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drm/ttm: remove pointers to globals

Bladeren bron 
As the name says global memory and bo accounting is global. So it doesn't
make to much sense having pointers to global structures all around the code.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Thomas Hellström <thellstrom@vmware.com>
Link: https://patchwork.freedesktop.org/patch/332879/
This commit is contained in:
Christian König
2019-09-25 11:38:50 +02:00
bovenliggende 9165fb879f
commit 97588b5b9a
15 gewijzigde bestanden met toevoegingen van 57 en 88 verwijderingen
Download Patch-bestand Download Diff-bestand Expand all files Collapse all files

65
drivers/gpu/drm/ttm/ttm_bo.c
Bestand weergeven

@@ -51,6 +51,7 @@ static void ttm_bo_global_kobj_release(struct kobject *kobj);
DEFINE_MUTEX(ttm_global_mutex);
unsigned ttm_bo_glob_use_count;
struct ttm_bo_global ttm_bo_glob;
EXPORT_SYMBOL(ttm_bo_glob);
static struct attribute ttm_bo_count = {
.name = "bo_count",
@@ -148,7 +149,6 @@ static void ttm_bo_release_list(struct kref *list_kref)
{
struct ttm_buffer_object *bo =
container_of(list_kref, struct ttm_buffer_object, list_kref);
struct ttm_bo_device *bdev = bo->bdev;
size_t acc_size = bo->acc_size;
BUG_ON(kref_read(&bo->list_kref));
@@ -157,13 +157,13 @@ static void ttm_bo_release_list(struct kref *list_kref)
BUG_ON(!list_empty(&bo->lru));
BUG_ON(!list_empty(&bo->ddestroy));
ttm_tt_destroy(bo->ttm);
atomic_dec(&bo->bdev->glob->bo_count);
atomic_dec(&ttm_bo_glob.bo_count);
dma_fence_put(bo->moving);
if (!ttm_bo_uses_embedded_gem_object(bo))
dma_resv_fini(&bo->base._resv);
mutex_destroy(&bo->wu_mutex);
bo->destroy(bo);
ttm_mem_global_free(bdev->glob->mem_glob, acc_size);
ttm_mem_global_free(&ttm_mem_glob, acc_size);
}
static void ttm_bo_add_mem_to_lru(struct ttm_buffer_object *bo,
@@ -187,7 +187,7 @@ static void ttm_bo_add_mem_to_lru(struct ttm_buffer_object *bo,
if (!(man->flags & TTM_MEMTYPE_FLAG_FIXED) && bo->ttm &&
!(bo->ttm->page_flags & (TTM_PAGE_FLAG_SG |
TTM_PAGE_FLAG_SWAPPED))) {
list_add_tail(&bo->swap, &bdev->glob->swap_lru[bo->priority]);
list_add_tail(&bo->swap, &ttm_bo_glob.swap_lru[bo->priority]);
kref_get(&bo->list_kref);
}
}
@@ -294,7 +294,7 @@ void ttm_bo_bulk_move_lru_tail(struct ttm_lru_bulk_move *bulk)
dma_resv_assert_held(pos->first->base.resv);
dma_resv_assert_held(pos->last->base.resv);
lru = &pos->first->bdev->glob->swap_lru[i];
lru = &ttm_bo_glob.swap_lru[i];
list_bulk_move_tail(lru, &pos->first->swap, &pos->last->swap);
}
}
@@ -458,7 +458,6 @@ static void ttm_bo_flush_all_fences(struct ttm_buffer_object *bo)
static void ttm_bo_cleanup_refs_or_queue(struct ttm_buffer_object *bo)
{
struct ttm_bo_device *bdev = bo->bdev;
struct ttm_bo_global *glob = bdev->glob;
int ret;
ret = ttm_bo_individualize_resv(bo);
@@ -468,16 +467,16 @@ static void ttm_bo_cleanup_refs_or_queue(struct ttm_buffer_object *bo)
*/
dma_resv_wait_timeout_rcu(bo->base.resv, true, false,
30 * HZ);
spin_lock(&glob->lru_lock);
spin_lock(&ttm_bo_glob.lru_lock);
goto error;
}
spin_lock(&glob->lru_lock);
spin_lock(&ttm_bo_glob.lru_lock);
ret = dma_resv_trylock(bo->base.resv) ? 0 : -EBUSY;
if (!ret) {
if (dma_resv_test_signaled_rcu(&bo->base._resv, true)) {
ttm_bo_del_from_lru(bo);
spin_unlock(&glob->lru_lock);
spin_unlock(&ttm_bo_glob.lru_lock);
if (bo->base.resv != &bo->base._resv)
dma_resv_unlock(&bo->base._resv);
@@ -506,7 +505,7 @@ static void ttm_bo_cleanup_refs_or_queue(struct ttm_buffer_object *bo)
error:
kref_get(&bo->list_kref);
list_add_tail(&bo->ddestroy, &bdev->ddestroy);
spin_unlock(&glob->lru_lock);
spin_unlock(&ttm_bo_glob.lru_lock);
schedule_delayed_work(&bdev->wq,
((HZ / 100) < 1) ? 1 : HZ / 100);
@@ -529,7 +528,6 @@ static int ttm_bo_cleanup_refs(struct ttm_buffer_object *bo,
bool interruptible, bool no_wait_gpu,
bool unlock_resv)
{
struct ttm_bo_global *glob = bo->bdev->glob;
struct dma_resv *resv;
int ret;
@@ -548,7 +546,7 @@ static int ttm_bo_cleanup_refs(struct ttm_buffer_object *bo,
if (unlock_resv)
dma_resv_unlock(bo->base.resv);
spin_unlock(&glob->lru_lock);
spin_unlock(&ttm_bo_glob.lru_lock);
lret = dma_resv_wait_timeout_rcu(resv, true,
interruptible,
@@ -559,7 +557,7 @@ static int ttm_bo_cleanup_refs(struct ttm_buffer_object *bo,
else if (lret == 0)
return -EBUSY;
spin_lock(&glob->lru_lock);
spin_lock(&ttm_bo_glob.lru_lock);
if (unlock_resv && !dma_resv_trylock(bo->base.resv)) {
/*
* We raced, and lost, someone else holds the reservation now,
@@ -569,7 +567,7 @@ static int ttm_bo_cleanup_refs(struct ttm_buffer_object *bo,
* delayed destruction would succeed, so just return success
* here.
*/
spin_unlock(&glob->lru_lock);
spin_unlock(&ttm_bo_glob.lru_lock);
return 0;
}
ret = 0;
@@ -578,7 +576,7 @@ static int ttm_bo_cleanup_refs(struct ttm_buffer_object *bo,
if (ret || unlikely(list_empty(&bo->ddestroy))) {
if (unlock_resv)
dma_resv_unlock(bo->base.resv);
spin_unlock(&glob->lru_lock);
spin_unlock(&ttm_bo_glob.lru_lock);
return ret;
}
@@ -586,7 +584,7 @@ static int ttm_bo_cleanup_refs(struct ttm_buffer_object *bo,
list_del_init(&bo->ddestroy);
kref_put(&bo->list_kref, ttm_bo_ref_bug);
spin_unlock(&glob->lru_lock);
spin_unlock(&ttm_bo_glob.lru_lock);
ttm_bo_cleanup_memtype_use(bo);
if (unlock_resv)
@@ -601,7 +599,7 @@ static int ttm_bo_cleanup_refs(struct ttm_buffer_object *bo,
*/
static bool ttm_bo_delayed_delete(struct ttm_bo_device *bdev, bool remove_all)
{
struct ttm_bo_global *glob = bdev->glob;
struct ttm_bo_global *glob = &ttm_bo_glob;
struct list_head removed;
bool empty;
@@ -825,13 +823,12 @@ static int ttm_mem_evict_first(struct ttm_bo_device *bdev,
struct ww_acquire_ctx *ticket)
{
struct ttm_buffer_object *bo = NULL, *busy_bo = NULL;
struct ttm_bo_global *glob = bdev->glob;
struct ttm_mem_type_manager *man = &bdev->man[mem_type];
bool locked = false;
unsigned i;
int ret;
spin_lock(&glob->lru_lock);
spin_lock(&ttm_bo_glob.lru_lock);
for (i = 0; i < TTM_MAX_BO_PRIORITY; ++i) {
list_for_each_entry(bo, &man->lru[i], lru) {
bool busy;
@@ -863,7 +860,7 @@ static int ttm_mem_evict_first(struct ttm_bo_device *bdev,
if (!bo) {
if (busy_bo)
kref_get(&busy_bo->list_kref);
spin_unlock(&glob->lru_lock);
spin_unlock(&ttm_bo_glob.lru_lock);
ret = ttm_mem_evict_wait_busy(busy_bo, ctx, ticket);
if (busy_bo)
kref_put(&busy_bo->list_kref, ttm_bo_release_list);
@@ -879,7 +876,7 @@ static int ttm_mem_evict_first(struct ttm_bo_device *bdev,
return ret;
}
spin_unlock(&glob->lru_lock);
spin_unlock(&ttm_bo_glob.lru_lock);
ret = ttm_bo_evict(bo, ctx);
if (locked)
@@ -1045,10 +1042,10 @@ static int ttm_bo_mem_placement(struct ttm_buffer_object *bo,
mem->mem_type = mem_type;
mem->placement = cur_flags;
spin_lock(&bo->bdev->glob->lru_lock);
spin_lock(&ttm_bo_glob.lru_lock);
ttm_bo_del_from_lru(bo);
ttm_bo_add_mem_to_lru(bo, mem);
spin_unlock(&bo->bdev->glob->lru_lock);
spin_unlock(&ttm_bo_glob.lru_lock);
return 0;
}
@@ -1135,9 +1132,9 @@ int ttm_bo_mem_space(struct ttm_buffer_object *bo,
error:
if (bo->mem.mem_type == TTM_PL_SYSTEM && !list_empty(&bo->lru)) {
spin_lock(&bo->bdev->glob->lru_lock);
spin_lock(&ttm_bo_glob.lru_lock);
ttm_bo_move_to_lru_tail(bo, NULL);
spin_unlock(&bo->bdev->glob->lru_lock);
spin_unlock(&ttm_bo_glob.lru_lock);
}
return ret;
@@ -1261,9 +1258,9 @@ int ttm_bo_init_reserved(struct ttm_bo_device *bdev,
struct dma_resv *resv,
void (*destroy) (struct ttm_buffer_object *))
{
struct ttm_mem_global *mem_glob = &ttm_mem_glob;
int ret = 0;
unsigned long num_pages;
struct ttm_mem_global *mem_glob = bdev->glob->mem_glob;
bool locked;
ret = ttm_mem_global_alloc(mem_glob, acc_size, ctx);
@@ -1323,7 +1320,7 @@ int ttm_bo_init_reserved(struct ttm_bo_device *bdev,
dma_resv_init(&bo->base._resv);
drm_vma_node_reset(&bo->base.vma_node);
}
atomic_inc(&bo->bdev->glob->bo_count);
atomic_inc(&ttm_bo_glob.bo_count);
/*
* For ttm_bo_type_device buffers, allocate
@@ -1353,9 +1350,9 @@ int ttm_bo_init_reserved(struct ttm_bo_device *bdev,
return ret;
}
spin_lock(&bdev->glob->lru_lock);
spin_lock(&ttm_bo_glob.lru_lock);
ttm_bo_move_to_lru_tail(bo, NULL);
spin_unlock(&bdev->glob->lru_lock);
spin_unlock(&ttm_bo_glob.lru_lock);
return ret;
}
@@ -1453,7 +1450,7 @@ static int ttm_bo_force_list_clean(struct ttm_bo_device *bdev,
.flags = TTM_OPT_FLAG_FORCE_ALLOC
};
struct ttm_mem_type_manager *man = &bdev->man[mem_type];
struct ttm_bo_global *glob = bdev->glob;
struct ttm_bo_global *glob = &ttm_bo_glob;
struct dma_fence *fence;
int ret;
unsigned i;
@@ -1622,8 +1619,6 @@ static int ttm_bo_global_init(void)
goto out;
spin_lock_init(&glob->lru_lock);
glob->mem_glob = &ttm_mem_glob;
glob->mem_glob->bo_glob = glob;
glob->dummy_read_page = alloc_page(__GFP_ZERO | GFP_DMA32);
if (unlikely(glob->dummy_read_page == NULL)) {
@@ -1647,10 +1642,10 @@ out:
int ttm_bo_device_release(struct ttm_bo_device *bdev)
{
struct ttm_bo_global *glob = &ttm_bo_glob;
int ret = 0;
unsigned i = TTM_NUM_MEM_TYPES;
struct ttm_mem_type_manager *man;
struct ttm_bo_global *glob = bdev->glob;
while (i--) {
man = &bdev->man[i];
@@ -1719,7 +1714,6 @@ int ttm_bo_device_init(struct ttm_bo_device *bdev,
INIT_DELAYED_WORK(&bdev->wq, ttm_bo_delayed_workqueue);
INIT_LIST_HEAD(&bdev->ddestroy);
bdev->dev_mapping = mapping;
bdev->glob = glob;
bdev->need_dma32 = need_dma32;
mutex_lock(&ttm_global_mutex);
list_add_tail(&bdev->device_list, &glob->device_list);
@@ -1898,8 +1892,7 @@ void ttm_bo_swapout_all(struct ttm_bo_device *bdev)
.no_wait_gpu = false
};
while (ttm_bo_swapout(bdev->glob, &ctx) == 0)
;
while (ttm_bo_swapout(&ttm_bo_glob, &ctx) == 0);
}
EXPORT_SYMBOL(ttm_bo_swapout_all);