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drm/msm: Take single rpm refcount on behalf of all submits

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Instead of separate refcount for each submit, take single rpm refcount
on behalf of all the submits. This makes it easier to drop the rpm
refcount during recovery in an upcoming patch.

Signed-off-by: Akhil P Oommen <quic_akhilpo@quicinc.com>
Patchwork: https://patchwork.freedesktop.org/patch/498392/
Link: https://lore.kernel.org/r/20220819015030.v5.2.Ifee853f6d8217a0fdacc459092bbc9e81a8a7ac7@changeid
Signed-off-by: Rob Clark <robdclark@chromium.org>
This commit is contained in:
Akhil P Oommen 2022-08-19 01:52:10 +05:30 committed by Rob Clark
parent 125e03b2b2
commit 5b26f37d13
1 changed files with 8 additions and 4 deletions
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12
drivers/gpu/drm/msm/msm_gpu.c
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@ -664,11 +664,12 @@ static void retire_submit(struct msm_gpu *gpu, struct msm_ringbuffer *ring,
mutex_lock(&gpu->active_lock);
gpu->active_submits--;
WARN_ON(gpu->active_submits < 0);
if (!gpu->active_submits)
if (!gpu->active_submits) {
msm_devfreq_idle(gpu);
mutex_unlock(&gpu->active_lock);
pm_runtime_put_autosuspend(&gpu->pdev->dev);
}
pm_runtime_put_autosuspend(&gpu->pdev->dev);
mutex_unlock(&gpu->active_lock);
msm_gem_submit_put(submit);
}
@ -757,14 +758,17 @@ void msm_gpu_submit(struct msm_gpu *gpu, struct msm_gem_submit *submit)
/* Update devfreq on transition from idle->active: */
mutex_lock(&gpu->active_lock);
if (!gpu->active_submits)
if (!gpu->active_submits) {
pm_runtime_get(&gpu->pdev->dev);
msm_devfreq_active(gpu);
}
gpu->active_submits++;
mutex_unlock(&gpu->active_lock);
gpu->funcs->submit(gpu, submit);
gpu->cur_ctx_seqno = submit->queue->ctx->seqno;
pm_runtime_put(&gpu->pdev->dev);
hangcheck_timer_reset(gpu);
}