1 // SPDX-License-Identifier: GPL-2.0-only
5 #define pr_fmt(fmt) "arm-smmu: " fmt
10 #include "arm-smmu.h"
44 /* Since we don't care for sGFAR, we can do without 64-bit accessors */
65 	cs->id_base = atomic_fetch_add(smmu->num_context_banks, &context_count);  in cavium_cfg_probe()
66 	dev_notice(smmu->dev, "\tenabling workaround for Cavium erratum 27704\n");  in cavium_cfg_probe()
74 	struct cavium_smmu *cs = container_of(smmu_domain->smmu,  in cavium_init_context()
77 	if (smmu_domain->stage == ARM_SMMU_DOMAIN_S2)  in cavium_init_context()
78 		smmu_domain->cfg.vmid += cs->id_base;  in cavium_init_context()
80 		smmu_domain->cfg.asid += cs->id_base;  in cavium_init_context()
94 	cs = devm_kzalloc(smmu->dev, sizeof(*cs), GFP_KERNEL);  in cavium_smmu_impl_init()
96 		return ERR_PTR(-ENOMEM);  in cavium_smmu_impl_init()
98 	cs->smmu = *smmu;  in cavium_smmu_impl_init()
99 	cs->smmu.impl = &cavium_impl;  in cavium_smmu_impl_init()
101 	devm_kfree(smmu->dev, smmu);  in cavium_smmu_impl_init()
103 	return &cs->smmu;  in cavium_smmu_impl_init()
118 	 * On MMU-500 r2p0 onwards we need to clear ACR.CACHE_LOCK before  in arm_mmu500_reset()
135 	 * Disable MMU-500's not-particularly-beneficial next-page  in arm_mmu500_reset()
138 	for (i = 0; i < smmu->num_context_banks; ++i) {  in arm_mmu500_reset()
154 	 * Marvell Armada-AP806 erratum #582743.  in mrvl_mmu500_readq()
164 	 * Marvell Armada-AP806 erratum #582743.  in mrvl_mmu500_writeq()
174 	 * Armada-AP806 erratum #582743.  in mrvl_mmu500_cfg_probe()
179 	smmu->features &= ~(ARM_SMMU_FEAT_FMT_AARCH64_4K |  in mrvl_mmu500_cfg_probe()
196 	const struct device_node *np = smmu->dev->of_node;  in arm_smmu_impl_init()
199 	 * Set the impl for model-specific implementation quirks first,  in arm_smmu_impl_init()
203 	switch (smmu->model) {  in arm_smmu_impl_init()
205 		smmu->impl = &arm_mmu500_impl;  in arm_smmu_impl_init()
213 	/* This is implicitly MMU-400 */  in arm_smmu_impl_init()
214 	if (of_property_read_bool(np, "calxeda,smmu-secure-config-access"))  in arm_smmu_impl_init()
215 		smmu->impl = &calxeda_impl;  in arm_smmu_impl_init()
217 	if (of_device_is_compatible(np, "nvidia,tegra194-smmu"))  in arm_smmu_impl_init()
220 	if (of_device_is_compatible(np, "qcom,sdm845-smmu-500") ||  in arm_smmu_impl_init()
221 	    of_device_is_compatible(np, "qcom,sc7180-smmu-500") ||  in arm_smmu_impl_init()
222 	    of_device_is_compatible(np, "qcom,sm8150-smmu-500") ||  in arm_smmu_impl_init()
223 	    of_device_is_compatible(np, "qcom,sm8250-smmu-500"))  in arm_smmu_impl_init()
226 	if (of_device_is_compatible(np, "marvell,ap806-smmu-500"))  in arm_smmu_impl_init()
227 		smmu->impl = &mrvl_mmu500_impl;  in arm_smmu_impl_init()