58 	struct iommu_struct *iommu;  in sbus_iommu_init()  local
65 	iommu = kmalloc(sizeof(struct iommu_struct), GFP_KERNEL);  in sbus_iommu_init()
66 	if (!iommu) {  in sbus_iommu_init()
71 	iommu->regs = of_ioremap(&op->resource[0], 0, PAGE_SIZE * 3,  in sbus_iommu_init()
73 	if (!iommu->regs) {  in sbus_iommu_init()
78 	control = sbus_readl(&iommu->regs->control);  in sbus_iommu_init()
83 	sbus_writel(control, &iommu->regs->control);  in sbus_iommu_init()
85 	iommu_invalidate(iommu->regs);  in sbus_iommu_init()
86 	iommu->start = IOMMU_START;  in sbus_iommu_init()
87 	iommu->end = 0xffffffff;  in sbus_iommu_init()
100 	iommu->page_table = (iopte_t *)tmp;  in sbus_iommu_init()
103 	memset(iommu->page_table, 0, IOMMU_NPTES*sizeof(iopte_t));  in sbus_iommu_init()
107 	base = __pa((unsigned long)iommu->page_table) >> 4;  in sbus_iommu_init()
108 	sbus_writel(base, &iommu->regs->base);  in sbus_iommu_init()
109 	iommu_invalidate(iommu->regs);  in sbus_iommu_init()
117 	bit_map_init(&iommu->usemap, bitmap, IOMMU_NPTES);  in sbus_iommu_init()
122 		iommu->usemap.num_colors = vac_cache_size >> PAGE_SHIFT;  in sbus_iommu_init()
124 		iommu->usemap.num_colors = 1;  in sbus_iommu_init()
127 	       impl, vers, iommu->page_table,  in sbus_iommu_init()
130 	op->dev.archdata.iommu = iommu;  in sbus_iommu_init()
179 	struct iommu_struct *iommu = dev->archdata.iommu;  in iommu_get_one()  local
186 	ioptex = bit_map_string_get(&iommu->usemap, npages, page_to_pfn(page));  in iommu_get_one()
189 	busa0 = iommu->start + (ioptex << PAGE_SHIFT);  in iommu_get_one()
190 	iopte0 = &iommu->page_table[ioptex];  in iommu_get_one()
196 		iommu_invalidate_page(iommu->regs, busa);  in iommu_get_one()
285 	struct iommu_struct *iommu = dev->archdata.iommu;  in iommu_release_one()  local
289 	BUG_ON(busa < iommu->start);  in iommu_release_one()
290 	ioptex = (busa - iommu->start) >> PAGE_SHIFT;  in iommu_release_one()
292 		iopte_val(iommu->page_table[ioptex + i]) = 0;  in iommu_release_one()
293 		iommu_invalidate_page(iommu->regs, busa);  in iommu_release_one()
296 	bit_map_clear(&iommu->usemap, ioptex, npages);  in iommu_release_one()
327 	struct iommu_struct *iommu = dev->archdata.iommu;  in iommu_map_dma_area()  local
329 	iopte_t *iopte = iommu->page_table;  in iommu_map_dma_area()
338 	ioptex = bit_map_string_get(&iommu->usemap, len >> PAGE_SHIFT,  in iommu_map_dma_area()
385 	iommu_invalidate(iommu->regs);  in iommu_map_dma_area()
387 	*pba = iommu->start + (ioptex << PAGE_SHIFT);  in iommu_map_dma_area()
393 	struct iommu_struct *iommu = dev->archdata.iommu;  in iommu_unmap_dma_area()  local
394 	iopte_t *iopte = iommu->page_table;  in iommu_unmap_dma_area()
396 	int ioptex = (busa - iommu->start) >> PAGE_SHIFT;  in iommu_unmap_dma_area()
408 	iommu_invalidate(iommu->regs);  in iommu_unmap_dma_area()
409 	bit_map_clear(&iommu->usemap, ioptex, len >> PAGE_SHIFT);  in iommu_unmap_dma_area()