From 20ee7681e9d5a21bf9d01be98a78ee0edf3e4eb6 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Christian=20K=C3=B6nig?= Date: Tue, 15 Aug 2017 17:08:12 +0200 Subject: [PATCH 1785/4131] 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 Reviewed-by: Chunming Zhou --- drivers/gpu/drm/amd/amdgpu/amdgpu_object.h | 3 +++ drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 35 +++++++++++------------------- 2 files changed, 16 insertions(+), 22 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h index 1ea128f..e2a8f2b 100755 --- 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 f5f3241..eee826d 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c @@ -1820,11 +1820,8 @@ 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) { @@ -1835,25 +1832,22 @@ 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; @@ -2454,9 +2448,7 @@ void amdgpu_vm_bo_invalidate(struct amdgpu_device *adev, list_for_each_entry(bo_base, &bo->va, bo_list) { bo_base->moved = true; - if (list_empty(&bo_base->vm_status)) - list_add(&bo_base->vm_status, - &bo_base->vm->moved); + spin_lock(&bo_base->vm->status_lock); spin_unlock(&bo_base->vm->status_lock); } } @@ -2543,7 +2535,6 @@ 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 */ -- 2.7.4