diff options
| author | Christian König <christian.koenig@amd.com> | 2021-04-09 15:00:10 +0200 |
|---|---|---|
| committer | Christian König <christian.koenig@amd.com> | 2021-04-12 13:43:25 +0200 |
| commit | b057f37bb24f9c4f833549ce48a0d2d6fccba2c4 (patch) | |
| tree | 3ab3412def1a8c9e666c37c9814c9000384dd897 /drivers/gpu/drm/ttm/ttm_tt.c | |
| parent | a28e10ed99bcf57cbd55a6146367f7ea752af6be (diff) | |
drm/ttm: re-add debugfs tt_shrink file
That got lost when we moved back to a static limit.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210409130113.1459-2-christian.koenig@amd.com
Diffstat (limited to 'drivers/gpu/drm/ttm/ttm_tt.c')
| -rw-r--r-- | drivers/gpu/drm/ttm/ttm_tt.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/gpu/drm/ttm/ttm_tt.c b/drivers/gpu/drm/ttm/ttm_tt.c index 7d479095dcf8..4d8498a3d642 100644 --- a/drivers/gpu/drm/ttm/ttm_tt.c +++ b/drivers/gpu/drm/ttm/ttm_tt.c @@ -389,6 +389,21 @@ void ttm_tt_unpopulate(struct ttm_device *bdev, struct ttm_tt *ttm) ttm->page_flags &= ~TTM_PAGE_FLAG_PRIV_POPULATED; } +#ifdef CONFIG_DEBUG_FS + +/* Test the shrinker functions and dump the result */ +static int ttm_tt_debugfs_shrink_show(struct seq_file *m, void *data) +{ + struct ttm_operation_ctx ctx = { false, false }; + + seq_printf(m, "%d\n", ttm_global_swapout(&ctx, GFP_KERNEL)); + return 0; +} +DEFINE_SHOW_ATTRIBUTE(ttm_tt_debugfs_shrink); + +#endif + + /** * ttm_tt_mgr_init - register with the MM shrinker * @@ -396,6 +411,11 @@ void ttm_tt_unpopulate(struct ttm_device *bdev, struct ttm_tt *ttm) */ void ttm_tt_mgr_init(unsigned long num_pages, unsigned long num_dma32_pages) { +#ifdef CONFIG_DEBUG_FS + debugfs_create_file("tt_shrink", 0400, ttm_debugfs_root, NULL, + &ttm_tt_debugfs_shrink_fops); +#endif + if (!ttm_pages_limit) ttm_pages_limit = num_pages; |