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Message-ID: <20220819015030.v5.7.I54815c7c36b80d4725cd054e536365250454452f@changeid>
Date: Fri, 19 Aug 2022 01:52:15 +0530
From: Akhil P Oommen <quic_akhilpo@...cinc.com>
To: freedreno <freedreno@...ts.freedesktop.org>,
<dri-devel@...ts.freedesktop.org>, <linux-arm-msm@...r.kernel.org>,
Rob Clark <robdclark@...il.com>,
Bjorn Andersson <bjorn.andersson@...aro.org>,
"Dmitry Baryshkov" <dmitry.baryshkov@...aro.org>
CC: Jordan Crouse <jordan@...micpenguin.net>,
Matthias Kaehlcke <mka@...omium.org>,
Jonathan Marek <jonathan@...ek.ca>,
Douglas Anderson <dianders@...omium.org>,
Akhil P Oommen <quic_akhilpo@...cinc.com>,
"Abhinav Kumar" <quic_abhinavk@...cinc.com>,
Dan Carpenter <dan.carpenter@...cle.com>,
Daniel Vetter <daniel@...ll.ch>,
David Airlie <airlied@...ux.ie>, Sean Paul <sean@...rly.run>,
Wang Qing <wangqing@...o.com>, <linux-kernel@...r.kernel.org>
Subject: [PATCH v5 7/7] drm/msm/a6xx: Handle GMU prepare-slumber hfi failure
When prepare-slumber hfi fails, we should follow a6xx_gmu_force_off()
sequence.
Signed-off-by: Akhil P Oommen <quic_akhilpo@...cinc.com>
---
(no changes since v1)
drivers/gpu/drm/msm/adreno/a6xx_gmu.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gmu.c b/drivers/gpu/drm/msm/adreno/a6xx_gmu.c
index db05942..3d00ef9 100644
--- a/drivers/gpu/drm/msm/adreno/a6xx_gmu.c
+++ b/drivers/gpu/drm/msm/adreno/a6xx_gmu.c
@@ -1082,7 +1082,11 @@ static void a6xx_gmu_shutdown(struct a6xx_gmu *gmu)
a6xx_bus_clear_pending_transactions(adreno_gpu);
/* tell the GMU we want to slumber */
- a6xx_gmu_notify_slumber(gmu);
+ ret = a6xx_gmu_notify_slumber(gmu);
+ if (ret) {
+ a6xx_gmu_force_off(gmu);
+ return;
+ }
ret = gmu_poll_timeout(gmu,
REG_A6XX_GPU_GMU_AO_GPU_CX_BUSY_STATUS, val,
--
2.7.4
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