On Mon, Mar 21, 2022 at 02:26:00PM +0100, Christian König wrote:
> Instead of providing the bulk move structure for each LRU update set
> this as property of the BO. This should avoid costly bulk move rebuilds
> with some games under RADV.
>
> v2: some name polishing, add a few more kerneldoc words.
> v3: add some lockdep
> v4: fix bugs, handle pin/unpin as well
>
> Signed-off-by: Christian König <christian.koenig@xxxxxxx>
> Tested-by: Bas Nieuwenhuizen <bas@xxxxxxxxxxxxxxxxxxx>
I'm trusting my earlier review and the code has been update per that. I
think what's left to do is better kerneldoc:
- struct ttm_lru_bulk_move should have pointers to all the functions
drivers will need to use to use this correctly, specifically
ttm_bo_set_bulk_move().
- I think ttm_bo_set_bulk_move() should explain that once this is set you
don't need to call ttm_bo_move_to_lru_tail() anymore, but instead need
to guarantee that you're calling ttm_lru_bulk_move_tail()
I think with those connections explained this looks good.
Reviewed-by: Daniel Vetter <daniel.vetter@xxxxxxxx>
> ---
> drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 1 -
> drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 72 +++-----------------
> drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h | 3 -
> drivers/gpu/drm/i915/gem/i915_gem_ttm.c | 2 +-
> drivers/gpu/drm/ttm/ttm_bo.c | 59 +++++++++++++---
> drivers/gpu/drm/ttm/ttm_resource.c | 90 ++++++++++++++++++-------
> include/drm/ttm/ttm_bo_api.h | 16 ++---
> include/drm/ttm/ttm_bo_driver.h | 2 +-
> include/drm/ttm/ttm_device.h | 9 ---
> include/drm/ttm/ttm_resource.h | 9 ++-
> 10 files changed, 138 insertions(+), 125 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
> index 5859ed0552a4..57ac118fc266 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
> @@ -1498,7 +1498,6 @@ static struct ttm_device_funcs amdgpu_bo_driver = {
> .io_mem_reserve = &amdgpu_ttm_io_mem_reserve,
> .io_mem_pfn = amdgpu_ttm_io_mem_pfn,
> .access_memory = &amdgpu_ttm_access_memory,
> - .del_from_lru_notify = &amdgpu_vm_del_from_lru_notify
> };
>
> /*
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
> index f2ce5a0defd9..28f5e8b21a99 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
> @@ -375,7 +375,7 @@ static void amdgpu_vm_bo_base_init(struct amdgpu_vm_bo_base *base,
> if (bo->tbo.base.resv != vm->root.bo->tbo.base.resv)
> return;
>
> - vm->bulk_moveable = false;
> + ttm_bo_set_bulk_move(&bo->tbo, &vm->lru_bulk_move);
> if (bo->tbo.type == ttm_bo_type_kernel && bo->parent)
> amdgpu_vm_bo_relocated(base);
> else
> @@ -637,36 +637,6 @@ void amdgpu_vm_get_pd_bo(struct amdgpu_vm *vm,
> list_add(&entry->tv.head, validated);
> }
>
> -/**
> - * amdgpu_vm_del_from_lru_notify - update bulk_moveable flag
> - *
> - * @bo: BO which was removed from the LRU
> - *
> - * Make sure the bulk_moveable flag is updated when a BO is removed from the
> - * LRU.
> - */
> -void amdgpu_vm_del_from_lru_notify(struct ttm_buffer_object *bo)
> -{
> - struct amdgpu_bo *abo;
> - struct amdgpu_vm_bo_base *bo_base;
> -
> - if (!amdgpu_bo_is_amdgpu_bo(bo))
> - return;
> -
> - if (bo->pin_count)
> - return;
> -
> - abo = ttm_to_amdgpu_bo(bo);
> - if (!abo->parent)
> - return;
> - for (bo_base = abo->vm_bo; bo_base; bo_base = bo_base->next) {
> - struct amdgpu_vm *vm = bo_base->vm;
> -
> - if (abo->tbo.base.resv == vm->root.bo->tbo.base.resv)
> - vm->bulk_moveable = false;
> - }
> -
> -}
> /**
> * amdgpu_vm_move_to_lru_tail - move all BOs to the end of LRU
> *
> @@ -679,33 +649,9 @@ void amdgpu_vm_del_from_lru_notify(struct ttm_buffer_object *bo)
> void amdgpu_vm_move_to_lru_tail(struct amdgpu_device *adev,
> struct amdgpu_vm *vm)
> {
> - struct amdgpu_vm_bo_base *bo_base;
> -
> - if (vm->bulk_moveable) {
> - spin_lock(&adev->mman.bdev.lru_lock);
> - ttm_lru_bulk_move_tail(&vm->lru_bulk_move);
> - spin_unlock(&adev->mman.bdev.lru_lock);
> - return;
> - }
> -
> - ttm_lru_bulk_move_init(&vm->lru_bulk_move);
> -
> spin_lock(&adev->mman.bdev.lru_lock);
> - list_for_each_entry(bo_base, &vm->idle, vm_status) {
> - struct amdgpu_bo *bo = bo_base->bo;
> - struct amdgpu_bo *shadow = amdgpu_bo_shadowed(bo);
> -
> - if (!bo->parent)
> - continue;
> -
> - ttm_bo_move_to_lru_tail(&bo->tbo, &vm->lru_bulk_move);
> - if (shadow)
> - ttm_bo_move_to_lru_tail(&shadow->tbo,
> - &vm->lru_bulk_move);
> - }
> + ttm_lru_bulk_move_tail(&vm->lru_bulk_move);
> spin_unlock(&adev->mman.bdev.lru_lock);
> -
> - vm->bulk_moveable = true;
> }
>
> /**
> @@ -728,8 +674,6 @@ int amdgpu_vm_validate_pt_bos(struct amdgpu_device *adev, struct amdgpu_vm *vm,
> struct amdgpu_vm_bo_base *bo_base, *tmp;
> int r;
>
> - vm->bulk_moveable &= list_empty(&vm->evicted);
> -
> list_for_each_entry_safe(bo_base, tmp, &vm->evicted, vm_status) {
> struct amdgpu_bo *bo = bo_base->bo;
> struct amdgpu_bo *shadow = amdgpu_bo_shadowed(bo);
> @@ -1047,10 +991,16 @@ static void amdgpu_vm_free_table(struct amdgpu_vm_bo_base *entry)
>
> if (!entry->bo)
> return;
> +
> shadow = amdgpu_bo_shadowed(entry->bo);
> + if (shadow) {
> + ttm_bo_set_bulk_move(&shadow->tbo, NULL);
> + amdgpu_bo_unref(&shadow);
> + }
> +
> + ttm_bo_set_bulk_move(&entry->bo->tbo, NULL);
> entry->bo->vm_bo = NULL;
> list_del(&entry->vm_status);
> - amdgpu_bo_unref(&shadow);
> amdgpu_bo_unref(&entry->bo);
> }
>
> @@ -1070,8 +1020,6 @@ static void amdgpu_vm_free_pts(struct amdgpu_device *adev,
> struct amdgpu_vm_pt_cursor cursor;
> struct amdgpu_vm_bo_base *entry;
>
> - vm->bulk_moveable = false;
> -
> for_each_amdgpu_vm_pt_dfs_safe(adev, vm, start, cursor, entry)
> amdgpu_vm_free_table(entry);
>
> @@ -2651,7 +2599,7 @@ void amdgpu_vm_bo_rmv(struct amdgpu_device *adev,
>
> if (bo) {
> if (bo->tbo.base.resv == vm->root.bo->tbo.base.resv)
> - vm->bulk_moveable = false;
> + ttm_bo_set_bulk_move(&bo->tbo, NULL);
>
> for (base = &bo_va->base.bo->vm_bo; *base;
> base = &(*base)->next) {
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
> index 85fcfb8c5efd..4d236682a118 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
> @@ -317,8 +317,6 @@ struct amdgpu_vm {
>
> /* Store positions of group of BOs */
> struct ttm_lru_bulk_move lru_bulk_move;
> - /* mark whether can do the bulk move */
> - bool bulk_moveable;
> /* Flag to indicate if VM is used for compute */
> bool is_compute_context;
> };
> @@ -454,7 +452,6 @@ void amdgpu_vm_set_task_info(struct amdgpu_vm *vm);
>
> void amdgpu_vm_move_to_lru_tail(struct amdgpu_device *adev,
> struct amdgpu_vm *vm);
> -void amdgpu_vm_del_from_lru_notify(struct ttm_buffer_object *bo);
> void amdgpu_vm_get_memory(struct amdgpu_vm *vm, uint64_t *vram_mem,
> uint64_t *gtt_mem, uint64_t *cpu_mem);
>
> diff --git a/drivers/gpu/drm/i915/gem/i915_gem_ttm.c b/drivers/gpu/drm/i915/gem/i915_gem_ttm.c
> index 582e8dc9bc8c..6fc192082d8c 100644
> --- a/drivers/gpu/drm/i915/gem/i915_gem_ttm.c
> +++ b/drivers/gpu/drm/i915/gem/i915_gem_ttm.c
> @@ -849,7 +849,7 @@ void i915_ttm_adjust_lru(struct drm_i915_gem_object *obj)
> bo->priority = I915_TTM_PRIO_NO_PAGES;
> }
>
> - ttm_bo_move_to_lru_tail(bo, NULL);
> + ttm_bo_move_to_lru_tail(bo);
> spin_unlock(&bo->bdev->lru_lock);
> }
>
> diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
> index 502617ee9303..bbd068bbcd2e 100644
> --- a/drivers/gpu/drm/ttm/ttm_bo.c
> +++ b/drivers/gpu/drm/ttm/ttm_bo.c
> @@ -69,16 +69,53 @@ static void ttm_bo_mem_space_debug(struct ttm_buffer_object *bo,
> }
> }
>
> -void ttm_bo_move_to_lru_tail(struct ttm_buffer_object *bo,
> - struct ttm_lru_bulk_move *bulk)
> +/**
> + * ttm_bo_move_to_lru_tail
> + *
> + * @bo: The buffer object.
> + *
> + * Move this BO to the tail of all lru lists used to lookup and reserve an
> + * object. This function must be called with struct ttm_global::lru_lock
> + * held, and is used to make a BO less likely to be considered for eviction.
> + */
> +void ttm_bo_move_to_lru_tail(struct ttm_buffer_object *bo)
> {
> dma_resv_assert_held(bo->base.resv);
>
> if (bo->resource)
> - ttm_resource_move_to_lru_tail(bo->resource, bulk);
> + ttm_resource_move_to_lru_tail(bo->resource);
> }
> EXPORT_SYMBOL(ttm_bo_move_to_lru_tail);
>
> +/**
> + * ttm_bo_set_bulk_move - update BOs bulk move object
> + *
> + * @bo: The buffer object.
> + *
> + * Update the BOs bulk move object, making sure that resources are added/removed
> + * as well. A bulk move allows to move many resource on the LRU at once,
> + * resulting in much less overhead of maintaining the LRU.
> + * The only requirement is that the resources stay together on the LRU and are
> + * never separated. This is enforces by setting the bulk_move structure on a BO.
> + */
> +void ttm_bo_set_bulk_move(struct ttm_buffer_object *bo,
> + struct ttm_lru_bulk_move *bulk)
> +{
> + dma_resv_assert_held(bo->base.resv);
> +
> + if (bo->bulk_move == bulk)
> + return;
> +
> + spin_lock(&bo->bdev->lru_lock);
> + if (bo->bulk_move && bo->resource)
> + ttm_lru_bulk_move_del(bo->bulk_move, bo->resource);
> + bo->bulk_move = bulk;
> + if (bo->bulk_move && bo->resource)
> + ttm_lru_bulk_move_add(bo->bulk_move, bo->resource);
> + spin_unlock(&bo->bdev->lru_lock);
> +}
> +EXPORT_SYMBOL(ttm_bo_set_bulk_move);
> +
> static int ttm_bo_handle_move_mem(struct ttm_buffer_object *bo,
> struct ttm_resource *mem, bool evict,
> struct ttm_operation_ctx *ctx,
> @@ -316,6 +353,7 @@ static void ttm_bo_release(struct kref *kref)
> int ret;
>
> WARN_ON_ONCE(bo->pin_count);
> + WARN_ON_ONCE(bo->bulk_move);
>
> if (!bo->deleted) {
> ret = ttm_bo_individualize_resv(bo);
> @@ -352,7 +390,7 @@ static void ttm_bo_release(struct kref *kref)
> */
> if (bo->pin_count) {
> bo->pin_count = 0;
> - ttm_resource_move_to_lru_tail(bo->resource, NULL);
> + ttm_resource_move_to_lru_tail(bo->resource);
> }
>
> kref_init(&bo->kref);
> @@ -643,7 +681,8 @@ void ttm_bo_pin(struct ttm_buffer_object *bo)
> {
> dma_resv_assert_held(bo->base.resv);
> WARN_ON_ONCE(!kref_read(&bo->kref));
> - ++bo->pin_count;
> + if (!(bo->pin_count++) && bo->bulk_move && bo->resource)
> + ttm_lru_bulk_move_del(bo->bulk_move, bo->resource);
> }
> EXPORT_SYMBOL(ttm_bo_pin);
>
> @@ -657,10 +696,11 @@ void ttm_bo_unpin(struct ttm_buffer_object *bo)
> {
> dma_resv_assert_held(bo->base.resv);
> WARN_ON_ONCE(!kref_read(&bo->kref));
> - if (bo->pin_count)
> - --bo->pin_count;
> - else
> - WARN_ON_ONCE(true);
> + if (WARN_ON_ONCE(!bo->pin_count))
> + return;
> +
> + if (!(--bo->pin_count) && bo->bulk_move && bo->resource)
> + ttm_lru_bulk_move_add(bo->bulk_move, bo->resource);
> }
> EXPORT_SYMBOL(ttm_bo_unpin);
>
> @@ -905,6 +945,7 @@ int ttm_bo_init_reserved(struct ttm_device *bdev,
> bo->moving = NULL;
> bo->pin_count = 0;
> bo->sg = sg;
> + bo->bulk_move = NULL;
> if (resv) {
> bo->base.resv = resv;
> dma_resv_assert_held(bo->base.resv);
> diff --git a/drivers/gpu/drm/ttm/ttm_resource.c b/drivers/gpu/drm/ttm/ttm_resource.c
> index 25b0a23ba04b..bde43495b8fc 100644
> --- a/drivers/gpu/drm/ttm/ttm_resource.c
> +++ b/drivers/gpu/drm/ttm/ttm_resource.c
> @@ -73,42 +73,77 @@ void ttm_lru_bulk_move_tail(struct ttm_lru_bulk_move *bulk)
> }
> EXPORT_SYMBOL(ttm_lru_bulk_move_tail);
>
> -/* Record a resource position in a bulk move structure */
> -static void ttm_lru_bulk_move_set_pos(struct ttm_lru_bulk_move_pos *pos,
> - struct ttm_resource *res)
> +/* Return the bulk move pos object for this resource */
> +static struct ttm_lru_bulk_move_pos *
> +ttm_lru_bulk_move_pos(struct ttm_lru_bulk_move *bulk, struct ttm_resource *res)
> {
> - if (!pos->first)
> + return &bulk->pos[res->mem_type][res->bo->priority];
> +}
> +
> +/* Move the resource to the tail of the bulk move range */
> +static void ttm_lru_bulk_move_pos_tail(struct ttm_lru_bulk_move_pos *pos,
> + struct ttm_resource *res)
> +{
> + if (pos->last != res) {
> + list_move(&res->lru, &pos->last->lru);
> + pos->last = res;
> + }
> +}
> +
> +/* Add the resource to a bulk_move cursor */
> +void ttm_lru_bulk_move_add(struct ttm_lru_bulk_move *bulk,
> + struct ttm_resource *res)
> +{
> + struct ttm_lru_bulk_move_pos *pos = ttm_lru_bulk_move_pos(bulk, res);
> +
> + if (!pos->first) {
> pos->first = res;
> - pos->last = res;
> + pos->last = res;
> + } else {
> + ttm_lru_bulk_move_pos_tail(pos, res);
> + }
> +}
> +
> +/* Remove the resource from a bulk_move range */
> +void ttm_lru_bulk_move_del(struct ttm_lru_bulk_move *bulk,
> + struct ttm_resource *res)
> +{
> + struct ttm_lru_bulk_move_pos *pos = ttm_lru_bulk_move_pos(bulk, res);
> +
> + if (unlikely(pos->first == res && pos->last == res)) {
> + pos->first = NULL;
> + pos->last = NULL;
> + } else if (pos->first == res) {
> + pos->first = list_next_entry(res, lru);
> + } else if (pos->last == res) {
> + pos->last = list_prev_entry(res, lru);
> + } else {
> + list_move(&res->lru, &pos->last->lru);
> + }
> }
>
> -/* Move a resource to the LRU tail and track the bulk position */
> -void ttm_resource_move_to_lru_tail(struct ttm_resource *res,
> - struct ttm_lru_bulk_move *bulk)
> +/* Move a resource to the LRU or bulk tail */
> +void ttm_resource_move_to_lru_tail(struct ttm_resource *res)
> {
> struct ttm_buffer_object *bo = res->bo;
> struct ttm_device *bdev = bo->bdev;
> - struct ttm_resource_manager *man;
>
> lockdep_assert_held(&bo->bdev->lru_lock);
>
> if (bo->pin_count) {
> list_move_tail(&res->lru, &bdev->pinned);
> - if (bdev->funcs->del_from_lru_notify)
> - bdev->funcs->del_from_lru_notify(res->bo);
> - return;
> - }
>
> - man = ttm_manager_type(bdev, res->mem_type);
> - list_move_tail(&res->lru, &man->lru[bo->priority]);
> + } else if (bo->bulk_move) {
> + struct ttm_lru_bulk_move_pos *pos =
> + ttm_lru_bulk_move_pos(bo->bulk_move, res);
>
> - if (bdev->funcs->del_from_lru_notify)
> - bdev->funcs->del_from_lru_notify(bo);
> -
> - if (!bulk)
> - return;
> + ttm_lru_bulk_move_pos_tail(pos, res);
> + } else {
> + struct ttm_resource_manager *man;
>
> - ttm_lru_bulk_move_set_pos(&bulk->pos[res->mem_type][bo->priority], res);
> + man = ttm_manager_type(bdev, res->mem_type);
> + list_move_tail(&res->lru, &man->lru[bo->priority]);
> + }
> }
>
> /**
> @@ -139,7 +174,10 @@ void ttm_resource_init(struct ttm_buffer_object *bo,
> man = ttm_manager_type(bo->bdev, place->mem_type);
> spin_lock(&bo->bdev->lru_lock);
> man->usage += res->num_pages << PAGE_SHIFT;
> - ttm_resource_move_to_lru_tail(res, NULL);
> + if (bo->bulk_move)
> + ttm_lru_bulk_move_add(bo->bulk_move, res);
> + else
> + ttm_resource_move_to_lru_tail(res);
> spin_unlock(&bo->bdev->lru_lock);
> }
> EXPORT_SYMBOL(ttm_resource_init);
> @@ -161,8 +199,6 @@ void ttm_resource_fini(struct ttm_resource_manager *man,
>
> spin_lock(&bdev->lru_lock);
> list_del_init(&res->lru);
> - if (res->bo && bdev->funcs->del_from_lru_notify)
> - bdev->funcs->del_from_lru_notify(res->bo);
> man->usage -= res->num_pages << PAGE_SHIFT;
> spin_unlock(&bdev->lru_lock);
> }
> @@ -185,6 +221,12 @@ void ttm_resource_free(struct ttm_buffer_object *bo, struct ttm_resource **res)
> if (!*res)
> return;
>
> + if (bo->bulk_move) {
> + spin_lock(&bo->bdev->lru_lock);
> + ttm_lru_bulk_move_del(bo->bulk_move, *res);
> + spin_unlock(&bo->bdev->lru_lock);
> + }
> +
> man = ttm_manager_type(bo->bdev, (*res)->mem_type);
> man->func->free(man, *res);
> *res = NULL;
> diff --git a/include/drm/ttm/ttm_bo_api.h b/include/drm/ttm/ttm_bo_api.h
> index 885b7698fd65..c61e1e5ceb83 100644
> --- a/include/drm/ttm/ttm_bo_api.h
> +++ b/include/drm/ttm/ttm_bo_api.h
> @@ -135,6 +135,7 @@ struct ttm_buffer_object {
> struct ttm_resource *resource;
> struct ttm_tt *ttm;
> bool deleted;
> + struct ttm_lru_bulk_move *bulk_move;
>
> /**
> * Members protected by the bdev::lru_lock.
> @@ -287,18 +288,9 @@ int ttm_bo_validate(struct ttm_buffer_object *bo,
> */
> void ttm_bo_put(struct ttm_buffer_object *bo);
>
> -/**
> - * ttm_bo_move_to_lru_tail
> - *
> - * @bo: The buffer object.
> - * @bulk: optional bulk move structure to remember BO positions
> - *
> - * Move this BO to the tail of all lru lists used to lookup and reserve an
> - * object. This function must be called with struct ttm_global::lru_lock
> - * held, and is used to make a BO less likely to be considered for eviction.
> - */
> -void ttm_bo_move_to_lru_tail(struct ttm_buffer_object *bo,
> - struct ttm_lru_bulk_move *bulk);
> +void ttm_bo_move_to_lru_tail(struct ttm_buffer_object *bo);
> +void ttm_bo_set_bulk_move(struct ttm_buffer_object *bo,
> + struct ttm_lru_bulk_move *bulk);
>
> /**
> * ttm_bo_lock_delayed_workqueue
> diff --git a/include/drm/ttm/ttm_bo_driver.h b/include/drm/ttm/ttm_bo_driver.h
> index 6c7352e13708..059a595e14e5 100644
> --- a/include/drm/ttm/ttm_bo_driver.h
> +++ b/include/drm/ttm/ttm_bo_driver.h
> @@ -155,7 +155,7 @@ static inline void
> ttm_bo_move_to_lru_tail_unlocked(struct ttm_buffer_object *bo)
> {
> spin_lock(&bo->bdev->lru_lock);
> - ttm_bo_move_to_lru_tail(bo, NULL);
> + ttm_bo_move_to_lru_tail(bo);
> spin_unlock(&bo->bdev->lru_lock);
> }
>
> diff --git a/include/drm/ttm/ttm_device.h b/include/drm/ttm/ttm_device.h
> index 425150f35fbe..95b3c04b1ab9 100644
> --- a/include/drm/ttm/ttm_device.h
> +++ b/include/drm/ttm/ttm_device.h
> @@ -198,15 +198,6 @@ struct ttm_device_funcs {
> int (*access_memory)(struct ttm_buffer_object *bo, unsigned long offset,
> void *buf, int len, int write);
>
> - /**
> - * struct ttm_bo_driver member del_from_lru_notify
> - *
> - * @bo: the buffer object deleted from lru
> - *
> - * notify driver that a BO was deleted from LRU.
> - */
> - void (*del_from_lru_notify)(struct ttm_buffer_object *bo);
> -
> /**
> * Notify the driver that we're about to release a BO
> *
> diff --git a/include/drm/ttm/ttm_resource.h b/include/drm/ttm/ttm_resource.h
> index e8a64ca3cf25..07a17b22cf39 100644
> --- a/include/drm/ttm/ttm_resource.h
> +++ b/include/drm/ttm/ttm_resource.h
> @@ -202,7 +202,7 @@ struct ttm_resource_cursor {
> * @first: first res in the bulk move range
> * @last: last res in the bulk move range
> *
> - * Positions for a lru bulk move.
> + * Range of resources for a lru bulk move.
> */
> struct ttm_lru_bulk_move_pos {
> struct ttm_resource *first;
> @@ -308,10 +308,13 @@ ttm_resource_manager_cleanup(struct ttm_resource_manager *man)
> }
>
> void ttm_lru_bulk_move_init(struct ttm_lru_bulk_move *bulk);
> +void ttm_lru_bulk_move_add(struct ttm_lru_bulk_move *bulk,
> + struct ttm_resource *res);
> +void ttm_lru_bulk_move_del(struct ttm_lru_bulk_move *bulk,
> + struct ttm_resource *res);
> void ttm_lru_bulk_move_tail(struct ttm_lru_bulk_move *bulk);
>
> -void ttm_resource_move_to_lru_tail(struct ttm_resource *res,
> - struct ttm_lru_bulk_move *bulk);
> +void ttm_resource_move_to_lru_tail(struct ttm_resource *res);
>
> void ttm_resource_init(struct ttm_buffer_object *bo,
> const struct ttm_place *place,
> --
> 2.25.1
>
--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
