linux/include/trace/events/gpu_mem.h
Yiwei Zhang 386c82a703 gpu/trace: Minor comment updates for gpu_mem_total tracepoint
This change updates the improper comment for the 'size' attribute in the
tracepoint definition. Most gfx drivers pre-fault in physical pages
instead of making virtual allocations. So we drop the 'Virtual' keyword
here and leave this to the implementations.

Link: http://lkml.kernel.org/r/20200428220825.169606-1-zzyiwei@google.com

Signed-off-by: Yiwei Zhang <zzyiwei@google.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2020-05-07 13:32:57 -04:00

58 lines
1.2 KiB
C

/* SPDX-License-Identifier: GPL-2.0 */
/*
* GPU memory trace points
*
* Copyright (C) 2020 Google, Inc.
*/
#undef TRACE_SYSTEM
#define TRACE_SYSTEM gpu_mem
#if !defined(_TRACE_GPU_MEM_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_GPU_MEM_H
#include <linux/tracepoint.h>
/*
* The gpu_memory_total event indicates that there's an update to either the
* global or process total gpu memory counters.
*
* This event should be emitted whenever the kernel device driver allocates,
* frees, imports, unimports memory in the GPU addressable space.
*
* @gpu_id: This is the gpu id.
*
* @pid: Put 0 for global total, while positive pid for process total.
*
* @size: Size of the allocation in bytes.
*
*/
TRACE_EVENT(gpu_mem_total,
TP_PROTO(uint32_t gpu_id, uint32_t pid, uint64_t size),
TP_ARGS(gpu_id, pid, size),
TP_STRUCT__entry(
__field(uint32_t, gpu_id)
__field(uint32_t, pid)
__field(uint64_t, size)
),
TP_fast_assign(
__entry->gpu_id = gpu_id;
__entry->pid = pid;
__entry->size = size;
),
TP_printk("gpu_id=%u pid=%u size=%llu",
__entry->gpu_id,
__entry->pid,
__entry->size)
);
#endif /* _TRACE_GPU_MEM_H */
/* This part must be outside protection */
#include <trace/define_trace.h>