1 files changed, 20 insertions, 14 deletions

diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c
index f8fd31e709bb..535a0263ceeb 100644
--- a/drivers/gpu/drm/msm/msm_drv.c
+++ b/drivers/gpu/drm/msm/msm_drv.c
@@ -7,6 +7,7 @@
 
 #include <linux/dma-mapping.h>
 #include <linux/kthread.h>
+#include <linux/sched/mm.h>
 #include <linux/uaccess.h>
 #include <uapi/linux/sched/types.h>
 
@@ -120,8 +121,8 @@ struct clk *msm_clk_get(struct platform_device *pdev, const char *name)
 	return clk;
 }
 
-void __iomem *_msm_ioremap(struct platform_device *pdev, const char *name,
-			   const char *dbgname, bool quiet)
+static void __iomem *_msm_ioremap(struct platform_device *pdev, const char *name,
+				  const char *dbgname, bool quiet)
 {
 	struct resource *res;
 	unsigned long size;
@@ -180,6 +181,14 @@ u32 msm_readl(const void __iomem *addr)
 	return val;
 }
 
+void msm_rmw(void __iomem *addr, u32 mask, u32 or)
+{
+	u32 val = msm_readl(addr);
+
+	val &= ~mask;
+	msm_writel(val | or, addr);
+}
+
 struct msm_vblank_work {
 	struct work_struct work;
 	int crtc_id;
@@ -437,10 +446,14 @@ static int msm_drm_init(struct device *dev, const struct drm_driver *drv)
 
 	priv->wq = alloc_ordered_workqueue("msm", 0);
 
-	INIT_WORK(&priv->free_work, msm_gem_free_work);
-	init_llist_head(&priv->free_list);
+	INIT_LIST_HEAD(&priv->inactive_willneed);
+	INIT_LIST_HEAD(&priv->inactive_dontneed);
+	mutex_init(&priv->mm_lock);
 
-	INIT_LIST_HEAD(&priv->inactive_list);
+	/* Teach lockdep about lock ordering wrt. shrinker: */
+	fs_reclaim_acquire(GFP_KERNEL);
+	might_lock(&priv->mm_lock);
+	fs_reclaim_release(GFP_KERNEL);
 
 	drm_mode_config_init(ddev);
 
@@ -908,14 +921,9 @@ static int msm_ioctl_gem_madvise(struct drm_device *dev, void *data,
 		return -EINVAL;
 	}
 
-	ret = mutex_lock_interruptible(&dev->struct_mutex);
-	if (ret)
-		return ret;
-
 	obj = drm_gem_object_lookup(file, args->handle);
 	if (!obj) {
-		ret = -ENOENT;
-		goto unlock;
+		return -ENOENT;
 	}
 
 	ret = msm_gem_madvise(obj, args->madv);
@@ -924,10 +932,8 @@ static int msm_ioctl_gem_madvise(struct drm_device *dev, void *data,
 		ret = 0;
 	}
 
-	drm_gem_object_put_locked(obj);
+	drm_gem_object_put(obj);
 
-unlock:
-	mutex_unlock(&dev->struct_mutex);
 	return ret;
 }