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Commit ae6009c4 authored by Pankaj Gupta's avatar Pankaj Gupta
Browse files

msm: kgsl: Do not clear dispatcher fault when adreno reset fails 



When adreno_reset fails, BUG_ON gets triggered to collect ram dump.
Do not clear dispatcher fault bits in such case to get correct fault
information from ram dump. Clear dispatcher fault when adreno_reset
returns success.

Change-Id: I6f54d48201d5e4ea5e3358b18d2f09ec7b285624
Signed-off-by: default avatarPankaj Gupta <gpankaj@codeaurora.org>
parent 757f1d14

drivers/gpu/msm/adreno_dispatch.c

+4 −3
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0-only

/*

 * Copyright (c) 2013-2019, The Linux Foundation. All rights reserved.

 * Copyright (c) 2013-2020, The Linux Foundation. All rights reserved.

 */



#include <linux/slab.h>
@@ -2260,12 +2260,13 @@ static int dispatcher_do_fault(struct adreno_device *adreno_dev) 
		ret = adreno_reset(device, fault);



	mutex_unlock(&device->mutex);

	/* if any other fault got in until reset then ignore */

	atomic_set(&dispatcher->fault, 0);



	/* If adreno_reset() fails then what hope do we have for the future? */

	BUG_ON(ret);



	/* if any other fault got in until reset then ignore */

	atomic_set(&dispatcher->fault, 0);



	/* recover all the dispatch_q's starting with the one that hung */

	if (dispatch_q)

		recover_dispatch_q(device, dispatch_q, fault, base);