lkml.org 
[lkml]   [2021]   [Jul]   [26]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
Subject[PATCH] tracing/gpu: Add gpu_mem_imported tracepoint
From
The existing gpu_mem_total tracepoint allows GPU drivers a unifrom way
to report the per-process and system-wide GPU memory usage. This
tracepoint reports a single total of the GPU private allocations and the
imported memory. [1]

To allow distinguishing GPU private vs imported memory, add
gpu_mem_imported tracepoint.

GPU drivers can use this tracepoint to report the per-process and global
GPU-imported memory in a uniform way.

For backward compatility with already existing implementations of
gpu_mem_total by various Android GPU drivers, this is proposed as a new
tracepoint rather than additional args to gpu_mem_total.

[1] https://lore.kernel.org/r/20200302234840.57188-1-zzyiwei@google.com/

Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
---
include/trace/events/gpu_mem.h | 51 ++++++++++++++++++++++++----------
1 file changed, 36 insertions(+), 15 deletions(-)

diff --git a/include/trace/events/gpu_mem.h b/include/trace/events/gpu_mem.h
index 26d871f96e94..b9543abf1461 100644
--- a/include/trace/events/gpu_mem.h
+++ b/include/trace/events/gpu_mem.h
@@ -13,21 +13,7 @@

#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,
+DECLARE_EVENT_CLASS(gpu_mem_template,

TP_PROTO(uint32_t gpu_id, uint32_t pid, uint64_t size),

@@ -51,6 +37,41 @@ TRACE_EVENT(gpu_mem_total,
__entry->size)
);

+/*
+ * 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.
+ *
+ */
+DEFINE_EVENT(gpu_mem_template, gpu_mem_total,
+ TP_PROTO(uint32_t gpu_id, uint32_t pid, uint64_t size),
+ TP_ARGS(gpu_id, pid, size));
+
+/*
+ * The gpu_mem_imported event indicates that there's an update to the
+ * global or process imported gpu memory counters.
+ *
+ * This event should be emitted whenever the kernel device driver imports
+ * or unimports memory (allocated externally) 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 imported memory in bytes.
+ */
+DEFINE_EVENT(gpu_mem_template, gpu_mem_imported,
+ TP_PROTO(uint32_t gpu_id, uint32_t pid, uint64_t size),
+ TP_ARGS(gpu_id, pid, size));
+
#endif /* _TRACE_GPU_MEM_H */

/* This part must be outside protection */
base-commit: ff1176468d368232b684f75e82563369208bc371
--
2.32.0.432.gabb21c7263-goog

\
 
 \ /
  Last update: 2021-07-26 18:48    [W:0.885 / U:0.084 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site