diff options
| author | Dmitry Baryshkov <dmitry.baryshkov@linaro.org> | 2022-11-14 20:06:32 +0300 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2022-11-14 18:09:38 +0000 |
| commit | 417b76adcf1d141666866eba5afdd42953f66e2f (patch) | |
| tree | 4ee4795521175d7f9f89e7af7664c0680ebe4908 /drivers/iommu/arm | |
| parent | 30b912a03d91727d75ae14f277b64aca8fb915e4 (diff) | |
iommu/arm-smmu-qcom: provide separate implementation for SDM845-smmu-500
There is only one platform, which needs special care in the reset
function, the SDM845. Add special handler for sdm845 and drop the
qcom_smmu500_reset() function.
Reviewed-by: Sai Prakash Ranjan <quic_saipraka@quicinc.com>
Tested-by: Sai Prakash Ranjan <quic_saipraka@quicinc.com>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20221114170635.1406534-8-dmitry.baryshkov@linaro.org
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'drivers/iommu/arm')
| -rw-r--r-- | drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c | 37 |
1 files changed, 22 insertions, 15 deletions
diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c index e61194127772..6dc7fa918799 100644 --- a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c +++ b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c @@ -361,6 +361,8 @@ static int qcom_sdm845_smmu500_reset(struct arm_smmu_device *smmu) { int ret; + arm_mmu500_reset(smmu); + /* * To address performance degradation in non-real time clients, * such as USB and UFS, turn off wait-for-safe on sdm845 based boards, @@ -374,23 +376,20 @@ static int qcom_sdm845_smmu500_reset(struct arm_smmu_device *smmu) return ret; } -static int qcom_smmu500_reset(struct arm_smmu_device *smmu) -{ - const struct device_node *np = smmu->dev->of_node; - - arm_mmu500_reset(smmu); - - if (of_device_is_compatible(np, "qcom,sdm845-smmu-500")) - return qcom_sdm845_smmu500_reset(smmu); - - return 0; -} - static const struct arm_smmu_impl qcom_smmu_impl = { .init_context = qcom_smmu_init_context, .cfg_probe = qcom_smmu_cfg_probe, .def_domain_type = qcom_smmu_def_domain_type, - .reset = qcom_smmu500_reset, + .reset = arm_mmu500_reset, + .write_s2cr = qcom_smmu_write_s2cr, + .tlb_sync = qcom_smmu_tlb_sync, +}; + +static const struct arm_smmu_impl sdm845_smmu_500_impl = { + .init_context = qcom_smmu_init_context, + .cfg_probe = qcom_smmu_cfg_probe, + .def_domain_type = qcom_smmu_def_domain_type, + .reset = qcom_sdm845_smmu500_reset, .write_s2cr = qcom_smmu_write_s2cr, .tlb_sync = qcom_smmu_tlb_sync, }; @@ -398,7 +397,7 @@ static const struct arm_smmu_impl qcom_smmu_impl = { static const struct arm_smmu_impl qcom_adreno_smmu_impl = { .init_context = qcom_adreno_smmu_init_context, .def_domain_type = qcom_smmu_def_domain_type, - .reset = qcom_smmu500_reset, + .reset = arm_mmu500_reset, .alloc_context_bank = qcom_adreno_smmu_alloc_context_bank, .write_sctlr = qcom_adreno_smmu_write_sctlr, .tlb_sync = qcom_smmu_tlb_sync, @@ -450,6 +449,14 @@ static const struct qcom_smmu_match_data qcom_smmu_data = { .adreno_impl = &qcom_adreno_smmu_impl, }; +static const struct qcom_smmu_match_data sdm845_smmu_500_data = { + .impl = &sdm845_smmu_500_impl, + /* + * No need for adreno impl here. On sdm845 the Adreno SMMU is handled + * by the separate sdm845-smmu-v2 device. + */ +}; + static const struct of_device_id __maybe_unused qcom_smmu_impl_of_match[] = { { .compatible = "qcom,msm8996-smmu-v2", .data = &msm8996_smmu_data }, { .compatible = "qcom,msm8998-smmu-v2", .data = &qcom_smmu_data }, @@ -461,7 +468,7 @@ static const struct of_device_id __maybe_unused qcom_smmu_impl_of_match[] = { { .compatible = "qcom,sc8280xp-smmu-500", .data = &qcom_smmu_data }, { .compatible = "qcom,sdm630-smmu-v2", .data = &qcom_smmu_data }, { .compatible = "qcom,sdm845-smmu-v2", .data = &qcom_smmu_data }, - { .compatible = "qcom,sdm845-smmu-500", .data = &qcom_smmu_data }, + { .compatible = "qcom,sdm845-smmu-500", .data = &sdm845_smmu_500_data }, { .compatible = "qcom,sm6115-smmu-500", .data = &qcom_smmu_data }, { .compatible = "qcom,sm6125-smmu-500", .data = &qcom_smmu_data }, { .compatible = "qcom,sm6350-smmu-500", .data = &qcom_smmu_data }, |