From d5572d3d0034dbcd7048b91a74ae99e05d79e68f Mon Sep 17 00:00:00 2001 From: Akhil P Oommen Date: Fri, 19 Aug 2022 01:52:15 +0530 Subject: [PATCH] drm/msm/a6xx: Handle GMU prepare-slumber hfi failure [ Upstream commit d6463fd4e97545ef4f7069d13a5fa3ac0924dae2 ] When prepare-slumber hfi fails, we should follow a6xx_gmu_force_off() sequence. Signed-off-by: Akhil P Oommen Patchwork: https://patchwork.freedesktop.org/patch/498401/ Link: https://lore.kernel.org/r/20220819015030.v5.7.I54815c7c36b80d4725cd054e536365250454452f@changeid Signed-off-by: Rob Clark Stable-dep-of: f561db72a663 ("drm/msm/a6xx: Fix stale rpmh votes from GPU") Signed-off-by: Sasha Levin --- 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 db19f3dee6f2b..65ba58c712c93 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, -- 2.47.3