diff options
Diffstat (limited to 'arch/powerpc/platforms/iseries/iommu.c')
| -rw-r--r-- | arch/powerpc/platforms/iseries/iommu.c | 27 |
1 files changed, 7 insertions, 20 deletions
diff --git a/arch/powerpc/platforms/iseries/iommu.c b/arch/powerpc/platforms/iseries/iommu.c index f4cbbcf8773a..d7a756d5135c 100644 --- a/arch/powerpc/platforms/iseries/iommu.c +++ b/arch/powerpc/platforms/iseries/iommu.c @@ -27,6 +27,7 @@ #include <linux/types.h> #include <linux/dma-mapping.h> #include <linux/list.h> +#include <linux/pci.h> #include <asm/iommu.h> #include <asm/tce.h> @@ -43,9 +44,6 @@ static void tce_build_iSeries(struct iommu_table *tbl, long index, long npages, u64 rc; u64 tce, rpn; - index <<= TCE_PAGE_FACTOR; - npages <<= TCE_PAGE_FACTOR; - while (npages--) { rpn = virt_to_abs(uaddr) >> TCE_SHIFT; tce = (rpn & TCE_RPN_MASK) << TCE_RPN_SHIFT; @@ -75,9 +73,6 @@ static void tce_free_iSeries(struct iommu_table *tbl, long index, long npages) { u64 rc; - npages <<= TCE_PAGE_FACTOR; - index <<= TCE_PAGE_FACTOR; - while (npages--) { rc = HvCallXm_setTce((u64)tbl->it_index, (u64)index, 0); if (rc) @@ -120,12 +115,10 @@ void iommu_table_getparms_iSeries(unsigned long busno, { struct iommu_table_cb *parms; - parms = kmalloc(sizeof(*parms), GFP_KERNEL); + parms = kzalloc(sizeof(*parms), GFP_KERNEL); if (parms == NULL) panic("PCI_DMA: TCE Table Allocation failed."); - memset(parms, 0, sizeof(*parms)); - parms->itc_busno = busno; parms->itc_slotno = slotno; parms->itc_virtbus = virtbus; @@ -136,10 +129,9 @@ void iommu_table_getparms_iSeries(unsigned long busno, panic("PCI_DMA: parms->size is zero, parms is 0x%p", parms); /* itc_size is in pages worth of table, it_size is in # of entries */ - tbl->it_size = ((parms->itc_size * TCE_PAGE_SIZE) / - TCE_ENTRY_SIZE) >> TCE_PAGE_FACTOR; + tbl->it_size = (parms->itc_size * TCE_PAGE_SIZE) / TCE_ENTRY_SIZE; tbl->it_busno = parms->itc_busno; - tbl->it_offset = parms->itc_offset >> TCE_PAGE_FACTOR; + tbl->it_offset = parms->itc_offset; tbl->it_index = parms->itc_index; tbl->it_blocksize = 1; tbl->it_type = virtbus ? TCE_VB : TCE_PCI; @@ -175,7 +167,7 @@ static struct iommu_table *iommu_table_find(struct iommu_table * tbl) } -void iommu_devnode_init_iSeries(struct device_node *dn) +void iommu_devnode_init_iSeries(struct pci_dev *pdev, struct device_node *dn) { struct iommu_table *tbl; struct pci_dn *pdn = PCI_DN(dn); @@ -193,19 +185,14 @@ void iommu_devnode_init_iSeries(struct device_node *dn) pdn->iommu_table = iommu_init_table(tbl, -1); else kfree(tbl); + pdev->dev.archdata.dma_data = pdn->iommu_table; } #endif -static void iommu_dev_setup_iSeries(struct pci_dev *dev) { } -static void iommu_bus_setup_iSeries(struct pci_bus *bus) { } - void iommu_init_early_iSeries(void) { ppc_md.tce_build = tce_build_iSeries; ppc_md.tce_free = tce_free_iSeries; - ppc_md.iommu_dev_setup = iommu_dev_setup_iSeries; - ppc_md.iommu_bus_setup = iommu_bus_setup_iSeries; - - pci_iommu_init(); + pci_dma_ops = &dma_iommu_ops; } |