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authorChia-I Wu2019-04-29 15:08:25 -0700
committerGerd Hoffmann2019-05-06 10:52:58 +0200
commit5daf8857c9909903348a1559586be8a09564089e (patch)
treef0745c98460b9933e447a139a1a6daa3bc1ecca9
parent48ad7751dbd1facd5500c4718698aec550aaea6e (diff)
drm/virtio: add trace events for commands
Trace when commands are queued for both ctrlq and cursorq. Trace when responses are received for ctrlq. Signed-off-by: Chia-I Wu <olvaffe@gmail.com> Link: http://patchwork.freedesktop.org/patch/msgid/20190429220825.156644-3-olvaffe@gmail.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
-rw-r--r--drivers/gpu/drm/virtio/Makefile2
-rw-r--r--drivers/gpu/drm/virtio/virtgpu_trace.h52
-rw-r--r--drivers/gpu/drm/virtio/virtgpu_trace_points.c5
-rw-r--r--drivers/gpu/drm/virtio/virtgpu_vq.c10
4 files changed, 68 insertions, 1 deletions
diff --git a/drivers/gpu/drm/virtio/Makefile b/drivers/gpu/drm/virtio/Makefile
index 4e90cc8fa651..42949a17ff70 100644
--- a/drivers/gpu/drm/virtio/Makefile
+++ b/drivers/gpu/drm/virtio/Makefile
@@ -6,6 +6,6 @@
virtio-gpu-y := virtgpu_drv.o virtgpu_kms.o virtgpu_gem.o \
virtgpu_fb.o virtgpu_display.o virtgpu_vq.o virtgpu_ttm.o \
virtgpu_fence.o virtgpu_object.o virtgpu_debugfs.o virtgpu_plane.o \
- virtgpu_ioctl.o virtgpu_prime.o
+ virtgpu_ioctl.o virtgpu_prime.o virtgpu_trace_points.o
obj-$(CONFIG_DRM_VIRTIO_GPU) += virtio-gpu.o
diff --git a/drivers/gpu/drm/virtio/virtgpu_trace.h b/drivers/gpu/drm/virtio/virtgpu_trace.h
new file mode 100644
index 000000000000..711ecc2bd241
--- /dev/null
+++ b/drivers/gpu/drm/virtio/virtgpu_trace.h
@@ -0,0 +1,52 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#if !defined(_VIRTGPU_TRACE_H_) || defined(TRACE_HEADER_MULTI_READ)
+#define _VIRTGPU_TRACE_H_
+
+#include <linux/tracepoint.h>
+
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM virtio_gpu
+#define TRACE_INCLUDE_FILE virtgpu_trace
+
+DECLARE_EVENT_CLASS(virtio_gpu_cmd,
+ TP_PROTO(struct virtqueue *vq, struct virtio_gpu_ctrl_hdr *hdr),
+ TP_ARGS(vq, hdr),
+ TP_STRUCT__entry(
+ __field(int, dev)
+ __field(unsigned int, vq)
+ __field(const char *, name)
+ __field(u32, type)
+ __field(u32, flags)
+ __field(u64, fence_id)
+ __field(u32, ctx_id)
+ ),
+ TP_fast_assign(
+ __entry->dev = vq->vdev->index;
+ __entry->vq = vq->index;
+ __entry->name = vq->name;
+ __entry->type = le32_to_cpu(hdr->type);
+ __entry->flags = le32_to_cpu(hdr->flags);
+ __entry->fence_id = le64_to_cpu(hdr->fence_id);
+ __entry->ctx_id = le32_to_cpu(hdr->ctx_id);
+ ),
+ TP_printk("vdev=%d vq=%u name=%s type=0x%x flags=0x%x fence_id=%llu ctx_id=%u",
+ __entry->dev, __entry->vq, __entry->name,
+ __entry->type, __entry->flags, __entry->fence_id,
+ __entry->ctx_id)
+);
+
+DEFINE_EVENT(virtio_gpu_cmd, virtio_gpu_cmd_queue,
+ TP_PROTO(struct virtqueue *vq, struct virtio_gpu_ctrl_hdr *hdr),
+ TP_ARGS(vq, hdr)
+);
+
+DEFINE_EVENT(virtio_gpu_cmd, virtio_gpu_cmd_response,
+ TP_PROTO(struct virtqueue *vq, struct virtio_gpu_ctrl_hdr *hdr),
+ TP_ARGS(vq, hdr)
+);
+
+#endif
+
+#undef TRACE_INCLUDE_PATH
+#define TRACE_INCLUDE_PATH ../../drivers/gpu/drm/virtio
+#include <trace/define_trace.h>
diff --git a/drivers/gpu/drm/virtio/virtgpu_trace_points.c b/drivers/gpu/drm/virtio/virtgpu_trace_points.c
new file mode 100644
index 000000000000..1970cb6f24ef
--- /dev/null
+++ b/drivers/gpu/drm/virtio/virtgpu_trace_points.c
@@ -0,0 +1,5 @@
+// SPDX-License-Identifier: GPL-2.0
+#include "virtgpu_drv.h"
+
+#define CREATE_TRACE_POINTS
+#include "virtgpu_trace.h"
diff --git a/drivers/gpu/drm/virtio/virtgpu_vq.c b/drivers/gpu/drm/virtio/virtgpu_vq.c
index e62fe24b1a2e..2c5eeccb88c0 100644
--- a/drivers/gpu/drm/virtio/virtgpu_vq.c
+++ b/drivers/gpu/drm/virtio/virtgpu_vq.c
@@ -28,6 +28,7 @@
#include <drm/drmP.h>
#include "virtgpu_drv.h"
+#include "virtgpu_trace.h"
#include <linux/virtio.h>
#include <linux/virtio_config.h>
#include <linux/virtio_ring.h>
@@ -192,6 +193,9 @@ void virtio_gpu_dequeue_ctrl_func(struct work_struct *work)
list_for_each_entry_safe(entry, tmp, &reclaim_list, list) {
resp = (struct virtio_gpu_ctrl_hdr *)entry->resp_buf;
+
+ trace_virtio_gpu_cmd_response(vgdev->ctrlq.vq, resp);
+
if (resp->type != cpu_to_le32(VIRTIO_GPU_RESP_OK_NODATA)) {
if (resp->type >= cpu_to_le32(VIRTIO_GPU_RESP_ERR_UNSPEC)) {
struct virtio_gpu_ctrl_hdr *cmd;
@@ -284,6 +288,9 @@ retry:
spin_lock(&vgdev->ctrlq.qlock);
goto retry;
} else {
+ trace_virtio_gpu_cmd_queue(vq,
+ (struct virtio_gpu_ctrl_hdr *)vbuf->buf);
+
virtqueue_kick(vq);
}
@@ -359,6 +366,9 @@ retry:
spin_lock(&vgdev->cursorq.qlock);
goto retry;
} else {
+ trace_virtio_gpu_cmd_queue(vq,
+ (struct virtio_gpu_ctrl_hdr *)vbuf->buf);
+
virtqueue_kick(vq);
}