From: kholk11@gmail.com
To: will@kernel.org
Cc: robin.murphy@arm.com, joro@8bytes.org,
bjorn.andersson@linaro.org, linux-arm-kernel@lists.infradead.org,
devicetree@vger.kernel.org, kholk11@gmail.com,
marijns95@gmail.com, konradybcio@gmail.com,
martin.botka1@gmail.com, linux-arm-msm@vger.kernel.org,
phone-devel@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH 4/8] iommu/arm-smmu: Support test_smr_masks implementation detail deviation
Date: Sat, 26 Sep 2020 15:00:00 +0200 [thread overview]
Message-ID: <20200926130004.13528-5-kholk11@gmail.com> (raw)
In-Reply-To: <20200926130004.13528-1-kholk11@gmail.com>
From: AngeloGioacchino Del Regno <kholk11@gmail.com>
At least some Qualcomm SoCs do need to override the function
arm_smmu_test_smr_masks entirely: add a test_smr_masks function
to the implementation details structure and call it properly.
Signed-off-by: AngeloGioacchino Del Regno <kholk11@gmail.com>
---
drivers/iommu/arm/arm-smmu/arm-smmu.c | 6 ++++++
drivers/iommu/arm/arm-smmu/arm-smmu.h | 1 +
2 files changed, 7 insertions(+)
diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu.c b/drivers/iommu/arm/arm-smmu/arm-smmu.c
index 09c42af9f31e..446a78dde9cd 100644
--- a/drivers/iommu/arm/arm-smmu/arm-smmu.c
+++ b/drivers/iommu/arm/arm-smmu/arm-smmu.c
@@ -977,6 +977,12 @@ static void arm_smmu_test_smr_masks(struct arm_smmu_device *smmu)
if (!smmu->smrs)
return;
+
+ if (smmu->impl && smmu->impl->test_smr_masks) {
+ smmu->impl->test_smr_masks(smmu);
+ return;
+ }
+
/*
* If we've had to accommodate firmware memory regions, we may
* have live SMRs by now; tread carefully...
diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu.h b/drivers/iommu/arm/arm-smmu/arm-smmu.h
index d890a4a968e8..2cd3d126f675 100644
--- a/drivers/iommu/arm/arm-smmu/arm-smmu.h
+++ b/drivers/iommu/arm/arm-smmu/arm-smmu.h
@@ -387,6 +387,7 @@ struct arm_smmu_impl {
int (*cfg_probe)(struct arm_smmu_device *smmu);
int (*reset)(struct arm_smmu_device *smmu);
int (*init_context)(struct arm_smmu_domain *smmu_domain);
+ void (*test_smr_masks)(struct arm_smmu_device *smmu);
void (*tlb_sync)(struct arm_smmu_device *smmu, int page, int sync,
int status);
int (*def_domain_type)(struct device *dev);
--
2.28.0
next prev parent reply other threads:[~2020-09-26 13:00 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-26 12:59 [PATCH 0/8] Implement firmware quirks for Qualcomm ARM-SMMUv2 kholk11
2020-09-26 12:59 ` [PATCH 1/8] iommu/arm-smmu-qcom: Rename qcom_smmu_impl to qcom_smmu500_impl kholk11
2020-09-26 12:59 ` [PATCH 2/8] iommu/arm-smmu-qcom: Add QC SMMUv2 VA Size quirk for SDM660 kholk11
2020-10-14 15:43 ` Robin Murphy
2020-09-26 12:59 ` [PATCH 3/8] dt-bindings: arm-smmu: add binding for SMMUv2 on Qualcomm SDM660 kholk11
2020-09-29 19:10 ` Rob Herring
2020-09-26 13:00 ` kholk11 [this message]
2020-10-14 15:52 ` [PATCH 4/8] iommu/arm-smmu: Support test_smr_masks implementation detail deviation Robin Murphy
2020-09-26 13:00 ` [PATCH 5/8] iommu/arm-smmu-qcom: Add test_smr_masks detail to QCOM SMMUv2 kholk11
2020-09-26 13:00 ` [PATCH 6/8] iommu/arm-smmu: Move stream mapping reset to separate function kholk11
2020-10-14 15:56 ` Robin Murphy
2020-09-26 13:00 ` [PATCH 7/8] iommu/arm-smmu: Support stream_mapping_reset implementation detail kholk11
2020-09-26 13:00 ` [PATCH 8/8] iommu/arm-smmu-qcom: Add stream_mapping_reset detail to QCOM SMMUv2 kholk11
2020-10-14 22:14 ` Bjorn Andersson
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