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From af46c355877c915701a133212d886b140f68d1c9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Christian=20K=C3=B6nig?= <christian.koenig@amd.com>
Date: Tue, 15 Aug 2017 17:08:12 +0200
Subject: [PATCH 0860/4131] drm/amdgpu: add bo_va cleared flag again v2
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
We changed this to use an extra list a while back, but for the next
series I need a separate flag again.
v2: reorder to avoid unlocked list access
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Chunming Zhou <david1.zhou@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_object.h | 3 +++
drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 35 +++++++++++-------------------
drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h | 3 ---
3 files changed, 16 insertions(+), 25 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h
index 18d1932..84667c6 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h
@@ -55,6 +55,9 @@ struct amdgpu_bo_va {
/* mappings for this bo_va */
struct list_head invalids;
struct list_head valids;
+
+ /* If the mappings are cleared or filled */
+ bool cleared;
};
struct amdgpu_bo {
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index 58745e1..fe20ef9 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -1809,11 +1809,8 @@ int amdgpu_vm_bo_update(struct amdgpu_device *adev,
bo_va->base.moved = false;
list_splice_init(&bo_va->valids, &bo_va->invalids);
- } else {
- spin_lock(&vm->status_lock);
- if (!list_empty(&bo_va->base.vm_status))
- list_splice_init(&bo_va->valids, &bo_va->invalids);
- spin_unlock(&vm->status_lock);
+ } else if (bo_va->cleared != clear) {
+ list_splice_init(&bo_va->valids, &bo_va->invalids);
}
list_for_each_entry(mapping, &bo_va->invalids, list) {
@@ -1824,25 +1821,22 @@ int amdgpu_vm_bo_update(struct amdgpu_device *adev,
return r;
}
- if (trace_amdgpu_vm_bo_mapping_enabled()) {
- list_for_each_entry(mapping, &bo_va->valids, list)
- trace_amdgpu_vm_bo_mapping(mapping);
-
- list_for_each_entry(mapping, &bo_va->invalids, list)
- trace_amdgpu_vm_bo_mapping(mapping);
+ if (vm->use_cpu_for_update) {
+ /* Flush HDP */
+ mb();
+ amdgpu_gart_flush_gpu_tlb(adev, 0);
}
spin_lock(&vm->status_lock);
- list_splice_init(&bo_va->invalids, &bo_va->valids);
list_del_init(&bo_va->base.vm_status);
- if (clear)
- list_add(&bo_va->base.vm_status, &vm->cleared);
spin_unlock(&vm->status_lock);
- if (vm->use_cpu_for_update) {
- /* Flush HDP */
- mb();
- amdgpu_gart_flush_gpu_tlb(adev, 0);
+ list_splice_init(&bo_va->invalids, &bo_va->valids);
+ bo_va->cleared = clear;
+
+ if (trace_amdgpu_vm_bo_mapping_enabled()) {
+ list_for_each_entry(mapping, &bo_va->valids, list)
+ trace_amdgpu_vm_bo_mapping(mapping);
}
return 0;
@@ -2444,9 +2438,7 @@ void amdgpu_vm_bo_invalidate(struct amdgpu_device *adev,
list_for_each_entry(bo_base, &bo->va, bo_list) {
bo_base->moved = true;
spin_lock(&bo_base->vm->status_lock);
- if (list_empty(&bo_base->vm_status))
- list_add(&bo_base->vm_status,
- &bo_base->vm->moved);
+ list_move(&bo_base->vm_status, &bo_base->vm->moved);
spin_unlock(&bo_base->vm->status_lock);
}
}
@@ -2533,7 +2525,6 @@ int amdgpu_vm_init(struct amdgpu_device *adev, struct amdgpu_vm *vm,
vm->reserved_vmid[i] = NULL;
spin_lock_init(&vm->status_lock);
INIT_LIST_HEAD(&vm->moved);
- INIT_LIST_HEAD(&vm->cleared);
INIT_LIST_HEAD(&vm->freed);
/* create scheduler entity for page table updates */
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
index 37aef84..3e1290c 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
@@ -129,9 +129,6 @@ struct amdgpu_vm {
/* BOs moved, but not yet updated in the PT */
struct list_head moved;
- /* BOs cleared in the PT because of a move */
- struct list_head cleared;
-
/* BO mappings freed, but not yet updated in the PT */
struct list_head freed;
--
2.7.4
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