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206 lines
5.3 KiB
Diff
206 lines
5.3 KiB
Diff
From 128adbc39c9826ca137ca3627cff17644e786fdb Mon Sep 17 00:00:00 2001
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From: Eric Anholt <eric@anholt.net>
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Date: Fri, 30 Nov 2018 16:57:58 -0800
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Subject: [PATCH] drm/v3d: Add more tracepoints for V3D GPU rendering.
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The core scheduler tells us when the job is pushed to the scheduler's
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queue, and I had the job_run functions saying when they actually queue
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the job to the hardware. By adding tracepoints for the very top of
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the ioctls and the IRQs signaling job completion, "perf record -a -e
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v3d:.\* -e gpu_scheduler:.\* <job>; perf script" gets you a pretty
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decent timeline.
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Signed-off-by: Eric Anholt <eric@anholt.net>
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Link: https://patchwork.freedesktop.org/patch/msgid/20181201005759.28093-5-eric@anholt.net
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Reviewed-by: Dave Emett <david.emett@broadcom.com>
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(cherry picked from commit 55a9b74846ed5e6219c7d81a8e1bf96f25d8ad5e)
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---
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drivers/gpu/drm/v3d/v3d_gem.c | 4 ++
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drivers/gpu/drm/v3d/v3d_irq.c | 19 +++++-
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drivers/gpu/drm/v3d/v3d_trace.h | 101 ++++++++++++++++++++++++++++++++
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3 files changed, 121 insertions(+), 3 deletions(-)
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--- a/drivers/gpu/drm/v3d/v3d_gem.c
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+++ b/drivers/gpu/drm/v3d/v3d_gem.c
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@@ -521,6 +521,8 @@ v3d_submit_cl_ioctl(struct drm_device *d
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struct drm_syncobj *sync_out;
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int ret = 0;
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+ trace_v3d_submit_cl_ioctl(&v3d->drm, args->rcl_start, args->rcl_end);
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+
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if (args->pad != 0) {
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DRM_INFO("pad must be zero: %d\n", args->pad);
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return -EINVAL;
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@@ -648,6 +650,8 @@ v3d_submit_tfu_ioctl(struct drm_device *
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int ret = 0;
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int bo_count;
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+ trace_v3d_submit_tfu_ioctl(&v3d->drm, args->iia);
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+
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job = kcalloc(1, sizeof(*job), GFP_KERNEL);
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if (!job)
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return -ENOMEM;
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--- a/drivers/gpu/drm/v3d/v3d_irq.c
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+++ b/drivers/gpu/drm/v3d/v3d_irq.c
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@@ -15,6 +15,7 @@
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#include "v3d_drv.h"
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#include "v3d_regs.h"
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+#include "v3d_trace.h"
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#define V3D_CORE_IRQS ((u32)(V3D_INT_OUTOMEM | \
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V3D_INT_FLDONE | \
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@@ -88,12 +89,20 @@ v3d_irq(int irq, void *arg)
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}
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if (intsts & V3D_INT_FLDONE) {
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- dma_fence_signal(v3d->bin_job->bin.done_fence);
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+ struct v3d_fence *fence =
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+ to_v3d_fence(v3d->bin_job->bin.done_fence);
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+
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+ trace_v3d_bcl_irq(&v3d->drm, fence->seqno);
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+ dma_fence_signal(&fence->base);
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status = IRQ_HANDLED;
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}
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if (intsts & V3D_INT_FRDONE) {
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- dma_fence_signal(v3d->render_job->render.done_fence);
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+ struct v3d_fence *fence =
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+ to_v3d_fence(v3d->render_job->render.done_fence);
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+
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+ trace_v3d_rcl_irq(&v3d->drm, fence->seqno);
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+ dma_fence_signal(&fence->base);
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status = IRQ_HANDLED;
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}
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@@ -119,7 +128,11 @@ v3d_hub_irq(int irq, void *arg)
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V3D_WRITE(V3D_HUB_INT_CLR, intsts);
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if (intsts & V3D_HUB_INT_TFUC) {
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- dma_fence_signal(v3d->tfu_job->done_fence);
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+ struct v3d_fence *fence =
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+ to_v3d_fence(v3d->tfu_job->done_fence);
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+
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+ trace_v3d_tfu_irq(&v3d->drm, fence->seqno);
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+ dma_fence_signal(&fence->base);
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status = IRQ_HANDLED;
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}
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--- a/drivers/gpu/drm/v3d/v3d_trace.h
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+++ b/drivers/gpu/drm/v3d/v3d_trace.h
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@@ -12,6 +12,28 @@
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#define TRACE_SYSTEM v3d
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#define TRACE_INCLUDE_FILE v3d_trace
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+TRACE_EVENT(v3d_submit_cl_ioctl,
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+ TP_PROTO(struct drm_device *dev, u32 ct1qba, u32 ct1qea),
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+ TP_ARGS(dev, ct1qba, ct1qea),
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+
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+ TP_STRUCT__entry(
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+ __field(u32, dev)
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+ __field(u32, ct1qba)
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+ __field(u32, ct1qea)
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+ ),
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+
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+ TP_fast_assign(
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+ __entry->dev = dev->primary->index;
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+ __entry->ct1qba = ct1qba;
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+ __entry->ct1qea = ct1qea;
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+ ),
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+
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+ TP_printk("dev=%u, RCL 0x%08x..0x%08x",
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+ __entry->dev,
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+ __entry->ct1qba,
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+ __entry->ct1qea)
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+);
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+
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TRACE_EVENT(v3d_submit_cl,
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TP_PROTO(struct drm_device *dev, bool is_render,
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uint64_t seqno,
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@@ -42,6 +64,85 @@ TRACE_EVENT(v3d_submit_cl,
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__entry->ctnqea)
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);
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+TRACE_EVENT(v3d_bcl_irq,
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+ TP_PROTO(struct drm_device *dev,
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+ uint64_t seqno),
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+ TP_ARGS(dev, seqno),
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+
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+ TP_STRUCT__entry(
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+ __field(u32, dev)
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+ __field(u64, seqno)
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+ ),
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+
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+ TP_fast_assign(
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+ __entry->dev = dev->primary->index;
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+ __entry->seqno = seqno;
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+ ),
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+
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+ TP_printk("dev=%u, seqno=%llu",
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+ __entry->dev,
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+ __entry->seqno)
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+);
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+
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+TRACE_EVENT(v3d_rcl_irq,
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+ TP_PROTO(struct drm_device *dev,
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+ uint64_t seqno),
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+ TP_ARGS(dev, seqno),
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+
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+ TP_STRUCT__entry(
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+ __field(u32, dev)
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+ __field(u64, seqno)
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+ ),
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+
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+ TP_fast_assign(
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+ __entry->dev = dev->primary->index;
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+ __entry->seqno = seqno;
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+ ),
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+
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+ TP_printk("dev=%u, seqno=%llu",
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+ __entry->dev,
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+ __entry->seqno)
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+);
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+
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+TRACE_EVENT(v3d_tfu_irq,
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+ TP_PROTO(struct drm_device *dev,
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+ uint64_t seqno),
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+ TP_ARGS(dev, seqno),
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+
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+ TP_STRUCT__entry(
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+ __field(u32, dev)
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+ __field(u64, seqno)
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+ ),
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+
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+ TP_fast_assign(
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+ __entry->dev = dev->primary->index;
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+ __entry->seqno = seqno;
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+ ),
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+
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+ TP_printk("dev=%u, seqno=%llu",
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+ __entry->dev,
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+ __entry->seqno)
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+);
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+
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+TRACE_EVENT(v3d_submit_tfu_ioctl,
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+ TP_PROTO(struct drm_device *dev, u32 iia),
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+ TP_ARGS(dev, iia),
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+
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+ TP_STRUCT__entry(
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+ __field(u32, dev)
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+ __field(u32, iia)
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+ ),
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+
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+ TP_fast_assign(
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+ __entry->dev = dev->primary->index;
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+ __entry->iia = iia;
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+ ),
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+
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+ TP_printk("dev=%u, IIA 0x%08x",
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+ __entry->dev,
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+ __entry->iia)
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+);
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+
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TRACE_EVENT(v3d_submit_tfu,
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TP_PROTO(struct drm_device *dev,
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uint64_t seqno),
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