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msm: kgsl: Do not capture DTCM on gmu boot failure

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Accessing DTCM can cause NoC error sometimes if GMU is accessing
any of its TCMs at the same time as host.

Change-Id: I3d7a3169620854dbd659f378c216a7b15435c914
Signed-off-by: Harshdeep Dhatt <hdhatt@codeaurora.org>
Signed-off-by: Kamal Agrawal <quic_kamaagra@quicinc.com>
This commit is contained in:
Kamal Agrawal
2023-04-21 12:47:38 +05:30
parent ba55275eef
commit fbca1995ab
1 changed files with 3 additions and 10 deletions
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13
drivers/gpu/msm/adreno_a6xx_gmu.c
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@@ -1,6 +1,7 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2018-2020, The Linux Foundation. All rights reserved.
* Copyright (c) 2023 Qualcomm Innovation Center, Inc. All rights reserved.
*/
/* soc/qcom/cmd-db.h needs types.h */
@@ -388,19 +389,11 @@ static int a6xx_gmu_start(struct kgsl_device *device)
gmu_core_regwrite(device, A6XX_GMU_CM3_SYSRESET, 0);
/* Make sure the request completes before continuing */
wmb();
if (timed_poll_check(device,
A6XX_GMU_CM3_FW_INIT_RESULT,
val, GMU_START_TIMEOUT, mask)) {
u32 val;
/*
* The breadcrumb is written to a gmu virtual mapping
* which points to dtcm byte offset 0x3fdc.
*/
gmu_core_regread(device,
A6XX_GMU_CM3_DTCM_START + (0x3fdc >> 2), &val);
dev_err(&gmu->pdev->dev, "GMU doesn't boot: 0x%x\n", val);
dev_err(&gmu->pdev->dev, "GMU doesn't boot\n");
return -ETIMEDOUT;
}