git.openwrt.org Git - openwrt/staging/xback.git/blob

   1 From 9e2b5f6b8d74b18c96521c3e9ddd3f7fc75d917f Mon Sep 17 00:00:00 2001
   2 From: Maxime Ripard <maxime@cerno.tech>
   3 Date: Wed, 25 Jan 2023 12:54:36 +0100
   4 Subject: [PATCH 0032/1085] drm/vc4: hvs: Move the dlist allocation destruction
   5  to a function
   6
   7 We'll need to destroy a dlist allocation in multiple code paths, so
   8 let's move it to a separate function.
   9
  10 Signed-off-by: Maxime Ripard <maxime@cerno.tech>
  11 ---
  12  drivers/gpu/drm/vc4/vc4_hvs.c | 16 +++++++++++++---
  13  1 file changed, 13 insertions(+), 3 deletions(-)
  14
  15 --- a/drivers/gpu/drm/vc4/vc4_hvs.c
  16 +++ b/drivers/gpu/drm/vc4/vc4_hvs.c
  17 @@ -466,6 +466,18 @@ vc4_hvs_alloc_dlist_entry(struct vc4_hvs
  18         return alloc;
  19  }
  20
  21 +static void vc4_hvs_free_dlist_entry_locked(struct vc4_hvs *hvs,
  22 +                                           struct vc4_hvs_dlist_allocation *alloc)
  23 +{
  24 +       lockdep_assert_held(&hvs->mm_lock);
  25 +
  26 +       if (!list_empty(&alloc->node))
  27 +               list_del(&alloc->node);
  28 +
  29 +       drm_mm_remove_node(&alloc->mm_node);
  30 +       kfree(alloc);
  31 +}
  32 +
  33  void vc4_hvs_mark_dlist_entry_stale(struct vc4_hvs *hvs,
  34                                     struct vc4_hvs_dlist_allocation *alloc)
  35  {
  36 @@ -553,9 +565,7 @@ static void vc4_hvs_dlist_free_work(stru
  37                 if (!vc4_hvs_frcnt_lte(cur->target_frame_count, frcnt))
  38                         continue;
  39
  40 -               list_del(&cur->node);
  41 -               drm_mm_remove_node(&cur->mm_node);
  42 -               kfree(cur);
  43 +               vc4_hvs_free_dlist_entry_locked(hvs, cur);
  44         }
  45         spin_unlock_irqrestore(&hvs->mm_lock, flags);
  46  }