+	list_for_each_entry_safe(bo_va, tmp, &vm->done, base.vm_status) {
+		if (!bo_va->base.bo)
+			continue;
+		total_done += amdgpu_bo_print_info(id++, bo_va->base.bo, m);
+	}
+	spin_unlock(&vm->invalidated_lock);
+	total_done_objs = id;
seq_printf(m, "\tTotal idle size: %12lld\tobjs:\t%d\n", total_idle,
  		   total_idle_objs);
@@ -3473,5 +3484,7 @@ void amdgpu_debugfs_vm_bo_info(struct amdgpu_vm *vm, struct seq_file *m)
  		   total_moved_objs);
  	seq_printf(m, "\tTotal invalidated size: %12lld\tobjs:\t%d\n", total_invalidated,
  		   total_invalidated_objs);
+	seq_printf(m, "\tTotal done size:        %12lld\tobjs:\t%d\n", total_done,
+		   total_done_objs);
  }
  #endif
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
index 74cc14179c41..ffea3b89b9da 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
@@ -274,6 +274,9 @@ struct amdgpu_vm {
  	/* BO mappings freed, but not yet updated in the PT */
  	struct list_head	freed;
+ /* BOs which are invalidated, has been updated in the PTs */
+	struct list_head        done;
+
  	/* contains the page directory */
  	struct amdgpu_vm_pt     root;
  	struct dma_fence	*last_update;

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