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From: Rob Clark <robdclark@gmail.com>
To: dri-devel@lists.freedesktop.org
Cc: freedreno@lists.freedesktop.org, linux-arm-msm@vger.kernel.org,
	Akhil P Oommen <akhilpo@codeaurora.org>,
	Rob Clark <robdclark@chromium.org>,
	Rob Clark <robdclark@gmail.com>, Sean Paul <sean@poorly.run>,
	David Airlie <airlied@linux.ie>, Daniel Vetter <daniel@ffwll.ch>,
	Jordan Crouse <jordan@cosmicpenguin.net>,
	Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>,
	Jonathan Marek <jonathan@marek.ca>,
	Stephen Boyd <swboyd@chromium.org>,
	Sharat Masetty <smasetty@codeaurora.org>,
	Konrad Dybcio <konrad.dybcio@somainline.org>,
	linux-kernel@vger.kernel.org (open list)
Subject: [PATCH 3/7] drm/msm/gpu: Add some WARN_ON()s
Date: Wed, 24 Nov 2021 13:41:30 -0800	[thread overview]
Message-ID: <20211124214151.1427022-6-robdclark@gmail.com> (raw)
In-Reply-To: <20211124214151.1427022-1-robdclark@gmail.com>

From: Rob Clark <robdclark@chromium.org>

We don't expect either of these conditions to ever be true, so let's get
shouty if they are.

Signed-off-by: Rob Clark <robdclark@chromium.org>
---
 drivers/gpu/drm/msm/adreno/adreno_gpu.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.c b/drivers/gpu/drm/msm/adreno/adreno_gpu.c
index a379f98aca54..6c42cc0ebe84 100644
--- a/drivers/gpu/drm/msm/adreno/adreno_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.c
@@ -504,6 +504,9 @@ int adreno_gpu_state_get(struct msm_gpu *gpu, struct msm_gpu_state *state)
 	struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu);
 	int i, count = 0;
 
+	WARN_ON(gpu->needs_hw_init);
+	WARN_ON(!mutex_is_locked(&gpu->dev->struct_mutex));
+
 	kref_init(&state->ref);
 
 	ktime_get_real_ts64(&state->time);
-- 
2.33.1


  parent reply	other threads:[~2021-11-24 21:37 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-11-24 21:41 [PATCH 0/7] drm/msm: Improve GMU debugging Rob Clark
2021-11-24 21:41 ` [PATCH 1/7] drm/msm/a6xx: Capture gmu log in devcoredump Rob Clark
2021-11-24 21:41 ` [PATCH v2 1/3] drm/msm/gpu: Fix idle_work time Rob Clark
2021-11-24 21:41 ` [PATCH v2 2/3] drm/msm/gpu: Fix check for devices without devfreq Rob Clark
2021-11-24 21:41 ` [PATCH 2/7] drm/msm/gpu: Name GMU bos Rob Clark
2021-11-24 21:41 ` Rob Clark [this message]
2021-11-24 21:41 ` [PATCH v2 3/3] drm/msm/gpu: Respect PM QoS constraints Rob Clark
2021-11-24 21:41 ` [PATCH 4/7] drm/msm/gpu: Make a6xx_get_gmu_log() more generic Rob Clark
2021-11-24 21:41 ` [PATCH 5/7] drm/msm/gpu: Also snapshot GMU HFI buffer Rob Clark
2021-11-24 21:41 ` [PATCH 6/7] drm/msm/gpu: Snapshot GMU debug buffer Rob Clark
2021-11-24 21:41 ` [PATCH 7/7] drm/msm/gpu: Add a comment in a6xx_gmu_init() Rob Clark

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