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 <aik@ozlabs.ru>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c
index 40f968e..9f28e18 100644 (file)
--- a/arch/powerpc/platforms/powernv/pci-ioda.c
+++ b/arch/powerpc/platforms/powernv/pci-ioda.c
@@ -656,7 +656,7 @@ static void pnv_pci_ioda_setup_dma_pe(struct pnv_phb *phb,
        /* 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);
@@ -786,7 +786,8 @@ static void pnv_pci_ioda2_setup_dma_pe(struct pnv_phb *phb,
 
        /* 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);

diff --git a/arch/powerpc/platforms/powernv/pci-p5ioc2.c b/arch/powerpc/platforms/powernv/pci-p5ioc2.c
index e3807d6..94ce348 100644 (file)
--- a/arch/powerpc/platforms/powernv/pci-p5ioc2.c
+++ b/arch/powerpc/platforms/powernv/pci-p5ioc2.c
@@ -172,7 +172,8 @@ static void __init pnv_pci_init_p5ioc2_phb(struct device_node *np, u64 hub_id,
        /* 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)

diff --git a/arch/powerpc/platforms/powernv/pci.c b/arch/powerpc/platforms/powernv/pci.c
index b6cb996..4dff552 100644 (file)
--- a/arch/powerpc/platforms/powernv/pci.c
+++ b/arch/powerpc/platforms/powernv/pci.c
@@ -628,11 +628,11 @@ static void pnv_tce_free_rm(struct iommu_table *tbl, long index, long npages)
 
 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;
@@ -657,7 +657,7 @@ static struct iommu_table *pnv_pci_setup_bml_iommu(struct pci_controller *hose)
        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);
 

diff --git a/arch/powerpc/platforms/powernv/pci.h b/arch/powerpc/platforms/powernv/pci.h
index 676232c..6f5ff69 100644 (file)
--- a/arch/powerpc/platforms/powernv/pci.h
+++ b/arch/powerpc/platforms/powernv/pci.h
@@ -198,7 +198,7 @@ int pnv_pci_cfg_write(struct device_node *dn,
                      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);