powerpc/powernv: Add a page size parameter to pnv_pci_setup_iommu_table()

Since a TCE page size can be other than 4K, make it configurable for
P5IOC2 and IODA PHBs.

Signed-off-by: Alexey Kardashevskiy <[e-mail]>
Signed-off-by: Benjamin Herrenschmidt <[e-mail]>

arch/powerpc/platforms/powernv/pci-ioda.c

···
 	/* Setup linux iommu table */
 	tbl = &pe->tce32_table;
 	pnv_pci_setup_iommu_table(tbl, addr, TCE32_TABLE_SIZE * segs,
-				  base << 28);
+				  base << 28, IOMMU_PAGE_SHIFT_4K);
 
 	/* OPAL variant of P7IOC SW invalidated TCEs */
 	swinvp = of_get_property(phb->hose->dn, "ibm,opal-tce-kill", NULL);
···
 
 	/* Setup linux iommu table */
 	tbl = &pe->tce32_table;
-	pnv_pci_setup_iommu_table(tbl, addr, tce_table_size, 0);
+	pnv_pci_setup_iommu_table(tbl, addr, tce_table_size, 0,
+			IOMMU_PAGE_SHIFT_4K);
 
 	/* OPAL variant of PHB3 invalidated TCEs */
 	swinvp = of_get_property(phb->hose->dn, "ibm,opal-tce-kill", NULL);

arch/powerpc/platforms/powernv/pci-p5ioc2.c

···
 	/* Setup TCEs */
 	phb->dma_dev_setup = pnv_pci_p5ioc2_dma_dev_setup;
 	pnv_pci_setup_iommu_table(&phb->p5ioc2.iommu_table,
-				  tce_mem, tce_size, 0);
+				  tce_mem, tce_size, 0,
+				  IOMMU_PAGE_SHIFT_4K);
 }
 
 void __init pnv_pci_init_p5ioc2_hub(struct device_node *np)

arch/powerpc/platforms/powernv/pci.c

···
 
 void pnv_pci_setup_iommu_table(struct iommu_table *tbl,
 			       void *tce_mem, u64 tce_size,
-			       u64 dma_offset)
+			       u64 dma_offset, unsigned page_shift)
 {
 	tbl->it_blocksize = 16;
 	tbl->it_base = (unsigned long)tce_mem;
-	tbl->it_page_shift = IOMMU_PAGE_SHIFT_4K;
+	tbl->it_page_shift = page_shift;
 	tbl->it_offset = dma_offset >> tbl->it_page_shift;
 	tbl->it_index = 0;
 	tbl->it_size = tce_size >> 3;
···
 	if (WARN_ON(!tbl))
 		return NULL;
 	pnv_pci_setup_iommu_table(tbl, __va(be64_to_cpup(basep)),
-				  be32_to_cpup(sizep), 0);
+				  be32_to_cpup(sizep), 0, IOMMU_PAGE_SHIFT_4K);
 	iommu_init_table(tbl, hose->node);
 	iommu_register_group(tbl, pci_domain_nr(hose->bus), 0);
 

arch/powerpc/platforms/powernv/pci.h

···
 		      int where, int size, u32 val);
 extern void pnv_pci_setup_iommu_table(struct iommu_table *tbl,
 				      void *tce_mem, u64 tce_size,
-				      u64 dma_offset);
+				      u64 dma_offset, unsigned page_shift);
 extern void pnv_pci_init_p5ioc2_hub(struct device_node *np);
 extern void pnv_pci_init_ioda_hub(struct device_node *np);
 extern void pnv_pci_init_ioda2_phb(struct device_node *np);