Lines Matching refs:smmu
9 #include "arm-smmu.h"
12 struct arm_smmu_device smmu;
17 static struct qcom_smmu *to_qcom_smmu(struct arm_smmu_device *smmu)
19 return container_of(smmu, struct qcom_smmu, smmu);
34 static int qcom_smmu_cfg_probe(struct arm_smmu_device *smmu)
36 struct qcom_smmu *qsmmu = to_qcom_smmu(smmu);
49 if (smmu->num_mapping_groups > 128) {
50 dev_notice(smmu->dev, "\tLimiting the stream matching groups to 128\n");
51 smmu->num_mapping_groups = 128;
54 last_s2cr = ARM_SMMU_GR0_S2CR(smmu->num_mapping_groups - 1);
65 arm_smmu_gr0_write(smmu, last_s2cr, reg);
66 reg = arm_smmu_gr0_read(smmu, last_s2cr);
69 qsmmu->bypass_cbndx = smmu->num_context_banks - 1;
71 set_bit(qsmmu->bypass_cbndx, smmu->context_map);
73 arm_smmu_cb_write(smmu, qsmmu->bypass_cbndx, ARM_SMMU_CB_SCTLR, 0);
76 arm_smmu_gr1_write(smmu, ARM_SMMU_GR1_CBAR(qsmmu->bypass_cbndx), reg);
79 for (i = 0; i < smmu->num_mapping_groups; i++) {
80 smr = arm_smmu_gr0_read(smmu, ARM_SMMU_GR0_SMR(i));
85 smmu->smrs[i].id = FIELD_GET(ARM_SMMU_SMR_ID, smr);
86 smmu->smrs[i].mask = FIELD_GET(ARM_SMMU_SMR_MASK, smr);
87 smmu->smrs[i].valid = true;
89 smmu->s2crs[i].type = S2CR_TYPE_BYPASS;
90 smmu->s2crs[i].privcfg = S2CR_PRIVCFG_DEFAULT;
91 smmu->s2crs[i].cbndx = 0xff;
98 static void qcom_smmu_write_s2cr(struct arm_smmu_device *smmu, int idx)
100 struct arm_smmu_s2cr *s2cr = smmu->s2crs + idx;
101 struct qcom_smmu *qsmmu = to_qcom_smmu(smmu);
130 arm_smmu_gr0_write(smmu, ARM_SMMU_GR0_S2CR(idx), reg);
141 static int qcom_sdm845_smmu500_reset(struct arm_smmu_device *smmu)
153 dev_warn(smmu->dev, "Failed to turn off SAFE logic\n");
158 static int qcom_smmu500_reset(struct arm_smmu_device *smmu)
160 const struct device_node *np = smmu->dev->of_node;
162 arm_mmu500_reset(smmu);
164 if (of_device_is_compatible(np, "qcom,sdm845-smmu-500"))
165 return qcom_sdm845_smmu500_reset(smmu);
177 struct arm_smmu_device *qcom_smmu_impl_init(struct arm_smmu_device *smmu)
185 qsmmu = devm_kzalloc(smmu->dev, sizeof(*qsmmu), GFP_KERNEL);
189 qsmmu->smmu = *smmu;
191 qsmmu->smmu.impl = &qcom_smmu_impl;
192 devm_kfree(smmu->dev, smmu);
194 return &qsmmu->smmu;