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 --- drivers/gpu/drm/virtio/Makefile | 2 +- drivers/gpu/drm/virtio/virtgpu_trace.h | 52 +++++++++++++++++++ drivers/gpu/drm/virtio/virtgpu_trace_points.c | 5 ++ drivers/gpu/drm/virtio/virtgpu_vq.c | 10 ++++ 4 files changed, 68 insertions(+), 1 deletion(-) create mode 100644 drivers/gpu/drm/virtio/virtgpu_trace.h create mode 100644 drivers/gpu/drm/virtio/virtgpu_trace_points.c
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 @@ static int virtio_gpu_queue_ctrl_buffer_locked(struct virtio_gpu_device *vgdev, 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 @@ static int virtio_gpu_queue_cursor(struct virtio_gpu_device *vgdev, spin_lock(&vgdev->cursorq.qlock); goto retry; } else { + trace_virtio_gpu_cmd_queue(vq, + (struct virtio_gpu_ctrl_hdr *)vbuf->buf); + virtqueue_kick(vq); }