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path: root/drivers/gpu/drm/ttm/ttm_bo.c
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Diffstat (limited to 'drivers/gpu/drm/ttm/ttm_bo.c')
-rw-r--r--drivers/gpu/drm/ttm/ttm_bo.c129
1 files changed, 65 insertions, 64 deletions
diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
index ffc6cb55c78c..17478f38dea3 100644
--- a/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/drivers/gpu/drm/ttm/ttm_bo.c
@@ -163,6 +163,7 @@ static void ttm_bo_release_list(struct kref *list_kref)
void ttm_bo_add_to_lru(struct ttm_buffer_object *bo)
{
struct ttm_bo_device *bdev = bo->bdev;
+ struct ttm_mem_type_manager *man;
lockdep_assert_held(&bo->resv->lock.base);
@@ -170,11 +171,13 @@ void ttm_bo_add_to_lru(struct ttm_buffer_object *bo)
BUG_ON(!list_empty(&bo->lru));
- list_add(&bo->lru, bdev->driver->lru_tail(bo));
+ man = &bdev->man[bo->mem.mem_type];
+ list_add_tail(&bo->lru, &man->lru[bo->priority]);
kref_get(&bo->list_kref);
if (bo->ttm && !(bo->ttm->page_flags & TTM_PAGE_FLAG_SG)) {
- list_add(&bo->swap, bdev->driver->swap_lru_tail(bo));
+ list_add_tail(&bo->swap,
+ &bo->glob->swap_lru[bo->priority]);
kref_get(&bo->list_kref);
}
}
@@ -188,11 +191,6 @@ static void ttm_bo_ref_bug(struct kref *list_kref)
void ttm_bo_del_from_lru(struct ttm_buffer_object *bo)
{
- struct ttm_bo_device *bdev = bo->bdev;
-
- if (bdev->driver->lru_removal)
- bdev->driver->lru_removal(bo);
-
if (!list_empty(&bo->swap)) {
list_del_init(&bo->swap);
kref_put(&bo->list_kref, ttm_bo_ref_bug);
@@ -201,6 +199,11 @@ void ttm_bo_del_from_lru(struct ttm_buffer_object *bo)
list_del_init(&bo->lru);
kref_put(&bo->list_kref, ttm_bo_ref_bug);
}
+
+ /*
+ * TODO: Add a driver hook to delete from
+ * driver-specific LRU's here.
+ */
}
void ttm_bo_del_sub_from_lru(struct ttm_buffer_object *bo)
@@ -213,30 +216,13 @@ EXPORT_SYMBOL(ttm_bo_del_sub_from_lru);
void ttm_bo_move_to_lru_tail(struct ttm_buffer_object *bo)
{
- struct ttm_bo_device *bdev = bo->bdev;
-
lockdep_assert_held(&bo->resv->lock.base);
- if (bdev->driver->lru_removal)
- bdev->driver->lru_removal(bo);
-
ttm_bo_del_from_lru(bo);
ttm_bo_add_to_lru(bo);
}
EXPORT_SYMBOL(ttm_bo_move_to_lru_tail);
-struct list_head *ttm_bo_default_lru_tail(struct ttm_buffer_object *bo)
-{
- return bo->bdev->man[bo->mem.mem_type].lru.prev;
-}
-EXPORT_SYMBOL(ttm_bo_default_lru_tail);
-
-struct list_head *ttm_bo_default_swap_lru_tail(struct ttm_buffer_object *bo)
-{
- return bo->glob->swap_lru.prev;
-}
-EXPORT_SYMBOL(ttm_bo_default_swap_lru_tail);
-
/*
* Call bo->mutex locked.
*/
@@ -327,7 +313,7 @@ static int ttm_bo_handle_move_mem(struct ttm_buffer_object *bo,
if (bo->mem.mem_type == TTM_PL_SYSTEM) {
if (bdev->driver->move_notify)
- bdev->driver->move_notify(bo, mem);
+ bdev->driver->move_notify(bo, evict, mem);
bo->mem = *mem;
mem->mm_node = NULL;
goto moved;
@@ -335,7 +321,7 @@ static int ttm_bo_handle_move_mem(struct ttm_buffer_object *bo,
}
if (bdev->driver->move_notify)
- bdev->driver->move_notify(bo, mem);
+ bdev->driver->move_notify(bo, evict, mem);
if (!(old_man->flags & TTM_MEMTYPE_FLAG_FIXED) &&
!(new_man->flags & TTM_MEMTYPE_FLAG_FIXED))
@@ -351,7 +337,7 @@ static int ttm_bo_handle_move_mem(struct ttm_buffer_object *bo,
struct ttm_mem_reg tmp_mem = *mem;
*mem = bo->mem;
bo->mem = tmp_mem;
- bdev->driver->move_notify(bo, mem);
+ bdev->driver->move_notify(bo, false, mem);
bo->mem = *mem;
*mem = tmp_mem;
}
@@ -399,7 +385,7 @@ out_err:
static void ttm_bo_cleanup_memtype_use(struct ttm_buffer_object *bo)
{
if (bo->bdev->driver->move_notify)
- bo->bdev->driver->move_notify(bo, NULL);
+ bo->bdev->driver->move_notify(bo, false, NULL);
ttm_tt_destroy(bo->ttm);
bo->ttm = NULL;
@@ -719,20 +705,27 @@ static int ttm_mem_evict_first(struct ttm_bo_device *bdev,
struct ttm_mem_type_manager *man = &bdev->man[mem_type];
struct ttm_buffer_object *bo;
int ret = -EBUSY;
+ unsigned i;
spin_lock(&glob->lru_lock);
- list_for_each_entry(bo, &man->lru, lru) {
- ret = __ttm_bo_reserve(bo, false, true, NULL);
- if (ret)
- continue;
+ for (i = 0; i < TTM_MAX_BO_PRIORITY; ++i) {
+ list_for_each_entry(bo, &man->lru[i], lru) {
+ ret = __ttm_bo_reserve(bo, false, true, NULL);
+ if (ret)
+ continue;
- if (place && !bdev->driver->eviction_valuable(bo, place)) {
- __ttm_bo_unreserve(bo);
- ret = -EBUSY;
- continue;
+ if (place && !bdev->driver->eviction_valuable(bo,
+ place)) {
+ __ttm_bo_unreserve(bo);
+ ret = -EBUSY;
+ continue;
+ }
+
+ break;
}
- break;
+ if (!ret)
+ break;
}
if (ret) {
@@ -1173,6 +1166,7 @@ int ttm_bo_init(struct ttm_bo_device *bdev,
}
atomic_inc(&bo->glob->bo_count);
drm_vma_node_reset(&bo->vma_node);
+ bo->priority = 0;
/*
* For ttm_bo_type_device buffers, allocate
@@ -1267,29 +1261,27 @@ int ttm_bo_create(struct ttm_bo_device *bdev,
EXPORT_SYMBOL(ttm_bo_create);
static int ttm_bo_force_list_clean(struct ttm_bo_device *bdev,
- unsigned mem_type, bool allow_errors)
+ unsigned mem_type)
{
struct ttm_mem_type_manager *man = &bdev->man[mem_type];
struct ttm_bo_global *glob = bdev->glob;
struct dma_fence *fence;
int ret;
+ unsigned i;
/*
* Can't use standard list traversal since we're unlocking.
*/
spin_lock(&glob->lru_lock);
- while (!list_empty(&man->lru)) {
- spin_unlock(&glob->lru_lock);
- ret = ttm_mem_evict_first(bdev, mem_type, NULL, false, false);
- if (ret) {
- if (allow_errors) {
+ for (i = 0; i < TTM_MAX_BO_PRIORITY; ++i) {
+ while (!list_empty(&man->lru[i])) {
+ spin_unlock(&glob->lru_lock);
+ ret = ttm_mem_evict_first(bdev, mem_type, NULL, false, false);
+ if (ret)
return ret;
- } else {
- pr_err("Cleanup eviction failed\n");
- }
+ spin_lock(&glob->lru_lock);
}
- spin_lock(&glob->lru_lock);
}
spin_unlock(&glob->lru_lock);
@@ -1300,13 +1292,8 @@ static int ttm_bo_force_list_clean(struct ttm_bo_device *bdev,
if (fence) {
ret = dma_fence_wait(fence, false);
dma_fence_put(fence);
- if (ret) {
- if (allow_errors) {
- return ret;
- } else {
- pr_err("Cleanup eviction failed\n");
- }
- }
+ if (ret)
+ return ret;
}
return 0;
@@ -1335,7 +1322,11 @@ int ttm_bo_clean_mm(struct ttm_bo_device *bdev, unsigned mem_type)
ret = 0;
if (mem_type > 0) {
- ttm_bo_force_list_clean(bdev, mem_type, false);
+ ret = ttm_bo_force_list_clean(bdev, mem_type);
+ if (ret) {
+ pr_err("Cleanup eviction failed\n");
+ return ret;
+ }
ret = (*man->func->takedown)(man);
}
@@ -1358,7 +1349,7 @@ int ttm_bo_evict_mm(struct ttm_bo_device *bdev, unsigned mem_type)
return 0;
}
- return ttm_bo_force_list_clean(bdev, mem_type, true);
+ return ttm_bo_force_list_clean(bdev, mem_type);
}
EXPORT_SYMBOL(ttm_bo_evict_mm);
@@ -1367,6 +1358,7 @@ int ttm_bo_init_mm(struct ttm_bo_device *bdev, unsigned type,
{
int ret = -EINVAL;
struct ttm_mem_type_manager *man;
+ unsigned i;
BUG_ON(type >= TTM_NUM_MEM_TYPES);
man = &bdev->man[type];
@@ -1392,7 +1384,8 @@ int ttm_bo_init_mm(struct ttm_bo_device *bdev, unsigned type,
man->use_type = true;
man->size = p_size;
- INIT_LIST_HEAD(&man->lru);
+ for (i = 0; i < TTM_MAX_BO_PRIORITY; ++i)
+ INIT_LIST_HEAD(&man->lru[i]);
man->move = NULL;
return 0;
@@ -1424,6 +1417,7 @@ int ttm_bo_global_init(struct drm_global_reference *ref)
container_of(ref, struct ttm_bo_global_ref, ref);
struct ttm_bo_global *glob = ref->object;
int ret;
+ unsigned i;
mutex_init(&glob->device_list_mutex);
spin_lock_init(&glob->lru_lock);
@@ -1435,7 +1429,8 @@ int ttm_bo_global_init(struct drm_global_reference *ref)
goto out_no_drp;
}
- INIT_LIST_HEAD(&glob->swap_lru);
+ for (i = 0; i < TTM_MAX_BO_PRIORITY; ++i)
+ INIT_LIST_HEAD(&glob->swap_lru[i]);
INIT_LIST_HEAD(&glob->device_list);
ttm_mem_init_shrink(&glob->shrink, ttm_bo_swapout);
@@ -1494,8 +1489,9 @@ int ttm_bo_device_release(struct ttm_bo_device *bdev)
if (list_empty(&bdev->ddestroy))
TTM_DEBUG("Delayed destroy list was clean\n");
- if (list_empty(&bdev->man[0].lru))
- TTM_DEBUG("Swap list was clean\n");
+ for (i = 0; i < TTM_MAX_BO_PRIORITY; ++i)
+ if (list_empty(&bdev->man[0].lru[0]))
+ TTM_DEBUG("Swap list %d was clean\n", i);
spin_unlock(&glob->lru_lock);
drm_vma_offset_manager_destroy(&bdev->vma_manager);
@@ -1645,11 +1641,15 @@ static int ttm_bo_swapout(struct ttm_mem_shrink *shrink)
container_of(shrink, struct ttm_bo_global, shrink);
struct ttm_buffer_object *bo;
int ret = -EBUSY;
- uint32_t swap_placement = (TTM_PL_FLAG_CACHED | TTM_PL_FLAG_SYSTEM);
+ unsigned i;
spin_lock(&glob->lru_lock);
- list_for_each_entry(bo, &glob->swap_lru, swap) {
- ret = __ttm_bo_reserve(bo, false, true, NULL);
+ for (i = 0; i < TTM_MAX_BO_PRIORITY; ++i) {
+ list_for_each_entry(bo, &glob->swap_lru[i], swap) {
+ ret = __ttm_bo_reserve(bo, false, true, NULL);
+ if (!ret)
+ break;
+ }
if (!ret)
break;
}
@@ -1674,7 +1674,8 @@ static int ttm_bo_swapout(struct ttm_mem_shrink *shrink)
* Move to system cached
*/
- if ((bo->mem.placement & swap_placement) != swap_placement) {
+ if (bo->mem.mem_type != TTM_PL_SYSTEM ||
+ bo->ttm->caching_state != tt_cached) {
struct ttm_mem_reg evict_mem;
evict_mem = bo->mem;