From 14d1d190869685d3a1e8a3f63924e20594557cb2 Mon Sep 17 00:00:00 2001 From: Eric Anholt Date: Tue, 5 Jun 2018 12:03:01 -0700 Subject: [PATCH] drm/v3d: Remove the bad signaled() implementation. Since our seqno value comes from a counter associated with the GPU ring, not the entity (aka client), they'll be completed out of order. There's actually no need for this code at all, since we don't have enable_signaling() and thus DMA_FENCE_SIGNALED_BIT will be set before we could be called. Signed-off-by: Eric Anholt Link: https://patchwork.freedesktop.org/patch/msgid/20180605190302.18279-2-eric@anholt.net Reviewed-by: Lucas Stach --- drivers/gpu/drm/v3d/v3d_drv.h | 1 - drivers/gpu/drm/v3d/v3d_fence.c | 13 ++++--------- drivers/gpu/drm/v3d/v3d_gem.c | 7 ++----- drivers/gpu/drm/v3d/v3d_irq.c | 3 --- 4 files changed, 6 insertions(+), 18 deletions(-) diff --git a/drivers/gpu/drm/v3d/v3d_drv.h b/drivers/gpu/drm/v3d/v3d_drv.h index 26005abd9c5d..f32ac8c98f37 100644 --- a/drivers/gpu/drm/v3d/v3d_drv.h +++ b/drivers/gpu/drm/v3d/v3d_drv.h @@ -25,7 +25,6 @@ struct v3d_queue_state { u64 fence_context; u64 emit_seqno; - u64 finished_seqno; }; struct v3d_dev { diff --git a/drivers/gpu/drm/v3d/v3d_fence.c b/drivers/gpu/drm/v3d/v3d_fence.c index 087d49c8cb12..bfe31a89668b 100644 --- a/drivers/gpu/drm/v3d/v3d_fence.c +++ b/drivers/gpu/drm/v3d/v3d_fence.c @@ -40,19 +40,14 @@ static bool v3d_fence_enable_signaling(struct dma_fence *fence) return true; } -static bool v3d_fence_signaled(struct dma_fence *fence) -{ - struct v3d_fence *f = to_v3d_fence(fence); - struct v3d_dev *v3d = to_v3d_dev(f->dev); - - return v3d->queue[f->queue].finished_seqno >= f->seqno; -} - const struct dma_fence_ops v3d_fence_ops = { .get_driver_name = v3d_fence_get_driver_name, .get_timeline_name = v3d_fence_get_timeline_name, .enable_signaling = v3d_fence_enable_signaling, - .signaled = v3d_fence_signaled, + /* Each of our fences gets signaled as complete by the IRQ + * handler, so we rely on the core's tracking of signaling. + */ + .signaled = NULL, .wait = dma_fence_default_wait, .release = dma_fence_free, }; diff --git a/drivers/gpu/drm/v3d/v3d_gem.c b/drivers/gpu/drm/v3d/v3d_gem.c index 269fe16379c0..e1fcbb4cd0ae 100644 --- a/drivers/gpu/drm/v3d/v3d_gem.c +++ b/drivers/gpu/drm/v3d/v3d_gem.c @@ -654,17 +654,14 @@ void v3d_gem_destroy(struct drm_device *dev) { struct v3d_dev *v3d = to_v3d_dev(dev); - enum v3d_queue q; v3d_sched_fini(v3d); /* Waiting for exec to finish would need to be done before * unregistering V3D. */ - for (q = 0; q < V3D_MAX_QUEUES; q++) { - WARN_ON(v3d->queue[q].emit_seqno != - v3d->queue[q].finished_seqno); - } + WARN_ON(v3d->bin_job); + WARN_ON(v3d->render_job); drm_mm_takedown(&v3d->mm); diff --git a/drivers/gpu/drm/v3d/v3d_irq.c b/drivers/gpu/drm/v3d/v3d_irq.c index 77e1fa046c10..e07514eb11b5 100644 --- a/drivers/gpu/drm/v3d/v3d_irq.c +++ b/drivers/gpu/drm/v3d/v3d_irq.c @@ -87,15 +87,12 @@ v3d_irq(int irq, void *arg) } if (intsts & V3D_INT_FLDONE) { - v3d->queue[V3D_BIN].finished_seqno++; dma_fence_signal(v3d->bin_job->bin.done_fence); status = IRQ_HANDLED; } if (intsts & V3D_INT_FRDONE) { - v3d->queue[V3D_RENDER].finished_seqno++; dma_fence_signal(v3d->render_job->render.done_fence); - status = IRQ_HANDLED; } -- 2.30.2