On Fri, Mar 13, 2026 at 2:09 PM Sunil Khatri <[email protected]> wrote:
>
> This reverts commit 16410ab88726e098332e79f2a950b8b452ed0cb4.
>
> Reverting due to some of the probable issues caused by this change
> and CI is blocked.
>
> Signed-off-by: Sunil Khatri <[email protected]>

Acked-by: Alex Deucher <[email protected]>

> ---
>  drivers/gpu/drm/amd/amdgpu/amdgpu_userq.c |   8 +-
>  drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c    | 146 ++++++++++++++--------
>  drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h    |  15 +--
>  drivers/gpu/drm/amd/amdgpu/amdgpu_vm_pt.c |   4 +
>  4 files changed, 105 insertions(+), 68 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_userq.c 
> b/drivers/gpu/drm/amd/amdgpu/amdgpu_userq.c
> index cd599b4a9d75..8681582bb3a9 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_userq.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_userq.c
> @@ -1040,12 +1040,12 @@ amdgpu_userq_bo_validate(struct amdgpu_device *adev, 
> struct drm_exec *exec,
>         struct amdgpu_bo *bo;
>         int ret;
>
> -       spin_lock(&vm->invalidated_lock);
> +       spin_lock(&vm->status_lock);
>         while (!list_empty(&vm->invalidated)) {
>                 bo_va = list_first_entry(&vm->invalidated,
>                                          struct amdgpu_bo_va,
>                                          base.vm_status);
> -               spin_unlock(&vm->invalidated_lock);
> +               spin_unlock(&vm->status_lock);
>
>                 bo = bo_va->base.bo;
>                 ret = drm_exec_prepare_obj(exec, &bo->tbo.base, 2);
> @@ -1062,9 +1062,9 @@ amdgpu_userq_bo_validate(struct amdgpu_device *adev, 
> struct drm_exec *exec,
>                 if (ret)
>                         return ret;
>
> -               spin_lock(&vm->invalidated_lock);
> +               spin_lock(&vm->status_lock);
>         }
> -       spin_unlock(&vm->invalidated_lock);
> +       spin_unlock(&vm->status_lock);
>
>         return 0;
>  }
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c 
> b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
> index b89013a6aa0b..01fef0e4f408 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
> @@ -153,10 +153,12 @@ static void amdgpu_vm_bo_evicted(struct 
> amdgpu_vm_bo_base *vm_bo)
>
>         vm_bo->moved = true;
>         amdgpu_vm_assert_locked(vm);
> +       spin_lock(&vm_bo->vm->status_lock);
>         if (bo->tbo.type == ttm_bo_type_kernel)
>                 list_move(&vm_bo->vm_status, &vm->evicted);
>         else
>                 list_move_tail(&vm_bo->vm_status, &vm->evicted);
> +       spin_unlock(&vm_bo->vm->status_lock);
>  }
>  /**
>   * amdgpu_vm_bo_moved - vm_bo is moved
> @@ -169,7 +171,9 @@ static void amdgpu_vm_bo_evicted(struct amdgpu_vm_bo_base 
> *vm_bo)
>  static void amdgpu_vm_bo_moved(struct amdgpu_vm_bo_base *vm_bo)
>  {
>         amdgpu_vm_assert_locked(vm_bo->vm);
> +       spin_lock(&vm_bo->vm->status_lock);
>         list_move(&vm_bo->vm_status, &vm_bo->vm->moved);
> +       spin_unlock(&vm_bo->vm->status_lock);
>  }
>
>  /**
> @@ -183,7 +187,9 @@ static void amdgpu_vm_bo_moved(struct amdgpu_vm_bo_base 
> *vm_bo)
>  static void amdgpu_vm_bo_idle(struct amdgpu_vm_bo_base *vm_bo)
>  {
>         amdgpu_vm_assert_locked(vm_bo->vm);
> +       spin_lock(&vm_bo->vm->status_lock);
>         list_move(&vm_bo->vm_status, &vm_bo->vm->idle);
> +       spin_unlock(&vm_bo->vm->status_lock);
>         vm_bo->moved = false;
>  }
>
> @@ -197,9 +203,9 @@ static void amdgpu_vm_bo_idle(struct amdgpu_vm_bo_base 
> *vm_bo)
>   */
>  static void amdgpu_vm_bo_invalidated(struct amdgpu_vm_bo_base *vm_bo)
>  {
> -       spin_lock(&vm_bo->vm->invalidated_lock);
> +       spin_lock(&vm_bo->vm->status_lock);
>         list_move(&vm_bo->vm_status, &vm_bo->vm->invalidated);
> -       spin_unlock(&vm_bo->vm->invalidated_lock);
> +       spin_unlock(&vm_bo->vm->status_lock);
>  }
>
>  /**
> @@ -212,9 +218,10 @@ static void amdgpu_vm_bo_invalidated(struct 
> amdgpu_vm_bo_base *vm_bo)
>   */
>  static void amdgpu_vm_bo_evicted_user(struct amdgpu_vm_bo_base *vm_bo)
>  {
> -       amdgpu_vm_assert_locked(vm_bo->vm);
>         vm_bo->moved = true;
> +       spin_lock(&vm_bo->vm->status_lock);
>         list_move(&vm_bo->vm_status, &vm_bo->vm->evicted_user);
> +       spin_unlock(&vm_bo->vm->status_lock);
>  }
>
>  /**
> @@ -228,10 +235,13 @@ static void amdgpu_vm_bo_evicted_user(struct 
> amdgpu_vm_bo_base *vm_bo)
>  static void amdgpu_vm_bo_relocated(struct amdgpu_vm_bo_base *vm_bo)
>  {
>         amdgpu_vm_assert_locked(vm_bo->vm);
> -       if (vm_bo->bo->parent)
> +       if (vm_bo->bo->parent) {
> +               spin_lock(&vm_bo->vm->status_lock);
>                 list_move(&vm_bo->vm_status, &vm_bo->vm->relocated);
> -       else
> +               spin_unlock(&vm_bo->vm->status_lock);
> +       } else {
>                 amdgpu_vm_bo_idle(vm_bo);
> +       }
>  }
>
>  /**
> @@ -245,7 +255,9 @@ 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)
>  {
>         amdgpu_vm_assert_locked(vm_bo->vm);
> +       spin_lock(&vm_bo->vm->status_lock);
>         list_move(&vm_bo->vm_status, &vm_bo->vm->done);
> +       spin_unlock(&vm_bo->vm->status_lock);
>  }
>
>  /**
> @@ -259,13 +271,13 @@ static void amdgpu_vm_bo_reset_state_machine(struct 
> amdgpu_vm *vm)
>  {
>         struct amdgpu_vm_bo_base *vm_bo, *tmp;
>
> -       spin_lock(&vm->invalidated_lock);
> +       amdgpu_vm_assert_locked(vm);
> +
> +       spin_lock(&vm->status_lock);
>         list_splice_init(&vm->done, &vm->invalidated);
>         list_for_each_entry(vm_bo, &vm->invalidated, vm_status)
>                 vm_bo->moved = true;
> -       spin_unlock(&vm->invalidated_lock);
>
> -       amdgpu_vm_assert_locked(vm);
>         list_for_each_entry_safe(vm_bo, tmp, &vm->idle, vm_status) {
>                 struct amdgpu_bo *bo = vm_bo->bo;
>
> @@ -275,13 +287,14 @@ static void amdgpu_vm_bo_reset_state_machine(struct 
> amdgpu_vm *vm)
>                 else if (bo->parent)
>                         list_move(&vm_bo->vm_status, &vm_bo->vm->relocated);
>         }
> +       spin_unlock(&vm->status_lock);
>  }
>
>  /**
>   * amdgpu_vm_update_shared - helper to update shared memory stat
>   * @base: base structure for tracking BO usage in a VM
>   *
> - * Takes the vm stats_lock and updates the shared memory stat. If the basic
> + * Takes the vm status_lock and updates the shared memory stat. If the basic
>   * stat changed (e.g. buffer was moved) amdgpu_vm_update_stats need to be 
> called
>   * as well.
>   */
> @@ -294,7 +307,7 @@ static void amdgpu_vm_update_shared(struct 
> amdgpu_vm_bo_base *base)
>         bool shared;
>
>         dma_resv_assert_held(bo->tbo.base.resv);
> -       spin_lock(&vm->stats_lock);
> +       spin_lock(&vm->status_lock);
>         shared = drm_gem_object_is_shared_for_memory_stats(&bo->tbo.base);
>         if (base->shared != shared) {
>                 base->shared = shared;
> @@ -306,7 +319,7 @@ static void amdgpu_vm_update_shared(struct 
> amdgpu_vm_bo_base *base)
>                         vm->stats[bo_memtype].drm.private += size;
>                 }
>         }
> -       spin_unlock(&vm->stats_lock);
> +       spin_unlock(&vm->status_lock);
>  }
>
>  /**
> @@ -331,11 +344,11 @@ void amdgpu_vm_bo_update_shared(struct amdgpu_bo *bo)
>   *        be bo->tbo.resource
>   * @sign: if we should add (+1) or subtract (-1) from the stat
>   *
> - * Caller need to have the vm stats_lock held. Useful for when multiple 
> update
> + * Caller need to have the vm status_lock held. Useful for when multiple 
> update
>   * need to happen at the same time.
>   */
>  static void amdgpu_vm_update_stats_locked(struct amdgpu_vm_bo_base *base,
> -                                         struct ttm_resource *res, int sign)
> +                           struct ttm_resource *res, int sign)
>  {
>         struct amdgpu_vm *vm = base->vm;
>         struct amdgpu_bo *bo = base->bo;
> @@ -359,8 +372,7 @@ static void amdgpu_vm_update_stats_locked(struct 
> amdgpu_vm_bo_base *base,
>                  */
>                 if (bo->flags & AMDGPU_GEM_CREATE_DISCARDABLE)
>                         vm->stats[res_memtype].drm.purgeable += size;
> -               if (!(bo->preferred_domains &
> -                     amdgpu_mem_type_to_domain(res_memtype)))
> +               if (!(bo->preferred_domains & 
> amdgpu_mem_type_to_domain(res_memtype)))
>                         vm->stats[bo_memtype].evicted += size;
>         }
>  }
> @@ -379,9 +391,9 @@ void amdgpu_vm_update_stats(struct amdgpu_vm_bo_base 
> *base,
>  {
>         struct amdgpu_vm *vm = base->vm;
>
> -       spin_lock(&vm->stats_lock);
> +       spin_lock(&vm->status_lock);
>         amdgpu_vm_update_stats_locked(base, res, sign);
> -       spin_unlock(&vm->stats_lock);
> +       spin_unlock(&vm->status_lock);
>  }
>
>  /**
> @@ -407,10 +419,10 @@ void amdgpu_vm_bo_base_init(struct amdgpu_vm_bo_base 
> *base,
>         base->next = bo->vm_bo;
>         bo->vm_bo = base;
>
> -       spin_lock(&vm->stats_lock);
> +       spin_lock(&vm->status_lock);
>         base->shared = 
> drm_gem_object_is_shared_for_memory_stats(&bo->tbo.base);
>         amdgpu_vm_update_stats_locked(base, bo->tbo.resource, +1);
> -       spin_unlock(&vm->stats_lock);
> +       spin_unlock(&vm->status_lock);
>
>         if (!amdgpu_vm_is_bo_always_valid(vm, bo))
>                 return;
> @@ -469,25 +481,25 @@ int amdgpu_vm_lock_done_list(struct amdgpu_vm *vm, 
> struct drm_exec *exec,
>         int ret;
>
>         /* We can only trust prev->next while holding the lock */
> -       spin_lock(&vm->invalidated_lock);
> +       spin_lock(&vm->status_lock);
>         while (!list_is_head(prev->next, &vm->done)) {
>                 bo_va = list_entry(prev->next, typeof(*bo_va), 
> base.vm_status);
>
>                 bo = bo_va->base.bo;
>                 if (bo) {
>                         amdgpu_bo_ref(bo);
> -                       spin_unlock(&vm->invalidated_lock);
> +                       spin_unlock(&vm->status_lock);
>
>                         ret = drm_exec_prepare_obj(exec, &bo->tbo.base, 1);
>                         amdgpu_bo_unref(&bo);
>                         if (unlikely(ret))
>                                 return ret;
>
> -                       spin_lock(&vm->invalidated_lock);
> +                       spin_lock(&vm->status_lock);
>                 }
>                 prev = prev->next;
>         }
> -       spin_unlock(&vm->invalidated_lock);
> +       spin_unlock(&vm->status_lock);
>
>         return 0;
>  }
> @@ -583,7 +595,7 @@ int amdgpu_vm_validate(struct amdgpu_device *adev, struct 
> amdgpu_vm *vm,
>                        void *param)
>  {
>         uint64_t new_vm_generation = amdgpu_vm_generation(adev, vm);
> -       struct amdgpu_vm_bo_base *bo_base, *tmp;
> +       struct amdgpu_vm_bo_base *bo_base;
>         struct amdgpu_bo *bo;
>         int r;
>
> @@ -596,7 +608,13 @@ int amdgpu_vm_validate(struct amdgpu_device *adev, 
> struct amdgpu_vm *vm,
>                         return r;
>         }
>
> -       list_for_each_entry_safe(bo_base, tmp, &vm->evicted, vm_status) {
> +       spin_lock(&vm->status_lock);
> +       while (!list_empty(&vm->evicted)) {
> +               bo_base = list_first_entry(&vm->evicted,
> +                                          struct amdgpu_vm_bo_base,
> +                                          vm_status);
> +               spin_unlock(&vm->status_lock);
> +
>                 bo = bo_base->bo;
>
>                 r = validate(param, bo);
> @@ -609,21 +627,26 @@ int amdgpu_vm_validate(struct amdgpu_device *adev, 
> struct amdgpu_vm *vm,
>                         vm->update_funcs->map_table(to_amdgpu_bo_vm(bo));
>                         amdgpu_vm_bo_relocated(bo_base);
>                 }
> +               spin_lock(&vm->status_lock);
>         }
> +       while (ticket && !list_empty(&vm->evicted_user)) {
> +               bo_base = list_first_entry(&vm->evicted_user,
> +                                          struct amdgpu_vm_bo_base,
> +                                          vm_status);
> +               spin_unlock(&vm->status_lock);
>
> -       if (ticket) {
> -               list_for_each_entry_safe(bo_base, tmp, &vm->evicted_user,
> -                                        vm_status) {
> -                       bo = bo_base->bo;
> -                       dma_resv_assert_held(bo->tbo.base.resv);
> +               bo = bo_base->bo;
> +               dma_resv_assert_held(bo->tbo.base.resv);
>
> -                       r = validate(param, bo);
> -                       if (r)
> -                               return r;
> +               r = validate(param, bo);
> +               if (r)
> +                       return r;
>
> -                       amdgpu_vm_bo_invalidated(bo_base);
> -               }
> +               amdgpu_vm_bo_invalidated(bo_base);
> +
> +               spin_lock(&vm->status_lock);
>         }
> +       spin_unlock(&vm->status_lock);
>
>         amdgpu_vm_eviction_lock(vm);
>         vm->evicting = false;
> @@ -652,7 +675,9 @@ bool amdgpu_vm_ready(struct amdgpu_vm *vm)
>         ret = !vm->evicting;
>         amdgpu_vm_eviction_unlock(vm);
>
> +       spin_lock(&vm->status_lock);
>         ret &= list_empty(&vm->evicted);
> +       spin_unlock(&vm->status_lock);
>
>         spin_lock(&vm->immediate.lock);
>         ret &= !vm->immediate.stopped;
> @@ -946,13 +971,18 @@ int amdgpu_vm_update_pdes(struct amdgpu_device *adev,
>                           struct amdgpu_vm *vm, bool immediate)
>  {
>         struct amdgpu_vm_update_params params;
> -       struct amdgpu_vm_bo_base *entry, *tmp;
> +       struct amdgpu_vm_bo_base *entry;
>         bool flush_tlb_needed = false;
> +       LIST_HEAD(relocated);
>         int r, idx;
>
>         amdgpu_vm_assert_locked(vm);
>
> -       if (list_empty(&vm->relocated))
> +       spin_lock(&vm->status_lock);
> +       list_splice_init(&vm->relocated, &relocated);
> +       spin_unlock(&vm->status_lock);
> +
> +       if (list_empty(&relocated))
>                 return 0;
>
>         if (!drm_dev_enter(adev_to_drm(adev), &idx))
> @@ -968,7 +998,7 @@ int amdgpu_vm_update_pdes(struct amdgpu_device *adev,
>         if (r)
>                 goto error;
>
> -       list_for_each_entry(entry, &vm->relocated, vm_status) {
> +       list_for_each_entry(entry, &relocated, vm_status) {
>                 /* vm_flush_needed after updating moved PDEs */
>                 flush_tlb_needed |= entry->moved;
>
> @@ -984,7 +1014,9 @@ int amdgpu_vm_update_pdes(struct amdgpu_device *adev,
>         if (flush_tlb_needed)
>                 atomic64_inc(&vm->tlb_seq);
>
> -       list_for_each_entry_safe(entry, tmp, &vm->relocated, vm_status) {
> +       while (!list_empty(&relocated)) {
> +               entry = list_first_entry(&relocated, struct amdgpu_vm_bo_base,
> +                                        vm_status);
>                 amdgpu_vm_bo_idle(entry);
>         }
>
> @@ -1211,9 +1243,9 @@ int amdgpu_vm_update_range(struct amdgpu_device *adev, 
> struct amdgpu_vm *vm,
>  void amdgpu_vm_get_memory(struct amdgpu_vm *vm,
>                           struct amdgpu_mem_stats stats[__AMDGPU_PL_NUM])
>  {
> -       spin_lock(&vm->stats_lock);
> +       spin_lock(&vm->status_lock);
>         memcpy(stats, vm->stats, sizeof(*stats) * __AMDGPU_PL_NUM);
> -       spin_unlock(&vm->stats_lock);
> +       spin_unlock(&vm->status_lock);
>  }
>
>  /**
> @@ -1580,24 +1612,29 @@ int amdgpu_vm_handle_moved(struct amdgpu_device *adev,
>                            struct amdgpu_vm *vm,
>                            struct ww_acquire_ctx *ticket)
>  {
> -       struct amdgpu_bo_va *bo_va, *tmp;
> +       struct amdgpu_bo_va *bo_va;
>         struct dma_resv *resv;
>         bool clear, unlock;
>         int r;
>
> -       list_for_each_entry_safe(bo_va, tmp, &vm->moved, base.vm_status) {
> +       spin_lock(&vm->status_lock);
> +       while (!list_empty(&vm->moved)) {
> +               bo_va = list_first_entry(&vm->moved, struct amdgpu_bo_va,
> +                                        base.vm_status);
> +               spin_unlock(&vm->status_lock);
> +
>                 /* Per VM BOs never need to bo cleared in the page tables */
>                 r = amdgpu_vm_bo_update(adev, bo_va, false);
>                 if (r)
>                         return r;
> +               spin_lock(&vm->status_lock);
>         }
>
> -       spin_lock(&vm->invalidated_lock);
>         while (!list_empty(&vm->invalidated)) {
>                 bo_va = list_first_entry(&vm->invalidated, struct 
> amdgpu_bo_va,
>                                          base.vm_status);
>                 resv = bo_va->base.bo->tbo.base.resv;
> -               spin_unlock(&vm->invalidated_lock);
> +               spin_unlock(&vm->status_lock);
>
>                 /* Try to reserve the BO to avoid clearing its ptes */
>                 if (!adev->debug_vm && dma_resv_trylock(resv)) {
> @@ -1629,9 +1666,9 @@ int amdgpu_vm_handle_moved(struct amdgpu_device *adev,
>                      bo_va->base.bo->tbo.resource->mem_type == TTM_PL_SYSTEM))
>                         amdgpu_vm_bo_evicted_user(&bo_va->base);
>
> -               spin_lock(&vm->invalidated_lock);
> +               spin_lock(&vm->status_lock);
>         }
> -       spin_unlock(&vm->invalidated_lock);
> +       spin_unlock(&vm->status_lock);
>
>         return 0;
>  }
> @@ -2174,9 +2211,9 @@ void amdgpu_vm_bo_del(struct amdgpu_device *adev,
>                 }
>         }
>
> -       spin_lock(&vm->invalidated_lock);
> +       spin_lock(&vm->status_lock);
>         list_del(&bo_va->base.vm_status);
> -       spin_unlock(&vm->invalidated_lock);
> +       spin_unlock(&vm->status_lock);
>
>         list_for_each_entry_safe(mapping, next, &bo_va->valids, list) {
>                 list_del(&mapping->list);
> @@ -2284,10 +2321,10 @@ void amdgpu_vm_bo_move(struct amdgpu_bo *bo, struct 
> ttm_resource *new_mem,
>         for (bo_base = bo->vm_bo; bo_base; bo_base = bo_base->next) {
>                 struct amdgpu_vm *vm = bo_base->vm;
>
> -               spin_lock(&vm->stats_lock);
> +               spin_lock(&vm->status_lock);
>                 amdgpu_vm_update_stats_locked(bo_base, bo->tbo.resource, -1);
>                 amdgpu_vm_update_stats_locked(bo_base, new_mem, +1);
> -               spin_unlock(&vm->stats_lock);
> +               spin_unlock(&vm->status_lock);
>         }
>
>         amdgpu_vm_bo_invalidate(bo, evicted);
> @@ -2559,12 +2596,11 @@ int amdgpu_vm_init(struct amdgpu_device *adev, struct 
> amdgpu_vm *vm,
>         INIT_LIST_HEAD(&vm->relocated);
>         INIT_LIST_HEAD(&vm->moved);
>         INIT_LIST_HEAD(&vm->idle);
> -       spin_lock_init(&vm->invalidated_lock);
>         INIT_LIST_HEAD(&vm->invalidated);
> +       spin_lock_init(&vm->status_lock);
>         INIT_LIST_HEAD(&vm->freed);
>         INIT_LIST_HEAD(&vm->done);
>         INIT_KFIFO(vm->faults);
> -       spin_lock_init(&vm->stats_lock);
>
>         r = amdgpu_vm_init_entities(adev, vm);
>         if (r)
> @@ -3032,6 +3068,7 @@ void amdgpu_debugfs_vm_bo_info(struct amdgpu_vm *vm, 
> struct seq_file *m)
>
>         amdgpu_vm_assert_locked(vm);
>
> +       spin_lock(&vm->status_lock);
>         seq_puts(m, "\tIdle BOs:\n");
>         list_for_each_entry_safe(bo_va, tmp, &vm->idle, base.vm_status) {
>                 if (!bo_va->base.bo)
> @@ -3069,13 +3106,11 @@ void amdgpu_debugfs_vm_bo_info(struct amdgpu_vm *vm, 
> struct seq_file *m)
>         id = 0;
>
>         seq_puts(m, "\tInvalidated BOs:\n");
> -       spin_lock(&vm->invalidated_lock);
>         list_for_each_entry_safe(bo_va, tmp, &vm->invalidated, 
> base.vm_status) {
>                 if (!bo_va->base.bo)
>                         continue;
>                 total_invalidated += amdgpu_bo_print_info(id++, 
> bo_va->base.bo, m);
>         }
> -       spin_unlock(&vm->invalidated_lock);
>         total_invalidated_objs = id;
>         id = 0;
>
> @@ -3085,6 +3120,7 @@ void amdgpu_debugfs_vm_bo_info(struct amdgpu_vm *vm, 
> struct seq_file *m)
>                         continue;
>                 total_done += amdgpu_bo_print_info(id++, bo_va->base.bo, m);
>         }
> +       spin_unlock(&vm->status_lock);
>         total_done_objs = id;
>
>         seq_printf(m, "\tTotal idle size:        %12lld\tobjs:\t%d\n", 
> total_idle,
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h 
> b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
> index ae9449d5b00c..dc4b0ec672ec 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
> @@ -205,11 +205,11 @@ struct amdgpu_vm_bo_base {
>         /* protected by bo being reserved */
>         struct amdgpu_vm_bo_base        *next;
>
> -       /* protected by vm reservation and invalidated_lock */
> +       /* protected by vm status_lock */
>         struct list_head                vm_status;
>
>         /* if the bo is counted as shared in mem stats
> -        * protected by vm BO being reserved */
> +        * protected by vm status_lock */
>         bool                            shared;
>
>         /* protected by the BO being reserved */
> @@ -345,8 +345,10 @@ struct amdgpu_vm {
>         bool                    evicting;
>         unsigned int            saved_flags;
>
> -       /* Memory statistics for this vm, protected by stats_lock */
> -       spinlock_t              stats_lock;
> +       /* Lock to protect vm_bo add/del/move on all lists of vm */
> +       spinlock_t              status_lock;
> +
> +       /* Memory statistics for this vm, protected by status_lock */
>         struct amdgpu_mem_stats stats[__AMDGPU_PL_NUM];
>
>         /*
> @@ -354,8 +356,6 @@ struct amdgpu_vm {
>          * PDs, PTs or per VM BOs. The state transits are:
>          *
>          * evicted -> relocated (PDs, PTs) or moved (per VM BOs) -> idle
> -        *
> -        * Lists are protected by the root PD dma_resv lock.
>          */
>
>         /* Per-VM and PT BOs who needs a validation */
> @@ -376,10 +376,7 @@ struct amdgpu_vm {
>          * state transits are:
>          *
>          * evicted_user or invalidated -> done
> -        *
> -        * Lists are protected by the invalidated_lock.
>          */
> -       spinlock_t              invalidated_lock;
>
>         /* BOs for user mode queues that need a validation */
>         struct list_head        evicted_user;
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_pt.c 
> b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_pt.c
> index 7bdd664f0770..31a437ce9570 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_pt.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_pt.c
> @@ -544,7 +544,9 @@ static void amdgpu_vm_pt_free(struct amdgpu_vm_bo_base 
> *entry)
>         entry->bo->vm_bo = NULL;
>         ttm_bo_set_bulk_move(&entry->bo->tbo, NULL);
>
> +       spin_lock(&entry->vm->status_lock);
>         list_del(&entry->vm_status);
> +       spin_unlock(&entry->vm->status_lock);
>         amdgpu_bo_unref(&entry->bo);
>  }
>
> @@ -588,6 +590,7 @@ static void amdgpu_vm_pt_add_list(struct 
> amdgpu_vm_update_params *params,
>         struct amdgpu_vm_pt_cursor seek;
>         struct amdgpu_vm_bo_base *entry;
>
> +       spin_lock(&params->vm->status_lock);
>         for_each_amdgpu_vm_pt_dfs_safe(params->adev, params->vm, cursor, 
> seek, entry) {
>                 if (entry && entry->bo)
>                         list_move(&entry->vm_status, 
> &params->tlb_flush_waitlist);
> @@ -595,6 +598,7 @@ static void amdgpu_vm_pt_add_list(struct 
> amdgpu_vm_update_params *params,
>
>         /* enter start node now */
>         list_move(&cursor->entry->vm_status, &params->tlb_flush_waitlist);
> +       spin_unlock(&params->vm->status_lock);
>  }
>
>  /**
> --
> 2.34.1
>

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