116 lines
3.1 KiB
C
116 lines
3.1 KiB
C
// SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd
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//
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// SPDX-License-Identifier: LGPL-2.1
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#ifndef __GRAPHICS_SNOOP_H
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#define __GRAPHICS_SNOOP_H
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#define TASK_COMM_LEN 16
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#define DRM_DEVICE_NAME_LEN 32
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#define FENCE_CONTEXT_NAME_LEN 32
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/* 图形事件类型枚举 */
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enum graphics_event_type
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{
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GRAPHICS_VBLANK_EVENT = 1, /* DRM垂直同步事件 */
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GRAPHICS_VBLANK_QUEUED = 2, /* DRM垂直同步队列事件 */
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GRAPHICS_FENCE_INIT = 3, /* DMA围栏初始化 */
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GRAPHICS_FENCE_DESTROY = 4, /* DMA围栏销毁 */
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GRAPHICS_FENCE_ENABLE = 5, /* DMA围栏信号启用 */
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GRAPHICS_FENCE_SIGNALED = 6, /* DMA围栏信号完成 */
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};
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/* 通用事件头部（参考sched-snoop设计） */
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struct graphics_event_header
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{
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__u64 timestamp;
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__u32 event_type;
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__u32 cpu;
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__u32 pid;
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__u32 tid;
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char comm[TASK_COMM_LEN];
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};
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/* DRM垂直同步事件数据 */
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struct drm_vblank_data
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{
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__u32 crtc_id; /* CRTC ID */
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__u32 sequence; /* 序列号 */
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__u64 timestamp_ns; /* 硬件时间戳 */
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char device_name[DRM_DEVICE_NAME_LEN];
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};
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/* DMA围栏事件数据 */
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struct dma_fence_data
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{
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__u64 fence_ptr; /* 围栏对象指针 */
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__u64 context; /* 围栏上下文 */
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__u32 seqno; /* 序列号 */
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__s32 error; /* 错误代码 */
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char driver_name[DRM_DEVICE_NAME_LEN];
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char timeline_name[FENCE_CONTEXT_NAME_LEN];
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};
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/* 主事件结构体（使用union优化内存，参考sched-snoop） */
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struct graphics_event
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{
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struct graphics_event_header header;
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union
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{
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struct drm_vblank_data vblank;
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struct dma_fence_data fence;
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} data;
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};
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/* 过滤规则结构体（参考irqsnoop设计） */
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struct graphics_filter
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{
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__u32 target_pid; /* 0表示无过滤 */
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__u32 target_cpu; /* -1表示无过滤 */
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char target_comm[TASK_COMM_LEN]; /* 空表示无过滤 */
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__u32 event_mask; /* 事件类型位掩码 */
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__u32 crtc_filter; /* CRTC过滤 */
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__u64 fence_context_filter; /* 围栏上下文过滤 */
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bool filter_errors_only; /* 仅显示错误事件 */
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};
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/* 统计信息结构体（参考bio-stat设计） */
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struct graphics_stats
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{
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__u64 total_events;
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__u64 vblank_events;
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__u64 fence_events;
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__u64 error_events;
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/* DRM统计 */
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__u64 total_vblanks;
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__u64 missed_vblanks;
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__u32 active_crtcs;
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/* DMA围栏统计 */
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__u64 fence_created;
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__u64 fence_destroyed;
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__u64 fence_signaled;
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__u64 fence_timeouts;
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/* 性能统计 */
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__u64 min_vblank_interval;
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__u64 max_vblank_interval;
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__u64 avg_fence_latency;
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};
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/* 事件类型掩码定义 */
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#define GRAPHICS_EVENT_VBLANK_MASK (1 << (GRAPHICS_VBLANK_EVENT - 1))
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#define GRAPHICS_EVENT_VBLANK_Q_MASK (1 << (GRAPHICS_VBLANK_QUEUED - 1))
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#define GRAPHICS_EVENT_FENCE_INIT_MASK (1 << (GRAPHICS_FENCE_INIT - 1))
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#define GRAPHICS_EVENT_FENCE_DEST_MASK (1 << (GRAPHICS_FENCE_DESTROY - 1))
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#define GRAPHICS_EVENT_FENCE_EN_MASK (1 << (GRAPHICS_FENCE_ENABLE - 1))
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#define GRAPHICS_EVENT_FENCE_SIG_MASK (1 << (GRAPHICS_FENCE_SIGNALED - 1))
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#define GRAPHICS_EVENT_ALL_MASK 0x3F
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/* 错误代码定义 */
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#define GRAPHICS_NO_ERROR 0
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#define GRAPHICS_FENCE_TIMEOUT -ETIMEDOUT
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#define GRAPHICS_FENCE_CANCELLED -ECANCELED
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#endif /* __GRAPHICS_SNOOP_H */ |