drm/ttm: call ttm_bo_swapout directly when ttm shrink
remove the extra indirection because we have only one implementation anyway
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Roger He <Hongbo.He@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
index 84dfa23..f2cfa93 100644
--- a/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/drivers/gpu/drm/ttm/ttm_bo.c
@@ -42,7 +42,6 @@
#include <linux/atomic.h>
#include <linux/reservation.h>
-static int ttm_bo_swapout(struct ttm_mem_shrink *shrink);
static void ttm_bo_global_kobj_release(struct kobject *kobj);
static struct attribute ttm_bo_count = {
@@ -1456,7 +1455,6 @@ static void ttm_bo_global_kobj_release(struct kobject *kobj)
struct ttm_bo_global *glob =
container_of(kobj, struct ttm_bo_global, kobj);
- ttm_mem_unregister_shrink(glob->mem_glob, &glob->shrink);
__free_page(glob->dummy_read_page);
kfree(glob);
}
@@ -1481,6 +1479,7 @@ int ttm_bo_global_init(struct drm_global_reference *ref)
mutex_init(&glob->device_list_mutex);
spin_lock_init(&glob->lru_lock);
glob->mem_glob = bo_ref->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)) {
@@ -1491,14 +1490,6 @@ int ttm_bo_global_init(struct drm_global_reference *ref)
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);
- ret = ttm_mem_register_shrink(glob->mem_glob, &glob->shrink);
- if (unlikely(ret != 0)) {
- pr_err("Could not register buffer object swapout\n");
- goto out_no_shrink;
- }
-
atomic_set(&glob->bo_count, 0);
ret = kobject_init_and_add(
@@ -1506,8 +1497,6 @@ int ttm_bo_global_init(struct drm_global_reference *ref)
if (unlikely(ret != 0))
kobject_put(&glob->kobj);
return ret;
-out_no_shrink:
- __free_page(glob->dummy_read_page);
out_no_drp:
kfree(glob);
return ret;
@@ -1690,11 +1679,8 @@ EXPORT_SYMBOL(ttm_bo_synccpu_write_release);
* A buffer object shrink method that tries to swap out the first
* buffer object on the bo_global::swap_lru list.
*/
-
-static int ttm_bo_swapout(struct ttm_mem_shrink *shrink)
+int ttm_bo_swapout(struct ttm_bo_global *glob)
{
- struct ttm_bo_global *glob =
- container_of(shrink, struct ttm_bo_global, shrink);
struct ttm_buffer_object *bo;
int ret = -EBUSY;
unsigned i;
@@ -1776,10 +1762,11 @@ static int ttm_bo_swapout(struct ttm_mem_shrink *shrink)
kref_put(&bo->list_kref, ttm_bo_release_list);
return ret;
}
+EXPORT_SYMBOL(ttm_bo_swapout);
void ttm_bo_swapout_all(struct ttm_bo_device *bdev)
{
- while (ttm_bo_swapout(&bdev->glob->shrink) == 0)
+ while (ttm_bo_swapout(bdev->glob) == 0)
;
}
EXPORT_SYMBOL(ttm_bo_swapout_all);
diff --git a/drivers/gpu/drm/ttm/ttm_memory.c b/drivers/gpu/drm/ttm/ttm_memory.c
index e963749..9130bdf 100644
--- a/drivers/gpu/drm/ttm/ttm_memory.c
+++ b/drivers/gpu/drm/ttm/ttm_memory.c
@@ -214,26 +214,20 @@ static void ttm_shrink(struct ttm_mem_global *glob, bool from_wq,
uint64_t extra)
{
int ret;
- struct ttm_mem_shrink *shrink;
spin_lock(&glob->lock);
- if (glob->shrink == NULL)
- goto out;
while (ttm_zones_above_swap_target(glob, from_wq, extra)) {
- shrink = glob->shrink;
spin_unlock(&glob->lock);
- ret = shrink->do_shrink(shrink);
+ ret = ttm_bo_swapout(glob->bo_glob);
spin_lock(&glob->lock);
if (unlikely(ret != 0))
- goto out;
+ break;
}
-out:
+
spin_unlock(&glob->lock);
}
-
-
static void ttm_shrink_work(struct work_struct *work)
{
struct ttm_mem_global *glob =