openwrt/target/linux/bcm27xx/patches-6.1/950-0552-drm-vc4-hvs-Move-the-dlist-allocation-destruction-to.patch
Álvaro Fernández Rojas 793f8ab62c bcm27xx: 6.1: add kernel patches
Add kernel patches for version 6.1.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2023-06-09 19:12:30 +02:00

47 lines
1.3 KiB
Diff

From 718d920a2dfd680811bdf987706b50a6e23f0527 Mon Sep 17 00:00:00 2001
From: Maxime Ripard <maxime@cerno.tech>
Date: Wed, 25 Jan 2023 12:54:36 +0100
Subject: [PATCH] drm/vc4: hvs: Move the dlist allocation destruction
to a function
We'll need to destroy a dlist allocation in multiple code paths, so
let's move it to a separate function.
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
---
drivers/gpu/drm/vc4/vc4_hvs.c | 16 +++++++++++++---
1 file changed, 13 insertions(+), 3 deletions(-)
--- a/drivers/gpu/drm/vc4/vc4_hvs.c
+++ b/drivers/gpu/drm/vc4/vc4_hvs.c
@@ -466,6 +466,18 @@ vc4_hvs_alloc_dlist_entry(struct vc4_hvs
return alloc;
}
+static void vc4_hvs_free_dlist_entry_locked(struct vc4_hvs *hvs,
+ struct vc4_hvs_dlist_allocation *alloc)
+{
+ lockdep_assert_held(&hvs->mm_lock);
+
+ if (!list_empty(&alloc->node))
+ list_del(&alloc->node);
+
+ drm_mm_remove_node(&alloc->mm_node);
+ kfree(alloc);
+}
+
void vc4_hvs_mark_dlist_entry_stale(struct vc4_hvs *hvs,
struct vc4_hvs_dlist_allocation *alloc)
{
@@ -553,9 +565,7 @@ static void vc4_hvs_dlist_free_work(stru
if (!vc4_hvs_frcnt_lte(cur->target_frame_count, frcnt))
continue;
- list_del(&cur->node);
- drm_mm_remove_node(&cur->mm_node);
- kfree(cur);
+ vc4_hvs_free_dlist_entry_locked(hvs, cur);
}
spin_unlock_irqrestore(&hvs->mm_lock, flags);
}