From 9d77db3c730780c8ef5ccd4b66403ff5675cfe4e Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 13 May 2024 10:30:14 +0000
Subject: [PATCH] modify sin led gpio

---
 kernel/drivers/gpu/drm/msm/msm_ringbuffer.h |    7 ++++++-
 1 files changed, 6 insertions(+), 1 deletions(-)

diff --git a/kernel/drivers/gpu/drm/msm/msm_ringbuffer.h b/kernel/drivers/gpu/drm/msm/msm_ringbuffer.h
index 0987d6b..4956d1b 100644
--- a/kernel/drivers/gpu/drm/msm/msm_ringbuffer.h
+++ b/kernel/drivers/gpu/drm/msm/msm_ringbuffer.h
@@ -46,7 +46,12 @@
 	struct msm_rbmemptrs *memptrs;
 	uint64_t memptrs_iova;
 	struct msm_fence_context *fctx;
-	spinlock_t lock;
+
+	/*
+	 * preempt_lock protects preemption and serializes wptr updates against
+	 * preemption.  Can be aquired from irq context.
+	 */
+	spinlock_t preempt_lock;
 };
 
 struct msm_ringbuffer *msm_ringbuffer_new(struct msm_gpu *gpu, int id,

--
Gitblit v1.6.2