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/Linux-v4.19/drivers/iommu/
Darm-smmu-v3.c2205 u32 reg, __iomem *gbpa = smmu->base + ARM_SMMU_GBPA; in arm_smmu_update_gbpa() local
2207 ret = readl_relaxed_poll_timeout(gbpa, reg, !(reg & GBPA_UPDATE), in arm_smmu_update_gbpa()
2214 writel_relaxed(reg | GBPA_UPDATE, gbpa); in arm_smmu_update_gbpa()
2215 ret = readl_relaxed_poll_timeout(gbpa, reg, !(reg & GBPA_UPDATE), in arm_smmu_update_gbpa()