Merge drm/drm-fixes into drm-misc-fixes

Start this new release drm-misc-fixes branch

Signed-off-by: Maxime Ripard <maxime@cerno.tech>

1 files changed, 22 insertions, 7 deletions

diff --git a/drivers/gpu/drm/msm/msm_drv.h b/drivers/gpu/drm/msm/msm_drv.h
index 591c47a654e8..2668941df529 100644
--- a/drivers/gpu/drm/msm/msm_drv.h
+++ b/drivers/gpu/drm/msm/msm_drv.h
@@ -174,20 +174,35 @@ struct msm_drm_private {
 	struct msm_rd_state *hangrd;   /* debugfs to dump hanging submits */
 	struct msm_perf_state *perf;
 
-	/*
-	 * Lists of inactive GEM objects.  Every bo is either in one of the
+	/**
+	 * List of all GEM objects (mainly for debugfs, protected by obj_lock
+	 * (acquire before per GEM object lock)
+	 */
+	struct list_head objects;
+	struct mutex obj_lock;
+
+	/**
+	 * LRUs of inactive GEM objects.  Every bo is either in one of the
 	 * inactive lists (depending on whether or not it is shrinkable) or
-	 * gpu->active_list (for the gpu it is active on[1])
+	 * gpu->active_list (for the gpu it is active on[1]), or transiently
+	 * on a temporary list as the shrinker is running.
+	 *
+	 * Note that inactive_willneed also contains pinned and vmap'd bos,
+	 * but the number of pinned-but-not-active objects is small (scanout
+	 * buffers, ringbuffer, etc).
 	 *
-	 * These lists are protected by mm_lock.  If struct_mutex is involved, it
-	 * should be aquired prior to mm_lock.  One should *not* hold mm_lock in
+	 * These lists are protected by mm_lock (which should be acquired
+	 * before per GEM object lock).  One should *not* hold mm_lock in
 	 * get_pages()/vmap()/etc paths, as they can trigger the shrinker.
 	 *
 	 * [1] if someone ever added support for the old 2d cores, there could be
 	 *     more than one gpu object
 	 */
-	struct list_head inactive_willneed;  /* inactive + !shrinkable */
-	struct list_head inactive_dontneed;  /* inactive +  shrinkable */
+	struct list_head inactive_willneed;  /* inactive + potentially unpin/evictable */
+	struct list_head inactive_dontneed;  /* inactive + shrinkable */
+	struct list_head inactive_unpinned;  /* inactive + purged or unpinned */
+	long shrinkable_count;               /* write access under mm_lock */
+	long evictable_count;                /* write access under mm_lock */
 	struct mutex mm_lock;
 
 	struct workqueue_struct *wq;