static const struct iommu_ops mtk_iommu_ops;
-static int mtk_iommu_hw_init(const struct mtk_iommu_data *data);
+static int mtk_iommu_hw_init(const struct mtk_iommu_data *data, unsigned int bankid);
#define MTK_IOMMU_TLB_ADDR(iova) ({ \
dma_addr_t _addr = iova; \
mutex_lock(&data->mutex);
bank = &data->bank[bankid];
- if (!bank->m4u_dom) { /* Initialize the M4U HW */
+ if (!bank->m4u_dom) { /* Initialize the M4U HW for each a BANK */
ret = pm_runtime_resume_and_get(m4udev);
- if (ret < 0)
+ if (ret < 0) {
+ dev_err(m4udev, "pm get fail(%d) in attach.\n", ret);
goto err_unlock;
+ }
- ret = mtk_iommu_hw_init(data);
+ ret = mtk_iommu_hw_init(data, bankid);
if (ret) {
pm_runtime_put(m4udev);
goto err_unlock;
}
};
-static int mtk_iommu_hw_init(const struct mtk_iommu_data *data)
+static int mtk_iommu_hw_init(const struct mtk_iommu_data *data, unsigned int bankid)
{
+ const struct mtk_iommu_bank_data *bankx = &data->bank[bankid];
const struct mtk_iommu_bank_data *bank0 = &data->bank[0];
u32 regval;
+ /*
+ * Global control settings are in bank0. May re-init these global registers
+ * since no sure if there is bank0 consumers.
+ */
if (data->plat_data->m4u_plat == M4U_MT8173) {
regval = F_MMU_PREFETCH_RT_REPLACE_MOD |
F_MMU_TF_PROT_TO_PROGRAM_ADDR_MT8173;
}
writel_relaxed(regval, bank0->base + REG_MMU_MISC_CTRL);
+ /* Independent settings for each bank */
regval = F_L2_MULIT_HIT_EN |
F_TABLE_WALK_FAULT_INT_EN |
F_PREETCH_FIFO_OVERFLOW_INT_EN |
F_MISS_FIFO_OVERFLOW_INT_EN |
F_PREFETCH_FIFO_ERR_INT_EN |
F_MISS_FIFO_ERR_INT_EN;
- writel_relaxed(regval, bank0->base + REG_MMU_INT_CONTROL0);
+ writel_relaxed(regval, bankx->base + REG_MMU_INT_CONTROL0);
regval = F_INT_TRANSLATION_FAULT |
F_INT_MAIN_MULTI_HIT_FAULT |
F_INT_TLB_MISS_FAULT |
F_INT_MISS_TRANSACTION_FIFO_FAULT |
F_INT_PRETETCH_TRANSATION_FIFO_FAULT;
- writel_relaxed(regval, bank0->base + REG_MMU_INT_MAIN_CONTROL);
+ writel_relaxed(regval, bankx->base + REG_MMU_INT_MAIN_CONTROL);
if (MTK_IOMMU_HAS_FLAG(data->plat_data, HAS_LEGACY_IVRP_PADDR))
regval = (data->protect_base >> 1) | (data->enable_4GB << 31);
else
regval = lower_32_bits(data->protect_base) |
upper_32_bits(data->protect_base);
- writel_relaxed(regval, bank0->base + REG_MMU_IVRP_PADDR);
+ writel_relaxed(regval, bankx->base + REG_MMU_IVRP_PADDR);
- if (devm_request_irq(bank0->parent_dev, bank0->irq, mtk_iommu_isr, 0,
- dev_name(bank0->parent_dev), (void *)bank0)) {
- writel_relaxed(0, bank0->base + REG_MMU_PT_BASE_ADDR);
- dev_err(bank0->parent_dev, "Failed @ IRQ-%d Request\n", bank0->irq);
+ if (devm_request_irq(bankx->parent_dev, bankx->irq, mtk_iommu_isr, 0,
+ dev_name(bankx->parent_dev), (void *)bankx)) {
+ writel_relaxed(0, bankx->base + REG_MMU_PT_BASE_ADDR);
+ dev_err(bankx->parent_dev, "Failed @ IRQ-%d Request\n", bankx->irq);
return -ENODEV;
}