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From: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>
To: Will Deacon <will@kernel.org>,
	Robin Murphy <robin.murphy@arm.com>,
	Joerg Roedel <joro@8bytes.org>,
	Sibi Sankar <sibis@codeaurora.org>,
	Bjorn Andersson <bjorn.andersson@linaro.org>,
	Jordan Crouse <jcrouse@codeaurora.org>,
	Rob Clark <robdclark@gmail.com>
Cc: Stephen Boyd <swboyd@chromium.org>,
	iommu@lists.linux-foundation.org,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org,
	Matthias Kaehlcke <mka@chromium.org>,
	Evan Green <evgreen@chromium.org>,
	Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>
Subject: [PATCHv3 4/6] iommu/arm-smmu-qcom: Request direct mapping for modem device
Date: Mon, 20 Apr 2020 22:12:02 +0530	[thread overview]
Message-ID: <509d88fbe7592aa15f867933c177b61bc7ba8efa.1587400573.git.saiprakash.ranjan@codeaurora.org> (raw)
In-Reply-To: <cover.1587400573.git.saiprakash.ranjan@codeaurora.org>

From: Sibi Sankar <sibis@codeaurora.org>

Request direct mapping for modem on platforms which don't have TrustZone
(which programs the modem SIDs) to prevent the following global faults seen
on Cheza/Trogdor:

arm-smmu 15000000.iommu: Unexpected global fault, this could be serious
arm-smmu 15000000.iommu: GFSR 0x80000002, GFSYNR0 0x00000000,
			 GFSYNR1 0x00000781, GFSYNR2 0x00000000

arm-smmu 15000000.iommu: Unexpected global fault, this could be serious
arm-smmu 15000000.iommu: GFSR 0x80000002, GFSYNR0 0x00000000,
			 GFSYNR1 0x00000461, GFSYNR2 0x00000000

Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Signed-off-by: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>
---
 drivers/iommu/arm-smmu-qcom.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/iommu/arm-smmu-qcom.c b/drivers/iommu/arm-smmu-qcom.c
index 5bedf21587a5..cf01d0215a39 100644
--- a/drivers/iommu/arm-smmu-qcom.c
+++ b/drivers/iommu/arm-smmu-qcom.c
@@ -17,7 +17,9 @@ static const struct of_device_id qcom_smmu_client_of_match[] = {
 	{ .compatible = "qcom,mdp4" },
 	{ .compatible = "qcom,mdss" },
 	{ .compatible = "qcom,sc7180-mdss" },
+	{ .compatible = "qcom,sc7180-mss-pil" },
 	{ .compatible = "qcom,sdm845-mdss" },
+	{ .compatible = "qcom,sdm845-mss-pil" },
 	{ }
 };
 
-- 
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
of Code Aurora Forum, hosted by The Linux Foundation

  parent reply	other threads:[~2020-04-20 16:43 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-04-20 16:41 [PATCHv3 0/6] iommu/arm-smmu: Allow client devices to select identity mapping Sai Prakash Ranjan
2020-04-20 16:41 ` [PATCHv3 1/6] iommu: arm-smmu-impl: Convert to a generic reset implementation Sai Prakash Ranjan
2020-04-20 16:42 ` [PATCHv3 2/6] iommu/arm-smmu: Allow client devices to select direct mapping Sai Prakash Ranjan
2020-04-20 16:57   ` Robin Murphy
2020-04-20 18:36     ` Sai Prakash Ranjan
2020-04-20 16:42 ` [PATCHv3 3/6] iommu/arm-smmu: Implement iommu_ops->def_domain_type call-back Sai Prakash Ranjan
2020-04-20 16:59   ` Robin Murphy
2020-04-20 16:42 ` Sai Prakash Ranjan [this message]
2020-04-20 17:09   ` [PATCHv3 4/6] iommu/arm-smmu-qcom: Request direct mapping for modem device Robin Murphy
2020-04-20 18:10     ` Sai Prakash Ranjan
2020-04-20 16:42 ` [PATCHv3 5/6] dt-bindings: remoteproc: qcom: Add iommus property Sai Prakash Ranjan
2020-04-20 16:42 ` [PATCHv3 6/6] arm64: dts: qcom: sdm845-cheza: " Sai Prakash Ranjan

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