Add 'qcom/opensource/graphics-kernel/' from commit 'b4fdc4c04295ac59109ae19d64747522740c3f14'

git-subtree-dir: qcom/opensource/graphics-kernel
git-subtree-mainline: 992813d9c1
git-subtree-split: b4fdc4c042
Change-Id:
repo: https://git.codelinaro.org/clo/la/platform/vendor/qcom/opensource/graphics-kernel
tag: GRAPHICS.LA.14.0.r1-07700-lanai.0

qcom/opensource/graphics-kernel/kgsl_sync.h

@@ -0,0 +1,208 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2012-2014,2018-2019, 2021, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2022-2023, Qualcomm Innovation Center, Inc. All rights reserved.
+ */
+#ifndef __KGSL_SYNC_H
+#define __KGSL_SYNC_H
+
+#include <linux/dma-fence.h>
+
+/**
+ * struct kgsl_sync_timeline - A sync timeline associated with a kgsl context
+ * @kref: Refcount to keep the struct alive until all its fences are signaled,
+	  and as long as the context exists
+ * @name: String to describe this timeline
+ * @fence_context: Used by the fence driver to identify fences belonging to
+ *		   this context
+ * @child_list_head: List head for all fences on this timeline
+ * @lock: Spinlock to protect this timeline
+ * @last_timestamp: Last timestamp when signaling fences
+ * @device: kgsl device
+ * @context: kgsl context
+ */
+struct kgsl_sync_timeline {
+	struct kref kref;
+	char name[32];
+
+	u64 fence_context;
+
+	struct list_head child_list_head;
+
+	spinlock_t lock;
+	unsigned int last_timestamp;
+	struct kgsl_device *device;
+	struct kgsl_context *context;
+};
+
+/**
+ * struct kgsl_sync_fence - A struct containing a fence and other data
+ *				associated with it
+ * @fence: The fence struct
+ * @sync_file: Pointer to the sync file
+ * @parent: Pointer to the kgsl sync timeline this fence is on
+ * @child_list: List of fences on the same timeline
+ * @context_id: kgsl context id
+ * @timestamp: Context timestamp that this fence is associated with
+ */
+struct kgsl_sync_fence {
+	struct dma_fence fence;
+	struct sync_file *sync_file;
+	struct kgsl_sync_timeline *parent;
+	struct list_head child_list;
+	u32 context_id;
+	unsigned int timestamp;
+	/** @hw_fence_index: Index of hw fence in hw fence table */
+	u64 hw_fence_index;
+	/** @hw_fence_handle: Handle to the hw fence client */
+	void *hw_fence_handle;
+};
+
+/**
+ * struct kgsl_sync_fence_cb - Used for fence callbacks
+ * fence_cb: Fence callback struct
+ * fence: Pointer to the fence for which the callback is done
+ * priv: Private data for the callback
+ * func: Pointer to the kgsl function to call. This function should return
+ * false if the sync callback is marked for cancellation in a separate thread.
+ */
+struct kgsl_sync_fence_cb {
+	struct dma_fence_cb fence_cb;
+	struct dma_fence *fence;
+	void *priv;
+	bool (*func)(void *priv);
+};
+
+struct kgsl_device_private;
+struct kgsl_drawobj_sync_event;
+struct event_fence_info;
+struct kgsl_process_private;
+struct kgsl_syncsource;
+
+#if defined(CONFIG_SYNC_FILE)
+int kgsl_add_fence_event(struct kgsl_device *device,
+	u32 context_id, u32 timestamp, void __user *data, int len,
+	struct kgsl_device_private *owner);
+
+int kgsl_sync_timeline_create(struct kgsl_context *context);
+
+void kgsl_sync_timeline_detach(struct kgsl_sync_timeline *ktimeline);
+
+void kgsl_sync_timeline_put(struct kgsl_sync_timeline *ktimeline);
+
+struct kgsl_sync_fence_cb *kgsl_sync_fence_async_wait(int fd, bool (*func)(void *priv), void *priv);
+
+void kgsl_get_fence_info(struct kgsl_drawobj_sync_event *event);
+
+void kgsl_sync_fence_async_cancel(struct kgsl_sync_fence_cb *kcb);
+
+long kgsl_ioctl_syncsource_create(struct kgsl_device_private *dev_priv,
+					unsigned int cmd, void *data);
+long kgsl_ioctl_syncsource_destroy(struct kgsl_device_private *dev_priv,
+					unsigned int cmd, void *data);
+long kgsl_ioctl_syncsource_create_fence(struct kgsl_device_private *dev_priv,
+					unsigned int cmd, void *data);
+long kgsl_ioctl_syncsource_signal_fence(struct kgsl_device_private *dev_priv,
+					unsigned int cmd, void *data);
+
+void kgsl_syncsource_put(struct kgsl_syncsource *syncsource);
+
+void kgsl_syncsource_process_release_syncsources(
+		struct kgsl_process_private *private);
+
+bool is_kgsl_fence(struct dma_fence *f);
+
+void kgsl_sync_timeline_signal(struct kgsl_sync_timeline *ktimeline,
+		u32 timestamp);
+
+#else
+static inline int kgsl_add_fence_event(struct kgsl_device *device,
+	u32 context_id, u32 timestamp, void __user *data, int len,
+	struct kgsl_device_private *owner)
+{
+	return -EINVAL;
+}
+
+static inline int kgsl_sync_timeline_create(struct kgsl_context *context)
+{
+	context->ktimeline = NULL;
+	return 0;
+}
+
+static inline void kgsl_sync_timeline_detach(struct kgsl_sync_timeline *ktimeline)
+{
+}
+
+static inline void kgsl_sync_timeline_put(struct kgsl_sync_timeline *ktimeline)
+{
+}
+
+
+static inline void kgsl_get_fence_info(struct kgsl_drawobj_sync_event *event)
+{
+}
+
+static inline struct kgsl_sync_fence_cb *kgsl_sync_fence_async_wait(int fd,
+	bool (*func)(void *priv), void *priv);
+{
+	return NULL;
+}
+
+static inline void
+kgsl_sync_fence_async_cancel(struct kgsl_sync_fence_cb *kcb)
+{
+}
+
+static inline long
+kgsl_ioctl_syncsource_create(struct kgsl_device_private *dev_priv,
+					unsigned int cmd, void *data)
+{
+	return -ENOIOCTLCMD;
+}
+
+static inline long
+kgsl_ioctl_syncsource_destroy(struct kgsl_device_private *dev_priv,
+					unsigned int cmd, void *data)
+{
+	return -ENOIOCTLCMD;
+}
+
+static inline long
+kgsl_ioctl_syncsource_create_fence(struct kgsl_device_private *dev_priv,
+					unsigned int cmd, void *data)
+{
+	return -ENOIOCTLCMD;
+}
+
+static inline long
+kgsl_ioctl_syncsource_signal_fence(struct kgsl_device_private *dev_priv,
+					unsigned int cmd, void *data)
+{
+	return -ENOIOCTLCMD;
+}
+
+static inline void kgsl_syncsource_put(struct kgsl_syncsource *syncsource)
+{
+
+}
+
+static inline void kgsl_syncsource_process_release_syncsources(
+		struct kgsl_process_private *private)
+{
+
+}
+
+bool is_kgsl_fence(struct dma_fence *f)
+{
+
+}
+
+void kgsl_sync_timeline_signal(struct kgsl_sync_timeline *ktimeline,
+		u32 timestamp)
+{
+
+}
+
+#endif /* CONFIG_SYNC_FILE */
+
+#endif /* __KGSL_SYNC_H */