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msm: sde: Remove panic from rotator smmu fault handler

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During SMMU fault for SDE rotator, it should return to SMMU driver after
collecting dump data, so that SMMU driver can generate proper analysis
info for the fault.

CRs-Fixed: 2007472
Change-Id: I59b7b12e53524e40811f1237e4366b23a4933561
Signed-off-by: Benjamin Chan <bkchan@codeaurora.org>
This commit is contained in:
Benjamin Chan 2017-02-15 11:40:15 -05:00 • committed by Gerrit - the friendly Code Review server
parent 7066afbbe9
commit 296dd37fbf
1 changed files with 10 additions and 3 deletions
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13
drivers/media/platform/msm/sde/rotator/sde_rotator_smmu.c
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@ -530,11 +530,18 @@ static int sde_smmu_fault_handler(struct iommu_domain *domain,
sde_smmu = (struct sde_smmu_client *)token;
/* trigger rotator panic and dump */
SDEROT_ERR("trigger rotator panic and dump, iova=0x%08lx\n", iova);
/* trigger rotator dump */
SDEROT_ERR("trigger rotator dump, iova=0x%08lx, flags=0x%x\n",
iova, flags);
SDEROT_ERR("SMMU device:%s", sde_smmu->dev->kobj.name);
sde_rot_dump_panic();
/* generate dump, but no panic */
sde_rot_evtlog_tout_handler(false, __func__, "rot", "vbif_dbg_bus");
/*
* return -ENOSYS to allow smmu driver to dump out useful
* debug info.
*/
return rc;
}