diff options
Diffstat (limited to 'target/linux/brcm2708/patches-4.19/950-0495-drm-v3d-Add-more-tracepoints-for-V3D-GPU-rendering.patch')
| -rw-r--r-- | target/linux/brcm2708/patches-4.19/950-0495-drm-v3d-Add-more-tracepoints-for-V3D-GPU-rendering.patch | 205 |
1 files changed, 205 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.19/950-0495-drm-v3d-Add-more-tracepoints-for-V3D-GPU-rendering.patch b/target/linux/brcm2708/patches-4.19/950-0495-drm-v3d-Add-more-tracepoints-for-V3D-GPU-rendering.patch new file mode 100644 index 0000000000..0b54645107 --- /dev/null +++ b/target/linux/brcm2708/patches-4.19/950-0495-drm-v3d-Add-more-tracepoints-for-V3D-GPU-rendering.patch @@ -0,0 +1,205 @@ +From 128adbc39c9826ca137ca3627cff17644e786fdb Mon Sep 17 00:00:00 2001 +From: Eric Anholt <eric@anholt.net> +Date: Fri, 30 Nov 2018 16:57:58 -0800 +Subject: [PATCH] drm/v3d: Add more tracepoints for V3D GPU rendering. + +The core scheduler tells us when the job is pushed to the scheduler's +queue, and I had the job_run functions saying when they actually queue +the job to the hardware. By adding tracepoints for the very top of +the ioctls and the IRQs signaling job completion, "perf record -a -e +v3d:.\* -e gpu_scheduler:.\* <job>; perf script" gets you a pretty +decent timeline. + +Signed-off-by: Eric Anholt <eric@anholt.net> +Link: https://patchwork.freedesktop.org/patch/msgid/20181201005759.28093-5-eric@anholt.net +Reviewed-by: Dave Emett <david.emett@broadcom.com> +(cherry picked from commit 55a9b74846ed5e6219c7d81a8e1bf96f25d8ad5e) +--- + drivers/gpu/drm/v3d/v3d_gem.c | 4 ++ + drivers/gpu/drm/v3d/v3d_irq.c | 19 +++++- + drivers/gpu/drm/v3d/v3d_trace.h | 101 ++++++++++++++++++++++++++++++++ + 3 files changed, 121 insertions(+), 3 deletions(-) + +--- a/drivers/gpu/drm/v3d/v3d_gem.c ++++ b/drivers/gpu/drm/v3d/v3d_gem.c +@@ -521,6 +521,8 @@ v3d_submit_cl_ioctl(struct drm_device *d + struct drm_syncobj *sync_out; + int ret = 0; + ++ trace_v3d_submit_cl_ioctl(&v3d->drm, args->rcl_start, args->rcl_end); ++ + if (args->pad != 0) { + DRM_INFO("pad must be zero: %d\n", args->pad); + return -EINVAL; +@@ -648,6 +650,8 @@ v3d_submit_tfu_ioctl(struct drm_device * + int ret = 0; + int bo_count; + ++ trace_v3d_submit_tfu_ioctl(&v3d->drm, args->iia); ++ + job = kcalloc(1, sizeof(*job), GFP_KERNEL); + if (!job) + return -ENOMEM; +--- a/drivers/gpu/drm/v3d/v3d_irq.c ++++ b/drivers/gpu/drm/v3d/v3d_irq.c +@@ -15,6 +15,7 @@ + + #include "v3d_drv.h" + #include "v3d_regs.h" ++#include "v3d_trace.h" + + #define V3D_CORE_IRQS ((u32)(V3D_INT_OUTOMEM | \ + V3D_INT_FLDONE | \ +@@ -88,12 +89,20 @@ v3d_irq(int irq, void *arg) + } + + if (intsts & V3D_INT_FLDONE) { +- dma_fence_signal(v3d->bin_job->bin.done_fence); ++ struct v3d_fence *fence = ++ to_v3d_fence(v3d->bin_job->bin.done_fence); ++ ++ trace_v3d_bcl_irq(&v3d->drm, fence->seqno); ++ dma_fence_signal(&fence->base); + status = IRQ_HANDLED; + } + + if (intsts & V3D_INT_FRDONE) { +- dma_fence_signal(v3d->render_job->render.done_fence); ++ struct v3d_fence *fence = ++ to_v3d_fence(v3d->render_job->render.done_fence); ++ ++ trace_v3d_rcl_irq(&v3d->drm, fence->seqno); ++ dma_fence_signal(&fence->base); + status = IRQ_HANDLED; + } + +@@ -119,7 +128,11 @@ v3d_hub_irq(int irq, void *arg) + V3D_WRITE(V3D_HUB_INT_CLR, intsts); + + if (intsts & V3D_HUB_INT_TFUC) { +- dma_fence_signal(v3d->tfu_job->done_fence); ++ struct v3d_fence *fence = ++ to_v3d_fence(v3d->tfu_job->done_fence); ++ ++ trace_v3d_tfu_irq(&v3d->drm, fence->seqno); ++ dma_fence_signal(&fence->base); + status = IRQ_HANDLED; + } + +--- a/drivers/gpu/drm/v3d/v3d_trace.h ++++ b/drivers/gpu/drm/v3d/v3d_trace.h +@@ -12,6 +12,28 @@ + #define TRACE_SYSTEM v3d + #define TRACE_INCLUDE_FILE v3d_trace + ++TRACE_EVENT(v3d_submit_cl_ioctl, ++ TP_PROTO(struct drm_device *dev, u32 ct1qba, u32 ct1qea), ++ TP_ARGS(dev, ct1qba, ct1qea), ++ ++ TP_STRUCT__entry( ++ __field(u32, dev) ++ __field(u32, ct1qba) ++ __field(u32, ct1qea) ++ ), ++ ++ TP_fast_assign( ++ __entry->dev = dev->primary->index; ++ __entry->ct1qba = ct1qba; ++ __entry->ct1qea = ct1qea; ++ ), ++ ++ TP_printk("dev=%u, RCL 0x%08x..0x%08x", ++ __entry->dev, ++ __entry->ct1qba, ++ __entry->ct1qea) ++); ++ + TRACE_EVENT(v3d_submit_cl, + TP_PROTO(struct drm_device *dev, bool is_render, + uint64_t seqno, +@@ -42,6 +64,85 @@ TRACE_EVENT(v3d_submit_cl, + __entry->ctnqea) + ); + ++TRACE_EVENT(v3d_bcl_irq, ++ TP_PROTO(struct drm_device *dev, ++ uint64_t seqno), ++ TP_ARGS(dev, seqno), ++ ++ TP_STRUCT__entry( ++ __field(u32, dev) ++ __field(u64, seqno) ++ ), ++ ++ TP_fast_assign( ++ __entry->dev = dev->primary->index; ++ __entry->seqno = seqno; ++ ), ++ ++ TP_printk("dev=%u, seqno=%llu", ++ __entry->dev, ++ __entry->seqno) ++); ++ ++TRACE_EVENT(v3d_rcl_irq, ++ TP_PROTO(struct drm_device *dev, ++ uint64_t seqno), ++ TP_ARGS(dev, seqno), ++ ++ TP_STRUCT__entry( ++ __field(u32, dev) ++ __field(u64, seqno) ++ ), ++ ++ TP_fast_assign( ++ __entry->dev = dev->primary->index; ++ __entry->seqno = seqno; ++ ), ++ ++ TP_printk("dev=%u, seqno=%llu", ++ __entry->dev, ++ __entry->seqno) ++); ++ ++TRACE_EVENT(v3d_tfu_irq, ++ TP_PROTO(struct drm_device *dev, ++ uint64_t seqno), ++ TP_ARGS(dev, seqno), ++ ++ TP_STRUCT__entry( ++ __field(u32, dev) ++ __field(u64, seqno) ++ ), ++ ++ TP_fast_assign( ++ __entry->dev = dev->primary->index; ++ __entry->seqno = seqno; ++ ), ++ ++ TP_printk("dev=%u, seqno=%llu", ++ __entry->dev, ++ __entry->seqno) ++); ++ ++TRACE_EVENT(v3d_submit_tfu_ioctl, ++ TP_PROTO(struct drm_device *dev, u32 iia), ++ TP_ARGS(dev, iia), ++ ++ TP_STRUCT__entry( ++ __field(u32, dev) ++ __field(u32, iia) ++ ), ++ ++ TP_fast_assign( ++ __entry->dev = dev->primary->index; ++ __entry->iia = iia; ++ ), ++ ++ TP_printk("dev=%u, IIA 0x%08x", ++ __entry->dev, ++ __entry->iia) ++); ++ + TRACE_EVENT(v3d_submit_tfu, + TP_PROTO(struct drm_device *dev, + uint64_t seqno), |