From 51d86ee5e07ccef85af04ee9850b0baa107999b6 Mon Sep 17 00:00:00 2001 From: Rob Clark Date: Wed, 24 May 2023 08:59:33 -0700 Subject: drm/msm: Switch to fdinfo helper Now that we have a common helper, use it. v2: Rebase on drm-misc-next Signed-off-by: Rob Clark Reviewed-by: Dmitry Baryshkov Acked-by: Dave Airlie Signed-off-by: Neil Armstrong Link: https://patchwork.freedesktop.org/patch/msgid/20230524155956.382440-4-robdclark@gmail.com --- drivers/gpu/drm/msm/msm_gpu.c | 2 -- 1 file changed, 2 deletions(-) (limited to 'drivers/gpu/drm/msm/msm_gpu.c') diff --git a/drivers/gpu/drm/msm/msm_gpu.c b/drivers/gpu/drm/msm/msm_gpu.c index 26ebda40be4f..c403912d13ab 100644 --- a/drivers/gpu/drm/msm/msm_gpu.c +++ b/drivers/gpu/drm/msm/msm_gpu.c @@ -151,8 +151,6 @@ int msm_gpu_pm_suspend(struct msm_gpu *gpu) void msm_gpu_show_fdinfo(struct msm_gpu *gpu, struct msm_file_private *ctx, struct drm_printer *p) { - drm_printf(p, "drm-driver:\t%s\n", gpu->dev->driver->name); - drm_printf(p, "drm-client-id:\t%u\n", ctx->seqno); drm_printf(p, "drm-engine-gpu:\t%llu ns\n", ctx->elapsed_ns); drm_printf(p, "drm-cycles-gpu:\t%llu\n", ctx->cycles); drm_printf(p, "drm-maxfreq-gpu:\t%u Hz\n", gpu->fast_rate); -- cgit From 171f580e32096e0cbd19e458d704b9330197d627 Mon Sep 17 00:00:00 2001 From: Rob Clark Date: Mon, 17 Apr 2023 15:55:10 -0700 Subject: drm/msm: Move cmdstream dumping out of sched kthread This is something that can block for arbitrary amounts of time as userspace consumes from the FIFO. So we don't really want this to be in the fence signaling path. Signed-off-by: Rob Clark Patchwork: https://patchwork.freedesktop.org/patch/532617/ --- drivers/gpu/drm/msm/msm_gem_submit.c | 2 ++ drivers/gpu/drm/msm/msm_gpu.c | 4 ---- drivers/gpu/drm/msm/msm_rd.c | 24 ++++++++---------------- 3 files changed, 10 insertions(+), 20 deletions(-) (limited to 'drivers/gpu/drm/msm/msm_gpu.c') diff --git a/drivers/gpu/drm/msm/msm_gem_submit.c b/drivers/gpu/drm/msm/msm_gem_submit.c index 38aa048471a8..3f1aa4de3b87 100644 --- a/drivers/gpu/drm/msm/msm_gem_submit.c +++ b/drivers/gpu/drm/msm/msm_gem_submit.c @@ -948,6 +948,8 @@ int msm_ioctl_gem_submit(struct drm_device *dev, void *data, /* The scheduler owns a ref now: */ msm_gem_submit_get(submit); + msm_rd_dump_submit(priv->rd, submit, NULL); + drm_sched_entity_push_job(&submit->base); args->fence = submit->fence_id; diff --git a/drivers/gpu/drm/msm/msm_gpu.c b/drivers/gpu/drm/msm/msm_gpu.c index 26ebda40be4f..b1647b851018 100644 --- a/drivers/gpu/drm/msm/msm_gpu.c +++ b/drivers/gpu/drm/msm/msm_gpu.c @@ -748,8 +748,6 @@ void msm_gpu_retire(struct msm_gpu *gpu) /* add bo's to gpu's ring, and kick gpu: */ void msm_gpu_submit(struct msm_gpu *gpu, struct msm_gem_submit *submit) { - struct drm_device *dev = gpu->dev; - struct msm_drm_private *priv = dev->dev_private; struct msm_ringbuffer *ring = submit->ring; unsigned long flags; @@ -761,8 +759,6 @@ void msm_gpu_submit(struct msm_gpu *gpu, struct msm_gem_submit *submit) submit->seqno = submit->hw_fence->seqno; - msm_rd_dump_submit(priv->rd, submit, NULL); - update_sw_cntrs(gpu); /* diff --git a/drivers/gpu/drm/msm/msm_rd.c b/drivers/gpu/drm/msm/msm_rd.c index db2f847c8535..8d5687d5ed78 100644 --- a/drivers/gpu/drm/msm/msm_rd.c +++ b/drivers/gpu/drm/msm/msm_rd.c @@ -83,15 +83,10 @@ struct msm_rd_state { bool open; - /* current submit to read out: */ - struct msm_gem_submit *submit; - /* fifo access is synchronized on the producer side by - * gpu->lock held by submit code (otherwise we could - * end up w/ cmds logged in different order than they - * were executed). And read_lock synchronizes the reads + * write_lock. And read_lock synchronizes the reads */ - struct mutex read_lock; + struct mutex read_lock, write_lock; wait_queue_head_t fifo_event; struct circ_buf fifo; @@ -243,6 +238,7 @@ static void rd_cleanup(struct msm_rd_state *rd) return; mutex_destroy(&rd->read_lock); + mutex_destroy(&rd->write_lock); kfree(rd); } @@ -258,6 +254,7 @@ static struct msm_rd_state *rd_init(struct drm_minor *minor, const char *name) rd->fifo.buf = rd->buf; mutex_init(&rd->read_lock); + mutex_init(&rd->write_lock); init_waitqueue_head(&rd->fifo_event); @@ -338,19 +335,15 @@ static void snapshot_buf(struct msm_rd_state *rd, if (!(submit->bos[idx].flags & MSM_SUBMIT_BO_READ)) return; - msm_gem_lock(&obj->base); buf = msm_gem_get_vaddr_active(&obj->base); if (IS_ERR(buf)) - goto out_unlock; + return; buf += offset; rd_write_section(rd, RD_BUFFER_CONTENTS, buf, size); msm_gem_put_vaddr_locked(&obj->base); - -out_unlock: - msm_gem_unlock(&obj->base); } /* called under gpu->lock */ @@ -364,10 +357,7 @@ void msm_rd_dump_submit(struct msm_rd_state *rd, struct msm_gem_submit *submit, if (!rd->open) return; - /* writing into fifo is serialized by caller, and - * rd->read_lock is used to serialize the reads - */ - WARN_ON(!mutex_is_locked(&submit->gpu->lock)); + mutex_lock(&rd->write_lock); if (fmt) { va_list args; @@ -424,5 +414,7 @@ void msm_rd_dump_submit(struct msm_rd_state *rd, struct msm_gem_submit *submit, break; } } + + mutex_unlock(&rd->write_lock); } #endif -- cgit